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/*
* anytun
*
* The secure anycast tunneling protocol (satp) defines a protocol used
* for communication between any combination of unicast and anycast
* tunnel endpoints. It has less protocol overhead than IPSec in Tunnel
* mode and allows tunneling of every ETHER TYPE protocol (e.g.
* ethernet, ip, arp ...). satp directly includes cryptography and
* message authentication based on the methodes used by SRTP. It is
* intended to deliver a generic, scaleable and secure solution for
* tunneling and relaying of packets of any protocol.
*
*
* Copyright (C) 2007-2009 Othmar Gsenger, Erwin Nindl,
* Christian Pointner <satp@wirdorange.org>
*
* This file is part of Anytun.
*
* Anytun 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
* any later version.
*
* Anytun 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 anytun. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _PORT_WINDOW_H_
#define _PORT_WINDOW_H_
#include <set>
#include "../threadUtils.hpp"
#include "../datatypes.h"
class PortWindow
{
public:
typedef std::set<uint16_t> PortSet;
PortWindow(uint16_t,uint16_t);
~PortWindow();
PortSet::size_type getLength();
bool hasPort(uint16_t);
bool freePort(uint16_t);
uint16_t newPort();
void clear();
private:
uint16_t start_port_;
uint16_t end_port_;
::Mutex mutex_;
PortSet ports_;
PortWindow(const PortWindow& s);
void operator=(const PortWindow& s);
};
#endif
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