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sys: FSCTL_QUERY_PERSISTENT_VOLUME_STATE

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This commit is contained in:
Bill Zissimopoulos 2016-12-15 16:15:22 -08:00
parent 6eb2879374
commit 671c0c12ab
2 changed files with 60 additions and 0 deletions
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36
src/sys/fsctl.c
View File

@ -29,6 +29,8 @@ static NTSTATUS FspFsvolFileSystemControlOplock(
PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
static IO_COMPLETION_ROUTINE FspFsvolFileSystemControlOplockCompletion;
static WORKER_THREAD_ROUTINE FspFsvolFileSystemControlOplockCompletionWork;
static NTSTATUS FspFsvolFileSystemControlQueryPersistentVolumeState(
PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
static NTSTATUS FspFsvolFileSystemControl(
PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
FSP_IOCMPL_DISPATCH FspFsvolFileSystemControlComplete;
@ -42,6 +44,7 @@ FSP_DRIVER_DISPATCH FspFileSystemControl;
#pragma alloc_text(PAGE, FspFsvolFileSystemControlOplock)
// !#pragma alloc_text(PAGE, FspFsvolFileSystemControlOplockCompletion)
#pragma alloc_text(PAGE, FspFsvolFileSystemControlOplockCompletionWork)
#pragma alloc_text(PAGE, FspFsvolFileSystemControlQueryPersistentVolumeState)
#pragma alloc_text(PAGE, FspFsvolFileSystemControl)
#pragma alloc_text(PAGE, FspFsvolFileSystemControlComplete)
#pragma alloc_text(PAGE, FspFsvolFileSystemControlRequestFini)
@ -473,6 +476,36 @@ static VOID FspFsvolFileSystemControlOplockCompletionWork(PVOID Context)
FspFree(CompletionContext);
}
static NTSTATUS FspFsvolFileSystemControlQueryPersistentVolumeState(
PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
{
PAGED_CODE();
PVOID Buffer = Irp->AssociatedIrp.SystemBuffer;
ULONG InputBufferLength = IrpSp->Parameters.FileSystemControl.InputBufferLength;
ULONG OutputBufferLength = IrpSp->Parameters.FileSystemControl.OutputBufferLength;
PFILE_FS_PERSISTENT_VOLUME_INFORMATION Info;
if (0 == Buffer)
return STATUS_INVALID_PARAMETER;
if (sizeof(FILE_FS_PERSISTENT_VOLUME_INFORMATION) > InputBufferLength ||
sizeof(FILE_FS_PERSISTENT_VOLUME_INFORMATION) > OutputBufferLength)
return STATUS_BUFFER_TOO_SMALL;
Info = Buffer;
if (1 != Info->Version ||
!FlagOn(Info->FlagMask, PERSISTENT_VOLUME_STATE_SHORT_NAME_CREATION_DISABLED))
return STATUS_INVALID_PARAMETER;
RtlZeroMemory(Info, sizeof(FILE_FS_PERSISTENT_VOLUME_INFORMATION));
Info->VolumeFlags = PERSISTENT_VOLUME_STATE_SHORT_NAME_CREATION_DISABLED;
Irp->IoStatus.Information = sizeof(FILE_FS_PERSISTENT_VOLUME_INFORMATION);
return STATUS_SUCCESS;
}
static NTSTATUS FspFsvolFileSystemControl(
PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
{
@ -506,6 +539,9 @@ static NTSTATUS FspFsvolFileSystemControl(
case FSCTL_REQUEST_OPLOCK:
Result = FspFsvolFileSystemControlOplock(FsvolDeviceObject, Irp, IrpSp);
break;
case FSCTL_QUERY_PERSISTENT_VOLUME_STATE:
Result = FspFsvolFileSystemControlQueryPersistentVolumeState(FsvolDeviceObject, Irp, IrpSp);
break;
}
break;
}

24
tst/winfsp-tests/info-test.c
View File

@ -1039,6 +1039,8 @@ void getvolinfo_dotest(ULONG Flags, PWSTR Prefix, ULONG FileInfoTimeout)
ULARGE_INTEGER TotalBytes;
ULARGE_INTEGER FreeBytes;
HANDLE Handle;
FILE_FS_PERSISTENT_VOLUME_INFORMATION PersistentVolumeInfo, PersistentVolumeInfoOut;
DWORD BytesTransferred;
StringCbPrintfW(FilePath, sizeof FilePath, L"%s%s\\",
Prefix ? L"" : L"\\\\?\\GLOBALROOT", Prefix ? Prefix : memfs_volumename(memfs));
@ -1078,6 +1080,28 @@ void getvolinfo_dotest(ULONG Flags, PWSTR Prefix, ULONG FileInfoTimeout)
ASSERT(FILE_TYPE_DISK == FileType);
CloseHandle(Handle);
StringCbPrintfW(FilePath, sizeof FilePath, L"%s%s%s",
-1 == Flags ? L"\\\\.\\" : L"",
Prefix ? L"" : L"\\\\?\\GLOBALROOT", Prefix ? Prefix : memfs_volumename(memfs));
Handle = CreateFileW(FilePath,
FILE_READ_DATA, FILE_SHARE_READ | FILE_SHARE_WRITE, 0, OPEN_EXISTING,
FILE_FLAG_BACKUP_SEMANTICS, 0);
ASSERT(INVALID_HANDLE_VALUE != Handle);
memset(&PersistentVolumeInfo, 0, sizeof PersistentVolumeInfo);
PersistentVolumeInfo.FlagMask = PERSISTENT_VOLUME_STATE_SHORT_NAME_CREATION_DISABLED;
PersistentVolumeInfo.Version = 1;
Success = DeviceIoControl(Handle, FSCTL_QUERY_PERSISTENT_VOLUME_STATE,
&PersistentVolumeInfo, sizeof PersistentVolumeInfo,
&PersistentVolumeInfoOut, sizeof PersistentVolumeInfoOut,
&BytesTransferred,
0);
ASSERT(Success);
ASSERT(sizeof PersistentVolumeInfoOut == BytesTransferred);
if (-1 != Flags)
ASSERT(PERSISTENT_VOLUME_STATE_SHORT_NAME_CREATION_DISABLED == PersistentVolumeInfoOut.VolumeFlags);
CloseHandle(Handle);
memfs_stop(memfs);
}