epc-gtpu-header.h

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/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2011 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)
 *
 * 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: Jaume Nin <jnin@cttc.cat>
 */


#ifndef EPS_GTPU_V1_H
#define EPS_GTPU_V1_H

#include <ns3/ptr.h>
#include <ns3/header.h>
#include <ns3/ipv4-header.h>

namespace ns3 {

class Packet;


class GtpuHeader : public Header
{
public:
  static TypeId GetTypeId (void);
  GtpuHeader ();
  virtual ~GtpuHeader ();
  virtual TypeId GetInstanceTypeId (void) const;
  virtual uint32_t GetSerializedSize (void) const;
  virtual void Serialize (Buffer::Iterator start) const;
  virtual uint32_t Deserialize (Buffer::Iterator start);
  virtual void Print (std::ostream &os) const;

  bool GetExtensionHeaderFlag () const;
  uint16_t GetLength () const;
  uint8_t GetMessageType () const;
  uint8_t GetNPduNumber () const;
  bool GetNPduNumberFlag () const;
  uint8_t GetNextExtensionType () const;
  bool GetProtocolType () const;
  uint16_t GetSequenceNumber () const;
  bool GetSequenceNumberFlag () const;
  uint32_t GetTeid () const;
  uint8_t GetVersion () const;
  void SetExtensionHeaderFlag (bool extensionHeaderFlag);
  void SetLength (uint16_t length);
  void SetMessageType (uint8_t messageType);
  void SetNPduNumber (uint8_t nPduNumber);
  void SetNPduNumberFlag (bool nPduNumberFlag);
  void SetNextExtensionType (uint8_t nextExtensionType);
  void SetProtocolType (bool protocolType);
  void SetSequenceNumber (uint16_t sequenceNumber);
  void SetSequenceNumberFlag (bool sequenceNumberFlag);
  void SetTeid (uint32_t teid);
  void SetVersion (uint8_t version);

  bool operator == (const GtpuHeader& b) const;


private:
  uint8_t m_version;   // really a 3 uint3_t

  bool m_protocolType;

  bool m_extensionHeaderFlag;

  bool m_sequenceNumberFlag;
  bool m_nPduNumberFlag;
  uint8_t m_messageType;
  uint16_t m_length;

  uint32_t m_teid;
  uint16_t m_sequenceNumber;
  uint8_t m_nPduNumber;
  uint8_t m_nextExtensionType;

};

} // namespace ns3

#endif /* EPS_GTPU_V1_H */