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/*
* Copyright (C) 2008-2012 Free Software Foundation, Inc.
* Copyright (C) 2018 Red Hat, Inc.
*
* Author: Simon Josefsson, Nikos Mavrogiannopoulos
*
* 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 Lesser General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <assert.h>
#include <gnutls/gnutls.h>
#include "cert-common.h"
#include "utils.h"
#include "eagain-common.h"
/* This program tests whether setting a new priority string
* with TLS1.3 enabled on a running TLS1.2 session will
* not prohibit or affect a following rehandshake.
*
* Seen in https://bugzilla.redhat.com/show_bug.cgi?id=1634736
*/
static void tls_log_func(int level, const char *str)
{
fprintf(stderr, "<%d>| %s", level, str);
}
#define MAX_REHANDSHAKES 16
static void test_rehandshake(void)
{
/* Server stuff. */
gnutls_certificate_credentials_t serverx509cred;
gnutls_session_t server;
int sret = GNUTLS_E_AGAIN;
/* Client stuff. */
gnutls_certificate_credentials_t clientx509cred;
gnutls_session_t client;
int cret = GNUTLS_E_AGAIN;
unsigned i;
reset_buffers();
assert(gnutls_global_init() >= 0);
gnutls_global_set_log_function(tls_log_func);
/* Init server */
assert(gnutls_certificate_allocate_credentials(&serverx509cred) >= 0);
assert(gnutls_certificate_set_x509_key_mem(serverx509cred, &server_cert,
&server_key,
GNUTLS_X509_FMT_PEM) >= 0);
assert(gnutls_init(&server, GNUTLS_SERVER) >= 0);
assert(gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE,
serverx509cred) >= 0);
assert(gnutls_priority_set_direct(
server, "NORMAL:-VERS-TLS-ALL:+VERS-TLS1.1:+VERS-TLS1.2",
NULL) >= 0);
gnutls_transport_set_push_function(server, server_push);
gnutls_transport_set_pull_function(server, server_pull);
gnutls_transport_set_ptr(server, server);
/* Init client */
assert(gnutls_certificate_allocate_credentials(&clientx509cred) >= 0);
assert(gnutls_init(&client, GNUTLS_CLIENT) >= 0);
assert(gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE,
clientx509cred) >= 0);
assert(gnutls_priority_set_direct(
client, "NORMAL:-VERS-TLS-ALL:+VERS-TLS1.1:+VERS-TLS1.2",
NULL) >= 0);
gnutls_transport_set_push_function(client, client_push);
gnutls_transport_set_pull_function(client, client_pull);
gnutls_transport_set_ptr(client, client);
HANDSHAKE(client, server);
{
ssize_t n;
char b[1];
for (i = 0; i < MAX_REHANDSHAKES; i++) {
sret = gnutls_rehandshake(server);
n = gnutls_record_recv(client, b, 1);
assert(n == GNUTLS_E_REHANDSHAKE);
/* includes TLS1.3 */
assert(gnutls_priority_set_direct(client, "NORMAL",
NULL) >= 0);
HANDSHAKE(client, server);
}
}
gnutls_bye(client, GNUTLS_SHUT_RDWR);
gnutls_bye(server, GNUTLS_SHUT_RDWR);
gnutls_deinit(client);
gnutls_deinit(server);
gnutls_certificate_free_credentials(serverx509cred);
gnutls_certificate_free_credentials(clientx509cred);
gnutls_global_deinit();
}
void doit(void)
{
test_rehandshake();
}
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