netdev - Re: [PATCH bpf-next v4 1/2] tools: libbpf: add netfilter link attach helper

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Message-ID: <87jzvnh7tv.fsf@toke.dk>
Date:   Wed, 28 Jun 2023 18:26:04 +0200
From:   Toke Høiland-Jørgensen <toke@...hat.com>
To:     Florian Westphal <fw@...len.de>, bpf@...r.kernel.org
Cc:     ast@...nel.org, daniel@...earbox.net, andrii@...nel.org,
        martin.lau@...ux.dev, netdev@...r.kernel.org,
        Florian Westphal <fw@...len.de>,
        Andrii Nakryiko <andrii.nakryiko@...il.com>
Subject: Re: [PATCH bpf-next v4 1/2] tools: libbpf: add netfilter link
 attach helper

Florian Westphal <fw@...len.de> writes:

> Add new api function: bpf_program__attach_netfilter.
>
> It takes a bpf program (netfilter type), and a pointer to a option struct
> that contains the desired attachment (protocol family, priority, hook
> location, ...).
>
> It returns a pointer to a 'bpf_link' structure or NULL on error.
>
> Next patch adds new netfilter_basic test that uses this function to
> attach a program to a few pf/hook/priority combinations.
>
> v2: change name and use bpf_link_create.
>
> Suggested-by: Andrii Nakryiko <andrii.nakryiko@...il.com>
> Link: https://lore.kernel.org/bpf/CAEf4BzZrmUv27AJp0dDxBDMY_B8e55-wLs8DUKK69vCWsCG_pQ@mail.gmail.com/
> Link: https://lore.kernel.org/bpf/CAEf4BzZ69YgrQW7DHCJUT_X+GqMq_ZQQPBwopaJJVGFD5=d5Vg@mail.gmail.com/
> Signed-off-by: Florian Westphal <fw@...len.de>


Reviewed-by: Toke Høiland-Jørgensen <toke@...hat.com>