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sys: IRP_MJ_SET_VOLUME_INFORMATION/FileFsLabelInformation

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This commit is contained in:
Bill Zissimopoulos
2016-02-17 10:27:09 -08:00
parent 003e9a6d91
commit 49cf687de3
7 changed files with 272 additions and 10 deletions
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107
src/sys/volinfo.c
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@ -22,6 +22,9 @@ static NTSTATUS FspFsvolQueryFsVolumeInformation(
static NTSTATUS FspFsvolQueryVolumeInformation(
PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
FSP_IOCMPL_DISPATCH FspFsvolQueryVolumeInformationComplete;
static NTSTATUS FspFsvolSetFsLabelInformation(
PDEVICE_OBJECT FsvolDeviceObject, PVOID Buffer, ULONG Length, PULONG PRequestExtraSize,
FSP_FSCTL_TRANSACT_REQ *Request, const FSP_FSCTL_TRANSACT_RSP *Response);
static NTSTATUS FspFsvolSetVolumeInformation(
PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
FSP_IOCMPL_DISPATCH FspFsvolSetVolumeInformationComplete;
@ -36,6 +39,7 @@ FSP_DRIVER_DISPATCH FspSetVolumeInformation;
#pragma alloc_text(PAGE, FspFsvolQueryFsVolumeInformation)
#pragma alloc_text(PAGE, FspFsvolQueryVolumeInformation)
#pragma alloc_text(PAGE, FspFsvolQueryVolumeInformationComplete)
#pragma alloc_text(PAGE, FspFsvolSetFsLabelInformation)
#pragma alloc_text(PAGE, FspFsvolSetVolumeInformation)
#pragma alloc_text(PAGE, FspFsvolSetVolumeInformationComplete)
#pragma alloc_text(PAGE, FspQueryVolumeInformation)
@ -293,12 +297,83 @@ NTSTATUS FspFsvolQueryVolumeInformationComplete(
FsInformationClassSym(IrpSp->Parameters.QueryVolume.FsInformationClass));
}
static NTSTATUS FspFsvolSetVolumeInformation(
PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
static NTSTATUS FspFsvolSetFsLabelInformation(
PDEVICE_OBJECT FsvolDeviceObject, PVOID Buffer, ULONG Length, PULONG PRequestExtraSize,
FSP_FSCTL_TRANSACT_REQ *Request, const FSP_FSCTL_TRANSACT_RSP *Response)
{
PAGED_CODE();
return STATUS_INVALID_DEVICE_REQUEST;
if (0 == Request)
{
if (sizeof(FILE_FS_LABEL_INFORMATION) > Length)
return STATUS_INVALID_PARAMETER;
PFILE_FS_LABEL_INFORMATION Info = (PFILE_FS_LABEL_INFORMATION)Buffer;
*PRequestExtraSize = Info->VolumeLabelLength + sizeof(WCHAR);
}
else if (0 == Response)
{
PFILE_FS_LABEL_INFORMATION Info = (PFILE_FS_LABEL_INFORMATION)Buffer;
Request->Req.SetVolumeInformation.Info.Label.VolumeLabel.Offset = 0;
Request->Req.SetVolumeInformation.Info.Label.VolumeLabel.Size =
(UINT16)(Info->VolumeLabelLength + sizeof(WCHAR));
RtlCopyMemory(Request->Buffer, Info->VolumeLabel, Info->VolumeLabelLength);
((PWSTR)Request->Buffer)[Info->VolumeLabelLength / sizeof(WCHAR)] = L'\0';
}
else
FspFsvolSetVolumeInfo(FsvolDeviceObject, &Response->Rsp.SetVolumeInformation.VolumeInfo);
return STATUS_SUCCESS;
}
static NTSTATUS FspFsvolSetVolumeInformation(
PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
{
NTSTATUS Result;
FS_INFORMATION_CLASS FsInformationClass = IrpSp->Parameters.SetVolume.FsInformationClass;
PVOID Buffer = Irp->AssociatedIrp.SystemBuffer;
ULONG Length = IrpSp->Parameters.SetVolume.Length;
ULONG RequestExtraSize = 0;
switch (FsInformationClass)
{
case FileFsLabelInformation:
Result = FspFsvolSetFsLabelInformation(FsvolDeviceObject, Buffer, Length, &RequestExtraSize, 0, 0);
break;
default:
Result = STATUS_INVALID_PARAMETER;
break;
}
if (!NT_SUCCESS(Result))
return Result;
FSP_FSCTL_TRANSACT_REQ *Request;
Result = FspIopCreateRequest(Irp, 0, RequestExtraSize, &Request);
if (!NT_SUCCESS(Result))
return Result;
Request->Kind = FspFsctlTransactSetVolumeInformationKind;
Request->Req.SetVolumeInformation.FsInformationClass = FsInformationClass;
switch (FsInformationClass)
{
case FileFsLabelInformation:
Result = FspFsvolSetFsLabelInformation(FsvolDeviceObject, Buffer, Length, 0, Request, 0);
break;
default:
ASSERT(0);
Result = STATUS_INVALID_PARAMETER;
break;
}
if (!NT_SUCCESS(Result))
return Result;
return FSP_STATUS_IOQ_POST;
}
NTSTATUS FspFsvolSetVolumeInformationComplete(
@ -306,6 +381,32 @@ NTSTATUS FspFsvolSetVolumeInformationComplete(
{
FSP_ENTER_IOC(PAGED_CODE());
if (!NT_SUCCESS(Response->IoStatus.Status))
{
Irp->IoStatus.Information = 0;
Result = Response->IoStatus.Status;
FSP_RETURN();
}
FS_INFORMATION_CLASS FsInformationClass = IrpSp->Parameters.SetVolume.FsInformationClass;
PDEVICE_OBJECT FsvolDeviceObject = IrpSp->DeviceObject;
PVOID Buffer = Irp->AssociatedIrp.SystemBuffer;
ULONG Length = IrpSp->Parameters.SetFile.Length;
FSP_FSCTL_TRANSACT_REQ *Request = FspIrpRequest(Irp);
switch (FsInformationClass)
{
case FileFsLabelInformation:
Result = FspFsvolSetFsLabelInformation(FsvolDeviceObject, Buffer, Length, 0, Request, Response);
break;
default:
ASSERT(0);
Result = STATUS_INVALID_PARAMETER;
break;
}
Irp->IoStatus.Information = 0;
FSP_LEAVE_IOC("%s",
FsInformationClassSym(IrpSp->Parameters.SetVolume.FsInformationClass));
}