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src: dll: FspFileSystemOpQueryDirectory, FspFileSystemAddDirInfo

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This commit is contained in:
Bill Zissimopoulos 2016-03-21 12:18:40 -07:00
parent 6fc43c6ca2
commit 85a2d61d31
2 changed files with 54 additions and 1 deletions
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6
inc/winfsp/winfsp.h
View File

@ -207,6 +207,12 @@ FSP_API NTSTATUS FspFileSystemOpQuerySecurity(FSP_FILE_SYSTEM *FileSystem,
FSP_API NTSTATUS FspFileSystemOpSetSecurity(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response);
/*
* File System Operations Helpers
*/
FSP_API BOOLEAN FspFileSystemAddDirInfo(FSP_FSCTL_DIR_INFO *DirInfo,
PVOID Buffer, ULONG Length, PULONG PBytesTransferred);
/*
* Access
*/

49
src/dll/fsop.c
View File

@ -600,7 +600,25 @@ FSP_API NTSTATUS FspFileSystemOpSetVolumeInformation(FSP_FILE_SYSTEM *FileSystem
FSP_API NTSTATUS FspFileSystemOpQueryDirectory(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response)
{
return STATUS_INVALID_DEVICE_REQUEST;
NTSTATUS Result;
ULONG BytesTransferred;
if (0 == FileSystem->Interface->ReadDirectory)
return STATUS_INVALID_DEVICE_REQUEST;
Result = FileSystem->Interface->ReadDirectory(FileSystem, Request,
(PVOID)Request->Req.QueryDirectory.UserContext,
(PVOID)Request->Req.QueryDirectory.Address,
Request->Req.QueryDirectory.Offset,
Request->Req.QueryDirectory.Length,
&BytesTransferred);
if (!NT_SUCCESS(Result))
return Result;
if (STATUS_PENDING != Result)
Response->IoStatus.Information = BytesTransferred;
return Result;
}
FSP_API NTSTATUS FspFileSystemOpQuerySecurity(FSP_FILE_SYSTEM *FileSystem,
@ -636,3 +654,32 @@ FSP_API NTSTATUS FspFileSystemOpSetSecurity(FSP_FILE_SYSTEM *FileSystem,
Request->Req.SetSecurity.SecurityInformation,
(PSECURITY_DESCRIPTOR)Request->Buffer);
}
FSP_API BOOLEAN FspFileSystemAddDirInfo(FSP_FSCTL_DIR_INFO *DirInfo,
PVOID Buffer, ULONG Length, PULONG PBytesTransferred)
{
static UINT8 Zero[sizeof DirInfo->Size] = { 0 };
PVOID BufferEnd = (PUINT8)Buffer + Length;
PVOID SrcBuffer;
ULONG SrcLength;
if (0 != DirInfo)
{
SrcBuffer = DirInfo;
SrcLength = sizeof DirInfo->Size;
}
else
{
SrcBuffer = &Zero;
SrcLength = sizeof Zero;
}
Buffer = (PVOID)((PUINT8)Buffer + *PBytesTransferred);
if ((PUINT8)Buffer + SrcLength > (PUINT8)BufferEnd)
return FALSE;
memcpy(Buffer, SrcBuffer, SrcLength);
*PBytesTransferred += SrcLength;
return TRUE;
}