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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 <stdbool.h>
#include "tls/s2n_connection.h"
extern uint8_t s2n_unknown_protocol_version;
extern uint8_t s2n_highest_protocol_version;
extern int s2n_flush(struct s2n_connection *conn, s2n_blocked_status * more);
S2N_RESULT s2n_client_hello_request_validate(struct s2n_connection *conn);
S2N_RESULT s2n_client_hello_request_recv(struct s2n_connection *conn);
extern int s2n_client_hello_send(struct s2n_connection *conn);
extern int s2n_client_hello_recv(struct s2n_connection *conn);
extern int s2n_establish_session(struct s2n_connection *conn);
extern int s2n_sslv2_client_hello_recv(struct s2n_connection *conn);
extern int s2n_server_hello_retry_send(struct s2n_connection *conn);
extern int s2n_server_hello_retry_recv(struct s2n_connection *conn);
extern int s2n_server_hello_write_message(struct s2n_connection *conn);
extern int s2n_server_hello_send(struct s2n_connection *conn);
extern int s2n_server_hello_recv(struct s2n_connection *conn);
extern int s2n_encrypted_extensions_send(struct s2n_connection *conn);
extern int s2n_encrypted_extensions_recv(struct s2n_connection *conn);
extern int s2n_next_protocol_send(struct s2n_connection *conn);
extern int s2n_next_protocol_recv(struct s2n_connection *conn);
extern int s2n_server_cert_send(struct s2n_connection *conn);
extern int s2n_server_cert_recv(struct s2n_connection *conn);
extern int s2n_server_status_send(struct s2n_connection *conn);
extern int s2n_server_status_recv(struct s2n_connection *conn);
extern int s2n_server_key_send(struct s2n_connection *conn);
extern int s2n_server_key_recv(struct s2n_connection *conn);
extern int s2n_cert_req_recv(struct s2n_connection *conn);
extern int s2n_cert_req_send(struct s2n_connection *conn);
extern int s2n_tls13_cert_req_send(struct s2n_connection *conn);
extern int s2n_tls13_cert_req_recv(struct s2n_connection *conn);
extern int s2n_server_done_send(struct s2n_connection *conn);
extern int s2n_server_done_recv(struct s2n_connection *conn);
extern int s2n_client_cert_recv(struct s2n_connection *conn);
extern int s2n_client_cert_send(struct s2n_connection *conn);
extern int s2n_client_key_send(struct s2n_connection *conn);
extern int s2n_client_key_recv(struct s2n_connection *conn);
extern int s2n_client_cert_verify_recv(struct s2n_connection *conn);
extern int s2n_client_cert_verify_send(struct s2n_connection *conn);
extern int s2n_tls13_cert_verify_recv(struct s2n_connection *conn);
extern int s2n_tls13_cert_verify_send(struct s2n_connection *conn);
extern int s2n_server_nst_send(struct s2n_connection *conn);
extern int s2n_server_nst_recv(struct s2n_connection *conn);
S2N_RESULT s2n_tls13_server_nst_send(struct s2n_connection *conn, s2n_blocked_status *blocked);
S2N_RESULT s2n_tls13_server_nst_write(struct s2n_connection *conn, struct s2n_stuffer *output);
S2N_RESULT s2n_tls13_server_nst_recv(struct s2n_connection *conn, struct s2n_stuffer *input);
extern int s2n_ccs_send(struct s2n_connection *conn);
extern int s2n_basic_ccs_recv(struct s2n_connection *conn);
extern int s2n_server_ccs_recv(struct s2n_connection *conn);
extern int s2n_client_ccs_recv(struct s2n_connection *conn);
extern int s2n_client_finished_send(struct s2n_connection *conn);
extern int s2n_client_finished_recv(struct s2n_connection *conn);
extern int s2n_server_finished_send(struct s2n_connection *conn);
extern int s2n_server_finished_recv(struct s2n_connection *conn);
extern int s2n_tls13_client_finished_send(struct s2n_connection *conn);
extern int s2n_tls13_client_finished_recv(struct s2n_connection *conn);
extern int s2n_tls13_server_finished_send(struct s2n_connection *conn);
extern int s2n_tls13_server_finished_recv(struct s2n_connection *conn);
extern int s2n_end_of_early_data_send(struct s2n_connection *conn);
extern int s2n_end_of_early_data_recv(struct s2n_connection *conn);
extern int s2n_process_client_hello(struct s2n_connection *conn);
extern int s2n_handshake_write_header(struct s2n_stuffer *out, uint8_t message_type);
extern int s2n_handshake_finish_header(struct s2n_stuffer *out);
S2N_RESULT s2n_handshake_parse_header(struct s2n_stuffer *io, uint8_t *message_type, uint32_t *length);
extern int s2n_read_full_record(struct s2n_connection *conn, uint8_t * record_type, int *isSSLv2);
extern int s2n_recv_close_notify(struct s2n_connection *conn, s2n_blocked_status * blocked);
extern uint16_t mfl_code_to_length[5];
#define s2n_server_received_server_name(conn) ((conn)->server_name[0] != 0)
#define s2n_server_can_send_ec_point_formats(conn) \
((conn)->ec_point_formats)
#define s2n_server_can_send_ocsp(conn) ((conn)->mode == S2N_SERVER && \
(conn)->status_type == S2N_STATUS_REQUEST_OCSP && \
(conn)->handshake_params.our_chain_and_key && \
(conn)->handshake_params.our_chain_and_key->ocsp_status.size > 0)
#define s2n_server_sent_ocsp(conn) ((conn)->mode == S2N_CLIENT && \
(conn)->status_type == S2N_STATUS_REQUEST_OCSP)
#define s2n_server_can_send_sct_list(conn) ((conn)->mode == S2N_SERVER && \
(conn)->ct_level_requested == S2N_CT_SUPPORT_REQUEST && \
(conn)->handshake_params.our_chain_and_key && \
(conn)->handshake_params.our_chain_and_key->sct_list.size > 0)
#define s2n_server_sending_nst(conn) ((conn)->config->use_tickets && \
(conn)->session_ticket_status == S2N_NEW_TICKET)
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