packer-common.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.
//
 
#ifndef PACKER_COMMON_H
#define PACKER_COMMON_H
 
#include "packer.h"
 
#include <packet.h>
 
#include <iostream>
 
#define NUM_FIELDS 22
 
class packerCOMMON : public packer
{
public:
    packerCOMMON();
 
    ~packerCOMMON();
 
private:
    enum nbits_index {
        PTYPE = 0,
        SIZE,
        UID,
        ERROR,
        TIMESTAMP,
        DIRECTION,
        PREV_HOP,
        NEXT_HOP,
        ADDR_TYPE,
        LAST_HOP,
        TXTIME,
        errbitcnt_,
        fecsize_,
        iface_,
        src_rt_valid,
        ts_arr_,
        aomdv_salvage_count_,
        xmit_failure_,
        xmit_failure_data_,
        xmit_reason_,
        num_forwards_,
        opt_num_forwards_
    };
    void init();
    size_t packMyHdr(Packet *, unsigned char *, size_t);
    size_t unpackMyHdr(unsigned char *, size_t, Packet *);
    void printMyHdrMap();
    void printMyHdrFields(Packet *);
 
    // Common header fields useful for DESERT
    size_t PTYPE_Bits; 
    size_t SIZE_Bits; 
    size_t UID_Bits; 
    size_t ERROR_Bits; 
    size_t TIMESTAMP_Bits; 
    size_t DIRECTION_Bits; 
    size_t
            PREV_HOP_Bits; 
    size_t
            NEXT_HOP_Bits; 
    size_t ADDR_TYPE_Bits; 
    size_t
            LAST_HOP_Bits; 
    size_t TXTIME_Bits; 
    // Other common header fields (maybe useful for future usage)
    size_t errbitcnt_Bits; 
    size_t fecsize_Bits; 
    size_t iface_Bits; 
    size_t src_rt_valid_Bits; 
    size_t ts_arr_Bits; 
    size_t aomdv_salvage_count_Bits; 
    size_t xmit_failure_Bits; 
    size_t xmit_failure_data_Bits; 
    size_t xmit_reason_Bits; 
    size_t num_forwards_Bits; 
    size_t opt_num_forwards_Bits; 
};
 
#endif