mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2024-12-24 07:06:39 +00:00
153 lines
3.5 KiB
C++
153 lines
3.5 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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#include "TestEthernetTap.hpp"
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#include "TestEthernetTapFactory.hpp"
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#include "../node/Constants.hpp"
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#include "../node/Utils.hpp"
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#include <stdio.h>
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#include <stdlib.h>
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#ifdef __WINDOWS__
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#include <process.h>
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#else
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#include <unistd.h>
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#endif
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namespace ZeroTier {
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TestEthernetTap::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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EthernetTap("TestEthernetTap",mac,mtu,metric),
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_nwid(nwid),
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_parent(parent),
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_handler(handler),
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_arg(arg),
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_enabled(true)
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{
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static volatile unsigned int testTapCounter = 0;
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char tmp[64];
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int pid = 0;
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#ifdef __UNIX_LIKE__
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pid = (int)getpid();
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#endif
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#ifdef __WINDOWS__
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pid = (int)_getpid();
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#endif
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Utils::snprintf(tmp,sizeof(tmp),"test%dtap%d",pid,testTapCounter++);
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_dev = tmp;
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_thread = Thread::start(this);
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}
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TestEthernetTap::~TestEthernetTap()
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{
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static const TestFrame zf; // use a static empty frame because of weirdo G++ warning bug...
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_pq.push(zf); // empty frame terminates thread
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Thread::join(_thread);
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}
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void TestEthernetTap::setEnabled(bool en)
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{
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_enabled = en;
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}
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bool TestEthernetTap::enabled() const
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{
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return _enabled;
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}
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bool TestEthernetTap::addIP(const InetAddress &ip)
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{
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return true;
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}
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bool TestEthernetTap::removeIP(const InetAddress &ip)
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{
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return true;
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}
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std::set<InetAddress> TestEthernetTap::ips() const
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{
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return std::set<InetAddress>();
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}
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void TestEthernetTap::put(const MAC &from,const MAC &to,unsigned int etherType,const void *data,unsigned int len)
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{
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_gq.push(TestFrame(from,to,data,etherType,len));
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}
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std::string TestEthernetTap::deviceName() const
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{
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return _dev;
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}
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void TestEthernetTap::setFriendlyName(const char *friendlyName)
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{
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}
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bool TestEthernetTap::updateMulticastGroups(std::set<MulticastGroup> &groups)
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{
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return false;
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}
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bool TestEthernetTap::injectPacketFromHost(const MAC &from,const MAC &to,unsigned int etherType,const void *data,unsigned int len)
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{
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if ((len == 0)||(len > 2800))
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return false;
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_pq.push(TestFrame(from,to,data,etherType & 0xffff,len));
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return true;
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}
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void TestEthernetTap::threadMain()
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throw()
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{
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TestFrame f;
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for(;;) {
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if (_pq.pop(f,0)) {
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if (f.len) {
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try {
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_handler(_arg,f.from,f.to,f.etherType,Buffer<4096>(f.data,f.len));
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} catch ( ... ) {}
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} else break;
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}
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}
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}
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} // namespace ZeroTier
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