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 network
   7 scan_interfaces
   8
   9 cfg=$1
  10 debug "### ifdown $cfg ###"
  11
  12 config_get proto "$cfg" proto
  13 [ -z "$proto" ] && { echo "interface not found."; exit; }
  14
  15 # kill active ppp daemon
  16 pid="$(cat /var/run/ppp-${cfg}.pid 2>/dev/null)"
  17 [ -n "$pid" -a -d "/proc/$pid" ] && {
  18         kill $pid
  19         sleep 1
  20         [ -d "/proc/$pid" ] && kill -9 $pid
  21 }
  22
  23 # kill any other process associated with the interface
  24 config_get ifname "$cfg" ifname
  25 pid="$(cat /var/run/${ifname}.pid 2>/dev/null)"
  26 [ -n "$pid" -a -d "/proc/$pid" ] && kill -9 $pid
  27
  28 config_get ifname "$cfg" ifname
  29 ifconfig "$ifname" >/dev/null 2>/dev/null && {
  30         ifconfig "$ifname" 0.0.0.0 down
  31
  32         config_get iftype "$cfg" type
  33         [ "$iftype" = "bridge" ] && brctl delbr "$ifname"
  34 }