// -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*-

//

// Copyright (c) 2006 Georgia Tech Research Corporation

// All rights reserved.

//

// 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

//

// Author: George F. Riley<riley@ece.gatech.edu>

//

// Implementation of the InternetNode class for ns3.

// George F. Riley, Georgia Tech, Fall 2006

#include "ns3/composite-trace-resolver.h"

#include "ns3/net-device.h"

#include "l3-demux.h"

#include "ipv4-l4-demux.h"

#include "internet-node.h"

#include "udp-l4-protocol.h"

#include "ipv4-l3-protocol.h"

#include "arp-l3-protocol.h"

#include "udp-impl.h"

#include "arp-private.h"

#include "ipv4-impl.h"

#include "ipv4-private.h"

namespace ns3 {

InternetNode::InternetNode()

{

  Construct ();

}

InternetNode::InternetNode(uint32_t systemId)

{

  Construct ();

}

InternetNode::~InternetNode ()

{}

void

InternetNode::Construct (void)

{

  Ptr<Ipv4L3Protocol> ipv4 = Create<Ipv4L3Protocol> (this);

  Ptr<ArpL3Protocol> arp = Create<ArpL3Protocol> (this);

  Ptr<UdpL4Protocol> udp = Create<UdpL4Protocol> (this);

  Ptr<L3Demux> l3Demux = Create<L3Demux> (this);

  Ptr<Ipv4L4Demux> ipv4L4Demux = Create<Ipv4L4Demux> (this);

  l3Demux->Insert (ipv4);

  l3Demux->Insert (arp);

  ipv4L4Demux->Insert (udp);

  Ptr<UdpImpl> udpImpl = Create<UdpImpl> (udp);

  Ptr<ArpPrivate> arpPrivate = Create<ArpPrivate> (arp);

  Ptr<Ipv4Impl> ipv4Impl = Create<Ipv4Impl> (ipv4);

  Ptr<Ipv4Private> ipv4Private = Create<Ipv4Private> (ipv4);

  Object::AddInterface (ipv4Private);

  Object::AddInterface (ipv4Impl);

  Object::AddInterface (arpPrivate);

  Object::AddInterface (udpImpl);

  Object::AddInterface (l3Demux);

  Object::AddInterface (ipv4L4Demux);

}

TraceResolver *

InternetNode::DoCreateTraceResolver (TraceContext const &context)

{

  CompositeTraceResolver *resolver = new CompositeTraceResolver (context);

  Ptr<Ipv4Private> ipv4 = QueryInterface<Ipv4Private> (Ipv4Private::iid);

  resolver->Add ("ipv4",

                 MakeCallback (&Ipv4Private::CreateTraceResolver, PeekPointer (ipv4)),

                 InternetNode::IPV4);

  return resolver;

}

void 

InternetNode::DoDispose()

{

  Node::DoDispose ();

}

void 

{

  device->SetReceiveCallback (MakeCallback (&InternetNode::ReceiveFromDevice, this));

}

bool

InternetNode::ReceiveFromDevice (Ptr<NetDevice> device, const Packet &p, uint16_t protocolNumber) const

{

  Ptr<L3Demux> demux = QueryInterface<L3Demux> (L3Demux::iid);

  Ptr<L3Protocol> target = demux->GetProtocol (protocolNumber);

  if (target != 0) 

    {

      Packet packet = p;

      target->Receive(packet, device);

      return true;

    }

  return false;

}

}//namespace ns3