mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2024-12-22 06:17:48 +00:00
104 lines
2.8 KiB
C++
104 lines
2.8 KiB
C++
|
/*
|
||
|
|
* ZeroTier One - Global Peer to Peer Ethernet
|
||
|
|
* Copyright (C) 2012-2013 ZeroTier Networks LLC
|
||
|
|
*
|
||
|
|
* This program is free software: you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License as published by
|
||
|
|
* the Free Software Foundation, either version 3 of the License, or
|
||
|
|
* (at your option) any later version.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
* GNU General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
*
|
||
|
|
* --
|
||
|
|
*
|
||
|
|
* ZeroTier may be used and distributed under the terms of the GPLv3, which
|
||
|
|
* are available at: http://www.gnu.org/licenses/gpl-3.0.html
|
||
|
|
*
|
||
|
|
* If you would like to embed ZeroTier into a commercial application or
|
||
|
|
* redistribute it in a modified binary form, please contact ZeroTier Networks
|
||
|
|
* LLC. Start here: http://www.zerotier.com/
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _ZT_UDPSOCKET_HPP
|
||
|
|
#define _ZT_UDPSOCKET_HPP
|
||
|
|
|
||
|
|
#include <stdexcept>
|
||
|
|
#include "Thread.hpp"
|
||
|
|
#include "InetAddress.hpp"
|
||
|
|
#include "Mutex.hpp"
|
||
|
|
|
||
|
|
namespace ZeroTier {
|
||
|
|
|
||
|
|
/**
|
||
|
|
* A local UDP socket
|
||
|
|
*
|
||
|
|
* The socket listens in a background thread and sends packets to Switch.
|
||
|
|
*/
|
||
|
|
class UdpSocket : protected Thread
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
/**
|
||
|
|
* Create and bind a local UDP socket
|
||
|
|
*
|
||
|
|
* @param localPort Local port to listen to
|
||
|
|
* @param ipv6 If true, bind this as an IPv6 socket, otherwise IPv4
|
||
|
|
* @param packetHandler Function to call when packets are read
|
||
|
|
* @param arg First argument (after self) to function
|
||
|
|
* @throws std::runtime_error Unable to bind
|
||
|
|
*/
|
||
|
|
UdpSocket(
|
||
|
|
int localPort,
|
||
|
|
bool ipv6,
|
||
|
|
void (*packetHandler)(UdpSocket *,void *,const InetAddress &,const void *,unsigned int),
|
||
|
|
void *arg)
|
||
|
|
throw(std::runtime_error);
|
||
|
|
|
||
|
|
virtual ~UdpSocket();
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @return Locally bound port
|
||
|
|
*/
|
||
|
|
inline int localPort() const throw() { return _localPort; }
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @return True if this is an IPv6 socket
|
||
|
|
*/
|
||
|
|
inline bool v6() const throw() { return _v6; }
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Send a packet
|
||
|
|
*
|
||
|
|
* Attempt to send V6 on a V4 or V4 on a V6 socket will return false.
|
||
|
|
*
|
||
|
|
* @param to Destination IP/port
|
||
|
|
* @param data Data to send
|
||
|
|
* @param len Length of data in bytes
|
||
|
|
* @param hopLimit IP hop limit for UDP packet or -1 for max (max: 255)
|
||
|
|
* @return True if packet successfully sent to link layer
|
||
|
|
*/
|
||
|
|
bool send(const InetAddress &to,const void *data,unsigned int len,int hopLimit)
|
||
|
|
throw();
|
||
|
|
|
||
|
|
protected:
|
||
|
|
virtual void main()
|
||
|
|
throw();
|
||
|
|
|
||
|
|
private:
|
||
|
|
void (*_packetHandler)(UdpSocket *,void *,const InetAddress &,const void *,unsigned int);
|
||
|
|
void *_arg;
|
||
|
|
int _localPort;
|
||
|
|
int _sock;
|
||
|
|
bool _v6;
|
||
|
|
Mutex _sendLock;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace ZeroTier
|
||
|
|
|
||
|
|
#endif
|