diff options
Diffstat (limited to 'layout/rootfs/etc/s6-rc/source-base/init-clock')
4 files changed, 75 insertions, 0 deletions
diff --git a/layout/rootfs/etc/s6-rc/source-base/init-clock/dependencies b/layout/rootfs/etc/s6-rc/source-base/init-clock/dependencies new file mode 100644 index 0000000..7988b5d --- /dev/null +++ b/layout/rootfs/etc/s6-rc/source-base/init-clock/dependencies @@ -0,0 +1,2 @@ +activate-eth0 +dnscache diff --git a/layout/rootfs/etc/s6-rc/source-base/init-clock/down b/layout/rootfs/etc/s6-rc/source-base/init-clock/down new file mode 100644 index 0000000..8b13789 --- /dev/null +++ b/layout/rootfs/etc/s6-rc/source-base/init-clock/down @@ -0,0 +1 @@ + diff --git a/layout/rootfs/etc/s6-rc/source-base/init-clock/type b/layout/rootfs/etc/s6-rc/source-base/init-clock/type new file mode 100644 index 0000000..bdd22a1 --- /dev/null +++ b/layout/rootfs/etc/s6-rc/source-base/init-clock/type @@ -0,0 +1 @@ +oneshot diff --git a/layout/rootfs/etc/s6-rc/source-base/init-clock/up b/layout/rootfs/etc/s6-rc/source-base/init-clock/up new file mode 100644 index 0000000..43e0c65 --- /dev/null +++ b/layout/rootfs/etc/s6-rc/source-base/init-clock/up @@ -0,0 +1,71 @@ +#!/command/execlineb -P + +# Get the local country code as well as a few other codes +# for countries all around the world. + +pipeline +{ + s6-setuidgid nobody + foreground + { + s6-envdir /etc/s6-linux-init/env-stage2 + import -u COUNTRY_CODE + s6-echo ${COUNTRY_CODE} + } + forx CODE { uk de ru cn kr jp us ca br au il za } + import -u CODE + s6-echo ${CODE} +} + + +# Suppress duplicates (e.g. if the local country code is in the list). + +pipeline +{ + s6-setuidgid nobody + s6-sort -u +} + + +# Get the IP addresses for some NTP servers in those countries. +# Limit the DNS queries to 30 seconds: if the DNS is slower than +# that, chances are the server isn't good for us anyway. +# All the queries are parallelized, so it's fast. + +pipeline +{ + s6-setuidgid nobody + forstdin -p -d"\n" CODE + import -u CODE + forx -p I { 0 1 } + import -u I + redirfd -w 2 /dev/null + s6-dnsip4 -t 30000 -- ${I}.${CODE}.pool.ntp.org +} + + +# Ask for a NTP exchange with the servers we get. Accept anything. +# If the exchange can't be completed in 5 seconds, kill it. +# All the queries are parallelized. + +pipeline +{ + s6-setuidgid ntp + forstdin -p -d"\n" NTPSERVERIP + import -u NTPSERVERIP + redirfd -w 2 /dev/null + s6-sntpclock -f -T 5000 ${NTPSERVERIP} +} + + +# Take the first answer we get. + +pipeline +{ + s6-setuidgid nobody + s6-head -Sc 12 +} + +# Update the system clock. Accept anything. + +s6-clockadd -f |