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From: Alexei Starovoitov <alexei.starovoitov@gmail.com>
To: Di Zhu <zhudi2@huawei.com>
Cc: "David S. Miller" <davem@davemloft.net>,
	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>,
	Jakub Sitnicki <jakub@cloudflare.com>, bpf <bpf@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] bpf: support BPF_PROG_QUERY for progs attached to sockmap
Date: Fri, 22 Oct 2021 08:25:16 -0700	[thread overview]
Message-ID: <CAADnVQJV7mFLE7_vPH8wcZqDsLhuZGqLk9sbrxWOeELL4X=NVg@mail.gmail.com> (raw)
In-Reply-To: <20211022103348.284562-1-zhudi2@huawei.com>

On Fri, Oct 22, 2021 at 3:34 AM Di Zhu <zhudi2@huawei.com> wrote:
>
> Right now there is no way to query whether BPF programs are
> attached to a sockmap or not.
>
> we can use the standard interface in libbpf to query, such as:
> bpf_prog_query(mapFd, BPF_SK_SKB_STREAM_PARSER, 0, NULL, ...);
> the mapFd is the fd of sockmap.
>
> Signed-off-by: Di Zhu <zhudi2@huawei.com>

The feature looks fine, but it needs a selftest.

  reply	other threads:[~2021-10-22 15:25 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-22 10:33 [PATCH] bpf: support BPF_PROG_QUERY for progs attached to sockmap Di Zhu
2021-10-22 15:25 ` Alexei Starovoitov [this message]
2021-10-22 15:46 ` John Fastabend
  -- strict thread matches above, loose matches on Subject: below --
2021-10-23  6:05 zhudi (E)
2021-10-23  6:01 zhudi (E)
2021-10-19 12:58 Di Zhu
2021-10-22  0:36 ` Alexei Starovoitov

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