/*

 * Copyright (C) 2004-2012 Free Software Foundation, Inc.

 * Copyright (C) 2013 Adam Sampson <ats@offog.org>

 *

 * Author: Simon Josefsson

 *

 * 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 <stdbool.h>

#include <stdio.h>

#include <stdlib.h>

#if defined(_WIN32)

/* socketpair isn't supported on Win32. */

int main(int argc, char **argv)

{

	exit(77);

}

#else

#include <string.h>

#include <sys/types.h>

#include <sys/socket.h>

#if !defined(_WIN32)

#include <sys/wait.h>

#endif

#include <unistd.h>

#include <signal.h>

#include <assert.h>

#include <gnutls/gnutls.h>

#include "utils.h"

static char hexchar(unsigned int val)

{

	if (val < 10)

		return '0' + val;

	if (val < 16)

		return 'a' + val - 10;

	abort();

}

static bool hex_encode(const void *buf, size_t bufsize, char *dest, size_t destsize)

{

	size_t used = 0;

	if (destsize < 1)

		return false;

	while (used < bufsize) {

		unsigned int c = ((const unsigned char *)buf)[used];

		if (destsize < 3)

			return false;

		*(dest++) = hexchar(c >> 4);

		*(dest++) = hexchar(c & 0xF);

		used++;

		destsize -= 2;

	}

	*dest = '\0';

	return used + 1;

}

/* A very basic TLS client, with PSK authentication.

 */

const char *side = "";

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

{

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

}

#define MAX_BUF 1024

#define MSG "Hello TLS"

static void client(int sd, const char *prio, const gnutls_datum_t *user, const gnutls_datum_t *key,

		   unsigned expect_hint, int expect_fail, int exp_kx, unsigned binary_user)

{

	int ret, ii, kx;

	gnutls_session_t session;

	char buffer[MAX_BUF + 1];

	gnutls_psk_client_credentials_t pskcred;

	const char *hint;

	global_init();

	gnutls_global_set_log_function(tls_log_func);

	if (debug)

		gnutls_global_set_log_level(4711);

	side = "client";

	gnutls_psk_allocate_client_credentials(&pskcred);

	if (binary_user) {

		gnutls_psk_set_client_credentials2(pskcred, user, key, GNUTLS_PSK_KEY_HEX);

	} else {

		gnutls_psk_set_client_credentials(pskcred, (const char *) user->data, key,

						  GNUTLS_PSK_KEY_HEX);

	}

	assert(gnutls_init(&session, GNUTLS_CLIENT|GNUTLS_KEY_SHARE_TOP)>=0);

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

	/* put the anonymous credentials to the current session

	 */

	gnutls_credentials_set(session, GNUTLS_CRD_PSK, pskcred);

	gnutls_transport_set_int(session, sd);

	/* Perform the TLS handshake

	 */

	ret = gnutls_handshake(session);

	if (ret < 0) {

		if (!expect_fail)

			fail("client: Handshake failed\n");

		if (ret != expect_fail) {

			fail("expected cli error %d (%s), got %d (%s)\n", expect_fail, gnutls_strerror(expect_fail),

								      ret, gnutls_strerror(ret));

		}

		goto end;

	} else {

		if (debug)

			success("client: Handshake was completed\n");

	}

	/* check the hint */

	if (expect_hint) {

		hint = gnutls_psk_client_get_hint(session);

		if (hint == NULL || strcmp(hint, "hint") != 0) {

			fail("client: hint is not the expected: %s\n", gnutls_psk_client_get_hint(session));

			goto end;

		}

	}

	gnutls_record_send(session, MSG, strlen(MSG));

	ret = gnutls_record_recv(session, buffer, MAX_BUF);

	if (ret == 0) {

		if (debug)

			success

			    ("client: Peer has closed the TLS connection\n");

		goto end;

	} else if (ret < 0) {

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

		goto end;

	}

	kx = gnutls_kx_get(session);

	if (debug) {

		printf("- Received %d bytes: ", ret);

		for (ii = 0; ii < ret; ii++) {

			fputc(buffer[ii], stdout);

		}

		fputs("\n", stdout);

	}

	gnutls_bye(session, GNUTLS_SHUT_RDWR);

	if (expect_fail)

		fail("client: expected failure but connection succeeded!\n");

	if (exp_kx && kx != exp_kx) {

		fail("client: expected key exchange %s, but got %s\n",

		     gnutls_kx_get_name(exp_kx),

		     gnutls_kx_get_name(kx));

	}

      end:

	close(sd);

	gnutls_deinit(session);

	gnutls_psk_free_client_credentials(pskcred);

	gnutls_global_deinit();

}

/* This is a sample TLS 1.0 echo server, for PSK authentication.

 */

#define MAX_BUF 1024

static void server(int sd, const char *prio, const gnutls_datum_t *user, bool no_cred,

		   int expect_fail, int exp_kx, unsigned binary_user)

{

	gnutls_psk_server_credentials_t server_pskcred;

	int ret, kx;

	gnutls_session_t session;

	const char *pskid;

	gnutls_datum_t pskid_binary;

	char buffer[MAX_BUF + 1];

	char *psk_file = getenv("PSK_FILE");

	char *desc;

	/* 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(4711);

	side = "server";

	if (psk_file == NULL)

		psk_file = (char*)"psk.passwd";

	gnutls_psk_allocate_server_credentials(&server_pskcred);

	gnutls_psk_set_server_credentials_hint(server_pskcred, "hint");

	ret = gnutls_psk_set_server_credentials_file(server_pskcred, psk_file);

	if (ret < 0) {

		fail("server: gnutls_psk_set_server_credentials_file failed (%s)\n\n",

		     gnutls_strerror(ret));

		return;

	}

	gnutls_init(&session, GNUTLS_SERVER);

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

	if (!no_cred)

		gnutls_credentials_set(session, GNUTLS_CRD_PSK, server_pskcred);

	gnutls_transport_set_int(session, sd);

	ret = gnutls_handshake(session);

	if (ret < 0) {

		unsigned char seq[8], buf[16];

		gnutls_alert_send_appropriate(session, ret);

		/* We have to make sure that we do not close connection till

		 * test client reads our fatal alert, otherwise it might exit

		 * with GNUTLS_E_PUSH_ERROR instead */

		gnutls_session_force_valid(session);

		while ((gnutls_record_recv_seq(session, buf, sizeof(buf), seq)) >= 0)

			;

		if (expect_fail) {

			if (ret != expect_fail) {

				fail("expected error %d (%s), got %d (%s)\n", expect_fail,

									      gnutls_strerror(expect_fail),

									      ret, gnutls_strerror(ret));

			}

			if (debug)

				success("server: Handshake has failed - expected (%s)\n\n",

				     gnutls_strerror(ret));

		} else {

			fail("server: Handshake has failed (%s)\n\n",

			     gnutls_strerror(ret));

		}

		goto end;

	}

	if (debug)

		success("server: Handshake was completed\n");

	/* see the Getting peer's information example */

	/* print_info(session); */

	for (;;) {

		memset(buffer, 0, MAX_BUF + 1);

		gnutls_record_set_timeout(session, 10000);

		ret = gnutls_record_recv(session, buffer, MAX_BUF);

		if (ret == 0) {

			if (debug)

				success

				    ("server: Peer has closed the GnuTLS connection\n");

			break;

		} else if (ret < 0) {

			fail("server: Received corrupted data(%d). Closing...\n", ret);

			break;

		} else if (ret > 0) {

			/* echo data back to the client

			 */

			gnutls_record_send(session, buffer,

					   strlen(buffer));

		}

	}

	kx = gnutls_kx_get(session);

	desc = gnutls_session_get_desc(session);

	success("  - connected with: %s\n", desc);

	gnutls_free(desc);

	/* do not wait for the peer to close the connection.

	 */

	gnutls_bye(session, GNUTLS_SHUT_WR);

	if (expect_fail)

		fail("server: expected failure but connection succeeded!\n");

	if (!no_cred) {

		if (binary_user) {

			char pskid_bin[1024], userdata_bin[1024];

			if (gnutls_psk_server_get_username2(session, &pskid_binary))

				fail("server: Could not get binary pskid\n");

			if (memcmp(pskid_binary.data, user->data, user->size) != 0) {

				hex_encode(user->data, user->size, userdata_bin, sizeof(userdata_bin));

				hex_encode(pskid_binary.data, pskid_binary.size, pskid_bin, sizeof(pskid_bin));

				fail("server: binary username (%s) does not match expected (%s)\n",

						pskid_bin, userdata_bin);

			}

		} else {

			pskid = gnutls_psk_server_get_username(session);

			if (pskid == NULL || strcmp(pskid, (const char *) user->data) != 0) {

				fail("server: username (%s), does not match expected (%s)\n",

				     pskid, (const char *) user->data);

			}

		}

	}

	if (exp_kx && kx != exp_kx) {

		fail("server: expected key exchange %s, but got %s\n",

		     gnutls_kx_get_name(exp_kx),

		     gnutls_kx_get_name(kx));

	}

 end:

	close(sd);

	gnutls_deinit(session);

	gnutls_psk_free_server_credentials(server_pskcred);

	gnutls_global_deinit();

	if (debug)

		success("server: finished\n");

}

static void print_user(const char *caption, const char *prio, const gnutls_datum_t *user, unsigned binary_user)

{

	char hexuser[100];

	if (binary_user) {

		hex_encode(user->data, user->size, hexuser, sizeof(hexuser));

		success("%s %s (user:%s)\n", caption, prio, hexuser);

	} else

		success("%s %s (user:%s)\n", caption, prio, (const char *) user->data);

}

static

void run_test3(const char *prio, const char *sprio, const gnutls_datum_t *user, const gnutls_datum_t *key, bool no_cred,

	      unsigned expect_hint, int exp_kx, int expect_fail_cli, int expect_fail_serv, unsigned binary_user)

{

	pid_t child;

	int err;

	int sockets[2];

	signal(SIGPIPE, SIG_IGN);

	if (expect_fail_serv || expect_fail_cli)

		print_user("ntest", prio, user, binary_user);

	else

		print_user("test", prio, user, binary_user);

	err = socketpair(AF_UNIX, SOCK_STREAM, 0, sockets);

	if (err == -1) {

		perror("socketpair");

		fail("socketpair failed\n");

		return;

	}

	child = fork();

	if (child < 0) {

		perror("fork");

		fail("fork");

		return;

	}

	if (child) {

		close(sockets[1]);

		int status;

		/* parent */

		server(sockets[0], sprio?sprio:prio, user, no_cred, expect_fail_serv, exp_kx, binary_user);

		wait(&status);

		check_wait_status(status);

	} else {

		close(sockets[0]);

		client(sockets[1], prio, user, key, expect_hint, expect_fail_cli, exp_kx, binary_user);

		exit(0);

	}

}

static

void run_test2(const char *prio, const char *sprio, const gnutls_datum_t *user, const gnutls_datum_t *key,

	      unsigned expect_hint, int exp_kx, int expect_fail_cli, int expect_fail_serv, unsigned binary_user)

{

	run_test3(prio, sprio, user, key, 0, expect_hint, exp_kx, expect_fail_cli, expect_fail_serv, binary_user);

}

static

void run_test_ok(const char *prio, const gnutls_datum_t *user, const gnutls_datum_t *key, unsigned expect_hint, int expect_fail, unsigned binary_user)

{

	run_test2(prio, NULL, user, key, expect_hint, GNUTLS_KX_PSK, expect_fail, expect_fail, binary_user);

}

static

void run_ectest_ok(const char *prio, const gnutls_datum_t *user, const gnutls_datum_t *key, unsigned expect_hint, int expect_fail, unsigned binary_user)

{

	run_test2(prio, NULL, user, key, expect_hint, GNUTLS_KX_ECDHE_PSK, expect_fail, expect_fail, binary_user);

}

static

void run_dhtest_ok(const char *prio, const gnutls_datum_t *user, const gnutls_datum_t *key, unsigned expect_hint, int expect_fail, unsigned binary_user)

{

	run_test2(prio, NULL, user, key, expect_hint, GNUTLS_KX_DHE_PSK, expect_fail, expect_fail, binary_user);

}

void doit(void)

{

	char hexuser[] = { 0xde, 0xad, 0xbe, 0xef },

			nulluser1[] = { 0 },

			nulluser2[] = { 0, 0, 0xaa, 0 };

	const gnutls_datum_t user_jas = { (void *) "jas", strlen("jas") };

	const gnutls_datum_t user_unknown = { (void *) "unknown", strlen("unknown") };

	const gnutls_datum_t user_nonhex = { (void *) "non-hex", strlen("non-hex") };

	const gnutls_datum_t user_hex = { (void *) hexuser, sizeof(hexuser) };

	const gnutls_datum_t user_null_1 = { (void *) nulluser1, sizeof(nulluser1) };

	const gnutls_datum_t user_null_2 = { (void *) nulluser2, sizeof(nulluser2) };

	const gnutls_datum_t key = { (void *) "9e32cf7786321a828ef7668f09fb35db", 32 };

	const gnutls_datum_t wrong_key = { (void *) "9e31cf7786321a828ef7668f09fb35db", 32 };

	run_test_ok("NORMAL:-VERS-ALL:+VERS-TLS1.2:-KX-ALL:+PSK", &user_jas, &key, 1, 0, 0);

	run_test_ok("NORMAL:-VERS-ALL:+VERS-TLS1.2:-KX-ALL:+PSK", &user_hex, &key, 1, 0, 1);

	run_test_ok("NORMAL:-VERS-ALL:+VERS-TLS1.2:-KX-ALL:+PSK", &user_null_1, &key, 1, 0, 1);

	run_test_ok("NORMAL:-VERS-ALL:+VERS-TLS1.2:-KX-ALL:+PSK", &user_null_2, &key, 1, 0, 1);

	run_dhtest_ok("NORMAL:-VERS-ALL:+VERS-TLS1.2:-KX-ALL:+DHE-PSK", &user_jas, &key, 1, 0, 0);

	run_dhtest_ok("NORMAL:-VERS-ALL:+VERS-TLS1.2:-KX-ALL:+DHE-PSK", &user_hex, &key, 1, 0, 1);

	run_dhtest_ok("NORMAL:-VERS-ALL:+VERS-TLS1.2:-KX-ALL:+DHE-PSK", &user_null_1, &key, 1, 0, 1);

	run_dhtest_ok("NORMAL:-VERS-ALL:+VERS-TLS1.2:-KX-ALL:+DHE-PSK", &user_null_2, &key, 1, 0, 1);

	run_ectest_ok("NORMAL:-VERS-ALL:+VERS-TLS1.2:-KX-ALL:+ECDHE-PSK", &user_jas, &key, 1, 0, 0);

	run_ectest_ok("NORMAL:-VERS-ALL:+VERS-TLS1.2:-KX-ALL:+ECDHE-PSK", &user_hex, &key, 1, 0, 1);

	run_ectest_ok("NORMAL:-VERS-ALL:+VERS-TLS1.2:-KX-ALL:+ECDHE-PSK", &user_null_1, &key, 1, 0, 1);

	run_ectest_ok("NORMAL:-VERS-ALL:+VERS-TLS1.2:-KX-ALL:+ECDHE-PSK", &user_null_2, &key, 1, 0, 1);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.2:-KX-ALL:+PSK", NULL, &user_unknown, &key, 1, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_DECRYPTION_FAILED, 0);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.2:-KX-ALL:+PSK", NULL, &user_jas, &wrong_key, 1, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_DECRYPTION_FAILED, 0);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.2:-KX-ALL:+PSK", NULL, &user_nonhex, &key, 1, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_KEYFILE_ERROR, 0);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.2:-KX-ALL:+PSK", NULL, &user_hex, &wrong_key, 1, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_DECRYPTION_FAILED, 1);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.2:-KX-ALL:+PSK", NULL, &user_null_1, &wrong_key, 1, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_DECRYPTION_FAILED, 1);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.2:-KX-ALL:+PSK", NULL, &user_null_2, &wrong_key, 1, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_DECRYPTION_FAILED, 1);

	run_test_ok("NORMAL:-VERS-ALL:+VERS-TLS1.2:-KX-ALL:+PSK", &user_jas, &key, 1, 0, 0);

	run_test_ok("NORMAL:-KX-ALL:+PSK", &user_jas, &key, 0, 0, 0);

	run_test_ok("NORMAL:-KX-ALL:+PSK", &user_hex, &key, 0, 0, 1);

	run_test_ok("NORMAL:-KX-ALL:+PSK", &user_null_1, &key, 0, 0, 1);

	run_test_ok("NORMAL:-KX-ALL:+PSK", &user_null_2, &key, 0, 0, 1);

	run_test2("NORMAL:+PSK", NULL, &user_unknown, &key, 1, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_RECEIVED_ILLEGAL_PARAMETER, 0);

	run_test2("NORMAL:+PSK", NULL, &user_jas, &wrong_key, 1, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_RECEIVED_ILLEGAL_PARAMETER, 0);

	run_test2("NORMAL:+PSK", NULL, &user_hex, &wrong_key, 1, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_RECEIVED_ILLEGAL_PARAMETER, 1);

	run_test2("NORMAL:+PSK", NULL, &user_null_1, &wrong_key, 1, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_RECEIVED_ILLEGAL_PARAMETER, 1);

	run_test2("NORMAL:+PSK", NULL, &user_null_2, &wrong_key, 1, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_RECEIVED_ILLEGAL_PARAMETER, 1);

	run_test2("NORMAL:-KX-ALL:+PSK", NULL, &user_nonhex, &key, 1, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_KEYFILE_ERROR, 0);

	run_dhtest_ok("NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:-GROUP-EC-ALL", &user_jas, &key, 0, 0, 0);

	run_dhtest_ok("NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:-GROUP-EC-ALL", &user_hex, &key, 0, 0, 1);

	run_dhtest_ok("NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:-GROUP-EC-ALL", &user_null_1, &key, 0, 0, 1);

	run_dhtest_ok("NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:-GROUP-EC-ALL", &user_null_2, &key, 0, 0, 1);

	run_test_ok("NORMAL:-VERS-ALL:+VERS-TLS1.3:+PSK", &user_jas, &key, 0, 0, 0);

	run_test_ok("NORMAL:-VERS-ALL:+VERS-TLS1.3:+PSK", &user_hex, &key, 0, 0, 1);

	run_test_ok("NORMAL:-VERS-ALL:+VERS-TLS1.3:+PSK", &user_null_1, &key, 0, 0, 1);

	run_test_ok("NORMAL:-VERS-ALL:+VERS-TLS1.3:+PSK", &user_null_2, &key, 0, 0, 1);

	/* test priorities of DHE-PSK and PSK */

	run_ectest_ok("NORMAL:-VERS-ALL:+VERS-TLS1.3:-CIPHER-ALL:+AES-128-GCM:+DHE-PSK:+PSK:-GROUP-DH-ALL", &user_jas, &key, 0, 0, 0);

	run_ectest_ok("NORMAL:-VERS-ALL:+VERS-TLS1.3:-CIPHER-ALL:+AES-128-GCM:+DHE-PSK:+PSK:-GROUP-DH-ALL", &user_hex, &key, 0, 0, 1);

	run_ectest_ok("NORMAL:-VERS-ALL:+VERS-TLS1.3:-CIPHER-ALL:+AES-128-GCM:+DHE-PSK:+PSK:-GROUP-DH-ALL", &user_null_1, &key, 0, 0, 1);

	run_ectest_ok("NORMAL:-VERS-ALL:+VERS-TLS1.3:-CIPHER-ALL:+AES-128-GCM:+DHE-PSK:+PSK:-GROUP-DH-ALL", &user_null_2, &key, 0, 0, 1);

	run_test_ok("NORMAL:-VERS-ALL:+VERS-TLS1.3:-CIPHER-ALL:+AES-128-GCM:+PSK:+DHE-PSK:-GROUP-DH-ALL", &user_jas, &key, 0, 0, 0);

	run_test_ok("NORMAL:-VERS-ALL:+VERS-TLS1.3:-CIPHER-ALL:+AES-128-GCM:+PSK:+DHE-PSK:-GROUP-DH-ALL", &user_hex, &key, 0, 0, 1);

	run_test_ok("NORMAL:-VERS-ALL:+VERS-TLS1.3:-CIPHER-ALL:+AES-128-GCM:+PSK:+DHE-PSK:-GROUP-DH-ALL", &user_null_1, &key, 0, 0, 1);

	run_test_ok("NORMAL:-VERS-ALL:+VERS-TLS1.3:-CIPHER-ALL:+AES-128-GCM:+PSK:+DHE-PSK:-GROUP-DH-ALL", &user_null_2, &key, 0, 0, 1);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.3:-CIPHER-ALL:+AES-128-GCM:+DHE-PSK:+PSK:-GROUP-DH-ALL", 

		  "NORMAL:-VERS-ALL:+VERS-TLS1.3:-CIPHER-ALL:+AES-128-GCM:+PSK:+DHE-PSK:%SERVER_PRECEDENCE:-GROUP-DH-ALL",

		  &user_jas, &key, 0, GNUTLS_KX_PSK, 0, 0, 0);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.3:-CIPHER-ALL:+AES-128-GCM:+DHE-PSK:+PSK:-GROUP-DH-ALL",

		  "NORMAL:-VERS-ALL:+VERS-TLS1.3:-CIPHER-ALL:+AES-128-GCM:+PSK:+DHE-PSK:%SERVER_PRECEDENCE:-GROUP-DH-ALL",

		  &user_hex, &key, 0, GNUTLS_KX_PSK, 0, 0, 1);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.3:-CIPHER-ALL:+AES-128-GCM:+DHE-PSK:+PSK:-GROUP-DH-ALL",

		  "NORMAL:-VERS-ALL:+VERS-TLS1.3:-CIPHER-ALL:+AES-128-GCM:+PSK:+DHE-PSK:%SERVER_PRECEDENCE:-GROUP-DH-ALL",

		  &user_null_1, &key, 0, GNUTLS_KX_PSK, 0, 0, 1);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.3:-CIPHER-ALL:+AES-128-GCM:+DHE-PSK:+PSK:-GROUP-DH-ALL",

		  "NORMAL:-VERS-ALL:+VERS-TLS1.3:-CIPHER-ALL:+AES-128-GCM:+PSK:+DHE-PSK:%SERVER_PRECEDENCE:-GROUP-DH-ALL",

		  &user_null_2, &key, 0, GNUTLS_KX_PSK, 0, 0, 1);

	/* try with PRF that doesn't match binder (SHA256) */

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.3:-CIPHER-ALL:+AES-256-GCM:+PSK:+DHE-PSK", NULL, &user_jas, &key, 0, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_NO_CIPHER_SUITES, 0);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.3:-CIPHER-ALL:+AES-256-GCM:+PSK:+DHE-PSK", NULL, &user_hex, &key, 0, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_NO_CIPHER_SUITES, 1);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.3:-CIPHER-ALL:+AES-256-GCM:+PSK:+DHE-PSK", NULL, &user_null_1, &key, 0, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_NO_CIPHER_SUITES, 1);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.3:-CIPHER-ALL:+AES-256-GCM:+PSK:+DHE-PSK", NULL, &user_null_2, &key, 0, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_NO_CIPHER_SUITES, 1);

	/* try with no groups and PSK */

	run_test_ok("NORMAL:-VERS-ALL:+VERS-TLS1.3:+PSK:-GROUP-ALL", &user_jas, &key, 0, 0, 0);

	run_test_ok("NORMAL:-VERS-ALL:+VERS-TLS1.3:+PSK:-GROUP-ALL", &user_hex, &key, 0, 0, 1);

	run_test_ok("NORMAL:-VERS-ALL:+VERS-TLS1.3:+PSK:-GROUP-ALL", &user_null_1, &key, 0, 0, 1);

	run_test_ok("NORMAL:-VERS-ALL:+VERS-TLS1.3:+PSK:-GROUP-ALL", &user_null_2, &key, 0, 0, 1);

	/* try without any groups but DHE-PSK */

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:-GROUP-ALL", "NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:+PSK", &user_jas, &key, 0, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_NO_COMMON_KEY_SHARE, 0);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:-GROUP-ALL", "NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:+PSK:-GROUP-ALL", &user_jas, &key, 0, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_NO_COMMON_KEY_SHARE, 0);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:-GROUP-ALL", "NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:+PSK", &user_hex, &key, 0, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_NO_COMMON_KEY_SHARE, 1);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:-GROUP-ALL", "NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:+PSK:-GROUP-ALL", &user_hex, &key, 0, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_NO_COMMON_KEY_SHARE, 1);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:-GROUP-ALL", "NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:+PSK", &user_null_1, &key, 0, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_NO_COMMON_KEY_SHARE, 1);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:-GROUP-ALL", "NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:+PSK:-GROUP-ALL", &user_null_1, &key, 0, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_NO_COMMON_KEY_SHARE, 1);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:-GROUP-ALL", "NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:+PSK", &user_null_2, &key, 0, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_NO_COMMON_KEY_SHARE, 1);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:-GROUP-ALL", "NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:+PSK:-GROUP-ALL", &user_null_2, &key, 0, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_NO_COMMON_KEY_SHARE, 1);

	/* if user invalid we continue without PSK */

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.3:+PSK:+DHE-PSK", NULL, &user_nonhex, &key, 0, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_KEYFILE_ERROR, 0);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.3:+PSK:+DHE-PSK", NULL, &user_unknown, &key, 0, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_RECEIVED_ILLEGAL_PARAMETER, 0);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.3:+PSK:+DHE-PSK", NULL, &user_jas, &wrong_key, 0, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_RECEIVED_ILLEGAL_PARAMETER, 0);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.3:+PSK:+DHE-PSK", NULL, &user_hex, &wrong_key, 0, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_RECEIVED_ILLEGAL_PARAMETER, 1);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.3:+PSK:+DHE-PSK", NULL, &user_null_1, &wrong_key, 0, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_RECEIVED_ILLEGAL_PARAMETER, 1);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.3:+PSK:+DHE-PSK", NULL, &user_null_2, &wrong_key, 0, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_RECEIVED_ILLEGAL_PARAMETER, 1);

	/* try with HelloRetryRequest and PSK */

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:-GROUP-ALL:+GROUP-FFDHE2048:+GROUP-FFDHE4096", "NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:-GROUP-ALL:+GROUP-FFDHE4096", &user_jas, &key, 0, GNUTLS_KX_DHE_PSK, 0, 0, 0);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:-GROUP-ALL:+GROUP-FFDHE2048:+GROUP-FFDHE4096", "NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:-GROUP-ALL:+GROUP-FFDHE4096", &user_hex, &key, 0, GNUTLS_KX_DHE_PSK, 0, 0, 1);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:-GROUP-ALL:+GROUP-FFDHE2048:+GROUP-FFDHE4096", "NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:-GROUP-ALL:+GROUP-FFDHE4096", &user_null_1, &key, 0, GNUTLS_KX_DHE_PSK, 0, 0, 1);

	run_test2("NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:-GROUP-ALL:+GROUP-FFDHE2048:+GROUP-FFDHE4096", "NORMAL:-VERS-ALL:+VERS-TLS1.3:+DHE-PSK:-GROUP-ALL:+GROUP-FFDHE4096", &user_null_2, &key, 0, GNUTLS_KX_DHE_PSK, 0, 0, 1);

	/* try without server credentials */

	run_test3("NORMAL:-VERS-ALL:+VERS-TLS1.3:+PSK:+DHE-PSK", NULL, &user_jas, &key, 1, 0, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_INSUFFICIENT_CREDENTIALS, 0);

	run_test3("NORMAL:-VERS-ALL:+VERS-TLS1.3:+PSK:+DHE-PSK", NULL, &user_hex, &key, 1, 0, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_INSUFFICIENT_CREDENTIALS, 1);

	run_test3("NORMAL:-VERS-ALL:+VERS-TLS1.3:+PSK:+DHE-PSK", NULL, &user_null_1, &key, 1, 0, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_INSUFFICIENT_CREDENTIALS, 1);

	run_test3("NORMAL:-VERS-ALL:+VERS-TLS1.3:+PSK:+DHE-PSK", NULL, &user_null_2, &key, 1, 0, 0, GNUTLS_E_FATAL_ALERT_RECEIVED, GNUTLS_E_INSUFFICIENT_CREDENTIALS, 1);

}

#endif				/* _WIN32 */