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/*
* ZeroTier One - Global Peer to Peer Ethernet
* Copyright (C) 2011-2014 ZeroTier Networks LLC
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* --
*
* ZeroTier may be used and distributed under the terms of the GPLv3, which
* are available at: http://www.gnu.org/licenses/gpl-3.0.html
*
* If you would like to embed ZeroTier into a commercial application or
* redistribute it in a modified binary form, please contact ZeroTier Networks
* LLC. Start here: http://www.zerotier.com/
*/
#ifndef ZT_ROUTINGTABLE_HPP
#define ZT_ROUTINGTABLE_HPP
#include <vector>
#include <string>
#include "InetAddress.hpp"
#include "NonCopyable.hpp"
namespace ZeroTier {
/**
* Base class for OS routing table interfaces
*/
class RoutingTable : NonCopyable
{
public:
class Entry
{
public:
Entry() { device[0] = (char)0; }
InetAddress destination;
InetAddress gateway; // port/netmaskBits field not used, should be 0
char device[128];
int metric;
std::string toString() const;
bool operator==(const Entry &re) const;
inline bool operator!=(const Entry &re) const { return (!(*this == re)); }
bool operator<(const Entry &re) const;
inline bool operator>(const Entry &re) const { return (re < *this); }
inline bool operator<=(const Entry &re) const { return (!(re < *this)); }
inline bool operator>=(const Entry &re) const { return (!(*this < re)); }
};
RoutingTable();
virtual ~RoutingTable();
/**
* @return Sorted routing table entries
*/
virtual std::vector<Entry> get() const = 0;
/**
* Add or update a routing table entry
*
* @param re Entry to add/update
* @return True if change successful (or unchanged)
*/
virtual bool set(const Entry &re) = 0;
/**
* Compute a 64-bit value that hashes the current state of the network environment
*
* This shouldn't be overridden -- uses get() to get underlying routing table.
*
* @param ignoreInterfaces Names of interfaces to exclude from fingerprint (e.g. my own)
* @return Integer CRC-type fingerprint of current network environment
*/
uint64_t networkEnvironmentFingerprint(const std::vector<std::string> &ignoreInterfaces) const;
};
} // namespace ZeroTier
#endif
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