Re: [PATCH v4 0/4] seccomp trap to userspace

From: Christian Brauner <christian@brauner.io>
To: Tycho Andersen <tycho@tycho.ws>
Cc: Kees Cook <keescook@chromium.org>,
	"Tobin C . Harding" <me@tobin.cc>,
	linux-api@vger.kernel.org, containers@lists.linux-foundation.org,
	Akihiro Suda <suda.akihiro@lab.ntt.co.jp>,
	Oleg Nesterov <oleg@redhat.com>,
	linux-kernel@vger.kernel.org,
	"Eric W . Biederman" <ebiederm@xmission.com>,
	Andy Lutomirski <luto@amacapital.net>
Subject: Re: [PATCH v4 0/4] seccomp trap to userspace
Date: Tue, 7 Aug 2018 05:30:43 +0200	[thread overview]
Message-ID: <20180807033043.2esvm5qbhhqvatvy@mailbox.org> (raw)
In-Reply-To: <20180807024442.GA12274@cisco.lan>

On Mon, Aug 06, 2018 at 08:44:42PM -0600, Tycho Andersen wrote:
> Hi all,
> 
> Dinesh Subhraveti has claimed that some part of this series might be
> patented. While he has not furnished me with anything to confirm this
> claim, I'll put this series on hold.

Hey man,

Sorry to hear that your faced with such nonsense, Tycho. This is utter
bullsh*t of course. If you have more details at some point and feel
comfortable doing so it would probably be good to share them here.

Christian

> 
> Tycho
> 
> On Thu, Jun 21, 2018 at 04:04:12PM -0600, Tycho Andersen wrote:
> > Hi all,
> > 
> > Here's v4 of the seccomp trap to userspace series. v3 is here:
> > https://lkml.org/lkml/2018/5/31/527
> > 
> > I believe we've addressed the two burning questions I had about v3: 1.
> > it seems ok not to use netlink, since there's not a great way to re-use
> > the API without a lot of unnecessary code and 2. only having return
> > capability for fds seems fine with people. Or at least I haven't heard
> > any strong objections.
> > 
> > I've re-worked a bunch of things in this version based on feedback from
> > the last series. See patch notes for details. At this point I'm not
> > aware of anything that needs to be addressed, but of course that is
> > subject to change :)
> > 
> > Tycho
> > 
> > Tycho Andersen (4):
> >   seccomp: add a return code to trap to userspace
> >   seccomp: make get_nth_filter available outside of CHECKPOINT_RESTORE
> >   seccomp: add a way to get a listener fd from ptrace
> >   seccomp: add support for passing fds via USER_NOTIF
> > 
> >  .../userspace-api/seccomp_filter.rst          |  79 +++
> >  arch/Kconfig                                  |   7 +
> >  include/linux/seccomp.h                       |  18 +-
> >  include/uapi/linux/ptrace.h                   |   2 +
> >  include/uapi/linux/seccomp.h                  |  23 +-
> >  kernel/ptrace.c                               |   4 +
> >  kernel/seccomp.c                              | 491 ++++++++++++++-
> >  tools/testing/selftests/seccomp/seccomp_bpf.c | 560 +++++++++++++++++-
> >  8 files changed, 1172 insertions(+), 12 deletions(-)
> > 
> > -- 
> > 2.17.1
> > 
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