Re: [PATCH v3 0/1] MR498: server: Allow creating named pipes using \Device\NamedPipe\ as RootDirectory. (#52105)

[Zebediah Figura (＠zfigura)]

> > presumably using OBJ_OPENIF to distinguish the two.
>
> I'm not sure about that.
> - Interposing different semantics to `attr` is in-band signaling.
> - Note that native ignores `OBJ_OPENIF` entirely IIRC (you can't create a file normally there). If we want to use it for internal purposes, we would want to *special case* NPFS and then filter that flag out.

I misremember, it's not OBJ_OPENIF that does this exactly, it's FILE_CREATE / FILE_OPEN_IF. That'd have to be plumbed.
> - Also, `open_file` doesn't accept `attr`. Or perhaps, did you mean for me to extend it?

Combining lookup_name() and open_file() would imply passing attr, yes.