dhcpcd-discuss

On 14/05/2013 6:56, Roy Marples wrote:
> Hi Jayce
>
> On 13/05/2013 17:04, jayce lee wrote:
> > I have recreate the 3rd bug in my ubuntu laptop. 
> > I first disconnected my wifi connection and run dhcpcd wlan0 with 
> > the
> > console shows as follows:
> >
> > sudo ./dhcpcd wlan0
> > dhcpcd[17431]: version 5.99.4 starting
> > dhcpcd[17431]: wlan0: waiting for carrier
> >
> > Then I connect my wifi and the bug appears
> >
> >  dhcpcd[17431]: wlan0: carrier acquired
> > dhcpcd[17431]: wlan0: soliciting DHCPv6 address
> > dhcpcd[17431]: wlan0: rebinding lease of 192.168.0.108
> > dhcpcd[17431]: wlan0: sendmsg: Cannot assign requested address 
> > (Errno 99)
> > dhcpcd[17431]: wlan0: deleting address 2002:1234:5678:9abc::253/64
> > dhcpcd[17431]: del_address6 Cannot assign requested address
> > dhcpcd[17431]: wlan0: acknowledged 192.168.0.108 from 192.168.0.1
> > dhcpcd[17431]: wlan0: checking for 192.168.0.108
> > dhcpcd[17431]: wlan0: leased 192.168.0.108 for 86400 seconds
> >
> > Perhaps it's a common bug not only in android.
>
> So the problem here is that we need to send from the IPv6 link local
> address on the interface, but at the point of the error it either
> doesn't exist yet or it's in the tentative state which means we can't
> use it until DAD completes.
>
> I think we need to handle this specific error gracefully and add code
> to if-linux.c and if-bsd.c to listen for IPv6 addresses to become
> available and react accordingly.

This has now been fixed here:
   
http://roy.marples.name/cgi-bin/gitweb.cgi?p=dhcpcd.git;a=commitdiff;h=5f4a495851bdbe4c0098ece90f3a9d945cf9f735

There maybe a failure still if getifaddrs(3) reports tentative 
addresses, but I've not been able to verify that.
However, it now works as you reported on my Debian machine.

Thanks

Roy