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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 "testlib/s2n_testlib.h"
#include "tls/extensions/s2n_cert_status.h"
const uint8_t ocsp_data[] = "OCSP DATA";
int s2n_test_enable_sending_extension(struct s2n_connection *conn, struct s2n_cert_chain_and_key *chain_and_key)
{
conn->status_type = S2N_STATUS_REQUEST_OCSP;
conn->handshake_params.our_chain_and_key = chain_and_key;
EXPECT_SUCCESS(s2n_cert_chain_and_key_set_ocsp_data(chain_and_key, ocsp_data, s2n_array_len(ocsp_data)));
conn->x509_validator.state = VALIDATED;
return S2N_SUCCESS;
}
int main(int argc, char **argv)
{
BEGIN_TEST();
DEFER_CLEANUP(struct s2n_cert_chain_and_key *chain_and_key = NULL, s2n_cert_chain_and_key_ptr_free);
EXPECT_SUCCESS(s2n_test_cert_chain_and_key_new(&chain_and_key,
S2N_DEFAULT_TEST_CERT_CHAIN, S2N_DEFAULT_TEST_PRIVATE_KEY));
/* should_send */
{
struct s2n_config *config;
EXPECT_NOT_NULL(config = s2n_config_new());
struct s2n_connection *conn;
EXPECT_NOT_NULL(conn = s2n_connection_new(S2N_CLIENT));
EXPECT_SUCCESS(s2n_connection_set_config(conn, config));
/* Don't send by default */
EXPECT_FALSE(s2n_cert_status_extension.should_send(conn));
/* Send if all prerequisites met */
EXPECT_SUCCESS(s2n_test_enable_sending_extension(conn, chain_and_key));
EXPECT_TRUE(s2n_cert_status_extension.should_send(conn));
/* Send if client */
EXPECT_SUCCESS(s2n_test_enable_sending_extension(conn, chain_and_key));
conn->mode = S2N_CLIENT;
EXPECT_TRUE(s2n_cert_status_extension.should_send(conn));
/* Send if server */
EXPECT_SUCCESS(s2n_test_enable_sending_extension(conn, chain_and_key));
conn->mode = S2N_SERVER;
EXPECT_TRUE(s2n_cert_status_extension.should_send(conn));
/* Don't send if no certificate set */
EXPECT_SUCCESS(s2n_test_enable_sending_extension(conn, chain_and_key));
conn->handshake_params.our_chain_and_key = NULL;
EXPECT_FALSE(s2n_cert_status_extension.should_send(conn));
/* Don't send if no ocsp data */
EXPECT_SUCCESS(s2n_test_enable_sending_extension(conn, chain_and_key));
EXPECT_SUCCESS(s2n_free(&conn->handshake_params.our_chain_and_key->ocsp_status));
EXPECT_FALSE(s2n_cert_status_extension.should_send(conn));
EXPECT_SUCCESS(s2n_connection_free(conn));
EXPECT_SUCCESS(s2n_config_free(config));
};
/* Test send */
{
struct s2n_connection *conn;
EXPECT_NOT_NULL(conn = s2n_connection_new(S2N_SERVER));
EXPECT_SUCCESS(s2n_test_enable_sending_extension(conn, chain_and_key));
struct s2n_stuffer stuffer = { 0 };
EXPECT_SUCCESS(s2n_stuffer_growable_alloc(&stuffer, 0));
EXPECT_SUCCESS(s2n_cert_status_extension.send(conn, &stuffer));
uint8_t request_type;
EXPECT_SUCCESS(s2n_stuffer_read_uint8(&stuffer, &request_type));
EXPECT_EQUAL(request_type, S2N_STATUS_REQUEST_OCSP);
uint32_t ocsp_size;
EXPECT_SUCCESS(s2n_stuffer_read_uint24(&stuffer, &ocsp_size));
EXPECT_EQUAL(ocsp_size, s2n_stuffer_data_available(&stuffer));
EXPECT_EQUAL(ocsp_size, s2n_array_len(ocsp_data));
uint8_t *actual_ocsp_data;
EXPECT_NOT_NULL(actual_ocsp_data = s2n_stuffer_raw_read(&stuffer, ocsp_size));
EXPECT_BYTEARRAY_EQUAL(actual_ocsp_data, ocsp_data, ocsp_size);
EXPECT_EQUAL(s2n_stuffer_data_available(&stuffer), 0);
EXPECT_SUCCESS(s2n_stuffer_free(&stuffer));
EXPECT_SUCCESS(s2n_connection_free(conn));
};
/* Test recv */
{
struct s2n_connection *conn;
EXPECT_NOT_NULL(conn = s2n_connection_new(S2N_SERVER));
EXPECT_SUCCESS(s2n_test_enable_sending_extension(conn, chain_and_key));
struct s2n_stuffer stuffer = { 0 };
EXPECT_SUCCESS(s2n_stuffer_growable_alloc(&stuffer, 0));
EXPECT_SUCCESS(s2n_cert_status_extension.send(conn, &stuffer));
EXPECT_EQUAL(conn->status_response.size, 0);
EXPECT_SUCCESS(s2n_cert_status_extension.recv(conn, &stuffer));
EXPECT_BYTEARRAY_EQUAL(conn->status_response.data, ocsp_data, s2n_array_len(ocsp_data));
EXPECT_EQUAL(s2n_stuffer_data_available(&stuffer), 0);
EXPECT_SUCCESS(s2n_stuffer_free(&stuffer));
EXPECT_SUCCESS(s2n_connection_free(conn));
};
/* Test recv - not ocsp */
{
struct s2n_connection *conn;
EXPECT_NOT_NULL(conn = s2n_connection_new(S2N_SERVER));
EXPECT_SUCCESS(s2n_test_enable_sending_extension(conn, chain_and_key));
struct s2n_stuffer stuffer = { 0 };
EXPECT_SUCCESS(s2n_stuffer_growable_alloc(&stuffer, 0));
EXPECT_SUCCESS(s2n_stuffer_write_uint8(&stuffer, S2N_STATUS_REQUEST_NONE));
EXPECT_EQUAL(conn->status_response.size, 0);
EXPECT_SUCCESS(s2n_cert_status_extension.recv(conn, &stuffer));
EXPECT_EQUAL(conn->status_response.size, 0);
EXPECT_SUCCESS(s2n_stuffer_free(&stuffer));
EXPECT_SUCCESS(s2n_connection_free(conn));
};
/* Test recv - bad ocsp data */
{
struct s2n_connection *conn = s2n_connection_new(S2N_CLIENT);
EXPECT_NOT_NULL(conn);
EXPECT_SUCCESS(s2n_test_enable_sending_extension(conn, chain_and_key));
DEFER_CLEANUP(struct s2n_stuffer stuffer = { 0 }, s2n_stuffer_free);
EXPECT_SUCCESS(s2n_stuffer_growable_alloc(&stuffer, 0));
EXPECT_SUCCESS(s2n_cert_status_extension.send(conn, &stuffer));
if (s2n_x509_ocsp_stapling_supported()) {
EXPECT_FAILURE_WITH_ERRNO(s2n_cert_status_extension.recv(conn, &stuffer),
S2N_ERR_INVALID_OCSP_RESPONSE);
} else {
/* s2n_x509_validator_validate_cert_stapled_ocsp_response returns untrusted error if ocsp is not supported */
EXPECT_FAILURE_WITH_ERRNO(s2n_cert_status_extension.recv(conn, &stuffer),
S2N_ERR_CERT_UNTRUSTED);
}
EXPECT_SUCCESS(s2n_connection_free(conn));
};
/* Self-talk tests */
if (s2n_x509_ocsp_stapling_supported() && s2n_is_tls13_fully_supported()) {
uint8_t ocsp_response[S2N_MAX_TEST_PEM_SIZE] = { 0 };
uint32_t ocsp_response_len = 0;
EXPECT_SUCCESS(s2n_read_test_pem_and_len(S2N_OCSP_RESPONSE_DER, ocsp_response, &ocsp_response_len, S2N_MAX_TEST_PEM_SIZE));
EXPECT_TRUE(ocsp_response_len > 0);
DEFER_CLEANUP(struct s2n_cert_chain_and_key *ocsp_chain_and_key = NULL, s2n_cert_chain_and_key_ptr_free);
EXPECT_SUCCESS(s2n_test_cert_chain_and_key_new(&ocsp_chain_and_key, S2N_OCSP_SERVER_CERT, S2N_OCSP_SERVER_KEY));
EXPECT_SUCCESS(s2n_cert_chain_and_key_set_ocsp_data(ocsp_chain_and_key, ocsp_response, ocsp_response_len));
/* Client requests OCSP staple, and server sends OCSP response */
{
DEFER_CLEANUP(struct s2n_config *client_config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(client_config);
EXPECT_SUCCESS(s2n_config_set_verification_ca_location(client_config, S2N_OCSP_CA_CERT, NULL));
EXPECT_SUCCESS(s2n_config_set_cipher_preferences(client_config, "default_tls13"));
EXPECT_SUCCESS(s2n_config_set_status_request_type(client_config, S2N_STATUS_REQUEST_OCSP));
DEFER_CLEANUP(struct s2n_config *server_config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(server_config);
EXPECT_SUCCESS(s2n_config_add_cert_chain_and_key_to_store(server_config, ocsp_chain_and_key));
EXPECT_SUCCESS(s2n_config_set_cipher_preferences(server_config, "default_tls13"));
DEFER_CLEANUP(struct s2n_connection *server_conn = s2n_connection_new(S2N_SERVER), s2n_connection_ptr_free);
EXPECT_NOT_NULL(server_conn);
EXPECT_SUCCESS(s2n_connection_set_config(server_conn, server_config));
DEFER_CLEANUP(struct s2n_connection *client_conn = s2n_connection_new(S2N_CLIENT), s2n_connection_ptr_free);
EXPECT_NOT_NULL(client_conn);
EXPECT_SUCCESS(s2n_connection_set_config(client_conn, client_config));
EXPECT_SUCCESS(s2n_set_server_name(client_conn, "s2n Test Cert"));
DEFER_CLEANUP(struct s2n_test_io_pair io_pair = { 0 }, s2n_io_pair_close);
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));
EXPECT_SUCCESS(s2n_negotiate_test_server_and_client(server_conn, client_conn));
EXPECT_EQUAL(server_conn->actual_protocol_version, S2N_TLS13);
EXPECT_EQUAL(client_conn->actual_protocol_version, S2N_TLS13);
uint32_t client_received_ocsp_response_len = 0;
const uint8_t *client_received_ocsp_response = s2n_connection_get_ocsp_response(client_conn,
&client_received_ocsp_response_len);
EXPECT_NOT_NULL(client_received_ocsp_response);
uint32_t server_received_ocsp_response_len = 0;
const uint8_t *server_received_ocsp_response = s2n_connection_get_ocsp_response(server_conn,
&server_received_ocsp_response_len);
/* Only the client requested a response, the server should not have received one. */
EXPECT_NULL(server_received_ocsp_response);
/* The server sent an OCSP response, and the client received an OCSP response */
EXPECT_EQUAL(s2n_connection_is_ocsp_stapled(server_conn), 1);
EXPECT_EQUAL(s2n_connection_is_ocsp_stapled(client_conn), 1);
}
/* Server requests OCSP staple, and client sends OCSP response */
{
DEFER_CLEANUP(struct s2n_config *client_config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(client_config);
EXPECT_SUCCESS(s2n_config_set_verification_ca_location(client_config, S2N_OCSP_CA_CERT, NULL));
EXPECT_SUCCESS(s2n_config_set_cipher_preferences(client_config, "default_tls13"));
EXPECT_SUCCESS(s2n_config_set_status_request_type(client_config, S2N_STATUS_REQUEST_NONE));
EXPECT_SUCCESS(s2n_config_set_client_auth_type(client_config, S2N_CERT_AUTH_OPTIONAL));
EXPECT_SUCCESS(s2n_config_add_cert_chain_and_key_to_store(client_config, ocsp_chain_and_key));
DEFER_CLEANUP(struct s2n_config *server_config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(server_config);
EXPECT_SUCCESS(s2n_config_add_cert_chain_and_key_to_store(server_config, ocsp_chain_and_key));
EXPECT_SUCCESS(s2n_config_set_cipher_preferences(server_config, "default_tls13"));
EXPECT_SUCCESS(s2n_config_set_status_request_type(server_config, S2N_STATUS_REQUEST_OCSP));
EXPECT_SUCCESS(s2n_config_set_client_auth_type(server_config, S2N_CERT_AUTH_REQUIRED));
EXPECT_SUCCESS(s2n_config_set_verification_ca_location(server_config, S2N_OCSP_CA_CERT, NULL));
DEFER_CLEANUP(struct s2n_connection *server_conn = s2n_connection_new(S2N_SERVER), s2n_connection_ptr_free);
EXPECT_NOT_NULL(server_conn);
EXPECT_SUCCESS(s2n_connection_set_config(server_conn, server_config));
DEFER_CLEANUP(struct s2n_connection *client_conn = s2n_connection_new(S2N_CLIENT), s2n_connection_ptr_free);
EXPECT_NOT_NULL(client_conn);
EXPECT_SUCCESS(s2n_connection_set_config(client_conn, client_config));
EXPECT_SUCCESS(s2n_set_server_name(client_conn, "s2n Test Cert"));
DEFER_CLEANUP(struct s2n_test_io_pair io_pair = { 0 }, s2n_io_pair_close);
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));
EXPECT_SUCCESS(s2n_negotiate_test_server_and_client(server_conn, client_conn));
EXPECT_EQUAL(server_conn->actual_protocol_version, S2N_TLS13);
EXPECT_EQUAL(client_conn->actual_protocol_version, S2N_TLS13);
uint32_t client_received_ocsp_response_len = 0;
const uint8_t *client_received_ocsp_response = s2n_connection_get_ocsp_response(client_conn,
&client_received_ocsp_response_len);
/* Only the server requested a response, the client should not have received one. */
EXPECT_NULL(client_received_ocsp_response);
uint32_t server_received_ocsp_response_len = 0;
const uint8_t *server_received_ocsp_response = s2n_connection_get_ocsp_response(server_conn,
&server_received_ocsp_response_len);
EXPECT_NOT_NULL(server_received_ocsp_response);
/* The server did not send an OCSP response, and the client did not receive an OCSP response */
EXPECT_EQUAL(s2n_connection_is_ocsp_stapled(server_conn), 0);
EXPECT_EQUAL(s2n_connection_is_ocsp_stapled(client_conn), 0);
}
/* Client and server both request OCSP staples, and client and server both send responses */
{
DEFER_CLEANUP(struct s2n_config *client_config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(client_config);
EXPECT_SUCCESS(s2n_config_set_verification_ca_location(client_config, S2N_OCSP_CA_CERT, NULL));
EXPECT_SUCCESS(s2n_config_set_cipher_preferences(client_config, "default_tls13"));
EXPECT_SUCCESS(s2n_config_set_status_request_type(client_config, S2N_STATUS_REQUEST_OCSP));
EXPECT_SUCCESS(s2n_config_set_client_auth_type(client_config, S2N_CERT_AUTH_OPTIONAL));
EXPECT_SUCCESS(s2n_config_add_cert_chain_and_key_to_store(client_config, ocsp_chain_and_key));
DEFER_CLEANUP(struct s2n_config *server_config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(server_config);
EXPECT_SUCCESS(s2n_config_add_cert_chain_and_key_to_store(server_config, ocsp_chain_and_key));
EXPECT_SUCCESS(s2n_config_set_cipher_preferences(server_config, "default_tls13"));
EXPECT_SUCCESS(s2n_config_set_status_request_type(server_config, S2N_STATUS_REQUEST_OCSP));
EXPECT_SUCCESS(s2n_config_set_client_auth_type(server_config, S2N_CERT_AUTH_REQUIRED));
EXPECT_SUCCESS(s2n_config_set_verification_ca_location(server_config, S2N_OCSP_CA_CERT, NULL));
DEFER_CLEANUP(struct s2n_connection *server_conn = s2n_connection_new(S2N_SERVER), s2n_connection_ptr_free);
EXPECT_NOT_NULL(server_conn);
EXPECT_SUCCESS(s2n_connection_set_config(server_conn, server_config));
DEFER_CLEANUP(struct s2n_connection *client_conn = s2n_connection_new(S2N_CLIENT), s2n_connection_ptr_free);
EXPECT_NOT_NULL(client_conn);
EXPECT_SUCCESS(s2n_connection_set_config(client_conn, client_config));
EXPECT_SUCCESS(s2n_set_server_name(client_conn, "s2n Test Cert"));
DEFER_CLEANUP(struct s2n_test_io_pair io_pair = { 0 }, s2n_io_pair_close);
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));
EXPECT_SUCCESS(s2n_negotiate_test_server_and_client(server_conn, client_conn));
EXPECT_EQUAL(server_conn->actual_protocol_version, S2N_TLS13);
EXPECT_EQUAL(client_conn->actual_protocol_version, S2N_TLS13);
uint32_t client_received_ocsp_response_len = 0;
const uint8_t *client_received_ocsp_response = s2n_connection_get_ocsp_response(client_conn,
&client_received_ocsp_response_len);
EXPECT_NOT_NULL(client_received_ocsp_response);
uint32_t server_received_ocsp_response_len = 0;
const uint8_t *server_received_ocsp_response = s2n_connection_get_ocsp_response(server_conn,
&server_received_ocsp_response_len);
EXPECT_NOT_NULL(server_received_ocsp_response);
/* The server sent an OCSP response, and the client received an OCSP response */
EXPECT_EQUAL(s2n_connection_is_ocsp_stapled(server_conn), 1);
EXPECT_EQUAL(s2n_connection_is_ocsp_stapled(client_conn), 1);
}
/* Server sets an OCSP response but client does not request OCSP stapling */
{
DEFER_CLEANUP(struct s2n_config *client_config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(client_config);
EXPECT_SUCCESS(s2n_config_set_verification_ca_location(client_config, S2N_OCSP_CA_CERT, NULL));
EXPECT_SUCCESS(s2n_config_set_cipher_preferences(client_config, "default_tls13"));
EXPECT_SUCCESS(s2n_config_set_status_request_type(client_config, S2N_STATUS_REQUEST_NONE));
DEFER_CLEANUP(struct s2n_config *server_config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(server_config);
EXPECT_SUCCESS(s2n_config_add_cert_chain_and_key_to_store(server_config, ocsp_chain_and_key));
EXPECT_SUCCESS(s2n_config_set_cipher_preferences(server_config, "default_tls13"));
DEFER_CLEANUP(struct s2n_connection *server_conn = s2n_connection_new(S2N_SERVER), s2n_connection_ptr_free);
EXPECT_NOT_NULL(server_conn);
EXPECT_SUCCESS(s2n_connection_set_config(server_conn, server_config));
DEFER_CLEANUP(struct s2n_connection *client_conn = s2n_connection_new(S2N_CLIENT), s2n_connection_ptr_free);
EXPECT_NOT_NULL(client_conn);
EXPECT_SUCCESS(s2n_connection_set_config(client_conn, client_config));
EXPECT_SUCCESS(s2n_set_server_name(client_conn, "s2n Test Cert"));
DEFER_CLEANUP(struct s2n_test_io_pair io_pair = { 0 }, s2n_io_pair_close);
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));
EXPECT_SUCCESS(s2n_negotiate_test_server_and_client(server_conn, client_conn));
EXPECT_EQUAL(server_conn->actual_protocol_version, S2N_TLS13);
EXPECT_EQUAL(client_conn->actual_protocol_version, S2N_TLS13);
uint32_t client_received_ocsp_response_len = 0;
const uint8_t *client_received_ocsp_response = s2n_connection_get_ocsp_response(client_conn,
&client_received_ocsp_response_len);
uint32_t server_received_ocsp_response_len = 0;
const uint8_t *server_received_ocsp_response = s2n_connection_get_ocsp_response(server_conn,
&server_received_ocsp_response_len);
/* Both the server and client did not request OCSP responses, so neither should have received them. */
EXPECT_NULL(client_received_ocsp_response);
EXPECT_NULL(server_received_ocsp_response);
/* The server did not send an OCSP response, and the client did not receive an OCSP response */
EXPECT_EQUAL(s2n_connection_is_ocsp_stapled(server_conn), 0);
EXPECT_EQUAL(s2n_connection_is_ocsp_stapled(client_conn), 0);
}
}
END_TEST();
return 0;
}
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