Handle the actual trigger to callout dhcpcd-run-hooks in the DAD callback
instead of on receipt of RTM_NEWADDR directly. This is more code, but it allows
us to use our own DAD engine if we need to.
Sadly, it seems that userland cannot send from the unspecified address.
This means that for RFC conformancy, we have to rely on the kernel
performing DAD.
and dhcp.c
Split configure.c into script.c and move the rest into dhcp.c
This starts the goal of making the base of dhcpcd protocol agnostic and
working towards building IPv4 and/or IPv6 code only to reduce size and
allow growing any future new protocol easier.
instead of the kernel. dhcpcd will only do this if RA is disabled in the kernel
or dhcpcd has been instructed to do this via dhcpcd.conf(5) ipv6ra_own and
ipv6ra_own_default directives.
Send and process IPv6 Neighbor Solicitions and Adverts to prove router
reachability. If a router cannot be reached in this way then it is expired.
When debugging, all ND messages are displayed which will create a lot of log
spam.
To ease packaging, ./configure now accepts LDFLAGS and --enable-static.
