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sys,dll: reparse point implementation: DeleteReparsePoint

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This commit is contained in:
Bill Zissimopoulos
2016-08-26 07:43:25 -07:00
parent b88b2ec51d
commit 80e07cead6
6 changed files with 297 additions and 73 deletions
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54
inc/winfsp/winfsp.h
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@ -766,12 +766,41 @@ typedef struct _FSP_FILE_SYSTEM_INTERFACE
FSP_FSCTL_TRANSACT_REQ *Request,
PVOID FileNode,
PWSTR FileName, PVOID Buffer, SIZE_T Size);
/**
* Delete reparse point.
*
* The behavior of this function depends on the value of FSP_FSCTL_VOLUME_PARAMS ::
* ReparsePointsSymlinkOnly. If the value of ReparsePointsSymlinkOnly
* is FALSE the file system supports full reparse points and this function is expected
* to delete the reparse point contained in the buffer. If the value of
* ReparsePointsSymlinkOnly is TRUE the file system supports symbolic links only
* as reparse points and the Buffer and Size arguments will be NULL.
*
* @param FileSystem
* The file system on which this request is posted.
* @param Request
* The request posted by the kernel mode FSD.
* @param FileNode
* The file node of the reparse point.
* @param FileName
* The file name of the reparse point.
* @param Buffer
* Pointer to a buffer that contains the data for this operation.
* @param Size
* Size of data to write.
* @return
* STATUS_SUCCESS or error code.
*/
NTSTATUS (*DeleteReparsePoint)(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request,
PVOID FileNode,
PWSTR FileName, PVOID Buffer, SIZE_T Size);
/*
* This ensures that this interface will always contain 64 function pointers.
* Please update when changing the interface as it is important for future compatibility.
*/
NTSTATUS (*Reserved[42])();
NTSTATUS (*Reserved[41])();
} FSP_FILE_SYSTEM_INTERFACE;
#if defined(WINFSP_DLL_INTERNAL)
/*
@ -1126,6 +1155,29 @@ FSP_API NTSTATUS FspFileSystemResolveReparsePoints(FSP_FILE_SYSTEM *FileSystem,
PVOID Context,
PWSTR FileName, UINT32 ReparsePointIndex, BOOLEAN OpenReparsePoint,
PIO_STATUS_BLOCK PIoStatus, PVOID Buffer, PSIZE_T PSize);
/**
* Test whether reparse data can be replaced.
*
* This is a helper for implementing the SetReparsePoint/DeleteReparsePoint operation
* in file systems that support reparse points.
*
* @param CurrentReparseData
* Pointer to the current reparse data.
* @param CurrentReparseDataSize
* Pointer to the current reparse data size.
* @param ReplaceReparseData
* Pointer to the replacement reparse data.
* @param ReplaceReparseDataSize
* Pointer to the replacement reparse data size.
* @return
* STATUS_SUCCESS or error code.
* @see
* SetReparsePoint
* DeleteReparsePoint
*/
FSP_API NTSTATUS FspFileSystemCanReplaceReparsePoint(
PVOID CurrentReparseData, SIZE_T CurrentReparseDataSize,
PVOID ReplaceReparseData, SIZE_T ReplaceReparseDataSize);
/*
* Security