/usr/include/ns3.26/ns3/mac-rx-middle.h is in libns3-dev 3.26+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 | /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2005 INRIA
*
* 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: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
*/
#ifndef MAC_RX_MIDDLE_H
#define MAC_RX_MIDDLE_H
#include <map>
#include <utility>
#include "ns3/callback.h"
#include "ns3/mac48-address.h"
#include "ns3/packet.h"
namespace ns3 {
class WifiMacHeader;
class OriginatorRxStatus;
/**
* \ingroup wifi
*
* This class handles duplicate detection and recomposition of fragments.
*/
class MacRxMiddle
{
public:
/**
* typedef for callback
*/
typedef Callback<void, Ptr<Packet>, const WifiMacHeader*> ForwardUpCallback;
MacRxMiddle ();
~MacRxMiddle ();
/**
* Set a callback to forward the packet up.
*
* \param callback
*/
void SetForwardCallback (ForwardUpCallback callback);
void Receive (Ptr<Packet> packet, const WifiMacHeader *hdr);
private:
friend class MacRxMiddleTest;
/**
* Look up for OriginatorRxStatus associated with the sender address
* (by looking at ADDR2 field in the header).
* The method creates a new OriginatorRxStatus if one is not already presented.
*
* \param hdr
*
* \return OriginatorRxStatus
*/
OriginatorRxStatus* Lookup (const WifiMacHeader* hdr);
/**
* Check if we have already received the packet from the sender before
* (by looking at the sequence control field).
*
* \param hdr
* \param originator
*
* \return true if we already received the packet previously,
* false otherwise
*/
bool IsDuplicate (const WifiMacHeader* hdr, OriginatorRxStatus *originator) const;
/**
* Check if the received packet is a fragment and handle it appropriately.
* If the packet is not a fragment, the method returns the packet.
* If the packet is a fragment (not the last fragment), the method initiates
* de-fragmentation process and return 0.
* If the packet is the last fragment, the method tries to re-construct the full packet
* and return the packet if success.
*
* \param packet
* \param hdr
* \param originator
*
* \return a packet if the packet is successfully reassembled (or not a fragment),
* 0 if we failed to reassemble the packet (e.g. missing fragments/out-of-order).
*/
Ptr<Packet> HandleFragments (Ptr<Packet> packet, const WifiMacHeader* hdr,
OriginatorRxStatus *originator);
/**
* typedef for a map between address and OriginatorRxStatus
*/
typedef std::map <Mac48Address, OriginatorRxStatus *, std::less<Mac48Address> > Originators;
/**
* typedef for a map between address, OriginatorRxStatus, and Traffic ID
*/
typedef std::map <std::pair<Mac48Address, uint8_t>, OriginatorRxStatus *, std::less<std::pair<Mac48Address,uint8_t> > > QosOriginators;
/**
* typedef for an interator for Originators
*/
typedef std::map <Mac48Address, OriginatorRxStatus *, std::less<Mac48Address> >::iterator OriginatorsI;
/**
* typedef for an interator for QosOriginators
*/
typedef std::map <std::pair<Mac48Address, uint8_t>, OriginatorRxStatus *, std::less<std::pair<Mac48Address,uint8_t> > >::iterator QosOriginatorsI;
Originators m_originatorStatus;
QosOriginators m_qosOriginatorStatus;
ForwardUpCallback m_callback;
};
} //namespace ns3
#endif /* MAC_RX_MIDDLE_H */
|