release/src/router/busybox/examples/zcip.script

   1 #!/bin/sh
   2
   3 # only for use as a "zcip" callback script
   4 if [ "x$interface" = x ]
   5 then
   6         exit 1
   7 fi
   8
   9 # zcip should start on boot/resume and various media changes
  10 case "$1" in
  11 init)
  12         # for now, zcip requires the link to be already up,
  13         # and it drops links when they go down.  that isn't
  14         # the most robust model...
  15         exit 0
  16         ;;
  17 config)
  18         if [ "x$ip" = x ]
  19         then
  20                 exit 1
  21         fi
  22         # remember $ip for $interface, to use on restart
  23         if [ "x$ip" != x -a -w "$ip.$interface" ]
  24         then
  25                 echo $ip > "$ip.$interface"
  26         fi
  27         exec ip address add dev $interface \
  28                 scope link local "$ip/16" broadcast +
  29         ;;
  30 deconfig)
  31         if [ x$ip = x ]
  32         then
  33                 exit 1
  34         fi
  35         exec ip address del dev $interface local $ip
  36         ;;
  37 esac
  38 exit 1