wifi-acknowledgment.h

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2020 Universita' degli Studi di Napoli Federico II
 *
 * 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: Stefano Avallone <stavallo@unina.it>
 */
 
#ifndef WIFI_ACKNOWLEDGMENT_H
#define WIFI_ACKNOWLEDGMENT_H
 
#include "ns3/nstime.h"
#include "wifi-tx-vector.h"
#include "block-ack-type.h"
#include "wifi-mac-header.h"
#include "ctrl-headers.h"
#include <map>
#include <memory>
 
 
namespace ns3 {
 
class Mac48Address;
 
struct WifiAcknowledgment
{
  enum Method
    {
      NONE = 0,
      NORMAL_ACK,
      BLOCK_ACK,
      BAR_BLOCK_ACK,
      DL_MU_BAR_BA_SEQUENCE,
      DL_MU_TF_MU_BAR,
      DL_MU_AGGREGATE_TF,
      UL_MU_MULTI_STA_BA,
      ACK_AFTER_TB_PPDU
    };
 
  WifiAcknowledgment (Method m);
  virtual ~WifiAcknowledgment ();
 
  virtual std::unique_ptr<WifiAcknowledgment> Copy (void) const = 0;
 
  WifiMacHeader::QosAckPolicy GetQosAckPolicy (Mac48Address receiver, uint8_t tid) const;
 
  void SetQosAckPolicy (Mac48Address receiver, uint8_t tid, WifiMacHeader::QosAckPolicy ackPolicy);
 
  virtual void Print (std::ostream &os) const = 0;
 
  const Method method;       
  Time acknowledgmentTime;   
 
private:
  virtual bool CheckQosAckPolicy (Mac48Address receiver, uint8_t tid,
                                  WifiMacHeader::QosAckPolicy ackPolicy) const = 0;
 
  std::map<std::pair<Mac48Address, uint8_t>, WifiMacHeader::QosAckPolicy> m_ackPolicy;
};
 
 
struct WifiNoAck : public WifiAcknowledgment
{
  WifiNoAck ();
 
  std::unique_ptr<WifiAcknowledgment> Copy (void) const override;
  bool CheckQosAckPolicy (Mac48Address receiver, uint8_t tid, WifiMacHeader::QosAckPolicy ackPolicy) const override;
  void Print (std::ostream &os) const override;
};
 
 
struct WifiNormalAck : public WifiAcknowledgment
{
  WifiNormalAck ();
 
  std::unique_ptr<WifiAcknowledgment> Copy (void) const override;
  bool CheckQosAckPolicy (Mac48Address receiver, uint8_t tid, WifiMacHeader::QosAckPolicy ackPolicy) const override;
  void Print (std::ostream &os) const override;
 
  WifiTxVector ackTxVector;       
};
 
 
struct WifiBlockAck : public WifiAcknowledgment
{
  WifiBlockAck ();
 
  std::unique_ptr<WifiAcknowledgment> Copy (void) const override;
  bool CheckQosAckPolicy (Mac48Address receiver, uint8_t tid, WifiMacHeader::QosAckPolicy ackPolicy) const override;
  void Print (std::ostream &os) const override;
 
  WifiTxVector blockAckTxVector;       
  BlockAckType baType;                 
};
 
 
struct WifiBarBlockAck : public WifiAcknowledgment
{
  WifiBarBlockAck ();
 
  std::unique_ptr<WifiAcknowledgment> Copy (void) const override;
  bool CheckQosAckPolicy (Mac48Address receiver, uint8_t tid, WifiMacHeader::QosAckPolicy ackPolicy) const override;
  void Print (std::ostream &os) const override;
 
  WifiTxVector blockAckReqTxVector;    
  WifiTxVector blockAckTxVector;       
  BlockAckReqType barType;             
  BlockAckType baType;                 
};
 
 
struct WifiDlMuBarBaSequence : public WifiAcknowledgment
{
  WifiDlMuBarBaSequence ();
 
  std::unique_ptr<WifiAcknowledgment> Copy (void) const override;
  bool CheckQosAckPolicy (Mac48Address receiver, uint8_t tid, WifiMacHeader::QosAckPolicy ackPolicy) const override;
  void Print (std::ostream &os) const override;
 
  struct AckInfo
  {
    WifiTxVector ackTxVector;          
  };
  struct BlockAckInfo
  {
    WifiTxVector blockAckTxVector;     
    BlockAckType baType;               
  };
  struct BlockAckReqInfo
  {
    WifiTxVector blockAckReqTxVector;  
    BlockAckReqType barType;           
    WifiTxVector blockAckTxVector;     
    BlockAckType baType;               
  };
 
  std::map<Mac48Address, AckInfo> stationsReplyingWithNormalAck;
  std::map<Mac48Address, BlockAckInfo> stationsReplyingWithBlockAck;
  std::map<Mac48Address, BlockAckReqInfo> stationsSendBlockAckReqTo;
};
 
 
struct WifiDlMuTfMuBar : public WifiAcknowledgment
{
  WifiDlMuTfMuBar ();
 
  std::unique_ptr<WifiAcknowledgment> Copy (void) const override;
  bool CheckQosAckPolicy (Mac48Address receiver, uint8_t tid, WifiMacHeader::QosAckPolicy ackPolicy) const override;
  void Print (std::ostream &os) const override;
 
  struct BlockAckInfo
  {
    CtrlBAckRequestHeader barHeader;   
    WifiTxVector blockAckTxVector;     
    BlockAckType baType;               
  };
 
  std::map<Mac48Address, BlockAckInfo> stationsReplyingWithBlockAck;
  std::list<BlockAckReqType> barTypes; 
  uint16_t ulLength;                   
  WifiTxVector muBarTxVector;          
};
 
 
struct WifiDlMuAggregateTf : public WifiAcknowledgment
{
  WifiDlMuAggregateTf ();
 
  std::unique_ptr<WifiAcknowledgment> Copy (void) const override;
  bool CheckQosAckPolicy (Mac48Address receiver, uint8_t tid, WifiMacHeader::QosAckPolicy ackPolicy) const override;
  void Print (std::ostream &os) const override;
 
  struct BlockAckInfo
  {
    uint32_t muBarSize;                
    CtrlBAckRequestHeader barHeader;   
    WifiTxVector blockAckTxVector;     
    BlockAckType baType;               
  };
 
  std::map<Mac48Address, BlockAckInfo> stationsReplyingWithBlockAck;
  uint16_t ulLength;                   
};
 
 
struct WifiUlMuMultiStaBa : public WifiAcknowledgment
{
  WifiUlMuMultiStaBa ();
 
  std::unique_ptr<WifiAcknowledgment> Copy (void) const override;
  bool CheckQosAckPolicy (Mac48Address receiver, uint8_t tid, WifiMacHeader::QosAckPolicy ackPolicy) const override;
  void Print (std::ostream &os) const override;
 
  std::map<std::pair<Mac48Address, uint8_t>, std::size_t> stationsReceivingMultiStaBa;
  BlockAckType baType;                 
  WifiTxVector tbPpduTxVector;         
  WifiTxVector multiStaBaTxVector;     
};
 
 
struct WifiAckAfterTbPpdu : public WifiAcknowledgment
{
  WifiAckAfterTbPpdu ();
 
  std::unique_ptr<WifiAcknowledgment> Copy (void) const override;
  bool CheckQosAckPolicy (Mac48Address receiver, uint8_t tid, WifiMacHeader::QosAckPolicy ackPolicy) const override;
  void Print (std::ostream &os) const override;
};
 
 
std::ostream& operator<< (std::ostream& os, const WifiAcknowledgment* acknowledgment);
 
} //namespace ns3
 
#endif /* WIFI_ACKNOWLEDGMENT_H */