2 * RADIUS authentication server
3 * Copyright (c) 2005-2009, 2011-2014, Jouni Malinen <j@w1.fi>
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
13 #endif /* CONFIG_SQLITE */
18 #include "eap_server/eap.h"
19 #include "ap/ap_config.h"
20 #include "crypto/tls.h"
21 #include "radius_server.h"
24 * RADIUS_SESSION_TIMEOUT - Session timeout in seconds
26 #define RADIUS_SESSION_TIMEOUT 60
29 * RADIUS_MAX_SESSION - Maximum number of active sessions
31 #define RADIUS_MAX_SESSION 100
34 * RADIUS_MAX_MSG_LEN - Maximum message length for incoming RADIUS messages
36 #define RADIUS_MAX_MSG_LEN 3000
38 static const struct eapol_callbacks radius_server_eapol_cb;
41 struct radius_server_data;
44 * struct radius_server_counters - RADIUS server statistics counters
46 struct radius_server_counters {
49 u32 dup_access_requests;
52 u32 access_challenges;
53 u32 malformed_access_requests;
54 u32 bad_authenticators;
59 u32 invalid_acct_requests;
61 u32 malformed_acct_requests;
62 u32 acct_bad_authenticators;
63 u32 unknown_acct_types;
67 * struct radius_session - Internal RADIUS server data for a session
69 struct radius_session {
70 struct radius_session *next;
71 struct radius_client *client;
72 struct radius_server_data *server;
75 struct eap_eapol_interface *eap_if;
76 char *username; /* from User-Name attribute */
79 struct radius_msg *last_msg;
82 struct sockaddr_storage last_from;
83 socklen_t last_fromlen;
85 struct radius_msg *last_reply;
86 u8 last_authenticator[16];
88 unsigned int remediation:1;
89 unsigned int macacl:1;
91 struct hostapd_radius_attr *accept_attr;
95 * struct radius_client - Internal RADIUS server data for a client
97 struct radius_client {
98 struct radius_client *next;
102 struct in6_addr addr6;
103 struct in6_addr mask6;
104 #endif /* CONFIG_IPV6 */
106 int shared_secret_len;
107 struct radius_session *sessions;
108 struct radius_server_counters counters;
112 * struct radius_server_data - Internal RADIUS server data
114 struct radius_server_data {
116 * auth_sock - Socket for RADIUS authentication messages
121 * acct_sock - Socket for RADIUS accounting messages
126 * clients - List of authorized RADIUS clients
128 struct radius_client *clients;
131 * next_sess_id - Next session identifier
133 unsigned int next_sess_id;
136 * conf_ctx - Context pointer for callbacks
138 * This is used as the ctx argument in get_eap_user() calls.
143 * num_sess - Number of active sessions
148 * eap_sim_db_priv - EAP-SIM/AKA database context
150 * This is passed to the EAP-SIM/AKA server implementation as a
153 void *eap_sim_db_priv;
156 * ssl_ctx - TLS context
158 * This is passed to the EAP server implementation as a callback
159 * context for TLS operations.
164 * pac_opaque_encr_key - PAC-Opaque encryption key for EAP-FAST
166 * This parameter is used to set a key for EAP-FAST to encrypt the
167 * PAC-Opaque data. It can be set to %NULL if EAP-FAST is not used. If
168 * set, must point to a 16-octet key.
170 u8 *pac_opaque_encr_key;
173 * eap_fast_a_id - EAP-FAST authority identity (A-ID)
175 * If EAP-FAST is not used, this can be set to %NULL. In theory, this
176 * is a variable length field, but due to some existing implementations
177 * requiring A-ID to be 16 octets in length, it is recommended to use
178 * that length for the field to provide interoperability with deployed
179 * peer implementations.
184 * eap_fast_a_id_len - Length of eap_fast_a_id buffer in octets
186 size_t eap_fast_a_id_len;
189 * eap_fast_a_id_info - EAP-FAST authority identifier information
191 * This A-ID-Info contains a user-friendly name for the A-ID. For
192 * example, this could be the enterprise and server names in
193 * human-readable format. This field is encoded as UTF-8. If EAP-FAST
194 * is not used, this can be set to %NULL.
196 char *eap_fast_a_id_info;
199 * eap_fast_prov - EAP-FAST provisioning modes
201 * 0 = provisioning disabled, 1 = only anonymous provisioning allowed,
202 * 2 = only authenticated provisioning allowed, 3 = both provisioning
208 * pac_key_lifetime - EAP-FAST PAC-Key lifetime in seconds
210 * This is the hard limit on how long a provisioned PAC-Key can be
213 int pac_key_lifetime;
216 * pac_key_refresh_time - EAP-FAST PAC-Key refresh time in seconds
218 * This is a soft limit on the PAC-Key. The server will automatically
219 * generate a new PAC-Key when this number of seconds (or fewer) of the
222 int pac_key_refresh_time;
225 * eap_sim_aka_result_ind - EAP-SIM/AKA protected success indication
227 * This controls whether the protected success/failure indication
228 * (AT_RESULT_IND) is used with EAP-SIM and EAP-AKA.
230 int eap_sim_aka_result_ind;
233 * tnc - Trusted Network Connect (TNC)
235 * This controls whether TNC is enabled and will be required before the
236 * peer is allowed to connect. Note: This is only used with EAP-TTLS
237 * and EAP-FAST. If any other EAP method is enabled, the peer will be
238 * allowed to connect without TNC.
243 * pwd_group - The D-H group assigned for EAP-pwd
245 * If EAP-pwd is not used it can be set to zero.
250 * server_id - Server identity
252 const char *server_id;
255 * erp - Whether EAP Re-authentication Protocol (ERP) is enabled
257 * This controls whether the authentication server derives ERP key
258 * hierarchy (rRK and rIK) from full EAP authentication and allows
259 * these keys to be used to perform ERP to derive rMSK instead of full
260 * EAP authentication to derive MSK.
264 const char *erp_domain;
266 struct dl_list erp_keys; /* struct eap_server_erp_key */
268 unsigned int tls_session_lifetime;
271 * wps - Wi-Fi Protected Setup context
273 * If WPS is used with an external RADIUS server (which is quite
274 * unlikely configuration), this is used to provide a pointer to WPS
275 * context data. Normally, this can be set to %NULL.
277 struct wps_context *wps;
280 * ipv6 - Whether to enable IPv6 support in the RADIUS server
285 * start_time - Timestamp of server start
287 struct os_reltime start_time;
290 * counters - Statistics counters for server operations
292 * These counters are the sum over all clients.
294 struct radius_server_counters counters;
297 * get_eap_user - Callback for fetching EAP user information
298 * @ctx: Context data from conf_ctx
299 * @identity: User identity
300 * @identity_len: identity buffer length in octets
301 * @phase2: Whether this is for Phase 2 identity
302 * @user: Data structure for filling in the user information
303 * Returns: 0 on success, -1 on failure
305 * This is used to fetch information from user database. The callback
306 * will fill in information about allowed EAP methods and the user
307 * password. The password field will be an allocated copy of the
308 * password data and RADIUS server will free it after use.
310 int (*get_eap_user)(void *ctx, const u8 *identity, size_t identity_len,
311 int phase2, struct eap_user *user);
314 * eap_req_id_text - Optional data for EAP-Request/Identity
316 * This can be used to configure an optional, displayable message that
317 * will be sent in EAP-Request/Identity. This string can contain an
318 * ASCII-0 character (nul) to separate network infromation per RFC
319 * 4284. The actual string length is explicit provided in
320 * eap_req_id_text_len since nul character will not be used as a string
323 char *eap_req_id_text;
326 * eap_req_id_text_len - Length of eap_req_id_text buffer in octets
328 size_t eap_req_id_text_len;
331 * msg_ctx - Context data for wpa_msg() calls
335 #ifdef CONFIG_RADIUS_TEST
337 #endif /* CONFIG_RADIUS_TEST */
339 char *subscr_remediation_url;
340 u8 subscr_remediation_method;
344 #endif /* CONFIG_SQLITE */
348 #define RADIUS_DEBUG(args...) \
349 wpa_printf(MSG_DEBUG, "RADIUS SRV: " args)
350 #define RADIUS_ERROR(args...) \
351 wpa_printf(MSG_ERROR, "RADIUS SRV: " args)
352 #define RADIUS_DUMP(args...) \
353 wpa_hexdump(MSG_MSGDUMP, "RADIUS SRV: " args)
354 #define RADIUS_DUMP_ASCII(args...) \
355 wpa_hexdump_ascii(MSG_MSGDUMP, "RADIUS SRV: " args)
358 static void radius_server_session_timeout(void *eloop_ctx, void *timeout_ctx);
359 static void radius_server_session_remove_timeout(void *eloop_ctx,
362 void srv_log(struct radius_session *sess, const char *fmt, ...)
365 void srv_log(struct radius_session *sess, const char *fmt, ...)
372 buflen = vsnprintf(NULL, 0, fmt, ap) + 1;
375 buf = os_malloc(buflen);
379 vsnprintf(buf, buflen, fmt, ap);
382 RADIUS_DEBUG("[0x%x %s] %s", sess->sess_id, sess->nas_ip, buf);
385 if (sess->server->db) {
387 sql = sqlite3_mprintf("INSERT INTO authlog"
388 "(timestamp,session,nas_ip,username,note)"
390 "strftime('%%Y-%%m-%%d %%H:%%M:%%f',"
391 "'now'),%u,%Q,%Q,%Q)",
392 sess->sess_id, sess->nas_ip,
393 sess->username, buf);
395 if (sqlite3_exec(sess->server->db, sql, NULL, NULL,
396 NULL) != SQLITE_OK) {
397 RADIUS_ERROR("Failed to add authlog entry into sqlite database: %s",
398 sqlite3_errmsg(sess->server->db));
403 #endif /* CONFIG_SQLITE */
409 static struct radius_client *
410 radius_server_get_client(struct radius_server_data *data, struct in_addr *addr,
413 struct radius_client *client = data->clients;
418 struct in6_addr *addr6;
421 addr6 = (struct in6_addr *) addr;
422 for (i = 0; i < 16; i++) {
423 if ((addr6->s6_addr[i] &
424 client->mask6.s6_addr[i]) !=
425 (client->addr6.s6_addr[i] &
426 client->mask6.s6_addr[i])) {
435 #endif /* CONFIG_IPV6 */
436 if (!ipv6 && (client->addr.s_addr & client->mask.s_addr) ==
437 (addr->s_addr & client->mask.s_addr)) {
441 client = client->next;
448 static struct radius_session *
449 radius_server_get_session(struct radius_client *client, unsigned int sess_id)
451 struct radius_session *sess = client->sessions;
454 if (sess->sess_id == sess_id) {
464 static void radius_server_session_free(struct radius_server_data *data,
465 struct radius_session *sess)
467 eloop_cancel_timeout(radius_server_session_timeout, data, sess);
468 eloop_cancel_timeout(radius_server_session_remove_timeout, data, sess);
469 eap_server_sm_deinit(sess->eap);
470 radius_msg_free(sess->last_msg);
471 os_free(sess->last_from_addr);
472 radius_msg_free(sess->last_reply);
473 os_free(sess->username);
474 os_free(sess->nas_ip);
480 static void radius_server_session_remove(struct radius_server_data *data,
481 struct radius_session *sess)
483 struct radius_client *client = sess->client;
484 struct radius_session *session, *prev;
486 eloop_cancel_timeout(radius_server_session_remove_timeout, data, sess);
489 session = client->sessions;
491 if (session == sess) {
493 client->sessions = sess->next;
495 prev->next = sess->next;
497 radius_server_session_free(data, sess);
501 session = session->next;
506 static void radius_server_session_remove_timeout(void *eloop_ctx,
509 struct radius_server_data *data = eloop_ctx;
510 struct radius_session *sess = timeout_ctx;
511 RADIUS_DEBUG("Removing completed session 0x%x", sess->sess_id);
512 radius_server_session_remove(data, sess);
516 static void radius_server_session_timeout(void *eloop_ctx, void *timeout_ctx)
518 struct radius_server_data *data = eloop_ctx;
519 struct radius_session *sess = timeout_ctx;
521 RADIUS_DEBUG("Timing out authentication session 0x%x", sess->sess_id);
522 radius_server_session_remove(data, sess);
526 static struct radius_session *
527 radius_server_new_session(struct radius_server_data *data,
528 struct radius_client *client)
530 struct radius_session *sess;
532 if (data->num_sess >= RADIUS_MAX_SESSION) {
533 RADIUS_DEBUG("Maximum number of existing session - no room "
534 "for a new session");
538 sess = os_zalloc(sizeof(*sess));
543 sess->client = client;
544 sess->sess_id = data->next_sess_id++;
545 sess->next = client->sessions;
546 client->sessions = sess;
547 eloop_register_timeout(RADIUS_SESSION_TIMEOUT, 0,
548 radius_server_session_timeout, data, sess);
554 #ifdef CONFIG_TESTING_OPTIONS
555 static void radius_server_testing_options_tls(struct radius_session *sess,
557 struct eap_config *eap_conf)
559 int test = atoi(tls);
563 srv_log(sess, "TLS test - break VerifyData");
564 eap_conf->tls_test_flags = TLS_BREAK_VERIFY_DATA;
567 srv_log(sess, "TLS test - break ServerKeyExchange ServerParams hash");
568 eap_conf->tls_test_flags = TLS_BREAK_SRV_KEY_X_HASH;
571 srv_log(sess, "TLS test - break ServerKeyExchange ServerParams Signature");
572 eap_conf->tls_test_flags = TLS_BREAK_SRV_KEY_X_SIGNATURE;
575 srv_log(sess, "TLS test - RSA-DHE using a short 511-bit prime");
576 eap_conf->tls_test_flags = TLS_DHE_PRIME_511B;
579 srv_log(sess, "TLS test - RSA-DHE using a short 767-bit prime");
580 eap_conf->tls_test_flags = TLS_DHE_PRIME_767B;
583 srv_log(sess, "TLS test - RSA-DHE using a bogus 15 \"prime\"");
584 eap_conf->tls_test_flags = TLS_DHE_PRIME_15;
587 srv_log(sess, "TLS test - RSA-DHE using a short 58-bit prime in long container");
588 eap_conf->tls_test_flags = TLS_DHE_PRIME_58B;
591 srv_log(sess, "TLS test - RSA-DHE using a non-prime");
592 eap_conf->tls_test_flags = TLS_DHE_NON_PRIME;
595 srv_log(sess, "Unrecognized TLS test");
599 #endif /* CONFIG_TESTING_OPTIONS */
601 static void radius_server_testing_options(struct radius_session *sess,
602 struct eap_config *eap_conf)
604 #ifdef CONFIG_TESTING_OPTIONS
607 pos = os_strstr(sess->username, "@test-");
611 if (os_strncmp(pos, "tls-", 4) == 0)
612 radius_server_testing_options_tls(sess, pos + 4, eap_conf);
614 srv_log(sess, "Unrecognized test: %s", pos);
615 #endif /* CONFIG_TESTING_OPTIONS */
619 static struct radius_session *
620 radius_server_get_new_session(struct radius_server_data *data,
621 struct radius_client *client,
622 struct radius_msg *msg, const char *from_addr)
627 struct radius_session *sess;
628 struct eap_config eap_conf;
631 RADIUS_DEBUG("Creating a new session");
633 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_USER_NAME, &user,
634 &user_len, NULL) < 0) {
635 RADIUS_DEBUG("Could not get User-Name");
638 RADIUS_DUMP_ASCII("User-Name", user, user_len);
640 os_memset(&tmp, 0, sizeof(tmp));
641 res = data->get_eap_user(data->conf_ctx, user, user_len, 0, &tmp);
642 bin_clear_free(tmp.password, tmp.password_len);
645 RADIUS_DEBUG("User-Name not found from user database");
649 RADIUS_DEBUG("Matching user entry found");
650 sess = radius_server_new_session(data, client);
652 RADIUS_DEBUG("Failed to create a new session");
655 sess->accept_attr = tmp.accept_attr;
656 sess->macacl = tmp.macacl;
658 sess->username = os_malloc(user_len * 4 + 1);
659 if (sess->username == NULL) {
660 radius_server_session_free(data, sess);
663 printf_encode(sess->username, user_len * 4 + 1, user, user_len);
665 sess->nas_ip = os_strdup(from_addr);
666 if (sess->nas_ip == NULL) {
667 radius_server_session_free(data, sess);
671 srv_log(sess, "New session created");
673 os_memset(&eap_conf, 0, sizeof(eap_conf));
674 eap_conf.ssl_ctx = data->ssl_ctx;
675 eap_conf.msg_ctx = data->msg_ctx;
676 eap_conf.eap_sim_db_priv = data->eap_sim_db_priv;
677 eap_conf.backend_auth = TRUE;
678 eap_conf.eap_server = 1;
679 eap_conf.pac_opaque_encr_key = data->pac_opaque_encr_key;
680 eap_conf.eap_fast_a_id = data->eap_fast_a_id;
681 eap_conf.eap_fast_a_id_len = data->eap_fast_a_id_len;
682 eap_conf.eap_fast_a_id_info = data->eap_fast_a_id_info;
683 eap_conf.eap_fast_prov = data->eap_fast_prov;
684 eap_conf.pac_key_lifetime = data->pac_key_lifetime;
685 eap_conf.pac_key_refresh_time = data->pac_key_refresh_time;
686 eap_conf.eap_sim_aka_result_ind = data->eap_sim_aka_result_ind;
687 eap_conf.tnc = data->tnc;
688 eap_conf.wps = data->wps;
689 eap_conf.pwd_group = data->pwd_group;
690 eap_conf.server_id = (const u8 *) data->server_id;
691 eap_conf.server_id_len = os_strlen(data->server_id);
692 eap_conf.erp = data->erp;
693 eap_conf.tls_session_lifetime = data->tls_session_lifetime;
694 radius_server_testing_options(sess, &eap_conf);
695 sess->eap = eap_server_sm_init(sess, &radius_server_eapol_cb,
697 if (sess->eap == NULL) {
698 RADIUS_DEBUG("Failed to initialize EAP state machine for the "
700 radius_server_session_free(data, sess);
703 sess->eap_if = eap_get_interface(sess->eap);
704 sess->eap_if->eapRestart = TRUE;
705 sess->eap_if->portEnabled = TRUE;
707 RADIUS_DEBUG("New session 0x%x initialized", sess->sess_id);
713 static struct radius_msg *
714 radius_server_encapsulate_eap(struct radius_server_data *data,
715 struct radius_client *client,
716 struct radius_session *sess,
717 struct radius_msg *request)
719 struct radius_msg *msg;
721 unsigned int sess_id;
722 struct radius_hdr *hdr = radius_msg_get_hdr(request);
724 if (sess->eap_if->eapFail) {
725 sess->eap_if->eapFail = FALSE;
726 code = RADIUS_CODE_ACCESS_REJECT;
727 } else if (sess->eap_if->eapSuccess) {
728 sess->eap_if->eapSuccess = FALSE;
729 code = RADIUS_CODE_ACCESS_ACCEPT;
731 sess->eap_if->eapReq = FALSE;
732 code = RADIUS_CODE_ACCESS_CHALLENGE;
735 msg = radius_msg_new(code, hdr->identifier);
737 RADIUS_DEBUG("Failed to allocate reply message");
741 sess_id = htonl(sess->sess_id);
742 if (code == RADIUS_CODE_ACCESS_CHALLENGE &&
743 !radius_msg_add_attr(msg, RADIUS_ATTR_STATE,
744 (u8 *) &sess_id, sizeof(sess_id))) {
745 RADIUS_DEBUG("Failed to add State attribute");
748 if (sess->eap_if->eapReqData &&
749 !radius_msg_add_eap(msg, wpabuf_head(sess->eap_if->eapReqData),
750 wpabuf_len(sess->eap_if->eapReqData))) {
751 RADIUS_DEBUG("Failed to add EAP-Message attribute");
754 if (code == RADIUS_CODE_ACCESS_ACCEPT && sess->eap_if->eapKeyData) {
756 #ifdef CONFIG_RADIUS_TEST
757 if (data->dump_msk_file) {
759 char buf[2 * 64 + 1];
760 f = fopen(data->dump_msk_file, "a");
762 len = sess->eap_if->eapKeyDataLen;
765 len = wpa_snprintf_hex(
767 sess->eap_if->eapKeyData, len);
769 fprintf(f, "%s\n", buf);
773 #endif /* CONFIG_RADIUS_TEST */
774 if (sess->eap_if->eapKeyDataLen > 64) {
777 len = sess->eap_if->eapKeyDataLen / 2;
779 if (!radius_msg_add_mppe_keys(msg, hdr->authenticator,
780 (u8 *) client->shared_secret,
781 client->shared_secret_len,
782 sess->eap_if->eapKeyData + len,
783 len, sess->eap_if->eapKeyData,
785 RADIUS_DEBUG("Failed to add MPPE key attributes");
790 if (code == RADIUS_CODE_ACCESS_ACCEPT && sess->remediation &&
791 data->subscr_remediation_url) {
793 size_t url_len = os_strlen(data->subscr_remediation_url);
794 buf = os_malloc(1 + url_len);
796 radius_msg_free(msg);
799 buf[0] = data->subscr_remediation_method;
800 os_memcpy(&buf[1], data->subscr_remediation_url, url_len);
801 if (!radius_msg_add_wfa(
802 msg, RADIUS_VENDOR_ATTR_WFA_HS20_SUBSCR_REMEDIATION,
804 RADIUS_DEBUG("Failed to add WFA-HS20-SubscrRem");
807 } else if (code == RADIUS_CODE_ACCESS_ACCEPT && sess->remediation) {
809 if (!radius_msg_add_wfa(
810 msg, RADIUS_VENDOR_ATTR_WFA_HS20_SUBSCR_REMEDIATION,
812 RADIUS_DEBUG("Failed to add WFA-HS20-SubscrRem");
815 #endif /* CONFIG_HS20 */
817 if (radius_msg_copy_attr(msg, request, RADIUS_ATTR_PROXY_STATE) < 0) {
818 RADIUS_DEBUG("Failed to copy Proxy-State attribute(s)");
819 radius_msg_free(msg);
823 if (code == RADIUS_CODE_ACCESS_ACCEPT) {
824 struct hostapd_radius_attr *attr;
825 for (attr = sess->accept_attr; attr; attr = attr->next) {
826 if (!radius_msg_add_attr(msg, attr->type,
827 wpabuf_head(attr->val),
828 wpabuf_len(attr->val))) {
829 wpa_printf(MSG_ERROR, "Could not add RADIUS attribute");
830 radius_msg_free(msg);
836 if (radius_msg_finish_srv(msg, (u8 *) client->shared_secret,
837 client->shared_secret_len,
838 hdr->authenticator) < 0) {
839 RADIUS_DEBUG("Failed to add Message-Authenticator attribute");
846 static struct radius_msg *
847 radius_server_macacl(struct radius_server_data *data,
848 struct radius_client *client,
849 struct radius_session *sess,
850 struct radius_msg *request)
852 struct radius_msg *msg;
854 struct radius_hdr *hdr = radius_msg_get_hdr(request);
858 code = RADIUS_CODE_ACCESS_ACCEPT;
860 if (radius_msg_get_attr_ptr(request, RADIUS_ATTR_USER_PASSWORD, &pw,
861 &pw_len, NULL) < 0) {
862 RADIUS_DEBUG("Could not get User-Password");
863 code = RADIUS_CODE_ACCESS_REJECT;
868 os_memset(&tmp, 0, sizeof(tmp));
869 res = data->get_eap_user(data->conf_ctx, (u8 *) sess->username,
870 os_strlen(sess->username), 0, &tmp);
871 if (res || !tmp.macacl || tmp.password == NULL) {
872 RADIUS_DEBUG("No MAC ACL user entry");
873 bin_clear_free(tmp.password, tmp.password_len);
874 code = RADIUS_CODE_ACCESS_REJECT;
877 res = radius_user_password_hide(
878 request, tmp.password, tmp.password_len,
879 (u8 *) client->shared_secret,
880 client->shared_secret_len,
882 bin_clear_free(tmp.password, tmp.password_len);
884 if (res < 0 || pw_len != (size_t) res ||
885 os_memcmp_const(pw, buf, res) != 0) {
886 RADIUS_DEBUG("Incorrect User-Password");
887 code = RADIUS_CODE_ACCESS_REJECT;
892 msg = radius_msg_new(code, hdr->identifier);
894 RADIUS_DEBUG("Failed to allocate reply message");
898 if (radius_msg_copy_attr(msg, request, RADIUS_ATTR_PROXY_STATE) < 0) {
899 RADIUS_DEBUG("Failed to copy Proxy-State attribute(s)");
900 radius_msg_free(msg);
904 if (code == RADIUS_CODE_ACCESS_ACCEPT) {
905 struct hostapd_radius_attr *attr;
906 for (attr = sess->accept_attr; attr; attr = attr->next) {
907 if (!radius_msg_add_attr(msg, attr->type,
908 wpabuf_head(attr->val),
909 wpabuf_len(attr->val))) {
910 wpa_printf(MSG_ERROR, "Could not add RADIUS attribute");
911 radius_msg_free(msg);
917 if (radius_msg_finish_srv(msg, (u8 *) client->shared_secret,
918 client->shared_secret_len,
919 hdr->authenticator) < 0) {
920 RADIUS_DEBUG("Failed to add Message-Authenticator attribute");
927 static int radius_server_reject(struct radius_server_data *data,
928 struct radius_client *client,
929 struct radius_msg *request,
930 struct sockaddr *from, socklen_t fromlen,
931 const char *from_addr, int from_port)
933 struct radius_msg *msg;
935 struct eap_hdr eapfail;
937 struct radius_hdr *hdr = radius_msg_get_hdr(request);
939 RADIUS_DEBUG("Reject invalid request from %s:%d",
940 from_addr, from_port);
942 msg = radius_msg_new(RADIUS_CODE_ACCESS_REJECT, hdr->identifier);
947 os_memset(&eapfail, 0, sizeof(eapfail));
948 eapfail.code = EAP_CODE_FAILURE;
949 eapfail.identifier = 0;
950 eapfail.length = host_to_be16(sizeof(eapfail));
952 if (!radius_msg_add_eap(msg, (u8 *) &eapfail, sizeof(eapfail))) {
953 RADIUS_DEBUG("Failed to add EAP-Message attribute");
956 if (radius_msg_copy_attr(msg, request, RADIUS_ATTR_PROXY_STATE) < 0) {
957 RADIUS_DEBUG("Failed to copy Proxy-State attribute(s)");
958 radius_msg_free(msg);
962 if (radius_msg_finish_srv(msg, (u8 *) client->shared_secret,
963 client->shared_secret_len,
964 hdr->authenticator) <
966 RADIUS_DEBUG("Failed to add Message-Authenticator attribute");
969 if (wpa_debug_level <= MSG_MSGDUMP) {
970 radius_msg_dump(msg);
973 data->counters.access_rejects++;
974 client->counters.access_rejects++;
975 buf = radius_msg_get_buf(msg);
976 if (sendto(data->auth_sock, wpabuf_head(buf), wpabuf_len(buf), 0,
977 (struct sockaddr *) from, sizeof(*from)) < 0) {
978 wpa_printf(MSG_INFO, "sendto[RADIUS SRV]: %s", strerror(errno));
982 radius_msg_free(msg);
988 static int radius_server_request(struct radius_server_data *data,
989 struct radius_msg *msg,
990 struct sockaddr *from, socklen_t fromlen,
991 struct radius_client *client,
992 const char *from_addr, int from_port,
993 struct radius_session *force_sess)
995 struct wpabuf *eap = NULL;
996 int res, state_included = 0;
999 struct radius_session *sess;
1000 struct radius_msg *reply;
1001 int is_complete = 0;
1006 res = radius_msg_get_attr(msg, RADIUS_ATTR_STATE, statebuf,
1008 state_included = res >= 0;
1009 if (res == sizeof(statebuf)) {
1010 state = WPA_GET_BE32(statebuf);
1011 sess = radius_server_get_session(client, state);
1018 RADIUS_DEBUG("Request for session 0x%x", sess->sess_id);
1019 } else if (state_included) {
1020 RADIUS_DEBUG("State attribute included but no session found");
1021 radius_server_reject(data, client, msg, from, fromlen,
1022 from_addr, from_port);
1025 sess = radius_server_get_new_session(data, client, msg,
1028 RADIUS_DEBUG("Could not create a new session");
1029 radius_server_reject(data, client, msg, from, fromlen,
1030 from_addr, from_port);
1035 if (sess->last_from_port == from_port &&
1036 sess->last_identifier == radius_msg_get_hdr(msg)->identifier &&
1037 os_memcmp(sess->last_authenticator,
1038 radius_msg_get_hdr(msg)->authenticator, 16) == 0) {
1039 RADIUS_DEBUG("Duplicate message from %s", from_addr);
1040 data->counters.dup_access_requests++;
1041 client->counters.dup_access_requests++;
1043 if (sess->last_reply) {
1045 buf = radius_msg_get_buf(sess->last_reply);
1046 res = sendto(data->auth_sock, wpabuf_head(buf),
1048 (struct sockaddr *) from, fromlen);
1050 wpa_printf(MSG_INFO, "sendto[RADIUS SRV]: %s",
1056 RADIUS_DEBUG("No previous reply available for duplicate "
1061 eap = radius_msg_get_eap(msg);
1062 if (eap == NULL && sess->macacl) {
1063 reply = radius_server_macacl(data, client, sess, msg);
1069 RADIUS_DEBUG("No EAP-Message in RADIUS packet from %s",
1071 data->counters.packets_dropped++;
1072 client->counters.packets_dropped++;
1076 RADIUS_DUMP("Received EAP data", wpabuf_head(eap), wpabuf_len(eap));
1078 /* FIX: if Code is Request, Success, or Failure, send Access-Reject;
1079 * RFC3579 Sect. 2.6.2.
1080 * Include EAP-Response/Nak with no preferred method if
1082 * If code is not 1-4, discard the packet silently.
1083 * Or is this already done by the EAP state machine? */
1085 wpabuf_free(sess->eap_if->eapRespData);
1086 sess->eap_if->eapRespData = eap;
1087 sess->eap_if->eapResp = TRUE;
1088 eap_server_sm_step(sess->eap);
1090 if ((sess->eap_if->eapReq || sess->eap_if->eapSuccess ||
1091 sess->eap_if->eapFail) && sess->eap_if->eapReqData) {
1092 RADIUS_DUMP("EAP data from the state machine",
1093 wpabuf_head(sess->eap_if->eapReqData),
1094 wpabuf_len(sess->eap_if->eapReqData));
1095 } else if (sess->eap_if->eapFail) {
1096 RADIUS_DEBUG("No EAP data from the state machine, but eapFail "
1098 } else if (eap_sm_method_pending(sess->eap)) {
1099 radius_msg_free(sess->last_msg);
1100 sess->last_msg = msg;
1101 sess->last_from_port = from_port;
1102 os_free(sess->last_from_addr);
1103 sess->last_from_addr = os_strdup(from_addr);
1104 sess->last_fromlen = fromlen;
1105 os_memcpy(&sess->last_from, from, fromlen);
1108 RADIUS_DEBUG("No EAP data from the state machine - ignore this"
1109 " Access-Request silently (assuming it was a "
1111 data->counters.packets_dropped++;
1112 client->counters.packets_dropped++;
1116 if (sess->eap_if->eapSuccess || sess->eap_if->eapFail)
1118 if (sess->eap_if->eapFail)
1119 srv_log(sess, "EAP authentication failed");
1120 else if (sess->eap_if->eapSuccess)
1121 srv_log(sess, "EAP authentication succeeded");
1123 reply = radius_server_encapsulate_eap(data, client, sess, msg);
1128 struct radius_hdr *hdr;
1130 RADIUS_DEBUG("Reply to %s:%d", from_addr, from_port);
1131 if (wpa_debug_level <= MSG_MSGDUMP) {
1132 radius_msg_dump(reply);
1135 switch (radius_msg_get_hdr(reply)->code) {
1136 case RADIUS_CODE_ACCESS_ACCEPT:
1137 srv_log(sess, "Sending Access-Accept");
1138 data->counters.access_accepts++;
1139 client->counters.access_accepts++;
1141 case RADIUS_CODE_ACCESS_REJECT:
1142 srv_log(sess, "Sending Access-Reject");
1143 data->counters.access_rejects++;
1144 client->counters.access_rejects++;
1146 case RADIUS_CODE_ACCESS_CHALLENGE:
1147 data->counters.access_challenges++;
1148 client->counters.access_challenges++;
1151 buf = radius_msg_get_buf(reply);
1152 res = sendto(data->auth_sock, wpabuf_head(buf),
1154 (struct sockaddr *) from, fromlen);
1156 wpa_printf(MSG_INFO, "sendto[RADIUS SRV]: %s",
1159 radius_msg_free(sess->last_reply);
1160 sess->last_reply = reply;
1161 sess->last_from_port = from_port;
1162 hdr = radius_msg_get_hdr(msg);
1163 sess->last_identifier = hdr->identifier;
1164 os_memcpy(sess->last_authenticator, hdr->authenticator, 16);
1166 data->counters.packets_dropped++;
1167 client->counters.packets_dropped++;
1171 RADIUS_DEBUG("Removing completed session 0x%x after timeout",
1173 eloop_cancel_timeout(radius_server_session_remove_timeout,
1175 eloop_register_timeout(10, 0,
1176 radius_server_session_remove_timeout,
1184 static void radius_server_receive_auth(int sock, void *eloop_ctx,
1187 struct radius_server_data *data = eloop_ctx;
1190 struct sockaddr_storage ss;
1191 struct sockaddr_in sin;
1193 struct sockaddr_in6 sin6;
1194 #endif /* CONFIG_IPV6 */
1198 struct radius_client *client = NULL;
1199 struct radius_msg *msg = NULL;
1203 buf = os_malloc(RADIUS_MAX_MSG_LEN);
1208 fromlen = sizeof(from);
1209 len = recvfrom(sock, buf, RADIUS_MAX_MSG_LEN, 0,
1210 (struct sockaddr *) &from.ss, &fromlen);
1212 wpa_printf(MSG_INFO, "recvfrom[radius_server]: %s",
1219 if (inet_ntop(AF_INET6, &from.sin6.sin6_addr, abuf,
1220 sizeof(abuf)) == NULL)
1222 from_port = ntohs(from.sin6.sin6_port);
1223 RADIUS_DEBUG("Received %d bytes from %s:%d",
1224 len, abuf, from_port);
1226 client = radius_server_get_client(data,
1228 &from.sin6.sin6_addr, 1);
1230 #endif /* CONFIG_IPV6 */
1233 os_strlcpy(abuf, inet_ntoa(from.sin.sin_addr), sizeof(abuf));
1234 from_port = ntohs(from.sin.sin_port);
1235 RADIUS_DEBUG("Received %d bytes from %s:%d",
1236 len, abuf, from_port);
1238 client = radius_server_get_client(data, &from.sin.sin_addr, 0);
1241 RADIUS_DUMP("Received data", buf, len);
1243 if (client == NULL) {
1244 RADIUS_DEBUG("Unknown client %s - packet ignored", abuf);
1245 data->counters.invalid_requests++;
1249 msg = radius_msg_parse(buf, len);
1251 RADIUS_DEBUG("Parsing incoming RADIUS frame failed");
1252 data->counters.malformed_access_requests++;
1253 client->counters.malformed_access_requests++;
1260 if (wpa_debug_level <= MSG_MSGDUMP) {
1261 radius_msg_dump(msg);
1264 if (radius_msg_get_hdr(msg)->code != RADIUS_CODE_ACCESS_REQUEST) {
1265 RADIUS_DEBUG("Unexpected RADIUS code %d",
1266 radius_msg_get_hdr(msg)->code);
1267 data->counters.unknown_types++;
1268 client->counters.unknown_types++;
1272 data->counters.access_requests++;
1273 client->counters.access_requests++;
1275 if (radius_msg_verify_msg_auth(msg, (u8 *) client->shared_secret,
1276 client->shared_secret_len, NULL)) {
1277 RADIUS_DEBUG("Invalid Message-Authenticator from %s", abuf);
1278 data->counters.bad_authenticators++;
1279 client->counters.bad_authenticators++;
1283 if (radius_server_request(data, msg, (struct sockaddr *) &from,
1284 fromlen, client, abuf, from_port, NULL) ==
1286 return; /* msg was stored with the session */
1289 radius_msg_free(msg);
1294 static void radius_server_receive_acct(int sock, void *eloop_ctx,
1297 struct radius_server_data *data = eloop_ctx;
1300 struct sockaddr_storage ss;
1301 struct sockaddr_in sin;
1303 struct sockaddr_in6 sin6;
1304 #endif /* CONFIG_IPV6 */
1308 struct radius_client *client = NULL;
1309 struct radius_msg *msg = NULL, *resp = NULL;
1312 struct radius_hdr *hdr;
1313 struct wpabuf *rbuf;
1315 buf = os_malloc(RADIUS_MAX_MSG_LEN);
1320 fromlen = sizeof(from);
1321 len = recvfrom(sock, buf, RADIUS_MAX_MSG_LEN, 0,
1322 (struct sockaddr *) &from.ss, &fromlen);
1324 wpa_printf(MSG_INFO, "recvfrom[radius_server]: %s",
1331 if (inet_ntop(AF_INET6, &from.sin6.sin6_addr, abuf,
1332 sizeof(abuf)) == NULL)
1334 from_port = ntohs(from.sin6.sin6_port);
1335 RADIUS_DEBUG("Received %d bytes from %s:%d",
1336 len, abuf, from_port);
1338 client = radius_server_get_client(data,
1340 &from.sin6.sin6_addr, 1);
1342 #endif /* CONFIG_IPV6 */
1345 os_strlcpy(abuf, inet_ntoa(from.sin.sin_addr), sizeof(abuf));
1346 from_port = ntohs(from.sin.sin_port);
1347 RADIUS_DEBUG("Received %d bytes from %s:%d",
1348 len, abuf, from_port);
1350 client = radius_server_get_client(data, &from.sin.sin_addr, 0);
1353 RADIUS_DUMP("Received data", buf, len);
1355 if (client == NULL) {
1356 RADIUS_DEBUG("Unknown client %s - packet ignored", abuf);
1357 data->counters.invalid_acct_requests++;
1361 msg = radius_msg_parse(buf, len);
1363 RADIUS_DEBUG("Parsing incoming RADIUS frame failed");
1364 data->counters.malformed_acct_requests++;
1365 client->counters.malformed_acct_requests++;
1372 if (wpa_debug_level <= MSG_MSGDUMP) {
1373 radius_msg_dump(msg);
1376 if (radius_msg_get_hdr(msg)->code != RADIUS_CODE_ACCOUNTING_REQUEST) {
1377 RADIUS_DEBUG("Unexpected RADIUS code %d",
1378 radius_msg_get_hdr(msg)->code);
1379 data->counters.unknown_acct_types++;
1380 client->counters.unknown_acct_types++;
1384 data->counters.acct_requests++;
1385 client->counters.acct_requests++;
1387 if (radius_msg_verify_acct_req(msg, (u8 *) client->shared_secret,
1388 client->shared_secret_len)) {
1389 RADIUS_DEBUG("Invalid Authenticator from %s", abuf);
1390 data->counters.acct_bad_authenticators++;
1391 client->counters.acct_bad_authenticators++;
1395 /* TODO: Write accounting information to a file or database */
1397 hdr = radius_msg_get_hdr(msg);
1399 resp = radius_msg_new(RADIUS_CODE_ACCOUNTING_RESPONSE, hdr->identifier);
1403 radius_msg_finish_acct_resp(resp, (u8 *) client->shared_secret,
1404 client->shared_secret_len,
1405 hdr->authenticator);
1407 RADIUS_DEBUG("Reply to %s:%d", abuf, from_port);
1408 if (wpa_debug_level <= MSG_MSGDUMP) {
1409 radius_msg_dump(resp);
1411 rbuf = radius_msg_get_buf(resp);
1412 data->counters.acct_responses++;
1413 client->counters.acct_responses++;
1414 res = sendto(data->acct_sock, wpabuf_head(rbuf), wpabuf_len(rbuf), 0,
1415 (struct sockaddr *) &from.ss, fromlen);
1417 wpa_printf(MSG_INFO, "sendto[RADIUS SRV]: %s",
1422 radius_msg_free(resp);
1423 radius_msg_free(msg);
1428 static int radius_server_disable_pmtu_discovery(int s)
1431 #if defined(IP_MTU_DISCOVER) && defined(IP_PMTUDISC_DONT)
1432 /* Turn off Path MTU discovery on IPv4/UDP sockets. */
1433 int action = IP_PMTUDISC_DONT;
1434 r = setsockopt(s, IPPROTO_IP, IP_MTU_DISCOVER, &action,
1437 wpa_printf(MSG_ERROR, "Failed to set IP_MTU_DISCOVER: "
1438 "%s", strerror(errno));
1444 static int radius_server_open_socket(int port)
1447 struct sockaddr_in addr;
1449 s = socket(PF_INET, SOCK_DGRAM, 0);
1451 wpa_printf(MSG_INFO, "RADIUS: socket: %s", strerror(errno));
1455 radius_server_disable_pmtu_discovery(s);
1457 os_memset(&addr, 0, sizeof(addr));
1458 addr.sin_family = AF_INET;
1459 addr.sin_port = htons(port);
1460 if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
1461 wpa_printf(MSG_INFO, "RADIUS: bind: %s", strerror(errno));
1471 static int radius_server_open_socket6(int port)
1474 struct sockaddr_in6 addr;
1476 s = socket(PF_INET6, SOCK_DGRAM, 0);
1478 wpa_printf(MSG_INFO, "RADIUS: socket[IPv6]: %s",
1483 os_memset(&addr, 0, sizeof(addr));
1484 addr.sin6_family = AF_INET6;
1485 os_memcpy(&addr.sin6_addr, &in6addr_any, sizeof(in6addr_any));
1486 addr.sin6_port = htons(port);
1487 if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
1488 wpa_printf(MSG_INFO, "RADIUS: bind: %s", strerror(errno));
1495 #endif /* CONFIG_IPV6 */
1498 static void radius_server_free_sessions(struct radius_server_data *data,
1499 struct radius_session *sessions)
1501 struct radius_session *session, *prev;
1506 session = session->next;
1507 radius_server_session_free(data, prev);
1512 static void radius_server_free_clients(struct radius_server_data *data,
1513 struct radius_client *clients)
1515 struct radius_client *client, *prev;
1520 client = client->next;
1522 radius_server_free_sessions(data, prev->sessions);
1523 os_free(prev->shared_secret);
1529 static struct radius_client *
1530 radius_server_read_clients(const char *client_file, int ipv6)
1533 const int buf_size = 1024;
1535 struct radius_client *clients, *tail, *entry;
1536 int line = 0, mask, failed = 0, i;
1537 struct in_addr addr;
1539 struct in6_addr addr6;
1540 #endif /* CONFIG_IPV6 */
1543 f = fopen(client_file, "r");
1545 RADIUS_ERROR("Could not open client file '%s'", client_file);
1549 buf = os_malloc(buf_size);
1555 clients = tail = NULL;
1556 while (fgets(buf, buf_size, f)) {
1557 /* Configuration file format:
1558 * 192.168.1.0/24 secret
1559 * 192.168.1.2 secret
1560 * fe80::211:22ff:fe33:4455/64 secretipv6
1563 buf[buf_size - 1] = '\0';
1565 while (*pos != '\0' && *pos != '\n')
1569 if (*buf == '\0' || *buf == '#')
1573 while ((*pos >= '0' && *pos <= '9') || *pos == '.' ||
1574 (*pos >= 'a' && *pos <= 'f') || *pos == ':' ||
1575 (*pos >= 'A' && *pos <= 'F')) {
1587 mask = strtol(pos, &end, 10);
1589 (mask < 0 || mask > (ipv6 ? 128 : 32))) {
1595 mask = ipv6 ? 128 : 32;
1599 if (!ipv6 && inet_aton(buf, &addr) == 0) {
1604 if (ipv6 && inet_pton(AF_INET6, buf, &addr6) <= 0) {
1605 if (inet_pton(AF_INET, buf, &addr) <= 0) {
1609 /* Convert IPv4 address to IPv6 */
1612 os_memset(addr6.s6_addr, 0, 10);
1613 addr6.s6_addr[10] = 0xff;
1614 addr6.s6_addr[11] = 0xff;
1615 os_memcpy(addr6.s6_addr + 12, (char *) &addr.s_addr,
1618 #endif /* CONFIG_IPV6 */
1620 while (*pos == ' ' || *pos == '\t') {
1629 entry = os_zalloc(sizeof(*entry));
1630 if (entry == NULL) {
1634 entry->shared_secret = os_strdup(pos);
1635 if (entry->shared_secret == NULL) {
1640 entry->shared_secret_len = os_strlen(entry->shared_secret);
1642 entry->addr.s_addr = addr.s_addr;
1644 for (i = 0; i < mask; i++)
1645 val |= 1 << (31 - i);
1646 entry->mask.s_addr = htonl(val);
1650 int offset = mask / 8;
1652 os_memcpy(entry->addr6.s6_addr, addr6.s6_addr, 16);
1653 os_memset(entry->mask6.s6_addr, 0xff, offset);
1655 for (i = 0; i < (mask % 8); i++)
1656 val |= 1 << (7 - i);
1658 entry->mask6.s6_addr[offset] = val;
1660 #endif /* CONFIG_IPV6 */
1663 clients = tail = entry;
1671 RADIUS_ERROR("Invalid line %d in '%s'", line, client_file);
1672 radius_server_free_clients(NULL, clients);
1684 * radius_server_init - Initialize RADIUS server
1685 * @conf: Configuration for the RADIUS server
1686 * Returns: Pointer to private RADIUS server context or %NULL on failure
1688 * This initializes a RADIUS server instance and returns a context pointer that
1689 * will be used in other calls to the RADIUS server module. The server can be
1690 * deinitialize by calling radius_server_deinit().
1692 struct radius_server_data *
1693 radius_server_init(struct radius_server_conf *conf)
1695 struct radius_server_data *data;
1699 wpa_printf(MSG_ERROR, "RADIUS server compiled without IPv6 support");
1702 #endif /* CONFIG_IPV6 */
1704 data = os_zalloc(sizeof(*data));
1708 dl_list_init(&data->erp_keys);
1709 os_get_reltime(&data->start_time);
1710 data->conf_ctx = conf->conf_ctx;
1711 data->eap_sim_db_priv = conf->eap_sim_db_priv;
1712 data->ssl_ctx = conf->ssl_ctx;
1713 data->msg_ctx = conf->msg_ctx;
1714 data->ipv6 = conf->ipv6;
1715 if (conf->pac_opaque_encr_key) {
1716 data->pac_opaque_encr_key = os_malloc(16);
1717 if (data->pac_opaque_encr_key) {
1718 os_memcpy(data->pac_opaque_encr_key,
1719 conf->pac_opaque_encr_key, 16);
1722 if (conf->eap_fast_a_id) {
1723 data->eap_fast_a_id = os_malloc(conf->eap_fast_a_id_len);
1724 if (data->eap_fast_a_id) {
1725 os_memcpy(data->eap_fast_a_id, conf->eap_fast_a_id,
1726 conf->eap_fast_a_id_len);
1727 data->eap_fast_a_id_len = conf->eap_fast_a_id_len;
1730 if (conf->eap_fast_a_id_info)
1731 data->eap_fast_a_id_info = os_strdup(conf->eap_fast_a_id_info);
1732 data->eap_fast_prov = conf->eap_fast_prov;
1733 data->pac_key_lifetime = conf->pac_key_lifetime;
1734 data->pac_key_refresh_time = conf->pac_key_refresh_time;
1735 data->get_eap_user = conf->get_eap_user;
1736 data->eap_sim_aka_result_ind = conf->eap_sim_aka_result_ind;
1737 data->tnc = conf->tnc;
1738 data->wps = conf->wps;
1739 data->pwd_group = conf->pwd_group;
1740 data->server_id = conf->server_id;
1741 if (conf->eap_req_id_text) {
1742 data->eap_req_id_text = os_malloc(conf->eap_req_id_text_len);
1743 if (data->eap_req_id_text) {
1744 os_memcpy(data->eap_req_id_text, conf->eap_req_id_text,
1745 conf->eap_req_id_text_len);
1746 data->eap_req_id_text_len = conf->eap_req_id_text_len;
1749 data->erp = conf->erp;
1750 data->erp_domain = conf->erp_domain;
1751 data->tls_session_lifetime = conf->tls_session_lifetime;
1753 if (conf->subscr_remediation_url) {
1754 data->subscr_remediation_url =
1755 os_strdup(conf->subscr_remediation_url);
1757 data->subscr_remediation_method = conf->subscr_remediation_method;
1759 #ifdef CONFIG_SQLITE
1760 if (conf->sqlite_file) {
1761 if (sqlite3_open(conf->sqlite_file, &data->db)) {
1762 RADIUS_ERROR("Could not open SQLite file '%s'",
1764 radius_server_deinit(data);
1768 #endif /* CONFIG_SQLITE */
1770 #ifdef CONFIG_RADIUS_TEST
1771 if (conf->dump_msk_file)
1772 data->dump_msk_file = os_strdup(conf->dump_msk_file);
1773 #endif /* CONFIG_RADIUS_TEST */
1775 data->clients = radius_server_read_clients(conf->client_file,
1777 if (data->clients == NULL) {
1778 wpa_printf(MSG_ERROR, "No RADIUS clients configured");
1779 radius_server_deinit(data);
1785 data->auth_sock = radius_server_open_socket6(conf->auth_port);
1787 #endif /* CONFIG_IPV6 */
1788 data->auth_sock = radius_server_open_socket(conf->auth_port);
1789 if (data->auth_sock < 0) {
1790 wpa_printf(MSG_ERROR, "Failed to open UDP socket for RADIUS authentication server");
1791 radius_server_deinit(data);
1794 if (eloop_register_read_sock(data->auth_sock,
1795 radius_server_receive_auth,
1797 radius_server_deinit(data);
1801 if (conf->acct_port) {
1804 data->acct_sock = radius_server_open_socket6(
1807 #endif /* CONFIG_IPV6 */
1808 data->acct_sock = radius_server_open_socket(conf->acct_port);
1809 if (data->acct_sock < 0) {
1810 wpa_printf(MSG_ERROR, "Failed to open UDP socket for RADIUS accounting server");
1811 radius_server_deinit(data);
1814 if (eloop_register_read_sock(data->acct_sock,
1815 radius_server_receive_acct,
1817 radius_server_deinit(data);
1821 data->acct_sock = -1;
1829 * radius_server_erp_flush - Flush all ERP keys
1830 * @data: RADIUS server context from radius_server_init()
1832 void radius_server_erp_flush(struct radius_server_data *data)
1834 struct eap_server_erp_key *erp;
1838 while ((erp = dl_list_first(&data->erp_keys, struct eap_server_erp_key,
1840 dl_list_del(&erp->list);
1841 bin_clear_free(erp, sizeof(*erp));
1847 * radius_server_deinit - Deinitialize RADIUS server
1848 * @data: RADIUS server context from radius_server_init()
1850 void radius_server_deinit(struct radius_server_data *data)
1855 if (data->auth_sock >= 0) {
1856 eloop_unregister_read_sock(data->auth_sock);
1857 close(data->auth_sock);
1860 if (data->acct_sock >= 0) {
1861 eloop_unregister_read_sock(data->acct_sock);
1862 close(data->acct_sock);
1865 radius_server_free_clients(data, data->clients);
1867 os_free(data->pac_opaque_encr_key);
1868 os_free(data->eap_fast_a_id);
1869 os_free(data->eap_fast_a_id_info);
1870 os_free(data->eap_req_id_text);
1871 #ifdef CONFIG_RADIUS_TEST
1872 os_free(data->dump_msk_file);
1873 #endif /* CONFIG_RADIUS_TEST */
1874 os_free(data->subscr_remediation_url);
1876 #ifdef CONFIG_SQLITE
1878 sqlite3_close(data->db);
1879 #endif /* CONFIG_SQLITE */
1881 radius_server_erp_flush(data);
1888 * radius_server_get_mib - Get RADIUS server MIB information
1889 * @data: RADIUS server context from radius_server_init()
1890 * @buf: Buffer for returning the MIB data in text format
1891 * @buflen: buf length in octets
1892 * Returns: Number of octets written into buf
1894 int radius_server_get_mib(struct radius_server_data *data, char *buf,
1900 struct os_reltime now;
1901 struct radius_client *cli;
1903 /* RFC 2619 - RADIUS Authentication Server MIB */
1905 if (data == NULL || buflen == 0)
1911 os_get_reltime(&now);
1912 uptime = (now.sec - data->start_time.sec) * 100 +
1913 ((now.usec - data->start_time.usec) / 10000) % 100;
1914 ret = os_snprintf(pos, end - pos,
1915 "RADIUS-AUTH-SERVER-MIB\n"
1916 "radiusAuthServIdent=hostapd\n"
1917 "radiusAuthServUpTime=%d\n"
1918 "radiusAuthServResetTime=0\n"
1919 "radiusAuthServConfigReset=4\n",
1921 if (os_snprintf_error(end - pos, ret)) {
1927 ret = os_snprintf(pos, end - pos,
1928 "radiusAuthServTotalAccessRequests=%u\n"
1929 "radiusAuthServTotalInvalidRequests=%u\n"
1930 "radiusAuthServTotalDupAccessRequests=%u\n"
1931 "radiusAuthServTotalAccessAccepts=%u\n"
1932 "radiusAuthServTotalAccessRejects=%u\n"
1933 "radiusAuthServTotalAccessChallenges=%u\n"
1934 "radiusAuthServTotalMalformedAccessRequests=%u\n"
1935 "radiusAuthServTotalBadAuthenticators=%u\n"
1936 "radiusAuthServTotalPacketsDropped=%u\n"
1937 "radiusAuthServTotalUnknownTypes=%u\n"
1938 "radiusAccServTotalRequests=%u\n"
1939 "radiusAccServTotalInvalidRequests=%u\n"
1940 "radiusAccServTotalResponses=%u\n"
1941 "radiusAccServTotalMalformedRequests=%u\n"
1942 "radiusAccServTotalBadAuthenticators=%u\n"
1943 "radiusAccServTotalUnknownTypes=%u\n",
1944 data->counters.access_requests,
1945 data->counters.invalid_requests,
1946 data->counters.dup_access_requests,
1947 data->counters.access_accepts,
1948 data->counters.access_rejects,
1949 data->counters.access_challenges,
1950 data->counters.malformed_access_requests,
1951 data->counters.bad_authenticators,
1952 data->counters.packets_dropped,
1953 data->counters.unknown_types,
1954 data->counters.acct_requests,
1955 data->counters.invalid_acct_requests,
1956 data->counters.acct_responses,
1957 data->counters.malformed_acct_requests,
1958 data->counters.acct_bad_authenticators,
1959 data->counters.unknown_acct_types);
1960 if (os_snprintf_error(end - pos, ret)) {
1966 for (cli = data->clients, idx = 0; cli; cli = cli->next, idx++) {
1967 char abuf[50], mbuf[50];
1970 if (inet_ntop(AF_INET6, &cli->addr6, abuf,
1971 sizeof(abuf)) == NULL)
1973 if (inet_ntop(AF_INET6, &cli->mask6, mbuf,
1974 sizeof(mbuf)) == NULL)
1977 #endif /* CONFIG_IPV6 */
1979 os_strlcpy(abuf, inet_ntoa(cli->addr), sizeof(abuf));
1980 os_strlcpy(mbuf, inet_ntoa(cli->mask), sizeof(mbuf));
1983 ret = os_snprintf(pos, end - pos,
1984 "radiusAuthClientIndex=%u\n"
1985 "radiusAuthClientAddress=%s/%s\n"
1986 "radiusAuthServAccessRequests=%u\n"
1987 "radiusAuthServDupAccessRequests=%u\n"
1988 "radiusAuthServAccessAccepts=%u\n"
1989 "radiusAuthServAccessRejects=%u\n"
1990 "radiusAuthServAccessChallenges=%u\n"
1991 "radiusAuthServMalformedAccessRequests=%u\n"
1992 "radiusAuthServBadAuthenticators=%u\n"
1993 "radiusAuthServPacketsDropped=%u\n"
1994 "radiusAuthServUnknownTypes=%u\n"
1995 "radiusAccServTotalRequests=%u\n"
1996 "radiusAccServTotalInvalidRequests=%u\n"
1997 "radiusAccServTotalResponses=%u\n"
1998 "radiusAccServTotalMalformedRequests=%u\n"
1999 "radiusAccServTotalBadAuthenticators=%u\n"
2000 "radiusAccServTotalUnknownTypes=%u\n",
2003 cli->counters.access_requests,
2004 cli->counters.dup_access_requests,
2005 cli->counters.access_accepts,
2006 cli->counters.access_rejects,
2007 cli->counters.access_challenges,
2008 cli->counters.malformed_access_requests,
2009 cli->counters.bad_authenticators,
2010 cli->counters.packets_dropped,
2011 cli->counters.unknown_types,
2012 cli->counters.acct_requests,
2013 cli->counters.invalid_acct_requests,
2014 cli->counters.acct_responses,
2015 cli->counters.malformed_acct_requests,
2016 cli->counters.acct_bad_authenticators,
2017 cli->counters.unknown_acct_types);
2018 if (os_snprintf_error(end - pos, ret)) {
2029 static int radius_server_get_eap_user(void *ctx, const u8 *identity,
2030 size_t identity_len, int phase2,
2031 struct eap_user *user)
2033 struct radius_session *sess = ctx;
2034 struct radius_server_data *data = sess->server;
2037 ret = data->get_eap_user(data->conf_ctx, identity, identity_len,
2039 if (ret == 0 && user) {
2040 sess->accept_attr = user->accept_attr;
2041 sess->remediation = user->remediation;
2042 sess->macacl = user->macacl;
2046 RADIUS_DEBUG("%s: User-Name not found from user database",
2054 static const char * radius_server_get_eap_req_id_text(void *ctx, size_t *len)
2056 struct radius_session *sess = ctx;
2057 struct radius_server_data *data = sess->server;
2058 *len = data->eap_req_id_text_len;
2059 return data->eap_req_id_text;
2063 static void radius_server_log_msg(void *ctx, const char *msg)
2065 struct radius_session *sess = ctx;
2066 srv_log(sess, "EAP: %s", msg);
2072 static const char * radius_server_get_erp_domain(void *ctx)
2074 struct radius_session *sess = ctx;
2075 struct radius_server_data *data = sess->server;
2077 return data->erp_domain;
2081 static struct eap_server_erp_key *
2082 radius_server_erp_get_key(void *ctx, const char *keyname)
2084 struct radius_session *sess = ctx;
2085 struct radius_server_data *data = sess->server;
2086 struct eap_server_erp_key *erp;
2088 dl_list_for_each(erp, &data->erp_keys, struct eap_server_erp_key,
2090 if (os_strcmp(erp->keyname_nai, keyname) == 0)
2098 static int radius_server_erp_add_key(void *ctx, struct eap_server_erp_key *erp)
2100 struct radius_session *sess = ctx;
2101 struct radius_server_data *data = sess->server;
2103 dl_list_add(&data->erp_keys, &erp->list);
2107 #endif /* CONFIG_ERP */
2110 static const struct eapol_callbacks radius_server_eapol_cb =
2112 .get_eap_user = radius_server_get_eap_user,
2113 .get_eap_req_id_text = radius_server_get_eap_req_id_text,
2114 .log_msg = radius_server_log_msg,
2116 .get_erp_send_reauth_start = NULL,
2117 .get_erp_domain = radius_server_get_erp_domain,
2118 .erp_get_key = radius_server_erp_get_key,
2119 .erp_add_key = radius_server_erp_add_key,
2120 #endif /* CONFIG_ERP */
2125 * radius_server_eap_pending_cb - Pending EAP data notification
2126 * @data: RADIUS server context from radius_server_init()
2127 * @ctx: Pending EAP context pointer
2129 * This function is used to notify EAP server module that a pending operation
2130 * has been completed and processing of the EAP session can proceed.
2132 void radius_server_eap_pending_cb(struct radius_server_data *data, void *ctx)
2134 struct radius_client *cli;
2135 struct radius_session *s, *sess = NULL;
2136 struct radius_msg *msg;
2141 for (cli = data->clients; cli; cli = cli->next) {
2142 for (s = cli->sessions; s; s = s->next) {
2143 if (s->eap == ctx && s->last_msg) {
2153 RADIUS_DEBUG("No session matched callback ctx");
2157 msg = sess->last_msg;
2158 sess->last_msg = NULL;
2159 eap_sm_pending_cb(sess->eap);
2160 if (radius_server_request(data, msg,
2161 (struct sockaddr *) &sess->last_from,
2162 sess->last_fromlen, cli,
2163 sess->last_from_addr,
2164 sess->last_from_port, sess) == -2)
2165 return; /* msg was stored with the session */
2167 radius_msg_free(msg);