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
}

iface_has_link()
{
	local interface="$1"
	local flags

	[[ -n ${interface} ]] || return 2
	interface="/sys/class/net/${interface}"
	[[ -d ${interface} ]] || return 2
	flags=$(cat ${interface}/flags)
	echo $((${flags}|0x41)) > ${interface}/flags # 0x41: IFF_UP|IFF_RUNNING
	[ "$(cat ${interface}/carrier)" = 1 ] || return 1
}

# 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_SCAN_HIDDEN_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

	# point-to-point support
	local POINTOPOINT

	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 nl80211 as default driver, do not abort here anymore
	[[ -z ${WIRELESS_WPA_DRIVER} ]] && WIRELESS_WPA_DRIVER=nl80211

	# disable hidden ssid scan as default
	[[ -z ${WIRELESS_SCAN_HIDDEN_ESSID} ]] && WIRELESS_SCAN_HIDDEN_ESSID=0

	# 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@:${WIRELESS_ESSID}:g" \
			-e "s:@WIRELESS_SCAN_HIDDEN_ESSID@:${WIRELESS_SCAN_HIDDEN_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 ${NETWORKING} in
			dhcp|DHCP)
				if iface_has_link "${iface}"
				then
					${DHCP_PROG} ${DHCP_START} "${iface}"
				else
					echo "Interface '${iface}' has no link. Not running '${DHCP_PROG}'."
				fi
				;;
			static|STATIC)
				ifconfig "${iface}" "${IP}" netmask "${NETMASK}" broadcast "${BROADCAST}"
				if [[ -n ${POINTOPOINT} ]]
				then
					ifconfig "${iface}" "${IP}" pointopoint "${POINTOPOINT}"
				fi
				;;
		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	iface_has_link()
26	{
27	local interface="$1"
28	local flags
29
30	[[ -n ${interface} ]] \|\| return 2
31	interface="/sys/class/net/${interface}"
32	[[ -d ${interface} ]] \|\| return 2
33	flags=$(cat ${interface}/flags)
34	echo $((${flags}\|0x41)) > ${interface}/flags # 0x41: IFF_UP\|IFF_RUNNING
35	[ "$(cat ${interface}/carrier)" = 1 ] \|\| return 1
36	}
37
38	# read values from files
39	read_value()
40	{
41	local var="$1"
42	local file="$2"
43	local value
44
45	# local all possible vars
46	# global
47	local ONBOOT
48	local NETWORKING
49
50	# static
51	local IP
52	local NETMASK
53	local BROADCAST
54	local NETWORKING
55	local FORCE_MAC_TO
56
57	# dhcp
58	local DHCP_PROG
59	local DHCP_START
60	local DHCP_STOP
61
62	# default gw
63	local GATEWAY
64	local GATEWAY_IF
65
66	# wireless extensions
67	local WIRELESS_AP
68	local WIRELESS_AUTH_MODE
69	local WIRELESS_BITRATE
70	local WIRELESS_CHANNEL
71	local WIRELESS_DEFAULT_KEY
72	local WIRELESS_ESSID
73	local WIRELESS_SCAN_HIDDEN_ESSID
74	local WIRELESS_FREQUENCY
75	local WIRELESS_KEY
76	local WIRELESS_KEY_ASCII
77	local WIRELESS_KEY_0
78	local WIRELESS_KEY_1
79	local WIRELESS_KEY_2
80	local WIRELESS_KEY_3
81	local WIRELESS_KEY_LENGTH
82	local WIRELESS_MODE
83	local WIRELESS_NICK
84	local WIRELESS_NWID
85	local WIRELESS_POWER
86	local WIRELESS_WPA_DRIVER
87
88	local BRIDGE_INTERFACES
89	local BRIDGE_STP
90	local BRIDGE_AGEING_TIME
91	local BRIDGE_PRIORITY
92	local BRIDGE_FORWARD_DELAY
93	local BRIDGE_HELLO_TIME
94	local BRIDGE_MAX_MESSAGE_AGE
95	local BRIDGE_PATH_COST
96	local BRIDGE_PORT_PRIORITY
97
98	# point-to-point support
99	local POINTOPOINT
100
101	source ${file}
102	eval value=\$$(echo ${var})
103	echo "${value}"
104	}
105
106	checkconfig()
107	{
108	if [[ -z ${NETWORKING} ]]
109	then
110	echo "NETWORKING missing in net.${iface}, aborted"
111	exit 1
112	fi
113
114	case "${NETWORKING}" in
115	static)
116	if [[ -z ${IP} ]]
117	then
118	echo "IP missing in net.${iface}, aborted"
119	exit 1
120	fi
121
122	if [[ -z ${NETMASK} ]]
123	then
124	echo -n "NETMASK missing in net.${iface}, "
125	echo "using ${DEFAULT_NETMASK}"
126	NETMASK="${DEFAULT_NETMASK}"
127	fi
128
129	if [[ -z ${BROADCAST} ]]
130	then
131	echo -n "BROADCAST missing in net.${iface}, "
132	echo "using default address"
133	fi
134	;;
135
136	dhcp)
137	if [[ -z ${DHCP_PROG} ]]
138	then
139	echo -n "DHCP_PROG missing in net.${iface},"
140	echo "using default programm ${DEFAULT_DHCP_PROG}"
141	DHCP_PROG="${DEFAULT_DHCP_PROG}"
142	fi
143	[[ -z ${DHCP_START} ]] && DHCP_START="${DEFAULT_DHCP_START}"
144	[[ -z ${DHCP_STOP} ]] && DHCP_STOP="${DEFAULT_DHCP_STOP}"
145	;;
146
147	esac
148	}
149
150	# onboot_interface_list /path/to/files*
151	onboot_interface_list()
152	{
153	local file
154	local devices
155	local iface
156
157	# get list of all devices
158	for file in $@
159	do
160	iface="$(basename ${file} \| sed s/net.//)"
161
162	# exclude backup files and exclude net.routes and net.sample too
163	case "${iface}" in
164	*~) continue ;;
165	routes) continue ;;
166	sample) continue ;;
167	esac
168
169	if [[ $(read_value ONBOOT ${file}) = yes ]]
170	then
171	devices="${devices} ${iface}"
172	fi
173	done
174
175	echo "${devices}"
176	}
177
178	config_wireless_wep()
179	{
180	local iface="$1"
181
182	if [[ -z ${iface} ]]
183	then
184	echo "WEP: no \$iface given. Aborting setup."
185	return 1
186	fi
187
188	iwconfig "${iface}" enc on
189	[[ -n ${WIRELESS_KEY_LENGTH} ]] && iwconfig "${iface}" enc "${WIRELESS_KEY_LENGTH}"
190	[[ -n ${WIRELESS_KEY} ]] && iwconfig "${iface}" key "${WIRELESS_KEY}"
191	[[ -n ${WIRELESS_KEY_ASCII} ]] && iwconfig "${iface}" key s:"${WIRELESS_KEY_ASCII}"
192	}
193
194	config_wireless_wpa()
195	{
196	local iface="$1"
197
198	if [[ -z ${iface} ]]
199	then
200	echo "WPA: no \$iface given. Aborting setup."
201	return 1
202	fi
203
204	if [ ! -x $(type -P wpa_supplicant) ]
205	then
206	echo "WPA: wpa_supplicant not installed. Aborting setup."
207	return 1
208	fi
209
210	# get default settings
211	[[ -f /etc/conf.d/wpa_supplicant ]] && source /etc/conf.d/wpa_supplicant
212
213	# check the configuration
214	[[ -z ${WIRELESS_WPA_CONFIG} ]] && WIRELESS_WPA_CONFIG=/etc/wpa_supplicant/wpa_supplicant.auto
215	[[ -z ${WIRELESS_WPA_SKEL} ]] && WIRELESS_WPA_SKEL=/etc/conf.d/wpa_supplicant.skel
216
217	# use nl80211 as default driver, do not abort here anymore
218	[[ -z ${WIRELESS_WPA_DRIVER} ]] && WIRELESS_WPA_DRIVER=nl80211
219
220	# disable hidden ssid scan as default
221	[[ -z ${WIRELESS_SCAN_HIDDEN_ESSID} ]] && WIRELESS_SCAN_HIDDEN_ESSID=0
222
223	# write a config with the settings from net.${iface}
224	# only wpa-psk ! all other needs manual setup
225	if [[ ${WIRELESS_WPA_AUTOCONF} = true ]]
226	then
227	# write default cfg from skeleton
228	cat ${WIRELESS_WPA_SKEL} > ${WIRELESS_WPA_CONFIG}
229
230	local wpa_proto
231	case ${WIRELESS_AUTH_MODE} in
232	wpa) wpa_proto="WPA" ;;
233	wpa2) wpa_proto="WPA2" ;;
234	esac
235
236	# setup the network entry
237	sed -i -e "s:@WIRELESS_ESSID@:${WIRELESS_ESSID}:g" \
238	-e "s:@WIRELESS_SCAN_HIDDEN_ESSID@:${WIRELESS_SCAN_HIDDEN_ESSID}:g" \
239	-e "s:@WIRELESS_KEY@:${WIRELESS_KEY_ASCII}:g" \
240	-e "s:@WIRELESS_AUTH_MODE@:${wpa_proto}:g" \
241	${WIRELESS_WPA_CONFIG}
242	fi
243
244	# remove old state dir
245	[ -d /run/wpa_supplicant ] && rm -rf /run/wpa_supplicant
246
247	# now run the wpa_supplicant dameon
248	wpa_supplicant -B \
249	-D"${WIRELESS_WPA_DRIVER}" \
250	-c"${WIRELESS_WPA_CONFIG}" \
251	-i"${iface}" \
252	${WIRELESS_WPA_OPTS}
253
254	# echo wait 5 seconds
255	echo " Waiting 5 seconds to retrieve authentification reply ... "
256	sleep 5
257	}
258
259	setup_wireless_extensions()
260	{
261	local iface="$1"
262
263	if [[ -z ${iface} ]]
264	then
265	echo "WIRELESS_EXTENSIONS: no \$iface given. Aborting setup."
266	return 1
267	fi
268
269	[[ -n ${WIRELESS_BITRATE} ]] && iwconfig "${iface}" rate "${WIRELESS_BITRATE}"
270	[[ -n ${WIRELESS_CHANNEL} ]] && iwconfig "${iface}" channel "${WIRELESS_CHANNEL}"
271	[[ -n ${WIRELESS_ESSID} ]] && iwconfig "${iface}" essid "${WIRELESS_ESSID}"
272	[[ -n ${WIRELESS_FREQUENCY} ]] && iwconfig "${iface}" freq "${WIRELESS_FREQUENCY}"
273	[[ -n ${WIRELESS_MODE} ]] && iwconfig "${iface}" mode "${WIRELESS_MODE}"
274	[[ -n ${WIRELESS_NICK} ]] && iwconfig "${iface}" nick "${WIRELESS_NICK}"
275
276	case "${WIRELESS_AUTH_MODE}" in
277	wpa\|wpa2) config_wireless_wpa "${iface}" ;;
278	wep\|on) config_wireless_wep "${iface}" ;;
279	off) iwconfig "${iface}" enc off ;;
280	esac
281	}
282
283	config_bridge_options()
284	{
285	local iface="$1"
286	local i
287	local port
288	local cost
289	local prio
290
291	# enable spanning-tree protocol
292	case ${BRIDGE_STP} in
293	on\|off) brctl stp "${iface}" "${BRIDGE_STP}" ;;
294	*) echo "BRIDGE: unkown value \$BRIDGE_STP='$BRIDGE_STP'."; return 1 ;;
295	esac
296
297	# configure ageing time
298	if [[ ! -z ${BRIDGE_AGEING_TIME} ]]
299	then
300	brctl setageing "${iface}" "${BRIDGE_AGEING_TIME}"
301	fi
302
303	# configure bridge priority
304	if [[ ! -z ${BRIDGE_PRIORITY} ]]
305	then
306	brctl setbridgeprio "${iface}" "${BRIDGE_PRIORITY}"
307	fi
308
309	# configure forward delay
310	if [[ ! -z ${BRIDGE_FORWARD_DELAY} ]]
311	then
312	brctl setfd "${iface}" "${BRIDGE_FORWARD_DELAY}"
313	fi
314
315	# configure hello time
316	if [[ ! -z ${BRIDGE_HELLO_TIME} ]]
317	then
318	brctl sethello "${iface}" "${BRIDGE_HELLO_TIME}"
319	fi
320
321	# configure maximal message age
322	if [[ ! -z ${BRIDGE_MAX_MESSAGE_AGE} ]]
323	then
324	brctl setmaxage "${iface}" "${BRIDGE_MAX_MESSAGE_AGE}"
325	fi
326
327	# configure path cost for every port
328	if [[ ! -z ${BRIDGE_PATH_COST} ]]
329	then
330	for i in ${BRIDGE_PATH_COST}
331	do
332	port="${i%=*}"
333	cost="${i#*=}"
334	[[ ! -z ${port} ]] && brctl pathcost "${iface}" "${port}" "${cost}"
335	done
336	fi
337
338	# configure port priority for every port
339	if [[ ! -z ${BRIDGE_PORT_PRIORITY} ]]
340	then
341	for i in ${BRIDGE_PORT_PRIORITY}
342	do
343	port="${i%=*}"
344	prio="${i#*=}"
345	[[ ! -z ${port} ]] && brctl setportprio "${iface}" "${port}" "${prio}"
346	done
347	fi
348	}
349
350	config_bridge_devices()
351	{
352	local iface="$1"
353	local method="$2"
354	local bport
355
356	if [[ -z ${iface} ]]
357	then
358	echo "BRIDGE: no \$iface given. Aborting setup."
359	return 1
360	fi
361
362	if [[ -z ${method} ]]
363	then
364	echo "BRIDGE: no \$method given. Aborting setup."
365	return 1
366	fi
367
368	# first check for brctl
369	if [[ -z $(type -P brctl) ]]
370	then
371	echo "brctl not found! Please install 'net-misc/bridge-utils'."
372	return 1
373	fi
374
375	# check the config
376	if [[ -z ${BRIDGE_INTERFACES} ]]
377	then
378	echo "BRIDGE: no \$BRIDGE_INTERFACES given. Aborting setup."
379	return 1
380	fi
381
382	case ${method} in
383	add)
384	# setup the bridge device
385	brctl addbr "${iface}"
386	for bport in ${BRIDGE_INTERFACES}
387	do
388	# enter promiscous mode
389	ifconfig "${bport}" 0.0.0.0 promisc
390	# now setup the bridge
391	brctl addif "${iface}" "${bport}"
392	done
393	# configure all other options
394	config_bridge_options "${iface}"
395	;;
396
397	remove)
398	for bport in ${BRIDGE_INTERFACE}
399	do
400	# bring the interface down
401	ifconfig "${bport}" down
402	# remove the interface from the bridge
403	brctl delif "${iface}" "${bport}"
404	done
405	# bring the bridge down
406	brctl delbr "${iface}"
407	;;
408	esac
409
410	# unset the bridge variable to be safe
411	unset BRIDGE_INTERFACES
412	# continue to setup generic networking
413	}
414
415	config_routes()
416	{
417	local method="$1"
418	local message
419
420	# only add and del are allowed
421	case ${method} in
422	add) message="Adding" ;;
423	del) message="Removing" ;;
424	*)
425	echo "config_routes: unsupported \$method '${method}'."
426	exit 1
427	;;
428	esac
429
430	# adds/delete user routes
431	if [[ -f /etc/conf.d/net.routes ]]
432	then
433	( cat /etc/conf.d/net.routes; echo ) \| # make sure there is a LF at the end
434	while read route
435	do
436	case "${route}" in
437	\#*\|"") continue ;;
438	esac
439	# do not esacpe ${route} or it breaks!
440	route "${method}" ${route}
441	done
442	fi
443	}
444
445	networking_start()
446	{
447	local iface dns routes ALL_INTERFACES
448
449	if [[ -z $1 ]]
450	then
451	ALL_INTERFACES=$(onboot_interface_list /etc/conf.d/net.*)
452	else
453	if [[ -e /etc/conf.d/net.$1 ]]
454	then
455	ALL_INTERFACES="$1"
456	else
457	echo "Interface $1 does not exist. Aborting"
458	exit 1
459	fi
460	fi
461
462	# get list of all devices
463	for iface in ${ALL_INTERFACES}
464	do
465	# checkconfig
466	source /etc/conf.d/net.${iface} \|\| exit 1
467	checkconfig
468
469	# wait until the device is created
470	iface_wait_online 5 "${iface}" \|\| { echo "device '${iface}' does not exist"; continue; }
471
472	# setup mac
473	if [[ -n ${FORCE_MAC_TO} ]]
474	then
475	ifconfig "${iface}" hw ether "${FORCE_MAC_TO}"
476	fi
477
478	# setup bridges
479	if [[ ${iface} = br[0-9]* ]]
480	then
481	config_bridge_devices "${iface}" add
482	fi
483
484	# now configure wireless_extensions
485	[ -x $(type -P iwconfig) ] && setup_wireless_extensions "${iface}"
486
487	# activate the interface
488	ifconfig "${iface}" up
489
490	# setup static or dhcp
491	case ${NETWORKING} in
492	dhcp\|DHCP)
493	if iface_has_link "${iface}"
494	then
495	${DHCP_PROG} ${DHCP_START} "${iface}"
496	else
497	echo "Interface '${iface}' has no link. Not running '${DHCP_PROG}'."
498	fi
499	;;
500	static\|STATIC)
501	ifconfig "${iface}" "${IP}" netmask "${NETMASK}" broadcast "${BROADCAST}"
502	if [[ -n ${POINTOPOINT} ]]
503	then
504	ifconfig "${iface}" "${IP}" pointopoint "${POINTOPOINT}"
505	fi
506	;;
507	esac
508
509	# setup def gw
510	if [[ -n ${GATEWAY} ]]
511	then
512	route add default gateway "${GATEWAY}" metric 1 dev "${iface}"
513	unset GATEWAY
514	fi
515
516	# setup /etc/resolv.conf
517	# add given nameserver
518	if [[ -n ${NAMESERVER} ]]
519	then
520	# whipe out the old one
521	echo "# Generated by the magellan-initscripts for ${iface}" > /etc/resolv.conf
522	# include head
523	if [ -f /etc/resolv.conf.head ]
524	then
525	cat /etc/resolv.conf.head >> /etc/resolv.conf
526	else
527	echo "# /etc/resolv.conf.head can replace this line" >> /etc/resolv.conf
528	fi
529
530	for dns in ${NAMESERVER}
531	do
532	echo "nameserver ${dns}" >> /etc/resolv.conf
533	done
534
535	# include tail
536	if [ -f /etc/resolv.conf.tail ]
537	then
538	cat /etc/resolv.conf.tail >> /etc/resolv.conf
539	else
540	echo "# /etc/resolv.conf.tail can replace this line" >> /etc/resolv.conf
541	fi
542
543	unset NAMESERVER
544	fi
545	done
546
547	# setup user routes
548	config_routes add
549	}
550
551	networking_stop()
552	{
553	if [[ -z $1 ]]
554	then
555	ALL_INTERFACES=$(onboot_interface_list /etc/conf.d/net.*)
556	else
557	if [[ -e /etc/conf.d/net.$1 ]]
558	then
559	ALL_INTERFACES="$1"
560	else
561	echo "Interface $1 does not exist. Aborting"
562	exit 1
563	fi
564	fi
565
566	# get list of all devices
567	for iface in ${ALL_INTERFACES}
568	do
569	source /etc/conf.d/net.${iface} \|\| exit 1
570	checkconfig
571
572	if [[ -n ${GATEWAY} ]]
573	then
574	route del -net default
575	fi
576
577	ifconfig "${iface}" down
578
579	# remove bridges
580	if [[ ${iface} = br[0-9]* ]]
581	then
582	config_bridge_devices "${iface}" remove
583	fi
584
585	# shutdown dhcp-daemon
586	if [[ ${NETWORKING} = dhcp ]] && [[ -n $(pidof $(basename ${DHCP_PROG})) ]]
587	then
588	if [[ -z ${DHCP_STOP} ]]
589	then
590	killall -15 ${DHCP_PROG}
591	sleep 1
592	# try harder
593	if [[ -n $(pidof $(basename ${DHCP_PROG})) ]]
594	then
595	killall -9 ${DHCP_PROG}
596	fi
597	else
598	${DHCP_PROG} ${DHCP_STOP} "${iface}"
599	fi
600	fi
601
602	# shutdown wpa_supplicant daemon
603	if [[ -n $(pidof wpa_supplicant) ]]
604	then
605	killall wpa_supplicant
606	fi
607	done
608
609	# remove state dir
610	if [ -d /run/wpa_supplicant ]
611	then
612	rm -rf /run/wpa_supplicant
613	fi
614
615	# delete user routes
616	config_routes del
617	}
618
619	case $1 in
620	start)
621	networking_start $2 ;;
622
623	stop)
624	networking_stop $2 ;;
625
626	restart)
627	$0 stop
628	sleep 1
629	$0 start
630	;;
631
632	*)
633	echo "Usage: $0 {start\|stop\|restart} [interface]"
634	exit 1
635	;;
636	esac