package/base-files/default/sbin/ifdown

   1 #!/bin/sh
   2 # Copyright (C) 2006 OpenWrt.org
   3
   4 [ $# = 0 ] && { echo "  $0 <group>"; exit; }
   5 . /etc/functions.sh
   6 include /lib/network
   7 scan_interfaces
   8
   9 cfg=$1
  10 debug "### ifdown $cfg ###"
  11
  12 config_get proto "$cfg" proto
  13 [ -z "$proto" ] && { echo "interface not found."; exit; }
  14
  15 # kill active ppp daemon and other processes
  16 config_get ifname "$cfg" ifname
  17 pids="$(cat /var/run/${ifname}.pid /var/run/ppp-${cfg}.pid 2>/dev/null)"
  18 for pid in $pids; do
  19         [ -d "/proc/$pid" ] && {
  20                 kill $pid
  21                 sleep 1
  22                 [ -d "/proc/$pid" ] && kill -9 $pid
  23         }
  24 done
  25 rm -f /var/run/${ifname}.pid /var/run/ppp-${cfg}.pid
  26
  27 config_get ifname "$cfg" ifname
  28 config_get device "$cfg" ifname
  29
  30 [ ."$device" != ."$ifname" ] || device=
  31 for dev in $ifname $device; do
  32         ifconfig "$ifname" 0.0.0.0 down >/dev/null 2>/dev/null
  33 done
  34
  35 config_get iftype "$cfg" type
  36 [ "$iftype" = "bridge" ] && brctl delbr "$ifname" >/dev/null 2>/dev/null
  37