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sys: implement SectorSize queries

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- IRP_MJ_QUERY_VOLUME_INFORMATION/FileFsSectorSizeInformation
- IOCTL_STORAGE_QUERY_PROPERTY/StorageAccessAlignmentProperty
This commit is contained in:
Bill Zissimopoulos
2019-09-06 20:52:15 -07:00
parent de75454d50
commit 9436fd8402
4 changed files with 107 additions and 8 deletions
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40
src/sys/volinfo.c
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@ -28,6 +28,9 @@ static NTSTATUS FspFsvolQueryFsDeviceInformation(
static NTSTATUS FspFsvolQueryFsFullSizeInformation(
PDEVICE_OBJECT FsvolDeviceObject, PUINT8 *PBuffer, PUINT8 BufferEnd,
const FSP_FSCTL_VOLUME_INFO *VolumeInfo);
static NTSTATUS FspFsvolQueryFsSectorSizeInformation(
PDEVICE_OBJECT FsvolDeviceObject, PUINT8 *PBuffer, PUINT8 BufferEnd,
const FSP_FSCTL_VOLUME_INFO *VolumeInfo);
static NTSTATUS FspFsvolQueryFsSizeInformation(
PDEVICE_OBJECT FsvolDeviceObject, PUINT8 *PBuffer, PUINT8 BufferEnd,
const FSP_FSCTL_VOLUME_INFO *VolumeInfo);
@ -50,6 +53,7 @@ FSP_DRIVER_DISPATCH FspSetVolumeInformation;
#pragma alloc_text(PAGE, FspFsvolQueryFsAttributeInformation)
#pragma alloc_text(PAGE, FspFsvolQueryFsDeviceInformation)
#pragma alloc_text(PAGE, FspFsvolQueryFsFullSizeInformation)
#pragma alloc_text(PAGE, FspFsvolQueryFsSectorSizeInformation)
#pragma alloc_text(PAGE, FspFsvolQueryFsSizeInformation)
#pragma alloc_text(PAGE, FspFsvolQueryFsVolumeInformation)
#pragma alloc_text(PAGE, FspFsvolQueryVolumeInformation)
@ -186,6 +190,35 @@ static NTSTATUS FspFsvolQueryFsFullSizeInformation(
return STATUS_SUCCESS;
}
static NTSTATUS FspFsvolQueryFsSectorSizeInformation(
PDEVICE_OBJECT FsvolDeviceObject, PUINT8 *PBuffer, PUINT8 BufferEnd,
const FSP_FSCTL_VOLUME_INFO *VolumeInfo)
{
PAGED_CODE();
if (*PBuffer + sizeof(FILE_FS_SECTOR_SIZE_INFORMATION) > BufferEnd)
return STATUS_BUFFER_TOO_SMALL;
FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension = FspFsvolDeviceExtension(FsvolDeviceObject);
PFILE_FS_SECTOR_SIZE_INFORMATION Info = (PFILE_FS_SECTOR_SIZE_INFORMATION)*PBuffer;
Info->LogicalBytesPerSector =
Info->PhysicalBytesPerSectorForAtomicity =
Info->PhysicalBytesPerSectorForPerformance =
Info->FileSystemEffectivePhysicalBytesPerSectorForAtomicity =
FsvolDeviceExtension->VolumeParams.SectorSize;
Info->Flags =
SSINFO_FLAGS_ALIGNED_DEVICE |
SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE |
SSINFO_FLAGS_NO_SEEK_PENALTY;
Info->ByteOffsetForSectorAlignment = 0;
Info->ByteOffsetForPartitionAlignment = 0;
*PBuffer += sizeof(FILE_FS_SECTOR_SIZE_INFORMATION);
return STATUS_SUCCESS;
}
static NTSTATUS FspFsvolQueryFsSizeInformation(
PDEVICE_OBJECT FsvolDeviceObject, PUINT8 *PBuffer, PUINT8 BufferEnd,
const FSP_FSCTL_VOLUME_INFO *VolumeInfo)
@ -255,7 +288,7 @@ static NTSTATUS FspFsvolQueryVolumeInformation(
NTSTATUS Result;
PUINT8 Buffer = Irp->AssociatedIrp.SystemBuffer;
PUINT8 BufferEnd = Buffer + IrpSp->Parameters.QueryFile.Length;
PUINT8 BufferEnd = Buffer + IrpSp->Parameters.QueryVolume.Length;
switch (IrpSp->Parameters.QueryVolume.FsInformationClass)
{
@ -268,6 +301,9 @@ static NTSTATUS FspFsvolQueryVolumeInformation(
case FileFsFullSizeInformation:
Result = FspFsvolQueryFsFullSizeInformation(FsvolDeviceObject, &Buffer, BufferEnd, 0);
break;
case FileFsSectorSizeInformation:
Result = FspFsvolQueryFsSectorSizeInformation(FsvolDeviceObject, &Buffer, BufferEnd, 0);
break;
case FileFsSizeInformation:
Result = FspFsvolQueryFsSizeInformation(FsvolDeviceObject, &Buffer, BufferEnd, 0);
break;
@ -310,7 +346,7 @@ NTSTATUS FspFsvolQueryVolumeInformationComplete(
PDEVICE_OBJECT FsvolDeviceObject = IrpSp->DeviceObject;
PUINT8 Buffer = Irp->AssociatedIrp.SystemBuffer;
PUINT8 BufferEnd = Buffer + IrpSp->Parameters.QueryFile.Length;
PUINT8 BufferEnd = Buffer + IrpSp->Parameters.QueryVolume.Length;
FspFsvolDeviceSetVolumeInfo(FsvolDeviceObject, &Response->Rsp.QueryVolumeInformation.VolumeInfo);