/*

 * Copyright (C) 2015 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 <gnutls/gnutls.h>

#include <gnutls/dtls.h>

#include <assert.h>

#include "utils.h"

#define SERVER_PUSH_ADD if (len > 512 + 5+8+32) fail("max record set to 512, len: %d\n", (int)len);

#include "eagain-common.h"

#include "cert-common.h"

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

 */

const char *side;

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

{

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

}

static

void run(const char *prio)

{

	global_init();

	int ret;

	char buf[1024];

	/* 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;

	/* 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_DATAGRAM | GNUTLS_NONBLOCK);

	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|GNUTLS_DATAGRAM | GNUTLS_NONBLOCK);

	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_record_set_max_size(client, 512);

	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);

	HANDSHAKE_DTLS(client, server);

	memset(buf, 1, sizeof(buf));

	ret = gnutls_record_send(server, buf, 513);

	if (ret != GNUTLS_E_LARGE_PACKET && ret < 0) {

		gnutls_perror(ret);

		exit(1);

	}

	success("did not send a 513-byte packet\n");

	ret = gnutls_record_send(server, buf, 512);

	if (ret < 0) {

		gnutls_perror(ret);

		exit(1);

	}

	success("did send a 512-byte packet\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();

}

void doit(void)

{

	run("NORMAL:-VERS-ALL:+VERS-DTLS1.2");

}