HS zone xfer fails with formerr with bind9

[Mark.Andrews at nominum.com]

> 
> So replacing the master is the only hope?  I'm in the
> process of moving the master anyway (the old one will
> be gone completely this summer) but it's going to be
> a slightly prolonged transition and this is causing
> some difficulty.  Thanks for the info.  I'll look at
> the possibility of moving to 9 on the current master.
> 
> Thanks,
>   Jeff
	
Index: bind9/lib/dns/xfrin.c
diff -u bind9/lib/dns/xfrin.c:1.109.2.3 bind9/lib/dns/xfrin.c:1.109.2.4
--- bind9/lib/dns/xfrin.c:1.109.2.3	Sun May 13 20:22:05 2001
+++ bind9/lib/dns/xfrin.c	Tue Jun  5 17:11:57 2001
@@ -526,6 +526,13 @@
 		break;
 
 	case XFRST_AXFR:
+		/*
+		 * Old BIND's sent cross class A records for non IN classes.
+		 */
+		if (rdata->type == dns_rdatatype_a &&
+		    rdata->rdclass != xfr->rdclass &&
+		    xfr->rdclass != dns_rdataclass_in)
+			break;
 		CHECK(axfr_putdata(xfr, DNS_DIFFOP_ADD, name, ttl, rdata));
 		if (rdata->type == dns_rdatatype_soa) {
 			CHECK(axfr_commit(xfr));
> 
> Mark.Andrews at nominum.com wrote:
> > 
> > >
> > > I've been having trouble getting any version of bind9
> > > to transfer an HS class zone as a slave from pre 9
> > > versions of bind.  It works fine in the other direction
> > > and IN class zones work in both directions.  I'm just
> > > wondering if anyone else has seen this or if it's just
> > > something I'm doing wrong.  I don't know how I could be
> > > causing a FORMERR though.
> > >
> > > Thanks,
> > >   Jeff
> > >
> >         The master is most probably sending cross class glue.
> >         We could teach named to ignore it or you could upgrade
> >         the master as it needs upgrading.
> > 
> >         Mark
> > 
> >         P.S. modern BIND 8's don't send cross class glue.
> > --
> > Mark Andrews, Nominum Inc.
> > 1 Seymour St., Dundas Valley, NSW 2117, Australia
> > PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at nominum.com
> 
--
Mark Andrews, Nominum Inc.
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at nominum.com