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sys: IRP_MJ_CLOSE

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This commit is contained in:
Bill Zissimopoulos 2015-12-07 23:52:31 -08:00
parent af1cecf26a
commit 154a945c9a
1 changed files with 57 additions and 1 deletions
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58
src/sys/close.c
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@ -48,7 +48,63 @@ static NTSTATUS FspFsvolClose(
{
PAGED_CODE();
return STATUS_INVALID_DEVICE_REQUEST;
NTSTATUS Result;
FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension = FspFsvolDeviceExtension(DeviceObject);
PDEVICE_OBJECT FsvrtDeviceObject = FsvolDeviceExtension->FsvrtDeviceObject;
if (!FspDeviceRetain(FsvrtDeviceObject))
return STATUS_CANCELLED;
try
{
FSP_FSVRT_DEVICE_EXTENSION *FsvrtDeviceExtension =
FspFsvrtDeviceExtension(FsvrtDeviceObject);
PFILE_OBJECT FileObject = IrpSp->FileObject;
FSP_FILE_CONTEXT *FsContext = FileObject->FsContext;
BOOLEAN FileNameRequired = 0 != FsvrtDeviceExtension->VolumeParams.FileNameRequired;
FSP_FSCTL_TRANSACT_REQ *Request;
/* dereference the FsContext (and delete if no more references) */
FspFileContextRelease(FsContext);
/* create the user-mode file system request */
Result = FspIopCreateRequest(Irp, FileNameRequired ? &FsContext->FileName : 0, 0, &Request);
if (!NT_SUCCESS(Result))
{
/* IRP_MJ_CLOSE cannot really fail :-\ */
Result = STATUS_SUCCESS;
goto exit;
}
/*
* The new request is associated with our IRP and will be deleted during its completion.
*/
/* populate the Close request */
Request->Kind = FspFsctlTransactCloseKind;
Request->Req.Cleanup.UserContext = FsContext->UserContext;
Request->Req.Cleanup.UserContext2 = (UINT_PTR)FileObject->FsContext2;
Request->Req.Cleanup.Delete = DeletePending && 0 == OpenCount;
/* post as a work request; this allows us to complete our own IRP and return immediately! */
if (!FspIopPostWorkRequest(DeviceObject, Request))
{
/* no need to delete the request here as FspIopPostWorkRequest() will do so in all cases */
/* IRP_MJ_CLOSE cannot really fail :-\ */
Result = STATUS_SUCCESS;
goto exit;
}
Result = STATUS_SUCCESS;
exit:;
}
finally
{
FspDeviceRelease(FsvrtDeviceObject);
}
return Result;
}
VOID FspFsvolCloseComplete(