|
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/*
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|
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aea12f |
* Copyright (C) 2015 Red Hat, Inc.
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aea12f |
*
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aea12f |
* Author: Nikos Mavrogiannopoulos
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aea12f |
*
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aea12f |
* This file is part of GnuTLS.
|
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aea12f |
*
|
|
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aea12f |
* GnuTLS is free software; you can redistribute it and/or modify it
|
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aea12f |
* under the terms of the GNU General Public License as published by
|
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aea12f |
* the Free Software Foundation; either version 3 of the License, or
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aea12f |
* (at your option) any later version.
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aea12f |
*
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aea12f |
* GnuTLS is distributed in the hope that it will be useful, but
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aea12f |
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
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aea12f |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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aea12f |
* General Public License for more details.
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aea12f |
*
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aea12f |
* You should have received a copy of the GNU General Public License
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aea12f |
* along with GnuTLS; if not, write to the Free Software Foundation,
|
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aea12f |
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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|
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aea12f |
*/
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|
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aea12f |
#ifdef HAVE_CONFIG_H
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#include <config.h>
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aea12f |
#endif
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aea12f |
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aea12f |
#include <stdio.h>
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aea12f |
#include <stdlib.h>
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|
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aea12f |
#if defined(_WIN32)
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|
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aea12f |
int main()
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aea12f |
{
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aea12f |
exit(77);
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}
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aea12f |
|
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aea12f |
#else
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aea12f |
|
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aea12f |
#include <string.h>
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aea12f |
#include <sys/types.h>
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aea12f |
#include <netinet/in.h>
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aea12f |
#include <sys/socket.h>
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aea12f |
#include <sys/wait.h>
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aea12f |
#include <arpa/inet.h>
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|
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aea12f |
#include <unistd.h>
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aea12f |
#include <gnutls/gnutls.h>
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aea12f |
#include <gnutls/dtls.h>
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aea12f |
#include <signal.h>
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aea12f |
#include <assert.h>
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aea12f |
|
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aea12f |
#include "utils.h"
|
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aea12f |
#include "cert-common.h"
|
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|
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aea12f |
static void terminate(void);
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|
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/* This program tests whether EtM is negotiated as expected.
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aea12f |
*/
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aea12f |
|
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static void server_log_func(int level, const char *str)
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aea12f |
{
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aea12f |
fprintf(stderr, "server|<%d>| %s", level, str);
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aea12f |
}
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aea12f |
|
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aea12f |
static void client_log_func(int level, const char *str)
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|
Packit |
aea12f |
{
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aea12f |
fprintf(stderr, "client|<%d>| %s", level, str);
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aea12f |
}
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|
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/* A very basic TLS client, with anonymous authentication.
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*/
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|
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aea12f |
#define MAX_BUF 1024
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static void client(int fd, const char *prio, unsigned etm)
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{
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aea12f |
int ret;
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aea12f |
char buffer[MAX_BUF + 1];
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aea12f |
gnutls_anon_client_credentials_t anoncred;
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aea12f |
gnutls_certificate_credentials_t x509_cred;
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gnutls_session_t session;
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aea12f |
/* Need to enable anonymous KX specifically. */
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aea12f |
global_init();
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aea12f |
if (debug) {
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aea12f |
gnutls_global_set_log_function(client_log_func);
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|
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aea12f |
gnutls_global_set_log_level(7);
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|
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aea12f |
}
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|
|
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gnutls_anon_allocate_client_credentials(&anoncred);
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|
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gnutls_certificate_allocate_credentials(&x509_cred);
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|
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|
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/* Initialize TLS session
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|
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aea12f |
*/
|
|
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aea12f |
gnutls_init(&session, GNUTLS_CLIENT);
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|
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|
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/* Use default priorities */
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|
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assert(gnutls_priority_set_direct(session, prio, NULL)>=0);
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|
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/* put the anonymous credentials to the current session
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*/
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gnutls_credentials_set(session, GNUTLS_CRD_ANON, anoncred);
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|
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gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, x509_cred);
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|
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gnutls_transport_set_int(session, fd);
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|
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/* Perform the TLS handshake
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|
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*/
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do {
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aea12f |
ret = gnutls_handshake(session);
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Packit |
aea12f |
}
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|
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while (ret < 0 && gnutls_error_is_fatal(ret) == 0);
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aea12f |
if (ret < 0) {
|
|
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aea12f |
fail("client: Handshake failed\n");
|
|
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aea12f |
gnutls_perror(ret);
|
|
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exit(1);
|
|
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aea12f |
} else {
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|
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if (debug)
|
|
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success("client: Handshake was completed\n");
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|
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aea12f |
}
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|
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|
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if (debug)
|
|
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success("client: TLS version is: %s\n",
|
|
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gnutls_protocol_get_name
|
|
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aea12f |
(gnutls_protocol_get_version(session)));
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
if (etm != 0 && gnutls_session_etm_status(session) == 0) {
|
|
Packit |
aea12f |
fail("client: EtM was not negotiated with %s!\n", prio);
|
|
Packit |
aea12f |
exit(1);
|
|
Packit |
aea12f |
} else if (etm == 0 && gnutls_session_etm_status(session) != 0) {
|
|
Packit |
aea12f |
fail("client: EtM was negotiated with %s!\n", prio);
|
|
Packit |
aea12f |
exit(1);
|
|
Packit |
aea12f |
}
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
if (etm != 0 && ((gnutls_session_get_flags(session) & GNUTLS_SFLAGS_ETM) == 0)) {
|
|
Packit |
aea12f |
fail("client: EtM was not negotiated with %s!\n", prio);
|
|
Packit |
aea12f |
exit(1);
|
|
Packit |
aea12f |
} else if (etm == 0 && ((gnutls_session_get_flags(session) & GNUTLS_SFLAGS_ETM) != 0)) {
|
|
Packit |
aea12f |
fail("client: EtM was negotiated with %s!\n", prio);
|
|
Packit |
aea12f |
exit(1);
|
|
Packit |
aea12f |
}
|
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aea12f |
|
|
Packit |
aea12f |
do {
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aea12f |
do {
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aea12f |
ret = gnutls_record_recv(session, buffer, MAX_BUF);
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aea12f |
} while (ret == GNUTLS_E_AGAIN
|
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Packit |
aea12f |
|| ret == GNUTLS_E_INTERRUPTED);
|
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Packit |
aea12f |
} while (ret > 0);
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aea12f |
|
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aea12f |
if (ret == 0) {
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aea12f |
if (debug)
|
|
Packit |
aea12f |
success
|
|
Packit |
aea12f |
("client: Peer has closed the TLS connection\n");
|
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Packit |
aea12f |
goto end;
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|
Packit |
aea12f |
} else if (ret < 0) {
|
|
Packit |
aea12f |
if (ret != 0) {
|
|
Packit |
aea12f |
fail("client: Error: %s\n", gnutls_strerror(ret));
|
|
Packit |
aea12f |
exit(1);
|
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aea12f |
}
|
|
Packit |
aea12f |
}
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|
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aea12f |
|
|
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gnutls_bye(session, GNUTLS_SHUT_WR);
|
|
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|
|
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end:
|
|
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|
|
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aea12f |
close(fd);
|
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|
|
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aea12f |
gnutls_deinit(session);
|
|
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|
|
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aea12f |
gnutls_anon_free_client_credentials(anoncred);
|
|
Packit |
aea12f |
gnutls_certificate_free_credentials(x509_cred);
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
gnutls_global_deinit();
|
|
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aea12f |
}
|
|
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aea12f |
|
|
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aea12f |
|
|
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aea12f |
/* These are global */
|
|
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aea12f |
pid_t child;
|
|
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aea12f |
|
|
Packit |
aea12f |
static void terminate(void)
|
|
Packit |
aea12f |
{
|
|
Packit |
aea12f |
kill(child, SIGTERM);
|
|
Packit |
aea12f |
exit(1);
|
|
Packit |
aea12f |
}
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
static void server(int fd, const char *prio, unsigned etm)
|
|
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aea12f |
{
|
|
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aea12f |
int ret;
|
|
Packit |
aea12f |
char buffer[MAX_BUF + 1];
|
|
Packit |
aea12f |
gnutls_session_t session;
|
|
Packit |
aea12f |
gnutls_anon_server_credentials_t anoncred;
|
|
Packit |
aea12f |
gnutls_certificate_credentials_t x509_cred;
|
|
Packit |
aea12f |
unsigned to_send = sizeof(buffer)/4;
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
/* this must be called once in the program
|
|
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aea12f |
*/
|
|
Packit |
aea12f |
global_init();
|
|
Packit |
aea12f |
memset(buffer, 0, sizeof(buffer));
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
if (debug) {
|
|
Packit |
aea12f |
gnutls_global_set_log_function(server_log_func);
|
|
Packit |
aea12f |
gnutls_global_set_log_level(4711);
|
|
Packit |
aea12f |
}
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
gnutls_certificate_allocate_credentials(&x509_cred);
|
|
Packit |
aea12f |
gnutls_certificate_set_x509_key_mem(x509_cred, &server_cert,
|
|
Packit |
aea12f |
&server_key,
|
|
Packit |
aea12f |
GNUTLS_X509_FMT_PEM);
|
|
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aea12f |
|
|
Packit |
aea12f |
gnutls_anon_allocate_server_credentials(&anoncred);
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
gnutls_init(&session, GNUTLS_SERVER);
|
|
Packit |
aea12f |
|
|
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aea12f |
/* avoid calling all the priority functions, since the defaults
|
|
Packit |
aea12f |
* are adequate.
|
|
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aea12f |
*/
|
|
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aea12f |
assert(gnutls_priority_set_direct(session, prio, NULL) >= 0);
|
|
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aea12f |
|
|
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aea12f |
gnutls_credentials_set(session, GNUTLS_CRD_ANON, anoncred);
|
|
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aea12f |
gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, x509_cred);
|
|
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aea12f |
|
|
Packit |
aea12f |
gnutls_transport_set_int(session, fd);
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
do {
|
|
Packit |
aea12f |
ret = gnutls_handshake(session);
|
|
Packit |
aea12f |
} while (ret < 0 && gnutls_error_is_fatal(ret) == 0);
|
|
Packit |
aea12f |
if (ret < 0) {
|
|
Packit |
aea12f |
close(fd);
|
|
Packit |
aea12f |
gnutls_deinit(session);
|
|
Packit |
aea12f |
fail("server: Handshake has failed (%s)\n\n",
|
|
Packit |
aea12f |
gnutls_strerror(ret));
|
|
Packit |
aea12f |
terminate();
|
|
Packit |
aea12f |
}
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
if (etm != 0 && gnutls_session_etm_status(session) == 0) {
|
|
Packit |
aea12f |
fail("server: EtM was not negotiated with %s!\n", prio);
|
|
Packit |
aea12f |
exit(1);
|
|
Packit |
aea12f |
} else if (etm == 0 && gnutls_session_etm_status(session) != 0) {
|
|
Packit |
aea12f |
fail("server: EtM was negotiated with %s!\n", prio);
|
|
Packit |
aea12f |
exit(1);
|
|
Packit |
aea12f |
}
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
if (etm != 0 && ((gnutls_session_get_flags(session) & GNUTLS_SFLAGS_ETM) == 0)) {
|
|
Packit |
aea12f |
fail("server: EtM was not negotiated with %s!\n", prio);
|
|
Packit |
aea12f |
exit(1);
|
|
Packit |
aea12f |
} else if (etm == 0 && ((gnutls_session_get_flags(session) & GNUTLS_SFLAGS_ETM) != 0)) {
|
|
Packit |
aea12f |
fail("server: EtM was negotiated with %s!\n", prio);
|
|
Packit |
aea12f |
exit(1);
|
|
Packit |
aea12f |
}
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
if (debug)
|
|
Packit |
aea12f |
success("server: Handshake was completed\n");
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
if (debug)
|
|
Packit |
aea12f |
success("server: TLS version is: %s\n",
|
|
Packit |
aea12f |
gnutls_protocol_get_name
|
|
Packit |
aea12f |
(gnutls_protocol_get_version(session)));
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
do {
|
|
Packit |
aea12f |
do {
|
|
Packit |
aea12f |
ret =
|
|
Packit |
aea12f |
gnutls_record_send(session, buffer,
|
|
Packit |
aea12f |
sizeof(buffer));
|
|
Packit |
aea12f |
} while (ret == GNUTLS_E_AGAIN
|
|
Packit |
aea12f |
|| ret == GNUTLS_E_INTERRUPTED);
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
if (ret < 0) {
|
|
Packit |
aea12f |
fail("Error sending %d byte packet: %s\n", to_send,
|
|
Packit |
aea12f |
gnutls_strerror(ret));
|
|
Packit |
aea12f |
terminate();
|
|
Packit |
aea12f |
}
|
|
Packit |
aea12f |
to_send++;
|
|
Packit |
aea12f |
}
|
|
Packit |
aea12f |
while (to_send < 64);
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
to_send = -1;
|
|
Packit |
aea12f |
/* do not wait for the peer to close the connection.
|
|
Packit |
aea12f |
*/
|
|
Packit |
aea12f |
gnutls_bye(session, GNUTLS_SHUT_WR);
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
close(fd);
|
|
Packit |
aea12f |
gnutls_deinit(session);
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
gnutls_anon_free_server_credentials(anoncred);
|
|
Packit |
aea12f |
gnutls_certificate_free_credentials(x509_cred);
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
gnutls_global_deinit();
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
if (debug)
|
|
Packit |
aea12f |
success("server: finished\n");
|
|
Packit |
aea12f |
}
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
static void start(const char *prio, unsigned etm)
|
|
Packit |
aea12f |
{
|
|
Packit |
aea12f |
int fd[2];
|
|
Packit |
aea12f |
int ret;
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fd);
|
|
Packit |
aea12f |
if (ret < 0) {
|
|
Packit |
aea12f |
perror("socketpair");
|
|
Packit |
aea12f |
exit(1);
|
|
Packit |
aea12f |
}
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
child = fork();
|
|
Packit |
aea12f |
if (child < 0) {
|
|
Packit |
aea12f |
perror("fork");
|
|
Packit |
aea12f |
fail("fork");
|
|
Packit |
aea12f |
exit(1);
|
|
Packit |
aea12f |
}
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
if (child) {
|
|
Packit |
aea12f |
/* parent */
|
|
Packit |
aea12f |
close(fd[1]);
|
|
Packit |
aea12f |
server(fd[0], prio, etm);
|
|
Packit |
aea12f |
kill(child, SIGTERM);
|
|
Packit |
aea12f |
} else {
|
|
Packit |
aea12f |
close(fd[0]);
|
|
Packit |
aea12f |
client(fd[1], prio, etm);
|
|
Packit |
aea12f |
exit(0);
|
|
Packit |
aea12f |
}
|
|
Packit |
aea12f |
}
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
#define AES_CBC "NONE:+VERS-TLS1.0:-CIPHER-ALL:+AES-128-CBC:+SHA1:+SIGN-ALL:+COMP-ALL:+ANON-ECDH:+CURVE-ALL"
|
|
Packit |
aea12f |
#define AES_CBC_SHA256 "NONE:+VERS-TLS1.2:-CIPHER-ALL:+RSA:+AES-128-CBC:+AES-256-CBC:+SHA256:+SIGN-ALL:+COMP-ALL:+ANON-ECDH:+CURVE-ALL"
|
|
Packit |
aea12f |
#define AES_GCM "NONE:+VERS-TLS1.2:-CIPHER-ALL:+RSA:+AES-128-GCM:+MAC-ALL:+SIGN-ALL:+COMP-ALL:+ANON-ECDH:+CURVE-ALL"
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
static void ch_handler(int sig)
|
|
Packit |
aea12f |
{
|
|
Packit |
aea12f |
int status;
|
|
Packit |
aea12f |
wait(&status);
|
|
Packit |
aea12f |
check_wait_status(status);
|
|
Packit |
aea12f |
return;
|
|
Packit |
aea12f |
}
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
void doit(void)
|
|
Packit |
aea12f |
{
|
|
Packit |
aea12f |
signal(SIGCHLD, ch_handler);
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
start(AES_CBC, 1);
|
|
Packit |
aea12f |
start(AES_CBC_SHA256, 1);
|
|
Packit |
aea12f |
start(AES_GCM, 0);
|
|
Packit |
aea12f |
}
|
|
Packit |
aea12f |
|
|
Packit |
aea12f |
#endif /* _WIN32 */
|