Problem with latest HEAD and IPv6: in6_ifinit: insertion failed

[Bjoern A. Zeeb]

On Mon, 3 Aug 2009, Li, Qing wrote:

>>
>> I then changed the script to s,fxp0,em1,g s,::1,::2,g and re-run:
>>
>>
> -----------------------------------------------------------------------
>> -
>> dut# sh test.sh
>> 2001:db8::1             0:e0:81:81:13:ad    fxp0 permanent R
>> 2001:db8::1             2001:db8::1                  UH   fxp0
>> em1: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
>> ifconfig: ioctl (SIOCAIFADDR): File exists
>> 2001:db8::1            0:e0:81:81:13:ad    fxp0 permanent  R
>> 2001:db8::2            0:e0:81:81:13:9d     em1 permanent  R
>> 2001:db8::1            2001:db8::1                   UH  fxp0
>> 2001:db8::2            2001:db8::2                   UH  em1
>> em1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
> 1500
>>
> -----------------------------------------------------------------------
>
>
> Your output appears to come from either an outdated in6.c
> or a custom version.  I expect to see something like the
> following for each interface address from netstat output:
>
> Destination		Gateway		Flags		Netif
> expire
> -----------------------------------------------------------------------
> 2001:db8::1		link#1		UHS		lo0
> 2001:db8::2		link#2		UHS		lo0
> -----------------------------------------------------------------------

Yes I would as well, unless something bad happens(tm).

> Please verify your source file.

bz at dut:/dut/bz/HEAD.svn% ident sys/netinet6/in6.c
sys/netinet6/in6.c:
      $KAME: in6.c,v 1.259 2002/01/21 11:37:50 keiichi Exp $
      $FreeBSD: head/sys/netinet6/in6.c 196019 2009-08-01 19:26:27Z rwatson $
bz at dut:/dut/bz/HEAD.svn% svn status sys/netinet6/in6.c
bz at dut:/dut/bz/HEAD.svn%

And as you can see the IFF_POINTOPOINT from your last commit are not there
anymore:

    1193         /*
    1194          * Remove the loopback route to the interface address.
    1195          * The check for the current setting of "nd6_useloopback" is not needed.
    1196          */
    1197         if (!(ia->ia_ifp->if_flags & IFF_LOOPBACK)) {

    1776         /*
    1777          * add a loopback route to self
    1778          */
    1779         if (V_nd6_useloopback && !(ifp->if_flags & IFF_LOOPBACK)) {


/bz

-- 
Bjoern A. Zeeb                      The greatest risk is not taking one.