From: Theo Buehler <tb@theobuehler.org>
Subject: Re: rpki-client: remove bird1, add bird3
To: Job Snijders <job@openbsd.org>
Cc: tech@openbsd.org
Date: Fri, 3 Jan 2025 11:13:15 +0100

On Fri, Jan 03, 2025 at 02:08:01AM +0000, Job Snijders wrote:
> On Fri, Jan 03, 2025 at 01:33:38AM +0000, Job Snijders wrote:
> > On Fri, Dec 20, 2024 at 04:31:22PM +0000, Stuart Henderson wrote:
> > > On 2024/12/19 16:31, Job Snijders wrote:
> > > > Remove BIRD 1 output, because BIRD 1 no longer is maintained &
> > > > supported. While there, add BIRD 3 support, which has ASPA.
> > > 
> > > 2.16 has ASPA too. For simplicity bird3/output_bird3 probably do
> > > make sense, but would it be worth a quick note in the manual?
> > > 
> > > >  .Pa bird
> > > >  (for bird2)
> > > > +.Pa bird3
> > > > +(for bird3)
> > > 
> > > (for bird 2.16 or newer)
> > 
> > Ok, let's simplify things and output just one BIRD file while
> > documenting 2.16 or higher is required.
> > 
> > The below works with bird2 and bird3 in ports.
> 
> deraadt@ suggested to move faster. I too see benefits to focus on only
> supporting modern versions of BIRD. -T essentially is a kludge to
> support older versions, so let's remove it right away. With this, the
> changes since the last portable release are:
> 
> * Remove bird1 output, BIRD v1 is deprecated
> * Remove -T option which was used to customize the BIRD table names
> * Add ASPA table to bird output, v2.16+ is required going forward
> 
> OK?

I forgot about -A which means we still have compatibility for earlier
bird 2 and don't unconditionally require a release that isn't even
a month old. The other big argument in favor of this is that we don't
need to introduce another config file which will become bothersome down
the line.

I would still prefer if we tried to remove options only after prior
announcement in release notes, but maybe -T is specialized enough.
There are arguments for and against making -T an error now - I think I
can live with doing what you did.

Some suggestions below. Either way

ok tb

> +	if (fprintf(out, "# For BIRD 2.16+\n#\n") < 0)

Maybe make this 

	if (fprintf(out, "# For BIRD %s+\n#\n", excludeaspa ? "2", "2.16") < 0)

> +	if (fprintf(out, "\nprotocol static {\n\troa4 { table ROAS4; };\n"
> +	    "\n") < 0)

Maybe this is more readable? Dunno.

	if (fprintf(out, "\nprotocol static {\n"
	    "\troa4 { table ROAS4; };\n\n") < 0)
 
and perhaps add something like

> +Create output in the file
>  .Pa bird
> -(for bird2)
> +in the output directory suitable for BIRD internet routing daemon version
> +2.16 and up.

For compatibility with earlier versions, use
.Fl A .