ipv4-packet-filter.cc

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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>
 *           Pasquale Imputato <p.imputato@gmail.com>
 */

#include "ns3/log.h"
#include "ns3/enum.h"
#include "ns3/uinteger.h"
#include "ns3/tcp-header.h"
#include "ns3/udp-header.h"
#include "ipv4-queue-disc-item.h"
#include "ipv4-packet-filter.h"

namespace ns3 {

NS_LOG_COMPONENT_DEFINE ("Ipv4PacketFilter");

NS_OBJECT_ENSURE_REGISTERED (Ipv4PacketFilter);

TypeId 
Ipv4PacketFilter::GetTypeId (void)
{
  static TypeId tid = TypeId ("ns3::Ipv4PacketFilter")
    .SetParent<PacketFilter> ()
    .SetGroupName ("Internet")
  ;
  return tid;
}

Ipv4PacketFilter::Ipv4PacketFilter ()
{
  NS_LOG_FUNCTION (this);
}

Ipv4PacketFilter::~Ipv4PacketFilter()
{
  NS_LOG_FUNCTION (this);
}

bool
Ipv4PacketFilter::CheckProtocol (Ptr<QueueDiscItem> item) const
{
  NS_LOG_FUNCTION (this << item);
  return (DynamicCast<Ipv4QueueDiscItem> (item) != 0);
}

// ------------------------------------------------------------------------- //


} // namespace ns3