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tst: passthrough file system: WIP

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Bill Zissimopoulos 2017-01-20 12:38:25 -08:00
parent 2809f56217
commit d519145f61
1 changed files with 15 additions and 46 deletions
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61
tst/passthrough/passthrough.c
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@ -161,7 +161,7 @@ static NTSTATUS Create(FSP_FILE_SYSTEM *FileSystem,
SecurityAttributes.bInheritHandle = FALSE; SecurityAttributes.bInheritHandle = FALSE;
/* /*
* It is not widely known but CreateFile can be used to create directories! * It is not widely known but CreateFileW can be used to create directories!
* It requires the specification of both FILE_FLAG_BACKUP_SEMANTICS and * It requires the specification of both FILE_FLAG_BACKUP_SEMANTICS and
* FILE_FLAG_POSIX_SEMANTICS. It also requires that FileAttributes has * FILE_FLAG_POSIX_SEMANTICS. It also requires that FileAttributes has
* FILE_ATTRIBUTE_DIRECTORY set. * FILE_ATTRIBUTE_DIRECTORY set.
@ -248,6 +248,9 @@ static NTSTATUS Overwrite(FSP_FILE_SYSTEM *FileSystem,
static VOID Cleanup(FSP_FILE_SYSTEM *FileSystem, static VOID Cleanup(FSP_FILE_SYSTEM *FileSystem,
PVOID FileContext, PWSTR FileName, ULONG Flags) PVOID FileContext, PWSTR FileName, ULONG Flags)
{ {
if (Flags & FspCleanupDelete)
{
}
} }
static VOID Close(FSP_FILE_SYSTEM *FileSystem, static VOID Close(FSP_FILE_SYSTEM *FileSystem,
@ -391,54 +394,16 @@ static NTSTATUS SetFileSize(FSP_FILE_SYSTEM *FileSystem,
static NTSTATUS CanDelete(FSP_FILE_SYSTEM *FileSystem, static NTSTATUS CanDelete(FSP_FILE_SYSTEM *FileSystem,
PVOID FileContext, PWSTR FileName) PVOID FileContext, PWSTR FileName)
{ {
PTFS *Ptfs = (PTFS *)FileSystem->UserContext;
HANDLE Handle = FileContext; HANDLE Handle = FileContext;
WCHAR FullPath[FULLPATH_SIZE]; FILE_DISPOSITION_INFO DispositionInfo;
ULONG Length;
FILE_ATTRIBUTE_TAG_INFO AttributeTagInfo;
HANDLE FindHandle;
WIN32_FIND_DATAW FindData;
BOOL HasChild;
if (!GetFileInformationByHandleEx(Handle, DispositionInfo.DeleteFile = TRUE;
FileAttributeTagInfo, &AttributeTagInfo, sizeof AttributeTagInfo))
if (!SetFileInformationByHandle(Handle,
FileDispositionInfo, &DispositionInfo, sizeof DispositionInfo))
return FspNtStatusFromWin32(GetLastError()); return FspNtStatusFromWin32(GetLastError());
if (0 == (AttributeTagInfo.FileAttributes & FILE_ATTRIBUTE_DIRECTORY)) return STATUS_SUCCESS;
return STATUS_SUCCESS;
if (!ConcatPath(Ptfs, FileName, FullPath))
return STATUS_OBJECT_NAME_INVALID;
Length = (ULONG)wcslen(FullPath);
if (Length + 1 + 1 >= FULLPATH_SIZE)
return STATUS_OBJECT_NAME_INVALID;
if (L'\\' != FullPath[Length - 1])
FullPath[Length++] = L'\\';
FullPath[Length] = L'*';
FullPath[Length + 1] = L'\0';
FindHandle = FindFirstFileW(FullPath, &FindData);
if (INVALID_HANDLE_VALUE == FindHandle)
return FspNtStatusFromWin32(GetLastError());
HasChild = FALSE;
do
{
if (L'.' == FindData.cFileName[0] && (L'\0' == FindData.cFileName[1] ||
(L'.' == FindData.cFileName[1] && L'\0' == FindData.cFileName[2])))
;
else
{
HasChild = TRUE;
break;
}
} while (FindNextFileW(FindHandle, &FindData));
FindClose(FindHandle);
return HasChild ? STATUS_DIRECTORY_NOT_EMPTY : STATUS_SUCCESS;
} }
static NTSTATUS Rename(FSP_FILE_SYSTEM *FileSystem, static NTSTATUS Rename(FSP_FILE_SYSTEM *FileSystem,
@ -516,7 +481,11 @@ static NTSTATUS ReadDirectory(FSP_FILE_SYSTEM *FileSystem,
FindHandle = FindFirstFileW(FullPath, &FindData); FindHandle = FindFirstFileW(FullPath, &FindData);
if (INVALID_HANDLE_VALUE == FindHandle) if (INVALID_HANDLE_VALUE == FindHandle)
return FspNtStatusFromWin32(GetLastError()); {
/* add "End-Of-Listing" marker */
FspFileSystemAddDirInfo(0, Buffer, BufferLength, PBytesTransferred);
return STATUS_SUCCESS;
}
for (;;) for (;;)
{ {