netdev - Re: [PATCH v14 nf-next 2/3] netfilter: bridge: Add conntrack double vlan and pppoe

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Message-ID: <aLyjgj5CP5KIvUdl@strlen.de>
Date: Sat, 6 Sep 2025 23:11:30 +0200
From: Florian Westphal <fw@...len.de>
To: Eric Woudstra <ericwouds@...il.com>
Cc: Pablo Neira Ayuso <pablo@...filter.org>,
	Jozsef Kadlecsik <kadlec@...filter.org>,
	Nikolay Aleksandrov <razor@...ckwall.org>,
	Ido Schimmel <idosch@...dia.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>, netfilter-devel@...r.kernel.org,
	bridge@...ts.linux.dev, netdev@...r.kernel.org
Subject: Re: [PATCH v14 nf-next 2/3] netfilter: bridge: Add conntrack double
 vlan and pppoe

Eric Woudstra <ericwouds@...il.com> wrote:
>  	enum ip_conntrack_info ctinfo;
> +	u32 len, data_len = U32_MAX;
> +	int ret, offset = 0;
>  	struct nf_conn *ct;
> -	u32 len;
> -	int ret;
> +	__be16 outer_proto;
>  
>  	ct = nf_ct_get(skb, &ctinfo);
>  	if ((ct && !nf_ct_is_template(ct)) ||
>  	    ctinfo == IP_CT_UNTRACKED)
>  		return NF_ACCEPT;
>  
> +	if (ct && nf_ct_zone_id(nf_ct_zone(ct), CTINFO2DIR(ctinfo)) !=
> +			NF_CT_DEFAULT_ZONE_ID) {
> +		switch (skb->protocol) {
> +		case htons(ETH_P_PPP_SES): {
> +			struct ppp_hdr {
> +				struct pppoe_hdr hdr;
> +				__be16 proto;
> +			} *ph;
> +

This function is getting too long, please move this to a helper
function.