/*

 * Copyright (C) 2016 Red Hat, Inc.

 *

 * 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

 */

#ifdef HAVE_CONFIG_H

#include <config.h>

#endif

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <errno.h>

#include <assert.h>

#include <gnutls/gnutls.h>

#include "utils.h"

#include "eagain-common.h"

#include "cert-common.h"

/* This tests whether the max-record extension is respected on TLS.

 */

const char *side;

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

{

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

}

static

void start(const char *prio)

{

	int ret;

	/* Server stuff. */

	gnutls_certificate_credentials_t serverx509cred;

	gnutls_session_t server;

	int sret = GNUTLS_E_AGAIN;

	/* Client stuff. */

	gnutls_certificate_credentials_t clientx509cred;

	gnutls_session_t client;

	int cret = GNUTLS_E_AGAIN;

	gnutls_datum_t v1, v2;

	char client_random[32];

	char server_random[32];

	global_init();

	success("trying %s\n", prio);

	memset(client_random, 1, sizeof(client_random));

	memset(server_random, 2, sizeof(server_random));

	/* General init. */

	gnutls_global_set_log_function(tls_log_func);

	if (debug)

		gnutls_global_set_log_level(6);

	/* Init server */

	gnutls_certificate_allocate_credentials(&serverx509cred);

	gnutls_certificate_set_x509_key_mem(serverx509cred,

					    &server2_cert, &server2_key,

					    GNUTLS_X509_FMT_PEM);

	gnutls_init(&server, GNUTLS_SERVER);

	gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE,

				serverx509cred);

	assert(gnutls_priority_set_direct(server, prio, NULL)>=0);

	gnutls_transport_set_push_function(server, server_push);

	gnutls_transport_set_pull_function(server, server_pull);

	gnutls_transport_set_pull_timeout_function(server,

						   server_pull_timeout_func);

	gnutls_transport_set_ptr(server, server);

	/* Init client */

	ret = gnutls_certificate_allocate_credentials(&clientx509cred);

	if (ret < 0)

		exit(1);

	ret = gnutls_certificate_set_x509_trust_mem(clientx509cred, &ca2_cert, GNUTLS_X509_FMT_PEM);

	if (ret < 0)

		exit(1);

	ret = gnutls_init(&client, GNUTLS_CLIENT);

	if (ret < 0)

		exit(1);

	ret = gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE,

				clientx509cred);

	if (ret < 0)

		exit(1);

	ret = gnutls_priority_set_direct(client, prio, NULL);

	if (ret < 0)

		exit(1);

	gnutls_transport_set_push_function(client, client_push);

	gnutls_transport_set_pull_function(client, client_pull);

	gnutls_transport_set_pull_timeout_function(client,

						   client_pull_timeout_func);

	gnutls_transport_set_ptr(client, client);

	v1.data = (void*)client_random;

	v1.size = sizeof(client_random);

	gnutls_handshake_set_random(client, &v1;;

	v1.data = (void*)server_random;

	v1.size = sizeof(server_random);

	gnutls_handshake_set_random(server, &v1;;

	memset(&v1, 0, sizeof(v1));

	memset(&v2, 0, sizeof(v2));

	HANDSHAKE(client, server);

	gnutls_session_get_random(client, &v1, &v2;;

	if (v1.size != 32 || memcmp(v1.data, client_random, 32) != 0) {

		fail("error in client's random view 1\n");

	}

	if (v2.size != 32 || memcmp(v2.data, server_random, 32) != 0) {

		fail("error in client's random view 2\n");

	}

	memset(&v1, 0, sizeof(v1));

	memset(&v2, 0, sizeof(v2));

	gnutls_session_get_random(server, &v1, &v2;;

	if (v1.size != 32 || memcmp(v1.data, client_random, 32) != 0) {

		fail("error in server's random view 1\n");

	}

	if (v2.size != 32 || memcmp(v2.data, server_random, 32) != 0) {

		fail("error in server's random view 2\n");

	}

	memset(&v1, 0, sizeof(v1));

	memset(&v2, 0, sizeof(v2));

	/* check master secret */

	gnutls_session_get_master_secret(server, &v1;;

	if (v1.size <= 0) {

		fail("error in server's master secret\n");

	}

	gnutls_session_get_master_secret(client, &v2;;

	if (v2.size <= 0) {

		fail("error in client's master secret\n");

	}

	if (v1.size != v2.size || memcmp(v1.data, v2.data, v1.size) != 0) {

		fail("master secret don't match!\n");

	}

	gnutls_bye(client, GNUTLS_SHUT_RDWR);

	gnutls_bye(server, GNUTLS_SHUT_RDWR);

	gnutls_deinit(client);

	gnutls_deinit(server);

	gnutls_certificate_free_credentials(serverx509cred);

	gnutls_certificate_free_credentials(clientx509cred);

	gnutls_global_deinit();

	reset_buffers();

}

void doit(void)

{

	start("NORMAL:-VERS-ALL:+VERS-TLS1.2");

	start("NORMAL:-VERS-ALL:+VERS-TLS1.3");

	start("NORMAL");

}