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sys: FspFileSystemCreate/FspFileSystemDelete

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This commit is contained in:
Bill Zissimopoulos 2015-12-15 13:31:41 -08:00
parent 44a17d0b4d
commit f3b87304e8
2 changed files with 42 additions and 12 deletions
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15
inc/winfsp/winfsp.h
View File

@ -22,18 +22,21 @@
#include <winfsp/fsctl.h> #include <winfsp/fsctl.h>
typedef struct _FSP_FILE_SYSTEM FSP_FILE_SYSTEM; typedef struct _FSP_FILE_SYSTEM FSP_FILE_SYSTEM;
typedef NTSTATUS FSP_FILE_SYSTEM_PR(FSP_FILE_SYSTEM *, FSP_FSCTL_TRANSACT_REQ *); typedef NTSTATUS FSP_FILE_SYSTEM_PROCESSREQ(FSP_FILE_SYSTEM *, FSP_FSCTL_TRANSACT_REQ *);
typedef VOID FSP_FILE_SYSTEM_OP(FSP_FILE_SYSTEM *, FSP_FSCTL_TRANSACT_REQ *); typedef VOID FSP_FILE_SYSTEM_OPERATION(FSP_FILE_SYSTEM *, FSP_FSCTL_TRANSACT_REQ *);
typedef struct _FSP_FILE_SYSTEM typedef struct _FSP_FILE_SYSTEM
{ {
/* private */
UINT16 Version; UINT16 Version;
PVOID UserContext;
HANDLE VolumeHandle; HANDLE VolumeHandle;
FSP_FILE_SYSTEM_PR *ProcessRequest; FSP_FILE_SYSTEM_PROCESSREQ *ProcessRequest;
FSP_FILE_SYSTEM_OP *Operations[FspFsctlTransactKindCount]; /* public */
PVOID UserContext;
FSP_FILE_SYSTEM_OPERATION *Operations[FspFsctlTransactKindCount];
} FSP_FILE_SYSTEM; } FSP_FILE_SYSTEM;
FSP_API NTSTATUS FspFileSystemCreate(FSP_FILE_SYSTEM_PR *ProcessRequest, FSP_API NTSTATUS FspFileSystemCreate(PWSTR DevicePath,
const FSP_FSCTL_VOLUME_PARAMS *Params, FSP_FILE_SYSTEM_PROCESSREQ *ProcessRequest,
FSP_FILE_SYSTEM **PFileSystem); FSP_FILE_SYSTEM **PFileSystem);
FSP_API VOID FspFileSystemDelete(FSP_FILE_SYSTEM *FileSystem); FSP_API VOID FspFileSystemDelete(FSP_FILE_SYSTEM *FileSystem);
FSP_API NTSTATUS FspFileSystemLoop(FSP_FILE_SYSTEM *FileSystem); FSP_API NTSTATUS FspFileSystemLoop(FSP_FILE_SYSTEM *FileSystem);

39
src/dll/loop.c
View File

@ -12,30 +12,57 @@ typedef struct _FSP_WORK_ITEM
__declspec(align(MEMORY_ALLOCATION_ALIGNMENT)) UINT8 RequestBuf[]; __declspec(align(MEMORY_ALLOCATION_ALIGNMENT)) UINT8 RequestBuf[];
} FSP_WORK_ITEM; } FSP_WORK_ITEM;
FSP_API NTSTATUS FspFileSystemCreate(FSP_FILE_SYSTEM_PR *ProcessRequest, FSP_API NTSTATUS FspFileSystemCreate(PWSTR DevicePath,
const FSP_FSCTL_VOLUME_PARAMS *Params, FSP_FILE_SYSTEM_PROCESSREQ *ProcessRequest,
FSP_FILE_SYSTEM **PFileSystem) FSP_FILE_SYSTEM **PFileSystem)
{ {
FSP_FILE_SYSTEM *FileSystem; NTSTATUS Result;
WCHAR VolumePathBuf[MAX_PATH];
HANDLE VolumeHandle = INVALID_HANDLE_VALUE;
FSP_FILE_SYSTEM *FileSystem = 0;
*PFileSystem = 0; *PFileSystem = 0;
if (0 == ProcessRequest) if (0 == ProcessRequest)
return STATUS_INVALID_PARAMETER; ProcessRequest = FspProcessRequestDirect;
FileSystem = malloc(sizeof *FileSystem); FileSystem = malloc(sizeof *FileSystem);
if (0 == FileSystem) if (0 == FileSystem)
return STATUS_INSUFFICIENT_RESOURCES; {
Result = STATUS_INSUFFICIENT_RESOURCES;
goto exit;
}
Result = FspFsctlCreateVolume(DevicePath, Params, 0, VolumePathBuf, sizeof VolumePathBuf);
if (!NT_SUCCESS(Result))
goto exit;
Result = FspFsctlOpenVolume(VolumePathBuf, &VolumeHandle);
if (!NT_SUCCESS(Result))
goto exit;
memset(FileSystem, 0, sizeof *FileSystem); memset(FileSystem, 0, sizeof *FileSystem);
FileSystem->VolumeHandle = VolumeHandle;
FileSystem->ProcessRequest = ProcessRequest; FileSystem->ProcessRequest = ProcessRequest;
*PFileSystem = FileSystem; *PFileSystem = FileSystem;
return STATUS_SUCCESS; Result = STATUS_SUCCESS;
exit:
if (!NT_SUCCESS(Result))
{
if (INVALID_HANDLE_VALUE != VolumeHandle)
CloseHandle(VolumeHandle);
free(FileSystem);
}
return Result;
} }
FSP_API VOID FspFileSystemDelete(FSP_FILE_SYSTEM *FileSystem) FSP_API VOID FspFileSystemDelete(FSP_FILE_SYSTEM *FileSystem)
{ {
if (INVALID_HANDLE_VALUE != FileSystem->VolumeHandle)
CloseHandle(FileSystem->VolumeHandle);
free(FileSystem); free(FileSystem);
} }