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dll: FspFileSystemOpRead, FspFileSystemOpWrite

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This commit is contained in:
Bill Zissimopoulos
2016-03-04 22:45:14 -08:00
parent 8b9e8499aa
commit df1343cd9d
5 changed files with 91 additions and 5 deletions
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17
src/dll/dispatch.c
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@ -44,11 +44,13 @@ FSP_API NTSTATUS FspFileSystemCreate(PWSTR DevicePath,
FileSystem->Operations[FspFsctlTransactOverwriteKind] = FspFileSystemOpOverwrite;
FileSystem->Operations[FspFsctlTransactCleanupKind] = FspFileSystemOpCleanup;
FileSystem->Operations[FspFsctlTransactCloseKind] = FspFileSystemOpClose;
FileSystem->Operations[FspFsctlTransactReadKind] = FspFileSystemOpRead;
FileSystem->Operations[FspFsctlTransactWriteKind] = FspFileSystemOpWrite;
// !!!: ...
FileSystem->Operations[FspFsctlTransactQueryInformationKind] = FspFileSystemOpQueryInformation;
FileSystem->Operations[FspFsctlTransactSetInformationKind] = FspFileSystemOpSetInformation;
FileSystem->Operations[FspFsctlTransactQueryVolumeInformationKind] = FspFileSystemOpQueryVolumeInformation;
FileSystem->Operations[FspFsctlTransactSetVolumeInformationKind] = FspFileSystemOpSetVolumeInformation;
// !!!: ...
FileSystem->Operations[FspFsctlTransactQuerySecurityKind] = FspFileSystemOpQuerySecurity;
FileSystem->Operations[FspFsctlTransactSetSecurityKind] = FspFileSystemOpSetSecurity;
FileSystem->Interface = Interface;
@ -132,6 +134,8 @@ static DWORD WINAPI FspFileSystemDispatcherThread(PVOID FileSystem0)
Response->Hint = Request->Hint;
Response->IoStatus.Status = STATUS_INVALID_DEVICE_REQUEST;
}
else if (STATUS_PENDING == Response->IoStatus.Status)
memset(Response, 0, sizeof *Response);
else
{
memset((PUINT8)Response + Response->Size, 0, ResponseSize - Response->Size);
@ -194,3 +198,14 @@ FSP_API VOID FspFileSystemStopDispatcher(FSP_FILE_SYSTEM *FileSystem)
WaitForSingleObject(FileSystem->DispatcherThread, INFINITE);
CloseHandle(FileSystem->DispatcherThread);
}
FSP_API VOID FspFileSystemSendResponse(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_RSP *Response)
{
NTSTATUS Result;
Result = FspFsctlTransact(FileSystem->VolumeHandle,
Response, Response->Size, 0, 0, FALSE);
if (!NT_SUCCESS(Result))
FspFsctlStop(FileSystem->VolumeHandle);
}

59
src/dll/fsop.c
View File

@ -402,6 +402,65 @@ FSP_API NTSTATUS FspFileSystemOpClose(FSP_FILE_SYSTEM *FileSystem,
return STATUS_SUCCESS;
}
FSP_API NTSTATUS FspFileSystemOpRead(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response)
{
NTSTATUS Result;
ULONG BytesTransferred;
FSP_FSCTL_FILE_INFO FileInfo;
if (0 == FileSystem->Interface->Read)
return STATUS_INVALID_DEVICE_REQUEST;
Result = FileSystem->Interface->Read(FileSystem, Request,
(PVOID)Request->Req.Read.UserContext,
(PVOID)Request->Req.Read.Address,
Request->Req.Read.Offset,
Request->Req.Read.Length,
&BytesTransferred,
&FileInfo);
if (!NT_SUCCESS(Result))
return Result;
if (STATUS_PENDING != Result)
{
Response->IoStatus.Information = BytesTransferred;
memcpy(&Response->Rsp.Read.FileInfo, &FileInfo, sizeof FileInfo);
}
return Result;
}
FSP_API NTSTATUS FspFileSystemOpWrite(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response)
{
NTSTATUS Result;
ULONG BytesTransferred;
FSP_FSCTL_FILE_INFO FileInfo;
if (0 == FileSystem->Interface->Write)
return STATUS_INVALID_DEVICE_REQUEST;
Result = FileSystem->Interface->Write(FileSystem, Request,
(PVOID)Request->Req.Write.UserContext,
(PVOID)Request->Req.Write.Address,
Request->Req.Write.Offset,
Request->Req.Write.Length,
Request->Req.Write.Constrained,
&BytesTransferred,
&FileInfo);
if (!NT_SUCCESS(Result))
return Result;
if (STATUS_PENDING != Result)
{
Response->IoStatus.Information = BytesTransferred;
memcpy(&Response->Rsp.Read.FileInfo, &FileInfo, sizeof FileInfo);
}
return Result;
}
FSP_API NTSTATUS FspFileSystemOpQueryInformation(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FSCTL_TRANSACT_RSP *Response)
{