netdev - Re: Userspace helper design

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Message-ID: <20180306215112.yn2ei6ypzo74hexv@ast-mbp.dhcp.thefacebook.com>
Date:   Tue, 6 Mar 2018 13:51:14 -0800
From:   Alexei Starovoitov <alexei.starovoitov@...il.com>
To:     Sargun Dhillon <sargun@...gun.me>
Cc:     Daniel Borkmann <daniel@...earbox.net>,
        Linux Containers <containers@...ts.linux-foundation.org>,
        netdev <netdev@...r.kernel.org>,
        Kees Cook <keescook@...omium.org>,
        Tycho Andersen <tycho@...ho.ws>
Subject: Re: Userspace helper design

On Tue, Mar 06, 2018 at 01:14:30PM -0800, Sargun Dhillon wrote:
> 
> So, would this verifier just ensure that no maps are accessed prior to
> the helper being called, XOR ensure that after the helper is called,
> no map values are accessed?

Nack on this design.