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libaaruformat/include/aaruformat/context.h

134 lines
4.3 KiB
C

/*
* 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_CONTEXT_H
#define LIBAARUFORMAT_CONTEXT_H
#include "lru.h"
#include "structs.h"
#ifndef MD5_DIGEST_LENGTH
#define MD5_DIGEST_LENGTH 16
#endif
#ifndef SHA1_DIGEST_LENGTH
#define SHA1_DIGEST_LENGTH 20
#endif
#ifndef SHA256_DIGEST_LENGTH
#define SHA256_DIGEST_LENGTH 32
#endif
typedef struct Crc64Context {
uint64_t finalSeed;
uint64_t table[256];
uint64_t hashInt;
} Crc64Context;
typedef struct CdEccContext {
bool initedEdc;
uint8_t *eccBTable;
uint8_t *eccFTable;
uint32_t *edcTable;
} CdEccContext;
typedef struct Checksums
{
bool hasMd5;
bool hasSha1;
bool hasSha256;
bool hasSpamSum;
uint8_t md5[MD5_DIGEST_LENGTH];
uint8_t sha1[SHA1_DIGEST_LENGTH];
uint8_t sha256[SHA256_DIGEST_LENGTH];
uint8_t *spamsum;
} Checksums;
typedef struct mediaTagEntry
{
uint8_t *data;
int32_t type;
uint32_t length;
UT_hash_handle hh;
} mediaTagEntry;
typedef struct aaruformatContext
{
uint64_t magic;
uint8_t libraryMajorVersion;
uint8_t libraryMinorVersion;
FILE *imageStream;
AaruHeader header;
uint8_t *sectorPrefix;
uint8_t *sectorPrefixCorrected;
uint8_t *sectorSuffix;
uint8_t *sectorSuffixCorrected;
uint8_t *sectorSubchannel;
uint8_t *mode2Subheaders;
uint8_t shift;
bool inMemoryDdt;
uint64_t *userDataDdt;
size_t mappedMemoryDdtSize;
uint32_t *sectorPrefixDdt;
uint32_t *sectorSuffixDdt;
GeometryBlockHeader geometryBlock;
MetadataBlockHeader metadataBlockHeader;
uint8_t *metadataBlock;
TracksHeader tracksHeader;
TrackEntry *trackEntries;
CicmMetadataBlock cicmBlockHeader;
uint8_t *cicmBlock;
DumpHardwareHeader dumpHardwareHeader;
struct DumpHardwareEntriesWithData *dumpHardwareEntriesWithData;
struct ImageInfo imageInfo;
CdEccContext *eccCdContext;
uint8_t numberOfDataTracks;
TrackEntry *dataTracks;
bool *readableSectorTags;
struct CacheHeader blockHeaderCache;
struct CacheHeader blockCache;
struct Checksums checksums;
struct mediaTagEntry *mediaTags;
} aaruformatContext;
typedef struct DumpHardwareEntriesWithData
{
DumpHardwareEntry entry;
struct DumpExtent *extents;
uint8_t *manufacturer;
uint8_t *model;
uint8_t *revision;
uint8_t *firmware;
uint8_t *serial;
uint8_t *softwareName;
uint8_t *softwareVersion;
uint8_t *softwareOperatingSystem;
} DumpHardwareEntriesWithData;
#pragma pack(push, 1)
typedef struct DumpExtent
{
uint64_t start;
uint64_t end;
} DumpExtent;
#pragma pack(pop)
#endif // LIBAARUFORMAT_CONTEXT_H