units/scripts/network.sh

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

# get default settings
source /etc/conf.d/network

# 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 ${DEFAULT_NETMASK}"
			NETMASK="${DEFAULT_NETMASK}"
		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 ${DEFAULT_DHCP_PROG}"
			DHCP_PROG="${DEFAULT_DHCP_PROG}"
		fi
		[[ -z ${DHCP_START} ]] && DHCP_START="${DEFAULT_DHCP_START}"
		[[ -z ${DHCP_STOP} ]] && DHCP_STOP="${DEFAULT_DHCP_STOP}"
		;;

	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 $(type -P 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/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 /run/wpa_supplicant ] && rm -rf /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 $(type -P 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 $(type -P iwconfig) ] && setup_wireless_extensions "${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 /run/wpa_supplicant ]
	then
		rm -rf /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	# get default settings
6	source /etc/conf.d/network
7
8	# read values from files
9	read_value()
10	{
11	local var="$1"
12	local file="$2"
13	local value
14
15	# local all possible vars
16	# global
17	local ONBOOT
18	local NETWORKING
19
20	# static
21	local IP
22	local NETMASK
23	local BROADCAST
24	local NETWORKING
25	local FORCE_MAC_TO
26
27	# dhcp
28	local DHCP_PROG
29	local DHCP_START
30	local DHCP_STOP
31
32	# default gw
33	local GATEWAY
34	local GATEWAY_IF
35
36	# wireless extensions
37	local WIRELESS_AP
38	local WIRELESS_AUTH_MODE
39	local WIRELESS_BITRATE
40	local WIRELESS_CHANNEL
41	local WIRELESS_DEFAULT_KEY
42	local WIRELESS_ESSID
43	local WIRELESS_FREQUENCY
44	local WIRELESS_KEY
45	local WIRELESS_KEY_ASCII
46	local WIRELESS_KEY_0
47	local WIRELESS_KEY_1
48	local WIRELESS_KEY_2
49	local WIRELESS_KEY_3
50	local WIRELESS_KEY_LENGTH
51	local WIRELESS_MODE
52	local WIRELESS_NICK
53	local WIRELESS_NWID
54	local WIRELESS_POWER
55	local WIRELESS_WPA_DRIVER
56
57	local BRIDGE_INTERFACES
58	local BRIDGE_STP
59	local BRIDGE_AGEING_TIME
60	local BRIDGE_PRIORITY
61	local BRIDGE_FORWARD_DELAY
62	local BRIDGE_HELLO_TIME
63	local BRIDGE_MAX_MESSAGE_AGE
64	local BRIDGE_PATH_COST
65	local BRIDGE_PORT_PRIORITY
66
67	source ${file}
68	eval value=\$$(echo ${var})
69	echo "${value}"
70	}
71
72	checkconfig()
73	{
74	if [[ -z ${NETWORKING} ]]
75	then
76	echo "NETWORKING missing in net.${iface}, aborted"
77	exit 1
78	fi
79
80	case "${NETWORKING}" in
81	static)
82	if [[ -z ${IP} ]]
83	then
84	echo "IP missing in net.${iface}, aborted"
85	exit 1
86	fi
87
88	if [[ -z ${NETMASK} ]]
89	then
90	echo -n "NETMASK missing in net.${iface}, "
91	echo "using ${DEFAULT_NETMASK}"
92	NETMASK="${DEFAULT_NETMASK}"
93	fi
94
95	if [[ -z ${BROADCAST} ]]
96	then
97	echo -n "BROADCAST missing in net.${iface}, "
98	echo "using default address"
99	fi
100	;;
101
102	dhcp)
103	if [[ -z ${DHCP_PROG} ]]
104	then
105	echo -n "DHCP_PROG missing in net.${iface},"
106	echo "using default programm ${DEFAULT_DHCP_PROG}"
107	DHCP_PROG="${DEFAULT_DHCP_PROG}"
108	fi
109	[[ -z ${DHCP_START} ]] && DHCP_START="${DEFAULT_DHCP_START}"
110	[[ -z ${DHCP_STOP} ]] && DHCP_STOP="${DEFAULT_DHCP_STOP}"
111	;;
112
113	esac
114	}
115
116	# onboot_interface_list /path/to/files*
117	onboot_interface_list()
118	{
119	local file
120	local devices
121	local iface
122
123	# get list of all devices
124	for file in $@
125	do
126	iface="$(basename ${file} \| sed s/net.//)"
127
128	# exclude backup files and exclude net.routes and net.sample too
129	case "${iface}" in
130	*~) continue ;;
131	routes) continue ;;
132	sample) continue ;;
133	esac
134
135	if [[ $(read_value ONBOOT ${file}) = yes ]]
136	then
137	devices="${devices} ${iface}"
138	fi
139	done
140
141	echo "${devices}"
142	}
143
144	config_wireless_wep()
145	{
146	local iface="$1"
147
148	if [[ -z ${iface} ]]
149	then
150	echo "WEP: no \$iface given. Aborting setup."
151	return 1
152	fi
153
154	iwconfig "${iface}" enc on
155	[[ -n ${WIRELESS_KEY_LENGTH} ]] && iwconfig "${iface}" enc "${WIRELESS_KEY_LENGTH}"
156	[[ -n ${WIRELESS_KEY} ]] && iwconfig "${iface}" key "${WIRELESS_KEY}"
157	[[ -n ${WIRELESS_KEY_ASCII} ]] && iwconfig "${iface}" key s:"${WIRELESS_KEY_ASCII}"
158	}
159
160	config_wireless_wpa()
161	{
162	local iface="$1"
163
164	if [[ -z ${iface} ]]
165	then
166	echo "WPA: no \$iface given. Aborting setup."
167	return 1
168	fi
169
170	if [ ! -x $(type -P wpa_supplicant) ]
171	then
172	echo "WPA: wpa_supplicant not installed. Aborting setup."
173	return 1
174	fi
175
176	# get default settings
177	[[ -f /etc/conf.d/wpa_supplicant ]] && source /etc/conf.d/wpa_supplicant
178
179	# check the configuration
180	[[ -z ${WIRELESS_WPA_CONFIG} ]] && WIRELESS_WPA_CONFIG=/etc/wpa_supplicant/wpa_supplicant.auto
181	[[ -z ${WIRELESS_WPA_SKEL} ]] && WIRELESS_WPA_SKEL=/etc/conf.d/wpa_supplicant.skel
182
183	# use wext as default driver, do not abort here anymore
184	[[ -z ${WIRELESS_WPA_DRIVER} ]] && WIRELESS_WPA_DRIVER=wext
185
186	# write a config with the settings from net.${iface}
187	# only wpa-psk ! all other needs manual setup
188	if [[ ${WIRELESS_WPA_AUTOCONF} = true ]]
189	then
190	# write default cfg from skeleton
191	cat ${WIRELESS_WPA_SKEL} > ${WIRELESS_WPA_CONFIG}
192
193	local wpa_proto
194	case ${WIRELESS_AUTH_MODE} in
195	wpa) wpa_proto="WPA" ;;
196	wpa2) wpa_proto="WPA2" ;;
197	esac
198
199	# setup the network entry
200	sed -i -e "s:@WIRELESS_ESSID@:${WIRELESS_ESSID}:g" \
201	-e "s:@WIRELESS_KEY@:${WIRELESS_KEY_ASCII}:g" \
202	-e "s:@WIRELESS_AUTH_MODE@:${wpa_proto}:g" \
203	${WIRELESS_WPA_CONFIG}
204	fi
205
206	# remove old state dir
207	[ -d /run/wpa_supplicant ] && rm -rf /run/wpa_supplicant
208
209	# now run the wpa_supplicant dameon
210	wpa_supplicant -B \
211	-D"${WIRELESS_WPA_DRIVER}" \
212	-c"${WIRELESS_WPA_CONFIG}" \
213	-i"${iface}" \
214	${WIRELESS_WPA_OPTS}
215
216	# echo wait 5 seconds
217	echo " Waiting 5 seconds to retrieve authentification reply ... "
218	sleep 5
219	}
220
221	setup_wireless_extensions()
222	{
223	local iface="$1"
224
225	if [[ -z ${iface} ]]
226	then
227	echo "WIRELESS_EXTENSIONS: no \$iface given. Aborting setup."
228	return 1
229	fi
230
231	[[ -n ${WIRELESS_BITRATE} ]] && iwconfig "${iface}" rate "${WIRELESS_BITRATE}"
232	[[ -n ${WIRELESS_CHANNEL} ]] && iwconfig "${iface}" channel "${WIRELESS_CHANNEL}"
233	[[ -n ${WIRELESS_ESSID} ]] && iwconfig "${iface}" essid "${WIRELESS_ESSID}"
234	[[ -n ${WIRELESS_FREQUENCY} ]] && iwconfig "${iface}" freq "${WIRELESS_FREQUENCY}"
235	[[ -n ${WIRELESS_MODE} ]] && iwconfig "${iface}" mode "${WIRELESS_MODE}"
236	[[ -n ${WIRELESS_NICK} ]] && iwconfig "${iface}" nick "${WIRELESS_NICK}"
237
238	case "${WIRELESS_AUTH_MODE}" in
239	wpa\|wpa2) config_wireless_wpa "${iface}" ;;
240	wep\|on) config_wireless_wep "${iface}" ;;
241	off) iwconfig "${iface}" enc off ;;
242	esac
243	}
244
245	config_bridge_options()
246	{
247	local iface="$1"
248	local i
249	local port
250	local cost
251	local prio
252
253	# enable spanning-tree protocol
254	case ${BRIDGE_STP} in
255	on\|off) brctl stp "${iface}" "${BRIDGE_STP}" ;;
256	*) echo "BRIDGE: unkown value \$BRIDGE_STP='$BRIDGE_STP'."; return 1 ;;
257	esac
258
259	# configure ageing time
260	if [[ ! -z ${BRIDGE_AGEING_TIME} ]]
261	then
262	brctl setageing "${iface}" "${BRIDGE_AGEING_TIME}"
263	fi
264
265	# configure bridge priority
266	if [[ ! -z ${BRIDGE_PRIORITY} ]]
267	then
268	brctl setbridgeprio "${iface}" "${BRIDGE_PRIORITY}"
269	fi
270
271	# configure forward delay
272	if [[ ! -z ${BRIDGE_FORWARD_DELAY} ]]
273	then
274	brctl setfd "${iface}" "${BRIDGE_FORWARD_DELAY}"
275	fi
276
277	# configure hello time
278	if [[ ! -z ${BRIDGE_HELLO_TIME} ]]
279	then
280	brctl sethello "${iface}" "${BRIDGE_HELLO_TIME}"
281	fi
282
283	# configure maximal message age
284	if [[ ! -z ${BRIDGE_MAX_MESSAGE_AGE} ]]
285	then
286	brctl setmaxage "${iface}" "${BRIDGE_MAX_MESSAGE_AGE}"
287	fi
288
289	# configure path cost for every port
290	if [[ ! -z ${BRIDGE_PATH_COST} ]]
291	then
292	for i in ${BRIDGE_PATH_COST}
293	do
294	port="${i%=*}"
295	cost="${i#*=}"
296	[[ ! -z ${port} ]] && brctl pathcost "${iface}" "${port}" "${cost}"
297	done
298	fi
299
300	# configure port priority for every port
301	if [[ ! -z ${BRIDGE_PORT_PRIORITY} ]]
302	then
303	for i in ${BRIDGE_PORT_PRIORITY}
304	do
305	port="${i%=*}"
306	prio="${i#*=}"
307	[[ ! -z ${port} ]] && brctl setportprio "${iface}" "${port}" "${prio}"
308	done
309	fi
310	}
311
312	config_bridge_devices()
313	{
314	local iface="$1"
315	local method="$2"
316	local bport
317
318	if [[ -z ${iface} ]]
319	then
320	echo "BRIDGE: no \$iface given. Aborting setup."
321	return 1
322	fi
323
324	if [[ -z ${method} ]]
325	then
326	echo "BRIDGE: no \$method given. Aborting setup."
327	return 1
328	fi
329
330	# first check for brctl
331	if [[ -z $(type -P brctl) ]]
332	then
333	echo "brctl not found! Please install 'net-misc/bridge-utils'."
334	return 1
335	fi
336
337	# check the config
338	if [[ -z ${BRIDGE_INTERFACES} ]]
339	then
340	echo "BRIDGE: no \$BRIDGE_INTERFACES given. Aborting setup."
341	return 1
342	fi
343
344	case ${method} in
345	add)
346	# setup the bridge device
347	brctl addbr "${iface}"
348	for bport in ${BRIDGE_INTERFACES}
349	do
350	# enter promiscous mode
351	ifconfig "${bport}" 0.0.0.0 promisc
352	# now setup the bridge
353	brctl addif "${iface}" "${bport}"
354	done
355	# configure all other options
356	config_bridge_options "${iface}"
357	;;
358
359	remove)
360	for bport in ${BRIDGE_INTERFACE}
361	do
362	# bring the interface down
363	ifconfig "${bport}" down
364	# remove the interface from the bridge
365	brctl delif "${iface}" "${bport}"
366	done
367	# bring the bridge down
368	brctl delbr "${iface}"
369	;;
370	esac
371
372	# unset the bridge variable to be safe
373	unset BRIDGE_INTERFACES
374	# continue to setup generic networking
375	}
376
377	config_routes()
378	{
379	local method="$1"
380	local message
381
382	# only add and del are allowed
383	case ${method} in
384	add) message="Adding" ;;
385	del) message="Removing" ;;
386	*)
387	echo "config_routes: unsupported \$method '${method}'."
388	exit 1
389	;;
390	esac
391
392	# adds/delete user routes
393	if [[ -f /etc/conf.d/net.routes ]]
394	then
395	( cat /etc/conf.d/net.routes; echo ) \| # make sure there is a LF at the end
396	while read route
397	do
398	case "${route}" in
399	\#*\|"") continue ;;
400	esac
401	# do not esacpe ${route} or it breaks!
402	route "${method}" ${route}
403	done
404	fi
405	}
406
407	networking_start()
408	{
409	local iface dns routes ALL_INTERFACES
410
411	if [[ -z $1 ]]
412	then
413	ALL_INTERFACES=$(onboot_interface_list /etc/conf.d/net.*)
414	else
415	if [[ -e /etc/conf.d/net.$1 ]]
416	then
417	ALL_INTERFACES="$1"
418	else
419	echo "Interface $1 does not exist. Aborting"
420	exit 1
421	fi
422	fi
423
424	# get list of all devices
425	for iface in ${ALL_INTERFACES}
426	do
427	# checkconfig
428	source /etc/conf.d/net.${iface} \|\| exit 1
429	checkconfig
430
431	# setup mac
432	if [[ -n ${FORCE_MAC_TO} ]]
433	then
434	ifconfig "${iface}" hw ether "${FORCE_MAC_TO}"
435	fi
436
437	# setup bridges
438	if [[ ${iface} = br[0-9]* ]]
439	then
440	config_bridge_devices "${iface}" add
441	fi
442
443	# now configure wireless_extensions
444	[ -x $(type -P iwconfig) ] && setup_wireless_extensions "${iface}"
445
446	# activate the interface
447	ifconfig "${iface}" up
448
449	# setup static or dhcp
450	case ${NETWORKING} in
451	dhcp\|DHCP)
452	${DHCP_PROG} ${DHCP_START} "${iface}" ;;
453	static\|STATIC)
454	ifconfig "${iface}" "${IP}" netmask "${NETMASK}" broadcast "${BROADCAST}" ;;
455	esac
456
457	# setup def gw
458	if [[ -n ${GATEWAY} ]]
459	then
460	route add default gateway "${GATEWAY}" metric 1 dev "${iface}"
461	unset GATEWAY
462	fi
463
464	# setup /etc/resolv.conf
465	# add given nameserver
466	if [[ -n ${NAMESERVER} ]]
467	then
468	# whipe out the old one
469	echo "# Generated by the magellan-initscripts for ${iface}" > /etc/resolv.conf
470	# include head
471	if [ -f /etc/resolv.conf.head ]
472	then
473	cat /etc/resolv.conf.head >> /etc/resolv.conf
474	else
475	echo "# /etc/resolv.conf.head can replace this line" >> /etc/resolv.conf
476	fi
477
478	for dns in ${NAMESERVER}
479	do
480	echo "nameserver ${dns}" >> /etc/resolv.conf
481	done
482
483	# include tail
484	if [ -f /etc/resolv.conf.tail ]
485	then
486	cat /etc/resolv.conf.tail >> /etc/resolv.conf
487	else
488	echo "# /etc/resolv.conf.tail can replace this line" >> /etc/resolv.conf
489	fi
490
491	unset NAMESERVER
492	fi
493	done
494
495	# setup user routes
496	config_routes add
497	}
498
499	networking_stop()
500	{
501	if [[ -z $1 ]]
502	then
503	ALL_INTERFACES=$(onboot_interface_list /etc/conf.d/net.*)
504	else
505	if [[ -e /etc/conf.d/net.$1 ]]
506	then
507	ALL_INTERFACES="$1"
508	else
509	echo "Interface $1 does not exist. Aborting"
510	exit 1
511	fi
512	fi
513
514	# get list of all devices
515	for iface in ${ALL_INTERFACES}
516	do
517	source /etc/conf.d/net.${iface} \|\| exit 1
518	checkconfig
519
520	if [[ -n ${GATEWAY} ]]
521	then
522	route del -net default
523	fi
524
525	ifconfig "${iface}" down
526
527	# remove bridges
528	if [[ ${iface} = br[0-9]* ]]
529	then
530	config_bridge_devices "${iface}" remove
531	fi
532
533	# shutdown dhcp-daemon
534	if [[ ${NETWORKING} = dhcp ]] && [[ -n $(pidof $(basename ${DHCP_PROG})) ]]
535	then
536	if [[ -z ${DHCP_STOP} ]]
537	then
538	killall -15 ${DHCP_PROG}
539	sleep 1
540	# try harder
541	if [[ -n $(pidof $(basename ${DHCP_PROG})) ]]
542	then
543	killall -9 ${DHCP_PROG}
544	fi
545	else
546	${DHCP_PROG} ${DHCP_STOP} "${iface}"
547	fi
548	fi
549
550	# shutdown wpa_supplicant daemon
551	if [[ -n $(pidof wpa_supplicant) ]]
552	then
553	killall wpa_supplicant
554	fi
555	done
556
557	# remove state dir
558	if [ -d /run/wpa_supplicant ]
559	then
560	rm -rf /run/wpa_supplicant
561	fi
562
563	# delete user routes
564	config_routes del
565	}
566
567	case $1 in
568	start)
569	networking_start $2 ;;
570
571	stop)
572	networking_stop $2 ;;
573
574	restart)
575	$0 stop
576	sleep 1
577	$0 start
578	;;
579
580	*)
581	echo "Usage: $0 {start\|stop\|restart} [interface]"
582	exit 1
583	;;
584	esac