dhclient revision 140339 
1#!/bin/sh
2#
3# $NetBSD: dhclient,v 1.8 2002/03/22 04:33:58 thorpej Exp $
4# $FreeBSD: head/etc/rc.d/dhclient 140339 2005-01-16 03:12:03Z obrien $
5#
6
7# PROVIDE: dhclient
8# REQUIRE: netif ipfw ipfilter mountcritlocal cleanvar
9# BEFORE:  NETWORKING
10# KEYWORD: nojail
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
19name="dhclient"
20rcvar=
21pidfile="/var/run/${name}.pid"
22start_precmd="dhclient_prestart"
23start_postcmd="dhclient_poststart"
24stop_precmd="dhclient_prestop"
25stop_postcmd="dhclient_poststop"
26
27dhclient_common()
28{
29	dhcp_list="`list_net_interfaces dhcp`"
30	if [ -z "$dhcp_list" ]; then
31		return 1
32	fi
33
34	# Determine the scope of the command
35	#
36	_cooked_list="$dhcp_list"
37	if [ -n "$_cmdifn" ]; then
38		eval _cooked_list=\"`expr "$dhcp_list" : ".*\($_cmdifn\).*"`\"
39		if [ -z "$_cooked_list" ]; then
40			err 1 "No such network interface: $_cmdifn"
41		fi
42	fi
43}
44
45dhclient_prestart()
46{
47	if [ $dhclient_common_error -eq 1 ]; then
48		return 1
49	fi
50	for ifn in ${_cooked_list}; do
51		ifscript_up ${ifn}
52	done
53
54	if checkyesno background_dhclient; then
55		rc_flags="${rc_flags} -nw"
56	fi
57
58	rc_flags="${rc_flags} ${_cooked_list}"
59	return 0
60}
61
62dhclient_poststart()
63{
64	for ifn in ${_cooked_list}; do
65		ifalias_up ${ifn}
66		ipx_up ${ifn}
67		ifconfig ${ifn}
68	done
69}
70
71dhclient_prestop()
72{
73	if [ $dhclient_common_error -eq 1 ]; then
74		return 1
75	fi
76	for ifn in ${_cooked_list}; do
77		ipx_down ${ifn}
78		ifalias_down ${ifn}
79	done
80	echo -n "Releasing DHCP leases:"
81	for ifn in $_cooked_list ; do
82		${command} -r $ifn
83		if [ $? -eq 0 ]; then
84			echo -n " $ifn"
85		else
86			_fail="$_fail $ifn"
87		fi
88	done
89	echo '.'
90	debug "The following leases failed to release: $_fail"
91}
92
93dhclient_poststop()
94{
95	for ifn in ${_cooked_list}; do
96		ifscript_down ${ifn}
97	done
98}
99
100if [ -n "$2" ]; then
101	_cmdifn="$2"
102	stop_cmd=":"
103fi
104
105load_rc_config $name
106dhclient_common_error=0
107dhclient_common || dhclient_common_error=1;
108if [ -n "$_cooked_list" ]; then
109	if [ -s $pidfile ]; then
110		stop_cmd=":"
111	fi
112fi
113run_rc_command "$1"
114