units/scripts/network.sh

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

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

iface_wait_online()
{
	local timeout="$1"
	local iface="$2"

	(( timeout *= 10 ))

	while [ ! -e /sys/class/net/${iface} ]
	do
		(( timeout-- > 0 )) || return 1
		echo "waiting 0.1 seconds for device '${iface}' - timeout->'${timeout}'"
		sleep 0.1
	done

	return 0
}

# 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

		# wait until the device is created
		iface_wait_online 5 "${iface}" || { echo "device '${iface}' does not exist"; continue; }

		# 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	iface_wait_online()
9	{
10	local timeout="$1"
11	local iface="$2"
12
13	(( timeout *= 10 ))
14
15	while [ ! -e /sys/class/net/${iface} ]
16	do
17	(( timeout-- > 0 )) \|\| return 1
18	echo "waiting 0.1 seconds for device '${iface}' - timeout->'${timeout}'"
19	sleep 0.1
20	done
21
22	return 0
23	}
24
25	# read values from files
26	read_value()
27	{
28	local var="$1"
29	local file="$2"
30	local value
31
32	# local all possible vars
33	# global
34	local ONBOOT
35	local NETWORKING
36
37	# static
38	local IP
39	local NETMASK
40	local BROADCAST
41	local NETWORKING
42	local FORCE_MAC_TO
43
44	# dhcp
45	local DHCP_PROG
46	local DHCP_START
47	local DHCP_STOP
48
49	# default gw
50	local GATEWAY
51	local GATEWAY_IF
52
53	# wireless extensions
54	local WIRELESS_AP
55	local WIRELESS_AUTH_MODE
56	local WIRELESS_BITRATE
57	local WIRELESS_CHANNEL
58	local WIRELESS_DEFAULT_KEY
59	local WIRELESS_ESSID
60	local WIRELESS_FREQUENCY
61	local WIRELESS_KEY
62	local WIRELESS_KEY_ASCII
63	local WIRELESS_KEY_0
64	local WIRELESS_KEY_1
65	local WIRELESS_KEY_2
66	local WIRELESS_KEY_3
67	local WIRELESS_KEY_LENGTH
68	local WIRELESS_MODE
69	local WIRELESS_NICK
70	local WIRELESS_NWID
71	local WIRELESS_POWER
72	local WIRELESS_WPA_DRIVER
73
74	local BRIDGE_INTERFACES
75	local BRIDGE_STP
76	local BRIDGE_AGEING_TIME
77	local BRIDGE_PRIORITY
78	local BRIDGE_FORWARD_DELAY
79	local BRIDGE_HELLO_TIME
80	local BRIDGE_MAX_MESSAGE_AGE
81	local BRIDGE_PATH_COST
82	local BRIDGE_PORT_PRIORITY
83
84	source ${file}
85	eval value=\$$(echo ${var})
86	echo "${value}"
87	}
88
89	checkconfig()
90	{
91	if [[ -z ${NETWORKING} ]]
92	then
93	echo "NETWORKING missing in net.${iface}, aborted"
94	exit 1
95	fi
96
97	case "${NETWORKING}" in
98	static)
99	if [[ -z ${IP} ]]
100	then
101	echo "IP missing in net.${iface}, aborted"
102	exit 1
103	fi
104
105	if [[ -z ${NETMASK} ]]
106	then
107	echo -n "NETMASK missing in net.${iface}, "
108	echo "using ${DEFAULT_NETMASK}"
109	NETMASK="${DEFAULT_NETMASK}"
110	fi
111
112	if [[ -z ${BROADCAST} ]]
113	then
114	echo -n "BROADCAST missing in net.${iface}, "
115	echo "using default address"
116	fi
117	;;
118
119	dhcp)
120	if [[ -z ${DHCP_PROG} ]]
121	then
122	echo -n "DHCP_PROG missing in net.${iface},"
123	echo "using default programm ${DEFAULT_DHCP_PROG}"
124	DHCP_PROG="${DEFAULT_DHCP_PROG}"
125	fi
126	[[ -z ${DHCP_START} ]] && DHCP_START="${DEFAULT_DHCP_START}"
127	[[ -z ${DHCP_STOP} ]] && DHCP_STOP="${DEFAULT_DHCP_STOP}"
128	;;
129
130	esac
131	}
132
133	# onboot_interface_list /path/to/files*
134	onboot_interface_list()
135	{
136	local file
137	local devices
138	local iface
139
140	# get list of all devices
141	for file in $@
142	do
143	iface="$(basename ${file} \| sed s/net.//)"
144
145	# exclude backup files and exclude net.routes and net.sample too
146	case "${iface}" in
147	*~) continue ;;
148	routes) continue ;;
149	sample) continue ;;
150	esac
151
152	if [[ $(read_value ONBOOT ${file}) = yes ]]
153	then
154	devices="${devices} ${iface}"
155	fi
156	done
157
158	echo "${devices}"
159	}
160
161	config_wireless_wep()
162	{
163	local iface="$1"
164
165	if [[ -z ${iface} ]]
166	then
167	echo "WEP: no \$iface given. Aborting setup."
168	return 1
169	fi
170
171	iwconfig "${iface}" enc on
172	[[ -n ${WIRELESS_KEY_LENGTH} ]] && iwconfig "${iface}" enc "${WIRELESS_KEY_LENGTH}"
173	[[ -n ${WIRELESS_KEY} ]] && iwconfig "${iface}" key "${WIRELESS_KEY}"
174	[[ -n ${WIRELESS_KEY_ASCII} ]] && iwconfig "${iface}" key s:"${WIRELESS_KEY_ASCII}"
175	}
176
177	config_wireless_wpa()
178	{
179	local iface="$1"
180
181	if [[ -z ${iface} ]]
182	then
183	echo "WPA: no \$iface given. Aborting setup."
184	return 1
185	fi
186
187	if [ ! -x $(type -P wpa_supplicant) ]
188	then
189	echo "WPA: wpa_supplicant not installed. Aborting setup."
190	return 1
191	fi
192
193	# get default settings
194	[[ -f /etc/conf.d/wpa_supplicant ]] && source /etc/conf.d/wpa_supplicant
195
196	# check the configuration
197	[[ -z ${WIRELESS_WPA_CONFIG} ]] && WIRELESS_WPA_CONFIG=/etc/wpa_supplicant/wpa_supplicant.auto
198	[[ -z ${WIRELESS_WPA_SKEL} ]] && WIRELESS_WPA_SKEL=/etc/conf.d/wpa_supplicant.skel
199
200	# use wext as default driver, do not abort here anymore
201	[[ -z ${WIRELESS_WPA_DRIVER} ]] && WIRELESS_WPA_DRIVER=wext
202
203	# write a config with the settings from net.${iface}
204	# only wpa-psk ! all other needs manual setup
205	if [[ ${WIRELESS_WPA_AUTOCONF} = true ]]
206	then
207	# write default cfg from skeleton
208	cat ${WIRELESS_WPA_SKEL} > ${WIRELESS_WPA_CONFIG}
209
210	local wpa_proto
211	case ${WIRELESS_AUTH_MODE} in
212	wpa) wpa_proto="WPA" ;;
213	wpa2) wpa_proto="WPA2" ;;
214	esac
215
216	# setup the network entry
217	sed -i -e "s:@WIRELESS_ESSID@:${WIRELESS_ESSID}:g" \
218	-e "s:@WIRELESS_KEY@:${WIRELESS_KEY_ASCII}:g" \
219	-e "s:@WIRELESS_AUTH_MODE@:${wpa_proto}:g" \
220	${WIRELESS_WPA_CONFIG}
221	fi
222
223	# remove old state dir
224	[ -d /run/wpa_supplicant ] && rm -rf /run/wpa_supplicant
225
226	# now run the wpa_supplicant dameon
227	wpa_supplicant -B \
228	-D"${WIRELESS_WPA_DRIVER}" \
229	-c"${WIRELESS_WPA_CONFIG}" \
230	-i"${iface}" \
231	${WIRELESS_WPA_OPTS}
232
233	# echo wait 5 seconds
234	echo " Waiting 5 seconds to retrieve authentification reply ... "
235	sleep 5
236	}
237
238	setup_wireless_extensions()
239	{
240	local iface="$1"
241
242	if [[ -z ${iface} ]]
243	then
244	echo "WIRELESS_EXTENSIONS: no \$iface given. Aborting setup."
245	return 1
246	fi
247
248	[[ -n ${WIRELESS_BITRATE} ]] && iwconfig "${iface}" rate "${WIRELESS_BITRATE}"
249	[[ -n ${WIRELESS_CHANNEL} ]] && iwconfig "${iface}" channel "${WIRELESS_CHANNEL}"
250	[[ -n ${WIRELESS_ESSID} ]] && iwconfig "${iface}" essid "${WIRELESS_ESSID}"
251	[[ -n ${WIRELESS_FREQUENCY} ]] && iwconfig "${iface}" freq "${WIRELESS_FREQUENCY}"
252	[[ -n ${WIRELESS_MODE} ]] && iwconfig "${iface}" mode "${WIRELESS_MODE}"
253	[[ -n ${WIRELESS_NICK} ]] && iwconfig "${iface}" nick "${WIRELESS_NICK}"
254
255	case "${WIRELESS_AUTH_MODE}" in
256	wpa\|wpa2) config_wireless_wpa "${iface}" ;;
257	wep\|on) config_wireless_wep "${iface}" ;;
258	off) iwconfig "${iface}" enc off ;;
259	esac
260	}
261
262	config_bridge_options()
263	{
264	local iface="$1"
265	local i
266	local port
267	local cost
268	local prio
269
270	# enable spanning-tree protocol
271	case ${BRIDGE_STP} in
272	on\|off) brctl stp "${iface}" "${BRIDGE_STP}" ;;
273	*) echo "BRIDGE: unkown value \$BRIDGE_STP='$BRIDGE_STP'."; return 1 ;;
274	esac
275
276	# configure ageing time
277	if [[ ! -z ${BRIDGE_AGEING_TIME} ]]
278	then
279	brctl setageing "${iface}" "${BRIDGE_AGEING_TIME}"
280	fi
281
282	# configure bridge priority
283	if [[ ! -z ${BRIDGE_PRIORITY} ]]
284	then
285	brctl setbridgeprio "${iface}" "${BRIDGE_PRIORITY}"
286	fi
287
288	# configure forward delay
289	if [[ ! -z ${BRIDGE_FORWARD_DELAY} ]]
290	then
291	brctl setfd "${iface}" "${BRIDGE_FORWARD_DELAY}"
292	fi
293
294	# configure hello time
295	if [[ ! -z ${BRIDGE_HELLO_TIME} ]]
296	then
297	brctl sethello "${iface}" "${BRIDGE_HELLO_TIME}"
298	fi
299
300	# configure maximal message age
301	if [[ ! -z ${BRIDGE_MAX_MESSAGE_AGE} ]]
302	then
303	brctl setmaxage "${iface}" "${BRIDGE_MAX_MESSAGE_AGE}"
304	fi
305
306	# configure path cost for every port
307	if [[ ! -z ${BRIDGE_PATH_COST} ]]
308	then
309	for i in ${BRIDGE_PATH_COST}
310	do
311	port="${i%=*}"
312	cost="${i#*=}"
313	[[ ! -z ${port} ]] && brctl pathcost "${iface}" "${port}" "${cost}"
314	done
315	fi
316
317	# configure port priority for every port
318	if [[ ! -z ${BRIDGE_PORT_PRIORITY} ]]
319	then
320	for i in ${BRIDGE_PORT_PRIORITY}
321	do
322	port="${i%=*}"
323	prio="${i#*=}"
324	[[ ! -z ${port} ]] && brctl setportprio "${iface}" "${port}" "${prio}"
325	done
326	fi
327	}
328
329	config_bridge_devices()
330	{
331	local iface="$1"
332	local method="$2"
333	local bport
334
335	if [[ -z ${iface} ]]
336	then
337	echo "BRIDGE: no \$iface given. Aborting setup."
338	return 1
339	fi
340
341	if [[ -z ${method} ]]
342	then
343	echo "BRIDGE: no \$method given. Aborting setup."
344	return 1
345	fi
346
347	# first check for brctl
348	if [[ -z $(type -P brctl) ]]
349	then
350	echo "brctl not found! Please install 'net-misc/bridge-utils'."
351	return 1
352	fi
353
354	# check the config
355	if [[ -z ${BRIDGE_INTERFACES} ]]
356	then
357	echo "BRIDGE: no \$BRIDGE_INTERFACES given. Aborting setup."
358	return 1
359	fi
360
361	case ${method} in
362	add)
363	# setup the bridge device
364	brctl addbr "${iface}"
365	for bport in ${BRIDGE_INTERFACES}
366	do
367	# enter promiscous mode
368	ifconfig "${bport}" 0.0.0.0 promisc
369	# now setup the bridge
370	brctl addif "${iface}" "${bport}"
371	done
372	# configure all other options
373	config_bridge_options "${iface}"
374	;;
375
376	remove)
377	for bport in ${BRIDGE_INTERFACE}
378	do
379	# bring the interface down
380	ifconfig "${bport}" down
381	# remove the interface from the bridge
382	brctl delif "${iface}" "${bport}"
383	done
384	# bring the bridge down
385	brctl delbr "${iface}"
386	;;
387	esac
388
389	# unset the bridge variable to be safe
390	unset BRIDGE_INTERFACES
391	# continue to setup generic networking
392	}
393
394	config_routes()
395	{
396	local method="$1"
397	local message
398
399	# only add and del are allowed
400	case ${method} in
401	add) message="Adding" ;;
402	del) message="Removing" ;;
403	*)
404	echo "config_routes: unsupported \$method '${method}'."
405	exit 1
406	;;
407	esac
408
409	# adds/delete user routes
410	if [[ -f /etc/conf.d/net.routes ]]
411	then
412	( cat /etc/conf.d/net.routes; echo ) \| # make sure there is a LF at the end
413	while read route
414	do
415	case "${route}" in
416	\#*\|"") continue ;;
417	esac
418	# do not esacpe ${route} or it breaks!
419	route "${method}" ${route}
420	done
421	fi
422	}
423
424	networking_start()
425	{
426	local iface dns routes ALL_INTERFACES
427
428	if [[ -z $1 ]]
429	then
430	ALL_INTERFACES=$(onboot_interface_list /etc/conf.d/net.*)
431	else
432	if [[ -e /etc/conf.d/net.$1 ]]
433	then
434	ALL_INTERFACES="$1"
435	else
436	echo "Interface $1 does not exist. Aborting"
437	exit 1
438	fi
439	fi
440
441	# get list of all devices
442	for iface in ${ALL_INTERFACES}
443	do
444	# checkconfig
445	source /etc/conf.d/net.${iface} \|\| exit 1
446	checkconfig
447
448	# wait until the device is created
449	iface_wait_online 5 "${iface}" \|\| { echo "device '${iface}' does not exist"; continue; }
450
451	# setup mac
452	if [[ -n ${FORCE_MAC_TO} ]]
453	then
454	ifconfig "${iface}" hw ether "${FORCE_MAC_TO}"
455	fi
456
457	# setup bridges
458	if [[ ${iface} = br[0-9]* ]]
459	then
460	config_bridge_devices "${iface}" add
461	fi
462
463	# now configure wireless_extensions
464	[ -x $(type -P iwconfig) ] && setup_wireless_extensions "${iface}"
465
466	# activate the interface
467	ifconfig "${iface}" up
468
469	# setup static or dhcp
470	case ${NETWORKING} in
471	dhcp\|DHCP)
472	${DHCP_PROG} ${DHCP_START} "${iface}" ;;
473	static\|STATIC)
474	ifconfig "${iface}" "${IP}" netmask "${NETMASK}" broadcast "${BROADCAST}" ;;
475	esac
476
477	# setup def gw
478	if [[ -n ${GATEWAY} ]]
479	then
480	route add default gateway "${GATEWAY}" metric 1 dev "${iface}"
481	unset GATEWAY
482	fi
483
484	# setup /etc/resolv.conf
485	# add given nameserver
486	if [[ -n ${NAMESERVER} ]]
487	then
488	# whipe out the old one
489	echo "# Generated by the magellan-initscripts for ${iface}" > /etc/resolv.conf
490	# include head
491	if [ -f /etc/resolv.conf.head ]
492	then
493	cat /etc/resolv.conf.head >> /etc/resolv.conf
494	else
495	echo "# /etc/resolv.conf.head can replace this line" >> /etc/resolv.conf
496	fi
497
498	for dns in ${NAMESERVER}
499	do
500	echo "nameserver ${dns}" >> /etc/resolv.conf
501	done
502
503	# include tail
504	if [ -f /etc/resolv.conf.tail ]
505	then
506	cat /etc/resolv.conf.tail >> /etc/resolv.conf
507	else
508	echo "# /etc/resolv.conf.tail can replace this line" >> /etc/resolv.conf
509	fi
510
511	unset NAMESERVER
512	fi
513	done
514
515	# setup user routes
516	config_routes add
517	}
518
519	networking_stop()
520	{
521	if [[ -z $1 ]]
522	then
523	ALL_INTERFACES=$(onboot_interface_list /etc/conf.d/net.*)
524	else
525	if [[ -e /etc/conf.d/net.$1 ]]
526	then
527	ALL_INTERFACES="$1"
528	else
529	echo "Interface $1 does not exist. Aborting"
530	exit 1
531	fi
532	fi
533
534	# get list of all devices
535	for iface in ${ALL_INTERFACES}
536	do
537	source /etc/conf.d/net.${iface} \|\| exit 1
538	checkconfig
539
540	if [[ -n ${GATEWAY} ]]
541	then
542	route del -net default
543	fi
544
545	ifconfig "${iface}" down
546
547	# remove bridges
548	if [[ ${iface} = br[0-9]* ]]
549	then
550	config_bridge_devices "${iface}" remove
551	fi
552
553	# shutdown dhcp-daemon
554	if [[ ${NETWORKING} = dhcp ]] && [[ -n $(pidof $(basename ${DHCP_PROG})) ]]
555	then
556	if [[ -z ${DHCP_STOP} ]]
557	then
558	killall -15 ${DHCP_PROG}
559	sleep 1
560	# try harder
561	if [[ -n $(pidof $(basename ${DHCP_PROG})) ]]
562	then
563	killall -9 ${DHCP_PROG}
564	fi
565	else
566	${DHCP_PROG} ${DHCP_STOP} "${iface}"
567	fi
568	fi
569
570	# shutdown wpa_supplicant daemon
571	if [[ -n $(pidof wpa_supplicant) ]]
572	then
573	killall wpa_supplicant
574	fi
575	done
576
577	# remove state dir
578	if [ -d /run/wpa_supplicant ]
579	then
580	rm -rf /run/wpa_supplicant
581	fi
582
583	# delete user routes
584	config_routes del
585	}
586
587	case $1 in
588	start)
589	networking_start $2 ;;
590
591	stop)
592	networking_stop $2 ;;
593
594	restart)
595	$0 stop
596	sleep 1
597	$0 start
598	;;
599
600	*)
601	echo "Usage: $0 {start\|stop\|restart} [interface]"
602	exit 1
603	;;
604	esac