mesh-wifi-interface-mac.h

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/*
 * Copyright (c) 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>
 *          Pavel Boyko <boyko@iitp.ru>
 */
 
#ifndef MESH_WIFI_INTERFACE_MAC_H
#define MESH_WIFI_INTERFACE_MAC_H
 
#include "ns3/callback.h"
#include "ns3/event-id.h"
#include "ns3/mac48-address.h"
#include "ns3/mesh-wifi-interface-mac-plugin.h"
#include "ns3/mgt-headers.h"
#include "ns3/nstime.h"
#include "ns3/packet.h"
#include "ns3/wifi-mac.h"
 
#include <map>
#include <stdint.h>
 
namespace ns3
{
 
class UniformRandomVariable;
 
class MeshWifiInterfaceMac : public WifiMac
{
  public:
    static TypeId GetTypeId();
    MeshWifiInterfaceMac();
    ~MeshWifiInterfaceMac() override;
 
    // Inherited from WifiMac
    void Enqueue(Ptr<Packet> packet, Mac48Address to, Mac48Address from) override;
    void Enqueue(Ptr<Packet> packet, Mac48Address to) override;
    bool SupportsSendFrom() const override;
    void SetLinkUpCallback(Callback<void> linkUp) override;
    bool CanForwardPacketsTo(Mac48Address to) const override;
 
 
    void SetMeshPointAddress(Mac48Address addr);
    Mac48Address GetMeshPointAddress() const;
 
 
    void SetRandomStartDelay(Time interval);
    void SetBeaconInterval(Time interval);
    Time GetBeaconInterval() const;
    Time GetTbtt() const;
    void ShiftTbtt(Time shift);
 
    void InstallPlugin(Ptr<MeshWifiInterfaceMacPlugin> plugin);
 
    /*
     * Channel center frequency = Channel starting frequency + 5 * channel_id (MHz),
     * where Starting channel frequency is standard-dependent as defined in IEEE
     * 802.11-2007 17.3.8.3.2.
     *
     * Number of channels to use must be limited elsewhere.
     */
 
    uint16_t GetFrequencyChannel() const;
    void SwitchFrequencyChannel(uint16_t new_id);
 
    void SendManagementFrame(Ptr<Packet> frame, const WifiMacHeader& hdr);
    bool CheckSupportedRates(AllSupportedRates rates) const;
 
    AllSupportedRates GetSupportedRates() const;
 
 
    void SetLinkMetricCallback(Callback<uint32_t, Mac48Address, Ptr<MeshWifiInterfaceMac>> cb);
    uint32_t GetLinkMetric(Mac48Address peerAddress);
 
    void Report(std::ostream& os) const;
 
    void ResetStats();
 
    void SetBeaconGeneration(bool enable);
    void ConfigureStandard(WifiStandard standard) override;
    void ConfigureContentionWindow(uint32_t cwMin, uint32_t cwMax) override;
 
    int64_t AssignStreams(int64_t stream);
 
  private:
    void Receive(Ptr<const WifiMpdu> mpdu, uint8_t linkId) override;
    void ForwardDown(Ptr<Packet> packet, Mac48Address from, Mac48Address to);
    void SendBeacon();
    void ScheduleNextBeacon();
    bool GetBeaconGeneration() const;
    void DoDispose() override;
 
  private:
    typedef std::vector<Ptr<MeshWifiInterfaceMacPlugin>> PluginList; 
 
    void DoInitialize() override;
 
    bool m_beaconEnable;
    Time m_beaconInterval;
    Time m_randomStart;
    Time m_tbtt;
 
    Mac48Address m_mpAddress;
 
    EventId m_beaconSendEvent;
    PluginList m_plugins;
    Callback<uint32_t, Mac48Address, Ptr<MeshWifiInterfaceMac>>
        m_linkMetricCallback; 
 
    struct Statistics
    {
        uint16_t recvBeacons; 
        uint32_t sentFrames;  
        uint32_t sentBytes;   
        uint32_t recvFrames;  
        uint32_t recvBytes;   
        void Print(std::ostream& os) const;
        Statistics();
    };
 
    Statistics m_stats; 
 
    WifiStandard m_standard;
 
    Ptr<UniformRandomVariable> m_coefficient;
};
 
} // namespace ns3
 
#endif /* MESH_WIFI_INTERFACE_MAC_H */