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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, 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 "utils.h"
#include "eagain-common.h"
/* This test checks whether the client switching certificates is detected
* by the server */
const char *side;
static void tls_log_func(int level, const char *str)
{
fprintf(stderr, "%s|<%d>| %s", side, level, str);
}
#include "cert-common.h"
#define SENT 0
#define NOT_SENT 1
enum {
INCORRECT_CA_FORCE = 0,
INCORRECT_CA = 1,
CORRECT_CA = 2,
NO_CA = 3
};
static void try(const char *prio, unsigned expect, unsigned ca_type)
{
int ret;
/* Server stuff. */
gnutls_certificate_credentials_t serverx509cred;
gnutls_dh_params_t dh_params;
const gnutls_datum_t p3 = { (unsigned char *)pkcs3, strlen(pkcs3) };
gnutls_session_t server;
int sret = GNUTLS_E_AGAIN;
/* Client stuff. */
gnutls_certificate_credentials_t clientx509cred;
unsigned flags = 0;
gnutls_session_t client;
int cret = GNUTLS_E_AGAIN;
/* General init. */
gnutls_global_set_log_function(tls_log_func);
if (debug)
gnutls_global_set_log_level(6);
/* Init server */
gnutls_certificate_allocate_credentials(&serverx509cred);
gnutls_certificate_set_x509_key_mem(serverx509cred,
&server_ca3_cert_chain,
&server_ca3_key,
GNUTLS_X509_FMT_PEM);
gnutls_dh_params_init(&dh_params);
gnutls_dh_params_import_pkcs3(dh_params, &p3, GNUTLS_X509_FMT_PEM);
gnutls_certificate_set_dh_params(serverx509cred, dh_params);
gnutls_init(&server, GNUTLS_SERVER);
gnutls_certificate_server_set_request(server, GNUTLS_CERT_REQUEST);
if (ca_type == CORRECT_CA) {
ret = gnutls_certificate_set_x509_trust_mem(
serverx509cred, &ca3_cert, GNUTLS_X509_FMT_PEM);
} else if (ca_type == INCORRECT_CA || ca_type == INCORRECT_CA_FORCE) {
ret = gnutls_certificate_set_x509_trust_mem(
serverx509cred, &unknown_ca_cert, GNUTLS_X509_FMT_PEM);
} else if (ca_type == NO_CA) {
ret = 0;
} else {
abort();
}
ret = 0;
if (ret < 0)
exit(1);
gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE, serverx509cred);
assert(gnutls_priority_set_direct(server, prio, 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 */
ret = gnutls_certificate_allocate_credentials(&clientx509cred);
if (ret < 0)
exit(1);
ret = gnutls_certificate_set_x509_key_mem(clientx509cred,
&cli_ca3_cert_chain,
&cli_ca3_key,
GNUTLS_X509_FMT_PEM);
if (ret < 0)
exit(1);
ret = gnutls_certificate_set_x509_trust_mem(clientx509cred, &ca3_cert,
GNUTLS_X509_FMT_PEM);
if (ret < 0)
exit(1);
if (ca_type == INCORRECT_CA_FORCE) {
flags |= GNUTLS_FORCE_CLIENT_CERT;
}
ret = gnutls_init(&client, GNUTLS_CLIENT | flags);
if (ret < 0)
exit(1);
ret = gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE,
clientx509cred);
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);
success("Testing CA type %d, expecting %s\n", ca_type,
expect == SENT ? "sent" : "not sent");
HANDSHAKE(client, server);
if (expect == SENT) {
if (gnutls_certificate_get_ours(client) == NULL) {
fail("Test %d: client didn't send any certificate\n",
ca_type);
exit(1);
}
} else {
if (gnutls_certificate_get_ours(client) != NULL) {
fail("Test %d: client sent a certificate, although not expected\n",
ca_type);
exit(1);
}
}
gnutls_deinit(client);
gnutls_deinit(server);
gnutls_certificate_free_credentials(serverx509cred);
gnutls_certificate_free_credentials(clientx509cred);
gnutls_dh_params_deinit(dh_params);
}
static void start(const char *prio)
{
global_init();
success("trying %s\n", prio);
try(prio, SENT, NO_CA);
try(prio, SENT, CORRECT_CA);
try(prio, NOT_SENT, INCORRECT_CA);
try(prio, SENT, INCORRECT_CA_FORCE);
gnutls_global_deinit();
}
void doit(void)
{
start("NORMAL:-VERS-ALL:+VERS-TLS1.2");
start("NORMAL:-VERS-ALL:+VERS-TLS1.3");
start("NORMAL");
}
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