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sys,dll: reparse point testing

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This commit is contained in:
Bill Zissimopoulos 2016-09-09 19:40:37 -07:00
parent 0c07be9628
commit 811696d939
6 changed files with 22 additions and 20 deletions
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1
inc/winfsp/fsctl.h
View File

@ -63,6 +63,7 @@ extern const __declspec(selectany) GUID FspFsvrtDeviceClassGuid =
#define FSP_FSCTL_TRANSACT_REQ_SIZEMAX (4096 - 64) /* 64: size for internal request header */
#define FSP_FSCTL_TRANSACT_RSP_SIZEMAX (4096 - 64) /* symmetry! */
#define FSP_FSCTL_TRANSACT_RSP_BUFFER_SIZEMAX (FSP_FSCTL_TRANSACT_RSP_SIZEMAX - sizeof(FSP_FSCTL_TRANSACT_RSP))
#define FSP_FSCTL_TRANSACT_BATCH_BUFFER_SIZEMIN 16384
#define FSP_FSCTL_TRANSACT_BUFFER_SIZEMIN FSP_FSCTL_TRANSACT_REQ_SIZEMAX

16
inc/winfsp/winfsp.h
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@ -675,9 +675,9 @@ typedef struct _FSP_FILE_SYSTEM_INTERFACE
* The name of the file or directory to have its reparse points resolved.
* @param ReparsePointIndex
* The index of the first reparse point within FileName.
* @param OpenReparsePoint
* If TRUE, the last path component of FileName should not be resolved, even
* if it is a reparse point that can be resolved. If FALSE, all path components
* @param ResolveLastPathComponent
* If FALSE, the last path component of FileName should not be resolved, even
* if it is a reparse point that can be resolved. If TRUE, all path components
* should be resolved if possible.
* @param PIoStatus
* Pointer to storage that will receive the status to return to the FSD. When
@ -694,7 +694,7 @@ typedef struct _FSP_FILE_SYSTEM_INTERFACE
* STATUS_REPARSE or error code.
*/
NTSTATUS (*ResolveReparsePoints)(FSP_FILE_SYSTEM *FileSystem,
PWSTR FileName, UINT32 ReparsePointIndex, BOOLEAN OpenReparsePoint,
PWSTR FileName, UINT32 ReparsePointIndex, BOOLEAN ResolveLastPathComponent,
PIO_STATUS_BLOCK PIoStatus, PVOID Buffer, PSIZE_T PSize);
/**
* Get reparse point.
@ -1101,9 +1101,9 @@ FSP_API BOOLEAN FspFileSystemFindReparsePoint(FSP_FILE_SYSTEM *FileSystem,
* The name of the file or directory to have its reparse points resolved.
* @param ReparsePointIndex
* The index of the first reparse point within FileName.
* @param OpenReparsePoint
* If TRUE, the last path component of FileName should not be resolved, even
* if it is a reparse point that can be resolved. If FALSE, all path components
* @param ResolveLastPathComponent
* If FALSE, the last path component of FileName should not be resolved, even
* if it is a reparse point that can be resolved. If TRUE, all path components
* should be resolved if possible.
* @param PIoStatus
* Pointer to storage that will receive the status to return to the FSD. When
@ -1126,7 +1126,7 @@ FSP_API NTSTATUS FspFileSystemResolveReparsePoints(FSP_FILE_SYSTEM *FileSystem,
FSP_FILE_SYSTEM *FileSystem, PVOID Context,
PWSTR FileName, BOOLEAN IsDirectory, PVOID Buffer, PSIZE_T PSize),
PVOID Context,
PWSTR FileName, UINT32 ReparsePointIndex, BOOLEAN OpenReparsePoint,
PWSTR FileName, UINT32 ReparsePointIndex, BOOLEAN ResolveLastPathComponent,
PIO_STATUS_BLOCK PIoStatus, PVOID Buffer, PSIZE_T PSize);
/**
* Test whether reparse data can be replaced.

15
src/dll/fsop.c
View File

@ -103,11 +103,11 @@ NTSTATUS FspFileSystemCallResolveReparsePoints(FSP_FILE_SYSTEM *FileSystem,
if (0 != FileSystem->Interface->ResolveReparsePoints)
{
memset(&IoStatus, 0, sizeof IoStatus);
Size = FSP_FSCTL_TRANSACT_RSP_SIZEMAX - FIELD_OFFSET(FSP_FSCTL_TRANSACT_RSP, Buffer);
Size = FSP_FSCTL_TRANSACT_RSP_BUFFER_SIZEMAX;
Result = FileSystem->Interface->ResolveReparsePoints(FileSystem,
(PWSTR)Request->Buffer,
ReparsePointIndex,
!!(Request->Req.Create.CreateOptions & FILE_OPEN_REPARSE_POINT),
!(Request->Req.Create.CreateOptions & FILE_OPEN_REPARSE_POINT),
&IoStatus,
Response->Buffer,
&Size);
@ -116,6 +116,7 @@ NTSTATUS FspFileSystemCallResolveReparsePoints(FSP_FILE_SYSTEM *FileSystem,
Result = STATUS_REPARSE;
Response->IoStatus.Information = (UINT32)IoStatus.Information;
Response->Size = (UINT16)(sizeof *Response + Size);
if (0/*IO_REPARSE*/ == IoStatus.Information)
{
Response->Rsp.Create.Reparse.FileName.Offset = 0;
@ -901,7 +902,7 @@ FSP_API NTSTATUS FspFileSystemOpFileSystemControl(FSP_FILE_SYSTEM *FileSystem,
ReparseData = (PREPARSE_DATA_BUFFER)Response->Buffer;
memset(ReparseData, 0, sizeof *ReparseData);
Size = FSP_FSCTL_TRANSACT_RSP_SIZEMAX - FIELD_OFFSET(FSP_FSCTL_TRANSACT_RSP, Buffer);
Size = FSP_FSCTL_TRANSACT_RSP_BUFFER_SIZEMAX;
Result = FileSystem->Interface->GetReparsePoint(FileSystem, Request,
(PVOID)Request->Req.FileSystemControl.UserContext,
(PWSTR)Request->Buffer, ReparseData, &Size);
@ -1055,7 +1056,7 @@ FSP_API NTSTATUS FspFileSystemResolveReparsePoints(FSP_FILE_SYSTEM *FileSystem,
FSP_FILE_SYSTEM *FileSystem, PVOID Context,
PWSTR FileName, BOOLEAN IsDirectory, PVOID Buffer, PSIZE_T PSize),
PVOID Context,
PWSTR FileName, UINT32 ReparsePointIndex, BOOLEAN OpenReparsePoint,
PWSTR FileName, UINT32 ReparsePointIndex, BOOLEAN ResolveLastPathComponent,
PIO_STATUS_BLOCK PIoStatus, PVOID Buffer, PSIZE_T PSize)
{
WCHAR c, *p, *lastp;
@ -1090,9 +1091,9 @@ FSP_API NTSTATUS FspFileSystemResolveReparsePoints(FSP_FILE_SYSTEM *FileSystem,
{
if (L'\0' == *p)
{
if (!OpenReparsePoint)
if (!ResolveLastPathComponent)
goto exit;
OpenReparsePoint = FALSE;
ResolveLastPathComponent = FALSE;
break;
}
p++;
@ -1157,7 +1158,7 @@ FSP_API NTSTATUS FspFileSystemResolveReparsePoints(FSP_FILE_SYSTEM *FileSystem,
{
/* not a symlink; return the full reparse point! */
if (Size > *PSize)
return STATUS_OBJECT_NAME_INVALID;
return STATUS_IO_REPARSE_DATA_INVALID;
memcpy(Buffer, ReparseData, Size);
goto no_symlink_exit;

4
src/dll/fuse/fuse_intf.c
View File

@ -1877,11 +1877,11 @@ exit:
}
static NTSTATUS fsp_fuse_intf_ResolveReparsePoints(FSP_FILE_SYSTEM *FileSystem,
PWSTR FileName, UINT32 ReparsePointIndex, BOOLEAN OpenReparsePoint,
PWSTR FileName, UINT32 ReparsePointIndex, BOOLEAN ResolveLastPathComponent,
PIO_STATUS_BLOCK PIoStatus, PVOID Buffer, PSIZE_T PSize)
{
return FspFileSystemResolveReparsePoints(FileSystem, fsp_fuse_intf_GetReparsePointByName, 0,
FileName, ReparsePointIndex, OpenReparsePoint,
FileName, ReparsePointIndex, ResolveLastPathComponent,
PIoStatus, Buffer, PSize);
}

2
src/sys/iop.c
View File

@ -227,7 +227,7 @@ VOID FspIopCompleteIrpEx(PIRP Irp, NTSTATUS Result, BOOLEAN DeviceDereference)
/* get the device object out of the IRP before completion */
PDEVICE_OBJECT DeviceObject = IoGetCurrentIrpStackLocation(Irp)->DeviceObject;
if (STATUS_SUCCESS != Result && STATUS_BUFFER_OVERFLOW != Result)
if (STATUS_SUCCESS != Result && STATUS_REPARSE != Result && STATUS_BUFFER_OVERFLOW != Result)
Irp->IoStatus.Information = 0;
Irp->IoStatus.Status = Result;
IoCompleteRequest(Irp, FSP_IO_INCREMENT);

4
tst/memfs/memfs.cpp
View File

@ -945,11 +945,11 @@ static NTSTATUS ReadDirectory(FSP_FILE_SYSTEM *FileSystem,
}
static NTSTATUS ResolveReparsePoints(FSP_FILE_SYSTEM *FileSystem,
PWSTR FileName, UINT32 ReparsePointIndex, BOOLEAN OpenReparsePoint,
PWSTR FileName, UINT32 ReparsePointIndex, BOOLEAN ResolveLastPathComponent,
PIO_STATUS_BLOCK PIoStatus, PVOID Buffer, PSIZE_T PSize)
{
return FspFileSystemResolveReparsePoints(FileSystem, GetReparsePointByName, 0,
FileName, ReparsePointIndex, OpenReparsePoint,
FileName, ReparsePointIndex, ResolveLastPathComponent,
PIoStatus, Buffer, PSize);
}