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sys: FileStatLxInformation and friends
This commit is contained in:
Bill Zissimopoulos
@ -494,6 +494,9 @@ NTSTATUS FspGetDeviceObjectPointer(PUNICODE_STRING ObjectName, ACCESS_MASK Desir
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PULONG PFileNameIndex, PFILE_OBJECT *PFileObject, PDEVICE_OBJECT *PDeviceObject);
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NTSTATUS FspSendSetInformationIrp(PDEVICE_OBJECT DeviceObject, PFILE_OBJECT FileObject,
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FILE_INFORMATION_CLASS FileInformationClass, PVOID FileInformation, ULONG Length);
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NTSTATUS FspSendQueryEaIrp(PDEVICE_OBJECT DeviceObject, PFILE_OBJECT FileObject,
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PFILE_GET_EA_INFORMATION GetEa, ULONG GetEaLength,
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PFILE_FULL_EA_INFORMATION Ea, PULONG PEaLength);
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NTSTATUS FspBufferUserBuffer(PIRP Irp, ULONG Length, LOCK_OPERATION Operation);
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NTSTATUS FspLockUserBuffer(PIRP Irp, ULONG Length, LOCK_OPERATION Operation);
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NTSTATUS FspMapLockedPagesInUserMode(PMDL Mdl, PVOID *PAddress, ULONG ExtraPriorityFlags);
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@ -1636,4 +1639,24 @@ LOGICAL RtlEqualMemory(const VOID *Source1, const VOID *Source2, SIZE_T Length)
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return Length == RtlCompareMemory(Source1, Source2, Length);
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}
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typedef struct _FILE_STAT_LX_INFORMATION
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{
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LARGE_INTEGER FileId;
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LARGE_INTEGER CreationTime;
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LARGE_INTEGER LastAccessTime;
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LARGE_INTEGER LastWriteTime;
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LARGE_INTEGER ChangeTime;
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LARGE_INTEGER AllocationSize;
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LARGE_INTEGER EndOfFile;
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ULONG FileAttributes;
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ULONG ReparseTag;
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ULONG NumberOfLinks;
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ACCESS_MASK EffectiveAccess;
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ULONG LxFlags;
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ULONG LxUid;
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ULONG LxGid;
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ULONG LxMode;
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ULONG LxDeviceIdMajor;
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ULONG LxDeviceIdMinor;
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} FILE_STAT_LX_INFORMATION, *PFILE_STAT_LX_INFORMATION;
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#endif
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@ -45,6 +45,15 @@ static NTSTATUS FspFsvolQueryPositionInformation(PFILE_OBJECT FileObject,
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static NTSTATUS FspFsvolQueryStandardInformation(PFILE_OBJECT FileObject,
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PVOID *PBuffer, PVOID BufferEnd,
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const FSP_FSCTL_FILE_INFO *FileInfo);
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static NTSTATUS FspFsvolQueryStatInformation(PFILE_OBJECT FileObject,
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PVOID *PBuffer, PVOID BufferEnd,
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const FSP_FSCTL_FILE_INFO *FileInfo);
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static NTSTATUS FspFsvolQueryStatLxInformation(PFILE_OBJECT FileObject,
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PVOID *PBuffer, PVOID BufferEnd,
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const FSP_FSCTL_FILE_INFO *FileInfo);
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static NTSTATUS FspFsvolQueryStatLxInformationEa(
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PDEVICE_OBJECT FsvolDeviceObject, PFILE_OBJECT FileObject,
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PVOID *PBuffer, PVOID BufferEnd);
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static NTSTATUS FspFsvolQueryStreamInformationCopy(
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FSP_FSCTL_STREAM_INFO *StreamInfoBuffer, ULONG StreamInfoBufferSize,
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PVOID DestBuf, PULONG PDestLen);
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@ -97,6 +106,9 @@ FAST_IO_QUERY_OPEN FspFastIoQueryOpen;
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#pragma alloc_text(PAGE, FspFsvolQueryNetworkOpenInformation)
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#pragma alloc_text(PAGE, FspFsvolQueryPositionInformation)
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#pragma alloc_text(PAGE, FspFsvolQueryStandardInformation)
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#pragma alloc_text(PAGE, FspFsvolQueryStatInformation)
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#pragma alloc_text(PAGE, FspFsvolQueryStatLxInformation)
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#pragma alloc_text(PAGE, FspFsvolQueryStatLxInformationEa)
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#pragma alloc_text(PAGE, FspFsvolQueryStreamInformationCopy)
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#pragma alloc_text(PAGE, FspFsvolQueryStreamInformation)
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#pragma alloc_text(PAGE, FspFsvolQueryStreamInformationSuccess)
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@ -417,6 +429,195 @@ static NTSTATUS FspFsvolQueryStandardInformation(PFILE_OBJECT FileObject,
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return STATUS_SUCCESS;
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}
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static NTSTATUS FspFsvolQueryStatInformation(PFILE_OBJECT FileObject,
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PVOID *PBuffer, PVOID BufferEnd,
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const FSP_FSCTL_FILE_INFO *FileInfo)
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{
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PAGED_CODE();
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PFILE_STAT_INFORMATION Info = (PFILE_STAT_INFORMATION)*PBuffer;
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FSP_FILE_NODE *FileNode = FileObject->FsContext;
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FSP_FILE_DESC *FileDesc = FileObject->FsContext2;
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ASSERT(FileNode == FileDesc->FileNode);
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if (0 == FileInfo)
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{
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if ((PVOID)(Info + 1) > BufferEnd)
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return STATUS_BUFFER_TOO_SMALL;
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return STATUS_SUCCESS;
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}
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Info->FileId.QuadPart = FileNode->IndexNumber;
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Info->CreationTime.QuadPart = FileInfo->CreationTime;
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Info->LastAccessTime.QuadPart = FileInfo->LastAccessTime;
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Info->LastWriteTime.QuadPart = FileInfo->LastWriteTime;
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Info->ChangeTime.QuadPart = FileInfo->ChangeTime;
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Info->AllocationSize.QuadPart = FileInfo->AllocationSize;
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Info->EndOfFile.QuadPart = FileInfo->FileSize;
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Info->FileAttributes = 0 != FileInfo->FileAttributes ?
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FileInfo->FileAttributes : FILE_ATTRIBUTE_NORMAL;
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Info->ReparseTag = FileInfo->ReparseTag;
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Info->NumberOfLinks = 1;
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Info->EffectiveAccess = FileDesc->GrantedAccess;
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*PBuffer = (PVOID)(Info + 1);
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return STATUS_SUCCESS;
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}
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static NTSTATUS FspFsvolQueryStatLxInformation(PFILE_OBJECT FileObject,
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PVOID *PBuffer, PVOID BufferEnd,
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const FSP_FSCTL_FILE_INFO *FileInfo)
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{
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PAGED_CODE();
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PFILE_STAT_LX_INFORMATION Info = (PFILE_STAT_LX_INFORMATION)*PBuffer;
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FSP_FILE_NODE *FileNode = FileObject->FsContext;
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FSP_FILE_DESC *FileDesc = FileObject->FsContext2;
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ASSERT(FileNode == FileDesc->FileNode);
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if (0 == FileInfo)
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{
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if ((PVOID)(Info + 1) > BufferEnd)
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return STATUS_BUFFER_TOO_SMALL;
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return STATUS_SUCCESS;
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}
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Info->FileId.QuadPart = FileNode->IndexNumber;
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Info->CreationTime.QuadPart = FileInfo->CreationTime;
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Info->LastAccessTime.QuadPart = FileInfo->LastAccessTime;
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Info->LastWriteTime.QuadPart = FileInfo->LastWriteTime;
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Info->ChangeTime.QuadPart = FileInfo->ChangeTime;
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Info->AllocationSize.QuadPart = FileInfo->AllocationSize;
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Info->EndOfFile.QuadPart = FileInfo->FileSize;
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Info->FileAttributes = 0 != FileInfo->FileAttributes ?
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FileInfo->FileAttributes : FILE_ATTRIBUTE_NORMAL;
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Info->ReparseTag = FileInfo->ReparseTag;
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Info->NumberOfLinks = 1;
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Info->EffectiveAccess = FileDesc->GrantedAccess;
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*PBuffer = (PVOID)(Info + 1);
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return STATUS_SUCCESS;
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}
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static NTSTATUS FspFsvolQueryStatLxInformationEa(
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PDEVICE_OBJECT FsvolDeviceObject, PFILE_OBJECT FileObject,
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PVOID *PBuffer, PVOID BufferEnd)
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{
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#define ADD_GET_EA(Name, End) \
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GetEa->NextEntryOffset = (ULONG)(End ? 0 :\
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FSP_FSCTL_ALIGN_UP( \
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FIELD_OFFSET(FILE_GET_EA_INFORMATION, EaName) + sizeof("" Name),\
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sizeof(ULONG))); \
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GetEa->EaNameLength = (UCHAR)(sizeof("" Name) - 1);\
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RtlCopyMemory(GetEa->EaName, "" Name, sizeof("" Name));\
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GetEaLength = (ULONG)((PUINT8)GetEa - (PUINT8)&GetEaBuf.V +\
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FIELD_OFFSET(FILE_GET_EA_INFORMATION, EaName) + sizeof("" Name));\
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GetEa = (PVOID)((PUINT8)GetEa + GetEa->NextEntryOffset);
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#define EQUAL_EA_NAME(Name) \
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CmpName.Length = \
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CmpName.MaximumLength = sizeof("" Name) - 1,\
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CmpName.Buffer = "" Name, \
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RtlEqualString(&CmpName, &EaName, TRUE/* always case-insensitive */)
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PAGED_CODE();
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FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension = FspFsvolDeviceExtension(FsvolDeviceObject);
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PFILE_STAT_LX_INFORMATION Info = (PFILE_STAT_LX_INFORMATION)*PBuffer;
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union
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{
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FILE_GET_EA_INFORMATION V;
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UINT8 B[256];
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} GetEaBuf;
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PFILE_GET_EA_INFORMATION GetEa = &GetEaBuf.V;
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ULONG GetEaLength = 0;
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union
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{
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FILE_FULL_EA_INFORMATION V;
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UINT8 B[256];
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} EaBuf;
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ULONG EaLength = sizeof EaBuf;
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STRING EaName, CmpName;
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NTSTATUS Result;
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Info->LxFlags = 0;
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Info->LxUid = 0;
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Info->LxGid = 0;
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Info->LxMode = 0;
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Info->LxDeviceIdMajor = 0;
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Info->LxDeviceIdMinor = 0;
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if (!FsvolDeviceExtension->VolumeParams.ExtendedAttributes)
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return STATUS_SUCCESS;
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ADD_GET_EA("$LXUID", 0);
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ADD_GET_EA("$LXGID", 0);
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ADD_GET_EA("$LXMOD", 0);
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ADD_GET_EA("$LXDEV", 1);
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Result = FspSendQueryEaIrp(FsvolDeviceObject/* bypass filters */, FileObject,
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&GetEaBuf.V, GetEaLength,
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&EaBuf.V, &EaLength);
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if (!NT_SUCCESS(Result))
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return Result;
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for (PFILE_FULL_EA_INFORMATION Ea = &EaBuf.V, EaEnd = (PVOID)((PUINT8)Ea + EaLength);
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EaEnd > Ea; Ea = FSP_NEXT_EA(Ea, EaEnd))
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{
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EaName.Length =
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EaName.MaximumLength = Ea->EaNameLength,
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EaName.Buffer = Ea->EaName;
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if (EQUAL_EA_NAME("$LXUID"))
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{
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if (sizeof(ULONG) == Ea->EaValueLength)
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{
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Info->LxFlags |= 0x1/*LX_FILE_METADATA_HAS_UID*/;
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Info->LxUid = *(PULONG)(Ea->EaName + sizeof "$LXUID");
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}
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}
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else
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if (EQUAL_EA_NAME("$LXGID"))
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{
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if (sizeof(ULONG) == Ea->EaValueLength)
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{
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Info->LxFlags |= 0x2/*LX_FILE_METADATA_HAS_GID*/;
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Info->LxGid = *(PULONG)(Ea->EaName + sizeof "$LXGID");
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}
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}
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else
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if (EQUAL_EA_NAME("$LXMOD"))
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{
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if (sizeof(ULONG) == Ea->EaValueLength)
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{
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Info->LxFlags |= 0x4/*LX_FILE_METADATA_HAS_MODE*/;
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Info->LxMode = *(PULONG)(Ea->EaName + sizeof "$LXMOD");
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}
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}
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else
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if (EQUAL_EA_NAME("$LXDEV"))
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{
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if (sizeof(UINT64) == Ea->EaValueLength)
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{
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Info->LxFlags |= 0x8/*LX_FILE_METADATA_HAS_DEVICE_ID*/;
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UINT64 Dev = *(PUINT64)(Ea->EaName + sizeof "$LXDEV");
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Info->LxDeviceIdMajor = (Dev >> 32) & 0xffffffff;
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Info->LxDeviceIdMinor = Dev & 0xffffffff;
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}
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}
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}
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return STATUS_SUCCESS;
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#undef EQUAL_EA_NAME
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#undef ADD_GET_EA
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}
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static NTSTATUS FspFsvolQueryStreamInformationCopy(
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FSP_FSCTL_STREAM_INFO *StreamInfo, ULONG StreamInfoSize,
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PVOID DestBuf, PULONG PDestLen)
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@ -720,6 +921,12 @@ static NTSTATUS FspFsvolQueryInformation(
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case FileStandardInformation:
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Result = FspFsvolQueryStandardInformation(FileObject, &Buffer, BufferEnd, 0);
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break;
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case FileStatInformation:
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Result = FspFsvolQueryStatInformation(FileObject, &Buffer, BufferEnd, 0);
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break;
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case 70/*FileStatLxInformation*/:
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Result = FspFsvolQueryStatLxInformation(FileObject, &Buffer, BufferEnd, 0);
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break;
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default:
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Result = STATUS_INVALID_PARAMETER;
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return Result;
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@ -729,6 +936,18 @@ static NTSTATUS FspFsvolQueryInformation(
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return Result;
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FspFileNodeAcquireShared(FileNode, Main);
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if (70/*FileStatLxInformation*/ == FileInformationClass)
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{
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Result = FspFsvolQueryStatLxInformationEa(
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FsvolDeviceObject, FileObject, &Buffer, BufferEnd);
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if (!NT_SUCCESS(Result))
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{
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FspFileNodeRelease(FileNode, Main);
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return Result;
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}
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}
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if (FspFileNodeTryGetFileInfo(FileNode, &FileInfoBuf))
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{
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FspFileNodeRelease(FileNode, Main);
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@ -755,6 +974,12 @@ static NTSTATUS FspFsvolQueryInformation(
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case FileStandardInformation:
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Result = FspFsvolQueryStandardInformation(FileObject, &Buffer, BufferEnd, &FileInfoBuf);
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break;
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case FileStatInformation:
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Result = FspFsvolQueryStatInformation(FileObject, &Buffer, BufferEnd, &FileInfoBuf);
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break;
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case 70/*FileStatLxInformation*/:
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Result = FspFsvolQueryStatLxInformation(FileObject, &Buffer, BufferEnd, &FileInfoBuf);
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break;
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default:
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ASSERT(0);
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Result = STATUS_INVALID_PARAMETER;
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@ -865,6 +1090,12 @@ NTSTATUS FspFsvolQueryInformationComplete(
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case FileStandardInformation:
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Result = FspFsvolQueryStandardInformation(FileObject, &Buffer, BufferEnd, FileInfo);
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break;
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case FileStatInformation:
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Result = FspFsvolQueryStatInformation(FileObject, &Buffer, BufferEnd, FileInfo);
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break;
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case 70/*FileStatLxInformation*/:
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Result = FspFsvolQueryStatLxInformation(FileObject, &Buffer, BufferEnd, FileInfo);
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break;
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default:
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ASSERT(0);
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Result = STATUS_INVALID_PARAMETER;
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@ -26,7 +26,10 @@ NTSTATUS FspGetDeviceObjectPointer(PUNICODE_STRING ObjectName, ACCESS_MASK Desir
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PULONG PFileNameIndex, PFILE_OBJECT *PFileObject, PDEVICE_OBJECT *PDeviceObject);
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NTSTATUS FspSendSetInformationIrp(PDEVICE_OBJECT DeviceObject, PFILE_OBJECT FileObject,
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FILE_INFORMATION_CLASS FileInformationClass, PVOID FileInformation, ULONG Length);
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static NTSTATUS FspSendSetInformationIrpCompletion(
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NTSTATUS FspSendQueryEaIrp(PDEVICE_OBJECT DeviceObject, PFILE_OBJECT FileObject,
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PFILE_GET_EA_INFORMATION GetEa, ULONG GetEaLength,
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PFILE_FULL_EA_INFORMATION Ea, PULONG PEaLength);
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static NTSTATUS FspSendIrpCompletion(
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PDEVICE_OBJECT DeviceObject, PIRP Irp, PVOID Context0);
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NTSTATUS FspBufferUserBuffer(PIRP Irp, ULONG Length, LOCK_OPERATION Operation);
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NTSTATUS FspLockUserBuffer(PIRP Irp, ULONG Length, LOCK_OPERATION Operation);
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@ -124,6 +127,7 @@ NTSTATUS FspIrpHookNext(PDEVICE_OBJECT DeviceObject, PIRP Irp, PVOID Context);
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#pragma alloc_text(PAGE, FspCreateGuid)
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#pragma alloc_text(PAGE, FspGetDeviceObjectPointer)
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#pragma alloc_text(PAGE, FspSendSetInformationIrp)
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#pragma alloc_text(PAGE, FspSendQueryEaIrp)
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#pragma alloc_text(PAGE, FspBufferUserBuffer)
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#pragma alloc_text(PAGE, FspLockUserBuffer)
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#pragma alloc_text(PAGE, FspMapLockedPagesInUserMode)
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@ -275,7 +279,7 @@ typedef struct
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{
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IO_STATUS_BLOCK IoStatus;
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KEVENT Event;
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} FSP_SEND_SET_INFORMATION_IRP_CONTEXT;
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} FSP_SEND_IRP_CONTEXT;
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NTSTATUS FspSendSetInformationIrp(PDEVICE_OBJECT DeviceObject, PFILE_OBJECT FileObject,
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FILE_INFORMATION_CLASS FileInformationClass, PVOID FileInformation, ULONG Length)
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@ -289,7 +293,7 @@ NTSTATUS FspSendSetInformationIrp(PDEVICE_OBJECT DeviceObject, PFILE_OBJECT File
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NTSTATUS Result;
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PIRP Irp;
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PIO_STACK_LOCATION IrpSp;
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FSP_SEND_SET_INFORMATION_IRP_CONTEXT Context;
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FSP_SEND_IRP_CONTEXT Context;
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if (0 == DeviceObject)
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DeviceObject = IoGetRelatedDeviceObject(FileObject);
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@ -304,9 +308,9 @@ NTSTATUS FspSendSetInformationIrp(PDEVICE_OBJECT DeviceObject, PFILE_OBJECT File
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IrpSp->MajorFunction = IRP_MJ_SET_INFORMATION;
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IrpSp->FileObject = FileObject;
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IrpSp->Parameters.SetFile.FileInformationClass = FileInformationClass;
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IrpSp->Parameters.SetFile.Length = FileInformationClass;
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IrpSp->Parameters.SetFile.Length = Length;
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IoSetCompletionRoutine(Irp, FspSendSetInformationIrpCompletion, &Context, TRUE, TRUE, TRUE);
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IoSetCompletionRoutine(Irp, FspSendIrpCompletion, &Context, TRUE, TRUE, TRUE);
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KeInitializeEvent(&Context.Event, NotificationEvent, FALSE);
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Result = IoCallDriver(DeviceObject, Irp);
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@ -316,12 +320,58 @@ NTSTATUS FspSendSetInformationIrp(PDEVICE_OBJECT DeviceObject, PFILE_OBJECT File
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return NT_SUCCESS(Result) ? Context.IoStatus.Status : Result;
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}
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static NTSTATUS FspSendSetInformationIrpCompletion(
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NTSTATUS FspSendQueryEaIrp(PDEVICE_OBJECT DeviceObject, PFILE_OBJECT FileObject,
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PFILE_GET_EA_INFORMATION GetEa, ULONG GetEaLength,
|
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PFILE_FULL_EA_INFORMATION Ea, PULONG PEaLength)
|
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{
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PAGED_CODE();
|
||||
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NTSTATUS Result;
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PIRP Irp;
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PIO_STACK_LOCATION IrpSp;
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FSP_SEND_IRP_CONTEXT Context;
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ULONG EaLength = *PEaLength;
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*PEaLength = 0;
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if (0 == DeviceObject)
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DeviceObject = IoGetRelatedDeviceObject(FileObject);
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Irp = IoAllocateIrp(DeviceObject->StackSize, FALSE);
|
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if (0 == Irp)
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return STATUS_INSUFFICIENT_RESOURCES;
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IrpSp = IoGetNextIrpStackLocation(Irp);
|
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Irp->RequestorMode = KernelMode;
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Irp->AssociatedIrp.SystemBuffer = Ea;
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IrpSp->MajorFunction = IRP_MJ_QUERY_EA;
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IrpSp->FileObject = FileObject;
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||||
IrpSp->Parameters.QueryEa.Length = EaLength;
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IrpSp->Parameters.QueryEa.EaList = GetEa;
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IrpSp->Parameters.QueryEa.EaListLength = GetEaLength;
|
||||
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IoSetCompletionRoutine(Irp, FspSendIrpCompletion, &Context, TRUE, TRUE, TRUE);
|
||||
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KeInitializeEvent(&Context.Event, NotificationEvent, FALSE);
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Result = IoCallDriver(DeviceObject, Irp);
|
||||
if (STATUS_PENDING == Result)
|
||||
KeWaitForSingleObject(&Context.Event, Executive, KernelMode, FALSE, 0);
|
||||
|
||||
if (!NT_SUCCESS(Result))
|
||||
return Result;
|
||||
|
||||
if (NT_SUCCESS(Context.IoStatus.Status))
|
||||
*PEaLength = (ULONG)Context.IoStatus.Information;
|
||||
|
||||
return Context.IoStatus.Status;
|
||||
}
|
||||
|
||||
static NTSTATUS FspSendIrpCompletion(
|
||||
PDEVICE_OBJECT DeviceObject, PIRP Irp, PVOID Context0)
|
||||
{
|
||||
// !PAGED_CODE();
|
||||
|
||||
FSP_SEND_SET_INFORMATION_IRP_CONTEXT *Context = Context0;
|
||||
FSP_SEND_IRP_CONTEXT *Context = Context0;
|
||||
|
||||
Context->IoStatus = Irp->IoStatus;
|
||||
KeSetEvent(&Context->Event, 1, FALSE);
|
||||
|
||||
Reference in New Issue
Block a user