dsr-fs-header.h

/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2011 Yufei Cheng
 *
 * 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: Yufei Cheng   <yfcheng@ittc.ku.edu>
 *
 * James P.G. Sterbenz <jpgs@ittc.ku.edu>, director
 * ResiliNets Research Group  http://wiki.ittc.ku.edu/resilinets
 * Information and Telecommunication Technology Center (ITTC)
 * and Department of Electrical Engineering and Computer Science
 * The University of Kansas Lawrence, KS USA.
 *
 * Work supported in part by NSF FIND (Future Internet Design) Program
 * under grant CNS-0626918 (Postmodern Internet Architecture),
 * NSF grant CNS-1050226 (Multilayer Network Resilience Analysis and Experimentation on GENI),
 * US Department of Defense (DoD), and ITTC at The University of Kansas.
 */

#ifndef DSR_FS_HEADER_H
#define DSR_FS_HEADER_H

#include <vector>
#include <list>
#include <ostream>

#include "ns3/header.h"
#include "ns3/ipv4-address.h"
#include "dsr-option-header.h"

namespace ns3 {
namespace dsr {
class DsrFsHeader : public Header
{
public:
  static TypeId GetTypeId ();
  virtual TypeId GetInstanceTypeId () const;
  DsrFsHeader ();
  virtual ~DsrFsHeader ();
  void SetNextHeader (uint8_t protocol);
  uint8_t GetNextHeader () const;
  void SetMessageType (uint8_t messageType);
  uint8_t GetMessageType () const;
  void SetSourceId (uint16_t sourceId);
  uint16_t GetSourceId () const;
  void SetDestId (uint16_t destId);
  uint16_t GetDestId () const;
  void SetPayloadLength (uint16_t length);
  uint16_t GetPayloadLength () const;
  virtual void Print (std::ostream &os) const;
  virtual uint32_t GetSerializedSize () const;
  virtual void Serialize (Buffer::Iterator start) const;
  virtual uint32_t Deserialize (Buffer::Iterator start);

private:
  uint8_t m_nextHeader;
  uint8_t m_messageType;
  uint16_t m_payloadLen;
  uint16_t m_sourceId;
  uint16_t m_destId;
  Buffer m_data;
};

class DsrOptionField
{
public:
  DsrOptionField (uint32_t optionsOffset);
  ~DsrOptionField ();
  uint32_t GetSerializedSize () const;
  void Serialize (Buffer::Iterator start) const;
  uint32_t Deserialize (Buffer::Iterator start, uint32_t length);
  void AddDsrOption (DsrOptionHeader const& option);
  uint32_t GetDsrOptionsOffset ();
  Buffer GetDsrOptionBuffer ();

private:
  uint32_t CalculatePad (DsrOptionHeader::Alignment alignment) const;
  Buffer m_optionData;
  uint32_t m_optionsOffset;
};

class DsrRoutingHeader : public DsrFsHeader,
                         public DsrOptionField
{
public:
  static TypeId GetTypeId ();
  virtual TypeId GetInstanceTypeId () const;
  DsrRoutingHeader ();
  virtual ~DsrRoutingHeader ();
  virtual void Print (std::ostream &os) const;
  virtual uint32_t GetSerializedSize () const;
  virtual void Serialize (Buffer::Iterator start) const;
  virtual uint32_t Deserialize (Buffer::Iterator start);
};

static inline std::ostream & operator<< (std::ostream& os, const DsrRoutingHeader & dsr)
{
  dsr.Print (os);
  return os;
}

}  // namespace dsr
}  // namespace ns3

#endif /* DSR_FS_HEADER_H */