From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753926AbbKWPs3 (ORCPT ); Mon, 23 Nov 2015 10:48:29 -0500 Received: from mail-yk0-f179.google.com ([209.85.160.179]:33338 "EHLO mail-yk0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752601AbbKWPs1 (ORCPT ); Mon, 23 Nov 2015 10:48:27 -0500 Date: Mon, 23 Nov 2015 10:48:09 -0500 From: Tejun Heo To: Daniel Wagner Cc: davem@davemloft.net, pablo@netfilter.org, kaber@trash.net, kadlec@blackhole.kfki.hu, daniel@iogearbox.net, nhorman@tuxdriver.com, lizefan@huawei.com, hannes@cmpxchg.org, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, coreteam@netfilter.org, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-team@fb.com, ninasc@fb.com Subject: Re: [PATCH 7/9] sock, cgroup: add sock->sk_cgroup Message-ID: <20151123154809.GD3049@mtj.duckdns.org> References: <1448122441-9335-1-git-send-email-tj@kernel.org> <1448122441-9335-8-git-send-email-tj@kernel.org> <56530E4B.4090209@bmw-carit.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <56530E4B.4090209@bmw-carit.de> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, On Mon, Nov 23, 2015 at 02:02:03PM +0100, Daniel Wagner wrote: > On 11/21/2015 05:13 PM, Tejun Heo wrote: > > Signed-off-by: Tejun Heo > > Cc: Daniel Borkmann > > Cc: Daniel Wagner > > I did a quick test and for new connection the cgroup2 match worked as > expected. For an existing connection I wasn't able to trigger the match. > > It is quite likely I do something wrong: > > ssh into the box > # mkdir /sys/fs/cgroup/test > # echo $$ > /sys/fs/cgroup/test/cgroup.procs > # echo $PPID > /sys/fs/cgroup/test/cgroup.procs > # iptables -A OUTPUT -m cgroup --path test > > Should I see matches with the existing ssh session? Socket is associated with the creating cgroup and stays associated with that cgroup until it's released. Migrating the process doesn't change the ownership of the sockets it has created. This is in line with how other stateful resources such as memory are handled in cgroup2 hierarchy. Thanks. -- tejun