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/*
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* Copyright (C) 2008-2012 Free Software Foundation, Inc.
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* Copyright (C) 2018 Red Hat, Inc.
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*
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* Author: Simon Josefsson, Nikos Mavrogiannopoulos
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*
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* This file is part of GnuTLS.
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*
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* GnuTLS is free software; you can redistribute it and/or modify it
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* 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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* (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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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>
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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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#include <string.h>
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#include <errno.h>
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#include <gnutls/gnutls.h>
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#include <gnutls/crypto.h>
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#define RANDOMIZE
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#include "cert-common.h"
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#include "cmocka-common.h"
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/* This tests operation under non-blocking mode in TLS1.2/TLS1.3
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* as well as operation under TLS1.2 re-handshake.
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*/
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static void tls_log_func(int level, const char *str)
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{
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fprintf(stderr, "<%d>| %s", level, str);
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}
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#define MAX_BUF 1024
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#define MSG "Hello TLS, and hi and how are you and more data here... and more... and even more and even more more data..."
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static void async_handshake(void **glob_state, const char *prio, unsigned rehsk)
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{
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/* Server stuff. */
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gnutls_certificate_credentials_t serverx509cred;
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gnutls_session_t server;
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int sret, cret;
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/* Client stuff. */
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gnutls_certificate_credentials_t clientx509cred;
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gnutls_session_t client;
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/* Need to enable anonymous KX specifically. */
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char buffer[MAX_BUF + 1];
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int ret, transferred = 0, msglen;
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/* General init. */
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reset_buffers();
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gnutls_global_init();
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gnutls_global_set_log_function(tls_log_func);
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/* Init server */
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assert_return_code(gnutls_certificate_allocate_credentials(&serverx509cred), 0);
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assert_return_code(gnutls_certificate_set_x509_key_mem(serverx509cred,
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&server_cert, &server_key,
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GNUTLS_X509_FMT_PEM), 0);
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ret = gnutls_init(&server, GNUTLS_SERVER);
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assert_return_code(ret, 0);
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ret =
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gnutls_priority_set_direct(server,
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prio,
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NULL);
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assert_return_code(ret, 0);
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ret = gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE, serverx509cred);
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assert_return_code(ret, 0);
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gnutls_transport_set_push_function(server, server_push);
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gnutls_transport_set_pull_function(server, server_pull);
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gnutls_transport_set_ptr(server, server);
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/* Init client */
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ret = gnutls_certificate_allocate_credentials(&clientx509cred);
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assert_return_code(ret, 0);
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ret = gnutls_init(&client, GNUTLS_CLIENT);
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ret =
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gnutls_priority_set_direct(client,
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prio,
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NULL);
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assert_return_code(ret, 0);
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ret = gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE, clientx509cred);
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assert_return_code(ret, 0);
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gnutls_transport_set_push_function(client, client_push);
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gnutls_transport_set_pull_function(client, client_pull);
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gnutls_transport_set_ptr(client, client);
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HANDSHAKE(client, server);
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if (rehsk == 1 || rehsk == 3) {
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ssize_t n;
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char b[1];
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do {
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sret = gnutls_rehandshake(server);
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} while (sret == GNUTLS_E_AGAIN);
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do {
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n = gnutls_record_recv(client, b, 1);
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} while(n == GNUTLS_E_AGAIN);
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assert_int_equal(n, GNUTLS_E_REHANDSHAKE);
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if (rehsk == 3) {
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/* client sends app data and the server ignores them */
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do {
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cret = gnutls_record_send(client, "x", 1);
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} while (cret == GNUTLS_E_AGAIN);
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do {
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sret = gnutls_handshake(server);
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} while (sret == GNUTLS_E_AGAIN);
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assert_int_equal(sret, GNUTLS_E_GOT_APPLICATION_DATA);
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do {
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n = gnutls_record_recv(server, buffer, sizeof(buffer));
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} while(n == GNUTLS_E_AGAIN);
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}
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HANDSHAKE(client, server);
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} else if (rehsk == 2) {
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HANDSHAKE(client, server);
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}
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msglen = strlen(MSG);
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TRANSFER(client, server, MSG, msglen, buffer, MAX_BUF);
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gnutls_bye(client, GNUTLS_SHUT_WR);
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gnutls_bye(server, GNUTLS_SHUT_WR);
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gnutls_deinit(client);
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gnutls_deinit(server);
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gnutls_certificate_free_credentials(serverx509cred);
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gnutls_certificate_free_credentials(clientx509cred);
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gnutls_global_deinit();
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}
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static void tls12_async_handshake(void **glob_state)
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{
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async_handshake(glob_state, "NORMAL:-VERS-ALL:+VERS-TLS1.2", 0);
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}
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static void tls12_async_rehandshake_client(void **glob_state)
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{
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async_handshake(glob_state, "NORMAL:-VERS-ALL:+VERS-TLS1.2", 1);
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}
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static void tls12_async_rehandshake_server(void **glob_state)
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{
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async_handshake(glob_state, "NORMAL:-VERS-ALL:+VERS-TLS1.2", 2);
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}
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static void tls12_async_rehandshake_server_appdata(void **glob_state)
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{
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async_handshake(glob_state, "NORMAL:-VERS-ALL:+VERS-TLS1.2", 3);
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}
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static void tls13_async_handshake(void **glob_state)
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{
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async_handshake(glob_state, "NORMAL:-VERS-ALL:+VERS-TLS1.3", 0);
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}
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int main(void)
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{
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const struct CMUnitTest tests[] = {
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cmocka_unit_test(tls12_async_handshake),
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cmocka_unit_test(tls12_async_rehandshake_client),
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cmocka_unit_test(tls12_async_rehandshake_server),
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cmocka_unit_test(tls12_async_rehandshake_server_appdata),
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cmocka_unit_test(tls13_async_handshake),
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};
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return cmocka_run_group_tests(tests, NULL, NULL);
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}
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