#!/bin/sh
+# Copyright (C) 2006 OpenWrt.org
+
[ $# = 0 ] && { echo " $0 <group>"; exit; }
. /etc/functions.sh
-. /etc/network.overrides
-[ "$FAILSAFE" != "true" -a -e /etc/config/network ] && . /etc/config/network
+include /lib/network
+scan_interfaces
+
+cfg=$1
+debug "### ifdown $cfg ###"
-debug "### ifdown $type ###"
-type=$1
+config_get proto "$cfg" proto
+[ -z "$proto" ] && { echo "interface not found."; exit; }
-if_proto=$(nvram get ${type}_proto)
-if=$(nvram get ${type}_ifname)
+# kill active ppp daemon
+pid="$(cat /var/run/ppp-${cfg}.pid 2>/dev/null)"
+[ -n "$pid" -a -d "/proc/$pid" ] && {
+ kill $pid
+ sleep 1
+ [ -d "/proc/$pid" ] && kill -9 $pid
+}
-case "$if_proto" in
- pppoa) hotplug_dev unregister atm0; exit 0 ;;
- ""|none) exit 0;;
-esac
+# kill any other process associated with the interface
+config_get ifname "$cfg" ifname
+pid="$(cat /var/run/${ifname}.pid 2>/dev/null)"
+[ -n "$pid" -a -d "/proc/$pid" ] && kill -9 $pid
-[ "${if%%[0-9]*}" = "ppp" ] && if="$(nvram get ${type}_device)"
+config_get ifname "$cfg" ifname
+ifconfig "$ifname" >/dev/null 2>/dev/null && {
+ ifconfig "$ifname" 0.0.0.0 down
-if [ "${if%%[0-9]}" = "br" ]; then
- for sif in $(nvram get ${type}_ifnames); do
- hotplug_dev unregister "$sif"
- done
-fi
-
-hotplug_dev unregister "$if"
+ config_get iftype "$cfg" type
+ [ "$iftype" = "bridge" ] && brctl delbr "$ifname"
+}