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549fdc |
/*
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549fdc |
* Copyright (C) 2012 Free Software Foundation, Inc.
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549fdc |
*
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549fdc |
* Author: Nikos Mavrogiannopoulos
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549fdc |
*
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549fdc |
* This file is part of GnuTLS.
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549fdc |
*
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549fdc |
* GnuTLS is free software; you can redistribute it and/or modify it
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Packit |
549fdc |
* under the terms of the GNU General Public License as published by
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Packit |
549fdc |
* the Free Software Foundation; either version 3 of the License, or
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Packit |
549fdc |
* (at your option) any later version.
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549fdc |
*
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549fdc |
* GnuTLS is distributed in the hope that it will be useful, but
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549fdc |
* WITHOUT ANY WARRANTY; without even the implied warranty of
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549fdc |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Packit |
549fdc |
* General Public License for more details.
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Packit |
549fdc |
*
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Packit |
549fdc |
* You should have received a copy of the GNU General Public License
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Packit |
549fdc |
* along with GnuTLS; if not, write to the Free Software Foundation,
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549fdc |
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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Packit |
549fdc |
*/
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549fdc |
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549fdc |
#ifdef HAVE_CONFIG_H
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549fdc |
#include <config.h>
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549fdc |
#endif
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549fdc |
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549fdc |
#include <stdio.h>
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549fdc |
#include <stdlib.h>
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549fdc |
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549fdc |
#if defined(_WIN32) || !defined(ENABLE_DTLS_SRTP)
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549fdc |
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Packit |
549fdc |
int main(int argc, char **argv)
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Packit |
549fdc |
{
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549fdc |
exit(77);
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549fdc |
}
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549fdc |
|
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549fdc |
#else
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549fdc |
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549fdc |
#include <string.h>
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549fdc |
#include <sys/types.h>
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549fdc |
#include <netinet/in.h>
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549fdc |
#include <sys/socket.h>
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549fdc |
#include <sys/wait.h>
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549fdc |
#include <arpa/inet.h>
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549fdc |
#include <unistd.h>
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549fdc |
#include <gnutls/gnutls.h>
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549fdc |
#include <gnutls/dtls.h>
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549fdc |
|
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549fdc |
#include "utils.h"
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549fdc |
|
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549fdc |
static void terminate(void);
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549fdc |
|
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Packit |
549fdc |
/* This program tests the rehandshake in DTLS
|
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549fdc |
*/
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549fdc |
|
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549fdc |
static void server_log_func(int level, const char *str)
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549fdc |
{
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549fdc |
fprintf(stderr, "server|<%d>| %s", level, str);
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549fdc |
}
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549fdc |
|
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549fdc |
static void client_log_func(int level, const char *str)
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549fdc |
{
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549fdc |
fprintf(stderr, "client|<%d>| %s", level, str);
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549fdc |
}
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549fdc |
|
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Packit |
549fdc |
/* These are global */
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549fdc |
static pid_t child;
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549fdc |
|
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549fdc |
#define MAX_KEY_MATERIAL 64*4
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549fdc |
/* A very basic DTLS client, with anonymous authentication, that negotiates SRTP
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Packit |
549fdc |
*/
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549fdc |
|
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549fdc |
static void client(int fd, int profile)
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549fdc |
{
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549fdc |
gnutls_session_t session;
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549fdc |
int ret;
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549fdc |
gnutls_anon_client_credentials_t anoncred;
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549fdc |
uint8_t km[MAX_KEY_MATERIAL];
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549fdc |
char buf[2 * MAX_KEY_MATERIAL];
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Packit |
549fdc |
gnutls_datum_t cli_key, cli_salt, server_key, server_salt;
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549fdc |
/* Need to enable anonymous KX specifically. */
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549fdc |
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549fdc |
global_init();
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549fdc |
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549fdc |
if (debug) {
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549fdc |
gnutls_global_set_log_function(client_log_func);
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549fdc |
gnutls_global_set_log_level(4711);
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549fdc |
}
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549fdc |
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549fdc |
gnutls_anon_allocate_client_credentials(&anoncred);
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549fdc |
|
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549fdc |
/* Initialize TLS session
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549fdc |
*/
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549fdc |
gnutls_init(&session, GNUTLS_CLIENT | GNUTLS_DATAGRAM);
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549fdc |
gnutls_heartbeat_enable(session, GNUTLS_HB_PEER_ALLOWED_TO_SEND);
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549fdc |
gnutls_dtls_set_mtu(session, 1500);
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549fdc |
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549fdc |
/* Use default priorities */
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549fdc |
gnutls_priority_set_direct(session,
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549fdc |
"NONE:+VERS-DTLS1.0:+CIPHER-ALL:+MAC-ALL:+SIGN-ALL:+COMP-ALL:+ANON-ECDH:+CURVE-ALL",
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549fdc |
NULL);
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Packit |
549fdc |
if (profile)
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549fdc |
ret =
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549fdc |
gnutls_srtp_set_profile_direct(session,
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549fdc |
"SRTP_AES128_CM_HMAC_SHA1_80",
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Packit |
549fdc |
NULL);
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Packit |
549fdc |
else
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Packit |
549fdc |
ret =
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Packit |
549fdc |
gnutls_srtp_set_profile_direct(session,
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|
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549fdc |
"SRTP_NULL_HMAC_SHA1_80",
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Packit |
549fdc |
NULL);
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Packit |
549fdc |
if (ret < 0) {
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|
Packit |
549fdc |
gnutls_perror(ret);
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|
Packit |
549fdc |
exit(1);
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Packit |
549fdc |
}
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549fdc |
|
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549fdc |
|
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549fdc |
/* put the anonymous credentials to the current session
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|
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549fdc |
*/
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|
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549fdc |
gnutls_credentials_set(session, GNUTLS_CRD_ANON, anoncred);
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|
Packit |
549fdc |
|
|
Packit |
549fdc |
gnutls_transport_set_int(session, fd);
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|
Packit |
549fdc |
|
|
Packit |
549fdc |
/* Perform the TLS handshake
|
|
Packit |
549fdc |
*/
|
|
Packit |
549fdc |
do {
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|
Packit |
549fdc |
ret = gnutls_handshake(session);
|
|
Packit |
549fdc |
}
|
|
Packit |
549fdc |
while (ret < 0 && gnutls_error_is_fatal(ret) == 0);
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|
Packit |
549fdc |
|
|
Packit |
549fdc |
if (ret < 0) {
|
|
Packit |
549fdc |
fail("client: Handshake failed\n");
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|
Packit |
549fdc |
gnutls_perror(ret);
|
|
Packit |
549fdc |
exit(1);
|
|
Packit |
549fdc |
} else {
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|
Packit |
549fdc |
if (debug)
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|
Packit |
549fdc |
success("client: Handshake was completed\n");
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|
Packit |
549fdc |
}
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Packit |
549fdc |
|
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Packit |
549fdc |
if (debug)
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|
Packit |
549fdc |
success("client: DTLS version is: %s\n",
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|
Packit |
549fdc |
gnutls_protocol_get_name
|
|
Packit |
549fdc |
(gnutls_protocol_get_version(session)));
|
|
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549fdc |
|
|
Packit |
549fdc |
ret =
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|
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549fdc |
gnutls_srtp_get_keys(session, km, sizeof(km), &cli_key,
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|
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549fdc |
&cli_salt, &server_key, &server_salt);
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|
Packit |
549fdc |
if (ret < 0) {
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Packit |
549fdc |
gnutls_perror(ret);
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Packit |
549fdc |
exit(1);
|
|
Packit |
549fdc |
}
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Packit |
549fdc |
|
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Packit |
549fdc |
if (debug) {
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|
Packit |
549fdc |
size_t size = sizeof(buf);
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Packit |
549fdc |
gnutls_hex_encode(&cli_key, buf, &size);
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Packit |
549fdc |
success("Client key: %s\n", buf);
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Packit |
549fdc |
|
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Packit |
549fdc |
size = sizeof(buf);
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Packit |
549fdc |
gnutls_hex_encode(&cli_salt, buf, &size);
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549fdc |
success("Client salt: %s\n", buf);
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549fdc |
|
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Packit |
549fdc |
size = sizeof(buf);
|
|
Packit |
549fdc |
gnutls_hex_encode(&server_key, buf, &size);
|
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Packit |
549fdc |
success("Server key: %s\n", buf);
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549fdc |
|
|
Packit |
549fdc |
size = sizeof(buf);
|
|
Packit |
549fdc |
gnutls_hex_encode(&server_salt, buf, &size);
|
|
Packit |
549fdc |
success("Server salt: %s\n", buf);
|
|
Packit |
549fdc |
}
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
gnutls_bye(session, GNUTLS_SHUT_WR);
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
close(fd);
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
gnutls_deinit(session);
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
gnutls_anon_free_client_credentials(anoncred);
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
gnutls_global_deinit();
|
|
Packit |
549fdc |
}
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
static void terminate(void)
|
|
Packit |
549fdc |
{
|
|
Packit |
549fdc |
int status;
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
kill(child, SIGTERM);
|
|
Packit |
549fdc |
wait(&status);
|
|
Packit |
549fdc |
exit(1);
|
|
Packit |
549fdc |
}
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
static void server(int fd, int profile)
|
|
Packit |
549fdc |
{
|
|
Packit |
549fdc |
int ret;
|
|
Packit |
549fdc |
gnutls_session_t session;
|
|
Packit |
549fdc |
gnutls_anon_server_credentials_t anoncred;
|
|
Packit |
549fdc |
uint8_t km[MAX_KEY_MATERIAL];
|
|
Packit |
549fdc |
char buf[2 * MAX_KEY_MATERIAL];
|
|
Packit |
549fdc |
gnutls_datum_t cli_key, cli_salt, server_key, server_salt;
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
/* this must be called once in the program
|
|
Packit |
549fdc |
*/
|
|
Packit |
549fdc |
global_init();
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
if (debug) {
|
|
Packit |
549fdc |
gnutls_global_set_log_function(server_log_func);
|
|
Packit |
549fdc |
gnutls_global_set_log_level(4711);
|
|
Packit |
549fdc |
}
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
gnutls_anon_allocate_server_credentials(&anoncred);
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
gnutls_init(&session, GNUTLS_SERVER | GNUTLS_DATAGRAM);
|
|
Packit |
549fdc |
gnutls_heartbeat_enable(session, GNUTLS_HB_PEER_ALLOWED_TO_SEND);
|
|
Packit |
549fdc |
gnutls_dtls_set_mtu(session, 1500);
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
/* avoid calling all the priority functions, since the defaults
|
|
Packit |
549fdc |
* are adequate.
|
|
Packit |
549fdc |
*/
|
|
Packit |
549fdc |
gnutls_priority_set_direct(session,
|
|
Packit |
549fdc |
"NONE:+VERS-DTLS1.0:+CIPHER-ALL:+MAC-ALL:+SIGN-ALL:+COMP-ALL:+ANON-ECDH:+CURVE-ALL",
|
|
Packit |
549fdc |
NULL);
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
if (profile)
|
|
Packit |
549fdc |
ret =
|
|
Packit |
549fdc |
gnutls_srtp_set_profile_direct(session,
|
|
Packit |
549fdc |
"SRTP_AES128_CM_HMAC_SHA1_80",
|
|
Packit |
549fdc |
NULL);
|
|
Packit |
549fdc |
else
|
|
Packit |
549fdc |
ret =
|
|
Packit |
549fdc |
gnutls_srtp_set_profile_direct(session,
|
|
Packit |
549fdc |
"SRTP_NULL_HMAC_SHA1_80",
|
|
Packit |
549fdc |
NULL);
|
|
Packit |
549fdc |
if (ret < 0) {
|
|
Packit |
549fdc |
gnutls_perror(ret);
|
|
Packit |
549fdc |
exit(1);
|
|
Packit |
549fdc |
}
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
gnutls_credentials_set(session, GNUTLS_CRD_ANON, anoncred);
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
gnutls_transport_set_int(session, fd);
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
do {
|
|
Packit |
549fdc |
ret = gnutls_handshake(session);
|
|
Packit |
549fdc |
}
|
|
Packit |
549fdc |
while (ret < 0 && gnutls_error_is_fatal(ret) == 0);
|
|
Packit |
549fdc |
if (ret < 0) {
|
|
Packit |
549fdc |
close(fd);
|
|
Packit |
549fdc |
gnutls_deinit(session);
|
|
Packit |
549fdc |
fail("server: Handshake has failed (%s)\n\n",
|
|
Packit |
549fdc |
gnutls_strerror(ret));
|
|
Packit |
549fdc |
terminate();
|
|
Packit |
549fdc |
}
|
|
Packit |
549fdc |
if (debug)
|
|
Packit |
549fdc |
success("server: Handshake was completed\n");
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
if (debug)
|
|
Packit |
549fdc |
success("server: TLS version is: %s\n",
|
|
Packit |
549fdc |
gnutls_protocol_get_name
|
|
Packit |
549fdc |
(gnutls_protocol_get_version(session)));
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
ret =
|
|
Packit |
549fdc |
gnutls_srtp_get_keys(session, km, sizeof(km), &cli_key,
|
|
Packit |
549fdc |
&cli_salt, &server_key, &server_salt);
|
|
Packit |
549fdc |
if (ret < 0) {
|
|
Packit |
549fdc |
gnutls_perror(ret);
|
|
Packit |
549fdc |
exit(1);
|
|
Packit |
549fdc |
}
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
if (debug) {
|
|
Packit |
549fdc |
size_t size = sizeof(buf);
|
|
Packit |
549fdc |
gnutls_hex_encode(&cli_key, buf, &size);
|
|
Packit |
549fdc |
success("Client key: %s\n", buf);
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
size = sizeof(buf);
|
|
Packit |
549fdc |
gnutls_hex_encode(&cli_salt, buf, &size);
|
|
Packit |
549fdc |
success("Client salt: %s\n", buf);
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
size = sizeof(buf);
|
|
Packit |
549fdc |
gnutls_hex_encode(&server_key, buf, &size);
|
|
Packit |
549fdc |
success("Server key: %s\n", buf);
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
size = sizeof(buf);
|
|
Packit |
549fdc |
gnutls_hex_encode(&server_salt, buf, &size);
|
|
Packit |
549fdc |
success("Server salt: %s\n", buf);
|
|
Packit |
549fdc |
}
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
/* do not wait for the peer to close the connection.
|
|
Packit |
549fdc |
*/
|
|
Packit |
549fdc |
gnutls_bye(session, GNUTLS_SHUT_WR);
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
close(fd);
|
|
Packit |
549fdc |
gnutls_deinit(session);
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
gnutls_anon_free_server_credentials(anoncred);
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
gnutls_global_deinit();
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
if (debug)
|
|
Packit |
549fdc |
success("server: finished\n");
|
|
Packit |
549fdc |
}
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
static void start(int profile)
|
|
Packit |
549fdc |
{
|
|
Packit |
549fdc |
int fd[2];
|
|
Packit |
549fdc |
int ret;
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fd);
|
|
Packit |
549fdc |
if (ret < 0) {
|
|
Packit |
549fdc |
perror("socketpair");
|
|
Packit |
549fdc |
exit(1);
|
|
Packit |
549fdc |
}
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
child = fork();
|
|
Packit |
549fdc |
if (child < 0) {
|
|
Packit |
549fdc |
perror("fork");
|
|
Packit |
549fdc |
fail("fork");
|
|
Packit |
549fdc |
exit(1);
|
|
Packit |
549fdc |
}
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
if (child) {
|
|
Packit |
549fdc |
int status;
|
|
Packit |
549fdc |
/* parent */
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
server(fd[0], profile);
|
|
Packit |
549fdc |
wait(&status);
|
|
Packit |
549fdc |
check_wait_status(status);
|
|
Packit |
549fdc |
} else {
|
|
Packit |
549fdc |
close(fd[0]);
|
|
Packit |
549fdc |
client(fd[1], profile);
|
|
Packit |
549fdc |
exit(0);
|
|
Packit |
549fdc |
}
|
|
Packit |
549fdc |
}
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
void doit(void)
|
|
Packit |
549fdc |
{
|
|
Packit |
549fdc |
start(0);
|
|
Packit |
549fdc |
start(1);
|
|
Packit |
549fdc |
}
|
|
Packit |
549fdc |
|
|
Packit |
549fdc |
#endif /* _WIN32 */
|