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[AFD] Respond to FileFsDeviceInformation.

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CORE-13067
This commit is contained in:
Mark Jansen 2018-03-20 22:15:16 +01:00
parent 348381716e
commit 9168226378
1 changed files with 52 additions and 0 deletions
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52
drivers/network/afd/afd/main.c
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@ -847,6 +847,53 @@ AfdDisconnect(PDEVICE_OBJECT DeviceObject, PIRP Irp,
return UnlockAndMaybeComplete( FCB, Status, Irp, 0 );
}
NTSTATUS
AfdQueryFsDeviceInfo(PDEVICE_OBJECT DeviceObject, PFILE_FS_DEVICE_INFORMATION Buffer, PULONG Length)
{
if (*Length >= sizeof(FILE_FS_DEVICE_INFORMATION))
{
Buffer->Characteristics = 0;
Buffer->DeviceType = FILE_DEVICE_NAMED_PIPE;
*Length -= sizeof(FILE_FS_DEVICE_INFORMATION);
return STATUS_SUCCESS;
}
else
{
ASSERT(*Length >= sizeof(FILE_FS_DEVICE_INFORMATION));
return STATUS_INFO_LENGTH_MISMATCH;
}
}
static NTSTATUS NTAPI
AfdQueryVolumeInformation(PDEVICE_OBJECT DeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
{
FS_INFORMATION_CLASS InfoClass;
PVOID Buffer;
ULONG Length;
NTSTATUS Status = STATUS_INVALID_INFO_CLASS;
Buffer = Irp->AssociatedIrp.SystemBuffer;
Length = IrpSp->Parameters.QueryVolume.Length;
InfoClass = IrpSp->Parameters.QueryVolume.FsInformationClass;
switch (InfoClass)
{
case FileFsDeviceInformation:
Status = AfdQueryFsDeviceInfo(DeviceObject, Buffer, &Length);
break;
default:
break;
}
Irp->IoStatus.Status = Status;
Irp->IoStatus.Information = IrpSp->Parameters.QueryVolume.Length - Length;
IoCompleteRequest(Irp, IO_NETWORK_INCREMENT);
return Status;
}
static DRIVER_DISPATCH AfdDispatch;
static NTSTATUS NTAPI
AfdDispatch(PDEVICE_OBJECT DeviceObject, PIRP Irp)
@ -888,6 +935,10 @@ AfdDispatch(PDEVICE_OBJECT DeviceObject, PIRP Irp)
case IRP_MJ_READ:
return AfdConnectedSocketReadData( DeviceObject, Irp, IrpSp, TRUE );
/* query volume info */
case IRP_MJ_QUERY_VOLUME_INFORMATION:
return AfdQueryVolumeInformation(DeviceObject, Irp, IrpSp);
case IRP_MJ_DEVICE_CONTROL:
{
switch( IrpSp->Parameters.DeviceIoControl.IoControlCode ) {
@ -1265,6 +1316,7 @@ DriverEntry(PDRIVER_OBJECT DriverObject, PUNICODE_STRING RegistryPath)
DriverObject->MajorFunction[IRP_MJ_WRITE] = AfdDispatch;
DriverObject->MajorFunction[IRP_MJ_READ] = AfdDispatch;
DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = AfdDispatch;
DriverObject->MajorFunction[IRP_MJ_QUERY_VOLUME_INFORMATION] = AfdDispatch;
DriverObject->DriverUnload = AfdUnload;
Status = IoCreateDevice(DriverObject,