dagformat.h

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/*
 *
 * Copyright (c) 2007-2016 The University of Waikato, Hamilton, New Zealand.
 * All rights reserved.
 *
 * This file is part of libtrace.
 *
 * This code has been developed by the University of Waikato WAND
 * research group. For further information please see http://www.wand.net.nz/
 *
 * libtrace is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * libtrace 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 *
 */
#ifndef _DAGFORMAT_H_
#define _DAGFORMAT_H_

#include "libtrace.h"
#include "erftypes.h"

#ifdef WIN32
#pragma pack(push)
#pragma pack(1)
#endif

typedef struct pos_rec {
        uint32_t  hdlc;                 
        uint8_t   pload[1];             
}  PACKED pos_rec_t;

typedef struct eth_rec {
        uint8_t   offset;               
        uint8_t   pad;                  
        uint8_t   dst[6];               
        uint8_t   src[6];               
        uint16_t  etype;                
        uint8_t   pload[1];             
}  PACKED eth_rec_t;

typedef struct atm_rec {
        uint32_t  header;               
        uint8_t   pload[1];             
}  PACKED atm_rec_t;

typedef struct aal5_rec {
        uint32_t  header;               
        uint8_t   pload[1];             
}  PACKED aal5_rec_t;

typedef struct flags {
        LT_BITFIELD8  iface:2;          
        LT_BITFIELD8  vlen:1;           
        LT_BITFIELD8  trunc:1;          
        LT_BITFIELD8  rxerror:1;        
        LT_BITFIELD8  dserror:1;        
        LT_BITFIELD8  pad:2;            
} PACKED flags_t;

typedef struct dag_record {
        uint64_t  ts;           
        uint8_t   type;         
        flags_t   flags;        
        uint16_t  rlen;         
        uint16_t  lctr;         
        uint16_t  wlen;         
        union {
                pos_rec_t       pos;            
                eth_rec_t       eth;
                atm_rec_t       atm;
                aal5_rec_t      aal5;
        } rec;                  
} PACKED dag_record_t;

#ifdef WIN32
#pragma pack(pop)
#endif

#define dag_record_size         16U

#endif /* _DAGFORMAT_H_ */