/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */

/*

 * Copyright (c) 2008,2009 IITP RAS

 *

 * 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: Kirill Andreev <andreev@iitp.ru>

 *          Aleksey Kovalenko <kovalenko@iitp.ru>

 */

#ifndef MESH_PEER_MAN_ELEMENT

#define MESH_PEER_MAN_ELEMENT

#include "ns3/dot11s-codes.h"

#include "ns3/wifi-information-element.h"

namespace ns3 {

namespace dot11s {

/**

 * \ingroup dot11s

 * \brief See 7.3.2.85 of draft 2.07

 */

{

public:

    enum Subtype {

      PEER_OPEN    = 0,

      PEER_CLOSE   = 1,

      PEER_CONFIRM = 2,

    };

  void   SetPeerOpen (uint16_t localLinkId);

  void   SetPeerClose (uint16_t localLinkID, uint16_t peerLinkId, dot11sReasonCode reasonCode);

  void   SetPeerConfirm (uint16_t localLinkID, uint16_t peerLinkId);

  dot11sReasonCode GetReasonCode () const;

  uint16_t  GetLocalLinkId () const;

  uint16_t  GetPeerLinkId () const;

  bool   SubtypeIsOpen () const;

  bool   SubtypeIsClose () const;

  bool   SubtypeIsConfirm () const ;

  uint8_t GetSubtype() const { return m_subtype;};

private:

  WifiElementId ElementId () const{

    return IE11S_PEER_LINK_MANAGEMENT;

  }

  uint8_t  GetInformationSize (void) const;

  void SerializeInformation (Buffer::Iterator i) const;

  uint8_t DeserializeInformation (Buffer::Iterator i, uint8_t length);

  void PrintInformation (std::ostream& os) const;

private:

  uint8_t   m_length;

  uint8_t   m_subtype;

  uint16_t  m_localLinkId;

  /**

   * Present within confirm and may be present in close

   */

  uint16_t  m_peerLinkId;

  /**

   * Present only within close frame

   */

  dot11sReasonCode m_reasonCode;

};

} // namespace dot11s

} //namespace ns3

#endif