If a ptp4l or phc2sys process is terminated (e.g. due to a crash) and
timemaster was running for at least one second (i.e. it's not an error
in ptp4l/phc2sys configuration), start the process again. Restart all
processes corresponding to the same time source at the same time to
ensure phc2sys is always connected to the currently running ptp4l.
Add a new option to disable the restarting.
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
This allows using a sequence of SHM segments that starts with a number
larger than zero, which can be useful to avoid conflicts with time
sources that are not started by timemaster, e.g. gpsd using segments
number 0 and 1.
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Instead of trying to support all options of the server and refclock
directives in both NTP implementations, add an "ntp_options" option
which specifies a string that is added directly to the lines in the
chronyd/ntpd configuration file.
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
In ntp-4.2.8p1 the segment access was made configurable with the
refclock mode option. Set the mode to 1 to create all SHM segments
with owner-only access.
timemaster is a program that uses ptp4l and phc2sys in combination with
chronyd or ntpd to synchronize the system clock to NTP and PTP time
sources. The PTP time is provided by phc2sys and ptp4l via SHM reference
clocks to chronyd/ntpd, which can compare all time sources and use the
best sources to synchronize the system clock.
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Miroslav Lichvar
IOhannes m zmölnig