hostap/src/ap/authsrv.c

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/*
* 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;
eap_user = hostapd_get_eap_user(ctx, identity, identity_len, phase2);
if (eap_user == NULL)
return -1;
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)
return -1;
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->ttls_auth = eap_user->ttls_auth;
return 0;
}
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";
#ifdef CONFIG_RADIUS_TEST
srv.dump_msk_file = conf->dump_msk_file;
#endif /* CONFIG_RADIUS_TEST */
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_connection_params params;
hapd->ssl_ctx = tls_init(NULL);
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.ocsp_stapling_response =
hapd->conf->ocsp_stapling_response;
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,
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 */
}