https://git.reactos.org/?p=reactos.git;a=commitdiff;h=9168226378740cf69bbaf18b1568be39db526fb5
commit 9168226378740cf69bbaf18b1568be39db526fb5 Author: Mark Jansen <[email protected]> AuthorDate: Tue Mar 20 22:15:16 2018 +0100 Commit: Mark Jansen <[email protected]> CommitDate: Wed Mar 21 19:22:13 2018 +0100 [AFD] Respond to FileFsDeviceInformation. CORE-13067 --- drivers/network/afd/afd/main.c | 52 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) diff --git a/drivers/network/afd/afd/main.c b/drivers/network/afd/afd/main.c index 8cdfb1a269..8f3886ef5c 100644 --- a/drivers/network/afd/afd/main.c +++ b/drivers/network/afd/afd/main.c @@ -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,
