Exact Definition of numbers-match bitmask-match and fragmentation-type

[Matt Corallo]

Is such a patch something upstream would take? Don't know when I'll have a chance to work on such a thing, likely some 
time from now, but any tips on where to poke at to get started? I've never done any serious reading or modification of BIRD.

Matt

On 4/6/21 21:41, Ondrej Zajicek wrote:
> On Tue, Apr 06, 2021 at 07:26:39PM -0400, Matt Corallo wrote:
>> Hmm, actually, I take that back, sorting them would require re-serializing
>> the wire format, which I've thus far entirely avoided. I suppose I could
>> drop the whole birdc thing, spin up a BGP daemon and use that, but that's a
>> lot more work. Is there an easy way/patch to get birdc to output flowspec
>> rules sorted according to the RFC?
> 
> I see the issue. BIRD does not implement this sorting as it is just for
> flowspec rule execution (i.e. configuring firewall), it is not used in
> BGP session. You could perhaps patch BIRD to do that by adding a mode to
> 'show route' command that would copy all routes to a buffer, do qsort()
> on that, and then send them to birdc. We do not do that for regular
> routes, but it could be a reasonable approach for flowspec routes (as
> i would expect there is much lower number of them).
>