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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_client_session_ticket.h"
#include "tls/s2n_resume.h"
/* Normally the session ticket is set by receiving a
* new_session_ticket message. We'll just set it manually.
*/
static void s2n_set_test_ticket(struct s2n_connection *conn, const uint8_t *ticket_data, uint8_t ticket_data_len)
{
EXPECT_SUCCESS(s2n_realloc(&conn->client_ticket, ticket_data_len));
EXPECT_MEMCPY_SUCCESS(conn->client_ticket.data, ticket_data, ticket_data_len);
}
int main(int argc, char **argv)
{
BEGIN_TEST();
EXPECT_SUCCESS(s2n_disable_tls13_in_test());
struct s2n_config *config = NULL;
EXPECT_NOT_NULL(config = s2n_config_new());
struct s2n_connection *client_conn = NULL;
EXPECT_NOT_NULL(client_conn = s2n_connection_new(S2N_CLIENT));
EXPECT_SUCCESS(s2n_connection_set_config(client_conn, config));
/* should_send */
{
struct s2n_connection *conn = NULL;
EXPECT_NOT_NULL(conn = s2n_connection_new(S2N_CLIENT));
EXPECT_SUCCESS(s2n_connection_set_config(conn, config));
/* session ticket should NOT be sent if turned off */
EXPECT_SUCCESS(s2n_config_set_session_tickets_onoff(config, false));
EXPECT_FALSE(s2n_client_session_ticket_extension.should_send(conn));
/* session ticket should be sent if turned on */
EXPECT_SUCCESS(s2n_config_set_session_tickets_onoff(config, true));
EXPECT_TRUE(s2n_client_session_ticket_extension.should_send(conn));
/* session ticket should not be sent if TLS1.3 PSKs are being used */
DEFER_CLEANUP(struct s2n_psk *test_psk = s2n_test_psk_new(conn), s2n_psk_free);
EXPECT_SUCCESS(s2n_connection_append_psk(conn, test_psk));
EXPECT_FALSE(s2n_client_session_ticket_extension.should_send(conn));
EXPECT_SUCCESS(s2n_connection_free(conn));
};
EXPECT_SUCCESS(s2n_config_set_session_tickets_onoff(config, true));
const uint8_t test_ticket[S2N_TLS12_TICKET_SIZE_IN_BYTES] = "TICKET";
/* send */
{
struct s2n_stuffer stuffer = { 0 };
EXPECT_SUCCESS(s2n_stuffer_growable_alloc(&stuffer, 0));
s2n_set_test_ticket(client_conn, test_ticket, s2n_array_len(test_ticket));
EXPECT_SUCCESS(s2n_client_session_ticket_extension.send(client_conn, &stuffer));
EXPECT_BYTEARRAY_EQUAL(stuffer.blob.data, test_ticket, s2n_array_len(test_ticket));
EXPECT_SUCCESS(s2n_stuffer_free(&stuffer));
};
/* recv - decrypt ticket */
{
struct s2n_connection *server_conn = NULL;
EXPECT_NOT_NULL(server_conn = s2n_connection_new(S2N_SERVER));
EXPECT_SUCCESS(s2n_connection_set_config(server_conn, config));
struct s2n_stuffer stuffer = { 0 };
EXPECT_SUCCESS(s2n_stuffer_growable_alloc(&stuffer, 0));
s2n_set_test_ticket(client_conn, test_ticket, S2N_TLS12_TICKET_SIZE_IN_BYTES);
EXPECT_SUCCESS(s2n_client_session_ticket_extension.send(client_conn, &stuffer));
EXPECT_EQUAL(server_conn->session_ticket_status, S2N_NO_TICKET);
EXPECT_SUCCESS(s2n_client_session_ticket_extension.recv(server_conn, &stuffer));
EXPECT_EQUAL(server_conn->session_ticket_status, S2N_DECRYPT_TICKET);
EXPECT_BYTEARRAY_EQUAL(server_conn->client_ticket_to_decrypt.blob.data,
test_ticket, s2n_array_len(test_ticket));
EXPECT_SUCCESS(s2n_stuffer_free(&stuffer));
EXPECT_SUCCESS(s2n_connection_free(server_conn));
};
/* recv - ignore extension if TLS1.3 */
{
struct s2n_connection *server_conn = NULL;
EXPECT_NOT_NULL(server_conn = s2n_connection_new(S2N_SERVER));
EXPECT_SUCCESS(s2n_connection_set_config(server_conn, config));
struct s2n_stuffer stuffer = { 0 };
EXPECT_SUCCESS(s2n_stuffer_growable_alloc(&stuffer, 0));
s2n_set_test_ticket(client_conn, test_ticket, S2N_TLS12_TICKET_SIZE_IN_BYTES);
EXPECT_SUCCESS(s2n_client_session_ticket_extension.send(client_conn, &stuffer));
server_conn->actual_protocol_version = S2N_TLS13;
EXPECT_SUCCESS(s2n_client_session_ticket_extension.recv(server_conn, &stuffer));
EXPECT_EQUAL(server_conn->session_ticket_status, S2N_NO_TICKET);
EXPECT_EQUAL(s2n_stuffer_data_available(&server_conn->client_ticket_to_decrypt), 0);
server_conn->actual_protocol_version = S2N_TLS12;
EXPECT_SUCCESS(s2n_client_session_ticket_extension.recv(server_conn, &stuffer));
EXPECT_EQUAL(server_conn->session_ticket_status, S2N_DECRYPT_TICKET);
EXPECT_SUCCESS(s2n_stuffer_free(&stuffer));
EXPECT_SUCCESS(s2n_connection_free(server_conn));
};
/* recv - ignore extension if not correct size */
{
struct s2n_connection *server_conn = NULL;
EXPECT_NOT_NULL(server_conn = s2n_connection_new(S2N_SERVER));
EXPECT_SUCCESS(s2n_connection_set_config(server_conn, config));
struct s2n_stuffer stuffer = { 0 };
EXPECT_SUCCESS(s2n_stuffer_growable_alloc(&stuffer, 0));
s2n_set_test_ticket(client_conn, test_ticket, S2N_TLS12_TICKET_SIZE_IN_BYTES - 1);
EXPECT_SUCCESS(s2n_client_session_ticket_extension.send(client_conn, &stuffer));
uint8_t extension_data = s2n_stuffer_data_available(&stuffer);
EXPECT_SUCCESS(s2n_client_session_ticket_extension.recv(server_conn, &stuffer));
EXPECT_EQUAL(server_conn->session_ticket_status, S2N_NO_TICKET);
EXPECT_EQUAL(s2n_stuffer_data_available(&stuffer), extension_data);
EXPECT_SUCCESS(s2n_stuffer_free(&stuffer));
EXPECT_SUCCESS(s2n_connection_free(server_conn));
};
/* recv - ignore extension if tickets not allowed */
{
struct s2n_connection *server_conn = NULL;
EXPECT_NOT_NULL(server_conn = s2n_connection_new(S2N_SERVER));
EXPECT_SUCCESS(s2n_connection_set_config(server_conn, config));
struct s2n_stuffer stuffer = { 0 };
EXPECT_SUCCESS(s2n_stuffer_growable_alloc(&stuffer, 0));
s2n_set_test_ticket(client_conn, test_ticket, S2N_TLS12_TICKET_SIZE_IN_BYTES);
EXPECT_SUCCESS(s2n_client_session_ticket_extension.send(client_conn, &stuffer));
uint8_t extension_data = s2n_stuffer_data_available(&stuffer);
/* ignore if tickets not on */
EXPECT_SUCCESS(s2n_config_set_session_tickets_onoff(config, false));
EXPECT_SUCCESS(s2n_client_session_ticket_extension.recv(server_conn, &stuffer));
EXPECT_EQUAL(server_conn->session_ticket_status, S2N_NO_TICKET);
EXPECT_EQUAL(s2n_stuffer_data_available(&stuffer), extension_data);
EXPECT_SUCCESS(s2n_config_set_session_tickets_onoff(config, true));
/* ignore if client auth in use */
EXPECT_SUCCESS(s2n_config_set_client_auth_type(config, S2N_CERT_AUTH_REQUIRED));
EXPECT_SUCCESS(s2n_client_session_ticket_extension.recv(server_conn, &stuffer));
EXPECT_EQUAL(server_conn->session_ticket_status, S2N_NO_TICKET);
EXPECT_EQUAL(s2n_stuffer_data_available(&stuffer), extension_data);
EXPECT_SUCCESS(s2n_config_set_client_auth_type(config, S2N_CERT_AUTH_NONE));
/* When tickets on and client auth not in use, don't ignore */
EXPECT_SUCCESS(s2n_client_session_ticket_extension.recv(server_conn, &stuffer));
EXPECT_NOT_EQUAL(server_conn->session_ticket_status, S2N_NO_TICKET);
EXPECT_SUCCESS(s2n_stuffer_free(&stuffer));
EXPECT_SUCCESS(s2n_connection_free(server_conn));
};
EXPECT_SUCCESS(s2n_connection_free(client_conn));
EXPECT_SUCCESS(s2n_config_free(config));
END_TEST();
return 0;
}
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