// -*- 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 "net-device-list.h"

#include "l3-demux.h"

#include "ipv4-l4-demux.h"

#include "internet-node.h"

#include "udp.h"

#include "ipv4.h"

#include "arp.h"

#include "ipv4-loopback-interface.h"

namespace ns3 {

InternetNode::InternetNode()

{

  // Instantiate the capabilities

  m_netDevices = new NetDeviceList();

  m_l3Demux = new L3Demux(this);

  m_ipv4L4Demux = new Ipv4L4Demux(this);

  m_l3Demux->Insert (Ipv4 (this));

  m_l3Demux->Insert (Arp (this));

  m_ipv4L4Demux->Insert (Udp (this));

  SetupLoopback ();

}

InternetNode::InternetNode (InternetNode const &o)

{

  m_netDevices = new NetDeviceList ();

  m_l3Demux = o.m_l3Demux->Copy (this);

  m_ipv4L4Demux = o.m_ipv4L4Demux->Copy (this);

  SetupLoopback ();  

}

InternetNode const &

InternetNode::operator = (InternetNode const &o)

{

  delete m_netDevices;

  delete m_l3Demux;

  delete m_ipv4L4Demux;

  m_netDevices = new NetDeviceList ();

  m_l3Demux = o.m_l3Demux->Copy (this);

  m_ipv4L4Demux = o.m_ipv4L4Demux->Copy (this);

  SetupLoopback ();  

  return *this;

}

InternetNode::~InternetNode ()

{

  delete m_netDevices;

  delete m_l3Demux;

  delete m_ipv4L4Demux;

}

  void

InternetNode::SetName (std::string name)

{

  m_name = name;

}

void

InternetNode::SetupLoopback (void)

{

  Ipv4LoopbackInterface * interface = new Ipv4LoopbackInterface (this);

  interface->SetAddress (Ipv4Address::GetLoopback ());

  interface->SetNetworkMask (Ipv4Mask::GetLoopback ());

  uint32_t index = GetIpv4 ()->AddInterface (interface);

  GetIpv4 ()->AddHostRouteTo (Ipv4Address::GetLoopback (), index);

  interface->SetUp ();

}

// Copy this node

InternetNode* 

InternetNode::Copy() const

{

  InternetNode *copy = new InternetNode (*this);

   return copy;

}

NetDeviceList*   

{

  return m_netDevices;

}

L3Demux*     

InternetNode::GetL3Demux() const

{

  return m_l3Demux;

}

Ipv4L4Demux*     

InternetNode::GetIpv4L4Demux() const

{

  return m_ipv4L4Demux;

}

Ipv4 *

InternetNode::GetIpv4 (void) const

{

  return static_cast<Ipv4*> (m_l3Demux->Lookup (Ipv4::PROT_NUMBER));

}

Udp *

InternetNode::GetUdp (void) const

{

  return static_cast<Udp*> (m_ipv4L4Demux->Lookup (Udp::PROT_NUMBER));

}

Arp *

InternetNode::GetArp (void) const

{

  return static_cast<Arp*> (m_l3Demux->Lookup (Arp::PROT_NUMBER));

}

}//namespace ns3