header.h

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/*
 * This file is part of the Aaru Data Preservation Suite.
 * Copyright (c) 2019-2025 Natalia Portillo.
 *
 * This library 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 2.1 of the
 * License, or (at your option) any later version.
 *
 * This library 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 library; if not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef LIBAARUFORMAT_HEADER_H
#define LIBAARUFORMAT_HEADER_H

 
#define AARU_HEADER_APP_NAME_LEN 64 
#define GUID_SIZE                16 
 
#pragma pack(push, 1)

typedef struct AaruHeader
{
    uint64_t identifier;                             
    uint8_t  application[AARU_HEADER_APP_NAME_LEN];  
    uint8_t  imageMajorVersion;        
    uint8_t  imageMinorVersion;        
    uint8_t  applicationMajorVersion;  
    uint8_t  applicationMinorVersion;  
    uint32_t mediaType;                
    uint64_t indexOffset;      
    int64_t  creationTime;     
    int64_t  lastWrittenTime;  
} AaruHeader;

typedef struct AaruHeaderV2
{
    uint64_t identifier;                             
    uint8_t  application[AARU_HEADER_APP_NAME_LEN];  
    uint8_t  imageMajorVersion;                      
    uint8_t  imageMinorVersion;                      
    uint8_t  applicationMajorVersion;                
    uint8_t  applicationMinorVersion;                
    uint32_t mediaType;                              
    uint64_t indexOffset;      
    int64_t  creationTime;     
    int64_t  lastWrittenTime;  
    uint8_t  guid[GUID_SIZE];  
    uint8_t  blockAlignmentShift;  
    uint8_t  dataShift;            
    uint8_t  tableShift;           
    uint64_t featureCompatible;    
    uint64_t featureCompatibleRo;  
    uint64_t featureIncompatible;  
} AaruHeaderV2;
 
#pragma pack(pop)
 
#endif  // LIBAARUFORMAT_HEADER_H