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/*
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549fdc |
* Copyright (C) 2016 Red Hat, 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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549fdc |
* under the terms of the GNU General Public License as published by
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549fdc |
* the Free Software Foundation; either version 3 of the License, or
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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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549fdc |
* General Public License for more details.
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549fdc |
*
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549fdc |
* You should have received a copy of the GNU General Public License
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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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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)
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549fdc |
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549fdc |
int main()
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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 |
#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 |
#include <signal.h>
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549fdc |
#include "cert-common.h"
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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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549fdc |
/* This program tests that a client cannot send any unencrypted data
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549fdc |
* during the handshake process. That is to ensure we protect buggy clients
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549fdc |
* from receiving unauthenticated data over the wire.
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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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static int handshake_callback(gnutls_session_t session, unsigned int htype,
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unsigned post, unsigned int incoming, const gnutls_datum_t *msg)
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{
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549fdc |
int ret;
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549fdc |
char c = 0;
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549fdc |
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if (htype == GNUTLS_HANDSHAKE_FINISHED)
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return 0;
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549fdc |
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549fdc |
gnutls_record_set_timeout(session, 10*1000);
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549fdc |
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/* sending */
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ret = gnutls_record_recv(session, &c, 1);
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549fdc |
if (ret != GNUTLS_E_UNAVAILABLE_DURING_HANDSHAKE) {
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549fdc |
fail("gnutls_record_recv returned %s/%d at %s\n", gnutls_strerror(ret), ret, gnutls_handshake_description_get_name(htype));
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549fdc |
} else {
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549fdc |
success("expected behavior after %s\n", gnutls_handshake_description_get_name(htype));
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549fdc |
}
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549fdc |
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549fdc |
gnutls_record_set_timeout(session, 0);
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549fdc |
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549fdc |
return 0;
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549fdc |
}
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549fdc |
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549fdc |
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549fdc |
#define MAX_BUF 1024
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549fdc |
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549fdc |
static void client(int fd)
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549fdc |
{
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549fdc |
int ret;
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549fdc |
char buffer[MAX_BUF + 1];
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549fdc |
gnutls_certificate_credentials_t x509_cred;
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549fdc |
gnutls_session_t session;
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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(7);
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549fdc |
}
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549fdc |
gnutls_certificate_allocate_credentials(&x509_cred);
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/* Initialize TLS session
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*/
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549fdc |
gnutls_init(&session, GNUTLS_CLIENT);
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549fdc |
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549fdc |
/* Use default priorities */
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gnutls_priority_set_direct(session, "NORMAL:-KX-ALL:+ECDHE-RSA", NULL);
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gnutls_handshake_set_hook_function(session, GNUTLS_HANDSHAKE_ANY,
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GNUTLS_HOOK_PRE,
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handshake_callback);
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gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, x509_cred);
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gnutls_transport_set_int(session, fd);
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/* Perform the TLS handshake
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*/
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do {
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549fdc |
ret = gnutls_handshake(session);
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549fdc |
}
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while (ret < 0 && gnutls_error_is_fatal(ret) == 0);
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if (ret == GNUTLS_E_UNSUPPORTED_SIGNATURE_ALGORITHM) {
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/* success */
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549fdc |
goto end;
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549fdc |
}
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549fdc |
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549fdc |
if (ret < 0) {
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549fdc |
fail("client: Handshake failed: %s\n", gnutls_strerror(ret));
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549fdc |
terminate();
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549fdc |
} else {
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549fdc |
if (debug)
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Packit |
549fdc |
success("client: Handshake was completed\n");
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549fdc |
}
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549fdc |
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549fdc |
if (debug)
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549fdc |
success("client: TLS version is: %s\n",
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549fdc |
gnutls_protocol_get_name
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549fdc |
(gnutls_protocol_get_version(session)));
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549fdc |
do {
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549fdc |
do {
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549fdc |
ret = gnutls_record_recv(session, buffer, MAX_BUF);
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Packit |
549fdc |
} while (ret == GNUTLS_E_AGAIN
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549fdc |
|| ret == GNUTLS_E_INTERRUPTED);
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Packit |
549fdc |
} while (ret > 0);
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549fdc |
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549fdc |
if (ret == 0) {
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549fdc |
if (debug)
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549fdc |
success
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549fdc |
("client: Peer has closed the TLS connection\n");
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549fdc |
goto end;
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549fdc |
} else if (ret < 0) {
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549fdc |
fail("client: Error: %s\n", gnutls_strerror(ret));
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549fdc |
terminate();
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549fdc |
}
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549fdc |
gnutls_bye(session, GNUTLS_SHUT_WR);
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549fdc |
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549fdc |
end:
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549fdc |
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549fdc |
close(fd);
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549fdc |
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Packit |
549fdc |
gnutls_deinit(session);
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549fdc |
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Packit |
549fdc |
gnutls_certificate_free_credentials(x509_cred);
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Packit |
549fdc |
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Packit |
549fdc |
gnutls_global_deinit();
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549fdc |
}
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549fdc |
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549fdc |
|
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Packit |
549fdc |
/* These are global */
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549fdc |
pid_t child;
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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 |
kill(child, SIGTERM);
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Packit |
549fdc |
exit(1);
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Packit |
549fdc |
}
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549fdc |
|
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549fdc |
static void server(int fd)
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549fdc |
{
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549fdc |
int ret;
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549fdc |
char buffer[MAX_BUF + 1];
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Packit |
549fdc |
gnutls_session_t session;
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Packit |
549fdc |
gnutls_certificate_credentials_t x509_cred;
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549fdc |
|
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Packit |
549fdc |
/* this must be called once in the program
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549fdc |
*/
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549fdc |
global_init();
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549fdc |
memset(buffer, 0, sizeof(buffer));
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549fdc |
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Packit |
549fdc |
if (debug) {
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Packit |
549fdc |
gnutls_global_set_log_function(server_log_func);
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Packit |
549fdc |
gnutls_global_set_log_level(4711);
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Packit |
549fdc |
}
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549fdc |
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549fdc |
gnutls_certificate_allocate_credentials(&x509_cred);
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549fdc |
gnutls_certificate_set_x509_key_mem(x509_cred, &server_cert,
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Packit |
549fdc |
&server_key,
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549fdc |
GNUTLS_X509_FMT_PEM);
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549fdc |
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Packit |
549fdc |
gnutls_init(&session, GNUTLS_SERVER);
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549fdc |
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549fdc |
/* avoid calling all the priority functions, since the defaults
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549fdc |
* are adequate.
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549fdc |
*/
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549fdc |
gnutls_priority_set_direct(session, "NORMAL", NULL);
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549fdc |
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549fdc |
gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, x509_cred);
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549fdc |
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549fdc |
gnutls_transport_set_int(session, fd);
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549fdc |
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549fdc |
do {
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549fdc |
ret = gnutls_handshake(session);
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Packit |
549fdc |
} while (ret < 0 && gnutls_error_is_fatal(ret) == 0);
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Packit |
549fdc |
if (ret < 0) {
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Packit |
549fdc |
/* failure is expected here */
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Packit |
549fdc |
goto end;
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549fdc |
}
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Packit |
549fdc |
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549fdc |
if (debug) {
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549fdc |
success("server: Handshake was completed\n");
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549fdc |
}
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549fdc |
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Packit |
549fdc |
if (debug)
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549fdc |
success("server: TLS version is: %s\n",
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Packit |
549fdc |
gnutls_protocol_get_name
|
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Packit |
549fdc |
(gnutls_protocol_get_version(session)));
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Packit |
549fdc |
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549fdc |
/* do not wait for the peer to close the connection.
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549fdc |
*/
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Packit |
549fdc |
gnutls_bye(session, GNUTLS_SHUT_WR);
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549fdc |
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Packit |
549fdc |
end:
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549fdc |
close(fd);
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Packit |
549fdc |
gnutls_deinit(session);
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Packit |
549fdc |
|
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Packit |
549fdc |
gnutls_certificate_free_credentials(x509_cred);
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Packit |
549fdc |
|
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Packit |
549fdc |
gnutls_global_deinit();
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549fdc |
|
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Packit |
549fdc |
if (debug)
|
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Packit |
549fdc |
success("server: finished\n");
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Packit |
549fdc |
}
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549fdc |
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549fdc |
static void ch_handler(int sig)
|
|
Packit |
549fdc |
{
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Packit |
549fdc |
return;
|
|
Packit |
549fdc |
}
|
|
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549fdc |
|
|
Packit |
549fdc |
void doit(void)
|
|
Packit |
549fdc |
{
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|
Packit |
549fdc |
int fd[2];
|
|
Packit |
549fdc |
int ret, status = 0;
|
|
Packit |
549fdc |
|
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Packit |
549fdc |
signal(SIGCHLD, ch_handler);
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|
Packit |
549fdc |
signal(SIGPIPE, SIG_IGN);
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|
Packit |
549fdc |
|
|
Packit |
549fdc |
ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fd);
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|
Packit |
549fdc |
if (ret < 0) {
|
|
Packit |
549fdc |
perror("socketpair");
|
|
Packit |
549fdc |
exit(1);
|
|
Packit |
549fdc |
}
|
|
Packit |
549fdc |
|
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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 |
/* parent */
|
|
Packit |
549fdc |
close(fd[1]);
|
|
Packit |
549fdc |
client(fd[0]);
|
|
Packit |
549fdc |
waitpid(child, &status, 0);
|
|
Packit |
549fdc |
check_wait_status(status);
|
|
Packit |
549fdc |
} else {
|
|
Packit |
549fdc |
close(fd[0]);
|
|
Packit |
549fdc |
server(fd[1]);
|
|
Packit |
549fdc |
exit(0);
|
|
Packit |
549fdc |
}
|
|
Packit |
549fdc |
}
|
|
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549fdc |
|
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Packit |
549fdc |
#endif /* _WIN32 */
|