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/*
* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file is distributed
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
#include <stdint.h>
#include "api/s2n.h"
#include "s2n_test.h"
#include "tls/s2n_connection.h"
#include "tls/s2n_tls.h"
#include "utils/s2n_safety.h"
int main(int argc, char **argv)
{
BEGIN_TEST();
EXPECT_SUCCESS(s2n_disable_tls13_in_test());
/* Test s2n_send_empty_cert_chain */
{
struct s2n_stuffer out = { 0 };
/* Magic number 3 is the length of the certificate_length field */
EXPECT_SUCCESS(s2n_stuffer_alloc(&out, 3));
EXPECT_SUCCESS(s2n_send_empty_cert_chain(&out));
EXPECT_EQUAL(s2n_stuffer_data_available(&out), 3);
uint32_t cert_len;
EXPECT_SUCCESS(s2n_stuffer_read_uint24(&out, &cert_len));
EXPECT_EQUAL(cert_len, 0);
EXPECT_SUCCESS(s2n_stuffer_free(&out));
};
/* Client sends the empty cert when no client default chain and key */
{
struct s2n_config *client_config;
EXPECT_NOT_NULL(client_config = s2n_config_new());
struct s2n_connection *client_conn;
EXPECT_NOT_NULL(client_conn = s2n_connection_new(S2N_CLIENT));
EXPECT_SUCCESS(s2n_connection_set_config(client_conn, client_config));
EXPECT_SUCCESS(s2n_connection_set_client_auth_type(client_conn, S2N_CERT_AUTH_OPTIONAL));
/* client send empty cert */
EXPECT_SUCCESS(s2n_client_cert_send(client_conn));
/* verify post-conditions */
EXPECT_TRUE(client_conn->handshake.handshake_type & NO_CLIENT_CERT);
/* Magic number 3 is the length of the certificate_length field */
EXPECT_EQUAL(s2n_stuffer_data_available(&client_conn->handshake.io), 3);
uint32_t cert_len;
EXPECT_SUCCESS(s2n_stuffer_read_uint24(&client_conn->handshake.io, &cert_len));
EXPECT_EQUAL(cert_len, 0);
EXPECT_SUCCESS(s2n_connection_free(client_conn));
EXPECT_SUCCESS(s2n_config_free(client_config));
};
/* Client fails to send empty cert when S2N_CERT_AUTH_REQUIRED */
{
struct s2n_config *client_config;
EXPECT_NOT_NULL(client_config = s2n_config_new());
struct s2n_connection *client_conn;
EXPECT_NOT_NULL(client_conn = s2n_connection_new(S2N_CLIENT));
EXPECT_SUCCESS(s2n_connection_set_config(client_conn, client_config));
EXPECT_SUCCESS(s2n_connection_set_client_auth_type(client_conn, S2N_CERT_AUTH_REQUIRED));
/* client send empty cert */
EXPECT_FAILURE(s2n_client_cert_send(client_conn));
EXPECT_SUCCESS(s2n_connection_free(client_conn));
EXPECT_SUCCESS(s2n_config_free(client_config));
};
/* Server receives empty cert */
{
struct s2n_config *config;
EXPECT_NOT_NULL(config = s2n_config_new());
struct s2n_connection *client_conn;
EXPECT_NOT_NULL(client_conn = s2n_connection_new(S2N_CLIENT));
EXPECT_SUCCESS(s2n_connection_set_config(client_conn, config));
EXPECT_SUCCESS(s2n_connection_set_client_auth_type(client_conn, S2N_CERT_AUTH_OPTIONAL));
struct s2n_connection *server_conn;
EXPECT_NOT_NULL(server_conn = s2n_connection_new(S2N_SERVER));
EXPECT_SUCCESS(s2n_connection_set_config(server_conn, config));
EXPECT_SUCCESS(s2n_connection_set_client_auth_type(server_conn, S2N_CERT_AUTH_OPTIONAL));
/* client send empty cert */
EXPECT_SUCCESS(s2n_client_cert_send(client_conn));
EXPECT_TRUE(client_conn->handshake.handshake_type & NO_CLIENT_CERT);
/* Magic number 3 is the length of the certificate_length field */
EXPECT_EQUAL(s2n_stuffer_data_available(&client_conn->handshake.io), 3);
EXPECT_SUCCESS(s2n_stuffer_copy(&client_conn->handshake.io, &server_conn->handshake.io, s2n_stuffer_data_available(&client_conn->handshake.io)));
EXPECT_EQUAL(s2n_stuffer_data_available(&server_conn->handshake.io), 3);
/* server receives empty cert */
EXPECT_SUCCESS(s2n_client_cert_recv(server_conn));
EXPECT_TRUE(server_conn->handshake.handshake_type & NO_CLIENT_CERT);
EXPECT_SUCCESS(s2n_connection_free(server_conn));
EXPECT_SUCCESS(s2n_connection_free(client_conn));
EXPECT_SUCCESS(s2n_config_free(config));
};
END_TEST();
}
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