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+#!/bin/sh
+# This is a NetworkManager dispatcher / networkd-dispatcher script for
+# chronyd to set its NTP sources online or offline when a network interface
+# is configured or removed
+
+export LC_ALL=C
+
+chronyc=/usr/bin/chronyc
+
+# For NetworkManager consider only selected events
+if [ $# -ge 2 ]; then
+ case "$2" in
+ up|down|connectivity-change)
+ ;;
+ dhcp4-change|dhcp6-change)
+ # Actions "up" and "connectivity-change" in some cases do not
+ # guarantee that the interface has a route (e.g. a bond).
+ # dhcp(x)-change handles at least cases that use DHCP.
+ ;;
+ *)
+ exit 0;;
+ esac
+fi
+
+# Note: for networkd-dispatcher routable.d ~= on and off.d ~= off
+
+$chronyc onoffline > /dev/null 2>&1
+
+exit 0