units/scripts/network.sh

#!/bin/bash
# $Id$
# Magellan network configuration script for systemd

# read values from files
read_value()
{
	local var="$1"
	local file="$2"
	local value

	# local all possible vars
	# global
	local ONBOOT
	local NETWORKING

	# static
	local IP
	local NETMASK
	local BROADCAST
	local NETWORKING
	local FORCE_MAC_TO

	# dhcp
	local DHCP_PROG
	local DHCP_START
	local DHCP_STOP

	# default gw
	local GATEWAY
	local GATEWAY_IF

	# wireless extensions
	local WIRELESS_AP
	local WIRELESS_AUTH_MODE
	local WIRELESS_BITRATE
	local WIRELESS_CHANNEL
	local WIRELESS_DEFAULT_KEY
	local WIRELESS_ESSID
	local WIRELESS_FREQUENCY
	local WIRELESS_KEY
	local WIRELESS_KEY_ASCII
	local WIRELESS_KEY_0
	local WIRELESS_KEY_1
	local WIRELESS_KEY_2
	local WIRELESS_KEY_3
	local WIRELESS_KEY_LENGTH
	local WIRELESS_MODE
	local WIRELESS_NICK
	local WIRELESS_NWID
	local WIRELESS_POWER
	local WIRELESS_WPA_DRIVER

	local BRIDGE_INTERFACES
	local BRIDGE_STP
	local BRIDGE_AGEING_TIME
	local BRIDGE_PRIORITY
	local BRIDGE_FORWARD_DELAY
	local BRIDGE_HELLO_TIME
	local BRIDGE_MAX_MESSAGE_AGE
	local BRIDGE_PATH_COST
	local BRIDGE_PORT_PRIORITY

	source ${file}
	eval value=\$$(echo ${var})
	echo "${value}"
}

checkconfig()
{
	if [[ -z ${NETWORKING} ]]
	then
		echo "NETWORKING missing in net.${iface}, aborted"
		exit 1
	fi

	case "${NETWORKING}" in
	static)
		if [[ -z ${IP} ]]
		then
			echo "IP missing in net.${iface}, aborted"
			exit 1
		fi

		if [[ -z ${NETMASK} ]]
		then
			echo -n "NETMASK missing in net.${iface}, "
			echo "using 255.255.255.0"
			NETMASK=255.255.255.0
		fi

		if [[ -z ${BROADCAST} ]]
		then
			echo -n "BROADCAST missing in net.${iface}, "
			echo "using default address"
		fi
		;;

	dhcp)
		if [[ -z ${DHCP_PROG} ]]
		then
			echo -n "DHCP_PROG missing in net.${iface},"
			echo "using default programm /sbin/dhcpcd"
			DHCP_PROG="/sbin/dhcpcd"
		fi
		[[ -z ${DHCP_START} ]] && DHCP_START="-t 10"
		[[ -z ${DHCP_STOP} ]] && DHCP_STOP="-k"
		;;

	esac
}

# onboot_interface_list /path/to/files*
onboot_interface_list()
{
	local file
	local devices
	local iface

	# get list of all devices
	for file in $@
	do
		iface="$(basename ${file} | sed s/net.//)"

		# exclude backup files and exclude net.routes and net.sample too
		case "${iface}" in
			*~) continue ;;
			routes) continue ;;
			sample) continue ;;
		esac

		if [[ $(read_value ONBOOT ${file}) = yes ]]
		then
			devices="${devices} ${iface}"
		fi
	done

	echo "${devices}"
}

config_wireless_wep()
{
	local iface="$1"

	if [[ -z ${iface} ]]
	then
		echo "WEP: no \$iface given. Aborting setup."
		return 1
	fi

	iwconfig "${iface}" enc on
	[[ -n ${WIRELESS_KEY_LENGTH} ]] && iwconfig "${iface}" enc "${WIRELESS_KEY_LENGTH}"
	[[ -n ${WIRELESS_KEY} ]] && iwconfig "${iface}" key "${WIRELESS_KEY}"
	[[ -n ${WIRELESS_KEY_ASCII} ]] && iwconfig "${iface}" key s:"${WIRELESS_KEY_ASCII}"
}

config_wireless_wpa()
{
	local iface="$1"

	if [[ -z ${iface} ]]
	then
		echo "WPA: no \$iface given. Aborting setup."
		return 1
	fi

	if [ ! -x /sbin/wpa_supplicant ]
	then
		echo "WPA: wpa_supplicant not installed. Aborting setup."
		return 1
	fi

	# get default settings
	[[ -f /etc/conf.d/wpa_supplicant ]] && source /etc/conf.d/wpa_supplicant

	# check the configuration
	[[ -z ${WIRELESS_WPA_CONFIG} ]] && WIRELESS_WPA_CONFIG=/etc/wpa_supplicant.auto
	[[ -z ${WIRELESS_WPA_SKEL} ]] && WIRELESS_WPA_SKEL=/etc/conf.d/wpa_supplicant.skel

	# use wext as default driver, do not abort here anymore
	[[ -z ${WIRELESS_WPA_DRIVER} ]] && WIRELESS_WPA_DRIVER=wext

	# write a config with the settings from net.${iface}
	# only wpa-psk ! all other needs manual setup
	if [[ ${WIRELESS_WPA_AUTOCONF} = true ]]
	then
		# write default cfg from skeleton
		cat ${WIRELESS_WPA_SKEL} > ${WIRELESS_WPA_CONFIG}

		local wpa_proto
		case ${WIRELESS_AUTH_MODE} in
			wpa) wpa_proto="WPA" ;;
			wpa2) wpa_proto="WPA2" ;;
		esac

		# setup the network entry
		sed -i -e "s:@WIRELESS_ESSID@:${WIRELESS_ESSID}:g" \
			-e "s:@WIRELESS_KEY@:${WIRELESS_KEY_ASCII}:g" \
			-e "s:@WIRELESS_AUTH_MODE@:${wpa_proto}:g" \
			${WIRELESS_WPA_CONFIG}
	fi

	# remove old state dir
	[ -d /var/run/wpa_supplicant ] && rm -rf /var/run/wpa_supplicant

	# now run the wpa_supplicant dameon
	wpa_supplicant -B \
		-D"${WIRELESS_WPA_DRIVER}" \
		-c"${WIRELESS_WPA_CONFIG}" \
		-i"${iface}" \
		${WIRELESS_WPA_OPTS}

	# echo wait 5 seconds
	echo "    Waiting 5 seconds to retrieve authentification reply ... "
	sleep 5
}

setup_wireless_extensions()
{
	local iface="$1"

	if [[ -z ${iface} ]]
	then
		echo "WIRELESS_EXTENSIONS: no \$iface given. Aborting setup."
		return 1
	fi

	[[ -n ${WIRELESS_BITRATE} ]] && iwconfig "${iface}" rate "${WIRELESS_BITRATE}"
	[[ -n ${WIRELESS_CHANNEL} ]] && iwconfig "${iface}" channel "${WIRELESS_CHANNEL}"
	[[ -n ${WIRELESS_ESSID} ]] && iwconfig "${iface}" essid "${WIRELESS_ESSID}"
	[[ -n ${WIRELESS_FREQUENCY} ]] && iwconfig "${iface}" freq "${WIRELESS_FREQUENCY}"
	[[ -n ${WIRELESS_MODE} ]] && iwconfig "${iface}" mode "${WIRELESS_MODE}"
	[[ -n ${WIRELESS_NICK} ]] && iwconfig "${iface}" nick "${WIRELESS_NICK}"

	case "${WIRELESS_AUTH_MODE}" in
		wpa|wpa2) config_wireless_wpa "${iface}" ;;
		wep|on) config_wireless_wep "${iface}" ;;
		off) iwconfig "${iface}" enc off ;;
	esac
}

config_bridge_options()
{
	local iface="$1"
	local i
	local port
	local cost
	local prio

	# enable spanning-tree protocol
	case ${BRIDGE_STP} in
		on|off) brctl stp "${iface}" "${BRIDGE_STP}" ;;
		*) echo "BRIDGE: unkown value \$BRIDGE_STP='$BRIDGE_STP'."; return 1 ;;
	esac

	# configure ageing time
	if [[ ! -z ${BRIDGE_AGEING_TIME} ]]
	then
		brctl setageing "${iface}" "${BRIDGE_AGEING_TIME}"
	fi

	# configure bridge priority
	if [[ ! -z ${BRIDGE_PRIORITY} ]]
	then
		brctl setbridgeprio "${iface}" "${BRIDGE_PRIORITY}"
	fi

	# configure forward delay
	if [[ ! -z ${BRIDGE_FORWARD_DELAY} ]]
	then
		brctl setfd "${iface}" "${BRIDGE_FORWARD_DELAY}"
	fi

	# configure hello time
	if [[ ! -z ${BRIDGE_HELLO_TIME} ]]
	then
		brctl sethello "${iface}" "${BRIDGE_HELLO_TIME}"
	fi

	# configure maximal message age
	if [[ ! -z ${BRIDGE_MAX_MESSAGE_AGE} ]]
	then
		brctl setmaxage "${iface}" "${BRIDGE_MAX_MESSAGE_AGE}"
	fi

	# configure path cost for every port
	if [[ ! -z ${BRIDGE_PATH_COST} ]]
	then
		for i in ${BRIDGE_PATH_COST}
		do
			port="${i%=*}"
			cost="${i#*=}"
			[[ ! -z ${port} ]] && brctl pathcost "${iface}" "${port}" "${cost}"
		done
	fi

	# configure port priority for every port
	if [[ ! -z ${BRIDGE_PORT_PRIORITY} ]]
	then
		for i in ${BRIDGE_PORT_PRIORITY}
		do
			port="${i%=*}"
			prio="${i#*=}"
			[[ ! -z ${port} ]] && brctl setportprio "${iface}" "${port}" "${prio}"
		done
	fi
}

config_bridge_devices()
{
	local iface="$1"
	local method="$2"
	local bport

	if [[ -z ${iface} ]]
	then
		echo "BRIDGE: no \$iface given. Aborting setup."
		return 1
	fi

	if [[ -z ${method} ]]
	then
		echo "BRIDGE: no \$method given. Aborting setup."
		return 1
	fi

	# first check for brctl
	if [[ -z $(which brctl) ]]
	then
		echo "brctl not found! Please install 'net-misc/bridge-utils'."
		return 1
	fi

	# check the config
	if [[ -z ${BRIDGE_INTERFACES} ]]
	then
		echo "BRIDGE: no \$BRIDGE_INTERFACES given. Aborting setup."
		return 1
	fi

	case ${method} in
		add)
			# setup the bridge device
			brctl addbr "${iface}"
			for bport in ${BRIDGE_INTERFACES}
			do
				# enter promiscous mode
				ifconfig "${bport}" 0.0.0.0 promisc
				# now setup the bridge
				brctl addif "${iface}" "${bport}"
			done
			# configure all other options
			config_bridge_options "${iface}"
			;;

		remove)
			for bport in ${BRIDGE_INTERFACE}
			do
				# bring the interface down
				ifconfig "${bport}" down
				# remove the interface from the bridge
				brctl delif "${iface}" "${bport}"
			done
			# bring the bridge down
			brctl delbr "${iface}"
			;;
	esac

	# unset the bridge variable to be safe
	unset BRIDGE_INTERFACES
	# continue to setup generic networking
}

config_routes()
{
	local method="$1"
	local message

	# only add and del are allowed
	case ${method} in
		add) message="Adding" ;;
		del) message="Removing" ;;
		*)
			echo "config_routes: unsupported \$method '${method}'."
			exit 1
			;;
	esac

	# adds/delete user routes
	if [[ -f /etc/conf.d/net.routes ]]
	then
		( cat /etc/conf.d/net.routes; echo ) | # make sure there is a LF at the end
		while read route
		do
			case "${route}" in
				\#*|"") continue ;;
			esac
			# do not esacpe ${route} or it breaks!
			route "${method}" ${route}
		done
	fi
}

networking_start()
{
	local iface dns routes ALL_INTERFACES

	if [[ -z $1 ]]
	then
		ALL_INTERFACES=$(onboot_interface_list /etc/conf.d/net.*)
	else
		if [[ -e /etc/conf.d/net.$1 ]]
		then
			ALL_INTERFACES="$1"
		else
			echo "Interface $1 does not exist. Aborting"
			exit 1
		fi
	fi

	# get list of all devices
	for iface in ${ALL_INTERFACES}
	do
		# checkconfig
		source /etc/conf.d/net.${iface} || exit 1
		checkconfig

		# setup mac
		if [[ -n ${FORCE_MAC_TO} ]]
		then
			ifconfig "${iface}" hw ether "${FORCE_MAC_TO}"
		fi

		# setup bridges
		if [[ ${iface} = br[0-9]* ]]
		then
			config_bridge_devices "${iface}" add
		fi

		# now configure wireless_extensions
		[ -x /usr/sbin/iwconfig ] && setup_wireless_extensions "${iface}"

		# activate the interface
		ifconfig "${iface}" up

		# setup static or dhcp
		case ${NETWORKING} in
			dhcp|DHCP)
				${DHCP_PROG} ${DHCP_START} "${iface}" ;;
			static|STATIC)
				ifconfig "${iface}" "${IP}" netmask "${NETMASK}" broadcast "${BROADCAST}" ;;
		esac

		# setup def gw
		if [[ -n ${GATEWAY} ]]
		then
			route add default gateway "${GATEWAY}" metric 1 dev "${iface}"
			unset GATEWAY
		fi

		# setup /etc/resolv.conf
		# add given nameserver
		if [[ -n ${NAMESERVER} ]]
		then
			# whipe out the old one
			echo "# Generated by the magellan-initscripts for ${iface}" > /etc/resolv.conf
			# include head
			if [ -f /etc/resolv.conf.head ]
			then
				cat /etc/resolv.conf.head >> /etc/resolv.conf
			else
				echo "# /etc/resolv.conf.head can replace this line" >> /etc/resolv.conf
			fi

			for dns in ${NAMESERVER}
			do
				echo "nameserver ${dns}" >> /etc/resolv.conf
			done

			# include tail
			if [ -f /etc/resolv.conf.tail ]
			then
				cat /etc/resolv.conf.tail >> /etc/resolv.conf
			else
				echo "# /etc/resolv.conf.tail can replace this line" >> /etc/resolv.conf
			fi

			unset NAMESERVER
		fi
	done

	# setup user routes
	config_routes add
}

networking_stop()
{
	if [[ -z $1 ]]
	then
		ALL_INTERFACES=$(onboot_interface_list /etc/conf.d/net.*)
	else
		if [[ -e /etc/conf.d/net.$1 ]]
		then
			ALL_INTERFACES="$1"
		else
			echo "Interface $1 does not exist. Aborting"
			exit 1
		fi
	fi

	# get list of all devices
	for iface in ${ALL_INTERFACES}
	do
		source /etc/conf.d/net.${iface} || exit 1
		checkconfig

		if [[ -n ${GATEWAY} ]]
		then
			route del -net default
		fi

		ifconfig "${iface}" down

		# remove bridges
		if [[ ${iface} = br[0-9]* ]]
		then
			config_bridge_devices "${iface}" remove
		fi

		# shutdown dhcp-daemon
		if [[ ${NETWORKING} = dhcp ]] && [[ -n $(pidof $(basename ${DHCP_PROG})) ]]
		then
			if [[ -z ${DHCP_STOP} ]]
			then
				killall -15 ${DHCP_PROG}
				sleep 1
				# try harder
				if [[ -n $(pidof $(basename ${DHCP_PROG})) ]]
				then
					killall -9 ${DHCP_PROG}
				fi
			else
				${DHCP_PROG} ${DHCP_STOP} "${iface}"
			fi
		fi

		# shutdown wpa_supplicant daemon
		if [[ -n $(pidof wpa_supplicant) ]]
		then
			killall wpa_supplicant
		fi
	done

	# remove state dir
	if [ -d /var/run/wpa_supplicant ]
	then
		rm -rf /var/run/wpa_supplicant
	fi

	# delete user routes
	config_routes del
}

case $1 in
	start)
		networking_start $2 ;;

	stop) 
		networking_stop $2 ;;

	restart)
		$0 stop
		sleep 1
		$0 start
		;;

	*)
		echo "Usage: $0 {start|stop|restart} [interface]"
		exit 1
		;;
esac
1	#!/bin/bash
2	# $Id$
3	# Magellan network configuration script for systemd
4
5	# read values from files
6	read_value()
7	{
8	local var="$1"
9	local file="$2"
10	local value
11
12	# local all possible vars
13	# global
14	local ONBOOT
15	local NETWORKING
16
17	# static
18	local IP
19	local NETMASK
20	local BROADCAST
21	local NETWORKING
22	local FORCE_MAC_TO
23
24	# dhcp
25	local DHCP_PROG
26	local DHCP_START
27	local DHCP_STOP
28
29	# default gw
30	local GATEWAY
31	local GATEWAY_IF
32
33	# wireless extensions
34	local WIRELESS_AP
35	local WIRELESS_AUTH_MODE
36	local WIRELESS_BITRATE
37	local WIRELESS_CHANNEL
38	local WIRELESS_DEFAULT_KEY
39	local WIRELESS_ESSID
40	local WIRELESS_FREQUENCY
41	local WIRELESS_KEY
42	local WIRELESS_KEY_ASCII
43	local WIRELESS_KEY_0
44	local WIRELESS_KEY_1
45	local WIRELESS_KEY_2
46	local WIRELESS_KEY_3
47	local WIRELESS_KEY_LENGTH
48	local WIRELESS_MODE
49	local WIRELESS_NICK
50	local WIRELESS_NWID
51	local WIRELESS_POWER
52	local WIRELESS_WPA_DRIVER
53
54	local BRIDGE_INTERFACES
55	local BRIDGE_STP
56	local BRIDGE_AGEING_TIME
57	local BRIDGE_PRIORITY
58	local BRIDGE_FORWARD_DELAY
59	local BRIDGE_HELLO_TIME
60	local BRIDGE_MAX_MESSAGE_AGE
61	local BRIDGE_PATH_COST
62	local BRIDGE_PORT_PRIORITY
63
64	source ${file}
65	eval value=\$$(echo ${var})
66	echo "${value}"
67	}
68
69	checkconfig()
70	{
71	if [[ -z ${NETWORKING} ]]
72	then
73	echo "NETWORKING missing in net.${iface}, aborted"
74	exit 1
75	fi
76
77	case "${NETWORKING}" in
78	static)
79	if [[ -z ${IP} ]]
80	then
81	echo "IP missing in net.${iface}, aborted"
82	exit 1
83	fi
84
85	if [[ -z ${NETMASK} ]]
86	then
87	echo -n "NETMASK missing in net.${iface}, "
88	echo "using 255.255.255.0"
89	NETMASK=255.255.255.0
90	fi
91
92	if [[ -z ${BROADCAST} ]]
93	then
94	echo -n "BROADCAST missing in net.${iface}, "
95	echo "using default address"
96	fi
97	;;
98
99	dhcp)
100	if [[ -z ${DHCP_PROG} ]]
101	then
102	echo -n "DHCP_PROG missing in net.${iface},"
103	echo "using default programm /sbin/dhcpcd"
104	DHCP_PROG="/sbin/dhcpcd"
105	fi
106	[[ -z ${DHCP_START} ]] && DHCP_START="-t 10"
107	[[ -z ${DHCP_STOP} ]] && DHCP_STOP="-k"
108	;;
109
110	esac
111	}
112
113	# onboot_interface_list /path/to/files*
114	onboot_interface_list()
115	{
116	local file
117	local devices
118	local iface
119
120	# get list of all devices
121	for file in $@
122	do
123	iface="$(basename ${file} \| sed s/net.//)"
124
125	# exclude backup files and exclude net.routes and net.sample too
126	case "${iface}" in
127	*~) continue ;;
128	routes) continue ;;
129	sample) continue ;;
130	esac
131
132	if [[ $(read_value ONBOOT ${file}) = yes ]]
133	then
134	devices="${devices} ${iface}"
135	fi
136	done
137
138	echo "${devices}"
139	}
140
141	config_wireless_wep()
142	{
143	local iface="$1"
144
145	if [[ -z ${iface} ]]
146	then
147	echo "WEP: no \$iface given. Aborting setup."
148	return 1
149	fi
150
151	iwconfig "${iface}" enc on
152	[[ -n ${WIRELESS_KEY_LENGTH} ]] && iwconfig "${iface}" enc "${WIRELESS_KEY_LENGTH}"
153	[[ -n ${WIRELESS_KEY} ]] && iwconfig "${iface}" key "${WIRELESS_KEY}"
154	[[ -n ${WIRELESS_KEY_ASCII} ]] && iwconfig "${iface}" key s:"${WIRELESS_KEY_ASCII}"
155	}
156
157	config_wireless_wpa()
158	{
159	local iface="$1"
160
161	if [[ -z ${iface} ]]
162	then
163	echo "WPA: no \$iface given. Aborting setup."
164	return 1
165	fi
166
167	if [ ! -x /sbin/wpa_supplicant ]
168	then
169	echo "WPA: wpa_supplicant not installed. Aborting setup."
170	return 1
171	fi
172
173	# get default settings
174	[[ -f /etc/conf.d/wpa_supplicant ]] && source /etc/conf.d/wpa_supplicant
175
176	# check the configuration
177	[[ -z ${WIRELESS_WPA_CONFIG} ]] && WIRELESS_WPA_CONFIG=/etc/wpa_supplicant.auto
178	[[ -z ${WIRELESS_WPA_SKEL} ]] && WIRELESS_WPA_SKEL=/etc/conf.d/wpa_supplicant.skel
179
180	# use wext as default driver, do not abort here anymore
181	[[ -z ${WIRELESS_WPA_DRIVER} ]] && WIRELESS_WPA_DRIVER=wext
182
183	# write a config with the settings from net.${iface}
184	# only wpa-psk ! all other needs manual setup
185	if [[ ${WIRELESS_WPA_AUTOCONF} = true ]]
186	then
187	# write default cfg from skeleton
188	cat ${WIRELESS_WPA_SKEL} > ${WIRELESS_WPA_CONFIG}
189
190	local wpa_proto
191	case ${WIRELESS_AUTH_MODE} in
192	wpa) wpa_proto="WPA" ;;
193	wpa2) wpa_proto="WPA2" ;;
194	esac
195
196	# setup the network entry
197	sed -i -e "s:@WIRELESS_ESSID@:${WIRELESS_ESSID}:g" \
198	-e "s:@WIRELESS_KEY@:${WIRELESS_KEY_ASCII}:g" \
199	-e "s:@WIRELESS_AUTH_MODE@:${wpa_proto}:g" \
200	${WIRELESS_WPA_CONFIG}
201	fi
202
203	# remove old state dir
204	[ -d /var/run/wpa_supplicant ] && rm -rf /var/run/wpa_supplicant
205
206	# now run the wpa_supplicant dameon
207	wpa_supplicant -B \
208	-D"${WIRELESS_WPA_DRIVER}" \
209	-c"${WIRELESS_WPA_CONFIG}" \
210	-i"${iface}" \
211	${WIRELESS_WPA_OPTS}
212
213	# echo wait 5 seconds
214	echo " Waiting 5 seconds to retrieve authentification reply ... "
215	sleep 5
216	}
217
218	setup_wireless_extensions()
219	{
220	local iface="$1"
221
222	if [[ -z ${iface} ]]
223	then
224	echo "WIRELESS_EXTENSIONS: no \$iface given. Aborting setup."
225	return 1
226	fi
227
228	[[ -n ${WIRELESS_BITRATE} ]] && iwconfig "${iface}" rate "${WIRELESS_BITRATE}"
229	[[ -n ${WIRELESS_CHANNEL} ]] && iwconfig "${iface}" channel "${WIRELESS_CHANNEL}"
230	[[ -n ${WIRELESS_ESSID} ]] && iwconfig "${iface}" essid "${WIRELESS_ESSID}"
231	[[ -n ${WIRELESS_FREQUENCY} ]] && iwconfig "${iface}" freq "${WIRELESS_FREQUENCY}"
232	[[ -n ${WIRELESS_MODE} ]] && iwconfig "${iface}" mode "${WIRELESS_MODE}"
233	[[ -n ${WIRELESS_NICK} ]] && iwconfig "${iface}" nick "${WIRELESS_NICK}"
234
235	case "${WIRELESS_AUTH_MODE}" in
236	wpa\|wpa2) config_wireless_wpa "${iface}" ;;
237	wep\|on) config_wireless_wep "${iface}" ;;
238	off) iwconfig "${iface}" enc off ;;
239	esac
240	}
241
242	config_bridge_options()
243	{
244	local iface="$1"
245	local i
246	local port
247	local cost
248	local prio
249
250	# enable spanning-tree protocol
251	case ${BRIDGE_STP} in
252	on\|off) brctl stp "${iface}" "${BRIDGE_STP}" ;;
253	*) echo "BRIDGE: unkown value \$BRIDGE_STP='$BRIDGE_STP'."; return 1 ;;
254	esac
255
256	# configure ageing time
257	if [[ ! -z ${BRIDGE_AGEING_TIME} ]]
258	then
259	brctl setageing "${iface}" "${BRIDGE_AGEING_TIME}"
260	fi
261
262	# configure bridge priority
263	if [[ ! -z ${BRIDGE_PRIORITY} ]]
264	then
265	brctl setbridgeprio "${iface}" "${BRIDGE_PRIORITY}"
266	fi
267
268	# configure forward delay
269	if [[ ! -z ${BRIDGE_FORWARD_DELAY} ]]
270	then
271	brctl setfd "${iface}" "${BRIDGE_FORWARD_DELAY}"
272	fi
273
274	# configure hello time
275	if [[ ! -z ${BRIDGE_HELLO_TIME} ]]
276	then
277	brctl sethello "${iface}" "${BRIDGE_HELLO_TIME}"
278	fi
279
280	# configure maximal message age
281	if [[ ! -z ${BRIDGE_MAX_MESSAGE_AGE} ]]
282	then
283	brctl setmaxage "${iface}" "${BRIDGE_MAX_MESSAGE_AGE}"
284	fi
285
286	# configure path cost for every port
287	if [[ ! -z ${BRIDGE_PATH_COST} ]]
288	then
289	for i in ${BRIDGE_PATH_COST}
290	do
291	port="${i%=*}"
292	cost="${i#*=}"
293	[[ ! -z ${port} ]] && brctl pathcost "${iface}" "${port}" "${cost}"
294	done
295	fi
296
297	# configure port priority for every port
298	if [[ ! -z ${BRIDGE_PORT_PRIORITY} ]]
299	then
300	for i in ${BRIDGE_PORT_PRIORITY}
301	do
302	port="${i%=*}"
303	prio="${i#*=}"
304	[[ ! -z ${port} ]] && brctl setportprio "${iface}" "${port}" "${prio}"
305	done
306	fi
307	}
308
309	config_bridge_devices()
310	{
311	local iface="$1"
312	local method="$2"
313	local bport
314
315	if [[ -z ${iface} ]]
316	then
317	echo "BRIDGE: no \$iface given. Aborting setup."
318	return 1
319	fi
320
321	if [[ -z ${method} ]]
322	then
323	echo "BRIDGE: no \$method given. Aborting setup."
324	return 1
325	fi
326
327	# first check for brctl
328	if [[ -z $(which brctl) ]]
329	then
330	echo "brctl not found! Please install 'net-misc/bridge-utils'."
331	return 1
332	fi
333
334	# check the config
335	if [[ -z ${BRIDGE_INTERFACES} ]]
336	then
337	echo "BRIDGE: no \$BRIDGE_INTERFACES given. Aborting setup."
338	return 1
339	fi
340
341	case ${method} in
342	add)
343	# setup the bridge device
344	brctl addbr "${iface}"
345	for bport in ${BRIDGE_INTERFACES}
346	do
347	# enter promiscous mode
348	ifconfig "${bport}" 0.0.0.0 promisc
349	# now setup the bridge
350	brctl addif "${iface}" "${bport}"
351	done
352	# configure all other options
353	config_bridge_options "${iface}"
354	;;
355
356	remove)
357	for bport in ${BRIDGE_INTERFACE}
358	do
359	# bring the interface down
360	ifconfig "${bport}" down
361	# remove the interface from the bridge
362	brctl delif "${iface}" "${bport}"
363	done
364	# bring the bridge down
365	brctl delbr "${iface}"
366	;;
367	esac
368
369	# unset the bridge variable to be safe
370	unset BRIDGE_INTERFACES
371	# continue to setup generic networking
372	}
373
374	config_routes()
375	{
376	local method="$1"
377	local message
378
379	# only add and del are allowed
380	case ${method} in
381	add) message="Adding" ;;
382	del) message="Removing" ;;
383	*)
384	echo "config_routes: unsupported \$method '${method}'."
385	exit 1
386	;;
387	esac
388
389	# adds/delete user routes
390	if [[ -f /etc/conf.d/net.routes ]]
391	then
392	( cat /etc/conf.d/net.routes; echo ) \| # make sure there is a LF at the end
393	while read route
394	do
395	case "${route}" in
396	\#*\|"") continue ;;
397	esac
398	# do not esacpe ${route} or it breaks!
399	route "${method}" ${route}
400	done
401	fi
402	}
403
404	networking_start()
405	{
406	local iface dns routes ALL_INTERFACES
407
408	if [[ -z $1 ]]
409	then
410	ALL_INTERFACES=$(onboot_interface_list /etc/conf.d/net.*)
411	else
412	if [[ -e /etc/conf.d/net.$1 ]]
413	then
414	ALL_INTERFACES="$1"
415	else
416	echo "Interface $1 does not exist. Aborting"
417	exit 1
418	fi
419	fi
420
421	# get list of all devices
422	for iface in ${ALL_INTERFACES}
423	do
424	# checkconfig
425	source /etc/conf.d/net.${iface} \|\| exit 1
426	checkconfig
427
428	# setup mac
429	if [[ -n ${FORCE_MAC_TO} ]]
430	then
431	ifconfig "${iface}" hw ether "${FORCE_MAC_TO}"
432	fi
433
434	# setup bridges
435	if [[ ${iface} = br[0-9]* ]]
436	then
437	config_bridge_devices "${iface}" add
438	fi
439
440	# now configure wireless_extensions
441	[ -x /usr/sbin/iwconfig ] && setup_wireless_extensions "${iface}"
442
443	# activate the interface
444	ifconfig "${iface}" up
445
446	# setup static or dhcp
447	case ${NETWORKING} in
448	dhcp\|DHCP)
449	${DHCP_PROG} ${DHCP_START} "${iface}" ;;
450	static\|STATIC)
451	ifconfig "${iface}" "${IP}" netmask "${NETMASK}" broadcast "${BROADCAST}" ;;
452	esac
453
454	# setup def gw
455	if [[ -n ${GATEWAY} ]]
456	then
457	route add default gateway "${GATEWAY}" metric 1 dev "${iface}"
458	unset GATEWAY
459	fi
460
461	# setup /etc/resolv.conf
462	# add given nameserver
463	if [[ -n ${NAMESERVER} ]]
464	then
465	# whipe out the old one
466	echo "# Generated by the magellan-initscripts for ${iface}" > /etc/resolv.conf
467	# include head
468	if [ -f /etc/resolv.conf.head ]
469	then
470	cat /etc/resolv.conf.head >> /etc/resolv.conf
471	else
472	echo "# /etc/resolv.conf.head can replace this line" >> /etc/resolv.conf
473	fi
474
475	for dns in ${NAMESERVER}
476	do
477	echo "nameserver ${dns}" >> /etc/resolv.conf
478	done
479
480	# include tail
481	if [ -f /etc/resolv.conf.tail ]
482	then
483	cat /etc/resolv.conf.tail >> /etc/resolv.conf
484	else
485	echo "# /etc/resolv.conf.tail can replace this line" >> /etc/resolv.conf
486	fi
487
488	unset NAMESERVER
489	fi
490	done
491
492	# setup user routes
493	config_routes add
494	}
495
496	networking_stop()
497	{
498	if [[ -z $1 ]]
499	then
500	ALL_INTERFACES=$(onboot_interface_list /etc/conf.d/net.*)
501	else
502	if [[ -e /etc/conf.d/net.$1 ]]
503	then
504	ALL_INTERFACES="$1"
505	else
506	echo "Interface $1 does not exist. Aborting"
507	exit 1
508	fi
509	fi
510
511	# get list of all devices
512	for iface in ${ALL_INTERFACES}
513	do
514	source /etc/conf.d/net.${iface} \|\| exit 1
515	checkconfig
516
517	if [[ -n ${GATEWAY} ]]
518	then
519	route del -net default
520	fi
521
522	ifconfig "${iface}" down
523
524	# remove bridges
525	if [[ ${iface} = br[0-9]* ]]
526	then
527	config_bridge_devices "${iface}" remove
528	fi
529
530	# shutdown dhcp-daemon
531	if [[ ${NETWORKING} = dhcp ]] && [[ -n $(pidof $(basename ${DHCP_PROG})) ]]
532	then
533	if [[ -z ${DHCP_STOP} ]]
534	then
535	killall -15 ${DHCP_PROG}
536	sleep 1
537	# try harder
538	if [[ -n $(pidof $(basename ${DHCP_PROG})) ]]
539	then
540	killall -9 ${DHCP_PROG}
541	fi
542	else
543	${DHCP_PROG} ${DHCP_STOP} "${iface}"
544	fi
545	fi
546
547	# shutdown wpa_supplicant daemon
548	if [[ -n $(pidof wpa_supplicant) ]]
549	then
550	killall wpa_supplicant
551	fi
552	done
553
554	# remove state dir
555	if [ -d /var/run/wpa_supplicant ]
556	then
557	rm -rf /var/run/wpa_supplicant
558	fi
559
560	# delete user routes
561	config_routes del
562	}
563
564	case $1 in
565	start)
566	networking_start $2 ;;
567
568	stop)
569	networking_stop $2 ;;
570
571	restart)
572	$0 stop
573	sleep 1
574	$0 start
575	;;
576
577	*)
578	echo "Usage: $0 {start\|stop\|restart} [interface]"
579	exit 1
580	;;
581	esac