210 lines
3.5 KiB
C
210 lines
3.5 KiB
C
/*++
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Copyright (c) 1992 Microsoft Corporation
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Module Name:
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fs_rec.h
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Abstract:
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This module contains the main header file for the mini-file system
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recognizer driver.
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Author:
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Darryl E. Havens (darrylh) 22-nov-1993
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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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#include "ntifs.h"
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#include "ntdddisk.h"
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#include "ntddcdrm.h"
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// Define the debug trace levels.
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#define FSREC_DEBUG_LEVEL_FSREC 0x00000001
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#define FSREC_DEBUG_LEVEL_NTFS 0x00000002
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#define FSREC_DEBUG_LEVEL_CDFS 0x00000004
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#define FSREC_DEBUG_LEVEL_UDFS 0x00000008
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#define FSREC_DEBUG_LEVEL_FAT 0x00000010
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#define FSREC_POOL_TAG 'crsF'
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#define SetFlag(Flags,SingleFlag) ( \
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(Flags) |= (SingleFlag) \
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)
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#define ClearFlag(Flags,SingleFlag) ( \
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(Flags) &= ~(SingleFlag) \
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)
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// Define the file system types for the device extension.
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typedef enum _FILE_SYSTEM_TYPE {
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CdfsFileSystem = 1,
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FatFileSystem,
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HpfsFileSystem,
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NtfsFileSystem,
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UdfsFileSystem
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} FILE_SYSTEM_TYPE, *PFILE_SYSTEM_TYPE;
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// Define the device extension for this driver.
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typedef enum _RECOGNIZER_STATE {
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Active,
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Transparent,
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FastUnload
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} RECOGNIZER_STATE, *PRECOGNIZER_STATE;
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typedef struct _DEVICE_EXTENSION {
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PDEVICE_OBJECT CoRecognizer;
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FILE_SYSTEM_TYPE FileSystemType;
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RECOGNIZER_STATE State;
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} DEVICE_EXTENSION, *PDEVICE_EXTENSION;
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// Define the functions provided by this driver.
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NTSTATUS
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DriverEntry(
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IN PDRIVER_OBJECT DriverObject,
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IN PUNICODE_STRING RegistryPath
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);
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NTSTATUS
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FsRecCleanupClose(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp
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);
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NTSTATUS
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FsRecCreate(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp
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);
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NTSTATUS
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FsRecCreateAndRegisterDO(
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IN PDRIVER_OBJECT DriverObject,
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IN PDEVICE_OBJECT HeadRecognizer OPTIONAL,
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OUT PDEVICE_OBJECT *NewRecognizer OPTIONAL,
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IN PWCHAR RecFileSystem,
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IN PWCHAR FileSystemName,
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IN FILE_SYSTEM_TYPE FileSystemType,
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IN DEVICE_TYPE DeviceType
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);
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NTSTATUS
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FsRecFsControl(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp
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);
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VOID
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FsRecUnload(
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IN PDRIVER_OBJECT DriverObject
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);
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NTSTATUS
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FsRecLoadFileSystem (
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IN PDEVICE_OBJECT DeviceObject,
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IN PWCHAR DriverServiceKey
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);
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BOOLEAN
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FsRecGetDeviceSectorSize (
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IN PDEVICE_OBJECT DeviceObject,
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OUT PULONG BytesPerSector
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);
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BOOLEAN
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FsRecGetDeviceSectors (
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IN PDEVICE_OBJECT DeviceObject,
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IN ULONG BytesPerSector,
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OUT PLARGE_INTEGER NumberOfSectors
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);
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BOOLEAN
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FsRecReadBlock(
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IN PDEVICE_OBJECT DeviceObject,
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IN PLARGE_INTEGER ByteOffset,
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IN ULONG MinimumBytes,
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IN ULONG BytesPerSector,
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OUT PVOID *Buffer,
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OUT PBOOLEAN IsDeviceFailure OPTIONAL
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);
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#if DBG
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extern LONG FsRecDebugTraceLevel;
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extern LONG FsRecDebugTraceIndent;
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BOOLEAN
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FsRecDebugTrace (
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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(M) FsRecDebugTrace M
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#else
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#define DebugTrace(M) TRUE
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#endif
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// Define the per-type recognizers.
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NTSTATUS
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CdfsRecFsControl(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp
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);
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NTSTATUS
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UdfsRecFsControl(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp
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);
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NTSTATUS
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FatRecFsControl(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp
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);
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NTSTATUS
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NtfsRecFsControl(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp
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);
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// Define external functions.
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NTSTATUS
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ZwLoadDriver(
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IN PUNICODE_STRING DriverServiceName
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);
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