/*

 * 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

 */

/* 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 <time.h>

#include <gnutls/gnutls.h>

#include <gnutls/abstract.h>

#include <gnutls/x509.h>

#include "cert-common.h"

#include "utils.h"

/* Test for gnutls_certificate_set_key()

 *

 */

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

{

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

}

static time_t mytime(time_t * t)

{

	time_t then = 1473673819;

	if (t)

		*t = then;

	return then;

}

static unsigned import_key(gnutls_certificate_credentials_t xcred, const gnutls_datum_t *skey, const gnutls_datum_t *cert)

{

	gnutls_pcert_st pcert_list[16];

	gnutls_privkey_t key;

	unsigned pcert_list_size, idx, i;

	gnutls_datum_t tcert;

	const char *names[] = {"localhost", "localhost2"};

	int ret;

	assert(gnutls_privkey_init(&key)>=0);

	pcert_list_size = sizeof(pcert_list)/sizeof(pcert_list[0]);

	ret = gnutls_pcert_list_import_x509_raw(pcert_list, &pcert_list_size,

		cert, GNUTLS_X509_FMT_PEM, 0);

	if (ret < 0) {

		fail("error in gnutls_pcert_list_import_x509_raw: %s\n", gnutls_strerror(ret));

	}

	ret = gnutls_privkey_import_x509_raw(key, skey, GNUTLS_X509_FMT_PEM, NULL, 0);

	if (ret < 0) {

		fail("error in key import: %s\n", gnutls_strerror(ret));

	}

	ret = gnutls_certificate_set_key(xcred, names, 2, pcert_list,

				pcert_list_size, key);

	if (ret < 0) {

		fail("error in gnutls_certificate_set_key: %s\n", gnutls_strerror(ret));

		exit(1);

	}

	/* return index */

	idx = ret;

	/* verify whether the stored certificate match the ones we have */

	for (i=0;i

		ret = gnutls_certificate_get_crt_raw(xcred, idx, i, &tcert);

		if (ret < 0) {

			fail("error in %d: cert: %d: %s\n", __LINE__, i, gnutls_strerror(ret));

			exit(1);

		}

		if (tcert.size != pcert_list[i].cert.size || memcmp(tcert.data, pcert_list[i].cert.data, tcert.size) != 0) {

			fail("error in %d: cert %d: %s\n", __LINE__, i, "ca cert don't match");

			exit(1);

		}

	}

	return idx;

}

static void basic(void)

{

	gnutls_certificate_credentials_t x509_cred;

	gnutls_certificate_credentials_t clicred;

	int ret;

	unsigned idx, i;

	/* this must be called once in the program

	 */

	global_init();

	gnutls_global_set_time_function(mytime);

	gnutls_global_set_log_function(tls_log_func);

	if (debug)

		gnutls_global_set_log_level(6);

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

	assert(gnutls_certificate_allocate_credentials(&x509_cred)>=0);

	gnutls_certificate_set_flags(x509_cred, GNUTLS_CERTIFICATE_API_V2);

	ret = gnutls_certificate_set_x509_trust_mem(clicred, &ca_cert, GNUTLS_X509_FMT_PEM);

	if (ret < 0)

		fail("set_x509_trust_file failed: %s\n", gnutls_strerror(ret));

	idx = import_key(x509_cred, &server_key, &server_cert);

	assert(idx == 0);

	test_cli_serv(x509_cred, clicred, "NORMAL", "localhost", NULL, NULL, NULL);

	/* verify that we can add certs, and that their index will change */

	for (i=0;i<16;i++) {

		idx = import_key(x509_cred, &server_ecc_key, &server_ecc_cert);

		assert(idx == 1+i);

	}

	gnutls_certificate_free_credentials(x509_cred);

	gnutls_certificate_free_credentials(clicred);

	gnutls_global_deinit();

	if (debug)

		success("success");

}

static void failure_mode(void)

{

	gnutls_certificate_credentials_t x509_cred;

	gnutls_pcert_st pcert_list[16];

	gnutls_privkey_t key;

	unsigned pcert_list_size;

	const char *names[] = {"localhost", "localhost2"};

	int ret;

	unsigned i;

	/* 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_certificate_allocate_credentials(&x509_cred)>=0);

	assert(gnutls_privkey_init(&key)>=0);

	pcert_list_size = sizeof(pcert_list)/sizeof(pcert_list[0]);

	ret = gnutls_pcert_list_import_x509_raw(pcert_list, &pcert_list_size,

		&server_cert, GNUTLS_X509_FMT_PEM, 0);

	if (ret < 0) {

		fail("error in gnutls_pcert_list_import_x509_raw: %s\n", gnutls_strerror(ret));

	}

	ret = gnutls_privkey_import_x509_raw(key, &server_ecc_key, GNUTLS_X509_FMT_PEM, NULL, 0);

	if (ret < 0) {

		fail("error in key import: %s\n", gnutls_strerror(ret));

	}

	ret = gnutls_certificate_set_key(x509_cred, names, 2, pcert_list,

				pcert_list_size, key);

	if (ret < 0) {

		success("expected error in gnutls_certificate_set_key: %s\n", gnutls_strerror(ret));

		goto cleanup;

	}

	fail("gnutls_certificate_set_key succeeded unexpectedly\n");

 cleanup:

	for (i=0;i

		gnutls_pcert_deinit(&pcert_list[i]);

	}

	gnutls_privkey_deinit(key);

	gnutls_certificate_free_credentials(x509_cred);

	gnutls_global_deinit();

	if (debug)

		success("success");

}

static void auto_parse(void)

{

	gnutls_certificate_credentials_t x509_cred, clicred;

	gnutls_pcert_st pcert_list[16];

	gnutls_privkey_t key;

	gnutls_pcert_st second_pcert[2];

	gnutls_privkey_t second_key;

	unsigned pcert_list_size;

	int ret;

	/* this must be called once in the program

	 */

	global_init();

	gnutls_global_set_time_function(mytime);

	gnutls_global_set_log_function(tls_log_func);

	if (debug)

		gnutls_global_set_log_level(6);

	assert(gnutls_certificate_allocate_credentials(&x509_cred)>=0);

	assert(gnutls_privkey_init(&key)>=0);

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

	ret = gnutls_certificate_set_x509_trust_mem(clicred, &ca3_cert, GNUTLS_X509_FMT_PEM);

	if (ret < 0)

		fail("set_x509_trust_file failed: %s\n", gnutls_strerror(ret));

	pcert_list_size = sizeof(pcert_list)/sizeof(pcert_list[0]);

	ret = gnutls_pcert_list_import_x509_raw(pcert_list, &pcert_list_size,

		&server_ca3_localhost_cert_chain, GNUTLS_X509_FMT_PEM, 0);

	if (ret < 0) {

		fail("error in gnutls_pcert_list_import_x509_raw: %s\n", gnutls_strerror(ret));

	}

	ret = gnutls_privkey_import_x509_raw(key, &server_ca3_key, GNUTLS_X509_FMT_PEM, NULL, 0);

	if (ret < 0) {

		fail("error in key import: %s\n", gnutls_strerror(ret));

	}

	ret = gnutls_certificate_set_key(x509_cred, NULL, 0, pcert_list,

				pcert_list_size, key);

	if (ret < 0) {

		fail("error in gnutls_certificate_set_key: %s\n", gnutls_strerror(ret));

		exit(1);

	}

	/* set the ECC key */

	assert(gnutls_privkey_init(&second_key)>=0);

	pcert_list_size = 2;

	ret = gnutls_pcert_list_import_x509_raw(second_pcert, &pcert_list_size,

		&server_ca3_localhost6_cert_chain, GNUTLS_X509_FMT_PEM, 0);

	if (ret < 0) {

		fail("error in gnutls_pcert_list_import_x509_raw: %s\n", gnutls_strerror(ret));

	}

	ret = gnutls_privkey_import_x509_raw(second_key, &server_ca3_key, GNUTLS_X509_FMT_PEM, NULL, 0);

	if (ret < 0) {

		fail("error in key import: %s\n", gnutls_strerror(ret));

	}

	ret = gnutls_certificate_set_key(x509_cred, NULL, 0, second_pcert,

				2, second_key);

	if (ret < 0) {

		fail("error in gnutls_certificate_set_key: %s\n", gnutls_strerror(ret));

		exit(1);

	}

	test_cli_serv(x509_cred, clicred, "NORMAL", "localhost", NULL, NULL, NULL); /* the DNS name of the first cert */

	test_cli_serv(x509_cred, clicred, "NORMAL", "localhost6", NULL, NULL, NULL); /* the DNS name of ECC cert */

	test_cli_serv(x509_cred, clicred, "NORMAL", "www.none.org", NULL, NULL, NULL); /* the DNS name of ECC cert */

	gnutls_certificate_free_credentials(x509_cred);

	gnutls_certificate_free_credentials(clicred);

	gnutls_global_deinit();

	if (debug)

		success("success");

}

void doit(void)

{

	basic();

	failure_mode();

	auto_parse();

}