* we need new enough for cmake 3
* but not so new it depends on libubox
This is a "get it working again" patch, not a long-term solution.
Either we should add libubox to liminix or we should find another
dhcp6 client
*something* tries to patch src/openssl.c again in the install phase
(I haven't figured out what) and dies because it can't make
src/openssl.c.orig if it exists already.
we no longer need to remove ipv6 routes from member interfaces when
adding to the bridge, because there will no longer be any ipv6 routes
on the member interfaces
DHCP6 and autoconfig work in tandem not in opposition! dhcp6 does not
provide a default gateway: it depends on router solicitation/router
adverts for that
Tl;dr the network/site admin will ensure that router adverts are being
sent periodically. The adverts will have either Autonomous or Managed
bits set and that is what tells the host to use SLAAC or to use DHCP6
This dosn't work as well as you might think if you didn't know that
the config semantics are weird. By setting 'default' we disable
autoconfig on interfaces that do not yet exist, but setting 'all' here
has no effect.
it is problematic to have dhcp signal readiness when a lease is
acquired, because it holds the s6 service lock while it's waiting
and that can lead to deadlock. Instead, start the dhcp client
"daemon" process and monitor its outputs, bringing up and down
a controlled "dhcp lease acquired" service that other services
(e.g. ntp, or resolvconf, or ...) can declare as a dependency
Adding an interface as a bridge member does not (by itself) remove the
routes which go via that interface, whioch makes them basically into
null routes. This isn't a problem for IPv4 because there were no
addresses anyway, but interfaces can acquire IPv6 addresses via
autodiscovery before they get added to the bridde
Possibly it would be better to disable autodiscovery on these
interfaces. More thought needed.
because there's an ugly deadlock. s6-rc won't start anything else
while waiting for int.link.dhcpc to announce it's ready, and the
-running service needs to call s6-rc to launch the scripts that add
members to the bridge. dhcpc won't work until the bridge has a member
