dissect.esedb.c_esedb
¶
Module Contents¶
Functions¶
Decode a bit into a boolean. |
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Decode text with the appropriate encoding. |
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Decode a GUID. |
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Attributes¶
- dissect.esedb.c_esedb.esedb_def = Multiline-String¶
Show Value
""" #define MAX_COMPUTERNAME_LENGTH 15 typedef int64 DBTIME; typedef ULONG OBJID; typedef ULONG PGNO; typedef ULONG JET_ENGINEFORMATVERSION; typedef int64 XECHECKSUM; enum CODEPAGE { UNICODE = 1200, WESTERN = 1252, ASCII = 20127 }; enum COMPRESSION_SCHEME { COMPRESS_NONE = 0x0, COMPRESS_7BITASCII = 0x1, COMPRESS_7BITUNICODE = 0x2, COMPRESS_XPRESS = 0x3, COMPRESS_SCRUB = 0x4, COMPRESS_XPRESS9 = 0x5, COMPRESS_XPRESS10 = 0x6, }; enum JET_coltyp { Nil = 0, Bit = 1, UnsignedByte = 2, Short = 3, Long = 4, Currency = 5, IEEESingle = 6, IEEEDouble = 7, DateTime = 8, Binary = 9, Text = 10, LongBinary = 11, LongText = 12, SLV = 13, UnsignedLong = 14, LongLong = 15, GUID = 16, UnsignedShort = 17, Max = 18, }; enum SYSOBJ { Nil = 0, Table = 1, Column = 2, Index = 3, LongValue = 4, Callback = 5, }; struct LOGTIME { BYTE bSeconds; // 0 - 60 BYTE bMinutes; // 0 - 60 BYTE bHours; // 0 - 24 BYTE bDay; // 1 - 31 BYTE bMonth; // 0 - 11 BYTE bYear; // current year - 1900 BYTE fTimeIsUTC:1; BYTE bMillisecondsLow:7; BYTE fReserved:1; // fOSSnapshot BYTE bMillisecondsHigh:3; BYTE fUnused:4; }; struct LGPOS { USHORT ib; // must be the last so that lgpos can USHORT isec; // index of disksec starting logsec LONG lGeneration; // generation of logsec }; struct SIGNATURE { ULONG ulRandom; // a random number LOGTIME logtimeCreate; // time db created, in logtime format CHAR szComputerName[MAX_COMPUTERNAME_LENGTH + 1]; // where db is created }; enum BKINFOTYPE : DWORD { backupNormal = 0x0, // normal should be 0 for backward compatibility backupOSSnapshot, backupSnapshot, backupSurrogate, // should not be persisted in header, but persisted and used by log. }; struct BKINFO { LGPOS lgposMark; // id for this backup LOGTIME logtimeMark; // timestamp of when le_lgposMark was logged ULONG genLow; // backup set's min lgen ULONG genHigh; // backup set's max lgen }; struct DBFILEHDR { ULONG ulChecksum; // checksum of the 4k page ULONG ulMagic; // Magic number ULONG ulVersion; // version of DAE the db created (see ulDAEVersion) LONG attrib; // attributes of the db // 16 bytes DBTIME dbtimeDirtied; // DBTime of this database // 24 bytes SIGNATURE signDb; // (28 bytes) signature of the db (incl. creation time) // 52 bytes ULONG dbstate; // consistent/inconsistent state // 56 bytes LGPOS lgposConsistent; // null if in inconsistent state LOGTIME logtimeConsistent; // null if in inconsistent state // 72 bytes LOGTIME logtimeAttach; // Last attach time LGPOS lgposAttach; // 88 bytes LOGTIME logtimeDetach; // Last detach time LGPOS lgposDetach; // 104 bytes ULONG dbid; // current db attachment // 108 bytes SIGNATURE signLog; // log signature // 136 bytes BKINFO bkinfoFullPrev; // Last successful full backup // 160 bytes BKINFO bkinfoIncPrev; // Last successful Incremental backup // 184 bytes // Reset when bkinfoFullPrev is set BKINFO bkinfoFullCur; // current backup. Succeed if a // 208 bytes // corresponding pat file generated union { ULONG m_ulDbFlags; BYTE m_rgbDbFlags[4]; }; OBJID objidLast; // Object id used so far. // NT version information. This is needed to decide if an index need // be recreated due to sort table changes. DWORD dwMajorVersion; // OS version info DWORD dwMinorVersion; // 224 bytes DWORD dwBuildNumber; LONG lSPNumber; // use 31 bit only ULONG ulDaeUpdateMajor; // used to track incremental database format updates that // are backward-compatible (see ulDAEUpdateMajorMax) ULONG cbPageSize; // database page size (0 = 4k pages) // 240 bytes ULONG ulRepairCount; // number of times ErrREPAIRAttachForRepair has been called on this database LOGTIME logtimeRepair; // the date of the last time that repair was run // 252 bytes BYTE rgbReservedSignSLV[ 28 ]; // signSLV signature of associated SLV file (obsolete) // 280 bytes DBTIME dbtimeLastScrub; // last dbtime the database was zeroed out // 288 bytes LOGTIME logtimeScrub; // the date of the last time that the database was zeroed out // 296 bytes LONG lGenMinRequired; // the minimum log generation required for replaying the logs. Typically the checkpoint generation // 300 bytes LONG lGenMaxRequired; // the maximum log generation required for replaying the logs. This is known as the waypoint in BF. // 304 bytes LONG cpgUpgrade55Format; // LONG cpgUpgradeFreePages; // LONG cpgUpgradeSpaceMapPages; // // 316 bytes BKINFO bkinfoSnapshotCur; // Current snapshot. // 340 bytes ULONG ulCreateVersion; // version of DAE that created db (debugging only) ULONG ulCreateUpdate; // 348 bytes LOGTIME logtimeGenMaxCreate; // creation time of the genMax log file // 356 bytes BKINFOTYPE bkinfoTypeFullPrev; // Type of Last successful full backup BKINFOTYPE bkinfoTypeIncPrev; // Type of Last successful Incremental backup // 364 bytes ULONG ulRepairCountOld; // number of times ErrREPAIRAttachForRepair has been called on this database before the last defrag ULONG ulECCFixSuccess; // number of times a one bit error was fixed and resulted in a good page LOGTIME logtimeECCFixSuccess; // the date of the last time that a one bit error was fixed and resulted in a good page ULONG ulECCFixSuccessOld; // number of times a one bit error was fixed and resulted in a good page before last repair ULONG ulECCFixFail; // number of times a one bit error was fixed and resulted in a bad page LOGTIME logtimeECCFixFail; // the date of the last time that a one bit error was fixed and resulted in a bad page ULONG ulECCFixFailOld; // number of times a one bit error was fixed and resulted in a bad page before last repair ULONG ulBadChecksum; // number of times a non-correctable ECC/checksum error was found LOGTIME logtimeBadChecksum; // the date of the last time that a non-correctable ECC/checksum error was found ULONG ulBadChecksumOld; // number of times a non-correctable ECC/checksum error was found before last repair // 416 bytes LONG lGenMaxCommitted; // the last log generation to take active log records for this database. Not // ensuring replay through this log generation will lose the D in ACID. // 420 bytes BKINFO bkinfoCopyPrev; // Last successful Copy backup BKINFO bkinfoDiffPrev; // Last successful Differential backup, reset when bkinfoFullPrev is set // 468 bytes BKINFOTYPE bkinfoTypeCopyPrev; // Type of Last successful Incremental backup BKINFOTYPE bkinfoTypeDiffPrev; // Type of Last successful Differential backup // 476 bytes ULONG ulIncrementalReseedCount; // number of times incremental reseed has been initiated on this database LOGTIME logtimeIncrementalReseed; // the date of the last time that incremental reseed was initiated on this database ULONG ulIncrementalReseedCountOld; // number of times incremental reseed was initiated on this database before the last defrag ULONG ulPagePatchCount; // number of pages patched in the database as a part of incremental reseed LOGTIME logtimePagePatch; // the date of the last time that a page was patched as a part of incremental reseed ULONG ulPagePatchCountOld; // number of pages patched in the database as a part of incremental reseed before the last defrag // 508 bytes QWORD qwSortVersion; // DEPRECATED: In old versions had "default" (?English?) LCID version, in new versions has 0xFFFFFFFFFFFF. // 516 bytes // checksum during recovery state LOGTIME logtimeDbscanPrev; // last checksum finish time (UTC - 1900y) LOGTIME logtimeDbscanStart; // start time (UTC - 1900y) PGNO pgnoDbscanHighestContinuous; // current pgno // 536 bytes LONG lGenRecovering; // the current log generation that we are doing recovery::redo for. // 540 bytes ULONG ulExtendCount; LOGTIME logtimeLastExtend; ULONG ulShrinkCount; LOGTIME logtimeLastShrink; // 564 bytes LOGTIME logtimeLastReAttach; LGPOS lgposLastReAttach; // 580 bytes ULONG ulTrimCount; // 584 bytes SIGNATURE signDbHdrFlush; // random signature generated at the time of the last DB header flush SIGNATURE signFlushMapHdrFlush; // random signature generated at the time of the last FM header flush // 640 bytes LONG lGenMinConsistent; // the minimum log generation required to bring the database to a clean state // it might be different from lGenMinRequired, which also encompasses flush map consistency // 644 bytes ULONG ulDaeUpdateMinor; // used to track incremental database format updates that // are forwards-compatible (see ulDAEUpdateMinorMax) JET_ENGINEFORMATVERSION efvMaxBinAttachDiagnostic; // Max version of engine binary that has attached this database. // NOTE: This is NOT necessarily the format the DB creates/should maintain if JET_paramEnableFormatVersion is set. // NOTE: ALSO this is NOT propagated via redo, intentionally to avoid dependency on this. Use le_ulDaeUpdateMinor instead. // 652 bytes PGNO pgnoDbscanHighest; // highest pgno - used to avoid re-scanning pages // 656 bytes LGPOS lgposLastResize; // lgpos of the last database resize committed to the database. // This is unset on older builds and it requires JET_efvLgposLastResize to start being populated. // A database attachment sets this to le_lgposAttach, even though there isn't a real resize, so it can be // be viewed as "resize checkpoint". // A database extension or shrinkage updates this to the LGPOS of the operation. // A clean databse detachment sets this to le_lgposConsistent. // Incremental reseed may set this back if the first divergent log is lower than the current le_lgposLastResize. // 664 bytes BYTE rgbReserved[3]; // keeping the le_filetype in the same // place as log file header and checkpoint // file header // Remember: when updating logfile, checkpoint or // flush map file headers, please check here // 667 bytes // WARNING: MUST be placed at this offset for // uniformity with db/log headers ULONG filetype; // JET_filetypeDatabase or JET_filetypeStreamingFile // 671 bytes BYTE rgbReserved2[1]; // For alignment // 672 bytes LOGTIME logtimeGenMaxRequired; // 680 bytes LONG lGenPreRedoMinConsistent; // the minimum log generation required to bring the database to a clean state (value overriden during the start of redo, 0 if not overriden). LONG lGenPreRedoMinRequired; // the minimum log generation required for replaying the logs (value overriden during the start of redo, 0 if not overriden). // 688 bytes SIGNATURE signRBSHdrFlush; // random signature generated at the time of the last RBS header flush // 716 bytes ULONG ulRevertCount; // number of times revert has been initiated on this database using the revert snapshots. LOGTIME logtimeRevertFrom; // the date of the last time that revert was initiated on this database using the revert snapshots. LOGTIME logtimeRevertTo; // the date of the last time we were reverting this database to. ULONG ulRevertPageCount; // number of pages reverted on the database by the recent revert operation. LGPOS lgposCommitBeforeRevert; // lgpos of the last commit on the database before a revert was done and requires JET_efvApplyRevertSnapshot to start being populated. // This will be set only after a revert is completed and will be used to ignore JET_errDbTimeTooOld on passive copies. // This is because as part of revert any new page reverts will cause the page to be zeroed out and thereby might be behind the active's dbtime for the page. }; flag PAGE_FLAG : uint32 { // where we are in the BTree Root = 0x00000001, // fPageRoot Leaf = 0x00000002, // fPageLeaf ParentOfLeaf = 0x00000004, // fPageParentOfLeaf // special flags Empty = 0x00000008, // fPageEmpty Repair = 0x00000010, // fPageRepair // what type of tree we are in Primary = 0x00000000, // fPagePrimary SpaceTree = 0x00000020, // fPageSpaceTree Index = 0x00000040, // fPageIndex LongValue = 0x00000080, // fPageLongValue // type of BTree key validation NonUniqueKeys = 0x00000400, // fPageNonUniqueKeys // upgrade info NewRecordFormat = 0x00000800, // fPageNewRecordFormat NewChecksumFormat = 0x00002000, // fPageNewChecksumFormat Scrubbed = 0x00004000, // fPageScrubbed }; struct PGHDR { XECHECKSUM checksum; DBTIME dbtimeDirtied; PGNO pgnoPrev; PGNO pgnoNext; OBJID objidFDP; USHORT cbFree; USHORT cbUncommittedFree; USHORT ibMicFree; USHORT itagMicFree; PAGE_FLAG fFlags; }; struct PGHDR2 { // PGHDR pghdr; XECHECKSUM rgChecksum[3]; PGNO pgno; CHAR rgbReserved[12]; }; flag TAG_FLAG : uint16 { Version = 0x01, // fNDVersion Deleted = 0x02, // fNDDeleted Compressed = 0x04, // fNDCompressed }; struct TAG { USHORT cb_; // size USHORT ib_; // offset }; typedef WORD RECOFFSET; struct RECHDR { BYTE fidFixedLastInRec; BYTE fidVarLastInRec; RECOFFSET ibEndOfFixedData; }; flag TAGFLD_HEADER : uint8 { Invalid = 0x00, // Not a real flag LongValue = 0x01, // fLongValue, is the column type JET_coltypLongText or JET_coltypLongBinary Compressed = 0x02, // fCompressed Separated = 0x04, // fSeparated, is the data stored in a long value page MultiValues = 0x08, // fMultiValues TwoValues = 0x10, // fTwoValues Null = 0x20, // fNull Encrypted = 0x40, // fEncrypted }; flag JET_bitIndex : uint32 { Unique = 0x00000001, Primary = 0x00000002, DisallowNull = 0x00000004, IgnoreNull = 0x00000008, Clustered40 = 0x00000010, // for backward compatibility IgnoreAnyNull = 0x00000020, IgnoreFirstNull = 0x00000040, LazyFlush = 0x00000080, Empty = 0x00000100, // don't attempt to build index, because all entries would evaluate to NULL (MUST also specify JET_bitIgnoreAnyNull) Unversioned = 0x00000200, SortNullsHigh = 0x00000400, // NULL sorts after data for all columns in the index Unicode = 0x00000800, Tuples = 0x00001000, // index on substring tuples (text columns only) TupleLimits = 0x00002000, // cbVarSegMac field of JET_INDEXCREATE actually points to a JET_TUPLELIMITS struct to allow custom tuple index limits (implies JET_bitIndexTuples) CrossProduct = 0x00004000, // index over multiple multi-valued columns has full cross product KeyMost = 0x00008000, // custom index key size set instead of default of 255 bytes DisallowTruncation = 0x00010000, // fail update rather than truncate index keys NestedTable = 0x00020000, // index over multiple multi-valued columns but only with values of same itagSequence DotNetGuid = 0x00040000, // index over GUID column according to .Net GUID sort order ImmutableStructure = 0x00080000, // Do not write to the input structures during a JetCreateIndexN call. }; """
- dissect.esedb.c_esedb.c_esedb¶
- dissect.esedb.c_esedb.ulDAEMagic = 2309737967¶
- dissect.esedb.c_esedb.pgnoFDPMSO = 4¶
- dissect.esedb.c_esedb.pgnoFDPMSO_NameIndex = 7¶
- dissect.esedb.c_esedb.pgnoFDPMSO_RootObjectIndex = 10¶
- dissect.esedb.c_esedb.pgnoFDPMSOShadow = 24¶
- dissect.esedb.c_esedb.JET_coltyp¶
- dissect.esedb.c_esedb.JET_bitIndex¶
- dissect.esedb.c_esedb.SYSOBJ¶
- dissect.esedb.c_esedb.PAGE_FLAG¶
- dissect.esedb.c_esedb.TAG_FLAG¶
- dissect.esedb.c_esedb.TAGFLD_HEADER¶
- dissect.esedb.c_esedb.CODEPAGE¶
- dissect.esedb.c_esedb.COMPRESSION_SCHEME¶
- dissect.esedb.c_esedb.CODEPAGE_MAP¶
- dissect.esedb.c_esedb.RecordValue¶
- dissect.esedb.c_esedb.decode_bit(buf: bytes) bool ¶
Decode a bit into a boolean.
- Parameters:
buf – The buffer to decode from.
- dissect.esedb.c_esedb.decode_text(buf: bytes, encoding: CODEPAGE) str ¶
Decode text with the appropriate encoding.
- Parameters:
buf – The buffer to decode from.
- dissect.esedb.c_esedb.decode_guid(buf: bytes) str ¶
Decode a GUID.
- Parameters:
buf – The buffer to decode from.
- dissect.esedb.c_esedb.ColumnType¶
- dissect.esedb.c_esedb.COLUMN_TYPES¶
- dissect.esedb.c_esedb.COLUMN_TYPE_MAP¶