/*
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * https://opensource.org/license/bsd-3-clause
 *
 * Copyright (C) 2011, 2012, 2013 Citrix Systems
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the project nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef __UCLIENT_ECHO__
#define __UCLIENT_ECHO__

#include "session.h"
#include "stun_buffer.h"

#include <stdint.h>

#ifdef __cplusplus
extern "C" {
#endif

//////////////////////////////////////////////

typedef enum {
  UCLIENT_LOAD_MODE_NONE = 0,
  UCLIENT_LOAD_MODE_PACKET_FLOOD,
  UCLIENT_LOAD_MODE_ALLOC_FLOOD,
  UCLIENT_LOAD_MODE_INVALID_FLOOD
} uclient_load_mode;

#define STOPPING_TIME (10)
#define STARTING_TCP_RELAY_TIME (30)

extern int clmessage_length;
extern bool do_not_use_channel;
extern int clnet_verbose;
extern bool use_tcp;
extern bool use_sctp;
extern bool use_secure;
extern char cert_file[1025];
extern char pkey_file[1025];
extern bool hang_on;
extern bool c2c;
extern ioa_addr peer_addr;
extern bool no_rtcp;
extern int default_address_family;
extern bool dont_fragment;
extern uint8_t g_uname[STUN_MAX_USERNAME_SIZE + 1];
extern password_t g_upwd;
extern char g_auth_secret[1025];
extern bool g_use_auth_secret_with_timestamp;
extern bool use_fingerprints;
extern SSL_CTX *root_tls_ctx[32];
extern int root_tls_ctx_num;
extern int RTP_PACKET_INTERVAL;
extern uint8_t relay_transport;
extern unsigned char client_ifname[1025];
extern struct event_base *client_event_base;
extern bool passive_tcp;
extern bool mandatory_channel_padding;
extern bool negative_test;
extern bool negative_protocol_test;
extern bool dos;
extern bool random_disconnect;
extern SHATYPE shatype;
extern bool mobility;
extern bool no_permissions;
extern bool extra_requests;
extern band_limit_t bps;
extern bool dual_allocation;
extern bool unique_client_ports;
extern uclient_load_mode load_mode;

extern char origin[STUN_MAX_ORIGIN_SIZE + 1];

extern int oauth;
extern oauth_key okey_array[3];

#define UCLIENT_SESSION_LIFETIME (777)
#define OAUTH_SESSION_LIFETIME (555)

#define is_TCP_relay() (relay_transport == STUN_ATTRIBUTE_TRANSPORT_TCP_VALUE)
#define is_packet_flood_mode() (load_mode == UCLIENT_LOAD_MODE_PACKET_FLOOD)
#define is_alloc_flood_mode() (load_mode == UCLIENT_LOAD_MODE_ALLOC_FLOOD)
#define is_invalid_flood_mode() (load_mode == UCLIENT_LOAD_MODE_INVALID_FLOOD)
#define is_load_generator_mode() (load_mode != UCLIENT_LOAD_MODE_NONE)

void start_mclient(const char *remote_address, uint16_t port, const unsigned char *ifname, const char *local_address,
                   int messagenumber, int mclient);

int send_buffer(app_ur_conn_info *clnet_info, stun_buffer *message, bool data_connection, app_tcp_conn_info *atc);
int recv_buffer(app_ur_conn_info *clnet_info, stun_buffer *message, bool sync, bool data_connection,
                app_tcp_conn_info *atc, stun_buffer *request_message);

void client_input_handler(evutil_socket_t fd, short what, void *arg);

turn_credential_type get_turn_credentials_type(void);

int add_integrity(app_ur_conn_info *clnet_info, stun_buffer *message);
int check_integrity(app_ur_conn_info *clnet_info, stun_buffer *message);

SOCKET_TYPE get_socket_type(void);

////////////////////////////////////////////

#ifdef __cplusplus
}
#endif

#endif //__UCLIENT_ECHO__
