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Date:   Mon, 10 Aug 2020 07:56:08 -0700
From:   Eric Dumazet <>
To:     Jiang Yu <>,
        "David S. Miller" <>,
        Jakub Kicinski <>,
        Alexei Starovoitov <>,
        Daniel Borkmann <>,
        Martin KaFai Lau <>,
        Song Liu <>, Yonghong Song <>,
        Andrii Nakryiko <>,
        John Fastabend <>,
        KP Singh <>,
        Eric Dumazet <>,
        Jakub Sitnicki <>,
        zhanglin <>,
        Kees Cook <>,
        Andrey Ignatov <>,
        Quentin Monnet <>,,,
Subject: Re: [PATCH] bpf: Add bpf_skb_get_sock_comm() helper

On 8/10/20 6:09 AM, Jiang Yu wrote:
> skb distinguished by uid can only recorded to user who consume them.
> in many case, skb should been recorded more specific to process who
> consume them. E.g, the unexpected large data traffic of illegal process
> in metered network.
> this helper is used in tracing task comm of the sock to which a skb
> belongs.
> Signed-off-by: Jiang Yu <>

fd can be passed from one process to another.

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