marptable.h

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//
// Copyright (c) 2017 Regents of the SIGNET lab, University of Padova.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
// 3. Neither the name of the University of Padova (SIGNET lab) nor the
//    names of its contributors may be used to endorse or promote products
//    derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
 
// This module has only slightly modification as respect to the mll module
// contained  in Miracle,
// released under the same BSD copyright and implemented by
// Erik Andersson, Emil Ljungdahl, Lars-Olof Moilanen (Karlstad University)
 
#ifndef UW_ARPTABLE_H
#define UW_ARPTABLE_H
 
#include <map>
#include <packet.h>
 
#ifndef EADDRNOTAVAIL
#define EADDRNOTAVAIL 125
#endif /* !EADDRNOTAVAIL */
 
#ifndef DROP_IFQ_ARP_FULL
#define DROP_IFQ_ARP_FULL "ARP"
#endif
 
#define ARP_MAX_REQUEST_COUNT 3
 
class UWARPEntry
{
public:
    UWARPEntry(nsaddr_t dst)
        : up_(0)
        , macaddr_(0)
        , ipaddr_(dst)
        , hold_(0)
        , count_(0)
    {
    }
 
    int up_;
    nsaddr_t ipaddr_;
    int macaddr_;
    Packet *hold_;
    int count_;
};
 
class UWARPTable
{
public:
    UWARPTable();
    ~UWARPTable();
 
    void addEntry(UWARPEntry *entry);
 
    UWARPEntry *lookup(nsaddr_t addr);
 
    void clear();
 
private:
    map<nsaddr_t, UWARPEntry *> table_;
};
 
#endif /* ARPTABLE_H */