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 QAP_WIFI_MAC_H

    23 #define QAP_WIFI_MAC_H

    24 

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

    26 #include "ns3/callback.h"

    27 #include "ns3/packet.h"

    28 #include "ns3/nstime.h"

    29 #include "ns3/event-id.h"

    30 

    31 #include "supported-rates.h"

    32 #include "wifi-remote-station-manager.h"

    33 #include "wifi-mac.h"

    34 #include "qos-utils.h"

    35 

    36 #include <map>

    37 

    38 namespace ns3 {

    39 

    40 class DcaTxop;

    41 class EdcaTxopN;

    42 class WifiMacHeader;

    43 class WifiPhy;

    44 class MacLow;

    45 class MacRxMiddle;

    46 class MacTxMiddle;

    47 class DcfManager;

    48 class AmsduSubframeHeader;

    49 class MsduAggregator;

    50 

    51 class QapWifiMac : public WifiMac

    52 {

    53 public:

    54   static TypeId GetTypeId (void);

    55   QapWifiMac ();

    56   virtual ~QapWifiMac ();

    57   

    58   // inherited from WifiMac.

    59   virtual void SetSlot (Time slotTime);

    60   virtual void SetSifs (Time sifs);

    61   virtual void SetEifsNoDifs (Time eifsNoDifs);

    62   virtual void SetAckTimeout (Time ackTimeout);

    63   virtual void SetCtsTimeout (Time ctsTimeout);

    64   virtual void SetPifs (Time pifs);

    65   virtual Time GetSlot (void) const;

    66   virtual Time GetSifs (void) const;

    67   virtual Time GetEifsNoDifs (void) const;

    68   virtual Time GetAckTimeout (void) const;

    69   virtual Time GetCtsTimeout (void) const;

    70   virtual Time GetPifs (void) const;

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

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

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

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

    75   virtual bool SupportsSendFrom (void) const;

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

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

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

    79   virtual Mac48Address GetAddress (void) const;

    80   virtual Ssid GetSsid (void) const;

    81   virtual void SetAddress (Mac48Address address);

    82   virtual void SetSsid (Ssid ssid);

    83   virtual Mac48Address GetBssid (void) const;

    84 

    85   void SetBeaconInterval (Time interval);

    86   Time GetBeaconInterval (void) const;

    87   void StartBeaconing (void);

    88 

    89 private:

    90   virtual void DoDispose (void);

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

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

    93   void ForwardDown (Ptr<const Packet> packet, Mac48Address from, Mac48Address to);

    94   /* Next function is invoked only when ap relies a frame. */

    95   void ForwardDown (Ptr<const Packet> packet, Mac48Address from, Mac48Address to,

    96                     WifiMacHeader const *oldHdr);

    97   void TxOk (WifiMacHeader const &hdr);

    98   void TxFailed (WifiMacHeader const &hdr);

    99   void SendProbeResp (Mac48Address to);

   100   void SendAssocResp (Mac48Address to, bool success);

   101   void SendOneBeacon (void);

   102   SupportedRates GetSupportedRates (void) const;

   103   void SetBeaconGeneration (bool enable);

   104   bool GetBeaconGeneration (void) const;

   105   

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

   107 

   108   typedef std::map<AccessClass, Ptr<EdcaTxopN> > Queues;

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

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

   111 

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

   113   

   114   Ptr<EdcaTxopN> GetVOQueue (void) const;

   115   Ptr<EdcaTxopN> GetVIQueue (void) const;

   116   Ptr<EdcaTxopN> GetBEQueue (void) const;

   117   Ptr<EdcaTxopN> GetBKQueue (void) const;

   118 

   119   void SetVOQueue (Ptr<EdcaTxopN> voQueue);

   120   void SetVIQueue (Ptr<EdcaTxopN> viQueue);

   121   void SetBEQueue (Ptr<EdcaTxopN> beQueue);

   122   void SetBKQueue (Ptr<EdcaTxopN> bkQueue);

   123 

   124   /*Next map is used only for an esay access to a specific queue*/

   125   Queues m_queues;

   126   Ptr<EdcaTxopN> m_voEdca;

   127   Ptr<EdcaTxopN> m_viEdca;

   128   Ptr<EdcaTxopN> m_beEdca;

   129   Ptr<EdcaTxopN> m_bkEdca;

   130   Ptr<DcaTxop> m_beaconDca;

   131   Ptr<MacLow> m_low;

   132   Ptr<WifiPhy> m_phy;

   133   Ptr<WifiRemoteStationManager> m_stationManager;

   134   MacRxMiddle *m_rxMiddle;

   135   MacTxMiddle *m_txMiddle;

   136   DcfManager *m_dcfManager;

   137   Ssid m_ssid;

   138   EventId m_beaconEvent;

   139   Time m_beaconInterval;

   140   Time m_eifsNoDifs;

   141 };

   142 

   143 }  //namespace ns3

   144 

   145 #endif /* QAP_WIFI_MAC_H */