netdev - Re: [PATCH net-next v2 09/10] genetlink: switch control commands to per-op policies

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Date:   Fri, 02 Oct 2020 08:33:36 +0200
From:   Johannes Berg <johannes@...solutions.net>
To:     Jakub Kicinski <kuba@...nel.org>, davem@...emloft.net
Cc:     netdev@...r.kernel.org, andrew@...n.ch, jiri@...nulli.us,
        mkubecek@...e.cz, dsahern@...nel.org, pablo@...filter.org
Subject: Re: [PATCH net-next v2 09/10] genetlink: switch control commands to
 per-op policies

On Thu, 2020-10-01 at 15:59 -0700, Jakub Kicinski wrote:
> In preparation for adding a new attribute to CTRL_CMD_GETPOLICY
> split the policies for getpolicy and getfamily apart.
> 
> This will cause a slight user-visible change in that dumping
> the policies will switch from per family to per op, but
> supposedly sniffer-type applications (which are the main use
> case for policy dumping thus far) 

For the record, I don't think anything there has actually been
implemented ... I've been meaning to, but not gotten to it, the only
thing I had done was a "dummy" policy dump helper in iproute2/genl.

Which I guess will no longer work with this, and thus I should in fact
implement the scheme I outlined for dumping all commands at once, so the
"manual" introspection there can work again.

Still, it's all very new and not really in use yet, so I see no issues
with it all.

Reviewed-by: Johannes Berg <johannes@...solutions.net>

johannes