wifi-mac-header.h

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2006, 2009 INRIA
 * Copyright (c) 2009 MIRKO BANCHI
 *
 * 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: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
 * Author: Mirko Banchi <mk.banchi@gmail.com>
 */

#ifndef WIFI_MAC_HEADER_H
#define WIFI_MAC_HEADER_H

#include "ns3/header.h"
#include "ns3/mac48-address.h"

namespace ns3 {

class Time;

enum WifiMacType
{
  WIFI_MAC_CTL_CTLWRAPPER = 0,
  WIFI_MAC_CTL_RTS,
  WIFI_MAC_CTL_CTS,
  WIFI_MAC_CTL_ACK,
  WIFI_MAC_CTL_BACKREQ,
  WIFI_MAC_CTL_BACKRESP,
  WIFI_MAC_CTL_END,
  WIFI_MAC_CTL_END_ACK,

  WIFI_MAC_MGT_BEACON,
  WIFI_MAC_MGT_ASSOCIATION_REQUEST,
  WIFI_MAC_MGT_ASSOCIATION_RESPONSE,
  WIFI_MAC_MGT_DISASSOCIATION,
  WIFI_MAC_MGT_REASSOCIATION_REQUEST,
  WIFI_MAC_MGT_REASSOCIATION_RESPONSE,
  WIFI_MAC_MGT_PROBE_REQUEST,
  WIFI_MAC_MGT_PROBE_RESPONSE,
  WIFI_MAC_MGT_AUTHENTICATION,
  WIFI_MAC_MGT_DEAUTHENTICATION,
  WIFI_MAC_MGT_ACTION,
  WIFI_MAC_MGT_ACTION_NO_ACK,
  WIFI_MAC_MGT_MULTIHOP_ACTION,

  WIFI_MAC_DATA,
  WIFI_MAC_DATA_CFACK,
  WIFI_MAC_DATA_CFPOLL,
  WIFI_MAC_DATA_CFACK_CFPOLL,
  WIFI_MAC_DATA_NULL,
  WIFI_MAC_DATA_NULL_CFACK,
  WIFI_MAC_DATA_NULL_CFPOLL,
  WIFI_MAC_DATA_NULL_CFACK_CFPOLL,
  WIFI_MAC_QOSDATA,
  WIFI_MAC_QOSDATA_CFACK,
  WIFI_MAC_QOSDATA_CFPOLL,
  WIFI_MAC_QOSDATA_CFACK_CFPOLL,
  WIFI_MAC_QOSDATA_NULL,
  WIFI_MAC_QOSDATA_NULL_CFPOLL,
  WIFI_MAC_QOSDATA_NULL_CFACK_CFPOLL,
};

class WifiMacHeader : public Header
{
public:
  enum QosAckPolicy
  {
    NORMAL_ACK = 0,
    NO_ACK = 1,
    NO_EXPLICIT_ACK = 2,
    BLOCK_ACK = 3,
  };

  enum AddressType
  {
    ADDR1,
    ADDR2,
    ADDR3,
    ADDR4
  };

  WifiMacHeader ();
  virtual ~WifiMacHeader ();

  static TypeId GetTypeId (void);
  TypeId GetInstanceTypeId (void) const;
  void Print (std::ostream &os) const;
  uint32_t GetSerializedSize (void) const;
  void Serialize (Buffer::Iterator start) const;
  uint32_t Deserialize (Buffer::Iterator start);

  void SetDsFrom (void);
  void SetDsNotFrom (void);
  void SetDsTo (void);
  void SetDsNotTo (void);
  void SetAddr1 (Mac48Address address);
  void SetAddr2 (Mac48Address address);
  void SetAddr3 (Mac48Address address);
  void SetAddr4 (Mac48Address address);
  void SetType (WifiMacType type, bool resetToDsFromDs = true);
  void SetRawDuration (uint16_t duration);
  void SetDuration (Time duration);
  void SetId (uint16_t id);
  void SetSequenceNumber (uint16_t seq);
  void SetFragmentNumber (uint8_t frag);
  void SetNoMoreFragments (void);
  void SetMoreFragments (void);
  void SetRetry (void);
  void SetNoRetry (void);
  void SetQosTid (uint8_t tid);
  void SetQosEosp ();
  void SetQosNoEosp ();
  void SetQosAckPolicy (QosAckPolicy policy);
  void SetQosAmsdu (void);
  void SetQosNoAmsdu (void);
  void SetQosTxopLimit (uint8_t txop);
  void SetQosMeshControlPresent ();
  void SetQosNoMeshControlPresent ();
  void SetOrder (void);
  void SetNoOrder (void);

  Mac48Address GetAddr1 (void) const;
  Mac48Address GetAddr2 (void) const;
  Mac48Address GetAddr3 (void) const;
  Mac48Address GetAddr4 (void) const;
  WifiMacType GetType (void) const;
  bool IsFromDs (void) const;
  bool IsToDs (void) const;
  bool IsData (void) const;
  bool IsQosData (void) const;
  bool HasData (void) const;
  bool IsCtl (void) const;
  bool IsMgt (void) const;
  bool IsCfPoll (void) const;
  bool IsCfAck (void) const;
  bool IsCfEnd (void) const;
  bool IsRts (void) const;
  bool IsCts (void) const;
  bool IsAck (void) const;
  bool IsBlockAckReq (void) const;
  bool IsBlockAck (void) const;
  bool IsAssocReq (void) const;
  bool IsAssocResp (void) const;
  bool IsReassocReq (void) const;
  bool IsReassocResp (void) const;
  bool IsProbeReq (void) const;
  bool IsProbeResp (void) const;
  bool IsBeacon (void) const;
  bool IsDisassociation (void) const;
  bool IsAuthentication (void) const;
  bool IsDeauthentication (void) const;
  bool IsAction () const;
  bool IsMultihopAction () const;
  uint16_t GetRawDuration (void) const;
  Time GetDuration (void) const;
  uint16_t GetSequenceControl (void) const;
  uint16_t GetSequenceNumber (void) const;
  uint8_t GetFragmentNumber (void) const;
  bool IsRetry (void) const;
  bool IsMoreFragments (void) const;
  bool IsQosBlockAck (void) const;
  bool IsQosNoAck (void) const;
  bool IsQosAck (void) const;
  bool IsQosEosp (void) const;
  bool IsQosAmsdu (void) const;
  uint8_t GetQosTid (void) const;
  uint32_t GetSize (void) const;
  const char * GetTypeString (void) const;

  typedef void (* TracedCallback)(const WifiMacHeader &header);


private:
  uint16_t GetFrameControl (void) const;
  uint16_t GetQosControl (void) const;
  void SetFrameControl (uint16_t control);
  void SetSequenceControl (uint16_t seq);
  void SetQosControl (uint16_t qos);
  void PrintFrameControl (std::ostream &os) const;

  uint8_t m_ctrlType; 
  uint8_t m_ctrlSubtype; 
  uint8_t m_ctrlToDs; 
  uint8_t m_ctrlFromDs; 
  uint8_t m_ctrlMoreFrag; 
  uint8_t m_ctrlRetry; 
  uint8_t m_ctrlMoreData; 
  uint8_t m_ctrlWep; 
  uint8_t m_ctrlOrder; 
  uint16_t m_duration; 
  Mac48Address m_addr1; 
  Mac48Address m_addr2; 
  Mac48Address m_addr3; 
  uint8_t m_seqFrag; 
  uint16_t m_seqSeq; 
  Mac48Address m_addr4; 
  uint8_t m_qosTid; 
  uint8_t m_qosEosp; 
  uint8_t m_qosAckPolicy; 
  uint8_t m_amsduPresent; 
  uint8_t m_qosStuff; 
};

} //namespace ns3

#endif /* WIFI_MAC_HEADER_H */