/*

 * 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 <assert.h>

#include <gnutls/gnutls.h>

#include "eagain-common.h"

#include "cert-common.h"

#include "utils.h"

const char *side = "";

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

{

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

}

/* This tests gnutls_record_set_timeout() operation

 */

#define MAX_BUF 16384

static char b1[MAX_BUF + 1];

static char buffer[MAX_BUF + 1];

static unsigned int expected_val = -1;

static unsigned int called = 1;

static int pull_timeout_func(gnutls_transport_ptr_t ptr, unsigned int ms)

{

	called = 1;

	if (ms == 0 && expected_val != 0) {

		fail("Expected timeout value: %u, got %u\n", expected_val, ms);

		exit(1);

	} else if (ms != expected_val && ms == GNUTLS_INDEFINITE_TIMEOUT) {

		fail("Expected timeout value: %u, got %u\n", expected_val, ms);

		exit(1);

	}

	return 1;

}

#define MAX_VALS 4

static const int vals[MAX_VALS] = {0, 1000, 5000, GNUTLS_INDEFINITE_TIMEOUT};

static void start(const char *prio)

{

	/* 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, i;

	/* Need to enable anonymous KX specifically. */

	int transferred = 0;

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

	/* General init. */

	global_init();

	gnutls_global_set_log_function(tls_log_func);

	if (debug)

		gnutls_global_set_log_level(4711);

	/* Init server */

	gnutls_certificate_allocate_credentials(&serverx509cred);

	gnutls_certificate_set_x509_key_mem(serverx509cred,

					    &server_cert, &server_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_ptr(server, server);

	/* Init client */

	assert(gnutls_certificate_allocate_credentials(&clientx509cred)>=0);

	gnutls_init(&client, GNUTLS_CLIENT);

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

	assert(gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE,

				      clientx509cred)>=0);

	gnutls_transport_set_push_function(client, client_push);

	gnutls_transport_set_pull_function(client, client_pull);

	gnutls_transport_set_pull_timeout_function(client, pull_timeout_func);

	gnutls_transport_set_ptr(client, client);

	memset(b1, 0, sizeof(b1));

	HANDSHAKE(client, server);

	if (debug)

		success("Handshake established\n");

	memset(b1, 1, MAX_BUF);

	/* Try sending various other sizes */

	for (i = 1; i < 128; i++) {

		called = 0;

		gnutls_record_set_timeout(client, vals[i%MAX_VALS]);

		expected_val = vals[i%MAX_VALS];

		TRANSFER(client, server, b1, i, buffer, MAX_BUF);

		if (called == 0 && expected_val != 0) {

			fail("pull timeout callback was not called for %d!\n", vals[i%MAX_VALS]);

			exit(1);

		} else if (called != 0 && expected_val == 0) {

			fail("pull timeout callback was called for %d!\n", vals[i%MAX_VALS]);

			exit(1);

		}

	}

	if (debug)

		fputs("\n", stdout);

	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");

}