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#!/bin/sh
# Copyright (C) 2006 OpenWrt.org
. /etc/functions.sh
[ $# = 0 ] && { echo " $0 <group>"; exit; }
[ "x$1" = "x-a" ] && {
config_cb() {
[ interface != "$1" -o -z "$2" ] || eval "$0 $2"
}
config_load network
exit
}
# remove the interface's network state
uci_revert_state network "$1"
include /lib/network
scan_interfaces
cfg=$1
debug "### ifdown $cfg ###"
config_get proto "$cfg" proto
[ -z "$proto" ] && { echo "interface not found."; exit; }
config_get iface "$cfg" device
[ "static" = "$proto" ] && {
env -i ACTION="ifdown" INTERFACE="$cfg" DEVICE="$iface" PROTO=static /sbin/hotplug-call "iface" &
}
# call interface stop handler
( type "stop_interface_$proto" ) >/dev/null 2>/dev/null && eval "stop_interface_$proto '$cfg'"
# make sure all locks are removed
for lock in "/var/lock/dhcp-$iface" "/var/lock/ppp-$iface"; do
[ -f "$lock" ] && {
lock -u "$lock"
sleep 1
}
done
# kill active ppp daemon and other processes
config_get ifname "$cfg" ifname
pids="$(head -n1 -q /var/run/${ifname}.pid /var/run/ppp-${cfg}.pid 2>/dev/null)"
for pid in $pids; do
[ -d "/proc/$pid" ] && {
kill $pid
[ -d "/proc/$pid" ] && {
sleep 1
kill -9 $pid 2>/dev/null >/dev/null
}
}
done
rm -f /var/run/${ifname}.pid /var/run/ppp-${cfg}.pid
config_get ifname "$cfg" ifname
config_get device "$cfg" device
[ ."$device" != ."$ifname" ] || device=
for dev in $ifname $device; do
ifconfig "$dev" 0.0.0.0 down >/dev/null 2>/dev/null
done
config_get iftype "$cfg" type
[ "bridge" = "$iftype" ] && brctl delbr "$ifname" >/dev/null 2>/dev/null
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