netdev - Re: [PATCH net] xfrm: Fix eth_hdr(skb)->h_proto to reflect inner IP version

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Date:   Wed, 24 Jan 2018 07:11:41 +0100
From:   Steffen Klassert <steffen.klassert@...unet.com>
To:     <yossiku@...lanox.com>
CC:     Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Alexey Kuznetsov <kuznet@....inr.ac.ru>,
        "Hideaki YOSHIFUJI" <yoshfuji@...ux-ipv6.org>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net] xfrm: Fix eth_hdr(skb)->h_proto to reflect inner IP
 version

On Tue, Jan 23, 2018 at 12:16:21AM +0200, yossiku@...lanox.com wrote:
> From: Yossi Kuperman <yossiku@...lanox.com>
> 
> IPSec tunnel mode supports encapsulation of IPv4 over IPv6 and vice-versa.
> 
> The outer IP header is stripped and the inner IP inherits the original
> Ethernet header. Tcpdump fails to properly decode the inner packet in
> case that h_proto is different than the inner IP version.
> 
> Fix h_proto to reflect the inner IP version.
> 
> Signed-off-by: Yossi Kuperman <yossiku@...lanox.com>

Applied, thanks Yossi!