However, I want to have the router try one tunnel setup after I have manually switched it on.
Now, in order to have aiccu successfully set up a tunnel, we will have to ensure a set of conditions is met when we run `aiccu start´.
- IPv4 connectivity to
- IPv4 connectivity to my POP
- local system time must be accurate
In my case, I can reasonably guesstimate the IPv4 connectivity by the presence of a default route.
However, guessing wether the system time is accurate on a system without an RTC is not that trivial - at first glance.
Fortunately, the NTP daemon which comes with OpenWRT can run a program
when it receives a time update, so we can change its init script to
-S /etc/ntp-hook to the ntpd arguments.
1 2 3 4 5 6 7 8 9
The hook just writes the current time into a file
does not exist on bootup. So the presence of
/tmp/date indicates the
ntp-hook has run at least once, which means that we have a proper
1 2 3
Note that we need to be careful to start
the background, so that the init startup process can continue.
1 2 3 4 5
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27