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dll: overwrite refactoring
This commit is contained in:
Bill Zissimopoulos
parent
7e1883044b
commit
3eae5bc726
@ -178,205 +178,4 @@ FSP_API VOID FspPathCombine(PWSTR Prefix, PWSTR Suffix);
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*/
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FSP_API NTSTATUS FspNtStatusFromWin32(DWORD Error);
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FSP_API VOID FspDebugLog(const char *format, ...);
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#if 0
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/*
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* File Nodes
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*/
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typedef struct _FSP_FILE_NODE
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{
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/* public */
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PVOID UserContext;
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UINT64 AllocationSize;
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UINT64 FileSize;
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/* private */
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CRITICAL_SECTION CriticalSection;
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LONG OpenCount;
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struct
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{
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BOOLEAN DeleteOnClose:1;
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BOOLEAN DeletePending:1;
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} Flags;
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struct
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{
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ULONG OpenCount;
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ULONG Readers;
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ULONG Writers;
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ULONG Deleters;
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ULONG SharedRead;
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ULONG SharedWrite;
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ULONG SharedDelete;
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} ShareAccess;
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} FSP_FILE_NODE;
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static inline
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VOID FspFileNodeInit(FSP_FILE_NODE *FileNode)
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{
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memset(FileNode, 0, sizeof *FileNode);
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InitializeCriticalSection(&FileNode->CriticalSection);
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}
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static inline
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VOID FspFileNodeFini(FSP_FILE_NODE *FileNode)
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{
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DeleteCriticalSection(&FileNode->CriticalSection);
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}
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static inline
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VOID FspFileNodeLock(FSP_FILE_NODE *FileNode)
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{
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EnterCriticalSection(&FileNode->CriticalSection);
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}
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static inline
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VOID FspFileNodeUnlock(FSP_FILE_NODE *FileNode)
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{
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LeaveCriticalSection(&FileNode->CriticalSection);
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}
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static inline
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VOID FspFileNodeOpen(FSP_FILE_NODE *FileNode)
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{
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InterlockedIncrement(&FileNode->OpenCount);
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}
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static inline
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LONG FspFileNodeClose(FSP_FILE_NODE *FileNode)
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{
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return InterlockedDecrement(&FileNode->OpenCount);
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}
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/*
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* File System
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*/
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typedef struct _FSP_FILE_SYSTEM FSP_FILE_SYSTEM;
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typedef VOID FSP_FILE_SYSTEM_DISPATCHER(FSP_FILE_SYSTEM *, FSP_FSCTL_TRANSACT_REQ *);
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typedef NTSTATUS FSP_FILE_SYSTEM_OPERATION(FSP_FILE_SYSTEM *, FSP_FSCTL_TRANSACT_REQ *);
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typedef struct _FSP_FILE_SYSTEM_INTERFACE
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{
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NTSTATUS (*GetSecurity)(FSP_FILE_SYSTEM *FileSystem,
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PWSTR FileName, PDWORD PFileAttributes,
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PSECURITY_DESCRIPTOR SecurityDescriptor, SIZE_T *PSecurityDescriptorSize);
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NTSTATUS (*Create)(FSP_FILE_SYSTEM *FileSystem,
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FSP_FSCTL_TRANSACT_REQ *Request, FSP_FILE_NODE **PFileNode);
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NTSTATUS (*Open)(FSP_FILE_SYSTEM *FileSystem,
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FSP_FSCTL_TRANSACT_REQ *Request, FSP_FILE_NODE **PFileNode);
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NTSTATUS (*Overwrite)(FSP_FILE_SYSTEM *FileSystem,
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FSP_FSCTL_TRANSACT_REQ *Request, BOOLEAN ReplaceFileAttributes, FSP_FILE_NODE *FileNode);
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VOID (*Cleanup)(FSP_FILE_SYSTEM *FileSystem,
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FSP_FSCTL_TRANSACT_REQ *Request, FSP_FILE_NODE *FileNode, BOOLEAN Delete);
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VOID (*Close)(FSP_FILE_SYSTEM *FileSystem,
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FSP_FSCTL_TRANSACT_REQ *Request, FSP_FILE_NODE *FileNode);
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} FSP_FILE_SYSTEM_INTERFACE;
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typedef struct _FSP_FILE_SYSTEM
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{
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UINT16 Version;
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WCHAR VolumePath[FSP_FSCTL_VOLUME_NAME_SIZEMAX / sizeof(WCHAR)];
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HANDLE VolumeHandle;
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PVOID UserContext;
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NTSTATUS DispatcherResult;
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FSP_FILE_SYSTEM_DISPATCHER *Dispatcher;
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FSP_FILE_SYSTEM_DISPATCHER *EnterOperation, *LeaveOperation;
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FSP_FILE_SYSTEM_OPERATION *Operations[FspFsctlTransactKindCount];
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const FSP_FILE_SYSTEM_INTERFACE *Interface;
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} FSP_FILE_SYSTEM;
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FSP_API NTSTATUS FspFileSystemCreate(PWSTR DevicePath,
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const FSP_FSCTL_VOLUME_PARAMS *VolumeParams,
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const FSP_FILE_SYSTEM_INTERFACE *Interface,
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FSP_FILE_SYSTEM **PFileSystem);
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FSP_API VOID FspFileSystemDelete(FSP_FILE_SYSTEM *FileSystem);
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FSP_API NTSTATUS FspFileSystemLoop(FSP_FILE_SYSTEM *FileSystem);
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FSP_API VOID FspFileSystemDirectDispatcher(FSP_FILE_SYSTEM *FileSystem,
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FSP_FSCTL_TRANSACT_REQ *Request);
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FSP_API VOID FspFileSystemPoolDispatcher(FSP_FILE_SYSTEM *FileSystem,
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FSP_FSCTL_TRANSACT_REQ *Request);
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static inline
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VOID FspFileSystemSetDispatcher(FSP_FILE_SYSTEM *FileSystem,
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FSP_FILE_SYSTEM_DISPATCHER *Dispatcher,
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FSP_FILE_SYSTEM_DISPATCHER *EnterOperation,
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FSP_FILE_SYSTEM_DISPATCHER *LeaveOperation)
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{
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FileSystem->Dispatcher = Dispatcher;
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FileSystem->EnterOperation = EnterOperation;
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FileSystem->LeaveOperation = LeaveOperation;
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}
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static inline
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VOID FspFileSystemSetOperation(FSP_FILE_SYSTEM *FileSystem,
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ULONG Index,
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FSP_FILE_SYSTEM_OPERATION *Operation)
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{
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FileSystem->Operations[Index] = Operation;
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}
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static inline
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VOID FspFileSystemGetDispatcherResult(FSP_FILE_SYSTEM *FileSystem,
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NTSTATUS *PDispatcherResult)
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{
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/* 32-bit reads are atomic */
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*PDispatcherResult = FileSystem->DispatcherResult;
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MemoryBarrier();
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}
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static inline
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VOID FspFileSystemSetDispatcherResult(FSP_FILE_SYSTEM *FileSystem,
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NTSTATUS DispatcherResult)
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{
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if (NT_SUCCESS(DispatcherResult))
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return;
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InterlockedCompareExchange(&FileSystem->DispatcherResult, DispatcherResult, 0);
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}
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static inline
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VOID FspFileSystemEnterOperation(FSP_FILE_SYSTEM *FileSystem,
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FSP_FSCTL_TRANSACT_REQ *Request)
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{
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if (0 != FileSystem->EnterOperation)
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FileSystem->EnterOperation(FileSystem, Request);
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}
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static inline
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VOID FspFileSystemLeaveOperation(FSP_FILE_SYSTEM *FileSystem,
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FSP_FSCTL_TRANSACT_REQ *Request)
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{
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if (0 != FileSystem->LeaveOperation)
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FileSystem->LeaveOperation(FileSystem, Request);
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}
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FSP_API NTSTATUS FspFileSystemSendResponse(FSP_FILE_SYSTEM *FileSystem,
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FSP_FSCTL_TRANSACT_RSP *Response);
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FSP_API NTSTATUS FspFileSystemSendResponseWithStatus(FSP_FILE_SYSTEM *FileSystem,
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FSP_FSCTL_TRANSACT_REQ *Request, NTSTATUS Result);
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/*
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* File System Operations
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*/
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FSP_API PGENERIC_MAPPING FspGetFileGenericMapping(VOID);
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FSP_API NTSTATUS FspAccessCheck(FSP_FILE_SYSTEM *FileSystem,
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FSP_FSCTL_TRANSACT_REQ *Request, BOOLEAN CheckParentDirectory, BOOLEAN AllowTraverseCheck,
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DWORD DesiredAccess, PDWORD PGrantedAccess);
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FSP_API NTSTATUS FspShareAccessCheck(FSP_FILE_SYSTEM *FileSystem,
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FSP_FSCTL_TRANSACT_REQ *Request, DWORD GrantedAccess, FSP_FILE_NODE *FileNode);
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FSP_API VOID FspShareAccessRemove(FSP_FILE_SYSTEM *FileSystem,
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FSP_FSCTL_TRANSACT_REQ *Request, FSP_FILE_NODE *FileNode);
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FSP_API NTSTATUS FspFileSystemPreCreateCheck(FSP_FILE_SYSTEM *FileSystem,
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FSP_FSCTL_TRANSACT_REQ *Request, BOOLEAN AllowTraverseCheck, PDWORD PGrantedAccess);
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FSP_API VOID FspFileSystemPostCreateCheck(FSP_FILE_SYSTEM *FileSystem,
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FSP_FSCTL_TRANSACT_REQ *Request, DWORD GrantedAccess, FSP_FILE_NODE *FileNode);
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FSP_API NTSTATUS FspFileSystemPreOpenCheck(FSP_FILE_SYSTEM *FileSystem,
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FSP_FSCTL_TRANSACT_REQ *Request, BOOLEAN AllowTraverseCheck, PDWORD PGrantedAccess);
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FSP_API NTSTATUS FspFileSystemPostOpenCheck(FSP_FILE_SYSTEM *FileSystem,
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FSP_FSCTL_TRANSACT_REQ *Request, DWORD GrantedAccess, FSP_FILE_NODE *FileNode);
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FSP_API NTSTATUS FspFileSystemPreOverwriteCheck(FSP_FILE_SYSTEM *FileSystem,
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FSP_FSCTL_TRANSACT_REQ *Request, BOOLEAN AllowTraverseCheck, PDWORD PGrantedAccess);
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FSP_API NTSTATUS FspFileSystemPostOverwriteCheck(FSP_FILE_SYSTEM *FileSystem,
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FSP_FSCTL_TRANSACT_REQ *Request, DWORD GrantedAccess, FSP_FILE_NODE *FileNode);
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FSP_API NTSTATUS FspFileSystemOpCreate(FSP_FILE_SYSTEM *FileSystem,
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FSP_FSCTL_TRANSACT_REQ *Request);
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FSP_API NTSTATUS FspFileSystemOpCleanup(FSP_FILE_SYSTEM *FileSystem,
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FSP_FSCTL_TRANSACT_REQ *Request);
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FSP_API NTSTATUS FspFileSystemOpClose(FSP_FILE_SYSTEM *FileSystem,
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FSP_FSCTL_TRANSACT_REQ *Request);
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FSP_API NTSTATUS FspFileSystemSendCreateResponse(FSP_FILE_SYSTEM *FileSystem,
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FSP_FSCTL_TRANSACT_REQ *Request, UINT_PTR Information,
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FSP_FILE_NODE *FileNode, DWORD GrantedAccess);
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FSP_API NTSTATUS FspFileSystemSendCloseResponse(FSP_FILE_SYSTEM *FileSystem,
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FSP_FSCTL_TRANSACT_REQ *Request);
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FSP_API NTSTATUS FspFileSystemSendCleanupResponse(FSP_FILE_SYSTEM *FileSystem,
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FSP_FSCTL_TRANSACT_REQ *Request);
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#endif
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#endif
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