hdr-uwal.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
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//
 
#ifndef HDR_UWAL_H
#define HDR_UWAL_H
 
#include <packet.h>
 
#define HDR_UWAL(p) (hdr_uwal::access(p))
#define MAX_BIN_PKT_ARRAY_LENGTH 2240
#define MAX_DUMMY_STRING_LENGTH 2240
 
extern packet_t PT_UWAL;
 
typedef struct hdr_uwal {
 
    // This members are always needed by NS
    static int offset_;
    inline static int &
    offset()
    {
        return offset_;
    }
    inline static struct hdr_uwal *
    access(const Packet *p)
    {
        return (struct hdr_uwal *) p->access(offset_);
    }
 
    // Custom header fields
    // Fields that can be encoded and sent over the channel
    uint8_t srcID_; 
    unsigned int pktID_; 
    uint16_t framePayloadOffset_; 
    uint8_t Mbit_; 
    char dummyStr_[MAX_DUMMY_STRING_LENGTH]; 
    // Fields to handle only locally (actually, this is the information to be
    // sent over and retrieved from the channel ad modem payload...)
    char binPkt_[MAX_BIN_PKT_ARRAY_LENGTH]; 
    uint32_t binPktLength_; 
    uint32_t binHdrLength_; 
    inline uint8_t &
    srcID()
    {
        return srcID_;
    }
 
    inline unsigned int &
    pktID()
    {
        return pktID_;
    }
 
    inline uint16_t &
    framePayloadOffset()
    {
        return framePayloadOffset_;
    }
 
    inline uint8_t &
    Mbit()
    {
        return Mbit_;
    }
 
    inline char *
    dummyStr()
    {
        return dummyStr_;
    }
 
    inline char *
    binPkt()
    {
        return binPkt_;
    }
 
    inline uint32_t &
    binPktLength()
    {
        return binPktLength_;
    }
 
    inline uint32_t &
    binHdrLength()
    {
        return binHdrLength_;
    }
 
} hdr_uwal;
 
#endif // HDR_UWAL_H