netdev - Re: [PATCH 0/4] Prevent UDP tunnels from operating on garbage socket

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Message-ID: <CALx6S348YyYxrT+3fcXEFz=w6BYFGZwcQ6iD1PjzVePotioJKw@mail.gmail.com>
Date:	Mon, 6 Apr 2015 06:59:21 -0700
From:	Tom Herbert <tom@...bertland.com>
To:	David Miller <davem@...emloft.net>
Cc:	netdev@...r.kernel.org, netfilter-devel@...r.kernel.org,
	pablo@...filter.org, hannes@...essinduktion.org, jiri@...nulli.us
Subject: Re: [PATCH 0/4] Prevent UDP tunnels from operating on garbage socket

On Sun, Apr 5, 2015 at 7:18 PM, David Miller <davem@...emloft.net> wrote:
>
> So this should do the rest of the work such that when we encapsulate
> into a UDP tunnel, the output path works on the UDP tunnel's socket
> rather than skb->sk.
>
Doesn't this contradict "udp: Do not require sock in
udp_tunnel_xmit_skb" patch?  How is the skbuf getting set with a
garbage socket?

Thanks,
Tom

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> Part of this work is based upon changes done by Jiri Pirko some time
> ago.
>
> Basically the first step is to pass the socket through the nf_hook
> okfn(), and then next we do the same for the UDP tunnel xmit routines.
>
> Signed-off-by: David S. Miller <davem@...emloft.net>
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