114 lines
2.5 KiB
C
114 lines
2.5 KiB
C
/*++
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Copyright (c) 1992 Microsoft Corporation
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Module Name:
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udfs_rec.h
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Abstract:
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This module contains the mini-file system recognizer for UDFS.
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Author:
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Dan Lovinger (danlo) 13-Feb-1997
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Environment:
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Kernel mode, local to I/O system
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Revision History:
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*/
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// NOTE CAREFULLY: the canonical location for this information is in the UDFS
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// driver source.
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// Aligning this byte offset to a sector boundary by rounding up will
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// yield the starting offset of the Volume Recognition Area (2/8.3)
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#define VRA_BOUNDARY_LOCATION (32767 + 1)
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/*** ISO 13346 Part 2: Volume and Boot Block Recognition
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*
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*
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*/
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/*** vsd_generic - Generic Volume Structure Descriptor (2/9.1)
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*
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*/
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typedef struct VSD_GENERIC {
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UCHAR Type; // Structure Type
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UCHAR Ident[5]; // Standard Identifier
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UCHAR Version; // Standard Version
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UCHAR Data[2041]; // Structure Data
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} VSD_GENERIC, *PVSD_GENERIC;
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// VSD_LENGTH_... - vsd field lengths
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#define VSD_LENGTH_IDENT 5 // Length of regid_Identifier (bytes)
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// VSD_IDENT_... - Values for vsd_generic_Ident
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#define VSD_IDENT_BEA01 "BEA01" // Begin Extended Area
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#define VSD_IDENT_TEA01 "TEA01" // Terminate Extended Area
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#define VSD_IDENT_CDROM "CDROM" // High Sierra Group (pre-ISO 9660)
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#define VSD_IDENT_CD001 "CD001" // ISO 9660
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#define VSD_IDENT_CDW01 "CDW01" // ECMA 168
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#define VSD_IDENT_CDW02 "CDW02" // ISO 13490
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#define VSD_IDENT_NSR01 "NSR01" // ECMA 167
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#define VSD_IDENT_NSR02 "NSR02" // ISO 13346
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#define VSD_IDENT_BOOT2 "BOOT2" // Boot Descriptor
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typedef enum _VSD_IDENT {
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VsdIdentBad = 0,
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VsdIdentBEA01,
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VsdIdentTEA01,
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VsdIdentCDROM,
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VsdIdentCD001,
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VsdIdentCDW01,
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VsdIdentCDW02,
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VsdIdentNSR01,
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VsdIdentNSR02,
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VsdIdentBOOT2
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} VSD_IDENT, *PVSD_IDENT;
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// Following structure is used to build up static data for parse tables
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typedef struct _PARSE_KEYVALUE {
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PCHAR Key;
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ULONG Value;
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} PARSE_KEYVALUE, *PPARSE_KEYVALUE;
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// Define the functions provided by this driver.
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BOOLEAN
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IsUdfsVolume (
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IN PDEVICE_OBJECT DeviceObject,
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IN ULONG SectorSize
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);
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ULONG
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UdfsFindInParseTable (
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IN PPARSE_KEYVALUE ParseTable,
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IN PCHAR Id,
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IN ULONG MaxIdLen
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);
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#define SectorAlignN(SECTORSIZE, L) ( \
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((((ULONG)(L)) + ((SECTORSIZE) - 1)) & ~((SECTORSIZE) - 1)) \
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)
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