linux-kernel - Re: [PATCH v7 0/6] seccomp trap to userspace

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Message-ID: <20180928220359.GF18045@cisco.lan>
Date:   Fri, 28 Sep 2018 16:03:59 -0600
From:   Tycho Andersen <tycho@...ho.ws>
To:     "Michael Kerrisk (man-opages)" <mtk.manpages@...il.com>
Cc:     Kees Cook <keescook@...omium.org>, linux-kernel@...r.kernel.org,
        containers@...ts.linux-foundation.org, linux-api@...r.kernel.org,
        Andy Lutomirski <luto@...capital.net>,
        Oleg Nesterov <oleg@...hat.com>,
        "Eric W . Biederman" <ebiederm@...ssion.com>,
        "Serge E . Hallyn" <serge@...lyn.com>,
        Christian Brauner <christian.brauner@...ntu.com>,
        Tyler Hicks <tyhicks@...onical.com>,
        Akihiro Suda <suda.akihiro@....ntt.co.jp>,
        Jann Horn <jannh@...gle.com>, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH v7 0/6] seccomp trap to userspace

On Fri, Sep 28, 2018 at 11:57:40PM +0200, Michael Kerrisk (man-opages) wrote:
> Hi Tycho,
> 
> On 09/27/2018 05:11 PM, Tycho Andersen wrote:
> > Hi all,
> > 
> > Here's v7 of the seccomp trap to userspace set. There are various minor
> > changes and bug fixes, but two major changes:
> > 
> > * We now pass fds to the tracee via an ioctl, and do it immediately when
> >    the ioctl is called. For this we needed some help from the vfs, so
> >    I've put the one patch in this series and cc'd fsdevel. This does have
> >    the advantage that the feature is now totally decoupled from the rest
> >    of the set, which is itself useful (thanks Andy!)
> > 
> > * Instead of putting all of the notification related stuff into the
> >    struct seccomp_filter, it now lives in its own struct notification,
> >    which is pointed to by struct seccomp_filter. This will save a lot of
> >    memory (thanks Tyler!)
> 
> Is there a documentation (man page) patch for this API change?

Not yet, but once we decide on a final API I'll prepare one.

Cheers,

Tycho