release/src/router/busybox/examples/var_service/zcip_if/zcip_handler

   1 #!/bin/sh
   2 # executed by zcip
   3 # parameters: $1 and environment
   4 # $1 is:
   5 #
   6 # init: zcip starts. Environment:
   7 # interface=eth0
   8 #
   9 # config: Address is obtained.
  10 # interface=eth0
  11 # ip=169.254.a.b
  12 #
  13 # deconfig: Conflict or link went down.
  14 # interface=eth0
  15
  16 service=${PWD##*/}
  17 file_ipconf="$service.ipconf"
  18 dir_ipconf="/var/run/service/fw"
  19
  20 exec >/dev/null
  21 #exec >>"$0.out"  #debug
  22 exec 2>&1
  23
  24 echo "`date`: Params: $*"
  25
  26 if test x"$1" != x"config"; then
  27         # Reconfigure network with this interface disabled
  28         echo "Deconfiguring"
  29         rm "$file_ipconf"
  30         rm "$dir_ipconf/$file_ipconf"
  31         sv u /var/service/fw
  32         exit
  33 fi
  34
  35 # "config": we've got the address
  36 # Record information for e.g. dhcp_$IF_pinger service
  37 env >"env.out"
  38
  39 ./convert2ipconf "$file_ipconf"
  40 # Reconfigure routing and firewall if needed
  41 diff --brief "$file_ipconf" "$dir_ipconf/$file_ipconf" >/dev/null 2>&1
  42 if test $? != 0; then
  43         echo "Reconfiguring fw"
  44         mkdir -p "$dir_ipconf" 2>/dev/null
  45         cp "$file_ipconf" "$dir_ipconf/$file_ipconf"
  46         sv u /var/service/fw
  47 fi