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Date:   Thu, 3 Dec 2020 17:39:22 -0800
From:   Martin KaFai Lau <kafai@fb.com>
To:     Florent Revest <revest@chromium.org>
CC:     <bpf@vger.kernel.org>, <viro@zeniv.linux.org.uk>,
        <davem@davemloft.net>, <kuba@kernel.org>, <ast@kernel.org>,
        <daniel@iogearbox.net>, <yhs@fb.com>, <andrii@kernel.org>,
        <kpsingh@chromium.org>, <revest@google.com>,
        <linux-kernel@vger.kernel.org>, <netdev@vger.kernel.org>
Subject: Re: [PATCH bpf-next v4 5/6] bpf: Add an iterator selftest for
 bpf_sk_storage_get
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On Wed, Dec 02, 2020 at 09:55:26PM +0100, Florent Revest wrote:
> The eBPF program iterates over all files and tasks. For all socket
> files, it stores the tgid of the last task it encountered with a handle
> to that socket. This is a heuristic for finding the "owner" of a socket
> similar to what's done by lsof, ss, netstat or fuser. Potentially, this
> information could be used from a cgroup_skb/*gress hook to try to
> associate network traffic with processes.
> 
> The test makes sure that a socket it created is tagged with prog_tests's
> pid.
Acked-by: Martin KaFai Lau <kafai@fb.com>