mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2024-12-30 17:56:57 +00:00
151 lines
4.4 KiB
C++
151 lines
4.4 KiB
C++
/*
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* ZeroTier One - Network Virtualization Everywhere
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* Copyright (C) 2011-2016 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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#ifndef ZT_WINDOWSETHERNETTAP_HPP
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#define ZT_WINDOWSETHERNETTAP_HPP
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#include <stdio.h>
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#include <stdlib.h>
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#include <ifdef.h>
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#include <string>
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#include <queue>
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#include <stdexcept>
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#include "../node/Constants.hpp"
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#include "../node/Mutex.hpp"
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#include "../node/Array.hpp"
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#include "../node/MulticastGroup.hpp"
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#include "../node/InetAddress.hpp"
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#include "../osdep/Thread.hpp"
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namespace ZeroTier {
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class WindowsEthernetTap
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{
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public:
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/**
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* Installs a new instance of the ZT tap driver
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*
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* @param pathToInf Path to zttap driver .inf file
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* @param deviceInstanceId Buffer to fill with device instance ID on success (and if SetupDiGetDeviceInstanceIdA succeeds, which it should)
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* @return Empty string on success, otherwise an error message
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*/
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static std::string addNewPersistentTapDevice(const char *pathToInf,std::string &deviceInstanceId);
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/**
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* Uninstalls all persistent tap devices that have legacy drivers
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*
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* @return Empty string on success, otherwise an error message
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*/
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static std::string destroyAllLegacyPersistentTapDevices();
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/**
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* Uninstalls all persistent tap devices on the system
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*
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* @return Empty string on success, otherwise an error message
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*/
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static std::string destroyAllPersistentTapDevices();
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/**
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* Uninstall a specific persistent tap device by instance ID
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*
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* @param instanceId Device instance ID
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* @return Empty string on success, otherwise an error message
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*/
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static std::string deletePersistentTapDevice(const char *instanceId);
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/**
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* Disable a persistent tap device by instance ID
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*
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* @param instanceId Device instance ID
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* @param enabled Enable device?
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* @return True if device was found and disabled
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*/
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static bool setPersistentTapDeviceState(const char *instanceId,bool enabled);
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WindowsEthernetTap(
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const char *hp,
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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 *,uint64_t,const MAC &,const MAC &,unsigned int,unsigned int,const void *,unsigned int),
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void *arg);
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~WindowsEthernetTap();
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void setEnabled(bool en);
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bool enabled() const;
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bool addIp(const InetAddress &ip);
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bool removeIp(const InetAddress &ip);
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std::vector<InetAddress> ips() const;
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void put(const MAC &from,const MAC &to,unsigned int etherType,const void *data,unsigned int len);
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std::string deviceName() const;
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void setFriendlyName(const char *friendlyName);
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void scanMulticastGroups(std::vector<MulticastGroup> &added,std::vector<MulticastGroup> &removed);
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inline const NET_LUID &luid() const { return _deviceLuid; }
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inline const GUID &guid() const { return _deviceGuid; }
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inline const std::string &instanceId() const { return _deviceInstanceId; }
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NET_IFINDEX interfaceIndex() const;
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void threadMain()
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throw();
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private:
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NET_IFINDEX _getDeviceIndex(); // throws on failure
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std::vector<std::string> _getRegistryIPv4Value(const char *regKey);
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void _setRegistryIPv4Value(const char *regKey,const std::vector<std::string> &value);
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void _syncIps();
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void (*_handler)(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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MAC _mac;
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uint64_t _nwid;
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Thread _thread;
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volatile HANDLE _tap;
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HANDLE _injectSemaphore;
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GUID _deviceGuid;
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NET_LUID _deviceLuid;
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std::string _netCfgInstanceId;
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std::string _deviceInstanceId;
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std::vector<InetAddress> _assignedIps; // IPs assigned with addIp
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Mutex _assignedIps_m;
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std::vector<MulticastGroup> _multicastGroups;
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std::queue< std::pair< Array<char,ZT_IF_MTU + 32>,unsigned int > > _injectPending;
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Mutex _injectPending_m;
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std::string _pathToHelpers;
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volatile bool _run;
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volatile bool _initialized;
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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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