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

/*

 * Copyright (c) 2010 Lalith Suresh 

 *

 * 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: Lalith Suresh <suresh.lalith@gmail.com>

 */

#ifndef __IPV4_CLICK_ROUTING_H__

#define __IPV4_CLICK_ROUTING_H__

#include "ns3/object.h"

#include "ns3/packet.h"

#include "ns3/ipv4.h"

#include "ipv4-external-routing.h"

#include <sys/time.h>

#include <sys/types.h>

#include <click/simclick.h>

#include <map>

#include <string>

namespace ns3 {

class Ipv4ClickRouting : public Ipv4ExternalRouting

{

public:

  Ipv4ClickRouting ();

  virtual ~Ipv4ClickRouting ();

  virtual void DoStart ();

  virtual void DoDispose ();

private:

  // Allow Click Service methods to choose appropriate Ipv4ClickRouting object

  static std::map < simclick_node_t *, Ptr<Ipv4ClickRouting> > m_clickInstanceFromSimNode;

  std::string m_nodeName;

  std::map < std::string, uint32_t > m_ifaceIdFromName;

  std::map < std::string, Address > m_ifaceMacFromName;

  std::map < std::string, Ipv4Address > m_ifaceAddrFromName;

  bool m_clickInitialised;

  Ptr<Ipv4> m_ipv4;

public:

  std::string GetNodeName ();

  int IfReady (int ifid);

  virtual void ReceiveFromExtRouter (Ptr<Packet> p, bool direction);

  virtual void SendToExtRouter (Ptr<Packet> p, bool direction);

  virtual void SetIpv4 (Ptr<Ipv4> ipv4);

  void TestInit ();

  static Ptr<Ipv4ClickRouting> GetClickInstanceFromSimNode (simclick_node_t *simnode);

  void AddSimNodeToClickMapping ();

  void HandleScheduleFromClick (const struct timeval *when);

  void HandlePacketFromClick (int ifid, int type, const unsigned char *data, int len);

  void SendPacketToClick (int ifid, int type, const unsigned char *data, int len);

};

} // namespace ns3

#endif // __IPV4_CLICK_ROUTING_H__