dhcpcd-discuss

Hi Roy,

On Tue, Sep 6, 2016 at 12:25 AM, Roy Marples <roy@xxxxxxxxxxxx> wrote:
> Hi Guy
>
> On Saturday 03 September 2016 13:05:09 Guy Yur wrote:
>> Tested with VirutalBox, 2 cpu cores and em0 interface.
>> dhcpcd trunk 018576c771 unpatched.
>> FreeBSD 10.3 and head r305297.
>>
>> 1. kernel with D5469 as only networking change.
>> 2. kernel with no networking changes.
>>
>> 1. IPv6 EUI64 link local and EUI64 ULA configured before dhcpcd starts.
>> dhcpcd adding "slaac private" ULA and global from RA.
>> 2. No preconfigured addresses.
>> dhcpcd adding "slaac private" link local, ULA and global from RA.
>>
>> IPv4 and IPv6 addresses added by dhcpcd are removed on link disconnect
>> or "if down" in all scenarios above.
>> IPv4 and IPv6 addresses are restored on link disconnect/reconnect
>> for all scenarios above.
>> IPv4 address is restored on "if down/if up" for all scenarios.
>> IPv6 addresses are restored on "if down/if up" if the kernel has D5469.
>> IPv6 addresses are restored on "if down/if up" when the kernel
>> doesn't have D5469 only if no preconfigured link local and ULA.
>
> I finally got some time to install a fresh FreeBSD-10.3 amd64 QEMU image on my
> Linux dev box (so no patches) and fixed dhcpcd in all the above scenarios.
>
> The basic fix was to reset the internal address flags on carrier up and when
> starting IPv6 check the address flag for the LL address and if tentative start
> the address polling mechanism as we have for the other flags.
>
> So basically try a new dhcpcd trunk please as I put some other patches in too.
>
> Fingers crossed, dhcpcd should now be fine for all your scenarios!
> Let me know and if success a new release will be soon :)
>
> Roy

trunk 9e0887e946 works for "if down/if up" with
preconfigured link local and ULA without D5469.

All other scenarios are still working.

Thanks,
Guy