mirror of
https://github.com/zerotier/ZeroTierOne.git
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98 lines
3.0 KiB
C++
98 lines
3.0 KiB
C++
/*
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* ZeroTier One - Global Peer to Peer Ethernet
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* Copyright (C) 2011-2014 ZeroTier Networks LLC
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*
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* This program 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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* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* --
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*
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* ZeroTier may be used and distributed under the terms of the GPLv3, which
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* are available at: http://www.gnu.org/licenses/gpl-3.0.html
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*
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* If you would like to embed ZeroTier into a commercial application or
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* redistribute it in a modified binary form, please contact ZeroTier Networks
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* LLC. Start here: http://www.zerotier.com/
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*/
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#ifndef ZT_IPCLISTENER_HPP
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#define ZT_IPCLISTENER_HPP
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#include "Constants.hpp"
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#include "Thread.hpp"
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#include "NonCopyable.hpp"
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#include "IpcConnection.hpp"
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#include <string>
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#include <stdexcept>
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#ifdef __WINDOWS__
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#include <WinSock2.h>
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#include <Windows.h>
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#define ZT_IPC_ENDPOINT_BASE "\\\\.\\pipe\\ZeroTierOne-"
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#else
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#define ZT_IPC_ENDPOINT_BASE "/tmp/.ZeroTierOne-"
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#endif
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namespace ZeroTier {
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/**
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* IPC incoming connection listener (Unix domain sockets or named pipes on Windows)
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*/
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class IpcListener : NonCopyable
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{
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public:
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/**
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* Listen for IPC connections
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*
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* The supplied handler is passed on to incoming instances of IpcConnection. When
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* a connection is first opened, it is called with IPC_EVENT_NEW_CONNECTION. The
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* receiver must take ownership of the connection object. When a connection is
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* closed, IPC_EVENT_CONNECTION_CLOSING is generated. At this point (or after) the
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* receiver must delete the object. IPC_EVENT_COMMAND is generated when lines of
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* text are read, and in this cases the last argument is not NULL. No closed event
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* is generated in the event of manual delete if the connection is still open.
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*
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* Yeah, this whole callback model sort of sucks. Might rethink and replace with
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* some kind of actor model or something if it gets too unweildy. But for now the
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* use cases are simple enough that it's not too bad.
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*
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* @param commandHandler Function to call for each command
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* @param arg First argument to pass to handler
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* @throws std::runtime_error Unable to bind to endpoint
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*/
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IpcListener(const char *ep,void (*commandHandler)(void *,IpcConnection *,IpcConnection::EventType,const char *),void *arg);
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~IpcListener();
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void threadMain()
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throw();
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private:
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std::string _endpoint;
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void (*_handler)(void *,IpcConnection *,IpcConnection::EventType,const char *);
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void *_arg;
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#ifdef __WINDOWS__
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volatile HANDLE _sock;
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volatile bool _die;
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Mutex _sock_m;
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#else
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volatile int _sock;
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#endif
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Thread _thread;
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};
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} // namespace ZeroTier
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#endif
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