/*
* Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL licenses, (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* https://www.openssl.org/source/license.html
* or in the file LICENSE in the source distribution.
*/
#include <stdio.h>
#include <openssl/conf.h>
#include <openssl/err.h>
#include <openssl/ssl.h>
#include "handshake_helper.h"
#include "ssl_test_ctx.h"
#include "testutil.h"
static CONF *conf = NULL;
/* Currently the section names are of the form test-<number>, e.g. test-15. */
#define MAX_TESTCASE_NAME_LENGTH 100
typedef struct ssl_test_ctx_test_fixture {
const char *test_case_name;
char test_app[MAX_TESTCASE_NAME_LENGTH];
} SSL_TEST_FIXTURE;
static SSL_TEST_FIXTURE set_up(const char *const test_case_name)
{
SSL_TEST_FIXTURE fixture;
fixture.test_case_name = test_case_name;
return fixture;
}
static const char *print_alert(int alert)
{
return alert ? SSL_alert_desc_string_long(alert) : "no alert";
}
static int check_result(HANDSHAKE_RESULT result, SSL_TEST_CTX *test_ctx)
{
if (result.result != test_ctx->expected_result) {
fprintf(stderr, "ExpectedResult mismatch: expected %s, got %s.\n",
ssl_test_result_t_name(test_ctx->expected_result),
ssl_test_result_t_name(result.result));
return 0;
}
return 1;
}
static int check_alerts(HANDSHAKE_RESULT result, SSL_TEST_CTX *test_ctx)
{
if (result.client_alert_sent != result.client_alert_received) {
fprintf(stderr, "Client sent alert %s but server received %s\n.",
print_alert(result.client_alert_sent),
print_alert(result.client_alert_received));
/*
* We can't bail here because the peer doesn't always get far enough
* to process a received alert. Specifically, in protocol version
* negotiation tests, we have the following scenario.
* Client supports TLS v1.2 only; Server supports TLS v1.1.
* Client proposes TLS v1.2; server responds with 1.1;
* Client now sends a protocol alert, using TLS v1.2 in the header.
* The server, however, rejects the alert because of version mismatch
* in the record layer; therefore, the server appears to never
* receive the alert.
*/
/* return 0; */
}
if (result.server_alert_sent != result.server_alert_received) {
fprintf(stderr, "Server sent alert %s but client received %s\n.",
print_alert(result.server_alert_sent),
print_alert(result.server_alert_received));
/* return 0; */
}
/* Tolerate an alert if one wasn't explicitly specified in the test. */
if (test_ctx->client_alert
/*
* The info callback alert value is computed as
* (s->s3->send_alert[0] << 8) | s->s3->send_alert[1]
* where the low byte is the alert code and the high byte is other stuff.
*/
&& (result.client_alert_sent & 0xff) != test_ctx->client_alert) {
fprintf(stderr, "ClientAlert mismatch: expected %s, got %s.\n",
print_alert(test_ctx->client_alert),
print_alert(result.client_alert_sent));
return 0;
}
if (test_ctx->server_alert
&& (result.server_alert_sent & 0xff) != test_ctx->server_alert) {
fprintf(stderr, "ServerAlert mismatch: expected %s, got %s.\n",
print_alert(test_ctx->server_alert),
print_alert(result.server_alert_sent));
return 0;
}
return 1;
}
static int check_protocol(HANDSHAKE_RESULT result, SSL_TEST_CTX *test_ctx)
{
if (result.client_protocol != result.server_protocol) {
fprintf(stderr, "Client has protocol %s but server has %s\n.",
ssl_protocol_name(result.client_protocol),
ssl_protocol_name(result.server_protocol));
return 0;
}
if (test_ctx->protocol) {
if (result.client_protocol != test_ctx->protocol) {
fprintf(stderr, "Protocol mismatch: expected %s, got %s.\n",
ssl_protocol_name(test_ctx->protocol),
ssl_protocol_name(result.client_protocol));
return 0;
}
}
return 1;
}
/*
* This could be further simplified by constructing an expected
* HANDSHAKE_RESULT, and implementing comparison methods for
* its fields.
*/
static int check_test(HANDSHAKE_RESULT result, SSL_TEST_CTX *test_ctx)
{
int ret = 1;
ret &= check_result(result, test_ctx);
ret &= check_alerts(result, test_ctx);
if (result.result == SSL_TEST_SUCCESS)
ret &= check_protocol(result, test_ctx);
return ret;
}
static int execute_test(SSL_TEST_FIXTURE fixture)
{
int ret = 0;
SSL_CTX *server_ctx = NULL, *client_ctx = NULL;
SSL_TEST_CTX *test_ctx = NULL;
HANDSHAKE_RESULT result;
server_ctx = SSL_CTX_new(TLS_server_method());
client_ctx = SSL_CTX_new(TLS_client_method());
OPENSSL_assert(server_ctx != NULL && client_ctx != NULL);
OPENSSL_assert(CONF_modules_load(conf, fixture.test_app, 0) > 0);
if (!SSL_CTX_config(server_ctx, "server")
|| !SSL_CTX_config(client_ctx, "client")) {
goto err;
}
test_ctx = SSL_TEST_CTX_create(conf, fixture.test_app);
if (test_ctx == NULL)
goto err;
result = do_handshake(server_ctx, client_ctx);
ret = check_test(result, test_ctx);
err:
CONF_modules_unload(0);
SSL_CTX_free(server_ctx);
SSL_CTX_free(client_ctx);
SSL_TEST_CTX_free(test_ctx);
if (ret != 1)
ERR_print_errors_fp(stderr);
return ret;
}
static void tear_down(SSL_TEST_FIXTURE fixture)
{
}
#define SETUP_SSL_TEST_FIXTURE() \
SETUP_TEST_FIXTURE(SSL_TEST_FIXTURE, set_up)
#define EXECUTE_SSL_TEST() \
EXECUTE_TEST(execute_test, tear_down)
static int test_handshake(int idx)
{
SETUP_SSL_TEST_FIXTURE();
BIO_snprintf(fixture.test_app, sizeof(fixture.test_app),
"test-%d", idx);
EXECUTE_SSL_TEST();
}
int main(int argc, char **argv)
{
int result = 0;
long num_tests;
if (argc != 2)
return 1;
conf = NCONF_new(NULL);
OPENSSL_assert(conf != NULL);
/* argv[1] should point to the test conf file */
OPENSSL_assert(NCONF_load(conf, argv[1], NULL) > 0);
OPENSSL_assert(NCONF_get_number_e(conf, NULL, "num_tests", &num_tests));
ADD_ALL_TESTS(test_handshake, (int)(num_tests));
result = run_tests(argv[0]);
return result;
}
