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

     2 /*

     3  * Copyright (c) 2006, 2009 INRIA

     4  * Copyright (c) 2009 MIRKO BANCHI

     5  *

     6  * This program is free software; you can redistribute it and/or modify

     7  * it under the terms of the GNU General Public License version 2 as 

     8  * published by the Free Software Foundation;

     9  *

    10  * This program is distributed in the hope that it will be useful,

    11  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    13  * GNU General Public License for more details.

    14  *

    15  * You should have received a copy of the GNU General Public License

    16  * along with this program; if not, write to the Free Software

    17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    18  *

    19  * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>

    20  * Author: Mirko Banchi <mk.banchi@gmail.com>

    21  */

    22 #ifndef QADHOC_WIFI_MAC_H

    23 #define QADHOC_WIFI_MAC_H

    24 

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

    26 #include "ns3/callback.h"

    27 #include "ns3/packet.h"

    28 

    29 #include "wifi-mac.h"

    30 #include "qos-utils.h"

    31 #include "amsdu-subframe-header.h"

    32 

    33 namespace ns3 {

    34 

    35 class EdcaTxopN;

    36 class WifiMacHeader;

    37 class WifiPhy;

    38 class DcfManager;

    39 class MacLow;

    40 class MacRxMiddle;

    41 class MgtAddBaRequestHeader;

    42 

    43 class QadhocWifiMac : public WifiMac

    44 {

    45 public:

    46   static TypeId GetTypeId (void);

    47 

    48   QadhocWifiMac ();

    49   ~QadhocWifiMac ();

    50 

    51   // all inherited from WifiMac base class.

    52   virtual void SetSlot (Time slotTime);

    53   virtual void SetSifs (Time sifs);

    54   virtual void SetEifsNoDifs (Time eifsNoDifs);

    55   virtual void SetAckTimeout (Time ackTimeout);

    56   virtual void SetCtsTimeout (Time ctsTimeout);

    57   virtual void SetPifs (Time pifs);

    58   virtual Time GetSlot (void) const;

    59   virtual Time GetSifs (void) const;

    60   virtual Time GetEifsNoDifs (void) const;

    61   virtual Time GetAckTimeout (void) const;

    62   virtual Time GetCtsTimeout (void) const;

    63   virtual Time GetPifs (void) const;

    64   virtual void SetWifiPhy (Ptr<WifiPhy> phy);

    65   virtual void SetWifiRemoteStationManager (Ptr<WifiRemoteStationManager> stationManager);

    66   virtual void Enqueue (Ptr<const Packet> packet, Mac48Address to, Mac48Address from);

    67   virtual void Enqueue (Ptr<const Packet> packet, Mac48Address to);

    68   virtual bool SupportsSendFrom (void) const;

    69   virtual void SetForwardUpCallback (Callback<void,Ptr<Packet>, Mac48Address, Mac48Address> upCallback);

    70   virtual void SetLinkUpCallback (Callback<void> linkUp);

    71   virtual void SetLinkDownCallback (Callback<void> linkDown);

    72   virtual Mac48Address GetAddress (void) const;

    73   virtual Ssid GetSsid (void) const;

    74   virtual void SetAddress (Mac48Address address);

    75   virtual void SetSsid (Ssid ssid);

    76   virtual Mac48Address GetBssid (void) const;

    77   virtual void SetBasicBlockAckTimeout (Time blockAckTimeout);

    78   virtual void SetCompressedBlockAckTimeout (Time blockAckTimeout);

    79   virtual Time GetBasicBlockAckTimeout (void) const;

    80   virtual Time GetCompressedBlockAckTimeout (void) const;

    81 

    82 

    83 private:

    84   Callback<void, Ptr<Packet>, Mac48Address, Mac48Address> m_forwardUp;

    85   virtual void DoDispose (void);

    86   void DoStart ();

    87   void Receive (Ptr<Packet> packet, const WifiMacHeader *hdr);

    88   void ForwardUp (Ptr<Packet> packet, Mac48Address from, Mac48Address to);

    89   QadhocWifiMac &operator = (const QadhocWifiMac &);

    90   QadhocWifiMac (const QadhocWifiMac &);

    91   void SendAddBaResponse (const MgtAddBaRequestHeader *reqHdr, Mac48Address originator);

    92   

    93   /**

    94   * When an A-MSDU is received, is deaggregated by this method and all extracted packets are

    95   * forwarded up.

    96   */

    97   void DeaggregateAmsduAndForward (Ptr<Packet> aggregatedPacket, const WifiMacHeader *hdr);

    98 

    99   typedef std::map<AcIndex, Ptr<EdcaTxopN> > Queues;

   100   typedef std::list<std::pair<Ptr<Packet>, AmsduSubframeHeader> > DeaggregatedMsdus;

   101   typedef std::list<std::pair<Ptr<Packet>, AmsduSubframeHeader> >::const_iterator DeaggregatedMsdusCI;

   102 

   103   virtual void FinishConfigureStandard (enum WifiPhyStandard standard);

   104   void SetQueue (enum AcIndex ac);

   105   Ptr<EdcaTxopN> GetVOQueue (void) const;

   106   Ptr<EdcaTxopN> GetVIQueue (void) const;

   107   Ptr<EdcaTxopN> GetBEQueue (void) const;

   108   Ptr<EdcaTxopN> GetBKQueue (void) const;

   109 

   110   Queues m_queues;

   111   Ptr<MacLow> m_low;

   112   Ptr<WifiPhy> m_phy;

   113   Ptr<WifiRemoteStationManager> m_stationManager;

   114   MacRxMiddle *m_rxMiddle;

   115   MacTxMiddle *m_txMiddle;

   116   DcfManager *m_dcfManager;

   117   Ssid m_ssid;

   118   Time m_eifsNoDifs;

   119 };

   120 

   121 } //namespace ns3

   122 

   123 #endif /* QADHOC_WIFI_MAC_H */