mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2024-12-22 06:17:48 +00:00
157 lines
4.0 KiB
C++
157 lines
4.0 KiB
C++
/*
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* ZeroTier One - Network Virtualization Everywhere
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* Copyright (C) 2011-2017 ZeroTier, Inc. https://www.zerotier.com/
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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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* You can be released from the requirements of the license by purchasing
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* a commercial license. Buying such a license is mandatory as soon as you
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* develop commercial closed-source software that incorporates or links
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* directly against ZeroTier software without disclosing the source code
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* of your own application.
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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 <stdint.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <string>
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#include <vector>
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#include <stdexcept>
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#include <set>
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#include "../node/Constants.hpp"
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#include "../node/InetAddress.hpp"
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#include "../node/MulticastGroup.hpp"
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#include "../node/Mutex.hpp"
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#include "../node/Utils.hpp"
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namespace ZeroTier {
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/**
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* Dummy test Ethernet tap that does not actually open a device on the system
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*/
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class TestEthernetTap
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{
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public:
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TestEthernetTap(
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const char *homePath,
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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 *friendlyName,
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void (*handler)(void *,void *,uint64_t,const MAC &,const MAC &,unsigned int,unsigned int,const void *,unsigned int),
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void *arg) :
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_nwid(nwid),
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_dev("zt_test_"),
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_enabled(true)
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{
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char tmp[32];
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Utils::snprintf(tmp,sizeof(tmp),"%.16llx",(unsigned long long)_nwid);
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_dev.append(tmp);
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#ifdef ZT_TEST_TAP_REPORT_TO
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_reportTo.fromString(ZT_TEST_TAP_REPORT_TO);
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if (_reportTo.ss_family == AF_INET)
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_reportsock = socket(AF_INET,SOCK_DGRAM,0);
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else if (_reportTo.ss_family == AF_INET6)
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_reportsock = socket(AF_INET6,SOCK_DGRAM,0);
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else _reportsock = -1;
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#endif
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}
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~TestEthernetTap()
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{
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#ifdef ZT_TEST_TAP_REPORT_TO
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if (_reportsock >= 0)
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close(_reportsock);
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#endif
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}
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inline void setEnabled(bool en) { _enabled = en; }
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inline bool enabled() const { return _enabled; }
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inline bool addIp(const InetAddress &ip)
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{
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Mutex::Lock _l(_lock);
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_ips.insert(ip);
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return true;
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}
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inline bool removeIp(const InetAddress &ip)
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{
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Mutex::Lock _l(_lock);
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_ips.erase(ip);
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return true;
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}
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inline std::vector<InetAddress> ips() const
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{
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Mutex::Lock _l(_lock);
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return std::vector<InetAddress>(_ips.begin(),_ips.end());
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}
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inline void put(const MAC &from,const MAC &to,unsigned int etherType,const void *data,unsigned int len)
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{
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#ifdef ZT_TEST_TAP_REPORT_TO
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char tmp[10000];
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if ((_reportsock >= 0)&&(len < (sizeof(tmp) - 22))) {
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const uint64_t nwid2 = Utils::hton(_nwid);
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memcpy(tmp,&nwid2,8);
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from.copyTo(tmp + 8,6);
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to.copyTo(tmp + 14,6);
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const uint16_t etherType2 = Utils::hton((uint16_t)etherType);
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memcpy(tmp + 20,ðerType2,2);
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memcpy(tmp + 22,data,len);
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sendto(_reportsock,tmp,len + 22,0,reinterpret_cast<const struct sockaddr *>(&_reportTo),(_reportTo.ss_family == AF_INET) ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6));
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}
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#endif
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}
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inline std::string deviceName() const
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{
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return _dev;
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}
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inline void setFriendlyName(const char *friendlyName)
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{
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}
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inline void scanMulticastGroups(std::vector<MulticastGroup> &added,std::vector<MulticastGroup> &removed)
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{
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}
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private:
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uint64_t _nwid;
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std::string _dev;
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std::set<InetAddress> _ips;
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InetAddress _reportTo;
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#ifdef ZT_TEST_TAP_REPORT_TO
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int _reportsock;
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#endif
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bool _enabled;
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Mutex _lock;
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};
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} // namespace ZeroTier
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#endif
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