mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2024-12-24 07:06:39 +00:00
133 lines
3.6 KiB
C++
133 lines
3.6 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_TESTETHERNETTAP_HPP
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#define ZT_TESTETHERNETTAP_HPP
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <string>
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#include "../node/Constants.hpp"
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#include "../node/EthernetTap.hpp"
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#include "../node/AtomicCounter.hpp"
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#include "../node/SharedPtr.hpp"
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#include "../node/Thread.hpp"
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#include "../node/Mutex.hpp"
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#include "MTQ.hpp"
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namespace ZeroTier {
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class TestEthernetTapFactory;
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/**
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* Dummy Ethernet tap
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*
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* This tap device prints the contents of packets it receives on stdout
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* and also prints outgoing packets when they are injected. It does not
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* connect to any real tap or other interface. It's useful for running
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* test networks.
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*/
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class TestEthernetTap : public EthernetTap
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{
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friend class SharedPtr<TestEthernetTap>;
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public:
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struct TestFrame
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{
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TestFrame() : from(),to(),timestamp(0),etherType(0),len(0) {}
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TestFrame(const MAC &f,const MAC &t,const void *d,unsigned int et,unsigned int l) :
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from(f),
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to(t),
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timestamp(Utils::now()),
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etherType(et),
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len(l)
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{
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memcpy(data,d,l);
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}
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MAC from;
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MAC to;
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uint64_t timestamp;
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unsigned int etherType;
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unsigned int len;
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char data[4096];
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};
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TestEthernetTap(
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TestEthernetTapFactory *parent,
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const MAC &mac,
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unsigned int mtu,
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unsigned int metric,
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uint64_t nwid,
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const char *desiredDevice,
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const char *friendlyName,
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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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virtual ~TestEthernetTap();
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virtual void setEnabled(bool en);
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virtual bool enabled() const;
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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 void setFriendlyName(const char *friendlyName);
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virtual bool updateMulticastGroups(std::set<MulticastGroup> &groups);
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virtual bool injectPacketFromHost(const MAC &from,const MAC &to,unsigned int etherType,const void *data,unsigned int len);
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inline uint64_t nwid() const { return _nwid; }
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inline bool getNextReceivedFrame(TestFrame &v,unsigned long timeout) { return _gq.pop(v,timeout); }
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void threadMain()
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throw();
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private:
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uint64_t _nwid;
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TestEthernetTapFactory *_parent;
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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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volatile bool _enabled;
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MTQ<TestFrame> _pq;
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MTQ<TestFrame> _gq;
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AtomicCounter __refCount;
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};
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} // namespace ZeroTier
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#endif
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