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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_client_signature_algorithms.h"
#include <stdint.h>
#include <sys/param.h>
#include "tls/s2n_signature_algorithms.h"
#include "tls/s2n_tls.h"
#include "tls/s2n_tls_parameters.h"
#include "utils/s2n_safety.h"
static bool s2n_client_signature_algorithms_should_send(struct s2n_connection *conn);
static int s2n_client_signature_algorithms_send(struct s2n_connection *conn, struct s2n_stuffer *extension);
static int s2n_client_signature_algorithms_recv(struct s2n_connection *conn, struct s2n_stuffer *extension);
const s2n_extension_type s2n_client_signature_algorithms_extension = {
.iana_value = TLS_EXTENSION_SIGNATURE_ALGORITHMS,
.is_response = false,
.send = s2n_client_signature_algorithms_send,
.recv = s2n_client_signature_algorithms_recv,
.should_send = s2n_client_signature_algorithms_should_send,
.if_missing = s2n_extension_noop_if_missing,
};
static bool s2n_client_signature_algorithms_should_send(struct s2n_connection *conn)
{
return s2n_connection_get_protocol_version(conn) >= S2N_TLS12;
}
static int s2n_client_signature_algorithms_send(struct s2n_connection *conn, struct s2n_stuffer *extension)
{
POSIX_GUARD_RESULT(s2n_signature_algorithms_supported_list_send(conn, extension));
return S2N_SUCCESS;
}
static int s2n_client_signature_algorithms_recv(struct s2n_connection *conn, struct s2n_stuffer *extension)
{
return s2n_recv_supported_sig_scheme_list(extension, &conn->handshake_params.client_sig_hash_algs);
}
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