netdev - Re: [PATCH net-next v5 1/3] Add a helper function to get socket cookie in eBPF

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Date:   Tue, 21 Mar 2017 00:05:41 +0100
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Chenbo Feng <chenbofeng.kernel@...il.com>, netdev@...r.kernel.org,
        Alexei Starovoitov <ast@...com>
CC:     Lorenzo Colitti <lorenzo@...gle.com>,
        Willem de Bruijn <willemb@...gle.com>,
        Chenbo Feng <fengc@...gle.com>
Subject: Re: [PATCH net-next v5 1/3] Add a helper function to get socket cookie
 in eBPF

On 03/20/2017 07:41 PM, Chenbo Feng wrote:
> From: Chenbo Feng <fengc@...gle.com>
>
> Retrieve the socket cookie generated by sock_gen_cookie() from a sk_buff
> with a known socket. Generates a new cookie if one was not yet set.If
> the socket pointer inside sk_buff is NULL, 0 is returned. The helper
> function coud be useful in monitoring per socket networking traffic
> statistics and provide a unique socket identifier per namespace.
>
> Signed-off-by: Chenbo Feng <fengc@...gle.com>

Acked-by: Daniel Borkmann <daniel@...earbox.net>