Re: [nf-next RFC] netfilter: nf_tables: Feature ifname-based hook registration

[Pablo Neira Ayuso <pablo@netfilter.org>]

On Fri, Jul 11, 2025 at 02:19:04PM +0200, Phil Sutter wrote:
> Pablo,
> 
> On Thu, Jul 10, 2025 at 12:43:03AM +0200, Pablo Neira Ayuso wrote:
> [...]
> > If you accept this suggestion, it is a matter of:
> > 
> > #1 revert the patch in nf.git for the incomplete event notification
> >    (you have three more patches pending for nf-next to complete this
> >     for control plane notifications).
> > #2 add event notifications to net/netfilter/core.c and nfnetlink_hook.
> 
> Since Florian wondered whether I am wasting my time with a quick attempt
> at #2, could you please confirm/deny whether this is a requirement for
> the default to name-based interface hooks or does the 'list hooks'
> extension satisfy the need for user space traceability?

For me, listing is just fine for debugging.

If there is a need to track hook updates via events, then
nfnetlink_hook can be extended later.

So I am not asking for this, I thought you needed both listing and
events, that is why I suggest to add events to nfnetlink_hook.