netdev - Re: [PATCH net-next 2/2] docs: netlink: basic introduction to Netlink

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Message-ID: <20220818201345.7b523818@kernel.org>
Date:   Thu, 18 Aug 2022 20:13:45 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Stanislav Fomichev <sdf@...gle.com>
Cc:     davem@...emloft.net, netdev@...r.kernel.org, corbet@....net,
        johannes@...solutions.net, stephen@...workplumber.org,
        ecree.xilinx@...il.com, benjamin.poirier@...il.com,
        idosch@...sch.org, f.fainelli@...il.com, jiri@...nulli.us,
        dsahern@...nel.org, fw@...len.de, linux-doc@...r.kernel.org,
        jhs@...atatu.com, tgraf@...g.ch, jacob.e.keller@...el.com,
        svinota.saveliev@...il.com
Subject: Re: [PATCH net-next 2/2] docs: netlink: basic introduction to
 Netlink

On Wed, 17 Aug 2022 21:05:21 -0700 Stanislav Fomichev wrote:
> > +Most of the concepts and examples here refer to the ``NETLINK_ROUTE`` family,
> > +which covers much of the configuration of the Linux networking stack.
> > +Real documentation of that family, deserves a chapter (or a book) of its own.
> 
> I'm assuming the answer is "no", but nonetheless: is it possible to
> use classic families over generic netlink (discover/get policy/etc)?

Not as far as I know.

> So we can just assume everything is genetlink and safely ignore all
> old quirks of the classic variant?

The behavior may differ a little with older families when it comes to
validation but yes, for the most part genetlink users should be able 
to ignore all the quirks.