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273 lines
8.8 KiB
C
273 lines
8.8 KiB
C
/*++
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Copyright (c) 1989-2000 Microsoft Corporation
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Module Name:
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CdData.c
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Abstract:
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This module declares the global data used by the Cdfs file system.
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--*/
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#ifndef _CDDATA_
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#define _CDDATA_
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//
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// Global data structures
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//
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extern CD_DATA CdData;
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extern FAST_IO_DISPATCH CdFastIoDispatch;
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//
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// Global constants
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//
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//
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// This is 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 PathTableFcb, 1 for 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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// Fcb's.
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//
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#define CDFS_RESIDUAL_REFERENCE (6)
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#define CDFS_RESIDUAL_USER_REFERENCE (3)
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//
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// Reserved directory strings
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//
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extern WCHAR CdUnicodeSelfArray[];
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extern WCHAR CdUnicodeParentArray[];
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extern UNICODE_STRING CdUnicodeDirectoryNames[];
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//
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// Volume descriptor identifier strings.
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//
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extern CHAR CdHsgId[];
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extern CHAR CdIsoId[];
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extern CHAR CdXaId[];
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//
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// Volume label for audio disks.
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//
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extern WCHAR CdAudioLabel[];
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extern USHORT CdAudioLabelLength;
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//
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// Pseudo file names for audio disks.
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//
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extern CHAR CdAudioFileName[];
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extern UCHAR CdAudioFileNameLength;
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extern ULONG CdAudioDirentSize;
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extern ULONG CdAudioDirentsPerSector;
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extern ULONG CdAudioSystemUseOffset;
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#define AUDIO_NAME_ONES_OFFSET (6)
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#define AUDIO_NAME_TENS_OFFSET (5)
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//
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// Escape sequences for mounting Unicode volumes.
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//
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extern PCHAR CdJolietEscape[];
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//
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// Hardcoded header for RIFF files.
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//
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extern LONG CdXAFileHeader[];
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extern LONG CdAudioPlayHeader[];
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extern LONG CdXAAudioPhileHeader[];
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#ifdef CDFS_TELEMETRY_DATA
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//
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// Globals for Telemetry data.
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//
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extern CDFS_TELEMETRY_DATA_CONTEXT CdTelemetryData;
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#endif // CDFS_TELEMETRY_DATA
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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_opt_ PVOID Struct, _In_ CSHORT NodeType );
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//
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// ASSERT_VCB( _In_ PVCB Vcb );
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// ASSERT_OPTIONAL_VCB( _In_opt_ PVCB Vcb );
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//
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// ASSERT_FCB( _In_ PFCB Fcb );
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// ASSERT_OPTIONAL_FCB( _In_opt_ PFCB Fcb );
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//
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// ASSERT_FCB_NONPAGED( _In_ PFCB_NONPAGED FcbNonpaged );
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// ASSERT_OPTIONAL_FCB( _In_opt_ PFCB_NONPAGED FcbNonpaged );
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//
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// ASSERT_CCB( _In_ PSCB Ccb );
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// ASSERT_OPTIONAL_CCB( _In_opt_ PSCB Ccb );
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//
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// ASSERT_IRP_CONTEXT( _In_ PIRP_CONTEXT IrpContext );
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// ASSERT_OPTIONAL_IRP_CONTEXT( _In_opt_ PIRP_CONTEXT IrpContext );
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//
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// ASSERT_IRP( _In_ PIRP Irp );
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// ASSERT_OPTIONAL_IRP( _In_opt_ PIRP Irp );
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//
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// ASSERT_FILE_OBJECT( _In_ PFILE_OBJECT FileObject );
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// ASSERT_OPTIONAL_FILE_OBJECT( _In_opt_ PFILE_OBJECT FileObject );
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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 CD_FREE_ASSERTS
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//
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#if DBG
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#undef CD_SANITY
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//#define CD_SANITY
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#endif
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#ifdef CD_SANITY
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#define ASSERT_STRUCT(S,T) NT_ASSERT( SafeNodeType( S ) == (T) )
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#define ASSERT_OPTIONAL_STRUCT(S,T) NT_ASSERT( ((S) == NULL) || (SafeNodeType( S ) == (T)) )
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#define ASSERT_VCB(V) ASSERT_STRUCT( (V), CDFS_NTC_VCB )
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#define ASSERT_OPTIONAL_VCB(V) ASSERT_OPTIONAL_STRUCT( (V), CDFS_NTC_VCB )
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#define ASSERT_FCB(F) \
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NT_ASSERT( (SafeNodeType( F ) == CDFS_NTC_FCB_DATA ) || \
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(SafeNodeType( F ) == CDFS_NTC_FCB_INDEX ) || \
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(SafeNodeType( F ) == CDFS_NTC_FCB_PATH_TABLE ) )
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#define ASSERT_OPTIONAL_FCB(F) \
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NT_ASSERT( ((F) == NULL) || \
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(SafeNodeType( F ) == CDFS_NTC_FCB_DATA ) || \
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(SafeNodeType( F ) == CDFS_NTC_FCB_INDEX ) || \
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(SafeNodeType( F ) == CDFS_NTC_FCB_PATH_TABLE ) )
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#define ASSERT_FCB_NONPAGED(FN) ASSERT_STRUCT( (FN), CDFS_NTC_FCB_NONPAGED )
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#define ASSERT_OPTIONAL_FCB_NONPAGED(FN) ASSERT_OPTIONAL_STRUCT( (FN), CDFS_NTC_FCB_NONPAGED )
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#define ASSERT_CCB(C) ASSERT_STRUCT( (C), CDFS_NTC_CCB )
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#define ASSERT_OPTIONAL_CCB(C) ASSERT_OPTIONAL_STRUCT( (C), CDFS_NTC_CCB )
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#define ASSERT_IRP_CONTEXT(IC) ASSERT_STRUCT( (IC), CDFS_NTC_IRP_CONTEXT )
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#define ASSERT_OPTIONAL_IRP_CONTEXT(IC) ASSERT_OPTIONAL_STRUCT( (IC), CDFS_NTC_IRP_CONTEXT )
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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) NT_ASSERT( ExIsResourceAcquiredExclusiveLite( R ))
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#define ASSERT_SHARED_RESOURCE(R) NT_ASSERT( ExIsResourceAcquiredSharedLite( R ))
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#define ASSERT_RESOURCE_NOT_MINE(R) NT_ASSERT( !ExIsResourceAcquiredSharedLite( R ))
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#define ASSERT_EXCLUSIVE_CDDATA NT_ASSERT( ExIsResourceAcquiredExclusiveLite( &CdData.DataResource ))
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#define ASSERT_EXCLUSIVE_VCB(V) NT_ASSERT( ExIsResourceAcquiredExclusiveLite( &(V)->VcbResource ))
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#define ASSERT_SHARED_VCB(V) NT_ASSERT( ExIsResourceAcquiredSharedLite( &(V)->VcbResource ))
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#define ASSERT_EXCLUSIVE_FCB(F) NT_ASSERT( ExIsResourceAcquiredExclusiveLite( &(F)->FcbNonpaged->FcbResource ))
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#define ASSERT_SHARED_FCB(F) NT_ASSERT( ExIsResourceAcquiredSharedLite( &(F)->FcbNonpaged->FcbResource ))
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#define ASSERT_EXCLUSIVE_FILE(F) NT_ASSERT( ExIsResourceAcquiredExclusiveLite( (F)->Resource ))
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#define ASSERT_SHARED_FILE(F) NT_ASSERT( ExIsResourceAcquiredSharedLite( (F)->Resource ))
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#define ASSERT_LOCKED_VCB(V) NT_ASSERT( (V)->VcbLockThread == PsGetCurrentThread() )
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#define ASSERT_NOT_LOCKED_VCB(V) NT_ASSERT( (V)->VcbLockThread != PsGetCurrentThread() )
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#define ASSERT_LOCKED_FCB(F) NT_ASSERT( !FlagOn( (F)->FcbState, FCB_STATE_IN_FCB_TABLE) || ((F)->FcbLockThread == PsGetCurrentThread()))
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#define ASSERT_NOT_LOCKED_FCB(F) NT_ASSERT( (F)->FcbLockThread != PsGetCurrentThread() )
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#else
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#define DebugBreakOnStatus(S) { 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_FCB_NONPAGED(FN) { NOTHING; }
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#define ASSERT_OPTIONAL_FCB(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_IRP_CONTEXT(IC) { NOTHING; }
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#define ASSERT_OPTIONAL_IRP_CONTEXT(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_CDDATA { 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(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 // _CDDATA_
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