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[KSECDD]

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Implement IRP_MJ_QUERY_INFORMATION and IRP_MJ_QUERY_VOLUME_INFORMATION

svn path=/trunk/; revision=61755
This commit is contained in:
Timo Kreuzer 2014-01-22 20:52:01 +00:00
parent fcc7d66c11
commit 793f6fe43d
2 changed files with 99 additions and 0 deletions
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97
reactos/drivers/crypto/ksecdd/dispatch.c
View file

@ -16,6 +16,71 @@
/* FUNCTIONS ******************************************************************/
static
NTSTATUS
KsecQueryFileInformation(
PVOID InfoBuffer,
FILE_INFORMATION_CLASS FileInformationClass,
PSIZE_T BufferLength)
{
PFILE_STANDARD_INFORMATION StandardInformation;
/* Only FileStandardInformation is supported */
if (FileInformationClass != FileStandardInformation)
{
return STATUS_INVALID_INFO_CLASS;
}
/* Validate buffer size */
if (*BufferLength >= sizeof(FILE_STANDARD_INFORMATION))
{
*BufferLength = sizeof(FILE_STANDARD_INFORMATION);
return STATUS_INFO_LENGTH_MISMATCH;
}
/* Fill the structure */
StandardInformation = (PFILE_STANDARD_INFORMATION)InfoBuffer;
StandardInformation->AllocationSize.QuadPart = 0;
StandardInformation->EndOfFile.QuadPart = 0;
StandardInformation->NumberOfLinks = 1;
StandardInformation->DeletePending = FALSE;
StandardInformation->Directory = FALSE;
*BufferLength = sizeof(FILE_STANDARD_INFORMATION);
return STATUS_SUCCESS;
}
static
NTSTATUS
KsecQueryVolumeInformation(
PVOID InfoBuffer,
FS_INFORMATION_CLASS FsInformationClass,
PSIZE_T BufferLength)
{
PFILE_FS_DEVICE_INFORMATION DeviceInformation;
/* Only FileFsDeviceInformation is supported */
if (FsInformationClass == FileFsDeviceInformation)
{
return STATUS_INVALID_INFO_CLASS;
}
/* Validate buffer size */
if (*BufferLength < sizeof(FILE_FS_DEVICE_INFORMATION))
{
*BufferLength = sizeof(FILE_FS_DEVICE_INFORMATION);
return STATUS_INFO_LENGTH_MISMATCH;
}
/* Fill the structure */
DeviceInformation = (PFILE_FS_DEVICE_INFORMATION)InfoBuffer;
DeviceInformation->DeviceType = FILE_DEVICE_NULL;
DeviceInformation->Characteristics = 0;
*BufferLength = sizeof(FILE_FS_DEVICE_INFORMATION);
return STATUS_SUCCESS;
}
NTSTATUS
NTAPI
KsecDdDispatch(
@ -25,6 +90,10 @@ KsecDdDispatch(
PIO_STACK_LOCATION IoStackLocation;
ULONG_PTR Information;
NTSTATUS Status;
PVOID Buffer;
SIZE_T OutputLength;
FILE_INFORMATION_CLASS FileInfoClass;
FS_INFORMATION_CLASS FsInfoClass;
IoStackLocation = IoGetCurrentIrpStackLocation(Irp);
@ -52,6 +121,34 @@ KsecDdDispatch(
Information = IoStackLocation->Parameters.Write.Length;
break;
case IRP_MJ_QUERY_INFORMATION:
/* Extract the parameters */
Buffer = Irp->AssociatedIrp.SystemBuffer;
OutputLength = IoStackLocation->Parameters.QueryFile.Length;
FileInfoClass = IoStackLocation->Parameters.QueryFile.FileInformationClass;
/* Call the internal function */
Status = KsecQueryFileInformation(Buffer,
FileInfoClass,
&OutputLength);
Information = OutputLength;
break;
case IRP_MJ_QUERY_VOLUME_INFORMATION:
/* Extract the parameters */
Buffer = Irp->AssociatedIrp.SystemBuffer;
OutputLength = IoStackLocation->Parameters.QueryVolume.Length;
FsInfoClass = IoStackLocation->Parameters.QueryVolume.FsInformationClass;
/* Call the internal function */
Status = KsecQueryVolumeInformation(Buffer,
FsInfoClass,
&OutputLength);
Information = OutputLength;
break;
default:
DPRINT1("Unhandled major function %lu!\n",
IoStackLocation->MajorFunction);

2
reactos/drivers/crypto/ksecdd/ksecdd.c
View file

@ -48,6 +48,8 @@ DriverEntry(
DriverObject->MajorFunction[IRP_MJ_CLOSE] = KsecDdDispatch;
DriverObject->MajorFunction[IRP_MJ_READ] = KsecDdDispatch;
DriverObject->MajorFunction[IRP_MJ_WRITE] = KsecDdDispatch;
DriverObject->MajorFunction[IRP_MJ_QUERY_INFORMATION] = KsecDdDispatch;
DriverObject->MajorFunction[IRP_MJ_QUERY_VOLUME_INFORMATION] = KsecDdDispatch;
return STATUS_SUCCESS;
}