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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/extensions/s2n_server_sct_list.h"
#include "stuffer/s2n_stuffer.h"
#include "tls/s2n_connection.h"
#include "tls/s2n_tls.h"
#include "utils/s2n_blob.h"
#include "utils/s2n_safety.h"
static bool s2n_server_sct_list_should_send(struct s2n_connection *conn);
static int s2n_server_sct_list_send(struct s2n_connection *conn, struct s2n_stuffer *out);
static int s2n_server_sct_list_recv(struct s2n_connection *conn, struct s2n_stuffer *extension);
const s2n_extension_type s2n_server_sct_list_extension = {
.iana_value = TLS_EXTENSION_SCT_LIST,
.is_response = true,
.send = s2n_server_sct_list_send,
.recv = s2n_server_sct_list_recv,
.should_send = s2n_server_sct_list_should_send,
.if_missing = s2n_extension_noop_if_missing,
};
static bool s2n_server_sct_list_should_send(struct s2n_connection *conn)
{
return s2n_server_can_send_sct_list(conn);
}
int s2n_server_sct_list_send(struct s2n_connection *conn, struct s2n_stuffer *out)
{
POSIX_ENSURE_REF(conn);
struct s2n_blob *sct_list = &conn->handshake_params.our_chain_and_key->sct_list;
POSIX_ENSURE_REF(sct_list);
POSIX_GUARD(s2n_stuffer_write(out, sct_list));
return S2N_SUCCESS;
}
int s2n_server_sct_list_recv(struct s2n_connection *conn, struct s2n_stuffer *extension)
{
POSIX_ENSURE_REF(conn);
struct s2n_blob sct_list = { 0 };
size_t data_available = s2n_stuffer_data_available(extension);
POSIX_GUARD(s2n_blob_init(&sct_list,
s2n_stuffer_raw_read(extension, data_available),
data_available));
POSIX_ENSURE_REF(sct_list.data);
POSIX_GUARD(s2n_dup(&sct_list, &conn->ct_response));
return S2N_SUCCESS;
}
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