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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.
*/
#pragma once
#include <stdint.h>
#include "api/s2n.h"
#include "stuffer/s2n_stuffer.h"
#include "tls/extensions/s2n_extension_list.h"
#include "utils/s2n_array.h"
/*
* the 'data' pointers in the below blobs
* point to data in the raw_message stuffer
*/
struct s2n_client_hello {
struct s2n_stuffer raw_message;
s2n_parsed_extensions_list extensions;
struct s2n_blob cipher_suites;
struct s2n_blob session_id;
unsigned int callback_invoked:1;
unsigned int callback_async_blocked:1;
unsigned int callback_async_done:1;
/*
* Marks if the client hello has been parsed.
*
* While a client_hello is only parsed once, it is possible to parse
* two different client_hello during a single handshake if the server
* issues a hello retry.
*/
unsigned int parsed:1;
};
int s2n_client_hello_free(struct s2n_client_hello *client_hello);
extern struct s2n_client_hello *s2n_connection_get_client_hello(struct s2n_connection *conn);
extern ssize_t s2n_client_hello_get_raw_message_length(struct s2n_client_hello *ch);
extern ssize_t s2n_client_hello_get_raw_message(struct s2n_client_hello *ch, uint8_t *out, uint32_t max_length);
extern ssize_t s2n_client_hello_get_cipher_suites_length(struct s2n_client_hello *ch);
extern ssize_t s2n_client_hello_get_cipher_suites(struct s2n_client_hello *ch, uint8_t *out, uint32_t max_length);
extern ssize_t s2n_client_hello_get_extensions_length(struct s2n_client_hello *ch);
extern ssize_t s2n_client_hello_get_extensions(struct s2n_client_hello *ch, uint8_t *out, uint32_t max_length);
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