1 /*
2 * Authentication server setup
3 * Copyright (c) 2002-2009, 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
9 #include "utils/includes.h"
10
11 #include "utils/common.h"
12 #include "crypto/tls.h"
13 #include "eap_server/eap.h"
14 #include "eap_server/eap_sim_db.h"
15 #include "eapol_auth/eapol_auth_sm.h"
16 #include "radius/radius_server.h"
17 #include "hostapd.h"
18 #include "ap_config.h"
19 #include "sta_info.h"
20 #include "authsrv.h"
21
22
23 #if defined(EAP_SERVER_SIM) || defined(EAP_SERVER_AKA)
24 #define EAP_SIM_DB
25 #endif /* EAP_SERVER_SIM || EAP_SERVER_AKA */
26
27
28 #ifdef EAP_SIM_DB
hostapd_sim_db_cb_sta(struct hostapd_data * hapd,struct sta_info * sta,void * ctx)29 static int hostapd_sim_db_cb_sta(struct hostapd_data *hapd,
30 struct sta_info *sta, void *ctx)
31 {
32 if (eapol_auth_eap_pending_cb(sta->eapol_sm, ctx) == 0)
33 return 1;
34 return 0;
35 }
36
37
hostapd_sim_db_cb(void * ctx,void * session_ctx)38 static void hostapd_sim_db_cb(void *ctx, void *session_ctx)
39 {
40 struct hostapd_data *hapd = ctx;
41 if (ap_for_each_sta(hapd, hostapd_sim_db_cb_sta, session_ctx) == 0) {
42 #ifdef RADIUS_SERVER
43 radius_server_eap_pending_cb(hapd->radius_srv, session_ctx);
44 #endif /* RADIUS_SERVER */
45 }
46 }
47 #endif /* EAP_SIM_DB */
48
49
50 #ifdef RADIUS_SERVER
51
hostapd_radius_get_eap_user(void * ctx,const u8 * identity,size_t identity_len,int phase2,struct eap_user * user)52 static int hostapd_radius_get_eap_user(void *ctx, const u8 *identity,
53 size_t identity_len, int phase2,
54 struct eap_user *user)
55 {
56 const struct hostapd_eap_user *eap_user;
57 int i;
58 int rv = -1;
59
60 eap_user = hostapd_get_eap_user(ctx, identity, identity_len, phase2);
61 if (eap_user == NULL)
62 goto out;
63
64 if (user == NULL)
65 return 0;
66
67 os_memset(user, 0, sizeof(*user));
68 for (i = 0; i < EAP_MAX_METHODS; i++) {
69 user->methods[i].vendor = eap_user->methods[i].vendor;
70 user->methods[i].method = eap_user->methods[i].method;
71 }
72
73 if (eap_user->password) {
74 user->password = os_memdup(eap_user->password,
75 eap_user->password_len);
76 if (user->password == NULL)
77 goto out;
78 user->password_len = eap_user->password_len;
79 user->password_hash = eap_user->password_hash;
80 if (eap_user->salt && eap_user->salt_len) {
81 user->salt = os_memdup(eap_user->salt,
82 eap_user->salt_len);
83 if (!user->salt)
84 goto out;
85 user->salt_len = eap_user->salt_len;
86 }
87 }
88 user->force_version = eap_user->force_version;
89 user->macacl = eap_user->macacl;
90 user->ttls_auth = eap_user->ttls_auth;
91 user->remediation = eap_user->remediation;
92 user->accept_attr = eap_user->accept_attr;
93 user->t_c_timestamp = eap_user->t_c_timestamp;
94 rv = 0;
95
96 out:
97 if (rv)
98 wpa_printf(MSG_DEBUG, "%s: Failed to find user", __func__);
99
100 return rv;
101 }
102
103
hostapd_setup_radius_srv(struct hostapd_data * hapd)104 static int hostapd_setup_radius_srv(struct hostapd_data *hapd)
105 {
106 struct radius_server_conf srv;
107 struct hostapd_bss_config *conf = hapd->conf;
108 os_memset(&srv, 0, sizeof(srv));
109 srv.client_file = conf->radius_server_clients;
110 srv.auth_port = conf->radius_server_auth_port;
111 srv.acct_port = conf->radius_server_acct_port;
112 srv.conf_ctx = hapd;
113 srv.eap_sim_db_priv = hapd->eap_sim_db_priv;
114 srv.ssl_ctx = hapd->ssl_ctx;
115 srv.msg_ctx = hapd->msg_ctx;
116 srv.pac_opaque_encr_key = conf->pac_opaque_encr_key;
117 srv.eap_fast_a_id = conf->eap_fast_a_id;
118 srv.eap_fast_a_id_len = conf->eap_fast_a_id_len;
119 srv.eap_fast_a_id_info = conf->eap_fast_a_id_info;
120 srv.eap_fast_prov = conf->eap_fast_prov;
121 srv.pac_key_lifetime = conf->pac_key_lifetime;
122 srv.pac_key_refresh_time = conf->pac_key_refresh_time;
123 srv.eap_teap_auth = conf->eap_teap_auth;
124 srv.eap_teap_pac_no_inner = conf->eap_teap_pac_no_inner;
125 srv.eap_sim_aka_result_ind = conf->eap_sim_aka_result_ind;
126 srv.eap_sim_id = conf->eap_sim_id;
127 srv.tnc = conf->tnc;
128 srv.wps = hapd->wps;
129 srv.ipv6 = conf->radius_server_ipv6;
130 srv.get_eap_user = hostapd_radius_get_eap_user;
131 srv.eap_req_id_text = conf->eap_req_id_text;
132 srv.eap_req_id_text_len = conf->eap_req_id_text_len;
133 srv.pwd_group = conf->pwd_group;
134 srv.server_id = conf->server_id ? conf->server_id : "hostapd";
135 srv.sqlite_file = conf->eap_user_sqlite;
136 #ifdef CONFIG_RADIUS_TEST
137 srv.dump_msk_file = conf->dump_msk_file;
138 #endif /* CONFIG_RADIUS_TEST */
139 #ifdef CONFIG_HS20
140 srv.subscr_remediation_url = conf->subscr_remediation_url;
141 srv.subscr_remediation_method = conf->subscr_remediation_method;
142 srv.hs20_sim_provisioning_url = conf->hs20_sim_provisioning_url;
143 srv.t_c_server_url = conf->t_c_server_url;
144 #endif /* CONFIG_HS20 */
145 srv.erp = conf->eap_server_erp;
146 srv.erp_domain = conf->erp_domain;
147 srv.tls_session_lifetime = conf->tls_session_lifetime;
148 srv.tls_flags = conf->tls_flags;
149
150 hapd->radius_srv = radius_server_init(&srv);
151 if (hapd->radius_srv == NULL) {
152 wpa_printf(MSG_ERROR, "RADIUS server initialization failed.");
153 return -1;
154 }
155
156 return 0;
157 }
158
159 #endif /* RADIUS_SERVER */
160
161
162 #ifdef EAP_TLS_FUNCS
authsrv_tls_event(void * ctx,enum tls_event ev,union tls_event_data * data)163 static void authsrv_tls_event(void *ctx, enum tls_event ev,
164 union tls_event_data *data)
165 {
166 switch (ev) {
167 case TLS_CERT_CHAIN_SUCCESS:
168 wpa_printf(MSG_DEBUG, "authsrv: remote certificate verification success");
169 break;
170 case TLS_CERT_CHAIN_FAILURE:
171 wpa_printf(MSG_INFO, "authsrv: certificate chain failure: reason=%d depth=%d subject='%s' err='%s'",
172 data->cert_fail.reason,
173 data->cert_fail.depth,
174 data->cert_fail.subject,
175 data->cert_fail.reason_txt);
176 break;
177 case TLS_PEER_CERTIFICATE:
178 wpa_printf(MSG_DEBUG, "authsrv: peer certificate: depth=%d serial_num=%s subject=%s",
179 data->peer_cert.depth,
180 data->peer_cert.serial_num ? data->peer_cert.serial_num : "N/A",
181 data->peer_cert.subject);
182 break;
183 case TLS_ALERT:
184 if (data->alert.is_local)
185 wpa_printf(MSG_DEBUG, "authsrv: local TLS alert: %s",
186 data->alert.description);
187 else
188 wpa_printf(MSG_DEBUG, "authsrv: remote TLS alert: %s",
189 data->alert.description);
190 break;
191 }
192 }
193 #endif /* EAP_TLS_FUNCS */
194
195
authsrv_init(struct hostapd_data * hapd)196 int authsrv_init(struct hostapd_data *hapd)
197 {
198 #ifdef EAP_TLS_FUNCS
199 if (hapd->conf->eap_server &&
200 (hapd->conf->ca_cert || hapd->conf->server_cert ||
201 hapd->conf->private_key || hapd->conf->dh_file ||
202 hapd->conf->server_cert2 || hapd->conf->private_key2)) {
203 struct tls_config conf;
204 struct tls_connection_params params;
205
206 os_memset(&conf, 0, sizeof(conf));
207 conf.tls_session_lifetime = hapd->conf->tls_session_lifetime;
208 if (hapd->conf->crl_reload_interval > 0 &&
209 hapd->conf->check_crl <= 0) {
210 wpa_printf(MSG_INFO,
211 "Cannot enable CRL reload functionality - it depends on check_crl being set");
212 } else if (hapd->conf->crl_reload_interval > 0) {
213 conf.crl_reload_interval =
214 hapd->conf->crl_reload_interval;
215 wpa_printf(MSG_INFO,
216 "Enabled CRL reload functionality");
217 }
218 conf.tls_flags = hapd->conf->tls_flags;
219 conf.event_cb = authsrv_tls_event;
220 conf.cb_ctx = hapd;
221 hapd->ssl_ctx = tls_init(&conf);
222 if (hapd->ssl_ctx == NULL) {
223 wpa_printf(MSG_ERROR, "Failed to initialize TLS");
224 authsrv_deinit(hapd);
225 return -1;
226 }
227
228 os_memset(¶ms, 0, sizeof(params));
229 params.ca_cert = hapd->conf->ca_cert;
230 params.client_cert = hapd->conf->server_cert;
231 params.client_cert2 = hapd->conf->server_cert2;
232 params.private_key = hapd->conf->private_key;
233 params.private_key2 = hapd->conf->private_key2;
234 params.private_key_passwd = hapd->conf->private_key_passwd;
235 params.private_key_passwd2 = hapd->conf->private_key_passwd2;
236 params.dh_file = hapd->conf->dh_file;
237 params.openssl_ciphers = hapd->conf->openssl_ciphers;
238 params.openssl_ecdh_curves = hapd->conf->openssl_ecdh_curves;
239 params.ocsp_stapling_response =
240 hapd->conf->ocsp_stapling_response;
241 params.ocsp_stapling_response_multi =
242 hapd->conf->ocsp_stapling_response_multi;
243 params.check_cert_subject = hapd->conf->check_cert_subject;
244
245 if (tls_global_set_params(hapd->ssl_ctx, ¶ms)) {
246 wpa_printf(MSG_ERROR, "Failed to set TLS parameters");
247 authsrv_deinit(hapd);
248 return -1;
249 }
250
251 if (tls_global_set_verify(hapd->ssl_ctx,
252 hapd->conf->check_crl,
253 hapd->conf->check_crl_strict)) {
254 wpa_printf(MSG_ERROR, "Failed to enable check_crl");
255 authsrv_deinit(hapd);
256 return -1;
257 }
258 }
259 #endif /* EAP_TLS_FUNCS */
260
261 #ifdef EAP_SIM_DB
262 if (hapd->conf->eap_sim_db) {
263 hapd->eap_sim_db_priv =
264 eap_sim_db_init(hapd->conf->eap_sim_db,
265 hapd->conf->eap_sim_db_timeout,
266 hostapd_sim_db_cb, hapd);
267 if (hapd->eap_sim_db_priv == NULL) {
268 wpa_printf(MSG_ERROR, "Failed to initialize EAP-SIM "
269 "database interface");
270 authsrv_deinit(hapd);
271 return -1;
272 }
273 }
274 #endif /* EAP_SIM_DB */
275
276 #ifdef RADIUS_SERVER
277 if (hapd->conf->radius_server_clients &&
278 hostapd_setup_radius_srv(hapd))
279 return -1;
280 #endif /* RADIUS_SERVER */
281
282 return 0;
283 }
284
285
authsrv_deinit(struct hostapd_data * hapd)286 void authsrv_deinit(struct hostapd_data *hapd)
287 {
288 #ifdef RADIUS_SERVER
289 radius_server_deinit(hapd->radius_srv);
290 hapd->radius_srv = NULL;
291 #endif /* RADIUS_SERVER */
292
293 #ifdef EAP_TLS_FUNCS
294 if (hapd->ssl_ctx) {
295 tls_deinit(hapd->ssl_ctx);
296 hapd->ssl_ctx = NULL;
297 }
298 #endif /* EAP_TLS_FUNCS */
299
300 #ifdef EAP_SIM_DB
301 if (hapd->eap_sim_db_priv) {
302 eap_sim_db_deinit(hapd->eap_sim_db_priv);
303 hapd->eap_sim_db_priv = NULL;
304 }
305 #endif /* EAP_SIM_DB */
306 }
307