router_id or source neighbor in import/export filter for dynamic BGP peers

[Maria Matejka]

On Fri, Sep 27, 2024 at 06:05:47PM +0200, Alexander Zubkov via Bird-users wrote:

> It seems to me that Mikhail wants to know the protocol information, in
> context of which the filter is executed. And he also wants it in the export
> filter, to know protocol/peer/etc.

Yeah, it looks like this, and sadly, we don't have such information
easily available for now.

Implementing this is in our backlog and we are basically overwhelmed
with other overdue tasks (like finalizing the multithreading, EVPN or
TCP-AO). It is expectable to get this somewhere around BIRD 3.2 or 3.3
(take me with a grain of salt please).

It is quite easy to expose _something_ by some hacks but it would mean
polluting the filters and configuration by yet another inconsistent
feature which we then would have to maintain for much longer than
acceptable.

Maria

-- 
Maria Matejka (she/her) | BIRD Team Leader | CZ.NIC, z.s.p.o.
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