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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 <gnutls/gnutls.h>
#include "cert-common.h"
#include "cmocka-common.h"
/* This program tests server initiated rehandshake */
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 **glob_state, unsigned appdata)
{
/* 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;
char buffer[64];
int ret;
unsigned i;
/* General init. */
reset_buffers();
ret = gnutls_global_init();
assert_return_code(ret, 0);
gnutls_global_set_log_function(tls_log_func);
/* Init server */
ret = gnutls_certificate_allocate_credentials(&serverx509cred);
assert_return_code(ret, 0);
ret = gnutls_certificate_set_x509_key_mem(
serverx509cred, &server_cert, &server_key, GNUTLS_X509_FMT_PEM);
assert_return_code(ret, 0);
ret = gnutls_init(&server, GNUTLS_SERVER);
assert_return_code(ret, 0);
ret = gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE,
serverx509cred);
assert_return_code(ret, 0);
ret = gnutls_priority_set_direct(
server, "NORMAL:-VERS-TLS-ALL:+VERS-TLS1.1:+VERS-TLS1.2", NULL);
assert_return_code(ret, 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 */
ret = gnutls_certificate_allocate_credentials(&clientx509cred);
assert_return_code(ret, 0);
ret = gnutls_init(&client, GNUTLS_CLIENT);
assert_return_code(ret, 0);
ret = gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE,
clientx509cred);
assert_return_code(ret, 0);
ret = gnutls_priority_set_direct(
client, "NORMAL:-VERS-TLS-ALL:+VERS-TLS1.1:+VERS-TLS1.2", NULL);
assert_return_code(ret, 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);
if (appdata) {
/* send application data prior to handshake */
ssize_t n;
char b[1];
do {
sret = gnutls_rehandshake(server);
} while (sret == GNUTLS_E_AGAIN);
do {
n = gnutls_record_recv(client, b, 1);
} while (n == GNUTLS_E_AGAIN);
assert_int_equal(n, GNUTLS_E_REHANDSHAKE);
/* client sends app data and the server ignores them */
do {
cret = gnutls_record_send(client, "x", 1);
} while (cret == GNUTLS_E_AGAIN);
do {
sret = gnutls_handshake(server);
} while (sret == GNUTLS_E_AGAIN);
assert_int_equal(sret, GNUTLS_E_GOT_APPLICATION_DATA);
do {
n = gnutls_record_recv(server, buffer, sizeof(buffer));
} while (n == GNUTLS_E_AGAIN);
HANDSHAKE(client, server);
} else {
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_int_equal(n, GNUTLS_E_REHANDSHAKE);
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();
}
static void tls12_rehandshake_server(void **glob_state)
{
test_rehandshake(glob_state, 0);
}
static void tls12_rehandshake_server_appdata(void **glob_state)
{
test_rehandshake(glob_state, 1);
}
int main(void)
{
const struct CMUnitTest tests[] = {
cmocka_unit_test(tls12_rehandshake_server),
cmocka_unit_test(tls12_rehandshake_server_appdata),
};
return cmocka_run_group_tests(tests, NULL, NULL);
}
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