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[NPFS]: Add support for a few more volume information classes, and disable APCs like an FS should.

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svn path=/trunk/; revision=59914
This commit is contained in:
Alex Ionescu 2013-08-31 07:07:43 +00:00
parent 084a679a6b
commit 675f4b0d71
1 changed files with 77 additions and 35 deletions
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112
reactos/drivers/filesystems/npfs/volume.c
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@ -15,73 +15,91 @@
/* FUNCTIONS ****************************************************************/
static NTSTATUS
NpfsQueryFsDeviceInformation(PFILE_FS_DEVICE_INFORMATION FsDeviceInfo,
PULONG BufferLength)
NTSTATUS
NTAPI
NpQueryFsDeviceInformation(IN PFILE_FS_DEVICE_INFORMATION FsDeviceInfo,
OUT PULONG BufferLength)
{
PAGED_CODE();
DPRINT("NpfsQueryFsDeviceInformation()\n");
DPRINT("FsDeviceInfo = %p\n", FsDeviceInfo);
if (*BufferLength < sizeof(FILE_FS_DEVICE_INFORMATION))
{
*BufferLength = sizeof(FILE_FS_DEVICE_INFORMATION);
return STATUS_BUFFER_OVERFLOW;
}
FsDeviceInfo->DeviceType = FILE_DEVICE_NAMED_PIPE;
FsDeviceInfo->Characteristics = 0;
*BufferLength = sizeof(FILE_FS_DEVICE_INFORMATION);
*BufferLength -= sizeof(FILE_FS_DEVICE_INFORMATION);
DPRINT("NpfsQueryFsDeviceInformation() finished.\n");
return STATUS_SUCCESS;
}
static NTSTATUS
NpfsQueryFsAttributeInformation(PFILE_FS_ATTRIBUTE_INFORMATION FsAttributeInfo,
PULONG BufferLength)
NTSTATUS
NTAPI
NpQueryFsFullSizeInfo(IN PFILE_FS_FULL_SIZE_INFORMATION FsSizeInfo,
OUT PULONG BufferSize)
{
RtlZeroMemory(FsSizeInfo, sizeof(FILE_FS_FULL_SIZE_INFORMATION));
*BufferSize -= sizeof(FILE_FS_FULL_SIZE_INFORMATION);
return STATUS_SUCCESS;
}
NTSTATUS
NTAPI
NpQueryFsSizeInfo(IN PFILE_FS_SIZE_INFORMATION FsSizeInfo,
OUT PULONG BufferSize)
{
FsSizeInfo->TotalAllocationUnits.LowPart = 0;
FsSizeInfo->TotalAllocationUnits.HighPart = 0;
FsSizeInfo->AvailableAllocationUnits.LowPart = 0;
FsSizeInfo->AvailableAllocationUnits.HighPart = 0;
FsSizeInfo->SectorsPerAllocationUnit = 1;
FsSizeInfo->BytesPerSector = 1;
*BufferSize -= sizeof(FILE_FS_SIZE_INFORMATION);
return STATUS_SUCCESS;
}
NTSTATUS
NTAPI
NpQueryFsAttributeInformation(IN PFILE_FS_ATTRIBUTE_INFORMATION FsAttributeInfo,
OUT PULONG BufferLength)
{
PAGED_CODE();
DPRINT("NpfsQueryFsAttributeInformation() called.\n");
DPRINT("FsAttributeInfo = %p\n", FsAttributeInfo);
if (*BufferLength < sizeof(FILE_FS_ATTRIBUTE_INFORMATION) + 8)
{
*BufferLength = (sizeof(FILE_FS_ATTRIBUTE_INFORMATION) + 8);
*BufferLength = 0;
return STATUS_BUFFER_OVERFLOW;
}
FsAttributeInfo->FileSystemAttributes = FILE_CASE_PRESERVED_NAMES;
FsAttributeInfo->MaximumComponentNameLength = 255;
FsAttributeInfo->MaximumComponentNameLength = -1;
FsAttributeInfo->FileSystemNameLength = 8;
wcscpy(FsAttributeInfo->FileSystemName,
L"NPFS");
wcscpy(FsAttributeInfo->FileSystemName, L"NPFS");
DPRINT("NpfsQueryFsAttributeInformation() finished.\n");
*BufferLength = (sizeof(FILE_FS_ATTRIBUTE_INFORMATION) + 8);
*BufferLength -= (sizeof(FILE_FS_ATTRIBUTE_INFORMATION) + 8);
return STATUS_SUCCESS;
}
NTSTATUS NTAPI
NpfsQueryVolumeInformation(PDEVICE_OBJECT DeviceObject,
PIRP Irp)
NTSTATUS
NTAPI
NpCommonQueryVolumeInformation(IN PIRP Irp)
{
PIO_STACK_LOCATION Stack;
FS_INFORMATION_CLASS FsInformationClass;
NTSTATUS Status = STATUS_SUCCESS;
PVOID SystemBuffer;
ULONG BufferLength;
/* PRECONDITION */
ASSERT(DeviceObject != NULL);
ASSERT(Irp != NULL);
DPRINT("NpfsQueryVolumeInformation(DeviceObject %p, Irp %p)\n",
DeviceObject,
Irp);
NTSTATUS Status;
PAGED_CODE();
Stack = IoGetCurrentIrpStackLocation(Irp);
FsInformationClass = Stack->Parameters.QueryVolume.FsInformationClass;
@ -93,25 +111,49 @@ NpfsQueryVolumeInformation(PDEVICE_OBJECT DeviceObject,
switch (FsInformationClass)
{
case FileFsFullSizeInformation:
Status = NpQueryFsFullSizeInfo(SystemBuffer, &BufferLength);
break;
case FileFsSizeInformation:
Status = NpQueryFsSizeInfo(SystemBuffer, &BufferLength);
break;
case FileFsDeviceInformation:
Status = NpfsQueryFsDeviceInformation(SystemBuffer,
&BufferLength);
Status = NpQueryFsDeviceInformation(SystemBuffer, &BufferLength);
break;
case FileFsAttributeInformation:
Status = NpfsQueryFsAttributeInformation(SystemBuffer,
&BufferLength);
Status = NpQueryFsAttributeInformation(SystemBuffer, &BufferLength);
break;
default:
DPRINT1("Query not implemented: %d\n", FsInformationClass);
Status = STATUS_NOT_SUPPORTED;
}
Irp->IoStatus.Status = Status;
Irp->IoStatus.Information = BufferLength;
Irp->IoStatus.Information = Stack->Parameters.QueryVolume.Length - BufferLength;
return Status;
}
IoCompleteRequest(Irp,
IO_NO_INCREMENT);
NTSTATUS
NTAPI
NpfsQueryVolumeInformation(IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp)
{
NTSTATUS Status;
PAGED_CODE();
DPRINT("NpfsQueryVolumeInformation(DeviceObject %p, Irp %p)\n", DeviceObject, Irp);
FsRtlEnterFileSystem();
Status = NpCommonQueryVolumeInformation(Irp);
FsRtlExitFileSystem();
if (Status != STATUS_PENDING)
{
Irp->IoStatus.Status = Status;
IoCompleteRequest(Irp, IO_DISK_INCREMENT);
}
return Status;
}