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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 <gnutls/crypto.h>
#define RANDOMIZE
#include "cert-common.h"
#include "cmocka-common.h"
/* This tests operation under non-blocking mode in TLS1.2/TLS1.3
* as well as operation under TLS1.2 re-handshake.
*/
static void tls_log_func(int level, const char *str)
{
fprintf(stderr, "<%d>| %s", level, str);
}
#define MAX_BUF 1024
#define MSG "Hello TLS, and hi and how are you and more data here... and more... and even more and even more more data..."
static void async_handshake(void **glob_state, const char *prio, unsigned rehsk)
{
/* Server stuff. */
gnutls_certificate_credentials_t serverx509cred;
gnutls_session_t server;
int sret, cret;
/* Client stuff. */
gnutls_certificate_credentials_t clientx509cred;
gnutls_session_t client;
/* Need to enable anonymous KX specifically. */
char buffer[MAX_BUF + 1];
int ret, transferred = 0, msglen;
/* General init. */
reset_buffers();
gnutls_global_init();
gnutls_global_set_log_function(tls_log_func);
/* Init server */
assert_return_code(gnutls_certificate_allocate_credentials(&serverx509cred), 0);
assert_return_code(gnutls_certificate_set_x509_key_mem(serverx509cred,
&server_cert, &server_key,
GNUTLS_X509_FMT_PEM), 0);
ret = gnutls_init(&server, GNUTLS_SERVER);
assert_return_code(ret, 0);
ret =
gnutls_priority_set_direct(server,
prio,
NULL);
assert_return_code(ret, 0);
ret = gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE, serverx509cred);
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);
ret =
gnutls_priority_set_direct(client,
prio,
NULL);
assert_return_code(ret, 0);
ret = gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE, clientx509cred);
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 (rehsk == 1 || rehsk == 3) {
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);
if (rehsk == 3) {
/* 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 if (rehsk == 2) {
HANDSHAKE(client, server);
}
msglen = strlen(MSG);
TRANSFER(client, server, MSG, msglen, buffer, MAX_BUF);
gnutls_bye(client, GNUTLS_SHUT_WR);
gnutls_bye(server, GNUTLS_SHUT_WR);
gnutls_deinit(client);
gnutls_deinit(server);
gnutls_certificate_free_credentials(serverx509cred);
gnutls_certificate_free_credentials(clientx509cred);
gnutls_global_deinit();
}
static void tls12_async_handshake(void **glob_state)
{
async_handshake(glob_state, "NORMAL:-VERS-ALL:+VERS-TLS1.2", 0);
}
static void tls12_async_rehandshake_client(void **glob_state)
{
async_handshake(glob_state, "NORMAL:-VERS-ALL:+VERS-TLS1.2", 1);
}
static void tls12_async_rehandshake_server(void **glob_state)
{
async_handshake(glob_state, "NORMAL:-VERS-ALL:+VERS-TLS1.2", 2);
}
static void tls12_async_rehandshake_server_appdata(void **glob_state)
{
async_handshake(glob_state, "NORMAL:-VERS-ALL:+VERS-TLS1.2", 3);
}
static void tls13_async_handshake(void **glob_state)
{
async_handshake(glob_state, "NORMAL:-VERS-ALL:+VERS-TLS1.3", 0);
}
int main(void)
{
const struct CMUnitTest tests[] = {
cmocka_unit_test(tls12_async_handshake),
cmocka_unit_test(tls12_async_rehandshake_client),
cmocka_unit_test(tls12_async_rehandshake_server),
cmocka_unit_test(tls12_async_rehandshake_server_appdata),
cmocka_unit_test(tls13_async_handshake),
};
return cmocka_run_group_tests(tests, NULL, NULL);
}
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