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74 lines
1.7 KiB
C
74 lines
1.7 KiB
C
/*
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* LAN discovery implementation.
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*/
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/*
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* Copyright © 2016-2018 The TokTok team.
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* Copyright © 2013 Tox project.
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*
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* This file is part of Tox, the free peer to peer instant messenger.
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*
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* Tox is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Tox is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Tox. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef C_TOXCORE_TOXCORE_LAN_DISCOVERY_H
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#define C_TOXCORE_TOXCORE_LAN_DISCOVERY_H
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#include "DHT.h"
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#ifndef DHT_DEFINED
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#define DHT_DEFINED
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typedef struct DHT DHT;
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#endif /* DHT_DEFINED */
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#ifndef IP_DEFINED
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#define IP_DEFINED
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typedef struct IP IP;
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#endif /* IP_DEFINED */
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/**
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* Interval in seconds between LAN discovery packet sending.
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*/
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#define LAN_DISCOVERY_INTERVAL 10
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uint32_t lan_discovery_interval(void);
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/**
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* Send a LAN discovery pcaket to the broadcast address with port port.
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*/
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int32_t lan_discovery_send(uint16_t port, DHT *dht);
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/**
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* Sets up packet handlers.
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*/
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void lan_discovery_init(DHT *dht);
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/**
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* Clear packet handlers.
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*/
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void lan_discovery_kill(DHT *dht);
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/**
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* Is IP a local ip or not.
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*/
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bool ip_is_local(IP ip);
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/**
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* Checks if a given IP isn't routable.
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*
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* @return true if ip is a LAN ip, false if it is not.
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*/
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bool ip_is_lan(IP ip);
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#endif // C_TOXCORE_TOXCORE_LAN_DISCOVERY_H
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