FltGetFileNameInformation on MailSlot

Hi, I’m trying to apply FltGetFileNameInformation when opening MailSlot, as a result I get STATUS_OBJECT_NAME_INVALID

Can you tell me what it may be related to?

This code works with NamedPipe

PFLT_FILE_NAME_INFORMATION NameInformation;

status = FltGetFileNameInformation(
		Data,
		FLT_FILE_NAME_NORMALIZED | FLT_FILE_NAME_QUERY_DEFAULT,
		&NameInformation);

In user space app call

DesiredAccess = 0x80140000	
ObjectAttributes.RootDirectory = NULL
ObjectAttributes.ObjectName = {Length=0x0024 MaximumLength=0x0026 Buffer=0x090b39c0 L"\\??\\mailslot\\Lilo1" }	_UNICODE_STRING *
CreateOptions = FILE_WRITE_THROUGH
MailslotQuota = 0
MaxMessageSize = 0
ReadTimeOut = 0xffffffff

NtCreateMailslotFile(
		MailslotFileHandle,
		DesiredAccess,
		ObjectAttributes,
		IoStatusBlock,
		CreateOptions,
		MailslotQuota,
		MaxMessageSize,
		ReadTimeOut);

Okey, I solved wthis
MailSlots unsupport FLT_FILE_NAME_NORMALIZED
It is written about this here https://community.osr.com/discussion/71813/re-fltgetfilenameinformation-returns-invalid-device-request-for-named

PFLT_FILE_NAME_INFORMATION NameInformation;

status = FltGetFileNameInformation(
        Data,
        FLT_FILE_NAME_NORMALIZED | FLT_FILE_NAME_QUERY_DEFAULT,
        &NameInformation);

	// test if mailslot
	// mailslots unsupport FLT_FILE_NAME_NORMALIZED
	if (!NT_SUCCESS(status)) {
		status = FltGetFileNameInformation(
			Data,
			FLT_FILE_NAME_OPENED | FLT_FILE_NAME_QUERY_DEFAULT,
			&NameInformation);
	}

Admin, can you close discussion?