/*

 * Copyright (C) 2016 Nikos Mavrogiannopoulos

 *

 * Author: Nikos Mavrogiannopoulos

 *

 * This file is part of GnuTLS.

 *

 * GnuTLS is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 3 of the License, or

 * (at your option) any later version.

 *

 * GnuTLS is distributed in the hope that it will be useful, but

 * WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with GnuTLS; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA

 */

/* Parts copied from GnuTLS example programs. */

#ifdef HAVE_CONFIG_H

#include <config.h>

#endif

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <sys/types.h>

#if !defined(_WIN32)

#include <netinet/in.h>

#include <sys/socket.h>

#include <sys/wait.h>

#include <arpa/inet.h>

#endif

#include <unistd.h>

#include <assert.h>

#include <gnutls/gnutls.h>

#include <gnutls/x509.h>

#include "utils.h"

#include "cert-common.h"

/* Test for gnutls_certificate_set_known_dh_params()

 *

 */

static void tls_log_func(int level, const char *str)

{

	fprintf(stderr, "<%d>| %s", level, str);

}

static int

pskfunc(gnutls_session_t session, const char *username,

	gnutls_datum_t * key)

{

	if (debug)

		printf("psk callback to get %s's password\n", username);

	key->data = gnutls_malloc(4);

	key->data[0] = 0xDE;

	key->data[1] = 0xAD;

	key->data[2] = 0xBE;

	key->data[3] = 0xEF;

	key->size = 4;

	return 0;

}

void doit(void)

{

	gnutls_psk_client_credentials_t clicred;

	gnutls_psk_server_credentials_t servcred;

	const gnutls_datum_t key = { (void *) "DEADBEEF", 8 };

	/* this must be called once in the program

	 */

	global_init();

	gnutls_global_set_log_function(tls_log_func);

	if (debug)

		gnutls_global_set_log_level(6);

	assert(gnutls_psk_allocate_client_credentials(&clicred) >= 0);

	assert(gnutls_psk_allocate_server_credentials(&servcred) >= 0);

	gnutls_psk_set_server_credentials_function(servcred, pskfunc);

	assert(gnutls_psk_set_client_credentials(clicred, "test", &key,

					  GNUTLS_PSK_KEY_HEX)>=0);

	assert(gnutls_psk_set_server_known_dh_params(servcred, GNUTLS_SEC_PARAM_LEGACY) >= 0);

	assert(test_cli_serv_psk(servcred, clicred, "NORMAL:-KX-ALL:+DHE-PSK") >= 0);

	assert(gnutls_psk_set_server_known_dh_params(servcred, GNUTLS_SEC_PARAM_NORMAL) >= 0);

	assert(test_cli_serv_psk(servcred, clicred, "NORMAL:-KX-ALL:+DHE-PSK") >= 0);

	assert(gnutls_psk_set_server_known_dh_params(servcred, GNUTLS_SEC_PARAM_HIGH) >= 0);

	assert(test_cli_serv_psk(servcred, clicred, "NORMAL:-KX-ALL:+DHE-PSK") >= 0);

	assert(gnutls_psk_set_server_known_dh_params(servcred, GNUTLS_SEC_PARAM_ULTRA) >= 0);

	assert(test_cli_serv_psk(servcred, clicred, "NORMAL:-KX-ALL:+DHE-PSK") >= 0);

	gnutls_psk_free_server_credentials(servcred);

	gnutls_psk_free_client_credentials(clicred);

	gnutls_global_deinit();

	if (debug)

		success("success");

}