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/*
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* Copyright (C) 2016 Red Hat, Inc.
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*
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* Author: Nikos Mavrogiannopoulos
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*
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* This file is part of GnuTLS.
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*
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4684c1 |
* GnuTLS is free software; you can redistribute it and/or modify it
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4684c1 |
* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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4684c1 |
* (at your option) any later version.
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*
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* GnuTLS is distributed in the hope that it will be useful, but
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4684c1 |
* WITHOUT ANY WARRANTY; without even the implied warranty of
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4684c1 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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4684c1 |
* General Public License for more details.
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4684c1 |
*
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4684c1 |
* You should have received a copy of the GNU General Public License
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4684c1 |
* along with GnuTLS; if not, write to the Free Software Foundation,
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4684c1 |
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#if defined(_WIN32)
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4684c1 |
int main()
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4684c1 |
{
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exit(77);
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4684c1 |
}
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#else
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#include <string.h>
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#include <sys/types.h>
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#include <netinet/in.h>
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4684c1 |
#include <sys/socket.h>
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#include <sys/wait.h>
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#include <arpa/inet.h>
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#include <unistd.h>
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#include <gnutls/gnutls.h>
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#include <gnutls/dtls.h>
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#include <signal.h>
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#include <assert.h>
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#include "cert-common.h"
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#include "utils.h"
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static void terminate(void);
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/* This program tests that a client cannot send any unencrypted data
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* during the handshake process. That is to ensure we protect buggy clients
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* from receiving unauthenticated data over the wire.
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*/
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static void server_log_func(int level, const char *str)
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4684c1 |
{
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fprintf(stderr, "server|<%d>| %s", level, str);
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}
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static void client_log_func(int level, const char *str)
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{
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fprintf(stderr, "client|<%d>| %s", level, str);
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}
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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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int ret;
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4684c1 |
char c = 0;
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if (htype == GNUTLS_HANDSHAKE_FINISHED)
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return 0;
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gnutls_record_set_timeout(session, 10*1000);
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/* sending */
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4684c1 |
ret = gnutls_record_recv(session, &c, 1);
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4684c1 |
if (ret != GNUTLS_E_UNAVAILABLE_DURING_HANDSHAKE) {
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fail("gnutls_record_recv returned %s/%d at %s\n", gnutls_strerror(ret), ret, gnutls_handshake_description_get_name(htype));
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} else {
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success("expected behavior after %s\n", gnutls_handshake_description_get_name(htype));
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}
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gnutls_record_set_timeout(session, 0);
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return 0;
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4684c1 |
}
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#define MAX_BUF 1024
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4684c1 |
static void client(int fd, const char *prio)
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4684c1 |
{
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4684c1 |
int ret;
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4684c1 |
char buffer[MAX_BUF + 1];
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4684c1 |
gnutls_certificate_credentials_t x509_cred;
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4684c1 |
gnutls_session_t session;
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/* Need to enable anonymous KX specifically. */
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global_init();
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if (debug) {
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gnutls_global_set_log_function(client_log_func);
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gnutls_global_set_log_level(7);
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}
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gnutls_certificate_allocate_credentials(&x509_cred);
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/* Initialize TLS session
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*/
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assert(gnutls_init(&session, GNUTLS_CLIENT)>=0);
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assert(gnutls_priority_set_direct(session, prio, NULL)>=0);
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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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ret = gnutls_handshake(session);
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}
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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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4684c1 |
/* success */
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4684c1 |
goto end;
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4684c1 |
}
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4684c1 |
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4684c1 |
if (ret < 0) {
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4684c1 |
fail("client: Handshake failed: %s\n", gnutls_strerror(ret));
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4684c1 |
terminate();
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4684c1 |
} else {
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4684c1 |
if (debug)
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4684c1 |
success("client: Handshake was completed\n");
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4684c1 |
}
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4684c1 |
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4684c1 |
if (debug)
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4684c1 |
success("client: TLS version is: %s\n",
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4684c1 |
gnutls_protocol_get_name
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4684c1 |
(gnutls_protocol_get_version(session)));
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4684c1 |
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4684c1 |
do {
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4684c1 |
do {
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4684c1 |
ret = gnutls_record_recv(session, buffer, MAX_BUF);
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4684c1 |
} while (ret == GNUTLS_E_AGAIN
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4684c1 |
|| ret == GNUTLS_E_INTERRUPTED);
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Packit Service |
4684c1 |
} while (ret > 0);
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4684c1 |
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4684c1 |
if (ret == 0) {
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4684c1 |
if (debug)
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4684c1 |
success
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4684c1 |
("client: Peer has closed the TLS connection\n");
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Packit Service |
4684c1 |
goto end;
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4684c1 |
} else if (ret < 0) {
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Packit Service |
4684c1 |
fail("client: Error: %s\n", gnutls_strerror(ret));
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Packit Service |
4684c1 |
terminate();
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Packit Service |
4684c1 |
}
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4684c1 |
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4684c1 |
gnutls_bye(session, GNUTLS_SHUT_WR);
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4684c1 |
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4684c1 |
end:
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4684c1 |
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4684c1 |
close(fd);
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4684c1 |
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4684c1 |
gnutls_deinit(session);
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4684c1 |
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Packit Service |
4684c1 |
gnutls_certificate_free_credentials(x509_cred);
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Packit Service |
4684c1 |
|
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Packit Service |
4684c1 |
gnutls_global_deinit();
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4684c1 |
}
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4684c1 |
|
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Packit Service |
4684c1 |
|
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Packit Service |
4684c1 |
/* These are global */
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Packit Service |
4684c1 |
pid_t child;
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4684c1 |
|
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Packit Service |
4684c1 |
static void terminate(void)
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4684c1 |
{
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Packit Service |
4684c1 |
kill(child, SIGTERM);
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Packit Service |
4684c1 |
exit(1);
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|
Packit Service |
4684c1 |
}
|
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4684c1 |
|
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Packit Service |
4684c1 |
static void server(int fd, const char *prio)
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Packit Service |
4684c1 |
{
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Packit Service |
4684c1 |
int ret;
|
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Packit Service |
4684c1 |
char buffer[MAX_BUF + 1];
|
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Packit Service |
4684c1 |
gnutls_session_t session;
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Packit Service |
4684c1 |
gnutls_certificate_credentials_t x509_cred;
|
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Packit Service |
4684c1 |
|
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Packit Service |
4684c1 |
/* this must be called once in the program
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|
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4684c1 |
*/
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Packit Service |
4684c1 |
global_init();
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Packit Service |
4684c1 |
memset(buffer, 0, sizeof(buffer));
|
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Packit Service |
4684c1 |
|
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Packit Service |
4684c1 |
if (debug) {
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Packit Service |
4684c1 |
gnutls_global_set_log_function(server_log_func);
|
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Packit Service |
4684c1 |
gnutls_global_set_log_level(4711);
|
|
Packit Service |
4684c1 |
}
|
|
Packit Service |
4684c1 |
|
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Packit Service |
4684c1 |
gnutls_certificate_allocate_credentials(&x509_cred);
|
|
Packit Service |
4684c1 |
gnutls_certificate_set_x509_key_mem(x509_cred, &server_cert,
|
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Packit Service |
4684c1 |
&server_key,
|
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Packit Service |
4684c1 |
GNUTLS_X509_FMT_PEM);
|
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Packit Service |
4684c1 |
|
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Packit Service |
4684c1 |
assert(gnutls_init(&session, GNUTLS_SERVER)>=0);
|
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4684c1 |
|
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4684c1 |
/* avoid calling all the priority functions, since the defaults
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Packit Service |
4684c1 |
* are adequate.
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Packit Service |
4684c1 |
*/
|
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Packit Service |
4684c1 |
assert(gnutls_priority_set_direct(session, prio, NULL)>=0);
|
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Packit Service |
4684c1 |
|
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Packit Service |
4684c1 |
gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, x509_cred);
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Packit Service |
4684c1 |
|
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Packit Service |
4684c1 |
gnutls_transport_set_int(session, fd);
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4684c1 |
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Packit Service |
4684c1 |
do {
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Packit Service |
4684c1 |
ret = gnutls_handshake(session);
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|
Packit Service |
4684c1 |
} while (ret < 0 && gnutls_error_is_fatal(ret) == 0);
|
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Packit Service |
4684c1 |
if (ret < 0) {
|
|
Packit Service |
4684c1 |
/* failure is expected here */
|
|
Packit Service |
4684c1 |
goto end;
|
|
Packit Service |
4684c1 |
}
|
|
Packit Service |
4684c1 |
|
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Packit Service |
4684c1 |
if (debug) {
|
|
Packit Service |
4684c1 |
success("server: Handshake was completed\n");
|
|
Packit Service |
4684c1 |
}
|
|
Packit Service |
4684c1 |
|
|
Packit Service |
4684c1 |
if (debug)
|
|
Packit Service |
4684c1 |
success("server: TLS version is: %s\n",
|
|
Packit Service |
4684c1 |
gnutls_protocol_get_name
|
|
Packit Service |
4684c1 |
(gnutls_protocol_get_version(session)));
|
|
Packit Service |
4684c1 |
|
|
Packit Service |
4684c1 |
/* do not wait for the peer to close the connection.
|
|
Packit Service |
4684c1 |
*/
|
|
Packit Service |
4684c1 |
gnutls_bye(session, GNUTLS_SHUT_WR);
|
|
Packit Service |
4684c1 |
|
|
Packit Service |
4684c1 |
end:
|
|
Packit Service |
4684c1 |
close(fd);
|
|
Packit Service |
4684c1 |
gnutls_deinit(session);
|
|
Packit Service |
4684c1 |
|
|
Packit Service |
4684c1 |
gnutls_certificate_free_credentials(x509_cred);
|
|
Packit Service |
4684c1 |
|
|
Packit Service |
4684c1 |
gnutls_global_deinit();
|
|
Packit Service |
4684c1 |
|
|
Packit Service |
4684c1 |
if (debug)
|
|
Packit Service |
4684c1 |
success("server: finished\n");
|
|
Packit Service |
4684c1 |
}
|
|
Packit Service |
4684c1 |
|
|
Packit Service |
4684c1 |
static void ch_handler(int sig)
|
|
Packit Service |
4684c1 |
{
|
|
Packit Service |
4684c1 |
return;
|
|
Packit Service |
4684c1 |
}
|
|
Packit Service |
4684c1 |
|
|
Packit Service |
4684c1 |
static
|
|
Packit Service |
4684c1 |
void start(const char *prio)
|
|
Packit Service |
4684c1 |
{
|
|
Packit Service |
4684c1 |
int fd[2];
|
|
Packit Service |
4684c1 |
int ret, status = 0;
|
|
Packit Service |
4684c1 |
|
|
Packit Service |
4684c1 |
success("trying %s\n", prio);
|
|
Packit Service |
4684c1 |
signal(SIGCHLD, ch_handler);
|
|
Packit Service |
4684c1 |
signal(SIGPIPE, SIG_IGN);
|
|
Packit Service |
4684c1 |
|
|
Packit Service |
4684c1 |
ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fd);
|
|
Packit Service |
4684c1 |
if (ret < 0) {
|
|
Packit Service |
4684c1 |
perror("socketpair");
|
|
Packit Service |
4684c1 |
exit(1);
|
|
Packit Service |
4684c1 |
}
|
|
Packit Service |
4684c1 |
|
|
Packit Service |
4684c1 |
child = fork();
|
|
Packit Service |
4684c1 |
if (child < 0) {
|
|
Packit Service |
4684c1 |
perror("fork");
|
|
Packit Service |
4684c1 |
fail("fork");
|
|
Packit Service |
4684c1 |
exit(1);
|
|
Packit Service |
4684c1 |
}
|
|
Packit Service |
4684c1 |
|
|
Packit Service |
4684c1 |
if (child) {
|
|
Packit Service |
4684c1 |
/* parent */
|
|
Packit Service |
4684c1 |
close(fd[1]);
|
|
Packit Service |
4684c1 |
client(fd[0], prio);
|
|
Packit Service |
4684c1 |
waitpid(child, &status, 0);
|
|
Packit Service |
4684c1 |
check_wait_status(status);
|
|
Packit Service |
4684c1 |
} else {
|
|
Packit Service |
4684c1 |
close(fd[0]);
|
|
Packit Service |
4684c1 |
server(fd[1], prio);
|
|
Packit Service |
4684c1 |
exit(0);
|
|
Packit Service |
4684c1 |
}
|
|
Packit Service |
4684c1 |
}
|
|
Packit Service |
4684c1 |
|
|
Packit Service |
4684c1 |
void doit(void)
|
|
Packit Service |
4684c1 |
{
|
|
Packit Service |
4684c1 |
start("NORMAL:-VERS-ALL:+VERS-TLS1.2");
|
|
Packit Service |
4684c1 |
start("NORMAL:-VERS-ALL:+VERS-TLS1.3");
|
|
Packit Service |
4684c1 |
start("NORMAL");
|
|
Packit Service |
4684c1 |
}
|
|
Packit Service |
4684c1 |
|
|
Packit Service |
4684c1 |
#endif /* _WIN32 */
|