From: Florian Westphal <fw@strlen.de>
To: Quentin Deslandes <qde@naccy.de>
Cc: Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>,
Martin KaFai Lau <martin.lau@linux.dev>,
Song Liu <song@kernel.org>, Yonghong Song <yhs@fb.com>,
John Fastabend <john.fastabend@gmail.com>,
KP Singh <kpsingh@kernel.org>,
Stanislav Fomichev <sdf@google.com>, Hao Luo <haoluo@google.com>,
Jiri Olsa <jolsa@kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Mykola Lysenko <mykolal@fb.com>, Shuah Khan <shuah@kernel.org>,
Dmitrii Banshchikov <me@ubique.spb.ru>,
linux-kernel@vger.kernel.org, bpf@vger.kernel.org,
linux-kselftest@vger.kernel.org, netdev@vger.kernel.org,
Kernel Team <kernel-team@meta.com>
Subject: Re: [PATCH bpf-next v3 00/16] bpfilter
Date: Tue, 3 Jan 2023 12:45:40 +0100 [thread overview]
Message-ID: <20230103114540.GB13151@breakpoint.cc> (raw)
In-Reply-To: <20221224000402.476079-1-qde@naccy.de>
Quentin Deslandes <qde@naccy.de> wrote:
> The patchset is based on the patches from David S. Miller [1],
> Daniel Borkmann [2], and Dmitrii Banshchikov [3].
>
> Note: I've partially sent this patchset earlier due to a
> mistake on my side, sorry for then noise.
>
> The main goal of the patchset is to prepare bpfilter for
> iptables' configuration blob parsing and code generation.
>
> The patchset introduces data structures and code for matches,
> targets, rules and tables. Beside that the code generation
> is introduced.
>
> The first version of the code generation supports only "inline"
> mode - all chains and their rules emit instructions in linear
> approach.
>
> Things that are not implemented yet:
> 1) The process of switching from the previous BPF programs to the
> new set isn't atomic.
You can't make this atomic from userspace perspective, the
get/setsockopt API of iptables uses a read-modify-write model.
Tentatively I'd try to extend libnftnl and generate bpf code there,
since its used by both iptables(-nft) and nftables we'd automatically
get support for both.
I was planning to look into "attach bpf progs to raw netfilter hooks"
in Q1 2023, once the initial nf-bpf-codegen is merged.
next prev parent reply other threads:[~2023-01-03 11:46 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-24 0:03 [PATCH bpf-next v3 00/16] bpfilter Quentin Deslandes
2022-12-24 0:03 ` [PATCH bpf-next v3 01/16] bpfilter: add types for usermode helper Quentin Deslandes
2022-12-24 0:03 ` [PATCH bpf-next v3 02/16] tools: add bpfilter usermode helper header Quentin Deslandes
2022-12-24 0:03 ` [PATCH bpf-next v3 03/16] bpfilter: add logging facility Quentin Deslandes
2022-12-24 0:03 ` [PATCH bpf-next v3 04/16] bpfilter: add map container Quentin Deslandes
2022-12-24 0:03 ` [PATCH bpf-next v3 05/16] bpfilter: add runtime context Quentin Deslandes
2022-12-24 0:03 ` [PATCH bpf-next v3 06/16] bpfilter: add BPF bytecode generation infrastructure Quentin Deslandes
2022-12-24 0:03 ` [PATCH bpf-next v3 07/16] bpfilter: add support for TC bytecode generation Quentin Deslandes
2022-12-24 0:03 ` [PATCH bpf-next v3 08/16] bpfilter: add match structure Quentin Deslandes
2022-12-24 0:03 ` [PATCH bpf-next v3 09/16] bpfilter: add support for src/dst addr and ports Quentin Deslandes
2022-12-24 0:03 ` [PATCH bpf-next v3 10/16] bpfilter: add target structure Quentin Deslandes
2022-12-24 0:03 ` [PATCH bpf-next v3 11/16] bpfilter: add rule structure Quentin Deslandes
2022-12-24 0:03 ` [PATCH bpf-next v3 12/16] bpfilter: add table structure Quentin Deslandes
2022-12-24 0:03 ` [PATCH bpf-next v3 13/16] bpfilter: add table code generation Quentin Deslandes
2022-12-24 0:04 ` [PATCH bpf-next v3 14/16] bpfilter: add setsockopt() support Quentin Deslandes
2022-12-24 0:04 ` [PATCH bpf-next v3 15/16] bpfilter: add filter table Quentin Deslandes
2022-12-24 0:04 ` [PATCH bpf-next v3 16/16] bpfilter: handle setsockopt() calls Quentin Deslandes
2022-12-27 18:22 ` [PATCH bpf-next v3 00/16] bpfilter Alexei Starovoitov
2023-01-03 11:38 ` Florian Westphal
2023-01-06 14:15 ` Quentin Deslandes
2023-01-12 3:03 ` Florian Westphal
2023-01-03 11:45 ` Florian Westphal [this message]
2023-01-06 14:43 ` Quentin Deslandes
2023-01-12 3:17 ` Florian Westphal
2023-01-25 10:25 ` Quentin Deslandes
-- strict thread matches above, loose matches on Subject: below --
2022-12-23 23:40 Quentin Deslandes
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