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/*
* Copyright (C) 2016 Red Hat, Inc.
*
* Author: 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 General Public License
* along with GnuTLS; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#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 "utils.h"
#include "eagain-common.h"
#include "cert-common.h"
const char *side;
static void tls_log_func(int level, const char *str)
{
fprintf(stderr, "%s|<%d>| %s", side, level, str);
}
#define TESTDATA "xxxtesttest1234"
/* counts the number of calls of send_testdata() within a handshake */
static int counter = 0;
static int send_testdata(gnutls_session_t session)
{
if (counter == 0) {
counter++;
return gnutls_record_send(session, TESTDATA, sizeof(TESTDATA)-1);
} else {
fail("send_testdata was called more than once!\n");
return GNUTLS_E_INVALID_REQUEST;
}
}
static void try(unsigned fs, const char *prio, unsigned dhsize)
{
int ret;
/* Server stuff. */
gnutls_certificate_credentials_t serverx509cred;
gnutls_anon_client_credentials_t clientanoncred;
gnutls_anon_server_credentials_t serveranoncred;
gnutls_session_t server;
int sret = GNUTLS_E_AGAIN;
char buffer[512];
/* Client stuff. */
gnutls_certificate_credentials_t clientx509cred;
gnutls_session_t client;
int cret = GNUTLS_E_AGAIN;
const gnutls_datum_t p3_2048 = { (void *) pkcs3_2048, strlen(pkcs3_2048) };
const gnutls_datum_t p3_3072 = { (void *) pkcs3_3072, strlen(pkcs3_3072) };
gnutls_dh_params_t dh_params;
/* General init. */
gnutls_global_set_log_function(tls_log_func);
if (debug)
gnutls_global_set_log_level(6);
gnutls_dh_params_init(&dh_params);
if (dhsize < 3072) {
ret = gnutls_dh_params_import_pkcs3(dh_params, &p3_2048,
GNUTLS_X509_FMT_PEM);
} else {
ret = gnutls_dh_params_import_pkcs3(dh_params, &p3_3072,
GNUTLS_X509_FMT_PEM);
}
/* Init server */
gnutls_anon_allocate_server_credentials(&serveranoncred);
gnutls_anon_set_server_dh_params(serveranoncred, dh_params);
gnutls_certificate_allocate_credentials(&serverx509cred);
gnutls_certificate_set_x509_key_mem(serverx509cred,
&server_cert, &server_key,
GNUTLS_X509_FMT_PEM);
gnutls_certificate_set_x509_key_mem(serverx509cred,
&server_ecc_cert, &server_ecc_key,
GNUTLS_X509_FMT_PEM);
gnutls_certificate_set_dh_params(serverx509cred, dh_params);
gnutls_init(&server, GNUTLS_SERVER);
gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE,
serverx509cred);
gnutls_credentials_set(server, GNUTLS_CRD_ANON,
serveranoncred);
gnutls_priority_set_direct(server,
prio,
NULL);
gnutls_transport_set_push_function(server, server_push);
gnutls_transport_set_pull_function(server, server_pull);
gnutls_transport_set_ptr(server, server);
/* Init client */
gnutls_anon_allocate_client_credentials(&clientanoncred);
ret = gnutls_certificate_allocate_credentials(&clientx509cred);
if (ret < 0)
exit(1);
ret = gnutls_certificate_set_x509_trust_mem(clientx509cred, &ca_cert, GNUTLS_X509_FMT_PEM);
if (ret < 0)
exit(1);
ret = gnutls_init(&client, GNUTLS_CLIENT);
if (ret < 0)
exit(1);
ret = gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE,
clientx509cred);
if (ret < 0)
exit(1);
ret = gnutls_credentials_set(client, GNUTLS_CRD_ANON,
clientanoncred);
if (ret < 0)
exit(1);
ret = gnutls_priority_set_direct(client, prio, NULL);
if (ret < 0)
exit(1);
gnutls_transport_set_push_function(client, client_push);
gnutls_transport_set_pull_function(client, client_pull);
gnutls_transport_set_ptr(client, client);
ret = gnutls_handshake_set_false_start_function(server, send_testdata, 0);
if (ret != GNUTLS_E_INVALID_REQUEST) {
fail("gnutls_handshake_set_appdata: unexpected error code (%d) for server!\n", ret);
}
ret = gnutls_handshake_set_false_start_function(client, send_testdata, 0);
if (ret != 0) {
fail("gnutls_handshake_set_appdata: unexpected error code (%d) for client!\n", ret);
}
HANDSHAKE(client, server);
/* verify whether the server received the expected data */
ret = gnutls_record_recv(server, buffer, sizeof(buffer));
if (ret < 0) {
fail("error receiving data: %s\n", gnutls_strerror(ret));
}
if (ret != sizeof(TESTDATA)-1) {
fail("error in received data size\n");
}
if (memcmp(buffer, TESTDATA, ret) != 0) {
fail("error in received data\n");
}
if ((gnutls_session_get_flags(client) & GNUTLS_SFLAGS_FALSE_START) && !fs) {
fail("false start occurred but not expected\n");
}
if (!(gnutls_session_get_flags(client) & GNUTLS_SFLAGS_FALSE_START) && fs) {
fail("false start expected but not happened\n");
}
ret = gnutls_bye(server, GNUTLS_SHUT_WR);
if (ret < 0) {
fail("error in server bye: %s\n", gnutls_strerror(ret));
}
ret = gnutls_bye(client, GNUTLS_SHUT_RDWR);
if (ret < 0) {
fail("error in client bye: %s\n", gnutls_strerror(ret));
}
gnutls_deinit(client);
gnutls_deinit(server);
gnutls_dh_params_deinit(dh_params);
gnutls_anon_free_server_credentials(serveranoncred);
gnutls_anon_free_client_credentials(clientanoncred);
gnutls_certificate_free_credentials(serverx509cred);
gnutls_certificate_free_credentials(clientx509cred);
}
void doit(void)
{
global_init();
try(0, "NORMAL:-KX-ALL:+ANON-DH", 3072);
reset_buffers();
counter = 0;
try(0, "NORMAL:-KX-ALL:+ANON-ECDH", 2048);
reset_buffers();
counter = 0;
try(1, "NORMAL:-KX-ALL:+ECDHE-RSA", 2048);
reset_buffers();
counter = 0;
try(1, "NORMAL:-KX-ALL:+ECDHE-ECDSA", 2048);
reset_buffers();
counter = 0;
try(0, "NORMAL:-KX-ALL:+DHE-RSA", 2048);
reset_buffers();
counter = 0;
try(1, "NORMAL:-KX-ALL:+DHE-RSA", 3072);
reset_buffers();
counter = 0;
gnutls_global_deinit();
}
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