[RADV] prefix deprecation

[Ondrej Zajicek]

On Thu, Nov 20, 2025 at 01:18:06PM +0100, Michael Saxl via Bird-users wrote:
> Hello,
> 
> I'm doing some experiments using radv and bird3.
> as expected it bird3 automatically sends prefix informations if not somehow disabled.
> ...
> I've not tried all combinations, but the simplest fix for me is
> setting .onlink and .autonomous =1 in dead_prefix. I'm not sure if this
> does not break prefixes that are explicitly defined, so I did not
> modifiy dead_prefix but instead changed
>
> What do you think about this changes?

Hello

Your change worked for a case when a prefix was removed from the
interface, but not for a case when a prefix was de-configured in
the BIRD config.

I fixed is by keeping active value of flags in the prefix structure
itself:

https://gitlab.nic.cz/labs/bird/-/commit/324f4532ef90a66b4d1221ddccf790573ccfc623

-- 
Elen sila lumenn' omentielvo

Ondrej 'Santiago' Zajicek (email: santiago at crfreenet.org)
"To err is human -- to blame it on a computer is even more so."