/*
* Copyright (C) 2008-2012 Free Software Foundation, Inc.
* Copyright (C) 2017 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 <assert.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);
}
static time_t mytime(time_t * t)
{
time_t then = 1490171562;
if (t)
*t = then;
return then;
}
/* A unit test for GNUTLS_DT_IP_ADDRESS option of
* gnutls_certificate_verify_peers().
*/
void doit(void)
{
int ret;
/* 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;
gnutls_typed_vdata_st data[2];
gnutls_datum_t t;
unsigned status;
/* General init. */
global_init();
gnutls_global_set_log_function(tls_log_func);
if (debug)
gnutls_global_set_log_level(6);
gnutls_global_set_time_function(mytime);
/* Init server */
assert(gnutls_certificate_allocate_credentials(&serverx509cred)>=0);
ret = gnutls_certificate_set_x509_key_mem(serverx509cred,
&server_ca3_ipaddr_cert, &server_ca3_key,
GNUTLS_X509_FMT_PEM);
if (ret < 0) {
fail("could not import cert: %s\n", gnutls_strerror(ret));
}
assert(gnutls_init(&server, GNUTLS_SERVER)>=0);
gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE,
serverx509cred);
assert(gnutls_set_default_priority(server)>=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_trust_mem(clientx509cred, &ca3_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);
assert(gnutls_set_default_priority(client) >= 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);
/* attempt to verify */
{
/* try hostname - which is invalid */
memset(data, 0, sizeof(data));
data[0].type = GNUTLS_DT_DNS_HOSTNAME;
data[0].data = (void*)"localhost1";
data[1].type = GNUTLS_DT_KEY_PURPOSE_OID;
data[1].data = (void*)GNUTLS_KP_TLS_WWW_SERVER;
ret = gnutls_certificate_verify_peers(client, data, 2, &status);
if (ret < 0) {
fail("could not verify certificate: %s\n", gnutls_strerror(ret));
exit(1);
}
if (status == 0) {
fail("should not have accepted!\n");
exit(1);
}
/* try bogus IP */
memset(data, 0, sizeof(data));
data[0].type = GNUTLS_DT_IP_ADDRESS;
data[0].data = (void*)"\x01\x00\x01\x02";
data[0].size = 4;
data[1].type = GNUTLS_DT_KEY_PURPOSE_OID;
data[1].data = (void*)GNUTLS_KP_TLS_WWW_SERVER;
ret = gnutls_certificate_verify_peers(client, data, 2, &status);
if (ret < 0) {
fail("could not verify certificate: %s\n", gnutls_strerror(ret));
exit(1);
}
if (status == 0) {
fail("should not have accepted!\n");
exit(1);
}
/* try correct IP */
memset(data, 0, sizeof(data));
data[0].type = GNUTLS_DT_IP_ADDRESS;
data[0].data = (void*)"\x7f\x00\x00\x01";
data[0].size = 4;
data[1].type = GNUTLS_DT_KEY_PURPOSE_OID;
data[1].data = (void*)GNUTLS_KP_TLS_WWW_SERVER;
ret = gnutls_certificate_verify_peers(client, data, 2, &status);
if (ret < 0) {
fail("could not verify certificate: %s\n", gnutls_strerror(ret));
exit(1);
}
if (status != 0) {
assert(gnutls_certificate_verification_status_print(status, GNUTLS_CRT_X509, &t, 0)>=0);
fail("could not verify: %s/%.4x!\n", t.data, status);
}
/* try the other verification functions */
ret = gnutls_certificate_verify_peers3(client, "127.0.0.1", &status);
if (ret < 0) {
fail("could not verify certificate: %s\n", gnutls_strerror(ret));
exit(1);
}
if (status != 0) {
assert(gnutls_certificate_verification_status_print(status, GNUTLS_CRT_X509, &t, 0)>=0);
fail("could not verify: %s/%.4x!\n", t.data, status);
}
}
{
/* change the flags */
gnutls_certificate_set_verify_flags(clientx509cred, GNUTLS_VERIFY_DO_NOT_ALLOW_IP_MATCHES);
/* now the compatibility option should fail */
ret = gnutls_certificate_verify_peers3(client, "127.0.0.1", &status);
if (ret < 0) {
fail("could not verify certificate: %s\n", gnutls_strerror(ret));
exit(1);
}
if (status == 0) {
fail("should not have accepted!\n");
exit(1);
}
memset(data, 0, sizeof(data));
data[0].type = GNUTLS_DT_DNS_HOSTNAME;
data[0].data = (void*)"127.0.0.1";
data[1].type = GNUTLS_DT_KEY_PURPOSE_OID;
data[1].data = (void*)GNUTLS_KP_TLS_WWW_SERVER;
ret = gnutls_certificate_verify_peers(client, data, 2, &status);
if (ret < 0) {
fail("could not verify certificate: %s\n", gnutls_strerror(ret));
exit(1);
}
if (status == 0) {
fail("should not have accepted!\n");
exit(1);
}
/* try again the right one */
memset(data, 0, sizeof(data));
data[0].type = GNUTLS_DT_IP_ADDRESS;
data[0].data = (void*)"\x7f\x00\x00\x01";
data[0].size = 4;
data[1].type = GNUTLS_DT_KEY_PURPOSE_OID;
data[1].data = (void*)GNUTLS_KP_TLS_WWW_SERVER;
ret = gnutls_certificate_verify_peers(client, data, 2, &status);
if (ret < 0) {
fail("could not verify certificate: %s\n", gnutls_strerror(ret));
exit(1);
}
if (status != 0) {
assert(gnutls_certificate_verification_status_print(status, GNUTLS_CRT_X509, &t, 0)>=0);
fail("could not verify: %s/%.4x!\n", t.data, status);
}
}
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();
}