#!/bin/sh

set -e

case "$IFACE" in
lo)	exit 0 ;;
fan-*)	exit 0 ;;
esac

case "$ADDRFAM" in
inet) ;;
*) exit 0 ;;
esac

# NOTE: NetworkManager simply does not call out to the normal
#       down hooks as it only checks _after_ the interface has
#       been lost.  Roll with this.
case "$PHASE::$METHOD" in
post-up::static|post-up::dhcp|post-up::NetworkManager)          ;;
pre-down::static|pre-down::dhcp|post-down::NetworkManager)      ;;
*) exit 0 ;;
esac

case "$MODE" in
start|stop)	;;
*) exit 0 ;;
esac

#
# In case ubuntu-fan package has been removed (but not purged) and
# the ifupdown hook(s) are present without the script (LP: #1742712)
#
if [ "$(type fanctl 2>&1|grep 'not found')" != "" ]; then
	exit 0
fi
/usr/sbin/fanctl net "$MODE" "$IFACE"