// -*- 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>

//         Gustavo Carneiro <gjc@inescporto.pt>

//

#ifndef IPV4_STATIC_ROUTING_H

#define IPV4_STATIC_ROUTING_H

#include <list>

#include <stdint.h>

#include "ns3/callback-trace-source.h"

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

#include "ns3/ipv4-address.h"

#include "ipv4-header.h"

#include "ns3/ptr.h"

#include "ns3/ipv4.h"

namespace ns3 {

class Packet;

class NetDevice;

class Ipv4Interface;

class Ipv4Address;

class Ipv4Header;

class Ipv4Route;

class Node;

class TraceResolver;

class TraceContext;

class Ipv4StaticRouting : public Ipv4RoutingProtocol

{

public:

  Ipv4StaticRouting () : m_defaultRoute (0) {}

  virtual bool RequestRoute (Ipv4Header const &ipHeader,

                             Packet packet,

                             RouteReplyCallback routeReply);

  void AddHostRouteTo (Ipv4Address dest, 

                       Ipv4Address nextHop, 

                       uint32_t interface);

  void AddHostRouteTo (Ipv4Address dest, 

                       uint32_t interface);

  void AddNetworkRouteTo (Ipv4Address network, 

                          Ipv4Mask networkMask, 

                          Ipv4Address nextHop, 

                          uint32_t interface);

  void AddNetworkRouteTo (Ipv4Address network, 

                          Ipv4Mask networkMask, 

                          uint32_t interface);

  void SetDefaultRoute (Ipv4Address nextHop, 

                        uint32_t interface);

  uint32_t GetNRoutes (void);

  Ipv4Route *GetRoute (uint32_t i);

  void RemoveRoute (uint32_t i);

protected:

  void DoDispose (void);

private:

  typedef std::list<Ipv4Route *> HostRoutes;

  typedef std::list<Ipv4Route *>::const_iterator HostRoutesCI;

  typedef std::list<Ipv4Route *>::iterator HostRoutesI;

  typedef std::list<Ipv4Route *> NetworkRoutes;

  typedef std::list<Ipv4Route *>::const_iterator NetworkRoutesCI;

  typedef std::list<Ipv4Route *>::iterator NetworkRoutesI;

  Ipv4Route *LookupStatic (Ipv4Address dest);

  HostRoutes m_hostRoutes;

  NetworkRoutes m_networkRoutes;

  Ipv4Route *m_defaultRoute;

};

} // Namespace ns3

#endif /* IPV4_STATIC_ROUTING_H */