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From: Kumar Kartikeya Dwivedi <memxor@gmail.com>
To: Maxim Mikityanskiy <maximmi@nvidia.com>
Cc: Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Andrii Nakryiko <andrii@kernel.org>,
	Martin KaFai Lau <kafai@fb.com>, Song Liu <songliubraving@fb.com>,
	Yonghong Song <yhs@fb.com>,
	John Fastabend <john.fastabend@gmail.com>,
	KP Singh <kpsingh@kernel.org>, Eric Dumazet <edumazet@google.com>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
	David Ahern <dsahern@kernel.org>,
	Jesper Dangaard Brouer <hawk@kernel.org>,
	Nathan Chancellor <nathan@kernel.org>,
	Nick Desaulniers <ndesaulniers@google.com>,
	Brendan Jackman <jackmanb@google.com>,
	Florent Revest <revest@chromium.org>,
	Joe Stringer <joe@cilium.io>, Lorenz Bauer <lmb@cloudflare.com>,
	Tariq Toukan <tariqt@nvidia.com>,
	netdev@vger.kernel.org, bpf@vger.kernel.org,
	clang-built-linux@googlegroups.com
Subject: Re: [PATCH bpf-next 07/10] bpf: Add helpers to query conntrack info
Date: Wed, 20 Oct 2021 09:26:22 +0530	[thread overview]
Message-ID: <20211020035622.lgrxnrwfeak2e75a@apollo.localdomain> (raw)
In-Reply-To: <20211019144655.3483197-8-maximmi@nvidia.com>

On Tue, Oct 19, 2021 at 08:16:52PM IST, Maxim Mikityanskiy wrote:
> The new helpers (bpf_ct_lookup_tcp and bpf_ct_lookup_udp) allow to query
> connection tracking information of TCP and UDP connections based on
> source and destination IP address and port. The helper returns a pointer
> to struct nf_conn (if the conntrack entry was found), which needs to be
> released with bpf_ct_release.
>
> Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
> Reviewed-by: Tariq Toukan <tariqt@nvidia.com>

The last discussion on this [0] suggested that stable BPF helpers for conntrack
were not desired, hence the recent series [1] to extend kfunc support to modules
and base the conntrack work on top of it, which I'm working on now (supporting
both CT lookup and insert).

[0]: https://lore.kernel.org/bpf/CAADnVQJTJzxzig=1vvAUMXELUoOwm2vXq0ahP4mfhBWGsCm9QA@mail.gmail.com
[1]: https://lore.kernel.org/bpf/CAADnVQKDPG+U-NwoAeNSU5Ef9ZYhhGcgL4wBkFoP-E9h8-XZhw@mail.gmail.com

--
Kartikeya

  reply	other threads:[~2021-10-20  3:56 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-19 14:46 [PATCH bpf-next 00/10] New BPF helpers to accelerate synproxy Maxim Mikityanskiy
2021-10-19 14:46 ` [PATCH bpf-next 01/10] bpf: Use ipv6_only_sock in bpf_tcp_gen_syncookie Maxim Mikityanskiy
2021-10-19 14:46 ` [PATCH bpf-next 02/10] bpf: Support dual-stack sockets in bpf_tcp_check_syncookie Maxim Mikityanskiy
2021-10-19 14:46 ` [PATCH bpf-next 03/10] bpf: Use EOPNOTSUPP " Maxim Mikityanskiy
2021-10-19 14:46 ` [PATCH bpf-next 04/10] bpf: Make errors of bpf_tcp_check_syncookie distinguishable Maxim Mikityanskiy
2021-10-20  3:28   ` John Fastabend
2021-10-20 13:16     ` Maxim Mikityanskiy
2021-10-20 15:26       ` Lorenz Bauer
2021-10-19 14:46 ` [PATCH bpf-next 05/10] bpf: Fix documentation of th_len in bpf_tcp_{gen,check}_syncookie Maxim Mikityanskiy
2021-10-19 14:46 ` [PATCH bpf-next 06/10] bpf: Expose struct nf_conn to BPF Maxim Mikityanskiy
2021-10-19 14:46 ` [PATCH bpf-next 07/10] bpf: Add helpers to query conntrack info Maxim Mikityanskiy
2021-10-20  3:56   ` Kumar Kartikeya Dwivedi [this message]
2021-10-20  9:28     ` Florian Westphal
2021-10-20  9:48       ` Toke Høiland-Jørgensen
2021-10-20  9:58         ` Florian Westphal
2021-10-20 12:21           ` Toke Høiland-Jørgensen
2021-10-20 12:44             ` Florian Westphal
2021-10-20 20:54               ` Toke Høiland-Jørgensen
2021-10-20 22:55                 ` David Ahern
2021-10-21  7:36                 ` Florian Westphal
2021-10-20 13:18     ` Maxim Mikityanskiy
2021-10-20 19:17       ` Kumar Kartikeya Dwivedi
2021-10-20  9:46   ` Toke Høiland-Jørgensen
2021-10-19 14:46 ` [PATCH bpf-next 08/10] bpf: Add helpers to issue and check SYN cookies in XDP Maxim Mikityanskiy
2021-10-19 14:46 ` [PATCH bpf-next 09/10] bpf: Add a helper to issue timestamp " Maxim Mikityanskiy
2021-10-19 16:45   ` Eric Dumazet
2021-10-20 13:16     ` Maxim Mikityanskiy
2021-10-20 15:56   ` Lorenz Bauer
2021-10-20 16:16     ` Toke Høiland-Jørgensen
2021-10-22 16:56       ` Maxim Mikityanskiy
2021-10-27  8:34         ` Lorenz Bauer
2021-11-01 11:14       ` Maxim Mikityanskiy
2021-11-03  2:10         ` Yonghong Song
2021-11-03 14:02           ` Maxim Mikityanskiy
2021-11-09  7:11             ` Yonghong Song
2021-11-25 14:34               ` Maxim Mikityanskiy
2021-11-26  5:43                 ` Yonghong Song
2021-11-26 16:50                   ` Maxim Mikityanskiy
2021-11-26 17:07                     ` Yonghong Song
2021-11-29 17:51                       ` Maxim Mikityanskiy
2021-12-01  6:39                         ` Yonghong Song
2021-12-01 18:06                           ` Andrii Nakryiko
2021-10-19 14:46 ` [PATCH bpf-next 10/10] bpf: Add sample for raw syncookie helpers Maxim Mikityanskiy
2021-10-20 18:01   ` Joe Stringer
2021-10-21 17:19     ` Maxim Mikityanskiy
2021-10-21  1:06   ` Alexei Starovoitov
2021-10-21 17:31     ` Maxim Mikityanskiy
2021-10-21 18:50       ` Alexei Starovoitov

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