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 1.8 2006/06/03 10:41:26 y0netan1 Exp $
   6 #
   7
   8 # PROVIDE: dhclient
   9 # REQUIRE: netif mountcritlocal
  10 # BEFORE:  NETWORKING
  11 #
  12 #       Note that there no syslog logging of dhclient messages at boot because
  13 #       dhclient needs to start before services that syslog depends upon do.
  14 #
  15
  16 . /etc/rc.subr
  17 . /etc/network.subr
  18
  19 name="dhclient"
  20 pidfile="/var/run/${name}.pid"
  21         rcvar=
  22         start_precmd="dhclient_prestart"
  23         start_postcmd="dhclient_poststart"
  24         stop_cmd="dhclient_stop"
  25         stop_precmd="dhclient_prestop"
  26         stop_postcmd="dhclient_poststop"
  27
  28
  29 dhclient_common()
  30 {
  31         dhcp_list="`list_net_interfaces dhcp`"
  32         if [ -z "$dhcp_list" ]; then
  33                 return $RC_IRRELEVANT
  34         fi
  35
  36         # Determine the scope of the command
  37         #
  38         _cooked_list="$dhcp_list"
  39         if [ -n "$_cmdifn" ]; then
  40                 eval _cooked_list=\"`expr "$dhcp_list" : ".*\($_cmdifn\).*"`\"
  41                 if [ -z "$_cooked_list" ]; then
  42                         err "No such network interface: $_cmdifn"
  43                         return 1
  44                 fi
  45         fi
  46 }
  47
  48 dhclient_prestart()
  49 {
  50         dhclient_common || return $?
  51
  52         for ifn in ${_cooked_list}; do
  53                 ifscript_up ${ifn}
  54         done
  55
  56         rc_flags="${rc_flags} ${_cooked_list}"
  57         return 0
  58 }
  59
  60 dhclient_poststart()
  61 {
  62         for ifn in ${_cooked_list}; do
  63                 ifalias_up ${ifn}
  64                 ipx_up ${ifn}
  65                 ifconfig ${ifn}
  66         done
  67 }
  68
  69 dhclient_stop()
  70 {
  71         echo -n "Releasing DHCP leases:"
  72         for ifn in $_cooked_list ; do
  73                 ${command} -r $ifn
  74                 if [ $? -eq 0 ]; then
  75                         echo -n " $ifn"
  76                 else
  77                         _fail="$_fail $ifn"
  78                 fi
  79         done
  80         echo '.'
  81         debug "The following leases failed to release: $_fail"
  82 }
  83
  84 dhclient_prestop()
  85 {
  86         dhclient_common || return $?
  87
  88         for ifn in ${_cooked_list}; do
  89                 ipx_down ${ifn}
  90                 ifalias_down ${ifn}
  91         done
  92         return 0
  93 }
  94
  95 dhclient_poststop()
  96 {
  97         for ifn in ${_cooked_list}; do
  98                 ifscript_down ${ifn}
  99         done
 100 }
 101
 102 if [ -n "$2" ]; then
 103         _cmdifn="$2"
 104 fi
 105
 106 load_rc_config $name
 107
 108 run_rc_command "$1"