Public/winfsp
1
0
Fork 0
mirror of https://github.com/winfsp/winfsp.git synced 2025-07-03 17:32:57 -05:00
Code Issues Packages Projects Releases Wiki Activity

sys: IRP_MJ_QUERY_INFORMATION: FileStreamInformation

Browse Source
This commit is contained in:
Bill Zissimopoulos
2016-09-24 13:59:02 -07:00
parent b06e947e0e
commit 0c810c52fa
9 changed files with 447 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

50
src/dll/fsop.c
View File

@ -976,18 +976,46 @@ FSP_API NTSTATUS FspFileSystemOpSetSecurity(FSP_FILE_SYSTEM *FileSystem,
(PSECURITY_DESCRIPTOR)Request->Buffer);
}
FSP_API BOOLEAN FspFileSystemAddDirInfo(FSP_FSCTL_DIR_INFO *DirInfo,
FSP_API NTSTATUS FspFileSystemOpQueryStreamInformation(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response)
{
NTSTATUS Result;
ULONG BytesTransferred;
if (0 == FileSystem->Interface->GetStreamInfo)
return STATUS_INVALID_DEVICE_REQUEST;
BytesTransferred = 0;
Result = FileSystem->Interface->GetStreamInfo(FileSystem, Request,
(PVOID)USERCONTEXT(Request->Req.QueryStreamInformation),
Response->Buffer,
FSP_FSCTL_TRANSACT_RSP_SIZEMAX - sizeof *Response,
&BytesTransferred);
if (!NT_SUCCESS(Result))
return Result;
Response->Size = (UINT16)(sizeof *Response + BytesTransferred);
Response->Rsp.QueryStreamInformation.Buffer.Offset = 0;
Response->Rsp.QueryStreamInformation.Buffer.Size = (UINT16)BytesTransferred;
return STATUS_SUCCESS;
}
FSP_FSCTL_STATIC_ASSERT(
sizeof(UINT16) == sizeof ((FSP_FSCTL_DIR_INFO *)0)->Size &&
sizeof(UINT16) == sizeof ((FSP_FSCTL_STREAM_INFO *)0)->Size,
"FSP_FSCTL_DIR_INFO::Size and FSP_FSCTL_STREAM_INFO::Size: sizeof must be 2.");
static BOOLEAN FspFileSystemAddXxxInfo(PVOID Info, SIZE_T InfoSize,
PVOID Buffer, ULONG Length, PULONG PBytesTransferred)
{
static UINT8 Zero[sizeof DirInfo->Size] = { 0 };
static UINT8 Zero[sizeof(UINT16)] = { 0 };
PVOID BufferEnd = (PUINT8)Buffer + Length;
PVOID SrcBuffer;
ULONG SrcLength, DstLength;
if (0 != DirInfo)
if (0 != Info)
{
SrcBuffer = DirInfo;
SrcLength = DirInfo->Size;
SrcBuffer = Info;
SrcLength = *(PUINT16)Info;
DstLength = FSP_FSCTL_DEFAULT_ALIGN_UP(SrcLength);
}
else
@ -1007,6 +1035,12 @@ FSP_API BOOLEAN FspFileSystemAddDirInfo(FSP_FSCTL_DIR_INFO *DirInfo,
return TRUE;
}
FSP_API BOOLEAN FspFileSystemAddDirInfo(FSP_FSCTL_DIR_INFO *DirInfo,
PVOID Buffer, ULONG Length, PULONG PBytesTransferred)
{
return FspFileSystemAddXxxInfo(DirInfo, sizeof *DirInfo, Buffer, Length, PBytesTransferred);
}
FSP_API BOOLEAN FspFileSystemFindReparsePoint(FSP_FILE_SYSTEM *FileSystem,
NTSTATUS (*GetReparsePointByName)(
FSP_FILE_SYSTEM *FileSystem, PVOID Context,
@ -1267,3 +1301,9 @@ FSP_API NTSTATUS FspFileSystemCanReplaceReparsePoint(
else
return STATUS_SUCCESS;
}
FSP_API BOOLEAN FspFileSystemAddStreamInfo(FSP_FSCTL_STREAM_INFO *StreamInfo,
PVOID Buffer, ULONG Length, PULONG PBytesTransferred)
{
return FspFileSystemAddXxxInfo(StreamInfo, sizeof *StreamInfo, Buffer, Length, PBytesTransferred);
}