wifi-information-element.h

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2010 Dean Armstrong
 *
 * 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
 *
 * Authors: Dean Armstrong <deanarm@gmail.com>
 */

#ifndef WIFI_INFORMATION_ELEMENT_H
#define WIFI_INFORMATION_ELEMENT_H

#include "ns3/header.h"
#include "ns3/simple-ref-count.h"

namespace ns3 {

typedef uint8_t WifiInformationElementId;


#define IE_SSID                                ((WifiInformationElementId)0)
#define IE_SUPPORTED_RATES                     ((WifiInformationElementId)1)
#define IE_FH_PARAMETER_SET                    ((WifiInformationElementId)2)
#define IE_DS_PARAMETER_SET                    ((WifiInformationElementId)3)
#define IE_CF_PARAMETER_SET                    ((WifiInformationElementId)4)
#define IE_TIM                                 ((WifiInformationElementId)5)
#define IE_IBSS_PARAMETER_SET                  ((WifiInformationElementId)6)
#define IE_COUNTRY                             ((WifiInformationElementId)7)
#define IE_HOPPING_PATTERN_PARAMETERS          ((WifiInformationElementId)8)
#define IE_HOPPING_PATTERN_TABLE               ((WifiInformationElementId)9)
#define IE_REQUEST                             ((WifiInformationElementId)10)
#define IE_BSS_LOAD                            ((WifiInformationElementId)11)
#define IE_EDCA_PARAMETER_SET                  ((WifiInformationElementId)12)
#define IE_TSPEC                               ((WifiInformationElementId)13)
#define IE_TCLAS                               ((WifiInformationElementId)14)
#define IE_SCHEDULE                            ((WifiInformationElementId)15)
#define IE_CHALLENGE_TEXT                      ((WifiInformationElementId)16)
// 17 to 31 are reserved in 802.11-2007
#define IE_POWER_CONSTRAINT                    ((WifiInformationElementId)32)
#define IE_POWER_CAPABILITY                    ((WifiInformationElementId)33)
#define IE_TPC_REQUEST                         ((WifiInformationElementId)34)
#define IE_TPC_REPORT                          ((WifiInformationElementId)35)
#define IE_SUPPORTED_CHANNELS                  ((WifiInformationElementId)36)
#define IE_CHANNEL_SWITCH_ANNOUNCEMENT         ((WifiInformationElementId)37)
#define IE_MEASUREMENT_REQUEST                 ((WifiInformationElementId)38)
#define IE_MEASUREMENT_REPORT                  ((WifiInformationElementId)39)
#define IE_QUIET                               ((WifiInformationElementId)40)
#define IE_IBSS_DFS                            ((WifiInformationElementId)41)
#define IE_ERP_INFORMATION                     ((WifiInformationElementId)42)
#define IE_TS_DELAY                            ((WifiInformationElementId)43)
#define IE_TCLAS_PROCESSING                    ((WifiInformationElementId)44)
#define IE_HT_CAPABILITIES                     ((WifiInformationElementId)45)
#define IE_QOS_CAPABILITY                      ((WifiInformationElementId)46)
// 47 is reserved in 802.11-2007
#define IE_RSN                                 ((WifiInformationElementId)48)
// 49 is reserved in 802.11-2007
#define IE_EXTENDED_SUPPORTED_RATES            ((WifiInformationElementId)50)
// 51 to 126 are reserved in 802.11-2007
#define IE_EXTENDED_CAPABILITIES               ((WifiInformationElementId)127)
// 128 to 220 are reserved in 802.11-2007
#define IE_VENDOR_SPECIFIC                     ((WifiInformationElementId)221)
// 222 to 255 are reserved in 802.11-2007


class WifiInformationElement : public SimpleRefCount<WifiInformationElement>
{
public:
  virtual ~WifiInformationElement ();
  Buffer::Iterator Serialize (Buffer::Iterator i) const;
  Buffer::Iterator Deserialize (Buffer::Iterator i);
  Buffer::Iterator DeserializeIfPresent (Buffer::Iterator i);
  uint16_t GetSerializedSize () const;

  // Each subclass must implement these pure virtual functions:
  virtual WifiInformationElementId ElementId () const = 0;
  virtual uint8_t GetInformationFieldSize () const = 0;
  virtual void SerializeInformationField (Buffer::Iterator start) const = 0;
  virtual uint8_t DeserializeInformationField (Buffer::Iterator start,
                                               uint8_t length) = 0;

  // In addition, a subclass my optionally override the following...
  virtual void Print (std::ostream &os) const;
  virtual bool operator< (WifiInformationElement const & a) const;
  virtual bool operator== (WifiInformationElement const & a) const;

};

}
#endif /* WIFI_INFORMATION_ELEMENT_H */