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dll: fuse: use NFS reparse points for POSIX special files

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Bill Zissimopoulos
2016-09-08 10:43:01 -07:00
parent 28931f4687
commit 44c86ff9a4
7 changed files with 343 additions and 223 deletions
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1
inc/winfsp/fsctl.h
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@ -128,7 +128,6 @@ typedef struct
UINT32 PersistentAcls:1; /* file system preserves and enforces access control lists */
UINT32 ReparsePoints:1; /* file system supports reparse points */
UINT32 ReparsePointsAccessCheck:1; /* file system performs reparse point access checks */
UINT32 ReparsePointsSymlinkOnly:1; /* file system supports only symbolic link reparse points */
UINT32 NamedStreams:1; /* file system supports named streams (!!!: unimplemented) */
UINT32 HardLinks:1; /* unimplemented; set to 0 */
UINT32 ExtendedAttributes:1; /* unimplemented; set to 0 */

30
inc/winfsp/winfsp.h
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@ -654,16 +654,12 @@ typedef struct _FSP_FILE_SYSTEM_INTERFACE
/**
* Resolve reparse points.
*
* Reparse points are a general mechanism for attaching special behavior to files.
* A file or directory can contain a reparse point. A reparse point is data that has
* special meaning to the file system, Windows or user applications. For example, NTFS
* and Windows use reparse points to implement symbolic links. As another example,
* a particular file system may use reparse points to emulate UNIX FIFO's.
*
* Reparse points are a general mechanism for attaching special behavior to files. WinFsp
* supports any kind of reparse point. The symbolic link reparse point however is so
* important for many file systems (especially POSIX ones) that WinFsp implements special
* support for it.
*
* This function is expected to resolve as many reparse points as possible. If a reparse
* point is encountered that is not understood by the file system further reparse point
* resolution should stop; the reparse point data should be returned to the FSD with status
@ -702,14 +698,6 @@ typedef struct _FSP_FILE_SYSTEM_INTERFACE
/**
* Get 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 fill the buffer with a full reparse point. If the value of
* ReparsePointsSymlinkOnly is TRUE the file system supports symbolic links only
* as reparse points and this function is expected to fill the buffer with the symbolic
* link path.
*
* @param FileSystem
* The file system on which this request is posted.
* @param Request
@ -736,14 +724,6 @@ typedef struct _FSP_FILE_SYSTEM_INTERFACE
/**
* Set 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 set 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 this function is expected to set the symbolic link path contained
* in the buffer.
*
* @param FileSystem
* The file system on which this request is posted.
* @param Request
@ -769,13 +749,6 @@ typedef struct _FSP_FILE_SYSTEM_INTERFACE
/**
* 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
@ -827,7 +800,6 @@ typedef struct _FSP_FILE_SYSTEM
UINT32 DebugLog;
FSP_FILE_SYSTEM_OPERATION_GUARD_STRATEGY OpGuardStrategy;
SRWLOCK OpGuardLock;
UINT32 ReparsePointsSymlinkOnly:1;
} FSP_FILE_SYSTEM;
/**
* Create a file system object.