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/* SPDX-License-Identifier: GPL-3.0-or-later
* Copyright © 2016-2018 The TokTok team.
* Copyright © 2013 Tox project.
*/
/*
* LAN discovery implementation.
*/
#ifndef C_TOXCORE_TOXCORE_LAN_DISCOVERY_H
#define C_TOXCORE_TOXCORE_LAN_DISCOVERY_H
#include "DHT.h"
#ifndef DHT_DEFINED
#define DHT_DEFINED
typedef struct DHT DHT;
#endif /* DHT_DEFINED */
#ifndef IP_DEFINED
#define IP_DEFINED
typedef struct IP IP;
#endif /* IP_DEFINED */
/**
* Interval in seconds between LAN discovery packet sending.
*/
#define LAN_DISCOVERY_INTERVAL 10
/**
* Send a LAN discovery pcaket to the broadcast address with port port.
*/
int32_t lan_discovery_send(uint16_t port, DHT *dht);
/**
* Sets up packet handlers.
*/
void lan_discovery_init(DHT *dht);
/**
* Clear packet handlers.
*/
void lan_discovery_kill(DHT *dht);
/**
* Is IP a local ip or not.
*/
bool ip_is_local(IP ip);
/**
* Checks if a given IP isn't routable.
*
* @return true if ip is a LAN ip, false if it is not.
*/
bool ip_is_lan(IP ip);
#endif // C_TOXCORE_TOXCORE_LAN_DISCOVERY_H
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