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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 "s2n_test.h"
#include "tls/s2n_cipher_suites.h"
#include "tls/s2n_connection.h"
#include "tls/s2n_crypto.h"
#include "tls/s2n_tls.h"
int main(int argc, char **argv)
{
BEGIN_TEST();
EXPECT_SUCCESS(s2n_disable_tls13_in_test());
uint8_t empty_finished_array[S2N_TLS_FINISHED_LEN] = { 0 };
/* Test s2n_ccs_send */
{
struct s2n_connection *conn;
EXPECT_NOT_NULL(conn = s2n_connection_new(S2N_CLIENT));
EXPECT_SUCCESS(s2n_ccs_send(conn));
uint8_t result;
EXPECT_SUCCESS(s2n_stuffer_read_uint8(&conn->handshake.io, &result));
/* Always 0x01: https://tools.ietf.org/html/rfc5246#section-7.1 */
EXPECT_EQUAL(result, 0x01);
EXPECT_SUCCESS(s2n_connection_free(conn));
};
/* Test that s2n_basic_ccs_recv can parse the output of s2n_change_cipher_spec_send */
{
struct s2n_connection *conn;
EXPECT_NOT_NULL(conn = s2n_connection_new(S2N_CLIENT));
EXPECT_SUCCESS(s2n_ccs_send(conn));
EXPECT_SUCCESS(s2n_basic_ccs_recv(conn));
EXPECT_SUCCESS(s2n_connection_free(conn));
};
/* Test that s2n_basic_ccs_recv errors on wrong change cipher spec types */
{
struct s2n_connection *conn;
EXPECT_NOT_NULL(conn = s2n_connection_new(S2N_CLIENT));
EXPECT_SUCCESS(s2n_stuffer_write_uint8(&conn->handshake.io, 0));
EXPECT_FAILURE_WITH_ERRNO(s2n_basic_ccs_recv(conn), S2N_ERR_BAD_MESSAGE);
EXPECT_SUCCESS(s2n_connection_free(conn));
};
/* Test that s2n_client_ccs_recv errors on wrong change cipher spec types */
{
struct s2n_connection *conn;
EXPECT_NOT_NULL(conn = s2n_connection_new(S2N_CLIENT));
EXPECT_SUCCESS(s2n_stuffer_write_uint8(&conn->handshake.io, 0));
EXPECT_FAILURE_WITH_ERRNO(s2n_client_ccs_recv(conn), S2N_ERR_BAD_MESSAGE);
EXPECT_SUCCESS(s2n_connection_free(conn));
};
/* Test that s2n_server_ccs_recv errors on wrong change cipher spec types */
{
struct s2n_connection *conn;
EXPECT_NOT_NULL(conn = s2n_connection_new(S2N_SERVER));
EXPECT_SUCCESS(s2n_stuffer_write_uint8(&conn->handshake.io, 0));
EXPECT_FAILURE_WITH_ERRNO(s2n_server_ccs_recv(conn), S2N_ERR_BAD_MESSAGE);
EXPECT_SUCCESS(s2n_connection_free(conn));
};
/* Test s2n_client_ccs_recv */
{
struct s2n_connection *conn;
EXPECT_NOT_NULL(conn = s2n_connection_new(S2N_CLIENT));
/* Needed to not break prf */
conn->secure->cipher_suite = &s2n_ecdhe_rsa_with_aes_256_gcm_sha384;
/* Check preconditions */
conn->secure->client_sequence_number[0] = 1;
EXPECT_BYTEARRAY_EQUAL(&conn->handshake.client_finished, &empty_finished_array, S2N_TLS_FINISHED_LEN);
EXPECT_EQUAL(conn->handshake.finished_len, 0);
EXPECT_NOT_EQUAL(conn->client, conn->secure);
EXPECT_SUCCESS(s2n_stuffer_write_uint8(&conn->alert_in, 1));
EXPECT_SUCCESS(s2n_ccs_send(conn));
EXPECT_SUCCESS(s2n_client_ccs_recv(conn));
/* Check for expected updates */
EXPECT_EQUAL(conn->secure->client_sequence_number[0], 0);
EXPECT_EQUAL(conn->client, conn->secure);
EXPECT_FALSE(s2n_stuffer_data_available(&conn->alert_in));
EXPECT_SUCCESS(s2n_connection_free(conn));
};
/* Test SSLv3 s2n_client_ccs_recv */
{
DEFER_CLEANUP(struct s2n_connection *conn = s2n_connection_new(S2N_CLIENT), s2n_connection_ptr_free);
EXPECT_NOT_NULL(conn);
conn->secure->cipher_suite = &s2n_ecdhe_rsa_with_aes_128_cbc_sha;
conn->actual_protocol_version = S2N_SSLv3;
/* Check preconditions */
conn->secure->client_sequence_number[0] = 1;
EXPECT_BYTEARRAY_EQUAL(&conn->handshake.client_finished, &empty_finished_array, S2N_TLS_FINISHED_LEN);
EXPECT_EQUAL(conn->handshake.finished_len, 0);
EXPECT_NOT_EQUAL(conn->client, conn->secure);
EXPECT_SUCCESS(s2n_stuffer_write_uint8(&conn->alert_in, 1));
EXPECT_SUCCESS(s2n_ccs_send(conn));
EXPECT_SUCCESS(s2n_client_ccs_recv(conn));
/* Check for expected updates */
EXPECT_EQUAL(conn->secure->client_sequence_number[0], 0);
EXPECT_EQUAL(conn->client, conn->secure);
EXPECT_FALSE(s2n_stuffer_data_available(&conn->alert_in));
};
/* Test s2n_server_ccs_recv */
{
struct s2n_connection *conn;
EXPECT_NOT_NULL(conn = s2n_connection_new(S2N_CLIENT));
/* Needed to not break prf */
conn->secure->cipher_suite = &s2n_ecdhe_rsa_with_aes_256_gcm_sha384;
/* Check preconditions */
conn->secure->server_sequence_number[0] = 1;
EXPECT_BYTEARRAY_EQUAL(&conn->handshake.server_finished, &empty_finished_array, S2N_TLS_FINISHED_LEN);
EXPECT_EQUAL(conn->handshake.finished_len, 0);
EXPECT_NOT_EQUAL(conn->server, conn->secure);
EXPECT_SUCCESS(s2n_stuffer_write_uint8(&conn->alert_in, 1));
EXPECT_SUCCESS(s2n_ccs_send(conn));
EXPECT_SUCCESS(s2n_server_ccs_recv(conn));
/* Check for expected updates */
EXPECT_EQUAL(conn->secure->server_sequence_number[0], 0);
EXPECT_BYTEARRAY_NOT_EQUAL(&conn->handshake.server_finished, &empty_finished_array, S2N_TLS_FINISHED_LEN);
EXPECT_EQUAL(conn->handshake.finished_len, S2N_TLS_FINISHED_LEN);
EXPECT_EQUAL(conn->server, conn->secure);
EXPECT_FALSE(s2n_stuffer_data_available(&conn->alert_in));
EXPECT_SUCCESS(s2n_connection_free(conn));
};
/* Test SSLv3 s2n_server_ccs_recv */
{
DEFER_CLEANUP(struct s2n_connection *conn = s2n_connection_new(S2N_SERVER), s2n_connection_ptr_free);
EXPECT_NOT_NULL(conn);
conn->secure->cipher_suite = &s2n_ecdhe_rsa_with_aes_128_cbc_sha;
conn->actual_protocol_version = S2N_SSLv3;
/* Check preconditions */
conn->secure->server_sequence_number[0] = 1;
EXPECT_BYTEARRAY_EQUAL(&conn->handshake.server_finished, &empty_finished_array, S2N_TLS_FINISHED_LEN);
EXPECT_EQUAL(conn->handshake.finished_len, 0);
EXPECT_NOT_EQUAL(conn->server, conn->secure);
EXPECT_SUCCESS(s2n_stuffer_write_uint8(&conn->alert_in, 1));
EXPECT_SUCCESS(s2n_ccs_send(conn));
EXPECT_SUCCESS(s2n_server_ccs_recv(conn));
/* Check for expected updates */
EXPECT_EQUAL(conn->secure->server_sequence_number[0], 0);
EXPECT_BYTEARRAY_NOT_EQUAL(&conn->handshake.server_finished, &empty_finished_array, S2N_TLS_FINISHED_LEN);
EXPECT_EQUAL(conn->handshake.finished_len, S2N_SSL_FINISHED_LEN);
EXPECT_EQUAL(conn->server, conn->secure);
EXPECT_FALSE(s2n_stuffer_data_available(&conn->alert_in));
};
END_TEST();
return 0;
}
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