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105 lines
3.1 KiB
105 lines
3.1 KiB
/* |
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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_UNIXETHERNETTAP_HPP |
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#define ZT_UNIXETHERNETTAP_HPP |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <stdexcept> |
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#include "EthernetTap.hpp" |
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#include "Mutex.hpp" |
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#include "Thread.hpp" |
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namespace ZeroTier { |
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class RuntimeEnvironment; |
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/** |
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* Tap device using Unix taps (contains special case code for Linux, OSX, etc. but they're all similar) |
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*/ |
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class UnixEthernetTap : public EthernetTap |
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{ |
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public: |
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/** |
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* Construct a new TAP device |
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* |
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* Handler arguments: arg,from,to,etherType,data |
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* |
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* @param renv Runtime environment |
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* @param tryToGetDevice Unix device name (e.g. zt0) |
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* @param mac MAC address of device |
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* @param mtu MTU of device |
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* @param desc If non-NULL, a description (not used on all OSes) |
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* @param handler Handler function to be called when data is received from the tap |
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* @param arg First argument to handler function |
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* @throws std::runtime_error Unable to allocate tap device |
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*/ |
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UnixEthernetTap( |
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const RuntimeEnvironment *renv, |
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const char *tryToGetDevice, |
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const MAC &mac, |
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unsigned int mtu, |
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void (*handler)(void *,const MAC &,const MAC &,unsigned int,const Buffer<4096> &), |
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void *arg) |
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throw(std::runtime_error); |
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virtual ~UnixEthernetTap(); |
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virtual void setEnabled(bool en); |
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virtual bool enabled() const; |
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virtual void setDisplayName(const char *dn); |
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virtual bool addIP(const InetAddress &ip); |
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virtual bool removeIP(const InetAddress &ip); |
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virtual std::set<InetAddress> ips() const; |
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virtual void put(const MAC &from,const MAC &to,unsigned int etherType,const void *data,unsigned int len); |
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virtual std::string deviceName() const; |
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virtual std::string persistentId() const; |
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virtual bool updateMulticastGroups(std::set<MulticastGroup> &groups); |
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/** |
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* Thread main method; do not call elsewhere |
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*/ |
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void threadMain() |
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throw(); |
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private: |
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const RuntimeEnvironment *_r; |
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void (*_handler)(void *,const MAC &,const MAC &,unsigned int,const Buffer<4096> &); |
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void *_arg; |
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Thread _thread; |
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std::string _dev; |
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int _fd; |
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int _shutdownSignalPipe[2]; |
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volatile bool _enabled; |
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}; |
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} // namespace ZeroTier |
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#endif
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