ipv4-packet-filter.h

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2016 Universita' degli Studi di Napoli Federico II
 *               2016 University of Washington
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation;
 *
 * 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Authors:  Stefano Avallone <stavallo@unina.it>
 *           Tom Henderson <tomhend@u.washington.edu>
 */

#ifndef IPV4_PACKET_FILTER_H
#define IPV4_PACKET_FILTER_H

#include "ns3/object.h"
#include "ns3/packet-filter.h"

namespace ns3 {

class Ipv4PacketFilter: public PacketFilter {
public:
  static TypeId GetTypeId (void);

  Ipv4PacketFilter ();
  virtual ~Ipv4PacketFilter ();

private:
  virtual bool CheckProtocol (Ptr<QueueDiscItem> item) const;
  virtual int32_t DoClassify (Ptr<QueueDiscItem> item) const = 0;
};


class PfifoFastIpv4PacketFilter: public Ipv4PacketFilter {
public:
  static TypeId GetTypeId (void);

  PfifoFastIpv4PacketFilter ();
  virtual ~PfifoFastIpv4PacketFilter ();

  enum Ipv4TrafficClassMode
  {
    PF_MODE_TOS,       
    PF_MODE_DSCP,      
  };

private:
  virtual int32_t DoClassify (Ptr<QueueDiscItem> item) const;

  uint32_t TosToBand (uint8_t tos) const;

  uint32_t DscpToBand (Ipv4Header::DscpType dscpType) const;

  Ipv4TrafficClassMode m_trafficClassMode; 
};

} // namespace ns3

#endif /* IPV4_PACKET_FILTER */