linux-kernel - Re: [PATCH] netfilter: xt_NFLOG: allow 128 character log prefixes

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Message-ID: <CAKxSbF1bMzTc8sTQLFZpeY5XsymL+njKaTJOCb93RT6aj2NPVw@mail.gmail.com>
Date:   Tue, 27 Jul 2021 16:22:10 -0500
From:   Alex Forster <aforster@...udflare.com>
To:     Pablo Neira Ayuso <pablo@...filter.org>
Cc:     Kyle Bowman <kbowman@...udflare.com>,
        kernel-team <kernel-team@...udflare.com>,
        Jozsef Kadlecsik <kadlec@...filter.org>,
        Florian Westphal <fw@...len.de>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        netfilter-devel@...r.kernel.org, coreteam@...filter.org,
        linux-kernel@...r.kernel.org,
        Network Development <netdev@...r.kernel.org>
Subject: Re: [PATCH] netfilter: xt_NFLOG: allow 128 character log prefixes

> It should be possible to update iptables-nft to use nft_log from
> userspace (instead of xt_LOG) which removes this limitation, there is
> no need for a kernel upgrade.

We have been able to migrate some parts of this workload to the
nftables subsystem by treating network namespaces sort of like VRFs.
Unfortunately, we have not been able to use nftables to handle all
traffic, since it does not have an equivalent for xt_bpf.

Alex Forster