/*

 * 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 <unistd.h>

#include <assert.h>

#include <gnutls/gnutls.h>

#include <gnutls/x509.h>

#include <gnutls/x509-ext.h>

#include "utils.h"

/* Tests the certificate extension override in "trusted" PKCS#11 modules 

 * when used with gnutls_pkcs11_get_raw_issuer().

 */

#ifdef _WIN32

# define P11LIB "libpkcs11mock1.dll"

#else

# define P11LIB "libpkcs11mock1.so"

#endif

static time_t mytime(time_t * t)

{

	time_t then = 1424466893;

	if (t)

		*t = then;

	return then;

}

void doit(void)

{

	int ret;

	gnutls_x509_crt_t crt, ocrt;

	unsigned keyusage;

	const char *lib;

	gnutls_datum_t issuer = {NULL, 0};

	ret = global_init();

	if (ret != 0) {

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

		exit(1);

	}

	lib = getenv("P11MOCKLIB1");

	if (lib == NULL)

		lib = P11LIB;

	gnutls_global_set_time_function(mytime);

	if (debug) {

		gnutls_global_set_log_level(4711);

		success("loading lib %s\n", lib);

	}

	ret = gnutls_pkcs11_init(GNUTLS_PKCS11_FLAG_MANUAL, NULL);

	if (ret != 0) {

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

		exit(1);

	}

	ret = gnutls_pkcs11_add_provider(lib, "trusted");

	if (ret != 0) {

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

		exit(1);

	}

	assert(gnutls_x509_crt_init(&crt)>=0);

	assert(gnutls_x509_crt_init(&ocrt)>=0);

	/* check high level certificate functions */

	ret = gnutls_x509_crt_import_url(crt, "pkcs11:type=cert;object=cert1", 0);

	if (ret < 0) {

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

		exit(1);

	}

	ret = gnutls_pkcs11_get_raw_issuer("pkcs11:", crt, &issuer, GNUTLS_X509_FMT_DER, GNUTLS_PKCS11_OBJ_FLAG_OVERWRITE_TRUSTMOD_EXT);

	if (ret < 0) {

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

		exit(1);

	}

	ret = gnutls_x509_crt_equals2(crt, &issuer);

	if (ret != 0) {

	    fail("exported certificates are equal!\n");

	}

	ret = gnutls_x509_crt_import(ocrt, &issuer, GNUTLS_X509_FMT_DER);

	if (ret < 0) {

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

		exit(1);

	}

	ret = gnutls_x509_crt_get_ca_status(ocrt, NULL);

	if (ret < 0) {

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

		exit(1);

	}

	if (ret == 0) {

		fail("overridden cert is not a CA!\n");

		exit(1);

	}

	ret = gnutls_x509_crt_get_key_usage(ocrt, &keyusage, NULL);

	if (ret < 0) {

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

		exit(1);

	}

	if (keyusage != (GNUTLS_KEY_KEY_ENCIPHERMENT|GNUTLS_KEY_ENCIPHER_ONLY|GNUTLS_KEY_KEY_CERT_SIGN)) {

		fail("Extension does not have the expected key usage!\n");

	}

	gnutls_x509_crt_deinit(crt);

	gnutls_x509_crt_deinit(ocrt);

	gnutls_free(issuer.data);

	if (debug)

		printf("done\n\n\n");

	gnutls_global_deinit();

}