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 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 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 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 } 102 103 104 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 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 */ 194 195 196 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 } 284 285 286 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