mirror of
https://github.com/zerotier/ZeroTierOne.git
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123 lines
3.6 KiB
C++
123 lines
3.6 KiB
C++
/*
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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_ROUTINGTABLE_HPP
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#define ZT_ROUTINGTABLE_HPP
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#include <vector>
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#include <string>
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#include "InetAddress.hpp"
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#include "NonCopyable.hpp"
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namespace ZeroTier {
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/**
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* Base class for OS routing table interfaces
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*/
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class RoutingTable : NonCopyable
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{
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public:
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class Entry
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{
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public:
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Entry() throw() { device[0] = (char)0; }
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/**
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* Destination IP and netmask bits (CIDR format)
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*/
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InetAddress destination;
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/**
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* Gateway or null address if direct link-level route, netmask/port part of InetAddress not used
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*/
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InetAddress gateway;
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/**
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* System device index or ID (not included in comparison operators, may not be set on all platforms)
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*/
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int deviceIndex;
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/**
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* Metric or hop count -- higher = lower routing priority
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*/
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int metric;
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/**
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* System device name
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*/
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char device[128];
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/**
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* @return Human-readable representation of this route
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*/
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std::string toString() const;
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/**
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* @return True if at least one required field is present (object is not null)
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*/
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inline operator bool() const { return ((destination)||(gateway)||(device[0])); }
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bool operator==(const Entry &re) const;
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inline bool operator!=(const Entry &re) const { return (!(*this == re)); }
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bool operator<(const Entry &re) const;
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inline bool operator>(const Entry &re) const { return (re < *this); }
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inline bool operator<=(const Entry &re) const { return (!(re < *this)); }
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inline bool operator>=(const Entry &re) const { return (!(*this < re)); }
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};
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RoutingTable();
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virtual ~RoutingTable();
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/**
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* Get routing table
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*
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* @param includeLinkLocal If true, include link-local address routes (default: false)
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* @param includeLoopback Include loopback (default: false)
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* @return Sorted routing table entries
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*/
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virtual std::vector<RoutingTable::Entry> get(bool includeLinkLocal = false,bool includeLoopback = false) const = 0;
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/**
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* Add or update a routing table entry
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*
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* If there is no change, the existing entry is returned. Use a value of -1
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* for metric to delete a route.
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*
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* @param destination Destination IP/netmask
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* @param gateway Gateway IP (netmask/port part unused) or NULL/zero for device-level route
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* @param device Device name (can be null for gateway routes)
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* @param metric Route metric or hop count (higher = lower priority) or negative to delete
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* @return Entry or null entry on failure (or delete)
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*/
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virtual RoutingTable::Entry set(const InetAddress &destination,const InetAddress &gateway,const char *device,int metric) = 0;
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};
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} // namespace ZeroTier
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#endif
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