text: /*
   * Authentication server setup
   * Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
   *
   * This software may be distributed under the terms of the BSD license.
   * See README for more details.
   */
  
  #include "utils/includes.h"
  
  #include "utils/common.h"
  #include "crypto/tls.h"
  #include "eap_server/eap.h"
  #include "eap_server/eap_sim_db.h"
  #include "eapol_auth/eapol_auth_sm.h"
  #include "radius/radius_server.h"
  #include "hostapd.h"
  #include "ap_config.h"
  #include "sta_info.h"
  #include "authsrv.h"
  
  
  #if defined(EAP_SERVER_SIM) || defined(EAP_SERVER_AKA)
  #define EAP_SIM_DB
  #endif /* EAP_SERVER_SIM || EAP_SERVER_AKA */
  
  
  #ifdef EAP_SIM_DB
  static int hostapd_sim_db_cb_sta(struct hostapd_data *hapd,
  				 struct sta_info *sta, void *ctx)
  {
  	if (eapol_auth_eap_pending_cb(sta->eapol_sm, ctx) == 0)
  		return 1;
  	return 0;
  }
  
  
  static void hostapd_sim_db_cb(void *ctx, void *session_ctx)
  {
  	struct hostapd_data *hapd = ctx;
  	if (ap_for_each_sta(hapd, hostapd_sim_db_cb_sta, session_ctx) == 0) {
  #ifdef RADIUS_SERVER
  		radius_server_eap_pending_cb(hapd->radius_srv, session_ctx);
  #endif /* RADIUS_SERVER */
  	}
  }
  #endif /* EAP_SIM_DB */
  
  
  #ifdef RADIUS_SERVER
  
  static int hostapd_radius_get_eap_user(void *ctx, const u8 *identity,
  				       size_t identity_len, int phase2,
  				       struct eap_user *user)
  {
  	const struct hostapd_eap_user *eap_user;
  	int i;
  	int rv = -1;
  
  	eap_user = hostapd_get_eap_user(ctx, identity, identity_len, phase2);
  	if (eap_user == NULL)
  		goto out;
  
  	if (user == NULL)
  		return 0;
  
  	os_memset(user, 0, sizeof(*user));
  	for (i = 0; i < EAP_MAX_METHODS; i++) {
  		user->methods[i].vendor = eap_user->methods[i].vendor;
  		user->methods[i].method = eap_user->methods[i].method;
  	}
  
  	if (eap_user->password) {
  		user->password = os_malloc(eap_user->password_len);
  		if (user->password == NULL)
  			goto out;
  		os_memcpy(user->password, eap_user->password,
  			  eap_user->password_len);
  		user->password_len = eap_user->password_len;
  		user->password_hash = eap_user->password_hash;
  	}
  	user->force_version = eap_user->force_version;
  	user->macacl = eap_user->macacl;
  	user->ttls_auth = eap_user->ttls_auth;
  	user->remediation = eap_user->remediation;
  	user->accept_attr = eap_user->accept_attr;
  	rv = 0;
  
  out:
  	if (rv)
  		wpa_printf(MSG_DEBUG, "%s: Failed to find user", __func__);
  
  	return rv;
  }
  
  
  static int hostapd_setup_radius_srv(struct hostapd_data *hapd)
  {
  	struct radius_server_conf srv;
  	struct hostapd_bss_config *conf = hapd->conf;
  	os_memset(&srv, 0, sizeof(srv));
  	srv.client_file = conf->radius_server_clients;
  	srv.auth_port = conf->radius_server_auth_port;
  	srv.acct_port = conf->radius_server_acct_port;
  	srv.conf_ctx = hapd;
  	srv.eap_sim_db_priv = hapd->eap_sim_db_priv;
  	srv.ssl_ctx = hapd->ssl_ctx;
  	srv.msg_ctx = hapd->msg_ctx;
  	srv.pac_opaque_encr_key = conf->pac_opaque_encr_key;
  	srv.eap_fast_a_id = conf->eap_fast_a_id;
  	srv.eap_fast_a_id_len = conf->eap_fast_a_id_len;
  	srv.eap_fast_a_id_info = conf->eap_fast_a_id_info;
  	srv.eap_fast_prov = conf->eap_fast_prov;
  	srv.pac_key_lifetime = conf->pac_key_lifetime;
  	srv.pac_key_refresh_time = conf->pac_key_refresh_time;
  	srv.eap_sim_aka_result_ind = conf->eap_sim_aka_result_ind;
  	srv.tnc = conf->tnc;
  	srv.wps = hapd->wps;
  	srv.ipv6 = conf->radius_server_ipv6;
  	srv.get_eap_user = hostapd_radius_get_eap_user;
  	srv.eap_req_id_text = conf->eap_req_id_text;
  	srv.eap_req_id_text_len = conf->eap_req_id_text_len;
  	srv.pwd_group = conf->pwd_group;
  	srv.server_id = conf->server_id ? conf->server_id : "hostapd";
  	srv.sqlite_file = conf->eap_user_sqlite;
  #ifdef CONFIG_RADIUS_TEST
  	srv.dump_msk_file = conf->dump_msk_file;
  #endif /* CONFIG_RADIUS_TEST */
  #ifdef CONFIG_HS20
  	srv.subscr_remediation_url = conf->subscr_remediation_url;
  	srv.subscr_remediation_method = conf->subscr_remediation_method;
  #endif /* CONFIG_HS20 */
  	srv.erp = conf->eap_server_erp;
  	srv.erp_domain = conf->erp_domain;
  	srv.tls_session_lifetime = conf->tls_session_lifetime;
  
  	hapd->radius_srv = radius_server_init(&srv);
  	if (hapd->radius_srv == NULL) {
  		wpa_printf(MSG_ERROR, "RADIUS server initialization failed.");
  		return -1;
  	}
  
  	return 0;
  }
  
  #endif /* RADIUS_SERVER */
  
  
  int authsrv_init(struct hostapd_data *hapd)
  {
  #ifdef EAP_TLS_FUNCS
  	if (hapd->conf->eap_server &&
  	    (hapd->conf->ca_cert || hapd->conf->server_cert ||
  	     hapd->conf->private_key || hapd->conf->dh_file)) {
  		struct tls_config conf;
  		struct tls_connection_params params;
  
  		os_memset(&conf, 0, sizeof(conf));
  		conf.tls_session_lifetime = hapd->conf->tls_session_lifetime;
  		hapd->ssl_ctx = tls_init(&conf);
  		if (hapd->ssl_ctx == NULL) {
  			wpa_printf(MSG_ERROR, "Failed to initialize TLS");
  			authsrv_deinit(hapd);
  			return -1;
  		}
  
  		os_memset(&params, 0, sizeof(params));
  		params.ca_cert = hapd->conf->ca_cert;
  		params.client_cert = hapd->conf->server_cert;
  		params.private_key = hapd->conf->private_key;
  		params.private_key_passwd = hapd->conf->private_key_passwd;
  		params.dh_file = hapd->conf->dh_file;
  		params.openssl_ciphers = hapd->conf->openssl_ciphers;
  		params.ocsp_stapling_response =
  			hapd->conf->ocsp_stapling_response;
  		params.ocsp_stapling_response_multi =
  			hapd->conf->ocsp_stapling_response_multi;
  
  		if (tls_global_set_params(hapd->ssl_ctx, &params)) {
  			wpa_printf(MSG_ERROR, "Failed to set TLS parameters");
  			authsrv_deinit(hapd);
  			return -1;
  		}
  
  		if (tls_global_set_verify(hapd->ssl_ctx,
  					  hapd->conf->check_crl)) {
  			wpa_printf(MSG_ERROR, "Failed to enable check_crl");
  			authsrv_deinit(hapd);
  			return -1;
  		}
  	}
  #endif /* EAP_TLS_FUNCS */
  
  #ifdef EAP_SIM_DB
  	if (hapd->conf->eap_sim_db) {
  		hapd->eap_sim_db_priv =
  			eap_sim_db_init(hapd->conf->eap_sim_db,
  					hapd->conf->eap_sim_db_timeout,
  					hostapd_sim_db_cb, hapd);
  		if (hapd->eap_sim_db_priv == NULL) {
  			wpa_printf(MSG_ERROR, "Failed to initialize EAP-SIM "
  				   "database interface");
  			authsrv_deinit(hapd);
  			return -1;
  		}
  	}
  #endif /* EAP_SIM_DB */
  
  #ifdef RADIUS_SERVER
  	if (hapd->conf->radius_server_clients &&
  	    hostapd_setup_radius_srv(hapd))
  		return -1;
  #endif /* RADIUS_SERVER */
  
  	return 0;
  }
  
  
  void authsrv_deinit(struct hostapd_data *hapd)
  {
  #ifdef RADIUS_SERVER
  	radius_server_deinit(hapd->radius_srv);
  	hapd->radius_srv = NULL;
  #endif /* RADIUS_SERVER */
  
  #ifdef EAP_TLS_FUNCS
  	if (hapd->ssl_ctx) {
  		tls_deinit(hapd->ssl_ctx);
  		hapd->ssl_ctx = NULL;
  	}
  #endif /* EAP_TLS_FUNCS */
  
  #ifdef EAP_SIM_DB
  	if (hapd->eap_sim_db_priv) {
  		eap_sim_db_deinit(hapd->eap_sim_db_priv);
  		hapd->eap_sim_db_priv = NULL;
  	}
  #endif /* EAP_SIM_DB */
  }
  