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/*
* Copyright (C) 2015 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
/* This program tests the various certificate key exchange methods supported
* in gnutls */
#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 MSG "hello there ppl"
#define USE_CERT 1
#define ASK_CERT 2
static void try(const char *name, const char *client_prio, gnutls_kx_algorithm_t client_kx,
gnutls_sign_algorithm_t server_sign_algo,
gnutls_sign_algorithm_t client_sign_algo,
unsigned client_cert)
{
int ret;
char buffer[256];
/* Server stuff. */
gnutls_certificate_credentials_t serverx509cred;
gnutls_anon_server_credentials_t s_anoncred;
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;
gnutls_anon_client_credentials_t c_anoncred;
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_anon_allocate_server_credentials(&s_anoncred);
gnutls_certificate_allocate_credentials(&serverx509cred);
if (client_kx == GNUTLS_KX_ECDHE_ECDSA) {
gnutls_certificate_set_x509_key_mem(serverx509cred,
&server_ecc_cert, &server_ecc_key,
GNUTLS_X509_FMT_PEM);
} else {
gnutls_certificate_set_x509_key_mem(serverx509cred,
&server_cert, &server_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_anon_set_server_dh_params(s_anoncred, dh_params);
gnutls_init(&server, GNUTLS_SERVER);
gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE,
serverx509cred);
gnutls_credentials_set(server, GNUTLS_CRD_ANON, s_anoncred);
gnutls_priority_set_direct(server,
"NORMAL:+ANON-ECDH:+ANON-DH:+ECDHE-RSA:+DHE-RSA:+RSA:+ECDHE-ECDSA:+CURVE-X25519",
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 */
ret = gnutls_certificate_allocate_credentials(&clientx509cred);
if (ret < 0)
exit(1);
if (client_cert == USE_CERT) {
gnutls_certificate_set_x509_key_mem(clientx509cred,
&cli_cert, &cli_key,
GNUTLS_X509_FMT_PEM);
gnutls_certificate_server_set_request(server, GNUTLS_CERT_REQUIRE);
} else if (client_cert == ASK_CERT) {
gnutls_certificate_server_set_request(server, GNUTLS_CERT_REQUEST);
}
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);
gnutls_anon_allocate_client_credentials(&c_anoncred);
gnutls_credentials_set(client, GNUTLS_CRD_ANON, c_anoncred);
ret = gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE,
clientx509cred);
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_priority_set_direct(client, client_prio, NULL);
if (ret < 0) {
exit(1);
}
HANDSHAKE(client, server);
if (gnutls_kx_get(client) != client_kx) {
fail("%s: got unexpected key exchange algorithm: %s (expected %s)\n", name, gnutls_kx_get_name(gnutls_kx_get(client)),
gnutls_kx_get_name(client_kx));
exit(1);
}
/* test signature algorithm match */
ret = gnutls_sign_algorithm_get(server);
if (ret != (int)server_sign_algo) {
fail("%s: got unexpected server signature algorithm: %d/%s\n", name, ret, gnutls_sign_get_name(ret));
exit(1);
}
ret = gnutls_sign_algorithm_get_client(server);
if (ret != (int)client_sign_algo) {
fail("%s: got unexpected client signature algorithm: %d/%s\n", name, ret, gnutls_sign_get_name(ret));
exit(1);
}
ret = gnutls_sign_algorithm_get(client);
if (ret != (int)server_sign_algo) {
fail("%s: cl: got unexpected server signature algorithm: %d/%s\n", name, ret, gnutls_sign_get_name(ret));
exit(1);
}
ret = gnutls_sign_algorithm_get_client(client);
if (ret != (int)client_sign_algo) {
fail("%s: cl: got unexpected client signature algorithm: %d/%s\n", name, ret, gnutls_sign_get_name(ret));
exit(1);
}
gnutls_record_send(server, MSG, strlen(MSG));
ret = gnutls_record_recv(client, buffer, sizeof(buffer));
if (ret == 0) {
fail("client: Peer has closed the TLS connection\n");
exit(1);
} else if (ret < 0) {
fail("client: Error: %s\n", gnutls_strerror(ret));
exit(1);
}
if (ret != strlen(MSG) || memcmp(MSG, buffer, ret) != 0) {
fail("client: Error in data received. Expected %d, got %d\n", (int)strlen(MSG), ret);
exit(1);
}
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_anon_free_server_credentials(s_anoncred);
gnutls_anon_free_client_credentials(c_anoncred);
gnutls_dh_params_deinit(dh_params);
}
void doit(void)
{
global_init();
try("anon-ecdh", "NORMAL:-KX-ALL:+ANON-ECDH", GNUTLS_KX_ANON_ECDH, GNUTLS_SIGN_UNKNOWN, GNUTLS_SIGN_UNKNOWN, 0);
reset_buffers();
try("anon-dh", "NORMAL:-KX-ALL:+ANON-DH", GNUTLS_KX_ANON_DH, GNUTLS_SIGN_UNKNOWN, GNUTLS_SIGN_UNKNOWN, 0);
reset_buffers();
try("dhe-rsa no cert", "NORMAL:-KX-ALL:+DHE-RSA", GNUTLS_KX_DHE_RSA, GNUTLS_SIGN_RSA_SHA256, GNUTLS_SIGN_UNKNOWN, 0);
reset_buffers();
try("ecdhe x25519 rsa no cert", "NORMAL:-KX-ALL:+ECDHE-RSA:-CURVE-ALL:+CURVE-X25519", GNUTLS_KX_ECDHE_RSA, GNUTLS_SIGN_RSA_SHA256, GNUTLS_SIGN_UNKNOWN, 0);
reset_buffers();
try("ecdhe rsa no cert", "NORMAL:-KX-ALL:+ECDHE-RSA", GNUTLS_KX_ECDHE_RSA, GNUTLS_SIGN_RSA_SHA256, GNUTLS_SIGN_UNKNOWN, 0);
reset_buffers();
try("ecdhe ecdsa no cert", "NORMAL:-KX-ALL:+ECDHE-ECDSA", GNUTLS_KX_ECDHE_ECDSA, GNUTLS_SIGN_ECDSA_SHA256, GNUTLS_SIGN_UNKNOWN, 0);
reset_buffers();
try("rsa no cert", "NORMAL:-KX-ALL:+RSA", GNUTLS_KX_RSA, GNUTLS_SIGN_UNKNOWN, GNUTLS_SIGN_UNKNOWN, 0);
reset_buffers();
try("dhe-rsa cert", "NORMAL:-KX-ALL:+DHE-RSA", GNUTLS_KX_DHE_RSA, GNUTLS_SIGN_RSA_SHA256, GNUTLS_SIGN_RSA_SHA256, USE_CERT);
reset_buffers();
try("ecdhe-rsa cert", "NORMAL:-KX-ALL:+ECDHE-RSA", GNUTLS_KX_ECDHE_RSA, GNUTLS_SIGN_RSA_SHA256, GNUTLS_SIGN_RSA_SHA256, USE_CERT);
reset_buffers();
try("rsa cert", "NORMAL:-KX-ALL:+RSA", GNUTLS_KX_RSA, GNUTLS_SIGN_UNKNOWN, GNUTLS_SIGN_RSA_SHA256, USE_CERT);
reset_buffers();
try("ecdhe ecdsa cert", "NORMAL:-KX-ALL:+ECDHE-ECDSA", GNUTLS_KX_ECDHE_ECDSA, GNUTLS_SIGN_ECDSA_SHA256, GNUTLS_SIGN_RSA_SHA256, USE_CERT);
reset_buffers();
try("dhe-rsa ask cert", "NORMAL:-KX-ALL:+DHE-RSA", GNUTLS_KX_DHE_RSA, GNUTLS_SIGN_RSA_SHA256, GNUTLS_SIGN_UNKNOWN, ASK_CERT);
reset_buffers();
try("ecdhe-rsa ask cert", "NORMAL:-KX-ALL:+ECDHE-RSA", GNUTLS_KX_ECDHE_RSA, GNUTLS_SIGN_RSA_SHA256, GNUTLS_SIGN_UNKNOWN, ASK_CERT);
reset_buffers();
try("rsa ask cert", "NORMAL:-KX-ALL:+RSA", GNUTLS_KX_RSA, GNUTLS_SIGN_UNKNOWN, GNUTLS_SIGN_UNKNOWN, ASK_CERT);
reset_buffers();
try("ecdhe ecdsa cert", "NORMAL:-KX-ALL:+ECDHE-ECDSA", GNUTLS_KX_ECDHE_ECDSA, GNUTLS_SIGN_ECDSA_SHA256, GNUTLS_SIGN_UNKNOWN, ASK_CERT);
reset_buffers();
gnutls_global_deinit();
}
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