ipv4-click-routing.h

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/* -*- 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 "ns3/ipv4-routing-protocol.h"
#include "ns3/test.h"

#include <sys/time.h>
#include <sys/types.h>

#ifdef NS3_CLICK
#include <click/simclick.h>
#endif

#include <map>
#include <string>

namespace ns3 {

class UniformRandomVariable;

class Ipv4ClickRouting : public Ipv4RoutingProtocol
{
#ifdef NS3_CLICK
public:
  // Allow test cases to access private members
  friend class ClickTrivialTest;
  friend class ClickIfidFromNameTest;
  friend class ClickIpMacAddressFromNameTest;

  static TypeId GetTypeId (void);

  Ipv4ClickRouting ();
  virtual ~Ipv4ClickRouting ();

  Ptr<UniformRandomVariable> GetRandomVariable (void);
protected:
  virtual void DoInitialize (void);

public:
  virtual void DoDispose ();

  void SetClickFile (std::string clickfile);

  void SetDefines (std::map<std::string, std::string> defines);

  void SetNodeName (std::string name);

  void SetClickRoutingTableElement (std::string name);

  std::string ReadHandler (std::string elementName, std::string handlerName);

  int WriteHandler (std::string elementName, std::string handlerName, std::string writeString);

  void SetPromisc (int ifid);


private:
  simclick_node_t *m_simNode;

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

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

public:
  std::map<std::string, std::string> GetDefines (void);

  int GetInterfaceId (const char *ifname);

  std::string GetIpAddressFromInterfaceId (int ifid);

  std::string GetIpPrefixFromInterfaceId (int ifid);

  std::string GetMacAddressFromInterfaceId (int ifid);

  std::string GetNodeName ();

  bool IsInterfaceReady (int ifid);

  virtual void SetIpv4 (Ptr<Ipv4> ipv4);

private:
  void AddSimNodeToClickMapping ();

  struct timeval GetTimevalFromNow () const;

  void RunClickEvent ();

public:
  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);

  void Send (Ptr<Packet> p, Ipv4Address src, Ipv4Address dest);

  void Receive (Ptr<Packet> p, Mac48Address receiverAddr, Mac48Address dest);

  // From Ipv4RoutingProtocol
  virtual Ptr<Ipv4Route> RouteOutput (Ptr<Packet> p, const Ipv4Header &header, Ptr<NetDevice> oif, Socket::SocketErrno &sockerr);
  virtual bool RouteInput  (Ptr<const Packet> p, const Ipv4Header &header, Ptr<const NetDevice> idev,
                            UnicastForwardCallback ucb, MulticastForwardCallback mcb,
                            LocalDeliverCallback lcb, ErrorCallback ecb);
  virtual void PrintRoutingTable (Ptr<OutputStreamWrapper> stream) const;
  virtual void NotifyInterfaceUp (uint32_t interface);
  virtual void NotifyInterfaceDown (uint32_t interface);
  virtual void NotifyAddAddress (uint32_t interface, Ipv4InterfaceAddress address);
  virtual void NotifyRemoveAddress (uint32_t interface, Ipv4InterfaceAddress address);

private:
  std::string m_clickFile;
  std::map < std::string, std::string > m_defines;
  std::string m_nodeName;
  std::string m_clickRoutingTableElement;


  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;
  bool m_nonDefaultName;

  Ptr<Ipv4> m_ipv4;
  Ptr<UniformRandomVariable> m_random;
#endif /* NS3_CLICK */
};

} // namespace ns3

#endif /* IPV4_CLICK_ROUTING_H */