netdev - Re: [PATCH 2/2] net: Implement SO

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20140313195349.GM18914@redhat.com>
Date:	Thu, 13 Mar 2014 15:53:49 -0400
From:	Vivek Goyal <vgoyal@...hat.com>
To:	Andy Lutomirski <luto@...capital.net>
Cc:	Simo Sorce <ssorce@...hat.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	cgroups@...r.kernel.org,
	Network Development <netdev@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>, Tejun Heo <tj@...nel.org>,
	jkaluza@...hat.com, lpoetter@...hat.com, kay@...hat.com
Subject: Re: [PATCH 2/2] net: Implement SO_PEERCGROUP

On Thu, Mar 13, 2014 at 10:55:16AM -0700, Andy Lutomirski wrote:

[..]
> >> 2. Docker is a container system, so use the "container" (aka
> >> namespace) APIs.  There are probably several clever things that could
> >> be done with /proc/<pid>/ns.
> >
> > pid is racy, if it weren't I would simply go straight
> > to /proc/<pid>/cgroups ...
> 
> How about:
> 
> open("/proc/self/ns/ipc", O_RDONLY);
> send the result over SCM_RIGHTS?

As I don't know I will ask. So what will server now do with this file
descriptor of client's ipc namespace.

IOW, what information/identifier does it contain which can be
used to map to pre-configrued per container/per namespace policies.

Thanks
Vivek
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html