netdev - Re: [PATCH net-next] netlink: include netnsid only when netns differs.

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Date:   Wed, 31 May 2017 10:38:21 +0200
From:   Nicolas Dichtel <nicolas.dichtel@...nd.com>
To:     Flavio Leitner <fbl@...close.org>, netdev@...r.kernel.org
Subject: Re: [PATCH net-next] netlink: include netnsid only when netns
 differs.

Le 30/05/2017 à 23:33, Flavio Leitner a écrit :
> Don't include netns id for notifications broadcasts when the
> socket and the skb are in the same netns because it will be
> an error which can't be distinguished from a peer netns failing
> to allocate an id.
I don't understand the problem. peernet2id() doesn't allocate ids, it only do a
lookup. If you need an id for the current netns, you have to allocate one.

This patch changes the metadata exported to the userland and will break existing
tools.