src/dhclient-helper

   1 #!/bin/bash
   2
   3 . /usr/lib/network/functions
   4
   5 action="${1}"
   6 assert isset action
   7
   8 interface="${2}"
   9 assert isset interface
  10
  11 proto=${3}
  12 assert isset proto
  13
  14 # Check if the given interface is a zone.
  15 assert zone_exists ${interface}
  16
  17 case "${action}" in
  18         start)
  19                 # Create dhclient configuration file.
  20                 case "${proto}" in
  21                         ipv4)
  22                                 config_file="${RUN_DIR}/dhclient/${interface}/dhclient4.conf"
  23                                 ;;
  24                         ipv6)
  25                                 config_file="${RUN_DIR}/dhclient/${interface}/dhclient6.conf"
  26                                 ;;
  27                 esac
  28                 assert isset config_file
  29
  30                 dhclient_write_config ${interface} ${config_file} \
  31                         --hostname="${HOSTNAME%%.*}"
  32
  33                 exit ${EXIT_OK}
  34                 ;;
  35
  36         stop)
  37                 case "${proto}" in
  38                         ipv4)
  39                                 reason="STOP"
  40                                 ;;
  41                         ipv6)
  42                                 reason="STOP6"
  43                                 ;;
  44                 esac
  45                 assert isset reason
  46
  47                 export interface
  48                 export reason
  49
  50                 exec /usr/sbin/dhclient-script
  51
  52                 log ERROR $"execing dhclient-script has failed."
  53                 exit ${EXIT_ERROR}
  54                 ;;
  55
  56         *)
  57                 log ERROR "Unknown action passed: ${action}"
  58                 exit ${EXIT_ERROR}
  59                 ;;
  60 esac