#!/bin/sh
set -e
WAIT_ONLINE_METHOD="ifup"
WAIT_ONLINE_IFACE=""
WAIT_ONLINE_ADDRESS=""
WAIT_ONLINE_TIMEOUT=300
[ -f /etc/default/networking ] && . /etc/default/networking
case "$WAIT_ONLINE_METHOD" in
route)
[ -n "$WAIT_ONLINE_ADDRESS" ] || WAIT_ONLINE_ADDRESS=default
(timeout "$WAIT_ONLINE_TIMEOUT" ip mon r & ip -4 r s; ip -6 r s) | grep -q "^$WAIT_ONLINE_ADDRESS\>"
;;
ping)
if [ -z "$WAIT_ONLINE_ADDRESS" ]; then
echo "No WAIT_ONLINE_ADDRESS specified" >&2
exit 1
fi
timeout "$WAIT_ONLINE_TIMEOUT" sh -c 'while ! ping -q -c 1 -W 1 "'$WAIT_ONLINE_ADDRESS'" >/dev/null; do sleep 1; done'
;;
ping6)
if [ -z "$WAIT_ONLINE_ADDRESS" ]; then
echo "No WAIT_ONLINE_ADDRESS specified" >&2
exit 1
fi
timeout "$WAIT_ONLINE_TIMEOUT" sh -c 'while ! ping6 -q -c 1 -W 1 "'$WAIT_ONLINE_ADDRESS'" >/dev/null; do sleep 1; done'
;;
ifup|iface|interface)
up=false
if [ -z "$WAIT_ONLINE_IFACE" ]; then
auto_list="$(ifquery -X lo --list)"
hotplug_list="$(ifquery -X lo --allow=hotplug --list)"
if [ -n "$auto_list" ]; then
for i in $(seq 1 $WAIT_ONLINE_TIMEOUT); do
up=true
for iface in $auto_list; do
if ! ifquery --state $iface >/dev/null; then
up=false
break
fi
done
if [ $up = true ]; then
break
fi
sleep 1
done
elif [ -n "$hotplug_list" ]; then
for i in $(seq 1 $WAIT_ONLINE_TIMEOUT); do
if [ -n "$(ifquery --state $hotplug_list)" ]; then
up=true
break
fi
sleep 1
done
else
exit 0
fi
else
for i in $(seq 1 $WAIT_ONLINE_TIMEOUT); do
if [ -n "$(ifquery --state $WAIT_ONLINE_IFACE)" ]; then
up=true
break
fi
sleep 1
done
fi
[ $up = true ] || exit 1
;;
no|none)
exit 0
;;
*)
echo "Unknown wait method $WAIT_ONLINE_METHOD" >&2
exit 1
;;
esac
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