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sys: FspFsvolQueryInformation: FileIdInformation

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This commit is contained in:
Bill Zissimopoulos 2023-02-23 12:31:01 +00:00
parent 97c075e744
commit 82f84f5bf7
2 changed files with 55 additions and 0 deletions
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33
src/sys/fileinfo.c
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@ -33,6 +33,8 @@ static NTSTATUS FspFsvolQueryBasicInformation(PFILE_OBJECT FileObject,
static NTSTATUS FspFsvolQueryEaInformation(PFILE_OBJECT FileObject,
PVOID *PBuffer, PVOID BufferEnd,
const FSP_FSCTL_FILE_INFO *FileInfo);
static NTSTATUS FspFsvolQueryIdInformation(PFILE_OBJECT FileObject,
PVOID *PBuffer, PVOID BufferEnd);
static NTSTATUS FspFsvolQueryInternalInformation(PFILE_OBJECT FileObject,
PVOID *PBuffer, PVOID BufferEnd);
static NTSTATUS FspFsvolQueryNameInformation(PFILE_OBJECT FileObject,
@ -106,6 +108,7 @@ FAST_IO_QUERY_OPEN FspFastIoQueryOpen;
#pragma alloc_text(PAGE, FspFsvolQueryAttributeTagInformation)
#pragma alloc_text(PAGE, FspFsvolQueryBasicInformation)
#pragma alloc_text(PAGE, FspFsvolQueryEaInformation)
#pragma alloc_text(PAGE, FspFsvolQueryIdInformation)
#pragma alloc_text(PAGE, FspFsvolQueryInternalInformation)
#pragma alloc_text(PAGE, FspFsvolQueryNameInformation)
#pragma alloc_text(PAGE, FspFsvolQueryNetworkOpenInformation)
@ -288,6 +291,32 @@ static NTSTATUS FspFsvolQueryEaInformation(PFILE_OBJECT FileObject,
return STATUS_SUCCESS;
}
static NTSTATUS FspFsvolQueryIdInformation(PFILE_OBJECT FileObject,
PVOID *PBuffer, PVOID BufferEnd)
{
PAGED_CODE();
PFILE_ID_INFORMATION Info = (PFILE_ID_INFORMATION)*PBuffer;
FSP_FILE_NODE *FileNode = FileObject->FsContext;
PDEVICE_OBJECT FsvolDeviceObject = FileNode->FsvolDeviceObject;
FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension = FspFsvolDeviceExtension(FsvolDeviceObject);
union
{
UINT64 IndexNumber;
FILE_ID_128 FileId;
} FileIdBuf = { .IndexNumber = FileNode->IndexNumber };
if ((PVOID)(Info + 1) > BufferEnd)
return STATUS_BUFFER_TOO_SMALL;
Info->VolumeSerialNumber = FsvolDeviceExtension->VolumeParams.VolumeSerialNumber;
Info->FileId = FileIdBuf.FileId;
*PBuffer = (PVOID)(Info + 1);
return STATUS_SUCCESS;
}
static NTSTATUS FspFsvolQueryInternalInformation(PFILE_OBJECT FileObject,
PVOID *PBuffer, PVOID BufferEnd)
{
@ -961,6 +990,10 @@ static NTSTATUS FspFsvolQueryInformation(
case FileHardLinkInformation:
Result = STATUS_NOT_SUPPORTED; /* no hard link support */
return Result;
case FileIdInformation:
Result = FspFsvolQueryIdInformation(FileObject, &Buffer, BufferEnd);
Irp->IoStatus.Information = (UINT_PTR)((PUINT8)Buffer - (PUINT8)Irp->AssociatedIrp.SystemBuffer);
return Result;
case FileInternalInformation:
Result = FspFsvolQueryInternalInformation(FileObject, &Buffer, BufferEnd);
Irp->IoStatus.Information = (UINT_PTR)((PUINT8)Buffer - (PUINT8)Irp->AssociatedIrp.SystemBuffer);

22
tst/winfsp-tests/info-test.c
View File

@ -273,6 +273,28 @@ void getfileinfo_dotest(ULONG Flags, PWSTR Prefix, ULONG FileInfoTimeout)
ASSERT(0 == FileInfo.nFileSizeLow && 0 == FileInfo.nFileSizeHigh);
ASSERT(1 == FileInfo.nNumberOfLinks);
if (-1 != Flags)
{
/* WinFsp file systems respond to FileIdInformation queries with the IndexNumber zero-extended */
struct
{
/* FILE_ID_INFO is missing from old version of SDK that we are still using */
ULONGLONG VolumeSerialNumber;
UINT8 FileId[16];
} IdInfo;
union
{
UINT64 IndexNumber;
UINT8 FileId[16];
} ExpectedFileId = { 0 };
Success = GetFileInformationByHandleEx(Handle, 0x12/*FileIdInfo*/, &IdInfo, sizeof IdInfo);
if (Success)
{
ExpectedFileId.IndexNumber = ((UINT64)FileInfo.nFileIndexHigh << 32) | (UINT64)FileInfo.nFileIndexLow;
ASSERT(0 == memcmp(&ExpectedFileId.FileId, &IdInfo.FileId, sizeof IdInfo.FileId));
}
}
CloseHandle(Handle);
memfs_stop(memfs);