netdev - Re: [PATCH bpf-next 1/4] xdp: Support specifying expected existing program when attaching XDP

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Message-ID: <8c55c053-ab95-3657-e271-dd47c1daaf5e@solarflare.com>
Date:   Tue, 31 Mar 2020 23:05:50 +0100
From:   Edward Cree <ecree@...arflare.com>
To:     Alexei Starovoitov <alexei.starovoitov@...il.com>
CC:     David Ahern <dsahern@...il.com>, Lorenz Bauer <lmb@...udflare.com>,
        Andrii Nakryiko <andrii.nakryiko@...il.com>,
        Toke Høiland-Jørgensen <toke@...hat.com>,
        "John Fastabend" <john.fastabend@...il.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, "Yonghong Song" <yhs@...com>,
        Andrii Nakryiko <andriin@...com>,
        "David S. Miller" <davem@...emloft.net>,
        Jesper Dangaard Brouer <brouer@...hat.com>,
        "Andrey Ignatov" <rdna@...com>,
        Networking <netdev@...r.kernel.org>, bpf <bpf@...r.kernel.org>
Subject: Re: [PATCH bpf-next 1/4] xdp: Support specifying expected existing
 program when attaching XDP

On 31/03/2020 04:43, Alexei Starovoitov wrote:
> On Mon, Mar 30, 2020 at 04:25:07PM +0100, Edward Cree wrote:
>> Everything that a human operator can do, so can any program with the
>>  same capabilities/wheel bits.  Especially as the API that the
>>  operator-tool uses *will* be open and documented.  The Unix Way does
>>  not allow unscriptable interfaces, and heavily frowns at any kind of
>>  distinction between 'humans' and 'programs'.
> can you share a link on such philosophy?
It's not quite as explicit about it as I'd like, but
 http://www.catb.org/esr/writings/taoup/html/ch01s06.html#id2877684
 is the closest I can find right now.

-ed