+++ /dev/null
-/*
- * FFS File System Driver for Windows
- *
- * init.c
- *
- * 2004.5.6 ~
- *
- * Lee Jae-Hong, http://www.pyrasis.com
- *
- * See License.txt
- *
- */
-
-#include <ntifs.h>
-#ifndef __REACTOS__
-#include <wdmsec.h>
-#endif
-#include "ffsdrv.h"
-
-/* Globals */
-
-PFFS_GLOBAL FFSGlobal = NULL;
-
-
-/* Definitions */
-
-NTSTATUS NTAPI
-DriverEntry(
- IN PDRIVER_OBJECT DriverObject,
- IN PUNICODE_STRING RegistryPath);
-
-#ifdef ALLOC_PRAGMA
-#pragma alloc_text(INIT, FFSQueryParameters)
-#pragma alloc_text(INIT, DriverEntry)
-#if FFS_UNLOAD
-#pragma alloc_text(PAGE, DriverUnload)
-#endif
-#endif
-
-
-#if FFS_UNLOAD
-
-/*
- * FUNCTION: Called by the system to unload the driver
- * ARGUMENTS:
- * DriverObject = object describing this driver
- * RETURNS: None
- */
-
-VOID NTAPI
-DriverUnload(
- IN PDRIVER_OBJECT DriverObject)
-{
- UNICODE_STRING DosDeviceName;
-
- PAGED_CODE();
-
- FFSPrint((DBG_FUNC, "ffsdrv: Unloading routine.\n"));
-
- RtlInitUnicodeString(&DosDeviceName, DOS_DEVICE_NAME);
- IoDeleteSymbolicLink(&DosDeviceName);
-
- ExDeleteResourceLite(&FFSGlobal->LAResource);
- ExDeleteResourceLite(&FFSGlobal->CountResource);
- ExDeleteResourceLite(&FFSGlobal->Resource);
-
- ExDeletePagedLookasideList(&(FFSGlobal->FFSMcbLookasideList));
- ExDeleteNPagedLookasideList(&(FFSGlobal->FFSCcbLookasideList));
- ExDeleteNPagedLookasideList(&(FFSGlobal->FFSFcbLookasideList));
- ExDeleteNPagedLookasideList(&(FFSGlobal->FFSIrpContextLookasideList));
-
- IoDeleteDevice(FFSGlobal->DeviceObject);
-}
-
-#endif
-
-BOOLEAN
-FFSQueryParameters(
- IN PUNICODE_STRING RegistryPath)
-{
- NTSTATUS Status;
- UNICODE_STRING ParameterPath;
- RTL_QUERY_REGISTRY_TABLE QueryTable[2];
-
- ULONG WritingSupport;
- ULONG CheckingBitmap;
- ULONG PartitionNumber;
-
- ParameterPath.Length = 0;
-
- ParameterPath.MaximumLength =
- RegistryPath->Length + sizeof(PARAMETERS_KEY) + sizeof(WCHAR);
-
- ParameterPath.Buffer =
- (PWSTR) ExAllocatePoolWithTag(PagedPool, ParameterPath.MaximumLength, FFS_POOL_TAG);
-
- if (!ParameterPath.Buffer)
- {
- return FALSE;
- }
-
- WritingSupport = 0;
- CheckingBitmap = 0;
- PartitionNumber = 0;
-
- RtlCopyUnicodeString(&ParameterPath, RegistryPath);
-
- RtlAppendUnicodeToString(&ParameterPath, PARAMETERS_KEY);
-
- RtlZeroMemory(&QueryTable[0], sizeof(RTL_QUERY_REGISTRY_TABLE) * 2);
-
- QueryTable[0].Flags = RTL_QUERY_REGISTRY_DIRECT | RTL_QUERY_REGISTRY_REQUIRED;
- QueryTable[0].Name = WRITING_SUPPORT;
- QueryTable[0].EntryContext = &WritingSupport;
-
- Status = RtlQueryRegistryValues(
- RTL_REGISTRY_ABSOLUTE,
- ParameterPath.Buffer,
- &QueryTable[0],
- NULL,
- NULL);
-
- FFSPrint((DBG_USER, "FFSQueryParameters: WritingSupport=%xh\n", WritingSupport));
-
- RtlZeroMemory(&QueryTable[0], sizeof(RTL_QUERY_REGISTRY_TABLE) * 2);
-
- QueryTable[0].Flags = RTL_QUERY_REGISTRY_DIRECT | RTL_QUERY_REGISTRY_REQUIRED;
- QueryTable[0].Name = CHECKING_BITMAP;
- QueryTable[0].EntryContext = &CheckingBitmap;
-
- Status = RtlQueryRegistryValues(
- RTL_REGISTRY_ABSOLUTE,
- ParameterPath.Buffer,
- &QueryTable[0],
- NULL,
- NULL);
-
- FFSPrint((DBG_USER, "FFSQueryParameters: CheckingBitmap=%xh\n", CheckingBitmap));
-
- RtlZeroMemory(&QueryTable[0], sizeof(RTL_QUERY_REGISTRY_TABLE) * 2);
-
- QueryTable[0].Flags = RTL_QUERY_REGISTRY_DIRECT | RTL_QUERY_REGISTRY_REQUIRED;
- QueryTable[0].Name = PARTITION_NUMBER;
- QueryTable[0].EntryContext = &PartitionNumber;
-
- Status = RtlQueryRegistryValues(
- RTL_REGISTRY_ABSOLUTE,
- ParameterPath.Buffer,
- &QueryTable[0],
- NULL,
- NULL);
-
- FFSPrint((DBG_USER, "FFSQueryParameters: PartitionNumber=%xh\n", PartitionNumber));
-
- {
- if (WritingSupport)
- {
- SetFlag(FFSGlobal->Flags, FFS_SUPPORT_WRITING);
- }
- else
- {
- ClearFlag(FFSGlobal->Flags, FFS_SUPPORT_WRITING);
- }
-
- if (CheckingBitmap)
- {
- SetFlag(FFSGlobal->Flags, FFS_CHECKING_BITMAP);
- }
- else
- {
- ClearFlag(FFSGlobal->Flags, FFS_CHECKING_BITMAP);
- }
-
- if (PartitionNumber)
- {
- FFSGlobal->PartitionNumber = PartitionNumber;
- }
-
- }
-
- ExFreePool(ParameterPath.Buffer);
-
- return TRUE;
-}
-
-
-#define NLS_OEM_LEAD_BYTE_INFO (*NlsOemLeadByteInfo)
-
-#ifndef __REACTOS__
-#define FsRtlIsLeadDbcsCharacter(DBCS_CHAR) ( \
- (BOOLEAN)((UCHAR)(DBCS_CHAR) < 0x80 ? FALSE : \
- (NLS_MB_CODE_PAGE_TAG && \
- (NLS_OEM_LEAD_BYTE_INFO[(UCHAR)(DBCS_CHAR)] != 0))) \
-)
-#endif
-
-
-/*
- * NAME: DriverEntry
- * FUNCTION: Called by the system to initalize the driver
- *
- * ARGUMENTS:
- * DriverObject = object describing this driver
- * RegistryPath = path to our configuration entries
- * RETURNS: Success or failure
- */
-NTSTATUS NTAPI
-DriverEntry(
- IN PDRIVER_OBJECT DriverObject,
- IN PUNICODE_STRING RegistryPath)
-{
- PDEVICE_OBJECT DeviceObject;
- PFAST_IO_DISPATCH FastIoDispatch;
- PCACHE_MANAGER_CALLBACKS CacheManagerCallbacks;
- PFFS_EXT DeviceExt;
- UNICODE_STRING DeviceName;
-#ifndef __REACTOS__
- UNICODE_STRING Sddl;
-#endif
- NTSTATUS Status;
-#if FFS_UNLOAD
- UNICODE_STRING DosDeviceName;
-#endif
-
- DbgPrint(
- "ffsdrv --"
- " Version "
- FFSDRV_VERSION
-#if FFS_READ_ONLY
- " (ReadOnly)"
-#endif // FFS_READ_ONLY
-#if DBG
- " Checked"
-#else
- " Free"
-#endif
- " - Built at "
- __DATE__" "
- __TIME__".\n");
-
- FFSPrint((DBG_FUNC, "FFS DriverEntry ...\n"));
-
- RtlInitUnicodeString(&DeviceName, DEVICE_NAME);
-#ifndef __REACTOS__
- RtlInitUnicodeString(&Sddl, L"D:P(A;;GA;;;SY)(A;;GA;;;BA)(A;;GA;;;BU)");
-
- Status = IoCreateDeviceSecure(
- DriverObject,
- sizeof(FFS_EXT),
- &DeviceName,
- FILE_DEVICE_DISK_FILE_SYSTEM,
- 0,
- FALSE,
- &Sddl,
- NULL,
- &DeviceObject);
-#else
-
- Status = IoCreateDevice(
- DriverObject,
- sizeof(FFS_EXT),
- &DeviceName,
- FILE_DEVICE_DISK_FILE_SYSTEM,
- 0,
- FALSE,
- &DeviceObject);
-#endif
- if (!NT_SUCCESS(Status))
- {
- FFSPrint((DBG_ERROR, "IoCreateDevice fs object error.\n"));
- return Status;
- }
-
- DeviceExt = (PFFS_EXT)DeviceObject->DeviceExtension;
- RtlZeroMemory(DeviceExt, sizeof(FFS_EXT));
-
- FFSGlobal = &(DeviceExt->FFSGlobal);
-
- FFSGlobal->Identifier.Type = FFSFGD;
- FFSGlobal->Identifier.Size = sizeof(FFS_GLOBAL);
- FFSGlobal->DeviceObject = DeviceObject;
- FFSGlobal->DriverObject = DriverObject;
- FFSGlobal->PartitionNumber = 0;
-
- FFSQueryParameters(RegistryPath);
-
- DriverObject->MajorFunction[IRP_MJ_CREATE] = FFSBuildRequest;
- DriverObject->MajorFunction[IRP_MJ_CLOSE] = FFSBuildRequest;
- DriverObject->MajorFunction[IRP_MJ_READ] = FFSBuildRequest;
-#if !FFS_READ_ONLY
- DriverObject->MajorFunction[IRP_MJ_WRITE] = FFSBuildRequest;
-#endif // !FFS_READ_ONLY
-
- DriverObject->MajorFunction[IRP_MJ_FLUSH_BUFFERS] = FFSBuildRequest;
- DriverObject->MajorFunction[IRP_MJ_SHUTDOWN] = FFSBuildRequest;
-
- DriverObject->MajorFunction[IRP_MJ_QUERY_INFORMATION] = FFSBuildRequest;
- DriverObject->MajorFunction[IRP_MJ_SET_INFORMATION] = FFSBuildRequest;
-
- DriverObject->MajorFunction[IRP_MJ_QUERY_VOLUME_INFORMATION] = FFSBuildRequest;
-#if !FFS_READ_ONLY
- DriverObject->MajorFunction[IRP_MJ_SET_VOLUME_INFORMATION] = FFSBuildRequest;
-#endif // !FFS_READ_ONLY
-
- DriverObject->MajorFunction[IRP_MJ_DIRECTORY_CONTROL] = FFSBuildRequest;
- DriverObject->MajorFunction[IRP_MJ_FILE_SYSTEM_CONTROL] = FFSBuildRequest;
- DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = FFSBuildRequest;
- DriverObject->MajorFunction[IRP_MJ_LOCK_CONTROL] = FFSBuildRequest;
-
- DriverObject->MajorFunction[IRP_MJ_CLEANUP] = FFSBuildRequest;
-
-#if (_WIN32_WINNT >= 0x0500)
- DriverObject->MajorFunction[IRP_MJ_PNP] = FFSBuildRequest;
-#endif //(_WIN32_WINNT >= 0x0500)
-
-#if FFS_UNLOAD
-#ifdef _MSC_VER
-#pragma prefast( suppress: 28175, "allowed to unload" )
-#endif
- DriverObject->DriverUnload = DriverUnload;
-#else
-#ifdef _MSC_VER
-#pragma prefast( suppress: 28175, "allowed to unload" )
-#endif
- DriverObject->DriverUnload = NULL;
-#endif
-
- //
- // Initialize the fast I/O entry points
- //
-
- FastIoDispatch = &(FFSGlobal->FastIoDispatch);
-
- FastIoDispatch->SizeOfFastIoDispatch = sizeof(FAST_IO_DISPATCH);
- FastIoDispatch->FastIoCheckIfPossible = FFSFastIoCheckIfPossible;
-#if DBG
- FastIoDispatch->FastIoRead = FFSFastIoRead;
-#if !FFS_READ_ONLY
- FastIoDispatch->FastIoWrite = FFSFastIoWrite;
-#endif // !FFS_READ_ONLY
-#else
-#ifdef _MSC_VER
-#pragma prefast( suppress: 28155, "allowed in file system drivers" )
-#endif
- FastIoDispatch->FastIoRead = FsRtlCopyRead;
-#if !FFS_READ_ONLY
-#ifdef _MSC_VER
-#pragma prefast( suppress: 28155, "allowed in file system drivers" )
-#endif
- FastIoDispatch->FastIoWrite = FsRtlCopyWrite;
-#endif // !FFS_READ_ONLY
-#endif
- FastIoDispatch->FastIoQueryBasicInfo = FFSFastIoQueryBasicInfo;
- FastIoDispatch->FastIoQueryStandardInfo = FFSFastIoQueryStandardInfo;
- FastIoDispatch->FastIoLock = FFSFastIoLock;
- FastIoDispatch->FastIoUnlockSingle = FFSFastIoUnlockSingle;
- FastIoDispatch->FastIoUnlockAll = FFSFastIoUnlockAll;
- FastIoDispatch->FastIoUnlockAllByKey = FFSFastIoUnlockAllByKey;
- FastIoDispatch->FastIoQueryNetworkOpenInfo = FFSFastIoQueryNetworkOpenInfo;
-
-#ifdef _MSC_VER
-#pragma prefast( suppress: 28175, "allowed in file system drivers" )
-#endif
- DriverObject->FastIoDispatch = FastIoDispatch;
-
- switch (MmQuerySystemSize())
- {
- case MmSmallSystem:
-
- FFSGlobal->MaxDepth = 16;
- break;
-
- case MmMediumSystem:
-
- FFSGlobal->MaxDepth = 64;
- break;
-
- case MmLargeSystem:
-
- FFSGlobal->MaxDepth = 256;
- break;
- }
-
- //
- // Initialize the Cache Manager callbacks
- //
-
- CacheManagerCallbacks = &(FFSGlobal->CacheManagerCallbacks);
- CacheManagerCallbacks->AcquireForLazyWrite = FFSAcquireForLazyWrite;
- CacheManagerCallbacks->ReleaseFromLazyWrite = FFSReleaseFromLazyWrite;
- CacheManagerCallbacks->AcquireForReadAhead = FFSAcquireForReadAhead;
- CacheManagerCallbacks->ReleaseFromReadAhead = FFSReleaseFromReadAhead;
-
- FFSGlobal->CacheManagerNoOpCallbacks.AcquireForLazyWrite = FFSNoOpAcquire;
- FFSGlobal->CacheManagerNoOpCallbacks.ReleaseFromLazyWrite = FFSNoOpRelease;
- FFSGlobal->CacheManagerNoOpCallbacks.AcquireForReadAhead = FFSNoOpAcquire;
- FFSGlobal->CacheManagerNoOpCallbacks.ReleaseFromReadAhead = FFSNoOpRelease;
-
-
- //
- // Initialize the global data
- //
-
- InitializeListHead(&(FFSGlobal->VcbList));
- ExInitializeResourceLite(&(FFSGlobal->Resource));
- ExInitializeResourceLite(&(FFSGlobal->CountResource));
- ExInitializeResourceLite(&(FFSGlobal->LAResource));
-
- ExInitializeNPagedLookasideList(&(FFSGlobal->FFSIrpContextLookasideList),
- NULL,
- NULL,
- 0,
- sizeof(FFS_IRP_CONTEXT),
- 'SFF',
- 0);
-
- ExInitializeNPagedLookasideList(&(FFSGlobal->FFSFcbLookasideList),
- NULL,
- NULL,
- 0,
- sizeof(FFS_FCB),
- 'SFF',
- 0);
-
- ExInitializeNPagedLookasideList(&(FFSGlobal->FFSCcbLookasideList),
- NULL,
- NULL,
- 0,
- sizeof(FFS_CCB),
- 'SFF',
- 0);
-
- ExInitializePagedLookasideList(&(FFSGlobal->FFSMcbLookasideList),
- NULL,
- NULL,
- 0,
- sizeof(FFS_MCB),
- 'SFF',
- 0);
-
-#if FFS_UNLOAD
- RtlInitUnicodeString(&DosDeviceName, DOS_DEVICE_NAME);
- IoCreateSymbolicLink(&DosDeviceName, &DeviceName);
-#endif
-
-#if DBG
- ProcessNameOffset = FFSGetProcessNameOffset();
-#endif
-
- IoRegisterFileSystem(DeviceObject);
-
- return Status;
-}
projects / reactos.git / blobdiff