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164 lines
4.1 KiB
164 lines
4.1 KiB
/*++
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Copyright (c) 1989 Microsoft Corporation
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Module Name:
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RawInit.c
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Abstract:
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This module implements the DRIVER_INITIALIZATION routine for Raw
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Author:
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David Goebel [DavidGoe] 18-Mar-91
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Environment:
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Kernel mode
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Revision History:
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--*/
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#include "RawProcs.h"
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#include <zwapi.h>
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//
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// The global file system device objects
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//
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PDEVICE_OBJECT RawDeviceDiskObject = NULL;
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PDEVICE_OBJECT RawDeviceCdRomObject = NULL;
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PDEVICE_OBJECT RawDeviceTapeObject = NULL;
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NTSTATUS
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RawInitialize(
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IN PDRIVER_OBJECT DriverObject,
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IN PUNICODE_STRING RegistryPath
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);
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#ifdef ALLOC_PRAGMA
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#pragma alloc_text(INIT, RawInitialize)
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#endif
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NTSTATUS
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RawInitialize(
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IN PDRIVER_OBJECT DriverObject,
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IN PUNICODE_STRING RegistryPath
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)
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/*++
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Routine Description:
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This is the initialization routine for the Raw file system
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device driver. This routine creates the device object for the FileSystem
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device and performs all other driver initialization.
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Arguments:
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DriverObject - Pointer to driver object created by the system.
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Return Value:
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NTSTATUS - The function value is the final status from the initialization
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operation.
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--*/
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{
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NTSTATUS Status;
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UNICODE_STRING NameString;
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//
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// First create a device object for the Disk file system queue
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//
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RtlInitUnicodeString( &NameString, L"\\Device\\RawDisk" );
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Status = IoCreateDevice( DriverObject,
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0L,
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&NameString,
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FILE_DEVICE_DISK_FILE_SYSTEM,
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0,
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FALSE,
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&RawDeviceDiskObject );
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if (!NT_SUCCESS( Status )) {
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return Status;
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}
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//
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// Now create one for the CD ROM file system queue
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//
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RtlInitUnicodeString( &NameString, L"\\Device\\RawCdRom" );
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Status = IoCreateDevice( DriverObject,
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0L,
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&NameString,
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FILE_DEVICE_CD_ROM_FILE_SYSTEM,
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0,
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FALSE,
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&RawDeviceCdRomObject );
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if (!NT_SUCCESS( Status )) {
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return Status;
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}
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//
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// And now create one for the Tape file system queue
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//
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RtlInitUnicodeString( &NameString, L"\\Device\\RawTape" );
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Status = IoCreateDevice( DriverObject,
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0L,
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&NameString,
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FILE_DEVICE_TAPE_FILE_SYSTEM,
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0,
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FALSE,
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&RawDeviceTapeObject );
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if (!NT_SUCCESS( Status )) {
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return Status;
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}
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//
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// Raw does direct IO
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//
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RawDeviceDiskObject->Flags |= DO_DIRECT_IO;
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RawDeviceCdRomObject->Flags |= DO_DIRECT_IO;
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RawDeviceTapeObject->Flags |= DO_DIRECT_IO;
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//
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// Initialize the driver object with this driver's entry points. Note
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// that only a limited capability is supported by the raw file system.
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//
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DriverObject->MajorFunction[IRP_MJ_CREATE] =
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DriverObject->MajorFunction[IRP_MJ_CLEANUP] =
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DriverObject->MajorFunction[IRP_MJ_CLOSE] =
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DriverObject->MajorFunction[IRP_MJ_READ] =
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DriverObject->MajorFunction[IRP_MJ_WRITE] =
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DriverObject->MajorFunction[IRP_MJ_QUERY_INFORMATION] =
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DriverObject->MajorFunction[IRP_MJ_SET_INFORMATION] =
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DriverObject->MajorFunction[IRP_MJ_QUERY_VOLUME_INFORMATION] =
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DriverObject->MajorFunction[IRP_MJ_CLEANUP] =
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DriverObject->MajorFunction[IRP_MJ_FILE_SYSTEM_CONTROL] =
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DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] =
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(PDRIVER_DISPATCH)RawDispatch;
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//
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// Finally, register this file system in the system.
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//
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IoRegisterFileSystem( RawDeviceDiskObject );
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IoRegisterFileSystem( RawDeviceCdRomObject );
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IoRegisterFileSystem( RawDeviceTapeObject );
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//
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// And return to our caller
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//
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return( STATUS_SUCCESS );
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}
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