Adam Ierymenko
11 years ago
3 changed files with 11 additions and 200 deletions
@ -1,178 +0,0 @@
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/*
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* ZeroTier One - Network Virtualization Everywhere |
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* Copyright (C) 2011-2015 ZeroTier, Inc. |
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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_ETHERNETTAP_HPP |
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#define ZT_ETHERNETTAP_HPP |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string> |
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#include <set> |
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#include "../node/Constants.hpp" |
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#include "../node/MAC.hpp" |
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#include "../node/InetAddress.hpp" |
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#include "../node/MulticastGroup.hpp" |
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#include "../node/NonCopyable.hpp" |
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namespace ZeroTier { |
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/**
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* Base class for Ethernet tap device implementations |
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*/ |
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class EthernetTap : NonCopyable |
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{ |
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protected: |
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EthernetTap(const char *cn,const MAC &m,unsigned int mt,unsigned int met) : |
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_implName(cn), |
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_mac(m), |
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_mtu(mt), |
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_metric(met) {} |
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public: |
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virtual ~EthernetTap() {} |
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/**
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* @return Implementation class name (e.g. UnixEthernetTap) |
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*/ |
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inline const char *implementationName() const { return _implName; } |
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/**
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* Sets whether device is 'up' |
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* |
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* This may do nothing on some platforms. |
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* |
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* @param en Is device enabled? |
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*/ |
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virtual void setEnabled(bool en) = 0; |
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/**
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* @return Is device 'up'? |
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*/ |
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virtual bool enabled() const = 0; |
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/**
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* @return MAC address of this interface |
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*/ |
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inline const MAC &mac() const throw() { return _mac; } |
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/**
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* @return MTU of this interface |
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*/ |
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inline unsigned int mtu() const throw() { return _mtu; } |
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/**
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* @return Interface metric |
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*/ |
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inline unsigned int metric() const throw() { return _metric; } |
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/**
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* Add an IP to this interface |
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* |
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* @param ip IP and netmask (netmask stored in port field) |
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* @return True if IP added successfully |
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*/ |
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virtual bool addIP(const InetAddress &ip) = 0; |
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/**
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* Remove an IP from this interface |
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* |
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* Link-local IP addresses may not be able to be removed, depending on platform and type. |
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* |
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* @param ip IP and netmask (netmask stored in port field) |
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* @return True if IP removed successfully |
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*/ |
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virtual bool removeIP(const InetAddress &ip) = 0; |
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/**
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* @return All IP addresses (V4 and V6) assigned to this interface (including link-local) |
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*/ |
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virtual std::set<InetAddress> ips() const = 0; |
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/**
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* Put a frame, making it available to the OS for processing |
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* |
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* @param from MAC address from which frame originated |
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* @param to MAC address of destination (typically MAC of tap itself) |
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* @param etherType Ethernet protocol ID |
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* @param data Frame payload |
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* @param len Length of frame |
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*/ |
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virtual void put(const MAC &from,const MAC &to,unsigned int etherType,const void *data,unsigned int len) = 0; |
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/**
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* @return OS-specific device or connection name (e.g. zt0, tap0, etc.) |
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*/ |
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virtual std::string deviceName() const = 0; |
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/**
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* Change this device's user-visible name (if supported) |
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* |
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* @param friendlyName New name |
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*/ |
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virtual void setFriendlyName(const char *friendlyName) = 0; |
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/**
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* Fill or modify a set to contain multicast groups for this device |
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* |
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* This populates a set or, if already populated, modifies it to contain |
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* only multicast groups in which this device is interested. |
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* |
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* This neither includes nor removes the broadcast (ff:ff:ff:ff:ff:ff / 0) |
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* group. |
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* |
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* @param groups Set to modify in place |
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* @return True if set was changed since last call |
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*/ |
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virtual bool updateMulticastGroups(std::set<MulticastGroup> &groups) = 0; |
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/**
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* Inject a packet as if it was sent by the host, if supported |
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* |
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* This is for testing and is typically not supported by real TAP devices. |
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* It's implemented by TestEthernetTap in testnet. |
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* |
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* @param from Source MAC |
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* @param to Destination MAC |
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* @param etherType Ethernet frame type |
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* @param data Packet data |
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* @param len Packet length |
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* @return False if not supported or packet too large |
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*/ |
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virtual bool injectPacketFromHost(const MAC &from,const MAC &to,unsigned int etherType,const void *data,unsigned int len) = 0; |
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protected: |
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const char *_implName; |
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MAC _mac; |
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unsigned int _mtu; |
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unsigned int _metric; |
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}; |
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} // namespace ZeroTier
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#endif |
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