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dll: FSP_FILE_SYSTEM: EnterOperation, LeaveOperation

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This commit is contained in:
Bill Zissimopoulos 2015-12-31 17:01:27 -08:00
parent dd259ad45c
commit 8e2ed419f0
2 changed files with 25 additions and 4 deletions
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16
inc/winfsp/winfsp.h
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@ -30,8 +30,9 @@ typedef struct _FSP_FILE_SYSTEM
WCHAR VolumePath[FSP_FSCTL_VOLUME_NAME_SIZEMAX / sizeof(WCHAR)]; WCHAR VolumePath[FSP_FSCTL_VOLUME_NAME_SIZEMAX / sizeof(WCHAR)];
HANDLE VolumeHandle; HANDLE VolumeHandle;
PVOID UserContext; PVOID UserContext;
FSP_FILE_SYSTEM_DISPATCHER *Dispatcher;
NTSTATUS DispatcherResult; NTSTATUS DispatcherResult;
FSP_FILE_SYSTEM_DISPATCHER *Dispatcher;
FSP_FILE_SYSTEM_DISPATCHER *EnterOperation, *LeaveOperation;
FSP_FILE_SYSTEM_OPERATION *Operations[FspFsctlTransactKindCount]; FSP_FILE_SYSTEM_OPERATION *Operations[FspFsctlTransactKindCount];
} FSP_FILE_SYSTEM; } FSP_FILE_SYSTEM;
@ -61,6 +62,19 @@ static VOID FspFileSystemSetDispatcherResult(FSP_FILE_SYSTEM *FileSystem,
InterlockedCompareExchange(&FileSystem->DispatcherResult, DispatcherResult, 0); InterlockedCompareExchange(&FileSystem->DispatcherResult, DispatcherResult, 0);
} }
static VOID FspFileSystemEnterOperation(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request)
{
if (0 != FileSystem->EnterOperation)
FileSystem->EnterOperation(FileSystem, Request);
}
static VOID FspFileSystemLeaveOperation(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request)
{
if (0 != FileSystem->LeaveOperation)
FileSystem->LeaveOperation(FileSystem, Request);
}
FSP_API NTSTATUS FspSendResponse(FSP_FILE_SYSTEM *FileSystem, FSP_API NTSTATUS FspSendResponse(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_RSP *Response); FSP_FSCTL_TRANSACT_RSP *Response);
FSP_API NTSTATUS FspSendResponseWithStatus(FSP_FILE_SYSTEM *FileSystem, FSP_API NTSTATUS FspSendResponseWithStatus(FSP_FILE_SYSTEM *FileSystem,

13
src/dll/loop.c
View File

@ -99,7 +99,11 @@ FSP_API VOID FspFileSystemDirectDispatcher(FSP_FILE_SYSTEM *FileSystem,
if (FspFsctlTransactKindCount <= Request->Kind || 0 == FileSystem->Operations[Request->Kind]) if (FspFsctlTransactKindCount <= Request->Kind || 0 == FileSystem->Operations[Request->Kind])
DispatcherResult = FspSendResponseWithStatus(FileSystem, Request, STATUS_INVALID_DEVICE_REQUEST); DispatcherResult = FspSendResponseWithStatus(FileSystem, Request, STATUS_INVALID_DEVICE_REQUEST);
else else
{
FspFileSystemEnterOperation(FileSystem, Request);
DispatcherResult = FileSystem->Operations[Request->Kind](FileSystem, Request); DispatcherResult = FileSystem->Operations[Request->Kind](FileSystem, Request);
FspFileSystemLeaveOperation(FileSystem, Request);
}
FspFileSystemSetDispatcherResult(FileSystem, DispatcherResult); FspFileSystemSetDispatcherResult(FileSystem, DispatcherResult);
} }
@ -108,12 +112,15 @@ static DWORD WINAPI FspFileSystemPoolDispatcherWorker(PVOID Param)
{ {
NTSTATUS DispatcherResult; NTSTATUS DispatcherResult;
FSP_DISPATCHER_WORK_ITEM *WorkItem = Param; FSP_DISPATCHER_WORK_ITEM *WorkItem = Param;
FSP_FILE_SYSTEM *FileSystem = WorkItem->FileSystem;
FSP_FSCTL_TRANSACT_REQ *Request = (PVOID)WorkItem->RequestBuf; FSP_FSCTL_TRANSACT_REQ *Request = (PVOID)WorkItem->RequestBuf;
DispatcherResult = WorkItem->FileSystem->Operations[Request->Kind](WorkItem->FileSystem, Request); FspFileSystemEnterOperation(FileSystem, Request);
MemFree(WorkItem); DispatcherResult = FileSystem->Operations[Request->Kind](FileSystem, Request);
FspFileSystemLeaveOperation(FileSystem, Request);
FspFileSystemSetDispatcherResult(FileSystem, DispatcherResult);
FspFileSystemSetDispatcherResult(WorkItem->FileSystem, DispatcherResult); MemFree(WorkItem);
return 0; return 0;
} }