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Date:   Thu, 26 Aug 2021 12:51:00 +0200
From:   Pablo Neira Ayuso <pablo@netfilter.org>
To:     Tom Yan <tom.ty89@gmail.com>
Cc:     netfilter-devel@vger.kernel.org
Subject: Re: [Bug] Reverse translation skips "leading" meta protocol match
Message-ID: <20210826105100.GA4859@salvia>
References: <CAGnHSEmo1D2bCemVuCT-D2jdM8AmUgGKxZrq0RpXUMaLyQqjwA@mail.gmail.com>
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On Thu, Aug 26, 2021 at 12:10:05PM +0800, Tom Yan wrote:
[...]
> bridge meh hmm 3 2
>   [ meta load protocol => reg 1 ]
>   [ cmp eq reg 1 0x00000008 ]
>   [ meta load l4proto => reg 1 ]
>   [ cmp eq reg 1 0x00000011 ]
>   [ payload load 2b @ transport header + 2 => reg 1 ]
>   [ cmp eq reg 1 0x00004300 ]
>   [ immediate reg 0 accept ]

https://patchwork.ozlabs.org/project/netfilter-devel/patch/20210826104952.4812-1-pablo@netfilter.org/