/*
* 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
DriverEntry (
IN PDRIVER_OBJECT DriverObject,
IN PUNICODE_STRING RegistryPath
)
{
PDEVICE_OBJECT DiskdevObject = NULL;
PDEVICE_OBJECT CdromdevObject = NULL;
UNICODE_STRING DeviceName;
UNICODE_STRING DosDeviceName;
PFAST_IO_DISPATCH FastIoDispatch;
PCACHE_MANAGER_CALLBACKS CacheManagerCallbacks;
NTSTATUS Status;
int rc = 0;
BOOLEAN linux_lib_inited = FALSE;
BOOLEAN journal_module_inited = FALSE;
/* Verity super block ... */
ASSERT(sizeof(EXT2_SUPER_BLOCK) == 1024);
ASSERT(FIELD_OFFSET(EXT2_SUPER_BLOCK, s_magic) == 56);
DbgPrint(
"Ext2Fsd --"
#ifdef _WIN2K_TARGET_
" Win2k --"
#endif
" Version "
EXT2FSD_VERSION
#if EXT2_DEBUG
" Checked"
#else
" Free"
#endif
" -- "
__DATE__ " "
__TIME__ ".\n");
DEBUG(DL_FUN, ( "Ext2 DriverEntry ...\n"));
/* initialize winlib structures */
if (ext2_init_linux()) {
Status = STATUS_INSUFFICIENT_RESOURCES;
goto errorout;
}
linux_lib_inited = TRUE;
/* initialize journal module structures */
LOAD_MODULE(journal_init);
if (rc != 0) {
Status = STATUS_INSUFFICIENT_RESOURCES;
goto errorout;
}
journal_module_inited = TRUE;
/* allocate memory for Ext2Global */
Ext2Global = Ext2AllocatePool(NonPagedPool, sizeof(EXT2_GLOBAL), 'LG2E');
if (!Ext2Global) {
Status = STATUS_INSUFFICIENT_RESOURCES;
goto errorout;
}
/* initialize Ext2Global */
RtlZeroMemory(Ext2Global, sizeof(EXT2_GLOBAL));
Ext2Global->Identifier.Type = EXT2FGD;
Ext2Global->Identifier.Size = sizeof(EXT2_GLOBAL);
InitializeListHead(&(Ext2Global->VcbList));
ExInitializeResourceLite(&(Ext2Global->Resource));
/* query registry settings */
Ext2QueryRegistrySettings(RegistryPath);
/* create Ext2Fsd cdrom fs deivce */
RtlInitUnicodeString(&DeviceName, CDROM_NAME);
Status = IoCreateDevice(
DriverObject,
0,
&DeviceName,
FILE_DEVICE_CD_ROM_FILE_SYSTEM,
0,
FALSE,
&CdromdevObject );
if (!NT_SUCCESS(Status)) {
DEBUG(DL_ERR, ( "IoCreateDevice cdrom device object error.\n"));
goto errorout;
}
/* create Ext2Fsd disk fs deivce */
RtlInitUnicodeString(&DeviceName, DEVICE_NAME);
Status = IoCreateDevice(
DriverObject,
0,
&DeviceName,
FILE_DEVICE_DISK_FILE_SYSTEM,
0,
FALSE,
&DiskdevObject );
if (!NT_SUCCESS(Status)) {
DEBUG(DL_ERR, ( "IoCreateDevice disk device object error.\n"));
goto errorout;
}
Status= Ext2StartReaper(
&Ext2Global->FcbReaper,
Ext2FcbReaperThread);
if (!NT_SUCCESS(Status)) {
goto errorout;
}
/* start resource reaper thread */
Status= Ext2StartReaper(
&Ext2Global->McbReaper,
Ext2McbReaperThread);
if (!NT_SUCCESS(Status)) {
Ext2StopReaper(&Ext2Global->FcbReaper);
goto errorout;
}
Status= Ext2StartReaper(
&Ext2Global->bhReaper,
Ext2bhReaperThread);
if (!NT_SUCCESS(Status)) {
Ext2StopReaper(&Ext2Global->FcbReaper);
Ext2StopReaper(&Ext2Global->McbReaper);
goto errorout;
}
/* initializing */
Ext2Global->DiskdevObject = DiskdevObject;
Ext2Global->CdromdevObject = CdromdevObject;
DriverObject->MajorFunction[IRP_MJ_CREATE] = Ext2BuildRequest;
DriverObject->MajorFunction[IRP_MJ_CLOSE] = Ext2BuildRequest;
DriverObject->MajorFunction[IRP_MJ_READ] = Ext2BuildRequest;
DriverObject->MajorFunction[IRP_MJ_WRITE] = Ext2BuildRequest;
DriverObject->MajorFunction[IRP_MJ_FLUSH_BUFFERS] = Ext2BuildRequest;
DriverObject->MajorFunction[IRP_MJ_SHUTDOWN] = Ext2BuildRequest;
DriverObject->MajorFunction[IRP_MJ_QUERY_INFORMATION] = Ext2BuildRequest;
DriverObject->MajorFunction[IRP_MJ_SET_INFORMATION] = Ext2BuildRequest;
DriverObject->MajorFunction[IRP_MJ_QUERY_VOLUME_INFORMATION] = Ext2BuildRequest;
DriverObject->MajorFunction[IRP_MJ_SET_VOLUME_INFORMATION] = Ext2BuildRequest;
DriverObject->MajorFunction[IRP_MJ_DIRECTORY_CONTROL] = Ext2BuildRequest;
DriverObject->MajorFunction[IRP_MJ_FILE_SYSTEM_CONTROL] = Ext2BuildRequest;
DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = Ext2BuildRequest;
DriverObject->MajorFunction[IRP_MJ_LOCK_CONTROL] = Ext2BuildRequest;
DriverObject->MajorFunction[IRP_MJ_CLEANUP] = Ext2BuildRequest;
#if (_WIN32_WINNT >= 0x0500)
DriverObject->MajorFunction[IRP_MJ_PNP] = Ext2BuildRequest;
#endif //(_WIN32_WINNT >= 0x0500)
#if EXT2_UNLOAD
DriverObject->DriverUnload = DriverUnload;
#else
DriverObject->DriverUnload = NULL;
#endif
//
// Initialize the fast I/O entry points
//
FastIoDispatch = &(Ext2Global->FastIoDispatch);
FastIoDispatch->SizeOfFastIoDispatch = sizeof(FAST_IO_DISPATCH);
FastIoDispatch->FastIoCheckIfPossible = Ext2FastIoCheckIfPossible;
FastIoDispatch->FastIoRead = Ext2FastIoRead;
FastIoDispatch->FastIoWrite = Ext2FastIoWrite;
FastIoDispatch->FastIoQueryBasicInfo = Ext2FastIoQueryBasicInfo;
FastIoDispatch->FastIoQueryStandardInfo = Ext2FastIoQueryStandardInfo;
FastIoDispatch->FastIoLock = Ext2FastIoLock;
FastIoDispatch->FastIoUnlockSingle = Ext2FastIoUnlockSingle;
FastIoDispatch->FastIoUnlockAll = Ext2FastIoUnlockAll;
FastIoDispatch->FastIoUnlockAllByKey = Ext2FastIoUnlockAllByKey;
FastIoDispatch->FastIoQueryNetworkOpenInfo = Ext2FastIoQueryNetworkOpenInfo;
FastIoDispatch->AcquireForModWrite = Ext2AcquireFileForModWrite;
FastIoDispatch->ReleaseForModWrite = Ext2ReleaseFileForModWrite;
FastIoDispatch->AcquireForModWrite = Ext2AcquireFileForModWrite;
FastIoDispatch->ReleaseForModWrite = Ext2ReleaseFileForModWrite;
FastIoDispatch->AcquireForCcFlush = Ext2AcquireFileForCcFlush;
FastIoDispatch->ReleaseForCcFlush = Ext2ReleaseFileForCcFlush;
FastIoDispatch->AcquireFileForNtCreateSection = Ext2AcquireForCreateSection;
FastIoDispatch->ReleaseFileForNtCreateSection = Ext2ReleaseForCreateSection;
DriverObject->FastIoDispatch = FastIoDispatch;
//
// initializing structure sizes for statistics
// 1 means flexible/not fixed for all allocations (for different volumes).
//
Ext2Global->PerfStat.Magic = EXT2_PERF_STAT_MAGIC;
Ext2Global->PerfStat.Version = EXT2_PERF_STAT_VER2;
Ext2Global->PerfStat.Length = sizeof(EXT2_PERF_STATISTICS_V2);
Ext2Global->PerfStat.Unit.Slot[PS_IRP_CONTEXT] = sizeof(EXT2_IRP_CONTEXT); /* 0 */
Ext2Global->PerfStat.Unit.Slot[PS_VCB] = sizeof(EXT2_VCB); /* 1 */
Ext2Global->PerfStat.Unit.Slot[PS_FCB] = sizeof(EXT2_FCB); /* 2 */
Ext2Global->PerfStat.Unit.Slot[PS_CCB] = sizeof(EXT2_CCB); /* 3 */
Ext2Global->PerfStat.Unit.Slot[PS_MCB] = sizeof(EXT2_MCB); /* 4 */
Ext2Global->PerfStat.Unit.Slot[PS_EXTENT] = sizeof(EXT2_EXTENT); /* 5 */
Ext2Global->PerfStat.Unit.Slot[PS_RW_CONTEXT] = sizeof(EXT2_RW_CONTEXT); /* 6 */
Ext2Global->PerfStat.Unit.Slot[PS_VPB] = sizeof(VPB); /* 7 */
Ext2Global->PerfStat.Unit.Slot[PS_FILE_NAME] = 1; /* 8 */
Ext2Global->PerfStat.Unit.Slot[PS_MCB_NAME] = 1; /* 9 */
Ext2Global->PerfStat.Unit.Slot[PS_INODE_NAME] = 1; /* a */
Ext2Global->PerfStat.Unit.Slot[PS_DIR_ENTRY] = sizeof(EXT2_DIR_ENTRY2); /* b */
Ext2Global->PerfStat.Unit.Slot[PS_DIR_PATTERN] = 1; /* c */
Ext2Global->PerfStat.Unit.Slot[PS_DISK_EVENT] = sizeof(KEVENT); /* d */
Ext2Global->PerfStat.Unit.Slot[PS_DISK_BUFFER] = 1; /* e */
Ext2Global->PerfStat.Unit.Slot[PS_BLOCK_DATA] = 1; /* f */
Ext2Global->PerfStat.Unit.Slot[PS_EXT2_INODE] = 1; /* 10 */
Ext2Global->PerfStat.Unit.Slot[PS_DENTRY] = sizeof(struct dentry); /* 11 */
Ext2Global->PerfStat.Unit.Slot[PS_BUFF_HEAD] = sizeof(struct buffer_head); /* 12 */
switch ( MmQuerySystemSize() ) {
case MmSmallSystem:
Ext2Global->MaxDepth = 64;
break;
case MmMediumSystem:
Ext2Global->MaxDepth = 128;
break;
case MmLargeSystem:
Ext2Global->MaxDepth = 256;
break;
}
//
// Initialize the Cache Manager callbacks
//
CacheManagerCallbacks = &(Ext2Global->CacheManagerCallbacks);
CacheManagerCallbacks->AcquireForLazyWrite = Ext2AcquireForLazyWrite;
CacheManagerCallbacks->ReleaseFromLazyWrite = Ext2ReleaseFromLazyWrite;
CacheManagerCallbacks->AcquireForReadAhead = Ext2AcquireForReadAhead;
CacheManagerCallbacks->ReleaseFromReadAhead = Ext2ReleaseFromReadAhead;
Ext2Global->CacheManagerNoOpCallbacks.AcquireForLazyWrite = Ext2NoOpAcquire;
Ext2Global->CacheManagerNoOpCallbacks.ReleaseFromLazyWrite = Ext2NoOpRelease;
Ext2Global->CacheManagerNoOpCallbacks.AcquireForReadAhead = Ext2NoOpAcquire;
Ext2Global->CacheManagerNoOpCallbacks.ReleaseFromReadAhead = Ext2NoOpRelease;
#ifndef _WIN2K_TARGET_
//
// Initialize FS Filter callbacks
//
RtlZeroMemory(&Ext2Global->FilterCallbacks, sizeof(FS_FILTER_CALLBACKS));
Ext2Global->FilterCallbacks.SizeOfFsFilterCallbacks = sizeof(FS_FILTER_CALLBACKS);
Ext2Global->FilterCallbacks.PreAcquireForSectionSynchronization = Ext2PreAcquireForCreateSection;
FsRtlRegisterFileSystemFilterCallbacks(DriverObject, &Ext2Global->FilterCallbacks );
#endif
//
// Initialize the global data
//
ExInitializeNPagedLookasideList( &(Ext2Global->Ext2IrpContextLookasideList),
NULL,
NULL,
0,
sizeof(EXT2_IRP_CONTEXT),
'PRIE',
0 );
ExInitializeNPagedLookasideList( &(Ext2Global->Ext2FcbLookasideList),
NULL,
NULL,
0,
sizeof(EXT2_FCB),
'BCFE',
0 );
ExInitializeNPagedLookasideList( &(Ext2Global->Ext2CcbLookasideList),
NULL,
NULL,
0,
sizeof(EXT2_CCB),
'BCCE',
0 );
ExInitializeNPagedLookasideList( &(Ext2Global->Ext2McbLookasideList),
NULL,
NULL,
0,
sizeof(EXT2_MCB),
'BCME',
0 );
ExInitializeNPagedLookasideList( &(Ext2Global->Ext2ExtLookasideList),
NULL,
NULL,
0,
sizeof(EXT2_EXTENT),
'STXE',
0 );
ExInitializeNPagedLookasideList( &(Ext2Global->Ext2DentryLookasideList),
NULL,
NULL,
0,
sizeof(struct dentry),
'TNED',
0 );
RtlInitUnicodeString(&DosDeviceName, DOS_DEVICE_NAME);
IoCreateSymbolicLink(&DosDeviceName, &DeviceName);
#if EXT2_DEBUG
ProcessNameOffset = Ext2GetProcessNameOffset();
#endif
Ext2LoadAllNls();
Ext2Global->Codepage.PageTable =
load_nls(Ext2Global->Codepage.AnsiName);
/* register file system devices for disk and cdrom */
IoRegisterFileSystem(DiskdevObject);
ObReferenceObject(DiskdevObject);
IoRegisterFileSystem(CdromdevObject);
ObReferenceObject(CdromdevObject);
errorout:
if (!NT_SUCCESS(Status)) {
/*
* stop reaper thread ...
*/
/*
* cleanup resources ...
*/
if (Ext2Global) {
ExDeleteResourceLite(&Ext2Global->Resource);
Ext2FreePool(Ext2Global, 'LG2E');
}
if (CdromdevObject) {
IoDeleteDevice(CdromdevObject);
}
if (DiskdevObject) {
IoDeleteDevice(DiskdevObject);
}
if (journal_module_inited) {
/* cleanup journal related caches */
UNLOAD_MODULE(journal_exit);
}
if (linux_lib_inited) {
/* cleanup linux lib */
ext2_destroy_linux();
}
}
return Status;
}
NTSTATUS
DriverEntry(
IN PDRIVER_OBJECT DriverObject,
IN PUNICODE_STRING RegistryPath
)
/*++
Routine Description:
This is the initialization routine for the Fat file system
device driver. This routine creates the device object for the FileSystem
device and performs all other driver initialization.
Arguments:
DriverObject - Pointer to driver object created by the system.
Return Value:
NTSTATUS - The function value is the final status from the initialization
operation.
--*/
{
USHORT MaxDepth;
NTSTATUS Status;
UNICODE_STRING UnicodeString;
FS_FILTER_CALLBACKS FilterCallbacks;
UNICODE_STRING ValueName;
ULONG Value;
#if __NDAS_FAT__
UNICODE_STRING linkString;
UNICODE_STRING functionName;
UNICODE_STRING tempUnicode;
#endif
#if DBG
DbgPrint( "NdasFat DriverEntry %s %s\n", __DATE__, __TIME__ );
#endif
#if __NDAS_FAT_DBG__
FatDebugTraceLevel |= DEBUG_TRACE_ERROR;
FatDebugTraceLevel |= DEBUG_TRACE_CLEANUP;
FatDebugTraceLevel |= DEBUG_TRACE_CLOSE;
FatDebugTraceLevel |= DEBUG_TRACE_CREATE;
FatDebugTraceLevel |= DEBUG_TRACE_DIRCTRL;
FatDebugTraceLevel |= DEBUG_TRACE_EA;
FatDebugTraceLevel |= DEBUG_TRACE_FILEINFO;
FatDebugTraceLevel |= DEBUG_TRACE_FSCTRL;
FatDebugTraceLevel |= DEBUG_TRACE_LOCKCTRL;
FatDebugTraceLevel |= DEBUG_TRACE_READ;
FatDebugTraceLevel |= DEBUG_TRACE_VOLINFO;
FatDebugTraceLevel |= DEBUG_TRACE_WRITE;
FatDebugTraceLevel |= DEBUG_TRACE_DEVCTRL;
FatDebugTraceLevel |= DEBUG_TRACE_FLUSH;
FatDebugTraceLevel |= DEBUG_TRACE_PNP;
FatDebugTraceLevel |= DEBUG_TRACE_SHUTDOWN;
FatDebugTraceLevel = 0x00000009;
//FatDebugTraceLevel |= DEBUG_TRACE_FSCTRL;
//FatDebugTraceLevel |= DEBUG_INFO_DEVCTRL;
FatDebugTraceLevel |= DEBUG_INFO_FSCTRL;
FatDebugTraceLevel |= DEBUG_INFO_READ;
FatDebugTraceLevel |= DEBUG_INFO_SECONDARY;
//FatDebugTraceLevel |= DEBUG_INFO_PRIMARY;
FatDebugTraceLevel |= DEBUG_INFO_FILOBSUP;
FatDebugTraceLevel |= DEBUG_TRACE_PNP;
FatDebugTraceLevel |= DEBUG_TRACE_SHUTDOWN;
FatDebugTraceLevel |= DEBUG_INFO_FILEINFO;
FatDebugTraceLevel |= DEBUG_INFO_CREATE;
FatDebugTraceLevel |= DEBUG_INFO_STRUCSUP;
FatDebugTraceLevel |= DEBUG_INFO_CLEANUP;
FatDebugTraceLevel |= DEBUG_INFO_CLOSE;
FatDebugTraceLevel |= DEBUG_INFO_ALL;
FatDebugTraceLevel |= DEBUG_INFO_WRITE;
//FatDebugTraceLevel |= DEBUG_TRACE_WRITE;
FatDebugTraceLevel &= ~DEBUG_TRACE_UNWIND;
//FatDebugTraceLevel = 0xFFFFFFFFFFFFFFFF;
//FatDebugTraceLevel |= DEBUG_TRACE_STRUCSUP;
FatDebugTraceLevel |= DEBUG_INFO_FILEINFO;
//FatDebugTraceLevel |= DEBUG_TRACE_FILEINFO;
DebugTrace2( 0, DEBUG_INFO_ALL, ("sizeof(NDFS_WINXP_REPLY_HEADER) = %d\n", sizeof(NDFS_WINXP_REPLY_HEADER)) );
#endif
#if __NDAS_FAT_WIN2K_SUPPORT__
PsGetVersion( &gOsMajorVersion,
&gOsMinorVersion,
NULL,
NULL );
RtlInitUnicodeString( &functionName, L"SeFilterToken" );
NdasFatSeFilterToken = MmGetSystemRoutineAddress( &functionName );
if (IS_WINDOWSXP_OR_LATER()) { // to prevent incomprehensible error
RtlInitUnicodeString( &functionName, L"CcMdlWriteAbort" );
NdasFatCcMdlWriteAbort = MmGetSystemRoutineAddress( &functionName );
}
RtlInitUnicodeString( &functionName, L"KeAreApcsDisabled" );
NdasFatKeAreApcsDisabled = MmGetSystemRoutineAddress( &functionName );
RtlInitUnicodeString( &functionName, L"KeAreAllApcsDisabled" );
NdasFatKeAreAllApcsDisabled = MmGetSystemRoutineAddress( &functionName );
RtlInitUnicodeString( &functionName, L"FsRtlRegisterFileSystemFilterCallbacks" );
NdasFatFsRtlRegisterFileSystemFilterCallbacks = MmGetSystemRoutineAddress( &functionName );
RtlInitUnicodeString( &functionName, L"FsRtlAreVolumeStartupApplicationsComplete" );
NdasFatFsRtlAreVolumeStartupApplicationsComplete = MmGetSystemRoutineAddress( &functionName );
RtlInitUnicodeString( &functionName, L"MmDoesFileHaveUserWritableReferences" );
NdasFatMmDoesFileHaveUserWritableReferences = MmGetSystemRoutineAddress( &functionName );
#endif
#if __NDAS_FAT__
RtlInitUnicodeString( &UnicodeString, NDAS_FAT_CONTROL_DEVICE_NAME );
Status = IoCreateDevice( DriverObject,
0, // has no device extension
&UnicodeString,
FILE_DEVICE_NULL,
0,
FALSE,
&FatControlDeviceObject );
if (!NT_SUCCESS( Status )) {
return Status;
}
RtlInitUnicodeString( &linkString, NDAS_FAT_CONTROL_LINK_NAME );
Status = IoCreateSymbolicLink( &linkString, &UnicodeString );
if (!NT_SUCCESS(Status)) {
IoDeleteDevice( FatControlDeviceObject );
return Status;
}
#endif
#if __NDAS_FAT__
RtlInitUnicodeString( &UnicodeString, NDAS_FAT_DEVICE_NAME );
Status = IoCreateDevice( DriverObject,
sizeof(VOLUME_DEVICE_OBJECT) - sizeof(DEVICE_OBJECT),
&UnicodeString,
FILE_DEVICE_DISK_FILE_SYSTEM,
0,
FALSE,
&FatDiskFileSystemDeviceObject );
if (!NT_SUCCESS(Status)) {
IoDeleteSymbolicLink( &linkString );
IoDeleteDevice( FatControlDeviceObject );
return Status;
}
RtlZeroMemory( (PUCHAR)FatDiskFileSystemDeviceObject+sizeof(DEVICE_OBJECT),
sizeof(VOLUME_DEVICE_OBJECT)-sizeof(DEVICE_OBJECT) );
#else
//
// Create the device object for disks. To avoid problems with filters who
// know this name, we must keep it.
//
RtlInitUnicodeString( &UnicodeString, L"\\Fat" );
Status = IoCreateDevice( DriverObject,
0,
&UnicodeString,
FILE_DEVICE_DISK_FILE_SYSTEM,
0,
FALSE,
&FatDiskFileSystemDeviceObject );
if (!NT_SUCCESS( Status )) {
return Status;
}
#endif
#if !__NDAS_FAT__
//
// Create the device object for "cdroms".
//
RtlInitUnicodeString( &UnicodeString, L"\\FatCdrom" );
Status = IoCreateDevice( DriverObject,
0,
&UnicodeString,
FILE_DEVICE_CD_ROM_FILE_SYSTEM,
0,
FALSE,
&FatCdromFileSystemDeviceObject );
if (!NT_SUCCESS( Status )) {
IoDeleteDevice( FatDiskFileSystemDeviceObject);
return Status;
}
#endif
DriverObject->DriverUnload = FatUnload;
//
// Note that because of the way data caching is done, we set neither
// the Direct I/O or Buffered I/O bit in DeviceObject->Flags. If
// data is not in the cache, or the request is not buffered, we may,
// set up for Direct I/O by hand.
//
//
// Initialize the driver object with this driver's entry points.
//
DriverObject->MajorFunction[IRP_MJ_CREATE] = (PDRIVER_DISPATCH)FatFsdCreate;
DriverObject->MajorFunction[IRP_MJ_CLOSE] = (PDRIVER_DISPATCH)FatFsdClose;
DriverObject->MajorFunction[IRP_MJ_READ] = (PDRIVER_DISPATCH)FatFsdRead;
DriverObject->MajorFunction[IRP_MJ_WRITE] = (PDRIVER_DISPATCH)FatFsdWrite;
DriverObject->MajorFunction[IRP_MJ_QUERY_INFORMATION] = (PDRIVER_DISPATCH)FatFsdQueryInformation;
DriverObject->MajorFunction[IRP_MJ_SET_INFORMATION] = (PDRIVER_DISPATCH)FatFsdSetInformation;
DriverObject->MajorFunction[IRP_MJ_QUERY_EA] = (PDRIVER_DISPATCH)FatFsdQueryEa;
DriverObject->MajorFunction[IRP_MJ_SET_EA] = (PDRIVER_DISPATCH)FatFsdSetEa;
DriverObject->MajorFunction[IRP_MJ_FLUSH_BUFFERS] = (PDRIVER_DISPATCH)FatFsdFlushBuffers;
DriverObject->MajorFunction[IRP_MJ_QUERY_VOLUME_INFORMATION] = (PDRIVER_DISPATCH)FatFsdQueryVolumeInformation;
DriverObject->MajorFunction[IRP_MJ_SET_VOLUME_INFORMATION] = (PDRIVER_DISPATCH)FatFsdSetVolumeInformation;
DriverObject->MajorFunction[IRP_MJ_CLEANUP] = (PDRIVER_DISPATCH)FatFsdCleanup;
DriverObject->MajorFunction[IRP_MJ_DIRECTORY_CONTROL] = (PDRIVER_DISPATCH)FatFsdDirectoryControl;
DriverObject->MajorFunction[IRP_MJ_FILE_SYSTEM_CONTROL] = (PDRIVER_DISPATCH)FatFsdFileSystemControl;
DriverObject->MajorFunction[IRP_MJ_LOCK_CONTROL] = (PDRIVER_DISPATCH)FatFsdLockControl;
DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = (PDRIVER_DISPATCH)FatFsdDeviceControl;
DriverObject->MajorFunction[IRP_MJ_SHUTDOWN] = (PDRIVER_DISPATCH)FatFsdShutdown;
DriverObject->MajorFunction[IRP_MJ_PNP] = (PDRIVER_DISPATCH)FatFsdPnp;
DriverObject->FastIoDispatch = &FatFastIoDispatch;
RtlZeroMemory(&FatFastIoDispatch, sizeof(FatFastIoDispatch));
FatFastIoDispatch.SizeOfFastIoDispatch = sizeof(FAST_IO_DISPATCH);
FatFastIoDispatch.FastIoCheckIfPossible = FatFastIoCheckIfPossible; // CheckForFastIo
FatFastIoDispatch.FastIoRead = FsRtlCopyRead; // Read
FatFastIoDispatch.FastIoWrite = FsRtlCopyWrite; // Write
FatFastIoDispatch.FastIoQueryBasicInfo = FatFastQueryBasicInfo; // QueryBasicInfo
FatFastIoDispatch.FastIoQueryStandardInfo = FatFastQueryStdInfo; // QueryStandardInfo
FatFastIoDispatch.FastIoLock = FatFastLock; // Lock
FatFastIoDispatch.FastIoUnlockSingle = FatFastUnlockSingle; // UnlockSingle
FatFastIoDispatch.FastIoUnlockAll = FatFastUnlockAll; // UnlockAll
FatFastIoDispatch.FastIoUnlockAllByKey = FatFastUnlockAllByKey; // UnlockAllByKey
FatFastIoDispatch.FastIoQueryNetworkOpenInfo = FatFastQueryNetworkOpenInfo;
FatFastIoDispatch.AcquireForCcFlush = FatAcquireForCcFlush;
FatFastIoDispatch.ReleaseForCcFlush = FatReleaseForCcFlush;
FatFastIoDispatch.MdlRead = FsRtlMdlReadDev;
FatFastIoDispatch.MdlReadComplete = FsRtlMdlReadCompleteDev;
FatFastIoDispatch.PrepareMdlWrite = FsRtlPrepareMdlWriteDev;
FatFastIoDispatch.MdlWriteComplete = FsRtlMdlWriteCompleteDev;
#if __NDAS_FAT_SECONDARY__
RtlZeroMemory(&FatFastIoDispatch, sizeof(FAST_IO_DISPATCH));
FatFastIoDispatch.SizeOfFastIoDispatch = sizeof(FAST_IO_DISPATCH);
//FatFastIoDispatch.FastIoCheckIfPossible = FatFastIoCheckIfPossible; // CheckForFastIo
//FatFastIoDispatch.AcquireForModWrite = FatAcquireFileForModWrite;
//FatFastIoDispatch.AcquireFileForNtCreateSection = FatAcquireForCreateSection;
//FatFastIoDispatch.ReleaseFileForNtCreateSection = FatReleaseForCreateSection;
FatFastIoDispatch.AcquireForCcFlush = FatAcquireForCcFlush;
FatFastIoDispatch.ReleaseForCcFlush = FatReleaseForCcFlush;
#endif
//
// Initialize the filter callbacks we use.
//
#if __NDAS_FAT__
if (IS_WINDOWSVISTA_OR_LATER()) {
#if __NDAS_FAT_WIN2K_SUPPORT__
if (NdasFatFsRtlRegisterFileSystemFilterCallbacks) {
RtlZeroMemory( &FilterCallbacks,
sizeof(FS_FILTER_CALLBACKS) );
FilterCallbacks.SizeOfFsFilterCallbacks = sizeof(FS_FILTER_CALLBACKS);
FilterCallbacks.PreAcquireForSectionSynchronization = FatFilterCallbackAcquireForCreateSection;
Status = NdasFatFsRtlRegisterFileSystemFilterCallbacks( DriverObject,
&FilterCallbacks );
if (!NT_SUCCESS( Status )) {
IoDeleteDevice( FatDiskFileSystemDeviceObject );
IoDeleteDevice( FatCdromFileSystemDeviceObject );
return Status;
}
}
#else
RtlZeroMemory( &FilterCallbacks,
sizeof(FS_FILTER_CALLBACKS) );
FilterCallbacks.SizeOfFsFilterCallbacks = sizeof(FS_FILTER_CALLBACKS);
FilterCallbacks.PreAcquireForSectionSynchronization = FatFilterCallbackAcquireForCreateSection;
Status = FsRtlRegisterFileSystemFilterCallbacks( DriverObject,
&FilterCallbacks );
if (!NT_SUCCESS( Status )) {
IoDeleteDevice( FatDiskFileSystemDeviceObject );
IoDeleteDevice( FatCdromFileSystemDeviceObject );
return Status;
}
#endif
}
#endif
//
// Initialize the global data structures
//
//
// The FatData record
//
RtlZeroMemory( &FatData, sizeof(FAT_DATA));
FatData.NodeTypeCode = FAT_NTC_DATA_HEADER;
FatData.NodeByteSize = sizeof(FAT_DATA);
InitializeListHead(&FatData.VcbQueue);
FatData.DriverObject = DriverObject;
FatData.DiskFileSystemDeviceObject = FatDiskFileSystemDeviceObject;
FatData.CdromFileSystemDeviceObject = FatCdromFileSystemDeviceObject;
//
// This list head keeps track of closes yet to be done.
//
InitializeListHead( &FatData.AsyncCloseList );
InitializeListHead( &FatData.DelayedCloseList );
FatData.FatCloseItem = IoAllocateWorkItem( FatDiskFileSystemDeviceObject);
if (FatData.FatCloseItem == NULL) {
IoDeleteDevice (FatDiskFileSystemDeviceObject);
#if __NDAS_FAT__
if (FatCdromFileSystemDeviceObject)
#endif
IoDeleteDevice (FatCdromFileSystemDeviceObject);
return STATUS_INSUFFICIENT_RESOURCES;
}
//
// Now initialize our general purpose spinlock (gag) and figure out how
// deep and wide we want our delayed lists (along with fooling ourselves
// about the lookaside depths).
//
KeInitializeSpinLock( &FatData.GeneralSpinLock );
switch ( MmQuerySystemSize() ) {
case MmSmallSystem:
MaxDepth = 4;
FatMaxDelayedCloseCount = FAT_MAX_DELAYED_CLOSES;
break;
case MmMediumSystem:
MaxDepth = 8;
FatMaxDelayedCloseCount = 4 * FAT_MAX_DELAYED_CLOSES;
break;
case MmLargeSystem:
MaxDepth = 16;
FatMaxDelayedCloseCount = 16 * FAT_MAX_DELAYED_CLOSES;
break;
}
//
// Initialize the cache manager callback routines
//
FatData.CacheManagerCallbacks.AcquireForLazyWrite = &FatAcquireFcbForLazyWrite;
FatData.CacheManagerCallbacks.ReleaseFromLazyWrite = &FatReleaseFcbFromLazyWrite;
FatData.CacheManagerCallbacks.AcquireForReadAhead = &FatAcquireFcbForReadAhead;
FatData.CacheManagerCallbacks.ReleaseFromReadAhead = &FatReleaseFcbFromReadAhead;
FatData.CacheManagerNoOpCallbacks.AcquireForLazyWrite = &FatNoOpAcquire;
FatData.CacheManagerNoOpCallbacks.ReleaseFromLazyWrite = &FatNoOpRelease;
FatData.CacheManagerNoOpCallbacks.AcquireForReadAhead = &FatNoOpAcquire;
FatData.CacheManagerNoOpCallbacks.ReleaseFromReadAhead = &FatNoOpRelease;
//
// Set up global pointer to our process.
//
FatData.OurProcess = PsGetCurrentProcess();
//
// Read the registry to determine if we are in ChicagoMode.
//
ValueName.Buffer = COMPATIBILITY_MODE_VALUE_NAME;
ValueName.Length = sizeof(COMPATIBILITY_MODE_VALUE_NAME) - sizeof(WCHAR);
ValueName.MaximumLength = sizeof(COMPATIBILITY_MODE_VALUE_NAME);
Status = FatGetCompatibilityModeValue( &ValueName, &Value );
if (NT_SUCCESS(Status) && FlagOn(Value, 1)) {
FatData.ChicagoMode = FALSE;
} else {
FatData.ChicagoMode = TRUE;
}
//
// Read the registry to determine if we are going to generate LFNs
// for valid 8.3 names with extended characters.
//
ValueName.Buffer = CODE_PAGE_INVARIANCE_VALUE_NAME;
ValueName.Length = sizeof(CODE_PAGE_INVARIANCE_VALUE_NAME) - sizeof(WCHAR);
ValueName.MaximumLength = sizeof(CODE_PAGE_INVARIANCE_VALUE_NAME);
Status = FatGetCompatibilityModeValue( &ValueName, &Value );
if (NT_SUCCESS(Status) && FlagOn(Value, 1)) {
FatData.CodePageInvariant = FALSE;
} else {
FatData.CodePageInvariant = TRUE;
}
//
// Initialize our global resource and fire up the lookaside lists.
//
ExInitializeResourceLite( &FatData.Resource );
ExInitializeNPagedLookasideList( &FatIrpContextLookasideList,
NULL,
NULL,
POOL_RAISE_IF_ALLOCATION_FAILURE,
sizeof(IRP_CONTEXT),
TAG_IRP_CONTEXT,
MaxDepth );
ExInitializeNPagedLookasideList( &FatNonPagedFcbLookasideList,
NULL,
NULL,
POOL_RAISE_IF_ALLOCATION_FAILURE,
sizeof(NON_PAGED_FCB),
TAG_FCB_NONPAGED,
MaxDepth );
ExInitializeNPagedLookasideList( &FatEResourceLookasideList,
NULL,
NULL,
POOL_RAISE_IF_ALLOCATION_FAILURE,
sizeof(ERESOURCE),
TAG_ERESOURCE,
MaxDepth );
ExInitializeSListHead( &FatCloseContextSList );
ExInitializeFastMutex( &FatCloseQueueMutex );
KeInitializeEvent( &FatReserveEvent, SynchronizationEvent, TRUE );
//
// Register the file system with the I/O system
//
IoRegisterFileSystem(FatDiskFileSystemDeviceObject);
ObReferenceObject (FatDiskFileSystemDeviceObject);
#if __NDAS_FAT__
if (FatCdromFileSystemDeviceObject) {
IoRegisterFileSystem(FatCdromFileSystemDeviceObject);
ObReferenceObject (FatCdromFileSystemDeviceObject);
}
#else
IoRegisterFileSystem(FatCdromFileSystemDeviceObject);
ObReferenceObject (FatCdromFileSystemDeviceObject);
#endif
#if __NDAS_FAT__
FatData.FileSystemRegistered = TRUE;
RtlInitEmptyUnicodeString( &FatData.Root,
FatData.RootBuffer,
sizeof(FatData.RootBuffer) );
RtlInitUnicodeString( &tempUnicode, L"\\" );
RtlCopyUnicodeString( &FatData.Root, &tempUnicode );
RtlInitEmptyUnicodeString( &FatData.MountMgrRemoteDatabase,
FatData.MountMgrRemoteDatabaseBuffer,
sizeof(FatData.MountMgrRemoteDatabaseBuffer) );
RtlInitUnicodeString( &tempUnicode, L"\\:$MountMgrRemoteDatabase" );
RtlCopyUnicodeString( &FatData.MountMgrRemoteDatabase, &tempUnicode );
RtlInitEmptyUnicodeString( &FatData.ExtendReparse,
FatData.ExtendReparseBuffer,
sizeof(FatData.ExtendReparseBuffer) );
RtlInitUnicodeString( &tempUnicode, L"\\$Extend\\$Reparse:$R:$INDEX_ALLOCATION" );
RtlCopyUnicodeString( &FatData.ExtendReparse, &tempUnicode );
RtlInitEmptyUnicodeString( &FatData.MountPointManagerRemoteDatabase,
FatData.MountPointManagerRemoteDatabaseBuffer,
sizeof(FatData.MountPointManagerRemoteDatabaseBuffer) );
RtlInitUnicodeString( &tempUnicode, L"\\System Volume Information\\MountPointManagerRemoteDatabase" );
RtlCopyUnicodeString( &FatData.MountPointManagerRemoteDatabase, &tempUnicode );
#endif
//
// Find out if we are running an a FujitsuFMR machine.
//
FatData.FujitsuFMR = FatIsFujitsuFMR();
#if __NDAS_FAT__
//
// Check to see if new kernel is present to decide if we want
// to support advance fcb headers
//
RtlInitUnicodeString( &UnicodeString, L"FsRtlTeardownPerStreamContexts" );
FatFsRtlTeardownPerStreamContexts = MmGetSystemRoutineAddress( &UnicodeString );
#endif
//
// And return to our caller
//
return( STATUS_SUCCESS );
}
NTSTATUS
DriverEntry(
__in PDRIVER_OBJECT DriverObject,
__in PUNICODE_STRING RegistryPath
)
/*++
Routine Description:
This routine gets called by the system to initialize the driver.
Arguments:
DriverObject - the system supplied driver object.
RegistryPath - the system supplied registry path for this driver.
Return Value:
NTSTATUS
--*/
{
PDEVICE_OBJECT deviceObject;
NTSTATUS status;
PFAST_IO_DISPATCH fastIoDispatch;
UNICODE_STRING functionName;
FS_FILTER_CALLBACKS filterCallbacks;
PDOKAN_GLOBAL dokanGlobal = NULL;
DDbgPrint("==> DriverEntry ver.%x, %s %s\n", DOKAN_DRIVER_VERSION, __DATE__, __TIME__);
status = DokanCreateGlobalDiskDevice(DriverObject, &dokanGlobal);
if (status != STATUS_SUCCESS) {
return status;
}
//
// Set up dispatch entry points for the driver.
//
DriverObject->DriverUnload = DokanUnload;
DriverObject->MajorFunction[IRP_MJ_CREATE] = DokanDispatchCreate;
DriverObject->MajorFunction[IRP_MJ_CLOSE] = DokanDispatchClose;
DriverObject->MajorFunction[IRP_MJ_CLEANUP] = DokanDispatchCleanup;
DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = DokanDispatchDeviceControl;
DriverObject->MajorFunction[IRP_MJ_FILE_SYSTEM_CONTROL] = DokanDispatchFileSystemControl;
DriverObject->MajorFunction[IRP_MJ_DIRECTORY_CONTROL] = DokanDispatchDirectoryControl;
DriverObject->MajorFunction[IRP_MJ_QUERY_INFORMATION] = DokanDispatchQueryInformation;
DriverObject->MajorFunction[IRP_MJ_SET_INFORMATION] = DokanDispatchSetInformation;
DriverObject->MajorFunction[IRP_MJ_QUERY_VOLUME_INFORMATION] = DokanDispatchQueryVolumeInformation;
DriverObject->MajorFunction[IRP_MJ_SET_VOLUME_INFORMATION] = DokanDispatchSetVolumeInformation;
DriverObject->MajorFunction[IRP_MJ_READ] = DokanDispatchRead;
DriverObject->MajorFunction[IRP_MJ_WRITE] = DokanDispatchWrite;
DriverObject->MajorFunction[IRP_MJ_FLUSH_BUFFERS] = DokanDispatchFlush;
DriverObject->MajorFunction[IRP_MJ_SHUTDOWN] = DokanDispatchShutdown;
DriverObject->MajorFunction[IRP_MJ_PNP] = DokanDispatchPnp;
DriverObject->MajorFunction[IRP_MJ_LOCK_CONTROL] = DokanDispatchLock;
DriverObject->MajorFunction[IRP_MJ_QUERY_SECURITY] = DokanDispatchQuerySecurity;
DriverObject->MajorFunction[IRP_MJ_SET_SECURITY] = DokanDispatchSetSecurity;
fastIoDispatch = ExAllocatePool(sizeof(FAST_IO_DISPATCH));
// TODO: check fastIoDispatch
RtlZeroMemory(fastIoDispatch, sizeof(FAST_IO_DISPATCH));
fastIoDispatch->SizeOfFastIoDispatch = sizeof(FAST_IO_DISPATCH);
fastIoDispatch->FastIoCheckIfPossible = DokanFastIoCheckIfPossible;
//fastIoDispatch->FastIoRead = DokanFastIoRead;
fastIoDispatch->FastIoRead = FsRtlCopyRead;
fastIoDispatch->FastIoWrite = FsRtlCopyWrite;
fastIoDispatch->AcquireFileForNtCreateSection = DokanAcquireForCreateSection;
fastIoDispatch->ReleaseFileForNtCreateSection = DokanReleaseForCreateSection;
fastIoDispatch->MdlRead = FsRtlMdlReadDev;
fastIoDispatch->MdlReadComplete = FsRtlMdlReadCompleteDev;
fastIoDispatch->PrepareMdlWrite = FsRtlPrepareMdlWriteDev;
fastIoDispatch->MdlWriteComplete = FsRtlMdlWriteCompleteDev;
DriverObject->FastIoDispatch = fastIoDispatch;
ExInitializeNPagedLookasideList(
&DokanIrpEntryLookasideList, NULL, NULL, 0, sizeof(IRP_ENTRY), TAG, 0);
#if _WIN32_WINNT < 0x0501
RtlInitUnicodeString(&functionName, L"FsRtlTeardownPerStreamContexts");
DokanFsRtlTeardownPerStreamContexts = MmGetSystemRoutineAddress(&functionName);
#endif
RtlZeroMemory(&filterCallbacks, sizeof(FS_FILTER_CALLBACKS));
// only be used by filter driver?
filterCallbacks.SizeOfFsFilterCallbacks = sizeof(FS_FILTER_CALLBACKS);
filterCallbacks.PreAcquireForSectionSynchronization = DokanFilterCallbackAcquireForCreateSection;
status = FsRtlRegisterFileSystemFilterCallbacks(DriverObject, &filterCallbacks);
if (!NT_SUCCESS(status)) {
IoDeleteDevice(dokanGlobal->DeviceObject);
DDbgPrint(" FsRtlRegisterFileSystemFilterCallbacks returned 0x%x\n", status);
return status;
}
DDbgPrint("<== DriverEntry\n");
return( status );
}
NTSTATUS
DriverEntry(
_In_ PDRIVER_OBJECT DriverObject,
_In_ PUNICODE_STRING RegistryPath
)
/*++
Routine Description:
This is the initialization routine for the Fat file system
device driver. This routine creates the device object for the FileSystem
device and performs all other driver initialization.
Arguments:
DriverObject - Pointer to driver object created by the system.
Return Value:
NTSTATUS - The function value is the final status from the initialization
operation.
--*/
{
USHORT MaxDepth;
NTSTATUS Status;
UNICODE_STRING UnicodeString;
FS_FILTER_CALLBACKS FilterCallbacks;
UNICODE_STRING ValueName;
ULONG Value;
UNREFERENCED_PARAMETER( RegistryPath );
//
// Create the device object for disks. To avoid problems with filters who
// know this name, we must keep it.
//
RtlInitUnicodeString( &UnicodeString, L"\\Fat" );
Status = IoCreateDevice( DriverObject,
0,
&UnicodeString,
FILE_DEVICE_DISK_FILE_SYSTEM,
0,
FALSE,
&FatDiskFileSystemDeviceObject );
if (!NT_SUCCESS( Status )) {
return Status;
}
//
// Create the device object for "cdroms".
//
RtlInitUnicodeString( &UnicodeString, L"\\FatCdrom" );
Status = IoCreateDevice( DriverObject,
0,
&UnicodeString,
FILE_DEVICE_CD_ROM_FILE_SYSTEM,
0,
FALSE,
&FatCdromFileSystemDeviceObject );
if (!NT_SUCCESS( Status )) {
IoDeleteDevice( FatDiskFileSystemDeviceObject);
return Status;
}
#pragma prefast( push )
#pragma prefast( disable:28155, "these are all correct" )
#pragma prefast( disable:28169, "these are all correct" )
#pragma prefast( disable:28175, "this is a filesystem, touching FastIoDispatch is allowed" )
DriverObject->DriverUnload = FatUnload;
//
// Note that because of the way data caching is done, we set neither
// the Direct I/O or Buffered I/O bit in DeviceObject->Flags. If
// data is not in the cache, or the request is not buffered, we may,
// set up for Direct I/O by hand.
//
//
// Initialize the driver object with this driver's entry points.
//
DriverObject->MajorFunction[IRP_MJ_CREATE] = (PDRIVER_DISPATCH)FatFsdCreate;
DriverObject->MajorFunction[IRP_MJ_CLOSE] = (PDRIVER_DISPATCH)FatFsdClose;
DriverObject->MajorFunction[IRP_MJ_READ] = (PDRIVER_DISPATCH)FatFsdRead;
DriverObject->MajorFunction[IRP_MJ_WRITE] = (PDRIVER_DISPATCH)FatFsdWrite;
DriverObject->MajorFunction[IRP_MJ_QUERY_INFORMATION] = (PDRIVER_DISPATCH)FatFsdQueryInformation;
DriverObject->MajorFunction[IRP_MJ_SET_INFORMATION] = (PDRIVER_DISPATCH)FatFsdSetInformation;
DriverObject->MajorFunction[IRP_MJ_QUERY_EA] = (PDRIVER_DISPATCH)FatFsdQueryEa;
DriverObject->MajorFunction[IRP_MJ_SET_EA] = (PDRIVER_DISPATCH)FatFsdSetEa;
DriverObject->MajorFunction[IRP_MJ_FLUSH_BUFFERS] = (PDRIVER_DISPATCH)FatFsdFlushBuffers;
DriverObject->MajorFunction[IRP_MJ_QUERY_VOLUME_INFORMATION] = (PDRIVER_DISPATCH)FatFsdQueryVolumeInformation;
DriverObject->MajorFunction[IRP_MJ_SET_VOLUME_INFORMATION] = (PDRIVER_DISPATCH)FatFsdSetVolumeInformation;
DriverObject->MajorFunction[IRP_MJ_CLEANUP] = (PDRIVER_DISPATCH)FatFsdCleanup;
DriverObject->MajorFunction[IRP_MJ_DIRECTORY_CONTROL] = (PDRIVER_DISPATCH)FatFsdDirectoryControl;
DriverObject->MajorFunction[IRP_MJ_FILE_SYSTEM_CONTROL] = (PDRIVER_DISPATCH)FatFsdFileSystemControl;
DriverObject->MajorFunction[IRP_MJ_LOCK_CONTROL] = (PDRIVER_DISPATCH)FatFsdLockControl;
DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = (PDRIVER_DISPATCH)FatFsdDeviceControl;
DriverObject->MajorFunction[IRP_MJ_SHUTDOWN] = (PDRIVER_DISPATCH)FatFsdShutdown;
DriverObject->MajorFunction[IRP_MJ_PNP] = (PDRIVER_DISPATCH)FatFsdPnp;
DriverObject->FastIoDispatch = &FatFastIoDispatch;
RtlZeroMemory(&FatFastIoDispatch, sizeof(FatFastIoDispatch));
FatFastIoDispatch.SizeOfFastIoDispatch = sizeof(FAST_IO_DISPATCH);
FatFastIoDispatch.FastIoCheckIfPossible = FatFastIoCheckIfPossible; // CheckForFastIo
FatFastIoDispatch.FastIoRead = FsRtlCopyRead; // Read
FatFastIoDispatch.FastIoWrite = FsRtlCopyWrite; // Write
FatFastIoDispatch.FastIoQueryBasicInfo = FatFastQueryBasicInfo; // QueryBasicInfo
FatFastIoDispatch.FastIoQueryStandardInfo = FatFastQueryStdInfo; // QueryStandardInfo
FatFastIoDispatch.FastIoLock = FatFastLock; // Lock
FatFastIoDispatch.FastIoUnlockSingle = FatFastUnlockSingle; // UnlockSingle
FatFastIoDispatch.FastIoUnlockAll = FatFastUnlockAll; // UnlockAll
FatFastIoDispatch.FastIoUnlockAllByKey = FatFastUnlockAllByKey; // UnlockAllByKey
FatFastIoDispatch.FastIoQueryNetworkOpenInfo = FatFastQueryNetworkOpenInfo;
FatFastIoDispatch.AcquireForCcFlush = FatAcquireForCcFlush;
FatFastIoDispatch.ReleaseForCcFlush = FatReleaseForCcFlush;
FatFastIoDispatch.MdlRead = FsRtlMdlReadDev;
FatFastIoDispatch.MdlReadComplete = FsRtlMdlReadCompleteDev;
FatFastIoDispatch.PrepareMdlWrite = FsRtlPrepareMdlWriteDev;
FatFastIoDispatch.MdlWriteComplete = FsRtlMdlWriteCompleteDev;
#pragma prefast( pop )
//
// Initialize the filter callbacks we use.
//
RtlZeroMemory( &FilterCallbacks,
sizeof(FS_FILTER_CALLBACKS) );
FilterCallbacks.SizeOfFsFilterCallbacks = sizeof(FS_FILTER_CALLBACKS);
FilterCallbacks.PreAcquireForSectionSynchronization = FatFilterCallbackAcquireForCreateSection;
Status = FsRtlRegisterFileSystemFilterCallbacks( DriverObject,
&FilterCallbacks );
if (!NT_SUCCESS( Status )) {
IoDeleteDevice( FatDiskFileSystemDeviceObject );
IoDeleteDevice( FatCdromFileSystemDeviceObject );
return Status;
}
//
// Initialize the global data structures
//
//
// The FatData record
//
RtlZeroMemory( &FatData, sizeof(FAT_DATA));
FatData.NodeTypeCode = FAT_NTC_DATA_HEADER;
FatData.NodeByteSize = sizeof(FAT_DATA);
InitializeListHead(&FatData.VcbQueue);
FatData.DriverObject = DriverObject;
FatData.DiskFileSystemDeviceObject = FatDiskFileSystemDeviceObject;
FatData.CdromFileSystemDeviceObject = FatCdromFileSystemDeviceObject;
//
// This list head keeps track of closes yet to be done.
//
InitializeListHead( &FatData.AsyncCloseList );
InitializeListHead( &FatData.DelayedCloseList );
FatData.FatCloseItem = IoAllocateWorkItem( FatDiskFileSystemDeviceObject);
if (FatData.FatCloseItem == NULL) {
IoDeleteDevice (FatDiskFileSystemDeviceObject);
IoDeleteDevice (FatCdromFileSystemDeviceObject);
return STATUS_INSUFFICIENT_RESOURCES;
}
//
// Allocate the zero page
//
FatData.ZeroPage = ExAllocatePoolWithTag( NonPagedPoolNx, PAGE_SIZE, 'ZtaF' );
if (FatData.ZeroPage == NULL) {
IoDeleteDevice (FatDiskFileSystemDeviceObject);
IoDeleteDevice (FatCdromFileSystemDeviceObject);
return STATUS_INSUFFICIENT_RESOURCES;
}
RtlZeroMemory( FatData.ZeroPage, PAGE_SIZE );
//
// Now initialize our general purpose spinlock (gag) and figure out how
// deep and wide we want our delayed lists (along with fooling ourselves
// about the lookaside depths).
//
KeInitializeSpinLock( &FatData.GeneralSpinLock );
switch ( MmQuerySystemSize() ) {
case MmSmallSystem:
MaxDepth = 4;
FatMaxDelayedCloseCount = FAT_MAX_DELAYED_CLOSES;
break;
case MmMediumSystem:
MaxDepth = 8;
FatMaxDelayedCloseCount = 4 * FAT_MAX_DELAYED_CLOSES;
break;
case MmLargeSystem:
default:
MaxDepth = 16;
FatMaxDelayedCloseCount = 16 * FAT_MAX_DELAYED_CLOSES;
break;
}
//
// Initialize the cache manager callback routines
//
FatData.CacheManagerCallbacks.AcquireForLazyWrite = &FatAcquireFcbForLazyWrite;
FatData.CacheManagerCallbacks.ReleaseFromLazyWrite = &FatReleaseFcbFromLazyWrite;
FatData.CacheManagerCallbacks.AcquireForReadAhead = &FatAcquireFcbForReadAhead;
FatData.CacheManagerCallbacks.ReleaseFromReadAhead = &FatReleaseFcbFromReadAhead;
FatData.CacheManagerNoOpCallbacks.AcquireForLazyWrite = &FatNoOpAcquire;
FatData.CacheManagerNoOpCallbacks.ReleaseFromLazyWrite = &FatNoOpRelease;
FatData.CacheManagerNoOpCallbacks.AcquireForReadAhead = &FatNoOpAcquire;
FatData.CacheManagerNoOpCallbacks.ReleaseFromReadAhead = &FatNoOpRelease;
//
// Set up global pointer to our process.
//
FatData.OurProcess = PsGetCurrentProcess();
//
// Setup the number of processors we support for statistics as the current number
// running.
//
#if (NTDDI_VERSION >= NTDDI_VISTA)
FatData.NumberProcessors = KeQueryActiveProcessorCount( NULL );
#else
FatData.NumberProcessors = KeNumberProcessors;
#endif
//
// Read the registry to determine if we are in ChicagoMode.
//
ValueName.Buffer = COMPATIBILITY_MODE_VALUE_NAME;
ValueName.Length = sizeof(COMPATIBILITY_MODE_VALUE_NAME) - sizeof(WCHAR);
ValueName.MaximumLength = sizeof(COMPATIBILITY_MODE_VALUE_NAME);
Status = FatGetCompatibilityModeValue( &ValueName, &Value );
if (NT_SUCCESS(Status) && FlagOn(Value, 1)) {
FatData.ChicagoMode = FALSE;
} else {
FatData.ChicagoMode = TRUE;
}
//
// Read the registry to determine if we are going to generate LFNs
// for valid 8.3 names with extended characters.
//
ValueName.Buffer = CODE_PAGE_INVARIANCE_VALUE_NAME;
ValueName.Length = sizeof(CODE_PAGE_INVARIANCE_VALUE_NAME) - sizeof(WCHAR);
ValueName.MaximumLength = sizeof(CODE_PAGE_INVARIANCE_VALUE_NAME);
Status = FatGetCompatibilityModeValue( &ValueName, &Value );
if (NT_SUCCESS(Status) && FlagOn(Value, 1)) {
FatData.CodePageInvariant = FALSE;
} else {
FatData.CodePageInvariant = TRUE;
}
//
// Initialize our global resource and fire up the lookaside lists.
//
ExInitializeResourceLite( &FatData.Resource );
ExInitializeNPagedLookasideList( &FatIrpContextLookasideList,
NULL,
NULL,
POOL_NX_ALLOCATION | POOL_RAISE_IF_ALLOCATION_FAILURE,
sizeof(IRP_CONTEXT),
TAG_IRP_CONTEXT,
MaxDepth );
ExInitializeNPagedLookasideList( &FatNonPagedFcbLookasideList,
NULL,
NULL,
POOL_NX_ALLOCATION | POOL_RAISE_IF_ALLOCATION_FAILURE,
sizeof(NON_PAGED_FCB),
TAG_FCB_NONPAGED,
MaxDepth );
ExInitializeNPagedLookasideList( &FatEResourceLookasideList,
NULL,
NULL,
POOL_NX_ALLOCATION | POOL_RAISE_IF_ALLOCATION_FAILURE,
sizeof(ERESOURCE),
TAG_ERESOURCE,
MaxDepth );
ExInitializeSListHead( &FatCloseContextSList );
ExInitializeFastMutex( &FatCloseQueueMutex );
KeInitializeEvent( &FatReserveEvent, SynchronizationEvent, TRUE );
//
// Register the file system with the I/O system
//
IoRegisterFileSystem(FatDiskFileSystemDeviceObject);
ObReferenceObject (FatDiskFileSystemDeviceObject);
IoRegisterFileSystem(FatCdromFileSystemDeviceObject);
ObReferenceObject (FatCdromFileSystemDeviceObject);
//
// Find out if we are running an a FujitsuFMR machine.
//
FatData.FujitsuFMR = FatIsFujitsuFMR();
#if (NTDDI_VERSION >= NTDDI_WIN8)
//
// Find out global disk accounting state, cache the result
//
FatDiskAccountingEnabled = PsIsDiskCountersEnabled();
#endif
//
// And return to our caller
//
return( STATUS_SUCCESS );
}
NTSTATUS
DriverEntry(
__in PDRIVER_OBJECT DriverObject,
__in PUNICODE_STRING RegistryPath
)
/*++
Routine Description:
This is the initialization routine for the Cdrom file system
device driver. This routine creates the device object for the FileSystem
device and performs all other driver initialization.
Arguments:
DriverObject - Pointer to driver object created by the system.
Return Value:
NTSTATUS - The function value is the final status from the initialization
operation.
--*/
{
NTSTATUS Status;
UNICODE_STRING UnicodeString;
PDEVICE_OBJECT CdfsFileSystemDeviceObject;
FS_FILTER_CALLBACKS FilterCallbacks;
UNREFERENCED_PARAMETER( RegistryPath );
//
// Create the device object.
//
RtlInitUnicodeString( &UnicodeString, L"\\Cdfs" );
Status = IoCreateDevice( DriverObject,
0,
&UnicodeString,
FILE_DEVICE_CD_ROM_FILE_SYSTEM,
0,
FALSE,
&CdfsFileSystemDeviceObject );
if (!NT_SUCCESS( Status )) {
return Status;
}
#pragma prefast(push)
#pragma prefast(disable: 28155, "the dispatch routine has the correct type, prefast is just being paranoid.")
#pragma prefast(disable: 28168, "the dispatch routine has the correct type, prefast is just being paranoid.")
#pragma prefast(disable: 28169, "the dispatch routine has the correct type, prefast is just being paranoid.")
#pragma prefast(disable: 28175, "we're allowed to change these.")
DriverObject->DriverUnload = CdUnload;
//
// Note that because of the way data caching is done, we set neither
// the Direct I/O or Buffered I/O bit in DeviceObject->Flags. If
// data is not in the cache, or the request is not buffered, we may,
// set up for Direct I/O by hand.
//
//
// Initialize the driver object with this driver's entry points.
//
// NOTE - Each entry in the dispatch table must have an entry in
// the Fsp/Fsd dispatch switch statements.
//
DriverObject->MajorFunction[IRP_MJ_CREATE] =
DriverObject->MajorFunction[IRP_MJ_CLOSE] =
DriverObject->MajorFunction[IRP_MJ_READ] =
DriverObject->MajorFunction[IRP_MJ_WRITE] =
DriverObject->MajorFunction[IRP_MJ_QUERY_INFORMATION] =
DriverObject->MajorFunction[IRP_MJ_SET_INFORMATION] =
DriverObject->MajorFunction[IRP_MJ_QUERY_VOLUME_INFORMATION]=
DriverObject->MajorFunction[IRP_MJ_DIRECTORY_CONTROL] =
DriverObject->MajorFunction[IRP_MJ_FILE_SYSTEM_CONTROL] =
DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] =
DriverObject->MajorFunction[IRP_MJ_LOCK_CONTROL] =
DriverObject->MajorFunction[IRP_MJ_CLEANUP] =
DriverObject->MajorFunction[IRP_MJ_PNP] =
DriverObject->MajorFunction[IRP_MJ_SHUTDOWN] = (PDRIVER_DISPATCH) CdFsdDispatch;
#pragma prefast(pop)
#pragma prefast(suppress: 28175, "this is a file system driver, we're allowed to touch FastIoDispatch.")
DriverObject->FastIoDispatch = &CdFastIoDispatch;
//
// Initialize the filter callbacks we use.
//
RtlZeroMemory( &FilterCallbacks,
sizeof(FS_FILTER_CALLBACKS) );
FilterCallbacks.SizeOfFsFilterCallbacks = sizeof(FS_FILTER_CALLBACKS);
FilterCallbacks.PreAcquireForSectionSynchronization = CdFilterCallbackAcquireForCreateSection;
Status = FsRtlRegisterFileSystemFilterCallbacks( DriverObject,
&FilterCallbacks );
if (!NT_SUCCESS( Status )) {
IoDeleteDevice( CdfsFileSystemDeviceObject );
return Status;
}
//
// Initialize the global data structures
//
Status = CdInitializeGlobalData( DriverObject, CdfsFileSystemDeviceObject );
if (!NT_SUCCESS (Status)) {
IoDeleteDevice (CdfsFileSystemDeviceObject);
return Status;
}
//
// Register the file system as low priority with the I/O system. This will cause
// CDFS to receive mount requests after a) other filesystems currently registered
// and b) other normal priority filesystems that may be registered later.
//
CdfsFileSystemDeviceObject->Flags |= DO_LOW_PRIORITY_FILESYSTEM;
IoRegisterFileSystem( CdfsFileSystemDeviceObject );
ObReferenceObject (CdfsFileSystemDeviceObject);
//
// And return to our caller
//
return( STATUS_SUCCESS );
}
NTSTATUS
DriverEntry(__in PDRIVER_OBJECT DriverObject, __in PUNICODE_STRING RegistryPath)
/*++
Routine Description:
This routine gets called by the system to initialize the driver.
Arguments:
DriverObject - the system supplied driver object.
RegistryPath - the system supplied registry path for this driver.
Return Value:
NTSTATUS
--*/
{
NTSTATUS status;
PFAST_IO_DISPATCH fastIoDispatch;
FS_FILTER_CALLBACKS filterCallbacks;
PDOKAN_GLOBAL dokanGlobal = NULL;
UNREFERENCED_PARAMETER(RegistryPath);
DDbgPrint("==> DriverEntry ver.%x, %s %s\n", DOKAN_DRIVER_VERSION, __DATE__,
__TIME__);
status = DokanCreateGlobalDiskDevice(DriverObject, &dokanGlobal);
if (NT_ERROR(status)) {
return status;
}
//
// Set up dispatch entry points for the driver.
//
DriverObject->DriverUnload = DokanUnload;
DriverObject->MajorFunction[IRP_MJ_CREATE] = DokanBuildRequest;
DriverObject->MajorFunction[IRP_MJ_CLOSE] = DokanBuildRequest;
DriverObject->MajorFunction[IRP_MJ_CLEANUP] = DokanBuildRequest;
DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = DokanBuildRequest;
DriverObject->MajorFunction[IRP_MJ_FILE_SYSTEM_CONTROL] = DokanBuildRequest;
DriverObject->MajorFunction[IRP_MJ_DIRECTORY_CONTROL] = DokanBuildRequest;
DriverObject->MajorFunction[IRP_MJ_QUERY_INFORMATION] = DokanBuildRequest;
DriverObject->MajorFunction[IRP_MJ_SET_INFORMATION] = DokanBuildRequest;
DriverObject->MajorFunction[IRP_MJ_QUERY_VOLUME_INFORMATION] =
DokanBuildRequest;
DriverObject->MajorFunction[IRP_MJ_SET_VOLUME_INFORMATION] =
DokanBuildRequest;
DriverObject->MajorFunction[IRP_MJ_READ] = DokanBuildRequest;
DriverObject->MajorFunction[IRP_MJ_WRITE] = DokanBuildRequest;
DriverObject->MajorFunction[IRP_MJ_FLUSH_BUFFERS] = DokanBuildRequest;
DriverObject->MajorFunction[IRP_MJ_SHUTDOWN] = DokanBuildRequest;
DriverObject->MajorFunction[IRP_MJ_PNP] = DokanBuildRequest;
DriverObject->MajorFunction[IRP_MJ_LOCK_CONTROL] = DokanBuildRequest;
DriverObject->MajorFunction[IRP_MJ_QUERY_SECURITY] = DokanBuildRequest;
DriverObject->MajorFunction[IRP_MJ_SET_SECURITY] = DokanBuildRequest;
fastIoDispatch = ExAllocatePool(sizeof(FAST_IO_DISPATCH));
if (!fastIoDispatch) {
CleanupGlobalDiskDevice(dokanGlobal);
DDbgPrint(" ExAllocatePool failed");
return STATUS_INSUFFICIENT_RESOURCES;
}
RtlZeroMemory(fastIoDispatch, sizeof(FAST_IO_DISPATCH));
fastIoDispatch->SizeOfFastIoDispatch = sizeof(FAST_IO_DISPATCH);
fastIoDispatch->FastIoCheckIfPossible = DokanFastIoCheckIfPossible;
// fastIoDispatch->FastIoRead = DokanFastIoRead;
fastIoDispatch->FastIoRead = FsRtlCopyRead;
fastIoDispatch->FastIoWrite = FsRtlCopyWrite;
fastIoDispatch->AcquireFileForNtCreateSection = DokanAcquireForCreateSection;
fastIoDispatch->ReleaseFileForNtCreateSection = DokanReleaseForCreateSection;
fastIoDispatch->MdlRead = FsRtlMdlReadDev;
fastIoDispatch->MdlReadComplete = FsRtlMdlReadCompleteDev;
fastIoDispatch->PrepareMdlWrite = FsRtlPrepareMdlWriteDev;
fastIoDispatch->MdlWriteComplete = FsRtlMdlWriteCompleteDev;
DriverObject->FastIoDispatch = fastIoDispatch;
#if _WIN32_WINNT >= _WIN32_WINNT_WIN8
ExInitializeNPagedLookasideList(&DokanIrpEntryLookasideList, NULL, NULL,
POOL_NX_ALLOCATION, sizeof(IRP_ENTRY), TAG,
0);
#else
ExInitializeNPagedLookasideList(&DokanIrpEntryLookasideList, NULL, NULL, 0,
sizeof(IRP_ENTRY), TAG, 0);
#endif
#if _WIN32_WINNT < 0x0501
RtlInitUnicodeString(&functionName, L"FsRtlTeardownPerStreamContexts");
DokanFsRtlTeardownPerStreamContexts =
MmGetSystemRoutineAddress(&functionName);
#endif
RtlZeroMemory(&filterCallbacks, sizeof(FS_FILTER_CALLBACKS));
// only be used by filter driver?
filterCallbacks.SizeOfFsFilterCallbacks = sizeof(FS_FILTER_CALLBACKS);
filterCallbacks.PreAcquireForSectionSynchronization =
DokanFilterCallbackAcquireForCreateSection;
status =
FsRtlRegisterFileSystemFilterCallbacks(DriverObject, &filterCallbacks);
if (!NT_SUCCESS(status)) {
CleanupGlobalDiskDevice(dokanGlobal);
ExFreePool(DriverObject->FastIoDispatch);
DDbgPrint(" FsRtlRegisterFileSystemFilterCallbacks returned 0x%x\n",
status);
return status;
}
if (!DokanLookasideCreate(&g_DokanCCBLookasideList, sizeof(DokanCCB))) {
DDbgPrint(" DokanLookasideCreate g_DokanCCBLookasideList failed");
CleanupGlobalDiskDevice(dokanGlobal);
ExFreePool(DriverObject->FastIoDispatch);
return STATUS_INSUFFICIENT_RESOURCES;
}
if (!DokanLookasideCreate(&g_DokanFCBLookasideList, sizeof(DokanFCB))) {
DDbgPrint(" DokanLookasideCreate g_DokanFCBLookasideList failed");
CleanupGlobalDiskDevice(dokanGlobal);
ExFreePool(DriverObject->FastIoDispatch);
ExDeleteLookasideListEx(&g_DokanCCBLookasideList);
return STATUS_INSUFFICIENT_RESOURCES;
}
if (!DokanLookasideCreate(&g_DokanEResourceLookasideList,
sizeof(ERESOURCE))) {
DDbgPrint(" DokanLookasideCreate g_DokanEResourceLookasideList failed");
CleanupGlobalDiskDevice(dokanGlobal);
ExFreePool(DriverObject->FastIoDispatch);
ExDeleteLookasideListEx(&g_DokanCCBLookasideList);
ExDeleteLookasideListEx(&g_DokanFCBLookasideList);
return STATUS_INSUFFICIENT_RESOURCES;
}
DDbgPrint("<== DriverEntry\n");
return (status);
}
