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Message-ID: <alpine.LRH.2.21.2010150746120.4000@namei.org>
Date: Thu, 15 Oct 2020 07:46:21 +1100 (AEDT)
From: James Morris <jmorris@...ei.org>
To: Mickaël Salaün <mic@...ikod.net>
cc: linux-kernel@...r.kernel.org, "Serge E . Hallyn" <serge@...lyn.com>,
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Mickaël Salaün <mic@...ux.microsoft.com>
Subject: Re: [PATCH v21 07/12] landlock: Support filesystem access-control
On Wed, 14 Oct 2020, Mickaël Salaün wrote:
>
> On 14/10/2020 20:52, Mickaël Salaün wrote:
> >
> > On 14/10/2020 20:07, James Morris wrote:
> >> On Thu, 8 Oct 2020, Mickaël Salaün wrote:
> >>
> >>> +config ARCH_EPHEMERAL_STATES
> >>> + def_bool n
> >>> + help
> >>> + An arch should select this symbol if it does not keep an internal kernel
> >>> + state for kernel objects such as inodes, but instead relies on something
> >>> + else (e.g. the host kernel for an UML kernel).
> >>> +
> >>
> >> This is used to disable Landlock for UML, correct?
> >
> > Yes
> >
> >> I wonder if it could be
> >> more specific: "ephemeral states" is a very broad term.
> >>
> >> How about something like ARCH_OWN_INODES ?
> >
> > Sounds good. We may need add new ones (e.g. for network socket, UID,
> > etc.) in the future though.
> >
>
> Because UML is the exception here, it would be more convenient to keep
> the inverted semantic. What about ARCH_NO_OWN_INODES or
> ARCH_EPHEMERAL_INODES?
The latter seems good.
--
James Morris
<jmorris@...ei.org>
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