etc/rc.d/dhclient

   1 #!/bin/sh
   2 #
   3 # $NetBSD: dhclient,v 1.8 2002/03/22 04:33:58 thorpej Exp $
   4 # $FreeBSD: src/etc/rc.d/dhclient,v 1.6 2003/06/29 05:34:41 mtm Exp $
   5 # $DragonFly: src/etc/rc.d/dhclient,v 1.1 2003/07/24 06:35:37 dillon Exp $
   6 #
   7
   8 # PROVIDE: dhclient
   9 # REQUIRE: network netif mountcritlocal
  10 # BEFORE:  NETWORKING
  11 # KEYWORD: DragonFly FreeBSD NetBSD
  12 #
  13 #       Note that there no syslog logging of dhclient messages at boot because
  14 #       dhclient needs to start before services that syslog depends upon do.
  15 #
  16
  17 . /etc/rc.subr
  18 . /etc/network.subr
  19
  20 name="dhclient"
  21 pidfile="/var/run/${name}.pid"
  22 case "${OSTYPE}" in
  23 DragonFly)
  24          rcvar=
  25         start_precmd="dhclient_prestart"
  26         start_postcmd="dhclient_poststart"
  27         stop_cmd="dhclient_stop"
  28         stop_precmd="dhclient_prestop"
  29         stop_postcmd="dhclient_poststop"
  30         ;;
  31
  32 FreeBSD)
  33         rcvar=
  34         start_precmd="dhclient_prestart"
  35         start_postcmd="dhclient_poststart"
  36         stop_cmd="dhclient_stop"
  37         stop_precmd="dhclient_prestop"
  38         stop_postcmd="dhclient_poststop"
  39         ;;
  40 NetBSD)
  41         rcvar=$name
  42         command="/sbin/${name}"
  43         ;;
  44 esac
  45
  46 dhclient_common()
  47 {
  48         dhcp_list="`list_net_interfaces dhcp`"
  49         if [ -z "$dhcp_list" ]; then
  50                 return 1
  51         fi
  52
  53         # Determine the scope of the command
  54         #
  55         _cooked_list="$dhcp_list"
  56         if [ -n "$_cmdifn" ]; then
  57                 eval _cooked_list=\"`expr "$dhcp_list" : ".*\($_cmdifn\).*"`\"
  58                 if [ -z "$_cooked_list" ]; then
  59                         err "No such network interface: $_cmdifn"
  60                         return 1
  61                 fi
  62         fi
  63 }
  64
  65 dhclient_prestart()
  66 {
  67         dhclient_common || return 1
  68
  69         for ifn in ${_cooked_list}; do
  70                 ifscript_up ${ifn}
  71         done
  72
  73         rc_flags="${rc_flags} ${_cooked_list}"
  74         return 0
  75 }
  76
  77 dhclient_poststart()
  78 {
  79         for ifn in ${_cooked_list}; do
  80                 ifalias_up ${ifn}
  81                 ipx_up ${ifn}
  82                 ifconfig ${ifn}
  83         done
  84 }
  85
  86 dhclient_stop()
  87 {
  88         echo -n "Releasing DHCP leases:"
  89         for ifn in $_cooked_list ; do
  90                 ${command} -r $ifn
  91                 if [ $? -eq 0 ]; then
  92                         echo -n " $ifn"
  93                 else
  94                         _fail="$_fail $ifn"
  95                 fi
  96         done
  97         echo '.'
  98         debug "The following leases failed to release: $_fail"
  99 }
 100
 101 dhclient_prestop()
 102 {
 103         dhclient_common || return 1
 104
 105         for ifn in ${_cooked_list}; do
 106                 ipx_down ${ifn}
 107                 ifalias_down ${ifn}
 108         done
 109 }
 110
 111 dhclient_poststop()
 112 {
 113         for ifn in ${_cooked_list}; do
 114                 ifscript_down ${ifn}
 115         done
 116 }
 117
 118 if [ -n "$2" ]; then
 119         _cmdifn="$2"
 120 fi
 121
 122 load_rc_config $name
 123
 124 run_rc_command "$1"