/*

 * Copyright (C) 2015 Red Hat, Inc.

 *

 * 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>

#if defined(_WIN32) || !defined(ENABLE_ALPN)

int main(int argc, char **argv)

{

	exit(77);

}

#else

#include <string.h>

#include <sys/types.h>

#include <netinet/in.h>

#include <sys/socket.h>

#include <sys/wait.h>

#include <arpa/inet.h>

#include <unistd.h>

#include <signal.h>

#include <gnutls/gnutls.h>

#include <gnutls/dtls.h>

#include "utils.h"

static void terminate(void);

/* This program tests whether the gnutls_prf() works as

 * expected.

 */

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

{

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

}

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

{

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

}

/* These are global */

static pid_t child;

static unsigned char server_cert_pem[] =

"-----BEGIN CERTIFICATE-----\n"

"MIIDIzCCAgugAwIBAgIMUz8PCR2sdRK56V6OMA0GCSqGSIb3DQEBCwUAMA8xDTAL\n"

"BgNVBAMTBENBLTEwIhgPMjAxNDA0MDQxOTU5MDVaGA85OTk5MTIzMTIzNTk1OVow\n"

"EzERMA8GA1UEAxMIc2VydmVyLTIwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEK\n"

"AoIBAQDZ3dCzh9gOTOiOb2dtrPu91fYYgC/ey0ACYjQxaru7FZwnuXPhQK9KHsIV\n"

"YRIyo49wjKZddkHet2sbpFAAeETZh8UUWLRb/mupyaSJMycaYCNjLZCUJTztvXxJ\n"

"CCNfbtgvKC+Vu1mu94KBPatslgvnsamH7AiL5wmwRRqdH/Z93XaEvuRG6Zk0Sh9q\n"

"ZMdCboGfjtmGEJ1V+z5CR+IyH4sckzd8WJW6wBSEwgliGaXnc75xKtFWBZV2njNr\n"

"8V1TOYOdLEbiF4wduVExL5TKq2ywNkRpUfK2I1BcWS5D9Te/QT7aSdE08rL6ztmZ\n"

"IhILSrMOfoLnJ4lzXspz3XLlEuhnAgMBAAGjdzB1MAwGA1UdEwEB/wQCMAAwFAYD\n"

"VR0RBA0wC4IJbG9jYWxob3N0MA8GA1UdDwEB/wQFAwMHoAAwHQYDVR0OBBYEFJXR\n"

"raRS5MVhEqaRE42A3S2BIj7UMB8GA1UdIwQYMBaAFP6S7AyMRO2RfkANgo8YsCl8\n"

"JfJkMA0GCSqGSIb3DQEBCwUAA4IBAQCQ62+skMVZYrGbpab8RI9IG6xH8kEndvFj\n"

"J7wBBZCOlcjOj+HQ7a2buF5zGKRwAOSznKcmvZ7l5DPdsd0t5/VT9LKSbQ6+CfGr\n"

"Xs5qPaDJnRhZkOILCvXJ9qyO+79WNMsg9pWnxkTK7aWR5OYE+1Qw1jG681HMkWTm\n"

"nt7et9bdiNNpvA+L55569XKbdtJLs3hn5gEQFgS7EaEj59aC4vzSTFcidowCoa43\n"

"7JmfSfC9YaAIFH2vriyU0QNf2y7cG5Hpkge+U7uMzQrsT77Q3SDB9WkyPAFNSB4Q\n"

"B/r+OtZXOnQhLlMV7h4XGlWruFEaOBVjFHSdMGUh+DtaLvd1bVXI\n"

"-----END CERTIFICATE-----\n"

"-----BEGIN CERTIFICATE-----\n"

"MIIDATCCAemgAwIBAgIBATANBgkqhkiG9w0BAQsFADAPMQ0wCwYDVQQDEwRDQS0w\n"

"MCIYDzIwMTQwNDA0MTk1OTA1WhgPOTk5OTEyMzEyMzU5NTlaMA8xDTALBgNVBAMT\n"

"BENBLTEwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDvhyQfsUm3T0xK\n"

"jiBXO3H6Y27b7lmCRYZQCmXCl2sUsGDL7V9biavTt3+sorWtH542/cTGDh5n8591\n"

"7rVxAB/VASmN55O3fjZyFGrjusjhXBla0Yxe5rZ/7/Pjrq84T7gc/IXiX9Sums/c\n"

"o9AeoykfhsjV2ubhh4h+8uPsHDTcAFTxq3mQaoldwnW2nmjDFzaKLtQdnyFf41o6\n"

"nsJCK/J9PtpdCID5Zb+eQfu5Yhk1iUHe8a9TOstCHtgBq61YzufDHUQk3zsT+VZM\n"

"20lDvSBnHdWLjxoea587JbkvtH8xRR8ThwABSb98qPnhJ8+A7mpO89QO1wxZM85A\n"

"xEweQlMHAgMBAAGjZDBiMA8GA1UdEwEB/wQFMAMBAf8wDwYDVR0PAQH/BAUDAwcE\n"

"ADAdBgNVHQ4EFgQU/pLsDIxE7ZF+QA2CjxiwKXwl8mQwHwYDVR0jBBgwFoAUGD0R\n"

"Yr2H7kfjQUcBMxSTCDQnhu0wDQYJKoZIhvcNAQELBQADggEBANEXLUV+Z1PGTn7M\n"

"3rPT/m/EamcrZJ3vFWrnfN91ws5llyRUKNhx6222HECh3xRSxH9YJONsbv2zY6sd\n"

"ztY7lvckL4xOgWAjoCVTx3hqbZjDxpLRsvraw1PlqBHlRQVWLKlEQ55+tId2zgMX\n"

"Z+wxM7FlU/6yWVPODIxrqYQd2KqaEp4aLIklw6Hi4HD6DnQJikjsJ6Noe0qyX1Tx\n"

"uZ8mgP/G47Fe2d2H29kJ1iJ6hp1XOqyWrVIh/jONcnTvWS8aMqS3MU0EJH2Pb1Qa\n"

"KGIvbd/3H9LykFTP/b7Imdv2fZxXIK8jC+jbF1w6rdBCVNA0p30X/jonoC3vynEK\n"

"5cK0cgs=\n"

"-----END CERTIFICATE-----\n";

const gnutls_datum_t server_cert = { server_cert_pem,

	sizeof(server_cert_pem)

};

static unsigned char server_key_pem[] =

"-----BEGIN RSA PRIVATE KEY-----\n"

"MIIEpQIBAAKCAQEA2d3Qs4fYDkzojm9nbaz7vdX2GIAv3stAAmI0MWq7uxWcJ7lz\n"

"4UCvSh7CFWESMqOPcIymXXZB3rdrG6RQAHhE2YfFFFi0W/5rqcmkiTMnGmAjYy2Q\n"

"lCU87b18SQgjX27YLygvlbtZrveCgT2rbJYL57Gph+wIi+cJsEUanR/2fd12hL7k\n"

"RumZNEofamTHQm6Bn47ZhhCdVfs+QkfiMh+LHJM3fFiVusAUhMIJYhml53O+cSrR\n"

"VgWVdp4za/FdUzmDnSxG4heMHblRMS+UyqtssDZEaVHytiNQXFkuQ/U3v0E+2knR\n"

"NPKy+s7ZmSISC0qzDn6C5yeJc17Kc91y5RLoZwIDAQABAoIBAQCRXAu5HPOsZufq\n"

"0K2DYZz9BdqSckR+M8HbVUZZiksDAeIUJwoHyi6qF2eK+B86JiK4Bz+gsBw2ys3t\n"

"vW2bQqM9N/boIl8D2fZfbCgZWkXGtUonC+mgzk+el4Rq/cEMFVqr6/YDwuKNeJpc\n"

"PJc5dcsvpTvlcjgpj9bJAvJEz2SYiIUpvtG4WNMGGapVZZPDvWn4/isY+75T5oDf\n"

"1X5jG0lN9uoUjcuGuThN7gxjwlRkcvEOPHjXc6rxfrWIDdiz/91V46PwpqVDpRrg\n"

"ig6U7+ckS0Oy2v32x0DaDhwAfDJ2RNc9az6Z+11lmY3LPkjG/p8Klcmgvt4/lwkD\n"

"OYRC5QGRAoGBAPFdud6nmVt9h1DL0o4R6snm6P3K81Ds765VWVmpzJkK3+bwe4PQ\n"

"GQQ0I0zN4hXkDMwHETS+EVWllqkK/d4dsE3volYtyTti8zthIATlgSEJ81x/ChAQ\n"

"vvXxgx+zPUnb1mUwy+X+6urTHe4bxN2ypg6ROIUmT+Hx1ITG40LRRiPTAoGBAOcT\n"

"WR8DTrj42xbxAUpz9vxJ15ZMwuIpk3ShE6+CWqvaXHF22Ju4WFwRNlW2zVLH6UMt\n"

"nNfOzyDoryoiu0+0mg0wSmgdJbtCSHoI2GeiAnjGn5i8flQlPQ8bdwwmU6g6I/EU\n"

"QRbGK/2XLmlrGN52gVy9UX0NsAA5fEOsAJiFj1CdAoGBAN9i3nbq6O2bNVSa/8mL\n"

"XaD1vGe/oQgh8gaIaYSpuXlfbjCAG+C4BZ81XgJkfj3CbfGbDNqimsqI0fKsAJ/F\n"

"HHpVMgrOn3L+Np2bW5YMj0Fzwy+1SCvsQ8C+gJwjOLMV6syGp/+6udMSB55rRv3k\n"

"rPnIf+YDumUke4tTw9wAcgkPAoGASHMkiji7QfuklbjSsslRMyDj21gN8mMevH6U\n"

"cX7pduBsA5dDqu9NpPAwnQdHsSDE3i868d8BykuqQAfLut3hPylY6vPYlLHfj4Oe\n"

"dj+xjrSX7YeMBE34qvfth32s1R4FjtzO25keyc/Q2XSew4FcZftlxVO5Txi3AXC4\n"

"bxnRKXECgYEAva+og7/rK+ZjboJVNxhFrwHp9bXhz4tzrUaWNvJD2vKJ5ZcThHcX\n"

"zCig8W7eXHLPLDhi9aWZ3kUZ1RLhrFc/6dujtVtU9z2w1tmn1I+4Zi6D6L4DzKdg\n"

"nMRLFoXufs/qoaJTqa8sQvKa+ceJAF04+gGtw617cuaZdZ3SYRLR2dk=\n"

"-----END RSA PRIVATE KEY-----\n";

const gnutls_datum_t server_key = { server_key_pem,

	sizeof(server_key_pem)

};

static const

gnutls_datum_t hrnd = {(void*)"\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32};

static const

gnutls_datum_t hsrnd = {(void*)"\x00\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32};

static void dump(const char *name, const uint8_t *data, unsigned data_size)

{

	unsigned i;

	fprintf(stderr, "%s", name);

	for (i=0;i

		fprintf(stderr, "\\x%.2x", (unsigned)data[i]);

	fprintf(stderr, "\n");

}

static gnutls_datum_t master =

    { (void*)"\x44\x66\x44\xa9\xb6\x29\xed\x6e\xd6\x93\x15\xdb\xf0\x7d\x4b\x2e\x18\xb1\x9d\xed\xff\x6a\x86\x76\xc9\x0e\x16\xab\xc2\x10\xbb\x17\x99\x24\xb1\xd9\xb9\x95\xe7\xea\xea\xea\xea\xea\xff\xaa\xac", 48};

static gnutls_datum_t sess_id =

    { (void*)"\xd9\xb9\x95\xe7\xea", 5};

#define TRY(label_size, label, extra_size, extra, size, exp) \

	{ \

	ret = gnutls_prf_rfc5705(session, label_size, label, extra_size, extra, size, \

			 (void*)key_material); \

	if (ret < 0) { \

		fprintf(stderr, "gnutls_prf_rfc5705: error in %d\n", __LINE__); \

		gnutls_perror(ret); \

		exit(1); \

	} \

	if (memcmp(key_material, exp, size) != 0) { \

		fprintf(stderr, "gnutls_prf_rfc5705: output doesn't match for '%s'\n", label); \

		dump("got ", key_material, size); \

		dump("expected ", exp, size); \

		exit(1); \

	} \

	}

#define TRY_OLD(label_size, label, extra_size, extra, size, exp) \

	{ \

	ret = gnutls_prf(session, label_size, label, 1, extra_size, extra, size, \

			 (void*)key_material); \

	if (ret < 0) { \

		fprintf(stderr, "gnutls_prf: error in %d\n", __LINE__); \

		gnutls_perror(ret); \

		exit(1); \

	} \

	if (memcmp(key_material, exp, size) != 0) { \

		fprintf(stderr, "gnutls_prf: output doesn't match for '%s'\n", label); \

		dump("got ", key_material, size); \

		dump("expected ", exp, size); \

		exit(1); \

	} \

	}

static void check_prfs(gnutls_session_t session)

{

	unsigned char key_material[512];

	unsigned char key_material2[512];

	int ret;

	TRY(13, "key expansion", 0, NULL, 34, (uint8_t*)"\xcf\x3e\x1c\x03\x47\x1a\xdf\x4a\x8e\x74\xc6\xda\xcd\xda\x22\xa4\x8e\xa5\xf7\x62\xef\xd6\x47\xe7\x41\x20\xea\x44\xb8\x5d\x66\x87\x0a\x61");

	TRY(6, "hello", 0, NULL, 31, (uint8_t*)"\x83\x6c\xc7\x8e\x1b\x62\xc7\x06\x17\x99\x37\x95\x2e\xb8\x42\x5c\x42\xcd\x75\x65\x2c\xa3\x16\x2b\xab\x0a\xcf\xfc\xc8\x90\x30");

	TRY(7, "context", 5, "abcd\xfa", 31, (uint8_t*)"\x5b\xc7\x72\xe9\xda\xe4\x79\x3e\xfe\x9a\xc5\x6f\xf4\x8d\x5a\xfe\x4c\x8d\x16\xa7\xf0\x13\x13\xf1\x93\xdd\x4b\x43\x65\xc1\x94");

	TRY(12, "null-context", 0, "", 31, (uint8_t*)"\xd7\xb6\xff\x3d\xf7\xbe\x0e\xf2\xd0\xbf\x55\x0b\x56\xac\xfb\x3c\x1d\x5c\xaa\xa8\x71\x45\xf5\xd5\x71\x35\xa2\x35\x83\xc2\xe0");

	TRY_OLD(6, "hello", 0, NULL, 31, (uint8_t*)"\x53\x35\x9b\x1c\xbf\xf2\x50\x85\xa1\xbc\x42\xfb\x45\x92\xc3\xbe\x20\x24\x24\xe2\xeb\x6e\xf7\x4f\xc0\xee\xe3\xaa\x46\x36\xfd");

	TRY_OLD(7, "context", 5, "abcd\xfa", 31, (uint8_t*)"\x5f\x75\xb7\x61\x76\x4c\x1e\x86\x4b\x7d\x2e\x6c\x09\x91\xfd\x1e\xe6\xe8\xee\xf9\x86\x6a\x80\xfe\xf3\xbe\x96\xd0\x47\xf5\x9e");

	/* check whether gnutls_prf matches gnutls_prf_rfc5705 when no context is given */

	ret = gnutls_prf(session, 4, "aaaa", 0, 0, NULL, 64,

			 (void*)key_material);

	if (ret < 0) {

		fprintf(stderr, "gnutls_prf: error in %d\n", __LINE__);

		gnutls_perror(ret);

		exit(1);

	}

	ret = gnutls_prf_rfc5705(session, 4, "aaaa", 0, NULL, 64,

			 (void*)key_material2);

	if (ret < 0) {

		fprintf(stderr, "gnutls_prf_rfc5705: error in %d\n", __LINE__);

		gnutls_perror(ret);

		exit(1);

	}

	if (memcmp(key_material, key_material2, 64) != 0) {

		fprintf(stderr, "gnutls_prf: output doesn't match in cross-check\n");

		dump("got1 ", key_material, 64);

		dump("got2 ", key_material2, 64);

		exit(1);

	}

}

static void client(int fd)

{

	gnutls_session_t session;

	int ret;

	gnutls_certificate_credentials_t clientx509cred;

	const char *err;

	/* Need to enable anonymous KX specifically. */

	global_init();

	if (debug) {

		gnutls_global_set_log_function(client_log_func);

		gnutls_global_set_log_level(4711);

	}

	gnutls_certificate_allocate_credentials(&clientx509cred);

	/* Initialize TLS session

	 */

	gnutls_init(&session, GNUTLS_CLIENT);

	ret = gnutls_session_set_premaster(session, GNUTLS_CLIENT,

		GNUTLS_TLS1_0, GNUTLS_KX_RSA,

		GNUTLS_CIPHER_AES_128_CBC, GNUTLS_MAC_SHA1,

		GNUTLS_COMP_NULL, &master, &sess_id);

	if (ret < 0) {

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

		exit(1);

	}

	/* Use default priorities */

	ret = gnutls_priority_set_direct(session,

				   "NONE:+VERS-TLS1.0:+AES-128-CBC:+SHA1:+SIGN-ALL:+COMP-NULL:+RSA",

				   &err;;

	if (ret < 0) {

		fail("client: priority set failed (%s): %s\n",

		     gnutls_strerror(ret), err);

		exit(1);

	}

	ret = gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE,

				clientx509cred);

	if (ret < 0)

		exit(1);

	gnutls_handshake_set_random(session, &hrnd);

	gnutls_transport_set_int(session, fd);

	if (gnutls_prf(session, 4, "aaaa", 0, 0, NULL, sizeof(err), (char *)&err) !=

			GNUTLS_E_INVALID_REQUEST ||

	    gnutls_prf_rfc5705(session, 4, "aaaa", 0, NULL, sizeof(err), (char *)&err) !=

			GNUTLS_E_INVALID_REQUEST) {

		fprintf(stderr, "unexpected prf error code\n");

		exit(1);

	}

	/* Perform the TLS handshake

	 */

	do {

		ret = gnutls_handshake(session);

	}

	while (ret < 0 && gnutls_error_is_fatal(ret) == 0);

	if (ret < 0) {

		fail("client: Handshake failed: %s\n", strerror(ret));

		exit(1);

	} else {

		if (debug)

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

	}

	if (debug)

		success("client: TLS version is: %s\n",

			gnutls_protocol_get_name

			(gnutls_protocol_get_version(session)));

	ret = gnutls_cipher_get(session);

	if (ret != GNUTLS_CIPHER_AES_128_CBC) {

		fprintf(stderr, "negotiated unexpected cipher: %s\n", gnutls_cipher_get_name(ret));

		exit(1);

	}

	ret = gnutls_mac_get(session);

	if (ret != GNUTLS_MAC_SHA1) {

		fprintf(stderr, "negotiated unexpected mac: %s\n", gnutls_mac_get_name(ret));

		exit(1);

	}

	ret = gnutls_prf_hash_get(session);

	if (ret != GNUTLS_DIG_MD5_SHA1) {

		fprintf(stderr, "negotiated unexpected hash: %s\n", gnutls_digest_get_name(ret));

		exit(1);

	}

	check_prfs(session);

	gnutls_bye(session, GNUTLS_SHUT_WR);

	close(fd);

	gnutls_deinit(session);

	gnutls_certificate_free_credentials(clientx509cred);

	gnutls_global_deinit();

}

static void terminate(void)

{

	int status = 0;

	kill(child, SIGTERM);

	wait(&status);

	exit(1);

}

static void server(int fd)

{

	int ret;

	gnutls_session_t session;

	gnutls_certificate_credentials_t serverx509cred;

	/* this must be called once in the program

	 */

	global_init();

	if (debug) {

		gnutls_global_set_log_function(server_log_func);

		gnutls_global_set_log_level(4711);

	}

	gnutls_certificate_allocate_credentials(&serverx509cred);

	gnutls_init(&session, GNUTLS_SERVER);

	/* avoid calling all the priority functions, since the defaults

	 * are adequate.

	 */

	ret = gnutls_priority_set_direct(session,

				   "NORMAL:-KX-ALL:+RSA:%NO_SESSION_HASH", NULL);

	if (ret < 0) {

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

		     gnutls_strerror(ret));

		terminate();

	}

	ret = gnutls_session_set_premaster(session, GNUTLS_SERVER,

		GNUTLS_TLS1_0, GNUTLS_KX_RSA,

		GNUTLS_CIPHER_AES_128_CBC, GNUTLS_MAC_SHA1,

		GNUTLS_COMP_NULL, &master, &sess_id);

	if (ret < 0) {

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

		exit(1);

	}

	gnutls_certificate_set_x509_key_mem(serverx509cred,

					    &server_cert, &server_key,

					    GNUTLS_X509_FMT_PEM);

	gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE,

				serverx509cred);

	gnutls_handshake_set_random(session, &hsrnd);

	gnutls_transport_set_int(session, fd);

	do {

		ret = gnutls_handshake(session);

	}

	while (ret < 0 && gnutls_error_is_fatal(ret) == 0);

	if (ret < 0) {

		close(fd);

		gnutls_deinit(session);

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

		     gnutls_strerror(ret));

		terminate();

	}

	if (debug)

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

	if (debug)

		success("server: TLS version is: %s\n",

			gnutls_protocol_get_name

			(gnutls_protocol_get_version(session)));

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

	 */

	gnutls_bye(session, GNUTLS_SHUT_WR);

	close(fd);

	gnutls_deinit(session);

	gnutls_certificate_free_credentials(serverx509cred);

	gnutls_global_deinit();

	if (debug)

		success("server: finished\n");

}

static void start(void)

{

	int fd[2];

	int ret;

	signal(SIGPIPE, SIG_IGN);

	ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fd);

	if (ret < 0) {

		perror("socketpair");

		exit(1);

	}

	child = fork();

	if (child < 0) {

		perror("fork");

		fail("fork");

		exit(1);

	}

	if (child) {

		int status;

		/* parent */

		server(fd[0]);

		wait(&status);

		check_wait_status(status);

	} else {

		close(fd[0]);

		client(fd[1]);

		exit(0);

	}

}

void doit(void)

{

	start();

}

#endif				/* _WIN32 */