uwmll-module.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
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// 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 UWMLL_MODULE_H
#define UWMLL_MODULE_H
 
#include <module.h>
#include <packet.h>
#include <arp.h>
#include <mac.h>
#include <uwip-module.h>
 
#include <vector>
#include <algorithm>
 
#include "marptable.h"
 
#define UWMLL_DROP_REASON_NOT_IN_ARP_LIST "NAL"
 
class UWMllModule : public Module
{
public:
    UWMllModule();
    ~UWMllModule();
 
    virtual int crLayCommand(ClMessage *m);
    virtual int recvAsyncClMsg(ClMessage *m);
    virtual int recvSyncClMsg(ClMessage *m);
 
    virtual int command(int argc, const char *const *argv);
 
    virtual void recv(Packet *p);
 
    virtual void recv(Packet *p, int idSrc);
 
protected:
    virtual void sendDown(Packet *p);
 
    virtual void sendUp(Packet *p);
 
    virtual int getDownAddr(int downId = -1);
 
    virtual int arpResolve(nsaddr_t dst, Packet *p);
 
    inline void
    incrArpPktDrop()
    {
        n_arp_pkt_drop++;
    }
 
    inline int
    getArpPktDropped()
    {
        return n_arp_pkt_drop;
    }
 
    UWARPTable *arptable_;
 
    vector<nsaddr_t> netAddr;
 
    int seqno_;
 
    int n_arp_pkt_drop;
 
    int enable_addr_copy; 
};
 
#endif