bgp_large_community wildcard in conditional

[Ondrej Zajicek]

On Thu, Oct 29, 2020 at 10:00:58AM -0400, Brooks Swinnerton wrote:
> Hello,
> 
> I was wondering if it's possible to create a conditional that matches on a
> wildcard for a part of a BGP large community. For example:
> 
> if ([*, 600, 6939]) ~ bgp_large_community then
>   reject;

Hello

Note that it would be [(*, 600, 6939)], not ([*, 600, 6939]).

But for large communities, BIRD allows wildcard only on the more specific part.
You can have [(64496, 600, *)], [(64496, *, *)] or even [(*, *, *)], but not
[(*, 600, 6939)].

Also, wildcard (*, 600, 6939) does not really make sense, as meaning of
the second and third part is determined by the first (global admin), and
may be different for different first parts.

-- 
Elen sila lumenn' omentielvo

Ondrej 'Santiago' Zajicek (email: santiago at crfreenet.org)
OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net)
"To err is human -- to blame it on a computer is even more so."