392 lines
15 KiB
C
392 lines
15 KiB
C
/*++
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Copyright (c) 1989-2000 Microsoft Corporation
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Module Name:
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UdfData.h
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Abstract:
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This module declares the global data used by the Udfs file system.
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// @@BEGIN_DDKSPLIT
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Author:
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Dan Lovinger [DanLo] 20-May-1996
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Revision History:
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Tom Jolly [TomJolly] 1-March-2000 UDF 2.01 support
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// @@END_DDKSPLIT
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--*/
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#ifndef _UDFDATA_
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#define _UDFDATA_
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//
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// Global data structures
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//
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extern UDF_DATA UdfData;
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extern FAST_IO_DISPATCH UdfFastIoDispatch;
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//
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// Global constants
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//
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//
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// These are the number of times a mounted Vcb will be referenced on behalf
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// of the system. The counts include the following references.
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//
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// 1 reference - shows the volume is mounted
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// 1 reference - 1 for VolumeDasdFcb.
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// 2 references - 1 for RootIndexFcb, 1 for internal stream.
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// 2 references - 1 for MetadataFcb, 1 for internal stream.
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//
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// AND THEN, IF THIS IS CD-UDF
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//
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// 2 references - 1 for the VatFcb, 1 for the internal stream.
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//
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// For user references we add one for the reference in each of the internal
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// Fcbs.
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//
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#define UDFS_BASE_RESIDUAL_REFERENCE (6)
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#define UDFS_BASE_RESIDUAL_USER_REFERENCE (3)
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#define UDFS_CDUDF_RESIDUAL_REFERENCE (2)
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#define UDFS_CDUDF_RESIDUAL_USER_REFERENCE (1)
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//
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// The UDFS signature for thread contexts
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//
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#define UDFS_SIGNATURE 0x53464455
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//
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// Reserved directory strings
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//
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#define SELF_ENTRY 0
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#define PARENT_ENTRY 1
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extern WCHAR UdfUnicodeSelfArray[];
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extern WCHAR UdfUnicodeParentArray[];
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extern LARGE_INTEGER UdfCorruptFileTime;
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extern UNICODE_STRING UdfUnicodeDirectoryNames[];
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//
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// Static Identifier strings
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//
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extern STRING UdfCS0Identifier;
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extern STRING UdfDomainIdentifier;
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extern STRING UdfVirtualPartitionDomainIdentifier;
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extern STRING UdfVatTableIdentifier;
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extern STRING UdfSparablePartitionDomainIdentifier;
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extern STRING UdfSparingTableIdentifier;
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extern STRING UdfNSR02Identifier;
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extern STRING UdfNSR03Identifier;
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//
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// Lookup tables for rudimentary parsing of strings we will
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// discover in on-disk structures
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//
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extern PARSE_KEYVALUE VsdIdentParseTable[];
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extern PARSE_KEYVALUE NsrPartContIdParseTable[];
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//
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// Lookaside lists
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//
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extern NPAGED_LOOKASIDE_LIST UdfFcbNonPagedLookasideList;
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extern NPAGED_LOOKASIDE_LIST UdfIrpContextLookasideList;
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extern PAGED_LOOKASIDE_LIST UdfCcbLookasideList;
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extern PAGED_LOOKASIDE_LIST UdfFcbIndexLookasideList;
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extern PAGED_LOOKASIDE_LIST UdfFcbDataLookasideList;
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extern PAGED_LOOKASIDE_LIST UdfLcbLookasideList;
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//
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// 16bit CRC table
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//
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extern PUSHORT UdfCrcTable;
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//
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// Turn on pseudo-asserts if UDFS_FREE_ASSERTS is defined.
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//
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#if (!DBG && defined( UDFS_FREE_ASSERTS )) || defined( UDFSDBG )
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#undef ASSERT
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#undef ASSERTMSG
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#define ASSERT(exp) \
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((exp) ? TRUE : \
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(DbgPrint( "%s:%d %s\n",__FILE__,__LINE__,#exp ), \
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DbgBreakPoint(), \
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TRUE))
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#define ASSERTMSG(msg,exp) \
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((exp) ? TRUE : \
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(DbgPrint( "%s:%d %s %s\n",__FILE__,__LINE__,msg,#exp ), \
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DbgBreakPoint(), \
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TRUE))
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#endif
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//
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// McDebugging Stuff
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//
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//
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// The following assertion macros ensure that the indicated structure
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// is valid
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//
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// ASSERT_STRUCT( IN PVOID Struct, IN CSHORT NodeType );
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// ASSERT_OPTIONAL_STRUCT( IN PVOID Struct OPTIONAL, IN CSHORT NodeType );
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//
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// ASSERT_VCB( IN PVCB Vcb );
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// ASSERT_OPTIONAL_VCB( IN PVCB Vcb OPTIONAL );
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//
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// ASSERT_FCB( IN PFCB Fcb );
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// ASSERT_OPTIONAL_FCB( IN PFCB Fcb OPTIONAL );
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//
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// ASSERT_LCB( IN PLCB Lcb );
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// ASSERT_OPTIONAL_LCB( IN PLCB Lcb OPTIONAL );
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//
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// ASSERT_PCB( IN PFCB Pcb );
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// ASSERT_OPTIONAL_PCB( IN PPCB Pcb OPTIONAL );
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//
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// ASSERT_FCB_NONPAGED( IN PFCB_NONPAGED FcbNonpaged );
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// ASSERT_OPTIONAL_FCB( IN PFCB_NONPAGED FcbNonpaged OPTIONAL );
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//
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// ASSERT_CCB( IN PSCB Ccb );
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// ASSERT_OPTIONAL_CCB( IN PSCB Ccb OPTIONAL );
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//
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// ASSERT_IRP_CONTEXT( IN PIRP_CONTEXT IrpContext );
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// ASSERT_OPTIONAL_IRP_CONTEXT( IN PIRP_CONTEXT IrpContext OPTIONAL );
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//
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// ASSERT_IRP( IN PIRP Irp );
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// ASSERT_OPTIONAL_IRP( IN PIRP Irp OPTIONAL );
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//
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// ASSERT_FILE_OBJECT( IN PFILE_OBJECT FileObject );
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// ASSERT_OPTIONAL_FILE_OBJECT( IN PFILE_OBJECT FileObject OPTIONAL );
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//
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// The following macros are used to check the current thread owns
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// the indicated resource
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//
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// ASSERT_EXCLUSIVE_RESOURCE( IN PERESOURCE Resource );
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//
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// ASSERT_SHARED_RESOURCE( IN PERESOURCE Resource );
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//
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// ASSERT_RESOURCE_NOT_MINE( IN PERESOURCE Resource );
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//
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// The following macros are used to check whether the current thread
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// owns the resoures in the given structures.
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//
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// ASSERT_EXCLUSIVE_CDDATA
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//
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// ASSERT_EXCLUSIVE_VCB( IN PVCB Vcb );
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//
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// ASSERT_SHARED_VCB( IN PVCB Vcb );
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//
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// ASSERT_EXCLUSIVE_FCB( IN PFCB Fcb );
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//
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// ASSERT_SHARED_FCB( IN PFCB Fcb );
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//
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// ASSERT_EXCLUSIVE_FILE( IN PFCB Fcb );
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//
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// ASSERT_SHARED_FILE( IN PFCB Fcb );
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//
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// ASSERT_LOCKED_VCB( IN PVCB Vcb );
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//
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// ASSERT_NOT_LOCKED_VCB( IN PVCB Vcb );
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//
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// ASSERT_LOCKED_FCB( IN PFCB Fcb );
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//
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// ASSERT_NOT_LOCKED_FCB( IN PFCB Fcb );
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//
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//
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// Turn on the sanity checks if this is DBG or UDF_FREE_ASSERTS
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//
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#if DBG || UDF_FREE_ASSERTS
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#undef UDF_SANITY
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#define UDF_SANITY
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#endif
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#ifdef UDF_SANITY
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extern LONG UdfDebugTraceLevel;
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extern LONG UdfDebugTraceIndent;
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extern BOOLEAN UdfNoisyVerifyDescriptor;
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extern BOOLEAN UdfTestRaisedStatus;
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BOOLEAN
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UdfDebugTrace (
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LONG IndentIncrement,
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ULONG TraceMask,
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PCHAR Format,
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...
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);
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#define DebugTrace(x) UdfDebugTrace x
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#define DebugUnwind(X) { \
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if (AbnormalTermination()) { \
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DebugTrace(( -1, UDFS_DEBUG_LEVEL_UNWIND, #X ", Abnormal termination.\n" )); \
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} \
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}
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#define DebugBreakOnStatus(S) { \
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if (UdfTestRaisedStatus) { \
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if ((S) == STATUS_DISK_CORRUPT_ERROR || \
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(S) == STATUS_FILE_CORRUPT_ERROR || \
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(S) == STATUS_CRC_ERROR) { \
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DbgPrint( "UDFS: Breaking on possible media corruption (S = %08x)\n", (S)); \
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DbgPrint( "UDFS: Contact UDFS.SYS component owner for triage.\n"); \
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DbgPrint( "UDFS: 'eb %p 0' to disable this alert\n",&UdfTestRaisedStatus ); \
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DbgBreakPoint(); \
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} \
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} \
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}
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#define ASSERT_STRUCT(S,T) ASSERT( SafeNodeType( S ) == (T) )
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#define ASSERT_OPTIONAL_STRUCT(S,T) ASSERT( ((S) == NULL) || (SafeNodeType( S ) == (T)) )
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#define ASSERT_VCB(V) ASSERT_STRUCT( (V), UDFS_NTC_VCB )
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#define ASSERT_OPTIONAL_VCB(V) ASSERT_OPTIONAL_STRUCT( (V), UDFS_NTC_VCB )
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#define ASSERT_FCB(F) \
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ASSERT( (SafeNodeType( F ) == UDFS_NTC_FCB_DATA ) || \
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(SafeNodeType( F ) == UDFS_NTC_FCB_INDEX ) )
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#define ASSERT_OPTIONAL_FCB(F) \
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ASSERT( ((F) == NULL) || \
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(SafeNodeType( F ) == UDFS_NTC_FCB_DATA ) || \
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(SafeNodeType( F ) == UDFS_NTC_FCB_INDEX ) )
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#define ASSERT_FCB_DATA(F) ASSERT( (SafeNodeType( F ) == UDFS_NTC_FCB_DATA ) )
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#define ASSERT_OPTIONAL_FCB_DATA(F) \
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ASSERT( ((F) == NULL) || \
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(SafeNodeType( F ) == UDFS_NTC_FCB_DATA ) )
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#define ASSERT_FCB_INDEX(F) ASSERT( (SafeNodeType( F ) == UDFS_NTC_FCB_INDEX ) )
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#define ASSERT_OPTIONAL_FCB_INDEX(F) \
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ASSERT( ((F) == NULL) || \
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(SafeNodeType( F ) == UDFS_NTC_FCB_INDEX ) )
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#define ASSERT_FCB_NONPAGED(FN) ASSERT_STRUCT( (FN), UDFS_NTC_FCB_NONPAGED )
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#define ASSERT_OPTIONAL_FCB_NONPAGED(FN) ASSERT_OPTIONAL_STRUCT( (FN), UDFS_NTC_FCB_NONPAGED )
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#define ASSERT_CCB(C) ASSERT_STRUCT( (C), UDFS_NTC_CCB )
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#define ASSERT_OPTIONAL_CCB(C) ASSERT_OPTIONAL_STRUCT( (C), UDFS_NTC_CCB )
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#define ASSERT_PCB(C) ASSERT_STRUCT( (C), UDFS_NTC_PCB )
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#define ASSERT_OPTIONAL_PCB(C) ASSERT_OPTIONAL_STRUCT( (C), UDFS_NTC_PCB )
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#define ASSERT_LCB(C) ASSERT_STRUCT( (C), UDFS_NTC_LCB )
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#define ASSERT_OPTIONAL_LCB(C) ASSERT_OPTIONAL_STRUCT( (C), UDFS_NTC_LCB )
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#define ASSERT_IRP_CONTEXT(IC) ASSERT_STRUCT( (IC), UDFS_NTC_IRP_CONTEXT )
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#define ASSERT_OPTIONAL_IRP_CONTEXT(IC) ASSERT_OPTIONAL_STRUCT( (IC), UDFS_NTC_IRP_CONTEXT )
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#define ASSERT_IRP_CONTEXT_LITE(IC) ASSERT_STRUCT( (IC), UDFS_NTC_IRP_CONTEXT_LITE )
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#define ASSERT_OPTIONAL_IRP_CONTEXT_LITE(IC) ASSERT_OPTIONAL_STRUCT( (IC), UDFS_NTC_IRP_CONTEXT_LITE )
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#define ASSERT_IRP(I) ASSERT_STRUCT( (I), IO_TYPE_IRP )
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#define ASSERT_OPTIONAL_IRP(I) ASSERT_OPTIONAL_STRUCT( (I), IO_TYPE_IRP )
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#define ASSERT_FILE_OBJECT(FO) ASSERT_STRUCT( (FO), IO_TYPE_FILE )
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#define ASSERT_OPTIONAL_FILE_OBJECT(FO) ASSERT_OPTIONAL_STRUCT( (FO), IO_TYPE_FILE )
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#define ASSERT_EXCLUSIVE_RESOURCE(R) ASSERT( ExIsResourceAcquiredExclusiveLite( R ))
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#define ASSERT_SHARED_RESOURCE(R) ASSERT( ExIsResourceAcquiredSharedLite( R ))
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#define ASSERT_RESOURCE_NOT_MINE(R) ASSERT( !ExIsResourceAcquiredSharedLite( R ))
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#define ASSERT_EXCLUSIVE_UDFDATA ASSERT( ExIsResourceAcquiredExclusiveLite( &UdfData.DataResource ))
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#define ASSERT_EXCLUSIVE_VCB(V) ASSERT( ExIsResourceAcquiredExclusiveLite( &(V)->VcbResource ))
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#define ASSERT_SHARED_VCB(V) ASSERT( ExIsResourceAcquiredSharedLite( &(V)->VcbResource ))
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#define ASSERT_EXCLUSIVE_FCB_OR_VCB(F) ASSERT( ExIsResourceAcquiredExclusiveLite( &(F)->FcbNonpaged->FcbResource ) || \
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ExIsResourceAcquiredExclusiveLite( &(F)->Vcb->VcbResource ))
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#define ASSERT_EXCLUSIVE_FCB(F) ASSERT( ExIsResourceAcquiredExclusiveLite( &(F)->FcbNonpaged->FcbResource ))
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#define ASSERT_SHARED_FCB(F) ASSERT( ExIsResourceAcquiredSharedLite( &(F)->FcbNonpaged->FcbResource ))
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#define ASSERT_EXCLUSIVE_FILE(F) ASSERT( ExIsResourceAcquiredExclusiveLite( (F)->Resource ))
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#define ASSERT_SHARED_FILE(F) ASSERT( ExIsResourceAcquiredSharedLite( (F)->Resource ))
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#define ASSERT_LOCKED_VCB(V) ASSERT( (V)->VcbLockThread == PsGetCurrentThread() )
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#define ASSERT_NOT_LOCKED_VCB(V) ASSERT( (V)->VcbLockThread != PsGetCurrentThread() )
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#define ASSERT_LOCKED_FCB(F) ASSERT( (F)->FcbLockThread == PsGetCurrentThread() )
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#define ASSERT_NOT_LOCKED_FCB(F) ASSERT( (F)->FcbLockThread != PsGetCurrentThread() )
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#define ASSERT_NOT_HELD_VMCB(V) ASSERT( !ExIsResourceAcquiredSharedLite(&(V)->VmcbMappingResource) && \
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!ExIsResourceAcquiredExclusiveLite(&(V)->VmcbMappingResource) )
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#else
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#define DebugTrace(X) TRUE
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#define DebugUnwind(X) { NOTHING; }
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#define DebugBreakOnStatus(S) { NOTHING; }
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#define ASSERT_NOT_HELD_VMCB(V) { NOTHING; }
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#define ASSERT_STRUCT(S,T) { NOTHING; }
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#define ASSERT_OPTIONAL_STRUCT(S,T) { NOTHING; }
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#define ASSERT_VCB(V) { NOTHING; }
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#define ASSERT_OPTIONAL_VCB(V) { NOTHING; }
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#define ASSERT_FCB(F) { NOTHING; }
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#define ASSERT_OPTIONAL_FCB(F) { NOTHING; }
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#define ASSERT_FCB_DATA { NOTHING; }
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#define ASSERT_OPTIONAL_FCB_DATA(F) { NOTHING; }
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#define ASSERT_FCB_INDEX(F) { NOTHING; }
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#define ASSERT_OPTIONAL_FCB_INDEX(F) { NOTHING; }
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#define ASSERT_FCB_NONPAGED(FN) { NOTHING; }
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#define ASSERT_OPTIONAL_FCB_NONPAGED(FN) { NOTHING; }
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#define ASSERT_CCB(C) { NOTHING; }
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#define ASSERT_OPTIONAL_CCB(C) { NOTHING; }
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#define ASSERT_PCB(C) { NOTHING; }
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#define ASSERT_OPTIONAL_PCB(C) { NOTHING; }
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#define ASSERT_LCB(C) { NOTHING; }
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#define ASSERT_OPTIONAL_LCB(C) { NOTHING; }
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#define ASSERT_IRP_CONTEXT(IC) { NOTHING; }
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#define ASSERT_OPTIONAL_IRP_CONTEXT(IC) { NOTHING; }
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#define ASSERT_IRP_CONTEXT_LITE(IC) { NOTHING; }
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#define ASSERT_OPTIONAL_IRP_CONTEXT_LITE(IC) { NOTHING; }
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#define ASSERT_IRP(I) { NOTHING; }
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#define ASSERT_OPTIONAL_IRP(I) { NOTHING; }
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#define ASSERT_FILE_OBJECT(FO) { NOTHING; }
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#define ASSERT_OPTIONAL_FILE_OBJECT(FO) { NOTHING; }
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#define ASSERT_EXCLUSIVE_RESOURCE(R) { NOTHING; }
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#define ASSERT_SHARED_RESOURCE(R) { NOTHING; }
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#define ASSERT_RESOURCE_NOT_MINE(R) { NOTHING; }
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#define ASSERT_EXCLUSIVE_UDFDATA { NOTHING; }
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#define ASSERT_EXCLUSIVE_VCB(V) { NOTHING; }
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#define ASSERT_SHARED_VCB(V) { NOTHING; }
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#define ASSERT_EXCLUSIVE_FCB_OR_VCB(F) { NOTHING; }
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#define ASSERT_EXCLUSIVE_FCB(F) { NOTHING; }
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#define ASSERT_SHARED_FCB(F) { NOTHING; }
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#define ASSERT_EXCLUSIVE_FILE(F) { NOTHING; }
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#define ASSERT_SHARED_FILE(F) { NOTHING; }
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#define ASSERT_LOCKED_VCB(V) { NOTHING; }
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#define ASSERT_NOT_LOCKED_VCB(V) { NOTHING; }
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#define ASSERT_LOCKED_FCB(F) { NOTHING; }
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#define ASSERT_NOT_LOCKED_FCB(F) { NOTHING; }
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#endif
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#endif // _UDFDATA_
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