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dll: revert the Delete redesign

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This commit is contained in:
Bill Zissimopoulos
2021-11-22 18:26:45 +00:00
parent 4e94991221
commit 666561bfa1
4 changed files with 35 additions and 190 deletions
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95
tst/memfs/memfs.cpp
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@@ -88,13 +88,6 @@ FSP_FSCTL_STATIC_ASSERT(MEMFS_MAX_PATH > MAX_PATH,
#define MEMFS_REJECT_EARLY_IRP
#endif
/*
* Define the MEMFS_DELETE macro to include new Delete support
* (instead of Cleanup/FspCleanupDelete). This is required to
* properly support POSIX unlink/rename.
*/
#define MEMFS_DELETE
/*
* Define the DEBUG_BUFFER_CHECK macro on Windows 8 or above. This includes
* a check for the Write buffer to ensure that it is read-only.
@@ -972,8 +965,6 @@ void SlowioReadDirectoryThread(
* FSP_FILE_SYSTEM_INTERFACE
*/
static NTSTATUS Delete(FSP_FILE_SYSTEM *FileSystem,
PVOID FileNode0, PWSTR FileName, ULONG Flags);
#if defined(MEMFS_REPARSE_POINTS)
static NTSTATUS GetReparsePointByName(
FSP_FILE_SYSTEM *FileSystem, PVOID Context,
@@ -1356,9 +1347,7 @@ static VOID Cleanup(FSP_FILE_SYSTEM *FileSystem,
MEMFS_FILE_NODE *MainFileNode = FileNode;
#endif
#if !defined(MEMFS_DELETE)
assert(0 != Flags); /* FSP_FSCTL_VOLUME_PARAMS::PostCleanupWhenModifiedOnly ensures this */
#endif
if (Flags & FspCleanupSetArchiveBit)
{
@@ -1387,10 +1376,21 @@ static VOID Cleanup(FSP_FILE_SYSTEM *FileSystem,
SetFileSizeInternal(FileSystem, FileNode, AllocationSize, TRUE);
}
#if !defined(MEMFS_DELETE)
if (Flags & FspCleanupDelete)
Delete(FileSystem, FileNode0, FileName, -1);
if ((Flags & FspCleanupDelete) && !MemfsFileNodeMapHasChild(Memfs->FileNodeMap, FileNode))
{
#if defined(MEMFS_NAMED_STREAMS)
MEMFS_FILE_NODE_MAP_ENUM_CONTEXT Context = { FALSE };
ULONG Index;
MemfsFileNodeMapEnumerateNamedStreams(Memfs->FileNodeMap, FileNode,
MemfsFileNodeMapEnumerateFn, &Context);
for (Index = 0; Context.Count > Index; Index++)
MemfsFileNodeMapRemove(Memfs->FileNodeMap, Context.FileNodes[Index]);
MemfsFileNodeMapEnumerateFree(&Context);
#endif
MemfsFileNodeMapRemove(Memfs->FileNodeMap, FileNode);
}
}
static VOID Close(FSP_FILE_SYSTEM *FileSystem,
@@ -1651,13 +1651,17 @@ static NTSTATUS SetFileSize(FSP_FILE_SYSTEM *FileSystem,
return STATUS_SUCCESS;
}
#if !defined(MEMFS_DELETE)
static NTSTATUS CanDelete(FSP_FILE_SYSTEM *FileSystem,
PVOID FileNode0, PWSTR FileName)
{
return Delete(FileSystem, FileNode0, FileName, FILE_DISPOSITION_DELETE);
MEMFS *Memfs = (MEMFS *)FileSystem->UserContext;
MEMFS_FILE_NODE *FileNode = (MEMFS_FILE_NODE *)FileNode0;
if (MemfsFileNodeMapHasChild(Memfs->FileNodeMap, FileNode))
return STATUS_DIRECTORY_NOT_EMPTY;
return STATUS_SUCCESS;
}
#endif
static NTSTATUS Rename(FSP_FILE_SYSTEM *FileSystem,
PVOID FileNode0,
@@ -2227,54 +2231,6 @@ static NTSTATUS SetEa(FSP_FILE_SYSTEM *FileSystem,
}
#endif
static NTSTATUS Delete(FSP_FILE_SYSTEM *FileSystem,
PVOID FileNode0, PWSTR FileName, ULONG Flags)
{
MEMFS *Memfs = (MEMFS *)FileSystem->UserContext;
MEMFS_FILE_NODE *FileNode = (MEMFS_FILE_NODE *)FileNode0;
switch (Flags)
{
case FILE_DISPOSITION_DO_NOT_DELETE:
// set file disposition flag: do not delete file at Cleanup
return STATUS_SUCCESS;
case FILE_DISPOSITION_DELETE:
// set file disposition flag: delete file at Cleanup
if (MemfsFileNodeMapHasChild(Memfs->FileNodeMap, FileNode))
return STATUS_DIRECTORY_NOT_EMPTY;
return STATUS_SUCCESS;
case FILE_DISPOSITION_DELETE | FILE_DISPOSITION_POSIX_SEMANTICS:
// delete file now; open handles to file remain valid
/* fallthrough */
case -1:
// delete file now; called during Cleanup
if (MemfsFileNodeMapHasChild(Memfs->FileNodeMap, FileNode))
return STATUS_DIRECTORY_NOT_EMPTY;
else
{
#if defined(MEMFS_NAMED_STREAMS)
MEMFS_FILE_NODE_MAP_ENUM_CONTEXT Context = { FALSE };
ULONG Index;
MemfsFileNodeMapEnumerateNamedStreams(Memfs->FileNodeMap, FileNode,
MemfsFileNodeMapEnumerateFn, &Context);
for (Index = 0; Context.Count > Index; Index++)
MemfsFileNodeMapRemove(Memfs->FileNodeMap, Context.FileNodes[Index]);
MemfsFileNodeMapEnumerateFree(&Context);
#endif
MemfsFileNodeMapRemove(Memfs->FileNodeMap, FileNode);
return STATUS_SUCCESS;
}
default:
return STATUS_INVALID_PARAMETER;
}
}
static FSP_FILE_SYSTEM_INTERFACE MemfsInterface =
{
GetVolumeInfo,
@@ -2299,11 +2255,7 @@ static FSP_FILE_SYSTEM_INTERFACE MemfsInterface =
GetFileInfo,
SetBasicInfo,
SetFileSize,
#if !defined(MEMFS_DELETE)
CanDelete,
#else
0,
#endif
Rename,
GetSecurity,
SetSecurity,
@@ -2347,11 +2299,6 @@ static FSP_FILE_SYSTEM_INTERFACE MemfsInterface =
0,
0,
#endif
#if defined(MEMFS_DELETE)
Delete,
#else
0,
#endif
};
/*