linux-kernel - Re: [PATCH bpf-next v1 00/13] MAC and Audit policy using eBPF (KRSI)

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Message-ID: <201912301128.B37D55AB44@keescook>
Date:   Mon, 30 Dec 2019 11:30:19 -0800
From:   Kees Cook <keescook@...omium.org>
To:     Mickaël Salaün <mic@...ikod.net>
Cc:     KP Singh <kpsingh@...omium.org>, linux-kernel@...r.kernel.org,
        bpf@...r.kernel.org, linux-security-module@...r.kernel.org,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        James Morris <jmorris@...ei.org>,
        Thomas Garnier <thgarnie@...omium.org>,
        Michael Halcrow <mhalcrow@...gle.com>,
        Paul Turner <pjt@...gle.com>,
        Brendan Gregg <brendan.d.gregg@...il.com>,
        Jann Horn <jannh@...gle.com>,
        Matthew Garrett <mjg59@...gle.com>,
        Christian Brauner <christian@...uner.io>,
        Florent Revest <revest@...omium.org>,
        Brendan Jackman <jackmanb@...omium.org>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        "Serge E. Hallyn" <serge@...lyn.com>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Stanislav Fomichev <sdf@...gle.com>,
        Quentin Monnet <quentin.monnet@...ronome.com>,
        Andrey Ignatov <rdna@...com>, Joe Stringer <joe@...d.net.nz>,
        Mickaël Salaün <mickael.salaun@....gouv.fr>
Subject: Re: [PATCH bpf-next v1 00/13] MAC and Audit policy using eBPF (KRSI)

On Fri, Dec 20, 2019 at 11:46:47PM +0100, Mickaël Salaün wrote:
> I'm working on a version of Landlock without eBPF, but still with the
> initial sought properties: safe unprivileged composability, modularity, and
> dynamic update. I'll send this version soon.
> 
> I hope that the work and experience from Landlock to bring eBPF to LSM will
> continue to be used through KRSI. Landlock will now focus on the
> unprivileged sandboxing part, without eBPF. Stay tuned!

Will it end up looking at all like pledge? I'm still struggling to come
up with a sensible pledge-like design on top of seccomp, especially
given the need to have it very closely tied to the running libc...

-- 
Kees Cook