bird 1.4.3 ospfv3 issue on openbsd

[Job Snijders]

Hi all,

I've upgraded up and down to see when the issue was introduced: between
1.4.0 and 1.4.1. 

Ondrej, Martin, how can I help debug this? Would you like access to the
machines?

Kind regards,

Job

On Mon, Jun 23, 2014 at 04:02:25PM +0000, Job Snijders wrote:
> Hi all,
> 
> I just upgraded from 1.4.0 to 1.4.3 (compiled from -current ports) on OpenBSD
> 5.5, now OSPFv3 adjecencies don't establish any longer, they remain stuck in
> exstart. I saw a thread a while ago about IPv6 issues on FreeBSD with 1.4.1,
> maybe this is related but the bug fix does not work on OpenBSD?
> 
> syslog is filled with these messages:
> 
>     Jun 23 15:34:14 dcg-1 bird6: ospf1: Socket error on bnx0: Invalid argument
>     Jun 23 15:34:24 dcg-1 last message repeated 6 times
>     Jun 23 15:34:24 dcg-1 bird6: ospf1: Socket error on bnx2: Invalid argument
>     Jun 23 15:34:24 dcg-1 bird6: ospf1: Socket error on bnx0: Invalid argument
>     Jun 23 15:34:28 dcg-1 last message repeated 3 times
> 
> this is my config:
> 
>     [root at dcg-1 ~]# cat /etc/bird6.conf
>     log syslog all;
>     router id 94.142.247.1;
>     protocol kernel {
>             scan time 20;
>             export all;
>     }
>     protocol device {
>             scan time 2;
>     }
>     protocol direct {
>             interface "lo1";
>             interface "bnx0";
>             interface "bnx2";
>     }
>     protocol static {
>             route 2a02:898::/32 blackhole;
>     }
>     filter only_loopbacks {
>             if net ~ [ 2a02:898:0:300:0:0:0:0/64{128,128} ] then accept;
>             reject;
>     }
>     protocol ospf ospf1 {
>             tick 2;
>             rfc1583compat yes;
>             import filter only_loopbacks;
>             export filter only_loopbacks;
>             area 0.0.0.0 {
>                     interface "bnx0", "bnx2" {
>                             hello 10; retransmit 2; wait 10; dead 40;
>                             type pointopoint;
>                     };
> 
>             };
>     }
> 
>     [root at dcg-1 ~]# birdc6 show ospf nei
>     BIRD 1.4.3 ready.
>     ospf1:
>     Router ID       Pri          State      DTime   Interface  Router IP   
>     195.85.225.5    128      exstart/ptp    00:34   bnx0       fe80::21f:12ff:fe1c:3482 
> 
> Kind regards,
> 
> Job