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Message-ID: <87sja4kxjq.fsf@xmission.com> Date: Wed, 26 Sep 2012 19:30:01 -0700 From: ebiederm@...ssion.com (Eric W. Biederman) To: minyard@....org Cc: Corey Minyard <cminyard@...sta.com>, Eric Dumazet <eric.dumazet@...il.com>, "Serge E. Hallyn" <serge@...lyn.com>, linux-kernel@...r.kernel.org Subject: Re: [PATCH] namespace: Add an identifier to the namespace file Corey Minyard <tcminyard@...il.com> writes: > On 09/26/2012 07:48 PM, Eric W. Biederman wrote: >> For netfilter or any other interface what should happen is that a file >> descriptor is passed in and the network namespace is derived from the >> file descriptor. >> >> Given that netfilter is per network namespace I'm not certain how >> filtering per network namespace would make sense. >> >> When I have poked my nose into netfilter I have had the hard problem >> that I have not figured out how to translate the parameters supplied >> by userspace into a more appropriate in kernel form, so I'm not certain >> how to implement passing a file descriptor into netfilter efficiently. > > Yeah, that's kind of where I am stuck, too. netfilter used to be global, > so if it's not, this may be a "You can't do that any more". I expect this will come down closer to you can't do it that way anymore. Eric -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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