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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 "crypto/s2n_rsa_signing.h"
#include "s2n_test.h"
#include "testlib/s2n_testlib.h"
#include "tls/s2n_key_log.h"
static int s2n_test_key_log_cb(void *context, struct s2n_connection *conn,
uint8_t *logline, size_t len)
{
struct s2n_stuffer *stuffer = (struct s2n_stuffer *) context;
POSIX_GUARD(s2n_stuffer_write_bytes(stuffer, logline, len));
POSIX_GUARD(s2n_stuffer_write_uint8(stuffer, '\n'));
return S2N_SUCCESS;
}
S2N_RESULT s2n_test_check_tls12(struct s2n_stuffer *stuffer)
{
size_t len = s2n_stuffer_data_available(stuffer);
RESULT_ENSURE_GT(len, 0);
char *out = (char *) s2n_stuffer_raw_read(stuffer, len);
RESULT_ENSURE_REF(out);
/**
* rather than writing a full parser, we'll just make sure it at least
* wrote the labels we would expect for TLS 1.2
*/
RESULT_ENSURE_REF(strstr(out, "CLIENT_RANDOM "));
return S2N_RESULT_OK;
}
S2N_RESULT s2n_test_check_tls13(struct s2n_stuffer *stuffer)
{
size_t len = s2n_stuffer_data_available(stuffer);
RESULT_ENSURE_GT(len, 0);
char *out = (char *) s2n_stuffer_raw_read(stuffer, len);
RESULT_ENSURE_REF(out);
/**
* rather than writing a full parser, we'll just make sure it at least
* wrote the labels we would expect for TLS 1.3
*/
RESULT_ENSURE_REF(strstr(out, "CLIENT_HANDSHAKE_TRAFFIC_SECRET "));
RESULT_ENSURE_REF(strstr(out, "SERVER_HANDSHAKE_TRAFFIC_SECRET "));
RESULT_ENSURE_REF(strstr(out, "CLIENT_TRAFFIC_SECRET_0 "));
RESULT_ENSURE_REF(strstr(out, "SERVER_TRAFFIC_SECRET_0 "));
RESULT_ENSURE_REF(strstr(out, "EXPORTER_SECRET "));
return S2N_RESULT_OK;
}
int main(int argc, char **argv)
{
BEGIN_TEST();
/* TLS 1.2 */
{
/* Setup connections */
struct s2n_connection *client_conn = NULL, *server_conn = NULL;
EXPECT_NOT_NULL(client_conn = s2n_connection_new(S2N_CLIENT));
EXPECT_NOT_NULL(server_conn = s2n_connection_new(S2N_SERVER));
/* Setup config */
struct s2n_cert_chain_and_key *chain_and_key = NULL;
EXPECT_SUCCESS(s2n_test_cert_chain_and_key_new(&chain_and_key,
S2N_DEFAULT_TEST_CERT_CHAIN, S2N_DEFAULT_TEST_PRIVATE_KEY));
struct s2n_config *client_config = NULL;
EXPECT_NOT_NULL(client_config = s2n_config_new());
EXPECT_SUCCESS(s2n_config_set_cipher_preferences(client_config, "20240501"));
EXPECT_SUCCESS(s2n_config_set_unsafe_for_testing(client_config));
EXPECT_SUCCESS(s2n_config_add_cert_chain_and_key_to_store(client_config, chain_and_key));
DEFER_CLEANUP(struct s2n_stuffer client_key_log, s2n_stuffer_free);
EXPECT_SUCCESS(s2n_stuffer_growable_alloc(&client_key_log, 1024));
EXPECT_SUCCESS(s2n_config_set_key_log_cb(client_config, s2n_test_key_log_cb, &client_key_log));
EXPECT_SUCCESS(s2n_connection_set_config(client_conn, client_config));
struct s2n_config *server_config = NULL;
EXPECT_NOT_NULL(server_config = s2n_config_new());
EXPECT_SUCCESS(s2n_config_set_cipher_preferences(server_config, "20240501"));
EXPECT_SUCCESS(s2n_config_set_unsafe_for_testing(server_config));
EXPECT_SUCCESS(s2n_config_add_cert_chain_and_key_to_store(server_config, chain_and_key));
DEFER_CLEANUP(struct s2n_stuffer server_key_log, s2n_stuffer_free);
EXPECT_SUCCESS(s2n_stuffer_growable_alloc(&server_key_log, 1024));
EXPECT_SUCCESS(s2n_config_set_key_log_cb(server_config, s2n_test_key_log_cb, &server_key_log));
EXPECT_SUCCESS(s2n_connection_set_config(server_conn, server_config));
/* Create nonblocking pipes */
struct s2n_test_io_pair io_pair;
EXPECT_SUCCESS(s2n_io_pair_init_non_blocking(&io_pair));
EXPECT_SUCCESS(s2n_connection_set_io_pair(client_conn, &io_pair));
EXPECT_SUCCESS(s2n_connection_set_io_pair(server_conn, &io_pair));
/* Do handshake */
EXPECT_SUCCESS(s2n_negotiate_test_server_and_client(server_conn, client_conn));
EXPECT_OK(s2n_test_check_tls12(&client_key_log));
EXPECT_OK(s2n_test_check_tls12(&server_key_log));
EXPECT_SUCCESS(s2n_connection_free(server_conn));
EXPECT_SUCCESS(s2n_connection_free(client_conn));
EXPECT_SUCCESS(s2n_io_pair_close(&io_pair));
EXPECT_SUCCESS(s2n_cert_chain_and_key_free(chain_and_key));
EXPECT_SUCCESS(s2n_config_free(server_config));
EXPECT_SUCCESS(s2n_config_free(client_config));
};
/* TLS 1.3 */
if (s2n_is_tls13_fully_supported()) {
/* Setup connections */
struct s2n_connection *client_conn = NULL, *server_conn = NULL;
EXPECT_NOT_NULL(client_conn = s2n_connection_new(S2N_CLIENT));
EXPECT_NOT_NULL(server_conn = s2n_connection_new(S2N_SERVER));
/* Setup config */
struct s2n_cert_chain_and_key *chain_and_key = NULL;
EXPECT_SUCCESS(s2n_test_cert_chain_and_key_new(&chain_and_key,
S2N_DEFAULT_ECDSA_TEST_CERT_CHAIN, S2N_DEFAULT_ECDSA_TEST_PRIVATE_KEY));
struct s2n_config *client_config = NULL;
EXPECT_NOT_NULL(client_config = s2n_config_new());
EXPECT_SUCCESS(s2n_config_set_cipher_preferences(client_config, "default_tls13"));
EXPECT_SUCCESS(s2n_config_set_unsafe_for_testing(client_config));
EXPECT_SUCCESS(s2n_config_add_cert_chain_and_key_to_store(client_config, chain_and_key));
DEFER_CLEANUP(struct s2n_stuffer client_key_log, s2n_stuffer_free);
EXPECT_SUCCESS(s2n_stuffer_growable_alloc(&client_key_log, 1024));
EXPECT_SUCCESS(s2n_config_set_key_log_cb(client_config, s2n_test_key_log_cb, &client_key_log));
EXPECT_SUCCESS(s2n_connection_set_config(client_conn, client_config));
struct s2n_config *server_config = NULL;
EXPECT_NOT_NULL(server_config = s2n_config_new());
EXPECT_SUCCESS(s2n_config_set_cipher_preferences(server_config, "default_tls13"));
EXPECT_SUCCESS(s2n_config_set_unsafe_for_testing(server_config));
EXPECT_SUCCESS(s2n_config_add_cert_chain_and_key_to_store(server_config, chain_and_key));
DEFER_CLEANUP(struct s2n_stuffer server_key_log, s2n_stuffer_free);
EXPECT_SUCCESS(s2n_stuffer_growable_alloc(&server_key_log, 1024));
EXPECT_SUCCESS(s2n_config_set_key_log_cb(server_config, s2n_test_key_log_cb, &server_key_log));
EXPECT_SUCCESS(s2n_connection_set_config(server_conn, server_config));
/* Create nonblocking pipes */
struct s2n_test_io_pair io_pair;
EXPECT_SUCCESS(s2n_io_pair_init_non_blocking(&io_pair));
EXPECT_SUCCESS(s2n_connection_set_io_pair(client_conn, &io_pair));
EXPECT_SUCCESS(s2n_connection_set_io_pair(server_conn, &io_pair));
/* Do handshake */
EXPECT_SUCCESS(s2n_negotiate_test_server_and_client(server_conn, client_conn));
EXPECT_OK(s2n_test_check_tls13(&client_key_log));
EXPECT_OK(s2n_test_check_tls13(&server_key_log));
EXPECT_SUCCESS(s2n_connection_free(server_conn));
EXPECT_SUCCESS(s2n_connection_free(client_conn));
EXPECT_SUCCESS(s2n_io_pair_close(&io_pair));
EXPECT_SUCCESS(s2n_cert_chain_and_key_free(chain_and_key));
EXPECT_SUCCESS(s2n_config_free(server_config));
EXPECT_SUCCESS(s2n_config_free(client_config));
}
/* Hex encoding function inverse pair */
{
uint8_t bytes[256] = { 0 };
for (size_t idx = 0; idx < sizeof(bytes); idx++) {
bytes[idx] = (uint8_t) idx;
}
DEFER_CLEANUP(struct s2n_stuffer encoded, s2n_stuffer_free);
EXPECT_SUCCESS(s2n_stuffer_alloc(&encoded, sizeof(bytes) * 2));
struct s2n_blob raw_bytes = { 0 };
EXPECT_SUCCESS(s2n_blob_init(&raw_bytes, bytes, sizeof(bytes)));
EXPECT_OK(s2n_stuffer_write_hex(&encoded, &raw_bytes));
DEFER_CLEANUP(struct s2n_blob decoded = { 0 }, s2n_free);
EXPECT_SUCCESS(s2n_alloc(&decoded, sizeof(bytes)));
EXPECT_OK(s2n_stuffer_read_hex(&encoded, &decoded));
EXPECT_BYTEARRAY_EQUAL(decoded.data, bytes, sizeof(bytes));
};
END_TEST();
}
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