[packages/dhcp.git] / dhcp-dhclient-script

#!/bin/sh
# dhclient-script for Linux. Dan Halbert, March, 1997.
# Updated for Linux 2.[12] by Brian J. Murrell, January 1999.

# Notes:

# 0. This script is based on the netbsd script supplied with dhcp-970306.

# 1. This script was modified to work with iproute2

if [ -n "$dhc_dbus" -a -x /usr/bin/dbus-send ]; then
	/usr/bin/dbus-send \
		--system \
		--dest=com.redhat.dhcp \
		--type=method_call \
		/com/redhat/dhcp/$interface \
		com.redhat.dhcp.set \
		'string:'"$(unset PATH SHLVL _ PWD dhc_dbus ; env)"

	if [ $(($dhc_dbus & 31)) -eq 31 ]; then
		exit 0
	fi
fi

calc_prefix()
{
	local old_IFS=$IFS
	IFS='.'
	local netmask=$(echo $1)
	IFS=$old_IFS

	local ret=0
	local endp=0
	for n in $netmask ; do
		for i in 128 64 32 16 8 4 2 1 ; do
			if [ $(($n & $i)) -ne 0 ]; then
				if [ $endp -eq 0 ]; then
					ret=$(($ret + 1))
				else
					echo "32"
					return
				fi
			else
				endp=1
			fi
		done
	done
	echo $ret
}

make_resolv_conf() {
	if [ -n "$new_domain_name_servers" ]; then
		:> /etc/resolv.conf.dhclient
		chmod 644 /etc/resolv.conf.dhclient
		if [ -n "$new_domain_search" ]; then
			echo search $new_domain_search >> /etc/resolv.conf.dhclient
		elif [ -n "$new_domain_name" ]; then
			# Note that the DHCP 'Domain Name Option' is really just a domain
			# name, and that this practice of using the domain name option as
			# a search path is both nonstandard and deprecated.
			echo search $new_domain_name >> /etc/resolv.conf.dhclient
		fi
		for nameserver in $new_domain_name_servers; do
			echo nameserver $nameserver >>/etc/resolv.conf.dhclient
		done
		mv /etc/resolv.conf.dhclient /etc/resolv.conf
	elif [ -n "${new_dhcp6_name_servers}" ] ; then
		:> /etc/resolv.conf.dhclient6
		chmod 644 /etc/resolv.conf.dhclient6

		if [ "x${new_dhcp6_domain_search}" != x ] ; then
			echo search ${new_dhcp6_domain_search} >> /etc/resolv.conf.dhclient6
		fi
		for nameserver in ${new_dhcp6_name_servers} ; do
			echo nameserver ${nameserver} >> /etc/resolv.conf.dhclient6
		done
		mv /etc/resolv.conf.dhclient6 /etc/resolv.conf
	fi
}

# Must be used on exit.
# Invokes the local dhcp client exit hooks, if any.
exit_with_hooks() {
	exit_status=$1

	for i in /etc/dhclient-exit-hooks.d/*[!~,] ; do
		[ -f "$i" ] || continue
		# Don't run *.{rpmsave,rpmorig,rpmnew,swp} scripts
		[ "${i%.rpmsave}" != "${i}" ] && continue
		[ "${i%.rpmorig}" != "${i}" ] && continue
		[ "${i%.rpmnew}" != "${i}" ] && continue
		[ "${i%.swp}" != "${i}" ] && continue
		[ "${i%,v}" != "${i}" ] && continue

		. ${i}
	done
	# probably should do something with exit status of the local script
	exit $exit_status
}

exit_status=0
for i in /etc/dhclient-enter-hooks.d/*[!~,] ; do
	[ -f "$i" ] || continue
	# Don't run *.{rpmsave,rpmorig,rpmnew,swp} scripts
	[ "${i%.rpmsave}" != "${i}" ] && continue
	[ "${i%.rpmorig}" != "${i}" ] && continue
	[ "${i%.rpmnew}" != "${i}" ] && continue
	[ "${i%.swp}" != "${i}" ] && continue
	[ "${i%,v}" != "${i}" ] && continue

	. ${i}
	
	if [ $exit_status -ne 0 ]; then
		exit $exit_status
	fi
done

###
### DHCPv4 Handlers
###

if [ -n "$new_broadcast_address" ]; then
	new_broadcast_arg="broadcast $new_broadcast_address"
fi
if [ -n "$old_broadcast_address" ]; then
	old_broadcast_arg="broadcast $old_broadcast_address"
fi
if [ -n "$new_subnet_mask" ]; then
	new_subnet_arg="$(calc_prefix $new_subnet_mask)"
fi
if [ -n "$old_subnet_mask" ]; then
	old_subnet_arg="$(calc_prefix $old_subnet_mask)"
fi
if [ -n "$alias_subnet_mask" ]; then
	alias_subnet_arg="$(calc_prefix $alias_subnet_mask)"
fi
[ -z "new_subnet_arg" ] && $new_subnet_arg="32"
[ -z "old_subnet_arg" ] && $old_subnet_arg="32"
[ -z "alias_subnet_arg" ] && $alias_subnet_arg="32"

case "$reason" in
  MEDIUM)
	# Linux doesn't do mediums (ok, ok, media).
	;;

  PREINIT)
	if [ -n "$alias_ip_address" ]; then
		/sbin/ip addr del $alias_ip_address/$alias_subnet_arg dev $interface
	fi
	/sbin/ip link set $interface up

	# We need to give the kernel some time to get the interface up.
	sleep 1
	;;

  BOUND|RENEW|REBIND|REBOOT)
	current_hostname=`hostname`
	if [ -z "$current_hostname" ]; then
		hostname $new_host_name
	elif [ "$current_hostname" = "$old_host_name" -a \
	       "$new_host_name" != "$old_host_name" ]; then
		hostname $new_host_name
	fi

	if [ -n "$old_ip_address" -a -n "$alias_ip_address" -a \
	     "$alias_ip_address" != "$old_ip_address" ]; then
		# Possible new alias. Remove old alias.
		/sbin/ip addr del $alias_ip_address/$alias_subnet_arg dev $interface
	fi
	if [ -n "$old_ip_address" -a "$old_ip_address" != "$new_ip_address" ]; then
		# IP address changed.
		/sbin/ip addr del $old_ip_address/$old_subnet_arg dev $interface
		for router in $old_routers; do
			/sbin/ip route del default via $router
		done
		if [ -n "$old_static_routes" ]; then
			set -- $old_static_routes
			while [ $# -gt 1 ]; do
				/sbin/ip route del $1 via $2
				shift; shift
			done
		fi
	fi
	if [ -z "$old_ip_address" -o "$old_ip_address" != "$new_ip_address" -o \
	     "$reason" = "BOUND" -o "$reason" = "REBOOT" ]; then
		/sbin/ip addr add $new_ip_address/$new_subnet_arg $new_broadcast_arg dev $interface
		# Add a network route to the computed network address.
		for router in $new_routers; do
			/sbin/ip route add default via $router
		done
		if [ -n "$new_static_routes" ]; then
			set -- $new_static_routes
			while [ $# -gt 1 ]; do
				/sbin/ip route add $1 via $2
				shift; shift
			done
		fi
	fi
	if [ -n "$alias_ip_address" -a "$new_ip_address" != "$alias_ip_address" ]; then
		/sbin/ip addr add $alias_ip_address/$alias_subnet_arg dev $interface
	fi
	make_resolv_conf
	;;

  EXPIRE|FAIL|RELEASE|STOP)
	if [ -n "$alias_ip_address" ]; then
		# Turn off alias interface.
		/sbin/ip addr del $alias_ip_address/$alias_subnet_arg dev $interface
	fi
	if [ -n "$old_ip_address" ]; then
		/sbin/ip addr del $old_ip_address/$old_subnet_arg dev $interface
		for router in $old_routers; do
			/sbin/ip route del default via $router
		done
		if [ -n "$old_static_routes" ]; then
			set -- $old_static_routes
			while [ $# -gt 1 ]; do
				/sbin/ip route del $1 via $2
				shift; shift
			done
		fi
	fi
	if [ -n "$alias_ip_address" ]; then
		/sbin/ip addr add $alias_ip_address/$alias_subnet_arg dev $interface
	fi
	;;

  TIMEOUT)
	if [ -n "$alias_ip_address" ]; then
		/sbin/ip addr del $alias_ip_address/$alias_subnet_arg dev $interface
	fi
	/sbin/ip addr add $new_ip_address/$new_subnet_arg $new_broadcast_arg dev $interface

	set $new_routers
	if ping -q -c 1 $1; then
		if [ "$new_ip_address" != "$alias_ip_address" ] && \
		   [ -n "$alias_ip_address" ]; then
			/sbin/ip addr add $alias_ip_address/$alias_subnet_arg dev $interface
		fi
		for router in $new_routers; do
			/sbin/ip route add default via $router
		done
		if [ -n "$new_static_routes" ]; then
			set -- $new_static_routes
			while [ $# -gt 1 ]; do
				/sbin/ip route add $1 via $2
				shift; shift
			done
		fi
		make_resolv_conf
		exit_with_hooks 0
	fi

	/sbin/ip addr del $new_ip_address/$new_subnet_arg dev $interface
	for router in $old_routers; do
		/sbin/ip route del default via $router
	done
	if [ -n "$old_static_routes" ]; then
		set -- $old_static_routes
		while [ $# -gt 1 ]; do
			/sbin/ip route del $1 via $2
			shift; shift
		done
	fi
	exit_with_hooks 1
	;;

  PREINIT6)
  	# Ensure interface is up.
	/sbin/ip link set ${interface} up

	# Remove any stale addresses from aborted clients.
	/sbin/ip -f inet6 addr flush dev ${interface} scope global permanent

	exit_with_hooks 0
  	;;
  BOUND6)
  	if [ x${new_ip6_address} = x ] || [ x${new_ip6_prefixlen} = x ] ; then
		exit_with_hooks 2;
	fi

	/sbin/ip -f inet6 addr add ${new_ip6_address}/${new_ip6_prefixlen} \
	dev ${interface} scope global

	# Check for nameserver options.
	make_resolv_conf

	exit_with_hooks 0
	;;

  RENEW6|REBIND6)
        # Make sure nothing has moved around on us.

	# Nameservers/domains/etc.
	if [ "x${new_dhcp6_name_servers}" != "x${old_dhcp6_name_servers}" ] ||
		[ "x${new_dhcp6_domain_search}" != "x${old_dhcp6_domain_search}" ] ; then
		make_resolv_conf
	fi

	exit_with_hooks 0
	;;

  DEPREF6)
        if [ x${new_ip6_prefixlen} = x ] ; then
		exit_with_hooks 2;
	fi

	# There doesn't appear to be a way to update an addr to indicate
	# preference.
	#  /sbin/ip -f inet6 addr ??? ${new_ip6_address}/${new_ip6_prefixlen} \
	#       dev ${interface} scope global deprecated?

	exit_with_hooks 0
	;;

  EXPIRE6|RELEASE6|STOP6)
        if [ x${old_ip6_address} = x ] || [ x${old_ip6_prefixlen} = x ] ; then
		exit_with_hooks 2;
	fi

	/sbin/ip -f inet6 addr del ${old_ip6_address}/${old_ip6_prefixlen} \
	dev ${interface}

	exit_with_hooks 0
	;;
	
  *)
	;;
esac

exit_with_hooks 0
Commit	Line	Data
b606a60a	1	#!/bin/sh
1397e9b3 ER	2	# dhclient-script for Linux. Dan Halbert, March, 1997.
1397e9b3 ER	3	# Updated for Linux 2.[12] by Brian J. Murrell, January 1999.
1397e9b3 ER	4
	5	# Notes:
	6
	7	# 0. This script is based on the netbsd script supplied with dhcp-970306.
	8
b606a60a	9	# 1. This script was modified to work with iproute2
1397e9b3	10
b606a60a MB	11	if [ -n "$dhc_dbus" -a -x /usr/bin/dbus-send ]; then
	12	/usr/bin/dbus-send \
	13	--system \
	14	--dest=com.redhat.dhcp \
	15	--type=method_call \
	16	/com/redhat/dhcp/$interface \
	17	com.redhat.dhcp.set \
	18	'string:'"$(unset PATH SHLVL _ PWD dhc_dbus ; env)"
1397e9b3	19
b606a60a MB	20	if [ $(($dhc_dbus & 31)) -eq 31 ]; then
	21	exit 0
	22	fi
	23	fi
1397e9b3	24
b606a60a MB	25	calc_prefix()
	26	{
	27	local old_IFS=$IFS
	28	IFS='.'
	29	local netmask=$(echo $1)
	30	IFS=$old_IFS
1397e9b3	31
b606a60a MB	32	local ret=0
	33	local endp=0
	34	for n in $netmask ; do
	35	for i in 128 64 32 16 8 4 2 1 ; do
	36	if [ $(($n & $i)) -ne 0 ]; then
	37	if [ $endp -eq 0 ]; then
	38	ret=$(($ret + 1))
	39	else
	40	echo "32"
	41	return
	42	fi
	43	else
	44	endp=1
	45	fi
	46	done
	47	done
	48	echo $ret
	49	}
1397e9b3 ER	50
1397e9b3 ER	51	make_resolv_conf() {
b606a60a MB	52	if [ -n "$new_domain_name_servers" ]; then
	53	:> /etc/resolv.conf.dhclient
	54	chmod 644 /etc/resolv.conf.dhclient
	55	if [ -n "$new_domain_search" ]; then
	56	echo search $new_domain_search >> /etc/resolv.conf.dhclient
	57	elif [ -n "$new_domain_name" ]; then
	58	# Note that the DHCP 'Domain Name Option' is really just a domain
	59	# name, and that this practice of using the domain name option as
	60	# a search path is both nonstandard and deprecated.
	61	echo search $new_domain_name >> /etc/resolv.conf.dhclient
	62	fi
	63	for nameserver in $new_domain_name_servers; do
	64	echo nameserver $nameserver >>/etc/resolv.conf.dhclient
	65	done
	66	mv /etc/resolv.conf.dhclient /etc/resolv.conf
	67	elif [ -n "${new_dhcp6_name_servers}" ] ; then
	68	:> /etc/resolv.conf.dhclient6
	69	chmod 644 /etc/resolv.conf.dhclient6
	70
	71	if [ "x${new_dhcp6_domain_search}" != x ] ; then
	72	echo search ${new_dhcp6_domain_search} >> /etc/resolv.conf.dhclient6
	73	fi
	74	for nameserver in ${new_dhcp6_name_servers} ; do
	75	echo nameserver ${nameserver} >> /etc/resolv.conf.dhclient6
	76	done
	77	mv /etc/resolv.conf.dhclient6 /etc/resolv.conf
	78	fi
1397e9b3 ER	79	}
1397e9b3 ER	80
b606a60a MB	81	# Must be used on exit.
b606a60a MB	82	# Invokes the local dhcp client exit hooks, if any.
1397e9b3	83	exit_with_hooks() {
b606a60a	84	exit_status=$1
51ba29e1 JK	85
	86	for i in /etc/dhclient-exit-hooks.d/*[!~,] ; do
	87	[ -f "$i" ] \|\| continue
	88	# Don't run *.{rpmsave,rpmorig,rpmnew,swp} scripts
	89	[ "${i%.rpmsave}" != "${i}" ] && continue
	90	[ "${i%.rpmorig}" != "${i}" ] && continue
	91	[ "${i%.rpmnew}" != "${i}" ] && continue
	92	[ "${i%.swp}" != "${i}" ] && continue
	93	[ "${i%,v}" != "${i}" ] && continue
	94
	95	. ${i}
	96	done
b606a60a MB	97	# probably should do something with exit status of the local script
b606a60a MB	98	exit $exit_status
1397e9b3 ER	99	}
1397e9b3 ER	100
51ba29e1 JK	101	exit_status=0
	102	for i in /etc/dhclient-enter-hooks.d/*[!~,] ; do
	103	[ -f "$i" ] \|\| continue
	104	# Don't run *.{rpmsave,rpmorig,rpmnew,swp} scripts
	105	[ "${i%.rpmsave}" != "${i}" ] && continue
	106	[ "${i%.rpmorig}" != "${i}" ] && continue
	107	[ "${i%.rpmnew}" != "${i}" ] && continue
	108	[ "${i%.swp}" != "${i}" ] && continue
	109	[ "${i%,v}" != "${i}" ] && continue
b606a60a	110
51ba29e1 JK	111	. ${i}
51ba29e1 JK	112
b606a60a MB	113	if [ $exit_status -ne 0 ]; then
	114	exit $exit_status
	115	fi
51ba29e1	116	done
1397e9b3	117
b606a60a MB	118	###
	119	### DHCPv4 Handlers
	120	###
1397e9b3	121
b606a60a MB	122	if [ -n "$new_broadcast_address" ]; then
b606a60a MB	123	new_broadcast_arg="broadcast $new_broadcast_address"
1397e9b3	124	fi
b606a60a MB	125	if [ -n "$old_broadcast_address" ]; then
b606a60a MB	126	old_broadcast_arg="broadcast $old_broadcast_address"
1397e9b3	127	fi
b606a60a MB	128	if [ -n "$new_subnet_mask" ]; then
b606a60a MB	129	new_subnet_arg="$(calc_prefix $new_subnet_mask)"
1397e9b3	130	fi
b606a60a MB	131	if [ -n "$old_subnet_mask" ]; then
b606a60a MB	132	old_subnet_arg="$(calc_prefix $old_subnet_mask)"
1397e9b3	133	fi
b606a60a MB	134	if [ -n "$alias_subnet_mask" ]; then
b606a60a MB	135	alias_subnet_arg="$(calc_prefix $alias_subnet_mask)"
1397e9b3	136	fi
b606a60a MB	137	[ -z "new_subnet_arg" ] && $new_subnet_arg="32"
	138	[ -z "old_subnet_arg" ] && $old_subnet_arg="32"
	139	[ -z "alias_subnet_arg" ] && $alias_subnet_arg="32"
1397e9b3	140
b606a60a MB	141	case "$reason" in
	142	MEDIUM)
	143	# Linux doesn't do mediums (ok, ok, media).
	144	;;
1397e9b3	145
b606a60a MB	146	PREINIT)
	147	if [ -n "$alias_ip_address" ]; then
	148	/sbin/ip addr del $alias_ip_address/$alias_subnet_arg dev $interface
	149	fi
	150	/sbin/ip link set $interface up
1397e9b3	151
b606a60a MB	152	# We need to give the kernel some time to get the interface up.
	153	sleep 1
	154	;;
1397e9b3	155
b606a60a MB	156	BOUND\|RENEW\|REBIND\|REBOOT)
	157	current_hostname=`hostname`
	158	if [ -z "$current_hostname" ]; then
	159	hostname $new_host_name
	160	elif [ "$current_hostname" = "$old_host_name" -a \
	161	"$new_host_name" != "$old_host_name" ]; then
	162	hostname $new_host_name
	163	fi
1397e9b3	164
b606a60a MB	165	if [ -n "$old_ip_address" -a -n "$alias_ip_address" -a \
	166	"$alias_ip_address" != "$old_ip_address" ]; then
	167	# Possible new alias. Remove old alias.
	168	/sbin/ip addr del $alias_ip_address/$alias_subnet_arg dev $interface
	169	fi
	170	if [ -n "$old_ip_address" -a "$old_ip_address" != "$new_ip_address" ]; then
	171	# IP address changed.
	172	/sbin/ip addr del $old_ip_address/$old_subnet_arg dev $interface
	173	for router in $old_routers; do
	174	/sbin/ip route del default via $router
	175	done
	176	if [ -n "$old_static_routes" ]; then
	177	set -- $old_static_routes
	178	while [ $# -gt 1 ]; do
	179	/sbin/ip route del $1 via $2
	180	shift; shift
	181	done
	182	fi
	183	fi
	184	if [ -z "$old_ip_address" -o "$old_ip_address" != "$new_ip_address" -o \
	185	"$reason" = "BOUND" -o "$reason" = "REBOOT" ]; then
	186	/sbin/ip addr add $new_ip_address/$new_subnet_arg $new_broadcast_arg dev $interface
	187	# Add a network route to the computed network address.
	188	for router in $new_routers; do
	189	/sbin/ip route add default via $router
	190	done
	191	if [ -n "$new_static_routes" ]; then
	192	set -- $new_static_routes
	193	while [ $# -gt 1 ]; do
	194	/sbin/ip route add $1 via $2
	195	shift; shift
	196	done
	197	fi
	198	fi
	199	if [ -n "$alias_ip_address" -a "$new_ip_address" != "$alias_ip_address" ]; then
	200	/sbin/ip addr add $alias_ip_address/$alias_subnet_arg dev $interface
	201	fi
	202	make_resolv_conf
	203	;;
	204
	205	EXPIRE\|FAIL\|RELEASE\|STOP)
	206	if [ -n "$alias_ip_address" ]; then
	207	# Turn off alias interface.
	208	/sbin/ip addr del $alias_ip_address/$alias_subnet_arg dev $interface
	209	fi
	210	if [ -n "$old_ip_address" ]; then
	211	/sbin/ip addr del $old_ip_address/$old_subnet_arg dev $interface
	212	for router in $old_routers; do
	213	/sbin/ip route del default via $router
	214	done
	215	if [ -n "$old_static_routes" ]; then
	216	set -- $old_static_routes
	217	while [ $# -gt 1 ]; do
	218	/sbin/ip route del $1 via $2
	219	shift; shift
	220	done
	221	fi
	222	fi
	223	if [ -n "$alias_ip_address" ]; then
	224	/sbin/ip addr add $alias_ip_address/$alias_subnet_arg dev $interface
	225	fi
	226	;;
	227
	228	TIMEOUT)
229	if [ -n "$alias_ip_address" ]; then
230	/sbin/ip addr del $alias_ip_address/$alias_subnet_arg dev $interface
231	fi
232	/sbin/ip addr add $new_ip_address/$new_subnet_arg $new_broadcast_arg dev $interface
233
234	set $new_routers
235	if ping -q -c 1 $1; then
236	if [ "$new_ip_address" != "$alias_ip_address" ] && \
237	[ -n "$alias_ip_address" ]; then
238	/sbin/ip addr add $alias_ip_address/$alias_subnet_arg dev $interface
239	fi
240	for router in $new_routers; do
241	/sbin/ip route add default via $router
242	done
243	if [ -n "$new_static_routes" ]; then
244	set -- $new_static_routes
245	while [ $# -gt 1 ]; do
246	/sbin/ip route add $1 via $2
247	shift; shift
248	done
249	fi
250	make_resolv_conf
251	exit_with_hooks 0
252	fi
253
254	/sbin/ip addr del $new_ip_address/$new_subnet_arg dev $interface
255	for router in $old_routers; do
256	/sbin/ip route del default via $router
257	done
258	if [ -n "$old_static_routes" ]; then
259	set -- $old_static_routes
260	while [ $# -gt 1 ]; do
261	/sbin/ip route del $1 via $2
262	shift; shift
263	done
264	fi
265	exit_with_hooks 1
266	;;
267
268	PREINIT6)
269	# Ensure interface is up.
270	/sbin/ip link set ${interface} up
271
272	# Remove any stale addresses from aborted clients.
273	/sbin/ip -f inet6 addr flush dev ${interface} scope global permanent
274
275	exit_with_hooks 0
276	;;
277	BOUND6)
278	if [ x${new_ip6_address} = x ] \|\| [ x${new_ip6_prefixlen} = x ] ; then
279	exit_with_hooks 2;
280	fi
281
282	/sbin/ip -f inet6 addr add ${new_ip6_address}/${new_ip6_prefixlen} \
283	dev ${interface} scope global
284
285	# Check for nameserver options.
286	make_resolv_conf
287
288	exit_with_hooks 0
289	;;
290
291	RENEW6\|REBIND6)
292	# Make sure nothing has moved around on us.
293
294	# Nameservers/domains/etc.
295	if [ "x${new_dhcp6_name_servers}" != "x${old_dhcp6_name_servers}" ] \|\|
296	[ "x${new_dhcp6_domain_search}" != "x${old_dhcp6_domain_search}" ] ; then
297	make_resolv_conf
298	fi
299
300	exit_with_hooks 0
301	;;
302
303	DEPREF6)
304	if [ x${new_ip6_prefixlen} = x ] ; then
305	exit_with_hooks 2;
306	fi
307
308	# There doesn't appear to be a way to update an addr to indicate
309	# preference.
310	# /sbin/ip -f inet6 addr ??? ${new_ip6_address}/${new_ip6_prefixlen} \
311	# dev ${interface} scope global deprecated?
312
313	exit_with_hooks 0
314	;;
315
316	EXPIRE6\|RELEASE6\|STOP6)
317	if [ x${old_ip6_address} = x ] \|\| [ x${old_ip6_prefixlen} = x ] ; then
318	exit_with_hooks 2;
319	fi
320
321	/sbin/ip -f inet6 addr del ${old_ip6_address}/${old_ip6_prefixlen} \
322	dev ${interface}
323
324	exit_with_hooks 0
325	;;
326
327	*)
328	;;
329	esac
1397e9b3 ER	330
1397e9b3 ER	331	exit_with_hooks 0