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 1.9 2007/06/17 14:08:00 swildner 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 1 "No such network interface: $_cmdifn"
  43                 fi
  44         fi
  45 }
  46
  47 dhclient_prestart()
  48 {
  49         dhclient_common || return $?
  50
  51         for ifn in ${_cooked_list}; do
  52                 ifscript_up ${ifn}
  53         done
  54
  55         rc_flags="${rc_flags} ${_cooked_list}"
  56         return 0
  57 }
  58
  59 dhclient_poststart()
  60 {
  61         for ifn in ${_cooked_list}; do
  62                 ifalias_up ${ifn}
  63                 ipx_up ${ifn}
  64                 ifconfig ${ifn}
  65         done
  66 }
  67
  68 dhclient_stop()
  69 {
  70         echo -n "Releasing DHCP leases:"
  71         for ifn in $_cooked_list ; do
  72                 ${command} -r $ifn
  73                 if [ $? -eq 0 ]; then
  74                         echo -n " $ifn"
  75                 else
  76                         _fail="$_fail $ifn"
  77                 fi
  78         done
  79         echo '.'
  80         debug "The following leases failed to release: $_fail"
  81 }
  82
  83 dhclient_prestop()
  84 {
  85         dhclient_common || return $?
  86
  87         for ifn in ${_cooked_list}; do
  88                 ipx_down ${ifn}
  89                 ifalias_down ${ifn}
  90         done
  91         return 0
  92 }
  93
  94 dhclient_poststop()
  95 {
  96         for ifn in ${_cooked_list}; do
  97                 ifscript_down ${ifn}
  98         done
  99 }
 100
 101 if [ -n "$2" ]; then
 102         _cmdifn="$2"
 103 fi
 104
 105 load_rc_config $name
 106
 107 run_rc_command "$1"