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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 "tls/s2n_connection_serialize.h"
#include "s2n_test.h"
#include "testlib/s2n_testlib.h"
#include "tls/s2n_config.h"
#define S2N_SERIALIZED_CONN_TLS13_SHA256_SIZE 126
#define TEST_SEQUENCE_NUM 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
#define TEST_TLS13_SECRET 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
static S2N_RESULT s2n_test_key_update(struct s2n_connection *client_conn, struct s2n_connection *server_conn)
{
/* One side initiates key update */
RESULT_GUARD_POSIX(s2n_connection_request_key_update(client_conn, S2N_KEY_UPDATE_NOT_REQUESTED));
/* Sending and receiving multiple times is successful after key update */
for (size_t i = 0; i < 10; i++) {
EXPECT_OK(s2n_send_and_recv_test(client_conn, server_conn));
}
EXPECT_EQUAL(client_conn->send_key_updated, 1);
EXPECT_EQUAL(server_conn->recv_key_updated, 1);
/* Other side initiates key update */
EXPECT_SUCCESS(s2n_connection_request_key_update(server_conn, S2N_KEY_UPDATE_NOT_REQUESTED));
/* Sending and receiving multiple times is successful after key update */
for (size_t i = 0; i < 10; i++) {
EXPECT_OK(s2n_send_and_recv_test(server_conn, client_conn));
}
EXPECT_EQUAL(client_conn->recv_key_updated, 1);
EXPECT_EQUAL(server_conn->send_key_updated, 1);
return S2N_RESULT_OK;
}
static S2N_RESULT s2n_ticket_pickup(struct s2n_connection *conn, struct s2n_blob *session_ticket)
{
int session_length = s2n_connection_get_session_length(conn);
EXPECT_NOT_EQUAL(session_length, 0);
EXPECT_SUCCESS(s2n_realloc(session_ticket, session_length));
EXPECT_SUCCESS(s2n_connection_get_session(conn, session_ticket->data, session_length));
session_ticket->size = session_length;
return S2N_RESULT_OK;
}
static int s2n_test_reneg_cb(struct s2n_connection *conn, void *context,
s2n_renegotiate_response *response)
{
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));
DEFER_CLEANUP(struct s2n_config *tls12_config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_SUCCESS(s2n_config_set_cipher_preferences(tls12_config, "20240501"));
EXPECT_SUCCESS(s2n_config_add_cert_chain_and_key_to_store(tls12_config, chain_and_key));
EXPECT_SUCCESS(s2n_config_disable_x509_verification(tls12_config));
EXPECT_SUCCESS(s2n_config_set_serialization_version(tls12_config, S2N_SERIALIZED_CONN_V1));
DEFER_CLEANUP(struct s2n_config *tls13_config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_SUCCESS(s2n_config_add_cert_chain_and_key_to_store(tls13_config, chain_and_key));
EXPECT_SUCCESS(s2n_config_disable_x509_verification(tls13_config));
EXPECT_SUCCESS(s2n_config_set_serialization_version(tls13_config, S2N_SERIALIZED_CONN_V1));
/* Security policy that can negotiate TLS13 and has aes_128_gcm_sha256 as its preferred cipher suite */
EXPECT_SUCCESS(s2n_config_set_cipher_preferences(tls13_config, "20210825"));
/* s2n_connection_serialization_length */
{
/* Safety */
{
DEFER_CLEANUP(struct s2n_connection *conn = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
EXPECT_NOT_NULL(conn);
uint32_t length = 0;
EXPECT_FAILURE_WITH_ERRNO(s2n_connection_serialization_length(conn, NULL), S2N_ERR_NULL);
EXPECT_FAILURE_WITH_ERRNO(s2n_connection_serialization_length(NULL, &length), S2N_ERR_NULL);
};
/* Length is correct for all possible cipher suites in TLS1.3 */
{
DEFER_CLEANUP(struct s2n_connection *conn = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
EXPECT_NOT_NULL(conn);
EXPECT_SUCCESS(s2n_connection_set_config(conn, tls13_config));
conn->actual_protocol_version = S2N_TLS13;
for (size_t i = 0; i < cipher_preferences_test_all.count; i++) {
struct s2n_cipher_suite *cipher_suite = cipher_preferences_test_all.suites[i];
conn->secure->cipher_suite = cipher_suite;
uint8_t expected_secret_size = 0;
EXPECT_SUCCESS(s2n_hmac_digest_size(cipher_suite->prf_alg, &expected_secret_size));
uint32_t length = 0;
EXPECT_SUCCESS(s2n_connection_serialization_length(conn, &length));
EXPECT_EQUAL(length, S2N_SERIALIZED_CONN_FIXED_SIZE + (expected_secret_size * 3));
}
};
/* Length is correct for TLS1.2 */
{
DEFER_CLEANUP(struct s2n_connection *conn = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
EXPECT_NOT_NULL(conn);
EXPECT_SUCCESS(s2n_connection_set_config(conn, tls12_config));
conn->actual_protocol_version = S2N_TLS12;
uint32_t length = 0;
EXPECT_SUCCESS(s2n_connection_serialization_length(conn, &length));
EXPECT_EQUAL(length, S2N_SERIALIZED_CONN_TLS12_SIZE);
};
};
/* s2n_connection_serialize */
{
/* Safety */
{
DEFER_CLEANUP(struct s2n_connection *conn = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
EXPECT_NOT_NULL(conn);
uint8_t data = 0;
uint32_t length = 0;
EXPECT_FAILURE_WITH_ERRNO(s2n_connection_serialize(NULL, &data, length), S2N_ERR_NULL);
EXPECT_FAILURE_WITH_ERRNO(s2n_connection_serialize(conn, NULL, length), S2N_ERR_NULL);
};
/* Invalid usage checks */
{
DEFER_CLEANUP(struct s2n_connection *conn = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
EXPECT_NOT_NULL(conn);
DEFER_CLEANUP(struct s2n_config *config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(config);
EXPECT_SUCCESS(s2n_connection_set_config(conn, config));
uint8_t buffer[10] = { 0 };
uint32_t length = sizeof(buffer);
/* Format version must be set before calling this function */
EXPECT_FAILURE_WITH_ERRNO(s2n_connection_serialize(conn, buffer, length),
S2N_ERR_INVALID_STATE);
/* Negotiation must be complete before calling this function */
EXPECT_SUCCESS(s2n_config_set_serialization_version(config, S2N_SERIALIZED_CONN_V1));
EXPECT_FAILURE_WITH_ERRNO(s2n_connection_serialize(conn, buffer, length),
S2N_ERR_HANDSHAKE_NOT_COMPLETE);
/* Buffer must be large enough to hold entire serialized length */
EXPECT_OK(s2n_skip_handshake(conn));
EXPECT_FAILURE_WITH_ERRNO(s2n_connection_serialize(conn, buffer, length),
S2N_ERR_INSUFFICIENT_MEM_SIZE);
};
/* Serializes TLS 1.2 */
{
DEFER_CLEANUP(struct s2n_connection *client_conn = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
EXPECT_NOT_NULL(client_conn);
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(client_conn, tls12_config));
EXPECT_SUCCESS(s2n_connection_set_config(server_conn, tls12_config));
DEFER_CLEANUP(struct s2n_test_io_stuffer_pair io_pair = { 0 }, s2n_io_stuffer_pair_free);
EXPECT_OK(s2n_io_stuffer_pair_init(&io_pair));
EXPECT_OK(s2n_connections_set_io_stuffer_pair(client_conn, server_conn, &io_pair));
EXPECT_SUCCESS(s2n_negotiate_test_server_and_client(server_conn, client_conn));
EXPECT_EQUAL(s2n_connection_get_actual_protocol_version(server_conn), S2N_TLS12);
uint8_t iana_value[S2N_TLS_CIPHER_SUITE_LEN] = { 0 };
EXPECT_SUCCESS(s2n_connection_get_cipher_iana_value(server_conn, &iana_value[0], &iana_value[1]));
uint32_t length = 0;
EXPECT_SUCCESS(s2n_connection_serialization_length(server_conn, &length));
uint8_t buffer[S2N_SERIALIZED_CONN_TLS12_SIZE] = { 0 };
EXPECT_SUCCESS(s2n_connection_serialize(server_conn, buffer, sizeof(buffer)));
struct s2n_blob blob = { 0 };
EXPECT_SUCCESS(s2n_blob_init(&blob, buffer, sizeof(buffer)));
struct s2n_stuffer stuffer = { 0 };
EXPECT_SUCCESS(s2n_stuffer_init_written(&stuffer, &blob));
EXPECT_EQUAL(length, s2n_stuffer_data_available(&stuffer));
uint64_t serialized_version = 0;
EXPECT_SUCCESS(s2n_stuffer_read_uint64(&stuffer, &serialized_version));
EXPECT_EQUAL(serialized_version, S2N_SERIALIZED_CONN_V1);
uint8_t protocol_version[S2N_TLS_PROTOCOL_VERSION_LEN] = { 0 };
EXPECT_SUCCESS(s2n_stuffer_read_bytes(&stuffer, protocol_version,
S2N_TLS_PROTOCOL_VERSION_LEN));
EXPECT_EQUAL((protocol_version[0] * 10) + protocol_version[1], S2N_TLS12);
uint8_t cipher_suite[S2N_TLS_CIPHER_SUITE_LEN] = { 0 };
EXPECT_SUCCESS(s2n_stuffer_read_bytes(&stuffer, cipher_suite, S2N_TLS_CIPHER_SUITE_LEN));
EXPECT_BYTEARRAY_EQUAL(cipher_suite, iana_value, S2N_TLS_CIPHER_SUITE_LEN);
uint8_t client_sequence_number[S2N_TLS_SEQUENCE_NUM_LEN] = { 0 };
EXPECT_SUCCESS(s2n_stuffer_read_bytes(&stuffer, client_sequence_number,
S2N_TLS_SEQUENCE_NUM_LEN));
uint8_t expected_sequence_number[] = { 0, 0, 0, 0, 0, 0, 0, 1 };
EXPECT_BYTEARRAY_EQUAL(client_sequence_number, expected_sequence_number,
S2N_TLS_SEQUENCE_NUM_LEN);
uint8_t server_sequence_number[S2N_TLS_SEQUENCE_NUM_LEN] = { 0 };
EXPECT_SUCCESS(s2n_stuffer_read_bytes(&stuffer, server_sequence_number,
S2N_TLS_SEQUENCE_NUM_LEN));
EXPECT_BYTEARRAY_EQUAL(server_sequence_number, expected_sequence_number,
S2N_TLS_SEQUENCE_NUM_LEN);
uint16_t frag_len = 0;
EXPECT_SUCCESS(s2n_stuffer_read_uint16(&stuffer, &frag_len));
EXPECT_EQUAL(frag_len, S2N_DEFAULT_FRAGMENT_LENGTH);
uint8_t master_secret[S2N_TLS_SECRET_LEN] = { 0 };
EXPECT_SUCCESS(s2n_stuffer_read_bytes(&stuffer, master_secret, S2N_TLS_SECRET_LEN));
EXPECT_BYTEARRAY_EQUAL(master_secret, server_conn->secrets.version.tls12.master_secret,
S2N_TLS_SECRET_LEN);
uint8_t client_random[S2N_TLS_RANDOM_DATA_LEN] = { 0 };
EXPECT_SUCCESS(s2n_stuffer_read_bytes(&stuffer, client_random, S2N_TLS_RANDOM_DATA_LEN));
EXPECT_BYTEARRAY_EQUAL(client_random, server_conn->handshake_params.client_random,
S2N_TLS_RANDOM_DATA_LEN);
uint8_t server_random[S2N_TLS_RANDOM_DATA_LEN] = { 0 };
EXPECT_SUCCESS(s2n_stuffer_read_bytes(&stuffer, server_random, S2N_TLS_RANDOM_DATA_LEN));
EXPECT_BYTEARRAY_EQUAL(server_random, server_conn->handshake_params.server_random,
S2N_TLS_RANDOM_DATA_LEN);
EXPECT_EQUAL(s2n_stuffer_data_available(&stuffer), 0);
};
/* Serializes TLS 1.3 */
if (s2n_is_tls13_fully_supported()) {
DEFER_CLEANUP(struct s2n_connection *client_conn = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
EXPECT_NOT_NULL(client_conn);
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(client_conn, tls13_config));
EXPECT_SUCCESS(s2n_connection_set_config(server_conn, tls13_config));
DEFER_CLEANUP(struct s2n_test_io_stuffer_pair io_pair = { 0 }, s2n_io_stuffer_pair_free);
EXPECT_OK(s2n_io_stuffer_pair_init(&io_pair));
EXPECT_OK(s2n_connections_set_io_stuffer_pair(client_conn, server_conn, &io_pair));
EXPECT_SUCCESS(s2n_negotiate_test_server_and_client(server_conn, client_conn));
EXPECT_EQUAL(s2n_connection_get_actual_protocol_version(server_conn), S2N_TLS13);
uint8_t iana_value[S2N_TLS_CIPHER_SUITE_LEN] = { 0 };
EXPECT_SUCCESS(s2n_connection_get_cipher_iana_value(server_conn, &iana_value[0], &iana_value[1]));
uint32_t length = 0;
EXPECT_SUCCESS(s2n_connection_serialization_length(server_conn, &length));
uint8_t buffer[S2N_SERIALIZED_CONN_TLS13_SHA256_SIZE] = { 0 };
EXPECT_SUCCESS(s2n_connection_serialize(server_conn, buffer, sizeof(buffer)));
struct s2n_blob blob = { 0 };
EXPECT_SUCCESS(s2n_blob_init(&blob, buffer, sizeof(buffer)));
struct s2n_stuffer stuffer = { 0 };
EXPECT_SUCCESS(s2n_stuffer_init_written(&stuffer, &blob));
EXPECT_EQUAL(length, s2n_stuffer_data_available(&stuffer));
uint64_t serialized_version = 0;
EXPECT_SUCCESS(s2n_stuffer_read_uint64(&stuffer, &serialized_version));
EXPECT_EQUAL(serialized_version, S2N_SERIALIZED_CONN_V1);
uint8_t protocol_version[S2N_TLS_PROTOCOL_VERSION_LEN] = { 0 };
EXPECT_SUCCESS(s2n_stuffer_read_bytes(&stuffer, protocol_version,
S2N_TLS_PROTOCOL_VERSION_LEN));
EXPECT_EQUAL((protocol_version[0] * 10) + protocol_version[1], S2N_TLS13);
uint8_t cipher_suite[S2N_TLS_CIPHER_SUITE_LEN] = { 0 };
EXPECT_SUCCESS(s2n_stuffer_read_bytes(&stuffer, cipher_suite, S2N_TLS_CIPHER_SUITE_LEN));
EXPECT_BYTEARRAY_EQUAL(cipher_suite, iana_value, S2N_TLS_CIPHER_SUITE_LEN);
uint8_t client_sequence_number[S2N_TLS_SEQUENCE_NUM_LEN] = { 0 };
EXPECT_SUCCESS(s2n_stuffer_read_bytes(&stuffer, client_sequence_number,
S2N_TLS_SEQUENCE_NUM_LEN));
uint8_t expected_sequence_number[] = { 0, 0, 0, 0, 0, 0, 0, 0 };
EXPECT_BYTEARRAY_EQUAL(client_sequence_number, expected_sequence_number,
S2N_TLS_SEQUENCE_NUM_LEN);
uint8_t server_sequence_number[S2N_TLS_SEQUENCE_NUM_LEN] = { 0 };
EXPECT_SUCCESS(s2n_stuffer_read_bytes(&stuffer, server_sequence_number,
S2N_TLS_SEQUENCE_NUM_LEN));
EXPECT_BYTEARRAY_EQUAL(server_sequence_number, expected_sequence_number,
S2N_TLS_SEQUENCE_NUM_LEN);
uint16_t frag_len = 0;
EXPECT_SUCCESS(s2n_stuffer_read_uint16(&stuffer, &frag_len));
EXPECT_EQUAL(frag_len, S2N_DEFAULT_FRAGMENT_LENGTH);
uint8_t client_secret[SHA256_DIGEST_LENGTH] = { 0 };
EXPECT_SUCCESS(s2n_stuffer_read_bytes(&stuffer, client_secret, SHA256_DIGEST_LENGTH));
EXPECT_BYTEARRAY_EQUAL(client_secret, server_conn->secrets.version.tls13.client_app_secret,
SHA256_DIGEST_LENGTH);
uint8_t server_secret[SHA256_DIGEST_LENGTH] = { 0 };
EXPECT_SUCCESS(s2n_stuffer_read_bytes(&stuffer, server_secret, SHA256_DIGEST_LENGTH));
EXPECT_BYTEARRAY_EQUAL(server_secret, server_conn->secrets.version.tls13.server_app_secret,
SHA256_DIGEST_LENGTH);
uint8_t resumption_secret[SHA256_DIGEST_LENGTH] = { 0 };
EXPECT_SUCCESS(s2n_stuffer_read_bytes(&stuffer, resumption_secret, SHA256_DIGEST_LENGTH));
EXPECT_BYTEARRAY_EQUAL(resumption_secret, server_conn->secrets.version.tls13.resumption_master_secret,
SHA256_DIGEST_LENGTH);
EXPECT_EQUAL(s2n_stuffer_data_available(&stuffer), 0);
};
/* IO buffers must be empty before calling this function */
{
DEFER_CLEANUP(struct s2n_connection *client_conn = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
EXPECT_NOT_NULL(client_conn);
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(client_conn, tls12_config));
EXPECT_SUCCESS(s2n_connection_set_config(server_conn, tls12_config));
DEFER_CLEANUP(struct s2n_test_io_stuffer_pair io_pair = { 0 }, s2n_io_stuffer_pair_free);
EXPECT_OK(s2n_io_stuffer_pair_init(&io_pair));
EXPECT_OK(s2n_connections_set_io_stuffer_pair(client_conn, server_conn, &io_pair));
EXPECT_SUCCESS(s2n_negotiate_test_server_and_client(server_conn, client_conn));
uint8_t data[] = "Hello";
s2n_blocked_status blocked = S2N_NOT_BLOCKED;
EXPECT_SUCCESS(s2n_send(client_conn, data, sizeof(data), &blocked));
/* Partial read so that some data remains in the buffer */
uint8_t recv_buf[10] = { 0 };
EXPECT_SUCCESS(s2n_recv(server_conn, &recv_buf, 1, &blocked));
uint8_t buffer[S2N_SERIALIZED_CONN_TLS12_SIZE] = { 0 };
EXPECT_FAILURE_WITH_ERRNO(s2n_connection_serialize(server_conn, buffer,
sizeof(buffer)),
S2N_ERR_INVALID_STATE);
/* Finish reading to successfully get the serialized connection */
EXPECT_SUCCESS(s2n_recv(server_conn, &recv_buf, sizeof(recv_buf), &blocked));
EXPECT_SUCCESS(s2n_connection_serialize(server_conn, buffer, sizeof(buffer)));
};
/* Cannot send or recv after serialization */
{
DEFER_CLEANUP(struct s2n_connection *client_conn = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
EXPECT_NOT_NULL(client_conn);
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(client_conn, tls13_config));
EXPECT_SUCCESS(s2n_connection_set_config(server_conn, tls13_config));
DEFER_CLEANUP(struct s2n_test_io_stuffer_pair io_pair = { 0 }, s2n_io_stuffer_pair_free);
EXPECT_OK(s2n_io_stuffer_pair_init(&io_pair));
EXPECT_OK(s2n_connections_set_io_stuffer_pair(client_conn, server_conn, &io_pair));
EXPECT_SUCCESS(s2n_negotiate_test_server_and_client(server_conn, client_conn));
uint8_t buffer[S2N_SERIALIZED_CONN_TLS12_SIZE] = { 0 };
EXPECT_SUCCESS(s2n_connection_serialize(server_conn, buffer, sizeof(buffer)));
s2n_blocked_status blocked = S2N_NOT_BLOCKED;
const uint8_t send_data[] = "hello world";
EXPECT_FAILURE_WITH_ERRNO(s2n_send(server_conn, send_data, sizeof(send_data), &blocked), S2N_ERR_CLOSED);
uint8_t recv_data = 0;
EXPECT_FAILURE_WITH_ERRNO(s2n_recv(server_conn, &recv_data, sizeof(recv_data), &blocked), S2N_ERR_CLOSED);
/* Calling shutdown after serialization will cause a plaintext alert to be sent
* since serialization wipes the encryption context. */
EXPECT_SUCCESS(s2n_shutdown_send(server_conn, &blocked));
const uint8_t expected_alert[] = {
TLS_ALERT,
S2N_TLS12 / 10,
S2N_TLS12 % 10,
0, 2,
S2N_TLS_ALERT_LEVEL_WARNING, S2N_TLS_ALERT_CLOSE_NOTIFY
};
uint8_t actual_alert[sizeof(expected_alert)] = { 0 };
EXPECT_SUCCESS(s2n_stuffer_read_bytes(&io_pair.client_in, actual_alert, sizeof(actual_alert)));
EXPECT_BYTEARRAY_EQUAL(actual_alert, expected_alert, sizeof(expected_alert));
}
/* Cannot serialize after connection has closed */
{
DEFER_CLEANUP(struct s2n_connection *client_conn = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
EXPECT_NOT_NULL(client_conn);
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(client_conn, tls13_config));
EXPECT_SUCCESS(s2n_connection_set_config(server_conn, tls13_config));
DEFER_CLEANUP(struct s2n_test_io_stuffer_pair io_pair = { 0 }, s2n_io_stuffer_pair_free);
EXPECT_OK(s2n_io_stuffer_pair_init(&io_pair));
EXPECT_OK(s2n_connections_set_io_stuffer_pair(client_conn, server_conn, &io_pair));
EXPECT_SUCCESS(s2n_negotiate_test_server_and_client(server_conn, client_conn));
s2n_blocked_status blocked = S2N_NOT_BLOCKED;
EXPECT_SUCCESS(s2n_shutdown_send(server_conn, &blocked));
/* Serializing after the connection closes will cause an error */
uint8_t buffer[S2N_SERIALIZED_CONN_TLS12_SIZE] = { 0 };
EXPECT_FAILURE_WITH_ERRNO(s2n_connection_serialize(server_conn, buffer, sizeof(buffer)), S2N_ERR_CLOSED);
}
};
/* s2n_connection_deserialize */
{
/* Safety */
{
DEFER_CLEANUP(struct s2n_connection *conn = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
EXPECT_NOT_NULL(conn);
uint8_t buffer = 0;
uint32_t length = 0;
EXPECT_FAILURE_WITH_ERRNO(s2n_connection_deserialize(NULL, &buffer, length), S2N_ERR_NULL);
EXPECT_FAILURE_WITH_ERRNO(s2n_connection_deserialize(conn, NULL, length), S2N_ERR_NULL);
};
/* Errors if format version is unknown */
{
uint8_t test_context[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x70, /* Unknown serialized_connection version */
0x03, 0x04, /* TLS 1.3 */
TLS_AES_128_GCM_SHA256,
TEST_SEQUENCE_NUM, /* Client sequence num */
TEST_SEQUENCE_NUM, /* Server sequence num */
0x01, 0x01, /* Test Fragment length */
TEST_TLS13_SECRET, /* Client app secret */
TEST_TLS13_SECRET, /* Server app secret */
TEST_TLS13_SECRET /* Resumption master secret */
};
DEFER_CLEANUP(struct s2n_connection *client_conn = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
EXPECT_NOT_NULL(client_conn);
EXPECT_FAILURE_WITH_ERRNO(s2n_connection_deserialize(client_conn, test_context,
sizeof(test_context)),
S2N_ERR_INVALID_SERIALIZED_CONNECTION);
};
/* Succeeds if format version is known */
{
uint8_t test_context[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, S2N_SERIALIZED_CONN_V1,
0x03, 0x04, /* TLS 1.3 */
TLS_AES_128_GCM_SHA256,
TEST_SEQUENCE_NUM, /* Client sequence num */
TEST_SEQUENCE_NUM, /* Server sequence num */
0x01, 0x01, /* Test Fragment length */
TEST_TLS13_SECRET, /* Client app secret */
TEST_TLS13_SECRET, /* Server app secret */
TEST_TLS13_SECRET /* Resumption master secret */
};
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_deserialize(client_conn, test_context,
sizeof(test_context)));
};
};
struct s2n_config *config_array[] = { tls12_config, tls13_config };
/* Self-talk: Client can be serialized and deserialized and continue sending and receiving data
* in TLS1.2 and TLS1.3 */
for (size_t i = 0; i < s2n_array_len(config_array); i++) {
DEFER_CLEANUP(struct s2n_connection *client_conn = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
EXPECT_NOT_NULL(client_conn);
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(client_conn, config_array[i]));
EXPECT_SUCCESS(s2n_connection_set_config(server_conn, config_array[i]));
DEFER_CLEANUP(struct s2n_test_io_stuffer_pair io_pair = { 0 }, s2n_io_stuffer_pair_free);
EXPECT_OK(s2n_io_stuffer_pair_init(&io_pair));
EXPECT_OK(s2n_connections_set_io_stuffer_pair(client_conn, server_conn, &io_pair));
EXPECT_SUCCESS(s2n_negotiate_test_server_and_client(server_conn, client_conn));
/* Preliminary send and receive */
EXPECT_OK(s2n_send_and_recv_test(server_conn, client_conn));
EXPECT_OK(s2n_send_and_recv_test(client_conn, server_conn));
uint8_t buffer[S2N_SERIALIZED_CONN_TLS12_SIZE] = { 0 };
EXPECT_SUCCESS(s2n_connection_serialize(client_conn, buffer, sizeof(buffer)));
/* Initialize new client connection and deserialize the connection */
DEFER_CLEANUP(struct s2n_connection *new_client_conn = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
EXPECT_NOT_NULL(new_client_conn);
EXPECT_SUCCESS(s2n_connection_deserialize(new_client_conn, buffer, sizeof(buffer)));
/* Wipe and re-initialize IO pipes */
EXPECT_SUCCESS(s2n_stuffer_wipe(&io_pair.client_in));
EXPECT_SUCCESS(s2n_stuffer_wipe(&io_pair.server_in));
EXPECT_OK(s2n_connections_set_io_stuffer_pair(new_client_conn, server_conn, &io_pair));
/* Client can send and recv as usual */
for (size_t idx = 0; idx < 1000; idx++) {
EXPECT_OK(s2n_send_and_recv_test(server_conn, new_client_conn));
EXPECT_OK(s2n_send_and_recv_test(new_client_conn, server_conn));
}
};
/* Self-talk: Server can be serialized and deserialized and continue sending and receiving data
* in TLS1.2 and TLS1.3 */
for (size_t i = 0; i < s2n_array_len(config_array); i++) {
DEFER_CLEANUP(struct s2n_connection *client_conn = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
EXPECT_NOT_NULL(client_conn);
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(client_conn, config_array[i]));
EXPECT_SUCCESS(s2n_connection_set_config(server_conn, config_array[i]));
DEFER_CLEANUP(struct s2n_test_io_stuffer_pair io_pair = { 0 }, s2n_io_stuffer_pair_free);
EXPECT_OK(s2n_io_stuffer_pair_init(&io_pair));
EXPECT_OK(s2n_connections_set_io_stuffer_pair(client_conn, server_conn, &io_pair));
EXPECT_SUCCESS(s2n_negotiate_test_server_and_client(server_conn, client_conn));
/* Preliminary send and receive */
EXPECT_OK(s2n_send_and_recv_test(server_conn, client_conn));
EXPECT_OK(s2n_send_and_recv_test(client_conn, server_conn));
uint8_t buffer[S2N_SERIALIZED_CONN_TLS12_SIZE] = { 0 };
EXPECT_SUCCESS(s2n_connection_serialize(server_conn, buffer, sizeof(buffer)));
/* Initialize new server connection and deserialize the connection */
DEFER_CLEANUP(struct s2n_connection *new_server_conn = s2n_connection_new(S2N_SERVER),
s2n_connection_ptr_free);
EXPECT_NOT_NULL(new_server_conn);
EXPECT_SUCCESS(s2n_connection_deserialize(new_server_conn, buffer, sizeof(buffer)));
/* Wipe and re-initialize IO pipes */
EXPECT_SUCCESS(s2n_stuffer_wipe(&io_pair.client_in));
EXPECT_SUCCESS(s2n_stuffer_wipe(&io_pair.server_in));
EXPECT_OK(s2n_connections_set_io_stuffer_pair(client_conn, new_server_conn, &io_pair));
/* Server can send and recv as usual */
for (size_t idx = 0; idx < 1000; idx++) {
EXPECT_OK(s2n_send_and_recv_test(new_server_conn, client_conn));
EXPECT_OK(s2n_send_and_recv_test(client_conn, new_server_conn));
}
};
/* Self-talk: Test interaction between TLS1.2 session resumption and serialization */
{
DEFER_CLEANUP(struct s2n_config *resumption_config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_SUCCESS(s2n_config_set_cipher_preferences(resumption_config, "20240501"));
EXPECT_SUCCESS(s2n_config_add_cert_chain_and_key_to_store(resumption_config, chain_and_key));
EXPECT_SUCCESS(s2n_config_disable_x509_verification(resumption_config));
EXPECT_SUCCESS(s2n_config_set_serialization_version(resumption_config, S2N_SERIALIZED_CONN_V1));
EXPECT_OK(s2n_resumption_test_ticket_key_setup(resumption_config));
uint8_t serialized_conn[S2N_SERIALIZED_CONN_TLS12_SIZE] = { 0 };
/* Initial handshake */
{
DEFER_CLEANUP(struct s2n_connection *client_conn = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
EXPECT_NOT_NULL(client_conn);
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(client_conn, resumption_config));
EXPECT_SUCCESS(s2n_connection_set_config(server_conn, resumption_config));
DEFER_CLEANUP(struct s2n_test_io_stuffer_pair io_pair = { 0 }, s2n_io_stuffer_pair_free);
EXPECT_OK(s2n_io_stuffer_pair_init(&io_pair));
EXPECT_OK(s2n_connections_set_io_stuffer_pair(client_conn, server_conn, &io_pair));
EXPECT_SUCCESS(s2n_negotiate_test_server_and_client(server_conn, client_conn));
EXPECT_EQUAL(s2n_connection_get_actual_protocol_version(server_conn), S2N_TLS12);
/* Session ticket should have been received in the handshake */
EXPECT_TRUE(s2n_connection_get_session_length(client_conn) > 0);
EXPECT_SUCCESS(s2n_connection_serialize(client_conn, serialized_conn, sizeof(serialized_conn)));
};
/* Deserialized connection has no ticket to retrieve */
{
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_deserialize(client_conn, serialized_conn, sizeof(serialized_conn)));
/* Once deserialized the session ticket is no longer available. */
EXPECT_TRUE(s2n_connection_get_session_length(client_conn) == 0);
};
};
/* Self-talk: Test interaction between TLS1.3 session resumption and serialization. */
if (s2n_is_tls13_fully_supported()) {
DEFER_CLEANUP(struct s2n_config *resumption_config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_SUCCESS(s2n_config_add_cert_chain_and_key_to_store(resumption_config, chain_and_key));
EXPECT_SUCCESS(s2n_config_disable_x509_verification(resumption_config));
EXPECT_SUCCESS(s2n_config_set_serialization_version(resumption_config, S2N_SERIALIZED_CONN_V1));
EXPECT_SUCCESS(s2n_config_set_cipher_preferences(resumption_config, "default_tls13"));
EXPECT_OK(s2n_resumption_test_ticket_key_setup(resumption_config));
/* Client is serialized. Can read a session ticket before/after deserialization and resume with it. */
{
uint8_t serialized_conn[S2N_SERIALIZED_CONN_TLS12_SIZE] = { 0 };
DEFER_CLEANUP(struct s2n_blob session_ticket_0 = { 0 }, s2n_free);
DEFER_CLEANUP(struct s2n_blob session_ticket_1 = { 0 }, s2n_free);
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, resumption_config));
/* Initial handshake */
{
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, resumption_config));
DEFER_CLEANUP(struct s2n_test_io_stuffer_pair io_pair = { 0 }, s2n_io_stuffer_pair_free);
EXPECT_OK(s2n_io_stuffer_pair_init(&io_pair));
EXPECT_OK(s2n_connections_set_io_stuffer_pair(client_conn, server_conn, &io_pair));
EXPECT_SUCCESS(s2n_negotiate_test_server_and_client(server_conn, client_conn));
EXPECT_EQUAL(s2n_connection_get_actual_protocol_version(server_conn), S2N_TLS13);
/* Client does a read here. Picks up initial ticket */
EXPECT_OK(s2n_send_and_recv_test(server_conn, client_conn));
EXPECT_OK(s2n_ticket_pickup(client_conn, &session_ticket_0));
EXPECT_SUCCESS(s2n_connection_serialize(client_conn, serialized_conn, sizeof(serialized_conn)));
};
/* Pick up ticket after deserialization */
{
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_deserialize(client_conn, serialized_conn, sizeof(serialized_conn)));
EXPECT_SUCCESS(s2n_connection_set_config(client_conn, resumption_config));
DEFER_CLEANUP(struct s2n_test_io_stuffer_pair io_pair = { 0 }, s2n_io_stuffer_pair_free);
EXPECT_OK(s2n_io_stuffer_pair_init(&io_pair));
EXPECT_OK(s2n_connections_set_io_stuffer_pair(client_conn, server_conn, &io_pair));
EXPECT_SUCCESS(s2n_connection_add_new_tickets_to_send(server_conn, 1));
EXPECT_OK(s2n_send_and_recv_test(server_conn, client_conn));
EXPECT_OK(s2n_ticket_pickup(client_conn, &session_ticket_1));
};
/* Resumption handshake with initial ticket */
{
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, resumption_config));
EXPECT_SUCCESS(s2n_connection_set_session(client_conn, session_ticket_0.data, session_ticket_0.size));
EXPECT_SUCCESS(s2n_connection_wipe(server_conn));
DEFER_CLEANUP(struct s2n_test_io_stuffer_pair io_pair = { 0 }, s2n_io_stuffer_pair_free);
EXPECT_OK(s2n_io_stuffer_pair_init(&io_pair));
EXPECT_OK(s2n_connections_set_io_stuffer_pair(client_conn, server_conn, &io_pair));
EXPECT_SUCCESS(s2n_negotiate_test_server_and_client(server_conn, client_conn));
EXPECT_FALSE(IS_FULL_HANDSHAKE(client_conn));
EXPECT_FALSE(IS_FULL_HANDSHAKE(server_conn));
};
/* Successful resumption handshake with second ticket */
{
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, resumption_config));
EXPECT_SUCCESS(s2n_connection_set_session(client_conn, session_ticket_1.data, session_ticket_1.size));
EXPECT_SUCCESS(s2n_connection_wipe(server_conn));
DEFER_CLEANUP(struct s2n_test_io_stuffer_pair io_pair = { 0 }, s2n_io_stuffer_pair_free);
EXPECT_OK(s2n_io_stuffer_pair_init(&io_pair));
EXPECT_OK(s2n_connections_set_io_stuffer_pair(client_conn, server_conn, &io_pair));
EXPECT_SUCCESS(s2n_negotiate_test_server_and_client(server_conn, client_conn));
EXPECT_FALSE(IS_FULL_HANDSHAKE(client_conn));
EXPECT_FALSE(IS_FULL_HANDSHAKE(server_conn));
};
};
/* Server is serialized. Can write a session ticket before/after deserialization and resumption can
* occur with it. */
{
uint8_t serialized_conn[S2N_SERIALIZED_CONN_TLS12_SIZE] = { 0 };
DEFER_CLEANUP(struct s2n_blob session_ticket_0 = { 0 }, s2n_free);
DEFER_CLEANUP(struct s2n_blob session_ticket_1 = { 0 }, s2n_free);
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, resumption_config));
/* Initial handshake */
{
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, resumption_config));
DEFER_CLEANUP(struct s2n_test_io_stuffer_pair io_pair = { 0 }, s2n_io_stuffer_pair_free);
EXPECT_OK(s2n_io_stuffer_pair_init(&io_pair));
EXPECT_OK(s2n_connections_set_io_stuffer_pair(client_conn, server_conn, &io_pair));
EXPECT_SUCCESS(s2n_negotiate_test_server_and_client(server_conn, client_conn));
EXPECT_EQUAL(s2n_connection_get_actual_protocol_version(server_conn), S2N_TLS13);
/* Client picks up the first ticket */
EXPECT_OK(s2n_send_and_recv_test(server_conn, client_conn));
EXPECT_OK(s2n_ticket_pickup(client_conn, &session_ticket_0));
EXPECT_SUCCESS(s2n_connection_serialize(server_conn, serialized_conn, sizeof(serialized_conn)));
};
/* Send ticket after deserialization */
{
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_deserialize(server_conn, serialized_conn, sizeof(serialized_conn)));
EXPECT_SUCCESS(s2n_connection_set_config(server_conn, resumption_config));
DEFER_CLEANUP(struct s2n_test_io_stuffer_pair io_pair = { 0 }, s2n_io_stuffer_pair_free);
EXPECT_OK(s2n_io_stuffer_pair_init(&io_pair));
EXPECT_OK(s2n_connections_set_io_stuffer_pair(client_conn, server_conn, &io_pair));
EXPECT_OK(s2n_send_and_recv_test(server_conn, client_conn));
EXPECT_OK(s2n_ticket_pickup(client_conn, &session_ticket_1));
};
/* Resumption handshake with initial ticket */
{
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, resumption_config));
EXPECT_SUCCESS(s2n_connection_wipe(client_conn));
EXPECT_SUCCESS(s2n_connection_set_session(client_conn, session_ticket_0.data, session_ticket_0.size));
DEFER_CLEANUP(struct s2n_test_io_stuffer_pair io_pair = { 0 }, s2n_io_stuffer_pair_free);
EXPECT_OK(s2n_io_stuffer_pair_init(&io_pair));
EXPECT_OK(s2n_connections_set_io_stuffer_pair(client_conn, server_conn, &io_pair));
EXPECT_SUCCESS(s2n_negotiate_test_server_and_client(server_conn, client_conn));
EXPECT_FALSE(IS_FULL_HANDSHAKE(client_conn));
EXPECT_FALSE(IS_FULL_HANDSHAKE(server_conn));
};
/* Resumption handshake with second ticket */
{
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, resumption_config));
EXPECT_SUCCESS(s2n_connection_wipe(client_conn));
EXPECT_SUCCESS(s2n_connection_set_session(client_conn, session_ticket_1.data, session_ticket_1.size));
DEFER_CLEANUP(struct s2n_test_io_stuffer_pair io_pair = { 0 }, s2n_io_stuffer_pair_free);
EXPECT_OK(s2n_io_stuffer_pair_init(&io_pair));
EXPECT_OK(s2n_connections_set_io_stuffer_pair(client_conn, server_conn, &io_pair));
EXPECT_SUCCESS(s2n_negotiate_test_server_and_client(server_conn, client_conn));
EXPECT_FALSE(IS_FULL_HANDSHAKE(client_conn));
EXPECT_FALSE(IS_FULL_HANDSHAKE(server_conn));
};
};
};
/* Self talk: Test interaction between key update and serialization */
if (s2n_is_tls13_fully_supported()) {
/* Deserialized client can do a keyupdate */
{
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, tls13_config));
uint8_t serialized_conn[S2N_SERIALIZED_CONN_TLS12_SIZE] = { 0 };
/* Initial handshake */
{
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, tls13_config));
DEFER_CLEANUP(struct s2n_test_io_stuffer_pair io_pair = { 0 }, s2n_io_stuffer_pair_free);
EXPECT_OK(s2n_io_stuffer_pair_init(&io_pair));
EXPECT_OK(s2n_connections_set_io_stuffer_pair(client_conn, server_conn, &io_pair));
EXPECT_SUCCESS(s2n_negotiate_test_server_and_client(server_conn, client_conn));
EXPECT_EQUAL(s2n_connection_get_actual_protocol_version(server_conn), S2N_TLS13);
/* Preliminary send and receive */
EXPECT_OK(s2n_send_and_recv_test(server_conn, client_conn));
EXPECT_OK(s2n_send_and_recv_test(client_conn, server_conn));
EXPECT_SUCCESS(s2n_connection_serialize(client_conn, serialized_conn, sizeof(serialized_conn)));
};
/* Deserialize and keyupdate */
{
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_deserialize(client_conn, serialized_conn, sizeof(serialized_conn)));
DEFER_CLEANUP(struct s2n_test_io_stuffer_pair io_pair = { 0 }, s2n_io_stuffer_pair_free);
EXPECT_OK(s2n_io_stuffer_pair_init(&io_pair));
EXPECT_OK(s2n_connections_set_io_stuffer_pair(client_conn, server_conn, &io_pair));
EXPECT_OK(s2n_test_key_update(client_conn, server_conn));
};
};
/* Deserialized server can do a keyupdate */
{
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, tls13_config));
uint8_t serialized_conn[S2N_SERIALIZED_CONN_TLS12_SIZE] = { 0 };
/* Initial handshake */
{
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, tls13_config));
DEFER_CLEANUP(struct s2n_test_io_stuffer_pair io_pair = { 0 }, s2n_io_stuffer_pair_free);
EXPECT_OK(s2n_io_stuffer_pair_init(&io_pair));
EXPECT_OK(s2n_connections_set_io_stuffer_pair(client_conn, server_conn, &io_pair));
EXPECT_SUCCESS(s2n_negotiate_test_server_and_client(server_conn, client_conn));
EXPECT_EQUAL(s2n_connection_get_actual_protocol_version(server_conn), S2N_TLS13);
/* Preliminary send and receive */
EXPECT_OK(s2n_send_and_recv_test(server_conn, client_conn));
EXPECT_OK(s2n_send_and_recv_test(client_conn, server_conn));
EXPECT_SUCCESS(s2n_connection_serialize(server_conn, serialized_conn, sizeof(serialized_conn)));
};
/* Deserialize and keyupdate */
{
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_deserialize(server_conn, serialized_conn, sizeof(serialized_conn)));
DEFER_CLEANUP(struct s2n_test_io_stuffer_pair io_pair = { 0 }, s2n_io_stuffer_pair_free);
EXPECT_OK(s2n_io_stuffer_pair_init(&io_pair));
EXPECT_OK(s2n_connections_set_io_stuffer_pair(client_conn, server_conn, &io_pair));
EXPECT_OK(s2n_test_key_update(client_conn, server_conn));
};
};
};
/* Test: Renegotiation and serialization cannot both be set.
*
* Renegotiation is not available after serialization/deserialization.
* The information needed to perform renegotiation (i.e. client/server finished verify data
* and secure renegotiation flag) isn't stored during the serialization process and therefore
* isn't available post-deserialization.
*
* We could add that data to the serialized struct in the future, but for now, the user will get
* an error if they attempt to configure renegotiation after serialization, and vice versa.
*/
{
DEFER_CLEANUP(struct s2n_config *config = s2n_config_new(), s2n_config_ptr_free);
DEFER_CLEANUP(struct s2n_connection *client_conn = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
EXPECT_NOT_NULL(client_conn);
/* Setting a renegotiation callback means you cannot set a serialization version. */
EXPECT_SUCCESS(s2n_config_set_renegotiate_request_cb(config, s2n_test_reneg_cb, NULL));
EXPECT_FAILURE_WITH_ERRNO(s2n_config_set_serialization_version(config, S2N_SERIALIZED_CONN_V1),
S2N_ERR_INVALID_STATE);
/* Reset renegotiate cb */
EXPECT_SUCCESS(s2n_config_set_renegotiate_request_cb(config, NULL, NULL));
/* Setting a serialized version means that you cannot set a renegotiation callback. */
EXPECT_SUCCESS(s2n_config_set_serialization_version(config, S2N_SERIALIZED_CONN_V1));
EXPECT_FAILURE_WITH_ERRNO(s2n_config_set_renegotiate_request_cb(config, s2n_test_reneg_cb,
NULL),
S2N_ERR_INVALID_STATE);
};
END_TEST();
return 0;
}
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