netdev - Re: [PATCH net-next,v3] net: sched: add em_ipt ematch for calling xtables matches

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Message-Id: <20180221.131635.682087826054662910.davem@davemloft.net>
Date:   Wed, 21 Feb 2018 13:16:35 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     eyal.birger@...il.com
Cc:     jhs@...atatu.com, xiyou.wangcong@...il.com, pablo@...filter.org,
        netdev@...r.kernel.org, shmulik@...anetworks.com
Subject: Re: [PATCH net-next,v3] net: sched: add em_ipt ematch for calling
 xtables matches

From: Eyal Birger <eyal.birger@...il.com>
Date: Thu, 15 Feb 2018 19:42:43 +0200

> The commit a new tc ematch for using netfilter xtable matches.
> 
> This allows early classification as well as mirroning/redirecting traffic
> based on logic implemented in netfilter extensions.
> 
> Current supported use case is classification based on the incoming IPSec
> state used during decpsulation using the 'policy' iptables extension
> (xt_policy).
> 
> The module dynamically fetches the netfilter match module and calls
> it using a fake xt_action_param structure based on validated userspace
> provided parameters.
> 
> As the xt_policy match does not access skb->data, no skb modifications
> are needed on match.
> 
> Signed-off-by: Eyal Birger <eyal.birger@...il.com>

Applied, thank you.