hwmp-protocol-mac.h

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/* -*- 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
 *
 * Author: Kirill Andreev <andreev@iitp.ru>
 */
 
#ifndef HWMP_STATE_H
#define HWMP_STATE_H
 
#include "ns3/mesh-wifi-interface-mac-plugin.h"
#include "ns3/hwmp-protocol.h"
 
namespace ns3 {
 
class MeshWifiInterfaceMac;
class WifiActionHeader;
 
namespace dot11s {
 
class IePreq;
class IePrep;
class IePerr;
 
class HwmpProtocolMac : public MeshWifiInterfaceMacPlugin
{
public:
  HwmpProtocolMac (uint32_t ifIndex, Ptr<HwmpProtocol> protocol);
  ~HwmpProtocolMac ();
 
  // Inherited from MAC plugin
  void SetParent (Ptr<MeshWifiInterfaceMac> parent);
  bool Receive (Ptr<Packet> packet, const WifiMacHeader & header);
  bool UpdateOutcomingFrame (Ptr<Packet> packet, WifiMacHeader & header, Mac48Address from, Mac48Address to);
  // Update beacon is empty, because HWMP does not know anything about beacons
  void UpdateBeacon (MeshWifiBeacon & beacon) const {};
  int64_t AssignStreams (int64_t stream);
 
private:
  friend class HwmpProtocol;
  static WifiActionHeader GetWifiActionHeader ();
 
  void SendPreq (IePreq preq);
  void SendPreqVector (std::vector<IePreq> preq);
  void SendPrep (IePrep prep, Mac48Address receiver);
  void ForwardPerr (std::vector<HwmpProtocol::FailedDestination> destinations, std::vector<Mac48Address> receivers);
  void InitiatePerr (std::vector<HwmpProtocol::FailedDestination> destinations, std::vector<Mac48Address> receivers);
  void RequestDestination (Mac48Address dest, uint32_t originator_seqno, uint32_t dst_seqno);
 
  void SendMyPreq ();
  void SendMyPerr ();
  uint32_t GetLinkMetric (Mac48Address peerAddress) const;
  uint16_t GetChannelId () const;
  void Report (std::ostream & os) const;
  void ResetStats ();
private:
  Ptr<MeshWifiInterfaceMac> m_parent; 
  uint32_t m_ifIndex; 
  Ptr<HwmpProtocol> m_protocol; 
 
  EventId m_preqTimer; 
  std::vector<IePreq>  m_myPreq; 
 
  EventId m_perrTimer;
  struct MyPerr {
    std::vector<HwmpProtocol::FailedDestination> destinations; 
    std::vector<Mac48Address> receivers; 
  };
  MyPerr m_myPerr; 
 
 
  struct Statistics
  {
    uint16_t txPreq; 
    uint16_t rxPreq; 
    uint16_t txPrep; 
    uint16_t rxPrep; 
    uint16_t txPerr; 
    uint16_t rxPerr; 
    uint16_t txMgt; 
    uint32_t txMgtBytes; 
    uint16_t rxMgt; 
    uint32_t rxMgtBytes; 
    uint16_t txData; 
    uint32_t txDataBytes; 
    uint16_t rxData; 
    uint32_t rxDataBytes; 
    void Print (std::ostream & os) const;
    Statistics ();
  };
 
  Statistics m_stats; 
 
private:
  bool ReceiveData (Ptr<Packet> packet, const WifiMacHeader & header);
  bool ReceiveAction (Ptr<Packet> packet, const WifiMacHeader & header);
};
} // namespace dot11s
} // namespace ns3
#endif