mirror of
https://github.com/reactos/reactos.git
synced 2024-11-20 06:15:26 +00:00
142 lines
4.8 KiB
C
142 lines
4.8 KiB
C
/*
|
|
* ReactOS kernel
|
|
* Copyright (C) 2002 ReactOS Team
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*
|
|
* COPYRIGHT: See COPYING in the top level directory
|
|
* PROJECT: ReactOS kernel
|
|
* FILE: drivers/filesystem/ntfs/ntfs.c
|
|
* PURPOSE: NTFS filesystem driver
|
|
* PROGRAMMER: Eric Kohl
|
|
* Pierre Schweitzer
|
|
*/
|
|
|
|
/* INCLUDES *****************************************************************/
|
|
|
|
#include "ntfs.h"
|
|
|
|
#define NDEBUG
|
|
#include <debug.h>
|
|
|
|
/* GLOBALS *****************************************************************/
|
|
|
|
PNTFS_GLOBAL_DATA NtfsGlobalData = NULL;
|
|
|
|
/* FUNCTIONS ****************************************************************/
|
|
|
|
/*
|
|
* FUNCTION: Called by the system to initialize the driver
|
|
* ARGUMENTS:
|
|
* DriverObject = object describing this driver
|
|
* RegistryPath = path to our configuration entries
|
|
* RETURNS: Success or failure
|
|
*/
|
|
NTSTATUS
|
|
NTAPI
|
|
DriverEntry(PDRIVER_OBJECT DriverObject,
|
|
PUNICODE_STRING RegistryPath)
|
|
{
|
|
UNICODE_STRING DeviceName = RTL_CONSTANT_STRING(DEVICE_NAME);
|
|
NTSTATUS Status;
|
|
|
|
TRACE_(NTFS, "DriverEntry(%p, '%wZ')\n", DriverObject, RegistryPath);
|
|
|
|
/* Initialize global data */
|
|
NtfsGlobalData = ExAllocatePoolWithTag(NonPagedPool, sizeof(NTFS_GLOBAL_DATA), 'GRDN');
|
|
if (!NtfsGlobalData)
|
|
{
|
|
Status = STATUS_INSUFFICIENT_RESOURCES;
|
|
goto ErrorEnd;
|
|
}
|
|
|
|
RtlZeroMemory(NtfsGlobalData, sizeof(NTFS_GLOBAL_DATA));
|
|
NtfsGlobalData->Identifier.Type = NTFS_TYPE_GLOBAL_DATA;
|
|
NtfsGlobalData->Identifier.Size = sizeof(NTFS_GLOBAL_DATA);
|
|
|
|
ExInitializeResourceLite(&NtfsGlobalData->Resource);
|
|
|
|
/* Keep trace of Driver Object */
|
|
NtfsGlobalData->DriverObject = DriverObject;
|
|
|
|
/* Initialize IRP functions array */
|
|
NtfsInitializeFunctionPointers(DriverObject);
|
|
|
|
/* Initialize CC functions array */
|
|
NtfsGlobalData->CacheMgrCallbacks.AcquireForLazyWrite = NtfsAcqLazyWrite;
|
|
NtfsGlobalData->CacheMgrCallbacks.ReleaseFromLazyWrite = NtfsRelLazyWrite;
|
|
NtfsGlobalData->CacheMgrCallbacks.AcquireForReadAhead = NtfsAcqReadAhead;
|
|
NtfsGlobalData->CacheMgrCallbacks.ReleaseFromReadAhead = NtfsRelReadAhead;
|
|
|
|
/* Driver can't be unloaded */
|
|
DriverObject->DriverUnload = NULL;
|
|
|
|
Status = IoCreateDevice(DriverObject,
|
|
sizeof(NTFS_GLOBAL_DATA),
|
|
&DeviceName,
|
|
FILE_DEVICE_DISK_FILE_SYSTEM,
|
|
0,
|
|
FALSE,
|
|
&NtfsGlobalData->DeviceObject);
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
WARN_(NTFS, "IoCreateDevice failed with status: %lx\n", Status);
|
|
goto ErrorEnd;
|
|
}
|
|
|
|
NtfsGlobalData->DeviceObject->Flags |= DO_DIRECT_IO;
|
|
|
|
/* Register file system */
|
|
IoRegisterFileSystem(NtfsGlobalData->DeviceObject);
|
|
ObReferenceObject(NtfsGlobalData->DeviceObject);
|
|
|
|
ErrorEnd:
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
if (NtfsGlobalData)
|
|
{
|
|
ExDeleteResourceLite(&NtfsGlobalData->Resource);
|
|
ExFreePoolWithTag(NtfsGlobalData, 'GRDN');
|
|
}
|
|
}
|
|
|
|
return Status;
|
|
}
|
|
|
|
|
|
/*
|
|
* FUNCTION: Called within the driver entry to initialize the IRP functions array
|
|
* ARGUMENTS:
|
|
* DriverObject = object describing this driver
|
|
* RETURNS: Nothing
|
|
*/
|
|
VOID
|
|
NTAPI
|
|
NtfsInitializeFunctionPointers(PDRIVER_OBJECT DriverObject)
|
|
{
|
|
DriverObject->MajorFunction[IRP_MJ_CREATE] = NtfsFsdCreate;
|
|
DriverObject->MajorFunction[IRP_MJ_CLOSE] = NtfsFsdClose;
|
|
DriverObject->MajorFunction[IRP_MJ_READ] = NtfsFsdRead;
|
|
DriverObject->MajorFunction[IRP_MJ_WRITE] = NtfsFsdWrite;
|
|
DriverObject->MajorFunction[IRP_MJ_QUERY_INFORMATION] = NtfsFsdQueryInformation;
|
|
DriverObject->MajorFunction[IRP_MJ_QUERY_VOLUME_INFORMATION] = NtfsFsdDispatch;
|
|
DriverObject->MajorFunction[IRP_MJ_SET_VOLUME_INFORMATION] = NtfsFsdDispatch;
|
|
DriverObject->MajorFunction[IRP_MJ_DIRECTORY_CONTROL] = NtfsFsdDirectoryControl;
|
|
DriverObject->MajorFunction[IRP_MJ_FILE_SYSTEM_CONTROL] = NtfsFsdFileSystemControl;
|
|
|
|
return;
|
|
}
|
|
|
|
/* EOF */
|