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;
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_memdup(eap_user->password,
eap_user->password_len);
if (user->password == NULL)
goto out;
user->password_len = eap_user->password_len;
user->password_hash = eap_user->password_hash;
if (eap_user->salt && eap_user->salt_len) {
user->salt = os_memdup(eap_user->salt,
eap_user->salt_len);
if (!user->salt)
goto out;
user->salt_len = eap_user->salt_len;
}
}
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;
user->t_c_timestamp = eap_user->t_c_timestamp;
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;
srv.hs20_sim_provisioning_url = conf->hs20_sim_provisioning_url;
srv.t_c_server_url = conf->t_c_server_url;
#endif /* CONFIG_HS20 */
srv.erp = conf->eap_server_erp;
srv.erp_domain = conf->erp_domain;
srv.tls_session_lifetime = conf->tls_session_lifetime;
srv.tls_flags = conf->tls_flags;
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 */
#ifdef EAP_TLS_FUNCS
static void authsrv_tls_event(void *ctx, enum tls_event ev,
union tls_event_data *data)
{
switch (ev) {
case TLS_CERT_CHAIN_SUCCESS:
wpa_printf(MSG_DEBUG, "authsrv: remote certificate verification success");
break;
case TLS_CERT_CHAIN_FAILURE:
wpa_printf(MSG_INFO, "authsrv: certificate chain failure: reason=%d depth=%d subject='%s' err='%s'",
data->cert_fail.reason,
data->cert_fail.depth,
data->cert_fail.subject,
data->cert_fail.reason_txt);
break;
case TLS_PEER_CERTIFICATE:
wpa_printf(MSG_DEBUG, "authsrv: peer certificate: depth=%d serial_num=%s subject=%s",
data->peer_cert.depth,
data->peer_cert.serial_num ? data->peer_cert.serial_num : "N/A",
data->peer_cert.subject);
break;
case TLS_ALERT:
if (data->alert.is_local)
wpa_printf(MSG_DEBUG, "authsrv: local TLS alert: %s",
data->alert.description);
else
wpa_printf(MSG_DEBUG, "authsrv: remote TLS alert: %s",
data->alert.description);
break;
}
}
#endif /* EAP_TLS_FUNCS */
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;
conf.tls_flags = hapd->conf->tls_flags;
conf.event_cb = authsrv_tls_event;
conf.cb_ctx = hapd;
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.openssl_ecdh_curves = hapd->conf->openssl_ecdh_curves;
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,
hapd->conf->check_crl_strict)) {
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 */
}