* Change network_get_subnet6() to sensibly guess a suitable prefix
Attempt to return the first non-linklocal, non-ula range, then attempt
to return the first non-linklocal range and finally fall back to the
previous behaviour of simply returning the first found item.
* Fix network_get_ipaddrs_all()
Instead of replicating the flawed logic appending a fixed ":1" suffix
to IPv6 addresses, rely on network_get_ipaddrs() and network_get_ipaddrs6()
to build a single list of all interface addresses.
* Fix network_get_subnets6()
Instead of replicating the flawed logic appending a fixed ":1" suffix
to IPv6 addresses, rely on the ipv6-prefix-assignment.local-address
field to figure out the proper network address.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
6426e4edef