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

/*

 * Copyright (c) 2007 INRIA

 * 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

 *

 * Authors: 

 *  Mathieu Lacage <mathieu.lacage@sophia.inria.fr>,

 */

#include "ipv4-loopback-interface.h"

#include "net-device.h"

#include "node.h"

#include "ipv4.h"

namespace ns3 {

class Ipv4DummyNetDevice : public NetDevice

{

public:

  Ipv4DummyNetDevice (Node *node);

  Node *PeekNode (void) const;

private:

  virtual bool SendTo (Packet& p, const MacAddress& dest);

};

Ipv4DummyNetDevice::Ipv4DummyNetDevice (Node *node)

  : NetDevice (node, MacAddress ())

{}

Node *

Ipv4DummyNetDevice::PeekNode (void) const

{

  return GetNode ();

}

bool 

Ipv4DummyNetDevice::SendTo (Packet& p, const MacAddress& dest)

{

  return false;

}

Ipv4LoopbackInterface::Ipv4LoopbackInterface (Node *node)

  : Ipv4Interface (new Ipv4DummyNetDevice (node))

{

}

Ipv4LoopbackInterface::~Ipv4LoopbackInterface ()

{

  delete GetDevice ();

}

Node *

Ipv4LoopbackInterface::GetNode (void) const

{

  return static_cast<Ipv4DummyNetDevice *> (GetDevice ())->PeekNode ();

}

void 

Ipv4LoopbackInterface::SendTo (Packet packet, Ipv4Address dest)

{

  m_node->GetIpv4 ()->Receive (packet, *(this->GetDevice ()));

}

}//namespace ns3