toxcore/toxcore/LAN_discovery.h

56 lines
1.1 KiB
C

/* 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"
/**
* Interval in seconds between LAN discovery packet sending.
*/
#define LAN_DISCOVERY_INTERVAL 10
typedef struct Broadcast_Info Broadcast_Info;
/**
* Send a LAN discovery pcaket to the broadcast address with port port.
*
* @return true on success, false on failure.
*/
non_null()
bool lan_discovery_send(Networking_Core *net, const Broadcast_Info *broadcast, const uint8_t *dht_pk, uint16_t port);
/**
* Sets up packet handlers.
*/
non_null()
Broadcast_Info *lan_discovery_init(DHT *dht);
/**
* Clear packet handlers.
*/
non_null()
void lan_discovery_kill(DHT *dht, Broadcast_Info *info);
/**
* Is IP a local ip or not.
*/
non_null()
bool ip_is_local(const IP *ip);
/**
* Checks if a given IP isn't routable.
*
* @return true if ip is a LAN ip, false if it is not.
*/
non_null()
bool ip_is_lan(const IP *ip);
#endif // C_TOXCORE_TOXCORE_LAN_DISCOVERY_H