mirror of
https://github.com/reactos/reactos.git
synced 2024-11-09 08:08:38 +00:00
132 lines
5.1 KiB
C
132 lines
5.1 KiB
C
/*
|
|
* PROJECT: VFAT Filesystem
|
|
* LICENSE: GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
|
|
* PURPOSE: Driver entry interface
|
|
* COPYRIGHT: Copyright 1998 Jason Filby <jasonfilby@yahoo.com>
|
|
* Copyright 2010-2018 Pierre Schweitzer <pierre@reactos.org>
|
|
*/
|
|
|
|
/* INCLUDES *****************************************************************/
|
|
|
|
#include "vfat.h"
|
|
|
|
#define NDEBUG
|
|
#include <debug.h>
|
|
|
|
/* GLOBALS *****************************************************************/
|
|
|
|
PVFAT_GLOBAL_DATA VfatGlobalData;
|
|
|
|
/* 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
|
|
*/
|
|
CODE_SEG("INIT")
|
|
NTSTATUS
|
|
NTAPI
|
|
DriverEntry(
|
|
IN PDRIVER_OBJECT DriverObject,
|
|
IN PUNICODE_STRING RegistryPath)
|
|
{
|
|
PDEVICE_OBJECT DeviceObject;
|
|
UNICODE_STRING DeviceName = RTL_CONSTANT_STRING(L"\\FatX");
|
|
NTSTATUS Status;
|
|
|
|
UNREFERENCED_PARAMETER(RegistryPath);
|
|
|
|
Status = IoCreateDevice(DriverObject,
|
|
sizeof(VFAT_GLOBAL_DATA),
|
|
&DeviceName,
|
|
FILE_DEVICE_DISK_FILE_SYSTEM,
|
|
0,
|
|
FALSE,
|
|
&DeviceObject);
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
return Status;
|
|
}
|
|
|
|
VfatGlobalData = DeviceObject->DeviceExtension;
|
|
RtlZeroMemory (VfatGlobalData, sizeof(VFAT_GLOBAL_DATA));
|
|
VfatGlobalData->DriverObject = DriverObject;
|
|
VfatGlobalData->DeviceObject = DeviceObject;
|
|
VfatGlobalData->NumberProcessors = KeNumberProcessors;
|
|
/* Enable this to enter the debugger when file system corruption
|
|
* has been detected:
|
|
VfatGlobalData->Flags = VFAT_BREAK_ON_CORRUPTION; */
|
|
|
|
/* Delayed close support */
|
|
ExInitializeFastMutex(&VfatGlobalData->CloseMutex);
|
|
InitializeListHead(&VfatGlobalData->CloseListHead);
|
|
VfatGlobalData->CloseCount = 0;
|
|
VfatGlobalData->CloseWorkerRunning = FALSE;
|
|
VfatGlobalData->ShutdownStarted = FALSE;
|
|
VfatGlobalData->CloseWorkItem = IoAllocateWorkItem(DeviceObject);
|
|
if (VfatGlobalData->CloseWorkItem == NULL)
|
|
{
|
|
IoDeleteDevice(DeviceObject);
|
|
return STATUS_INSUFFICIENT_RESOURCES;
|
|
}
|
|
|
|
DeviceObject->Flags |= DO_DIRECT_IO;
|
|
DriverObject->MajorFunction[IRP_MJ_CLOSE] = VfatBuildRequest;
|
|
DriverObject->MajorFunction[IRP_MJ_CREATE] = VfatBuildRequest;
|
|
DriverObject->MajorFunction[IRP_MJ_READ] = VfatBuildRequest;
|
|
DriverObject->MajorFunction[IRP_MJ_WRITE] = VfatBuildRequest;
|
|
DriverObject->MajorFunction[IRP_MJ_FILE_SYSTEM_CONTROL] = VfatBuildRequest;
|
|
DriverObject->MajorFunction[IRP_MJ_QUERY_INFORMATION] = VfatBuildRequest;
|
|
DriverObject->MajorFunction[IRP_MJ_SET_INFORMATION] = VfatBuildRequest;
|
|
DriverObject->MajorFunction[IRP_MJ_DIRECTORY_CONTROL] = VfatBuildRequest;
|
|
DriverObject->MajorFunction[IRP_MJ_QUERY_VOLUME_INFORMATION] = VfatBuildRequest;
|
|
DriverObject->MajorFunction[IRP_MJ_SET_VOLUME_INFORMATION] = VfatBuildRequest;
|
|
DriverObject->MajorFunction[IRP_MJ_SHUTDOWN] = VfatShutdown;
|
|
DriverObject->MajorFunction[IRP_MJ_LOCK_CONTROL] = VfatBuildRequest;
|
|
DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = VfatBuildRequest;
|
|
DriverObject->MajorFunction[IRP_MJ_CLEANUP] = VfatBuildRequest;
|
|
DriverObject->MajorFunction[IRP_MJ_FLUSH_BUFFERS] = VfatBuildRequest;
|
|
DriverObject->MajorFunction[IRP_MJ_PNP] = VfatBuildRequest;
|
|
|
|
DriverObject->DriverUnload = NULL;
|
|
|
|
/* Cache manager */
|
|
VfatGlobalData->CacheMgrCallbacks.AcquireForLazyWrite = VfatAcquireForLazyWrite;
|
|
VfatGlobalData->CacheMgrCallbacks.ReleaseFromLazyWrite = VfatReleaseFromLazyWrite;
|
|
VfatGlobalData->CacheMgrCallbacks.AcquireForReadAhead = VfatAcquireForLazyWrite;
|
|
VfatGlobalData->CacheMgrCallbacks.ReleaseFromReadAhead = VfatReleaseFromLazyWrite;
|
|
|
|
/* Fast I/O */
|
|
VfatInitFastIoRoutines(&VfatGlobalData->FastIoDispatch);
|
|
DriverObject->FastIoDispatch = &VfatGlobalData->FastIoDispatch;
|
|
|
|
/* Private lists */
|
|
ExInitializeNPagedLookasideList(&VfatGlobalData->FcbLookasideList,
|
|
NULL, NULL, 0, sizeof(VFATFCB), TAG_FCB, 0);
|
|
ExInitializeNPagedLookasideList(&VfatGlobalData->CcbLookasideList,
|
|
NULL, NULL, 0, sizeof(VFATCCB), TAG_CCB, 0);
|
|
ExInitializeNPagedLookasideList(&VfatGlobalData->IrpContextLookasideList,
|
|
NULL, NULL, 0, sizeof(VFAT_IRP_CONTEXT), TAG_IRP, 0);
|
|
ExInitializePagedLookasideList(&VfatGlobalData->CloseContextLookasideList,
|
|
NULL, NULL, 0, sizeof(VFAT_CLOSE_CONTEXT), TAG_CLOSE, 0);
|
|
|
|
ExInitializeResourceLite(&VfatGlobalData->VolumeListLock);
|
|
InitializeListHead(&VfatGlobalData->VolumeListHead);
|
|
IoRegisterFileSystem(DeviceObject);
|
|
|
|
#ifdef KDBG
|
|
{
|
|
BOOLEAN Registered;
|
|
|
|
Registered = KdRosRegisterCliCallback(vfatKdbgHandler);
|
|
DPRINT1("VFATFS KDBG extension registered: %s\n", (Registered ? "yes" : "no"));
|
|
}
|
|
#endif
|
|
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
/* EOF */
|