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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 <errno.h>
#include <fcntl.h>
#include <stdint.h>
#include <sys/wait.h>
#include <unistd.h>
#include "api/s2n.h"
#include "s2n_test.h"
#include "testlib/s2n_testlib.h"
#include "tls/s2n_connection.h"
#include "tls/s2n_handshake.h"
#include "tls/s2n_tls.h"
#include "tls/s2n_tls_parameters.h"
#define ZERO_TO_THIRTY_ONE 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, \
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F
int main(int argc, char **argv)
{
char *cert_chain = NULL;
char *private_key = NULL;
BEGIN_TEST();
EXPECT_SUCCESS(s2n_disable_tls13_in_test());
EXPECT_NOT_NULL(cert_chain = malloc(S2N_MAX_TEST_PEM_SIZE));
EXPECT_NOT_NULL(private_key = malloc(S2N_MAX_TEST_PEM_SIZE));
EXPECT_SUCCESS(setenv("S2N_DONT_MLOCK", "1", 0));
/* Success: server sends an empty initial renegotiation_info */
{
struct s2n_connection *client_conn = NULL;
struct s2n_config *client_config = NULL;
s2n_blocked_status client_blocked;
uint8_t server_extensions[] = {
/* Extension type TLS_EXTENSION_RENEGOTIATION_INFO */
0xff,
0x01,
/* Extension size */
0x00,
0x01,
/* renegotiated_connection len */
0x00,
};
int server_extensions_len = sizeof(server_extensions);
uint8_t server_hello_message[] = {
/* Protocol version TLS 1.2 */
0x03,
0x03,
/* Server random */
ZERO_TO_THIRTY_ONE,
/* SessionID len - 32 bytes */
0x20,
/* Session ID */
ZERO_TO_THIRTY_ONE,
/* Cipher suite - TLS_RSA_WITH_AES_128_CBC_SHA256 */
0x00,
0x3C,
/* Compression method - none */
0x00,
/* Extensions len */
(server_extensions_len >> 8) & 0xff,
(server_extensions_len & 0xff),
};
int body_len = sizeof(server_hello_message) + server_extensions_len;
uint8_t message_header[] = {
/* Handshake message type SERVER HELLO */
0x02,
/* Body len */
(body_len >> 16) & 0xff,
(body_len >> 8) & 0xff,
(body_len & 0xff),
};
int message_len = sizeof(message_header) + body_len;
uint8_t record_header[] = {
/* Record type HANDSHAKE */
0x16,
/* Protocol version TLS 1.2 */
0x03,
0x03,
/* Message len */
(message_len >> 8) & 0xff,
(message_len & 0xff),
};
/* Create nonblocking pipes */
struct s2n_test_io_pair io_pair;
EXPECT_SUCCESS(s2n_io_pair_init_non_blocking(&io_pair));
EXPECT_NOT_NULL(client_conn = s2n_connection_new(S2N_CLIENT));
EXPECT_SUCCESS(s2n_connection_set_io_pair(client_conn, &io_pair));
EXPECT_NOT_NULL(client_config = s2n_config_new());
/* Security policy must allow cipher suite hard coded into server hello */
EXPECT_SUCCESS(s2n_config_set_cipher_preferences(client_config, "test_all"));
EXPECT_SUCCESS(s2n_connection_set_config(client_conn, client_config));
/* Send the client hello */
EXPECT_EQUAL(s2n_negotiate(client_conn, &client_blocked), -1);
EXPECT_EQUAL(s2n_errno, S2N_ERR_IO_BLOCKED);
EXPECT_EQUAL(client_blocked, S2N_BLOCKED_ON_READ);
/* Write the server hello */
EXPECT_EQUAL(write(io_pair.server, record_header, sizeof(record_header)), sizeof(record_header));
EXPECT_EQUAL(write(io_pair.server, message_header, sizeof(message_header)), sizeof(message_header));
EXPECT_EQUAL(write(io_pair.server, server_hello_message, sizeof(server_hello_message)), sizeof(server_hello_message));
EXPECT_EQUAL(write(io_pair.server, server_extensions, sizeof(server_extensions)), sizeof(server_extensions));
/* Verify that we proceed with handshake */
EXPECT_EQUAL(s2n_negotiate(client_conn, &client_blocked), -1);
EXPECT_EQUAL(s2n_errno, S2N_ERR_IO_BLOCKED);
EXPECT_EQUAL(client_blocked, S2N_BLOCKED_ON_READ);
/* Secure renegotiation is set */
EXPECT_EQUAL(client_conn->secure_renegotiation, 1);
EXPECT_SUCCESS(s2n_io_pair_close(&io_pair));
EXPECT_SUCCESS(s2n_connection_free(client_conn));
EXPECT_SUCCESS(s2n_config_free(client_config));
};
/* Success: server doesn't send an renegotiation_info extension */
{
struct s2n_connection *client_conn = NULL;
struct s2n_config *client_config = NULL;
s2n_blocked_status client_blocked;
uint8_t server_hello_message[] = {
/* Protocol version TLS 1.2 */
0x03, 0x03,
/* Server random */
ZERO_TO_THIRTY_ONE,
/* SessionID len - 32 bytes */
0x20,
/* Session ID */
ZERO_TO_THIRTY_ONE,
/* Cipher suite - TLS_RSA_WITH_AES_128_CBC_SHA256 */
0x00, 0x3C,
/* Compression method - none */
0x00,
/* Extensions len */
0x00, 0x00
};
int body_len = sizeof(server_hello_message);
uint8_t message_header[] = {
/* Handshake message type SERVER HELLO */
0x02,
/* Body len */
(body_len >> 16) & 0xff,
(body_len >> 8) & 0xff,
(body_len & 0xff),
};
int message_len = sizeof(message_header) + body_len;
uint8_t record_header[] = {
/* Record type HANDSHAKE */
0x16,
/* Protocol version TLS 1.2 */
0x03,
0x03,
/* Message len */
(message_len >> 8) & 0xff,
(message_len & 0xff),
};
/* Create nonblocking pipes */
struct s2n_test_io_pair io_pair;
EXPECT_SUCCESS(s2n_io_pair_init_non_blocking(&io_pair));
EXPECT_NOT_NULL(client_conn = s2n_connection_new(S2N_CLIENT));
EXPECT_SUCCESS(s2n_connection_set_io_pair(client_conn, &io_pair));
EXPECT_NOT_NULL(client_config = s2n_config_new());
/* Security policy must allow cipher suite hard coded into server hello */
EXPECT_SUCCESS(s2n_config_set_cipher_preferences(client_config, "test_all"));
EXPECT_SUCCESS(s2n_connection_set_config(client_conn, client_config));
/* Send the client hello */
EXPECT_EQUAL(s2n_negotiate(client_conn, &client_blocked), -1);
EXPECT_EQUAL(s2n_errno, S2N_ERR_IO_BLOCKED);
EXPECT_EQUAL(client_blocked, S2N_BLOCKED_ON_READ);
/* Write the server hello */
EXPECT_EQUAL(write(io_pair.server, record_header, sizeof(record_header)), sizeof(record_header));
EXPECT_EQUAL(write(io_pair.server, message_header, sizeof(message_header)), sizeof(message_header));
EXPECT_EQUAL(write(io_pair.server, server_hello_message, sizeof(server_hello_message)), sizeof(server_hello_message));
/* Verify that we proceed with handshake */
EXPECT_EQUAL(s2n_negotiate(client_conn, &client_blocked), -1);
EXPECT_EQUAL(s2n_errno, S2N_ERR_IO_BLOCKED);
EXPECT_EQUAL(client_blocked, S2N_BLOCKED_ON_READ);
/* Secure renegotiation is not set, as server doesn't support it */
EXPECT_EQUAL(client_conn->secure_renegotiation, 0);
EXPECT_SUCCESS(s2n_io_pair_close(&io_pair));
EXPECT_SUCCESS(s2n_connection_free(client_conn));
EXPECT_SUCCESS(s2n_config_free(client_config));
};
/* Failure: server sends a non-empty initial renegotiation_info */
{
struct s2n_connection *client_conn = NULL;
struct s2n_config *client_config = NULL;
s2n_blocked_status client_blocked;
uint8_t server_extensions[] = {
/* Extension type TLS_EXTENSION_RENEGOTIATION_INFO */
0xff,
0x01,
/* Extension size */
0x00,
0x21,
/* renegotiated_connection len */
0x20,
/* fake renegotiated_connection */
ZERO_TO_THIRTY_ONE,
};
int server_extensions_len = sizeof(server_extensions);
uint8_t server_hello_message[] = {
/* Protocol version TLS 1.2 */
0x03,
0x03,
/* Server random */
ZERO_TO_THIRTY_ONE,
/* SessionID len - 32 bytes */
0x20,
/* Session ID */
ZERO_TO_THIRTY_ONE,
/* Cipher suite - TLS_RSA_WITH_AES_128_CBC_SHA256 */
0x00,
0x3C,
/* Compression method - none */
0x00,
/* Extensions len */
(server_extensions_len >> 8) & 0xff,
(server_extensions_len & 0xff),
};
int body_len = sizeof(server_hello_message) + server_extensions_len;
uint8_t message_header[] = {
/* Handshake message type SERVER HELLO */
0x02,
/* Body len */
(body_len >> 16) & 0xff,
(body_len >> 8) & 0xff,
(body_len & 0xff),
};
int message_len = sizeof(message_header) + body_len;
uint8_t record_header[] = {
/* Record type HANDSHAKE */
0x16,
/* Protocol version TLS 1.2 */
0x03,
0x03,
/* Message len */
(message_len >> 8) & 0xff,
(message_len & 0xff),
};
/* Create nonblocking pipes */
struct s2n_test_io_pair io_pair;
EXPECT_SUCCESS(s2n_io_pair_init_non_blocking(&io_pair));
EXPECT_NOT_NULL(client_conn = s2n_connection_new(S2N_CLIENT));
EXPECT_SUCCESS(s2n_connection_set_io_pair(client_conn, &io_pair));
EXPECT_NOT_NULL(client_config = s2n_config_new());
EXPECT_SUCCESS(s2n_connection_set_config(client_conn, client_config));
/* Send the client hello */
EXPECT_EQUAL(s2n_negotiate(client_conn, &client_blocked), -1);
EXPECT_EQUAL(s2n_errno, S2N_ERR_IO_BLOCKED);
EXPECT_EQUAL(client_blocked, S2N_BLOCKED_ON_READ);
/* Write the server hello */
EXPECT_EQUAL(write(io_pair.server, record_header, sizeof(record_header)), sizeof(record_header));
EXPECT_EQUAL(write(io_pair.server, message_header, sizeof(message_header)), sizeof(message_header));
EXPECT_EQUAL(write(io_pair.server, server_hello_message, sizeof(server_hello_message)), sizeof(server_hello_message));
EXPECT_EQUAL(write(io_pair.server, server_extensions, sizeof(server_extensions)), sizeof(server_extensions));
/* Verify that we fail for non-empty renegotiated_connection */
EXPECT_SUCCESS(s2n_connection_set_blinding(client_conn, S2N_SELF_SERVICE_BLINDING));
EXPECT_EQUAL(s2n_negotiate(client_conn, &client_blocked), -1);
EXPECT_EQUAL(s2n_errno, S2N_ERR_NON_EMPTY_RENEGOTIATION_INFO);
EXPECT_SUCCESS(s2n_io_pair_close(&io_pair));
EXPECT_SUCCESS(s2n_connection_free(client_conn));
EXPECT_SUCCESS(s2n_config_free(client_config));
};
free(cert_chain);
free(private_key);
END_TEST();
return 0;
}
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