/* * ZeroTier One - Global Peer to Peer Ethernet * Copyright (C) 2011-2014 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 . * * -- * * 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/ */ #include "TestEthernetTap.hpp" #include "TestEthernetTapFactory.hpp" #include "../node/Constants.hpp" #include "../node/Utils.hpp" #include #include #ifdef __WINDOWS__ #include #else #include #endif namespace ZeroTier { TestEthernetTap::TestEthernetTap( TestEthernetTapFactory *parent, const MAC &mac, unsigned int mtu, unsigned int metric, uint64_t nwid, const char *desiredDevice, const char *friendlyName, void (*handler)(void *,const MAC &,const MAC &,unsigned int,const Buffer<4096> &), void *arg) : EthernetTap("TestEthernetTap",mac,mtu,metric), _nwid(nwid), _parent(parent), _handler(handler), _arg(arg), _enabled(true) { static volatile unsigned int testTapCounter = 0; char tmp[64]; int pid = 0; #ifdef __UNIX_LIKE__ pid = (int)getpid(); #endif #ifdef __WINDOWS__ pid = (int)_getpid(); #endif Utils::snprintf(tmp,sizeof(tmp),"test%dtap%d",pid,testTapCounter++); _dev = tmp; _thread = Thread::start(this); } TestEthernetTap::~TestEthernetTap() { static const TestFrame zf; // use a static empty frame because of weirdo G++ warning bug... _pq.push(zf); // empty frame terminates thread Thread::join(_thread); } void TestEthernetTap::setEnabled(bool en) { _enabled = en; } bool TestEthernetTap::enabled() const { return _enabled; } bool TestEthernetTap::addIP(const InetAddress &ip) { return true; } bool TestEthernetTap::removeIP(const InetAddress &ip) { return true; } std::set TestEthernetTap::ips() const { return std::set(); } void TestEthernetTap::put(const MAC &from,const MAC &to,unsigned int etherType,const void *data,unsigned int len) { _gq.push(TestFrame(from,to,data,etherType,len)); } std::string TestEthernetTap::deviceName() const { return _dev; } void TestEthernetTap::setFriendlyName(const char *friendlyName) { } bool TestEthernetTap::updateMulticastGroups(std::set &groups) { return false; } bool TestEthernetTap::injectPacketFromHost(const MAC &from,const MAC &to,unsigned int etherType,const void *data,unsigned int len) { if ((len == 0)||(len > 2800)) return false; _pq.push(TestFrame(from,to,data,etherType & 0xffff,len)); return true; } void TestEthernetTap::threadMain() throw() { TestFrame f; for(;;) { if (_pq.pop(f,0)) { if (f.len) { try { _handler(_arg,f.from,f.to,f.etherType,Buffer<4096>(f.data,f.len)); } catch ( ... ) {} } else break; } } } } // namespace ZeroTier