- Watch more events for lease file changes
- Improving network up detection by using bootstrap IPv6 along side
IPv4 one.
- Emitting log to notice user that ctrld is starting.
- Using systemd wrapper to provide correct status.
- Restoring DNS on stop on Windows.
On routers where we want to wait for NTP by checking nvram key. Before
waiting, we clean up the router to ensure it's restored to original
state. However, router.Cleanup is not idempotent, causing dnsmasq
restarted. On tomato/ddwrt, restarting have no delay, and spawning new
dnsmasq process immediately. On merlin, somehow it takes time to spawn
new dnsmasq process, causing ctrld wrongly think there's no one
listening on port 53.
Fixing this by ensuring router.Cleanup is idempotent. While at it, also
adding "ntp_done" to nvram key, which is now using on latest ddwrt.
For local config, we don't want to alter what user explicitly set, and
only try filling in missing value.
While at it, also remove the dnsmasq port delete on openwrt, we don't
need that hack anymore.
Config fetching/generating in cd mode is currently weird, error prone,
and easy for user to break ctrld when using custom config.
This commit reworks the flow:
- Fetching config from Control D API.
- No custom config, use the current default config.
- If custom config presents, but there's no listener, use 0.0.0.0:53.
- Try listening on current ip+port config, if ok, ctrld could be a
direct listener with current setup, moving on.
- If failed, trying 127.0.0.1:53.
- If failed, trying current ip + port 5354
- If still failed, pick a random ip:port pair, retry until listening ok.
With this flow, thing is more predictable/stable, and help removing the
Config interface for router.
Depending on system, the output of `/etc/init.d/ctrld status` can be
either "Running" or "running", we must do in-sensitive comparison to get
the right status of ctrld.
The current error message is not much helpful, not all users are able to
investigate system log file to find the reason.
Instead, gathering the log output of "ctrld run" command, and if error
happens or self-check failed, print the log to users.
On some Merlin routers reported by users, ctrld some how is not stopped
properly. So the router does not have a working DNS at boot time to do
ntp synchronization.
To fix it, just clean up the router before start waiting for ntp ready.
