From mboxrd@z Thu Jan  1 00:00:00 1970
From: Pablo Neira Ayuso <pablo@netfilter.org>
Subject: Re: [PATCH net-next 1/2] net: netfilter: export xt_policy
 match_policy_in() as xt_policy_match_policy_in()
Date: Fri, 12 Jan 2018 14:41:56 +0100
Message-ID: <20180112134156.6nd4c7uvkswgrpxc@salvia>
References: <1515761845-31323-1-git-send-email-eyal.birger@gmail.com>
 <1515761845-31323-2-git-send-email-eyal.birger@gmail.com>
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Cc: netdev@vger.kernel.org, jhs@mojatatu.com, coreteam@netfilter.org,
        shmulik@metanetworks.com, Eyal Birger <eyal@metanetworks.com>
To: Eyal Birger <eyal.birger@gmail.com>
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On Fri, Jan 12, 2018 at 02:57:24PM +0200, Eyal Birger wrote:
> @@ -51,9 +52,9 @@ match_xfrm_state(const struct xfrm_state *x, const struct xt_policy_elem *e,
>  	       MATCH(reqid, x->props.reqid);
>  }
>  
> -static int
> -match_policy_in(const struct sk_buff *skb, const struct xt_policy_info *info,
> -		unsigned short family)
> +int xt_policy_match_policy_in(const struct sk_buff *skb,
> +			      const struct xt_policy_info *info,
> +			      unsigned short family)
>  {
>  	const struct xt_policy_elem *e;
>  	const struct sec_path *sp = skb->sp;
> @@ -80,10 +81,11 @@ match_policy_in(const struct sk_buff *skb, const struct xt_policy_info *info,
>  
>  	return strict ? 1 : 0;
>  }
> +EXPORT_SYMBOL_GPL(xt_policy_match_policy_in);

If you just want to call xt_policy_match from tc, then you could use
tc ipt infrastructure instead.