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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2011 University of California, Los Angeles
*
* 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: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
*/
#ifndef NDN_L3_PROTOCOL_H
#define NDN_L3_PROTOCOL_H
#include <list>
#include <vector>
#include "ns3/ptr.h"
#include "ns3/net-device.h"
#include "ns3/nstime.h"
namespace ns3 {
class Packet;
class NetDevice;
class Node;
class Header;
namespace ndn {
class Face;
class ForwardingStrategy;
class Interest;
class ContentObject;
typedef Interest InterestHeader;
typedef ContentObject ContentObjectHeader;
/**
* \defgroup ndn ndnSIM: NDN simulation module
*
* This is a simplified modular implementation of NDN protocol
*/
/**
* \ingroup ndn
* \brief Implementation network-layer of NDN stack
*
* This class defines the API to manipulate the following aspects of
* the NDN stack implementation:
* -# register a face (Face-derived object) for use by the NDN
* layer
*
* Each Face-derived object has conceptually a single NDN
* interface associated with it.
*
* In addition, this class defines NDN packet coding constants
*
* \see Face, ForwardingStrategy
*/
class L3Protocol :
public Object
{
public:
typedef std::vector<Ptr<Face> > FaceList;
/**
* \brief Interface ID
*
* \return interface ID
*/
static TypeId GetTypeId ();
static const uint16_t ETHERNET_FRAME_TYPE; ///< \brief Ethernet Frame Type of Ndn
// static const uint16_t IP_PROTOCOL_TYPE; ///< \brief IP protocol type of Ndn
// static const uint16_t UDP_PORT; ///< \brief UDP port of Ndn
/**
* \brief Default constructor. Creates an empty stack without forwarding strategy set
*/
L3Protocol();
virtual ~L3Protocol ();
/**
* \brief Add face to Ndn stack
*
* \param face smart pointer to NdnFace-derived object
* (NdnLocalFace, NdnNetDeviceFace, NdnUdpFace) \returns the
* index of the Ndn interface added.
*
* \see NdnLocalFace, NdnNetDeviceFace, NdnUdpFace
*/
virtual uint32_t
AddFace (const Ptr<Face> &face);
/**
* \brief Get current number of faces added to Ndn stack
*
* \returns the number of faces
*/
virtual uint32_t
GetNFaces () const;
/**
* \brief Get face by face index
* \param face The face number (number in face list)
* \returns The NdnFace associated with the Ndn face number.
*/
virtual Ptr<Face>
GetFace (uint32_t face) const;
/**
* \brief Get face by face ID
* \param face The face ID number
* \returns The NdnFace associated with the Ndn face number.
*/
virtual Ptr<Face>
GetFaceById (uint32_t face) const;
/**
* \brief Remove face from ndn stack (remove callbacks)
*/
virtual void
RemoveFace (Ptr<Face> face);
/**
* \brief Get face for NetDevice
*/
virtual Ptr<Face>
GetFaceByNetDevice (Ptr<NetDevice> netDevice) const;
protected:
virtual void DoDispose (void); ///< @brief Do cleanup
/**
* This function will notify other components connected to the node that a new stack member is now connected
* This will be used to notify Layer 3 protocol of layer 4 protocol stack to connect them together.
*/
virtual void NotifyNewAggregate ();
private:
L3Protocol(const L3Protocol &); ///< copy constructor is disabled
L3Protocol &operator = (const L3Protocol &); ///< copy operator is disabled
private:
uint32_t m_faceCounter; ///< \brief counter of faces. Increased every time a new face is added to the stack
FaceList m_faces; ///< \brief list of faces that belongs to ndn stack on this node
// These objects are aggregated, but for optimization, get them here
Ptr<Node> m_node; ///< \brief node on which ndn stack is installed
Ptr<ForwardingStrategy> m_forwardingStrategy; ///< \brief smart pointer to the selected forwarding strategy
};
} // namespace ndn
} // namespace ns3
#endif /* NDN_L3_PROTOCOL_H */