tinyalxconfig-ng/functions/config_network.sh

# $Header: /home/cvsd/alx-cvs/alx-src/tinyalxconfig-ng/functions/config_network.sh,v 1.8 2008-06-05 19:08:36 niro Exp $
# configures networkin on the host via mysql db settings

get_network_settings_old()
{
	local all_ifaces
	local iface
	local x

	# get a list of all interfaces
	all_ifaces=$(mysqldo "select iface from cfg_interface where serial='${ALX_SERIAL}'")

	# retrieve hostname and domain information
	evaluate_table cfg_network
	export ALX_HOSTNAME="${cfg_network_hostname}"
	export ALX_DOMAIN="${cfg_network_domain}"

	# now build a multi-ranged "array" for all interface settings
	declare -i x=0

	for iface in ${all_ifaces}
	do
		evaluate_table
		all=$(mysqldo "select iface,
				hostname,
				module,
				domain,
				networking,
				ip,
				netmask,
				dns,
				gateway,
				broadcast
			from cfg_network where serial='${ALX_SERIAL}'")
	
		# split'em up and put 'em in an array
		declare -i i=0
		for x in ${all}
		do
			DB_NETWORK[${i}]="${x}"
			((i++))
		done
	
		# and now put in usable var names and export them systemwide
		export ALX_IFACE="${DB_NETWORK[0]:=NULL}"
		export ALX_HOSTNAME="${DB_NETWORK[1]:=NULL}"
		export ALX_MODULE="${DB_NETWORK[2]:=NULL}"
		export ALX_DOMAIN="${DB_NETWORK[3]:=NULL}"
		export ALX_NETWORKING="${DB_NETWORK[4]:=NULL}"
		export ALX_IP="${DB_NETWORK[5]:=NULL}"
		export ALX_NETMASK="${DB_NETWORK[6]:=NULL}"
		export ALX_DNS="${DB_NETWORK[7]:=NULL}"
		export ALX_GATEWAY="${DB_NETWORK[8]:=NULL}"
		export ALX_BROADCAST="${DB_NETWORK[9]:=NULL}"
	
		# the new mac address hack
		export ALX_FORCEMACTO=$(mysqldo "select forcemacto from cfg_network where serial='${ALX_SERIAL}'")
	
		# wireless extensions
		export ALX_WIRELESS_BITRATE=$(mysqldo "select wireless_bitrate from cfg_network where serial='${ALX_SERIAL}'")
		export ALX_WIRELESS_CHANNEL=$(mysqldo "select wireless_channel from cfg_network where serial='${ALX_SERIAL}'")
		export ALX_WIRELESS_ESSID=$(mysqldo "select wireless_essid from cfg_network where serial='${ALX_SERIAL}'")
		export ALX_WIRELESS_FREQUENCY=$(mysqldo "select wireless_frequency from cfg_network where serial='${ALX_SERIAL}'")
		export ALX_WIRELESS_MODE=$(mysqldo "select wireless_mode from cfg_network where serial='${ALX_SERIAL}'")
		export ALX_WIRELESS_NICK=$(mysqldo "select wireless_nick from cfg_network where serial='${ALX_SERIAL}'")
		export ALX_WIRELESS_AUTH_MODE=$(mysqldo "select wireless_auth_mode from cfg_network where serial='${ALX_SERIAL}'")
		export ALX_WIRELESS_KEY_LENGTH=$(mysqldo "select wireless_key_length from cfg_network where serial='${ALX_SERIAL}'")
		export ALX_WIRELESS_KEY=$(mysqldo "select wireless_key from cfg_network where serial='${ALX_SERIAL}'")
		export ALX_WIRELESS_KEY_ASCII=$(mysqldo "select wireless_key_ascii from cfg_network where serial='${ALX_SERIAL}'")

	done
}

check_network_settings_old()
{
	# sanity checks
	[[ ${ALX_IFACE} = NULL ]] && return 1
	[[ ${ALX_HOSTNAME} = NULL ]] && return 1
	[[ ${ALX_NETWORKING} = NULL ]] && return 1

	# if we get here, everything is ok
	return 0
}

config_networking_old()
{
	local iface

	# first of all get the vars
	get_network_settings
	if ! check_network_settings
	then
		echo -e "${COLYELLOW}Could not retrieve network settings, doing nothing ...${COLDEFAULT}"
		return 1
	fi

	# get the right nic
	if [[ -z ${ALX_IFACE} ]] || [[ ${ALX_IFACE} = NULL ]]
	then
		# default is 'eth0'
		iface="eth0"
	else
		iface="${ALX_IFACE}"
	fi

	# remove all old nics and modules configs
	find /etc/conf.d -type f -name 'net.*' | xargs rm

	# update confd-networking default iface
	[ ! -d ${SETTINGSPATH} ] && install -d ${SETTINGSPATH}
	echo "${iface}" > ${SETTINGSPATH}/confd-networking

	# hostname && hosts
	echo "${ALX_HOSTNAME}" > /etc/hostname
	echo -e "127.0.0.1\tlocalhost.${ALX_DOMAIN}\tlocalhost\t${ALX_HOSTNAME}" > /etc/hosts

	# network devices

	# always on boot
	echo 'ONBOOT="yes"' > /etc/conf.d/net.${iface}
	echo "NETWORKING=\"${ALX_NETWORKING}\"" >> /etc/conf.d/net.${iface}

	case ${ALX_NETWORKING} in
		dhcp|DHCP)
			echo 'DHCP_PROG="/sbin/udhcpc"' >> /etc/conf.d/net.${iface}
			# timeout after 10 seconds and quit after retrieving a lease
			echo 'DHCP_START="-t 10 -q"' >> /etc/conf.d/net.${iface}
			;;

		static|STATIC)
			# add hostname with valid ip to hosts
			echo -e "${ALX_IP}\t${ALX_HOSTNAME}.${ALX_DOMAIN}\t${ALX_HOSTNAME}" >> /etc/hosts
			echo "IP=\"${ALX_IP}\"" >> /etc/conf.d/net.${iface}
			echo "NETMASK=\"${ALX_NETMASK}\"" >> /etc/conf.d/net.${iface}
			echo "BROADCAST=\"${ALX_BROADCAST}\"" >> /etc/conf.d/net.${iface}
			;;
	esac

	# gateway or gateway overrides
	if [[ ${ALX_GATEWAY} != NULL ]]
	then
		echo "GATEWAY=\"${ALX_GATEWAY}\"" >> /etc/conf.d/net.${iface}
		echo "GATEWAY_IF=\"${iface}\"" >> /etc/conf.d/net.${iface}
	fi

	# force mac address override
	if [[ ${ALX_FORCEMACTO} != NULL ]]
	then
		echo "FORCE_MAC_TO=\"${ALX_FORCEMACTO}\"" >> /etc/conf.d/net.${iface}
	fi

	# nameserver or nameserver overrides
	if [[ ${ALX_DNS} != NULL ]]
	then
		echo "nameserver ${ALX_DNS}" > /etc/resolv.conf
	fi

	# wireless extensions
	local value
	local var
	for var in ALX_WIRELESS_BITRATE \
		ALX_WIRELESS_CHANNEL \
		ALX_WIRELESS_ESSID \
		ALX_WIRELESS_FREQUENCY \
		ALX_WIRELESS_MODE \
		ALX_WIRELESS_NICK \
		ALX_WIRELESS_AUTH_MODE \
		ALX_WIRELESS_KEY_LENGTH \
		ALX_WIRELESS_KEY \
		ALX_WIRELESS_KEY_ASCII
	do
		# get the value of $var
		eval value=\$$(echo ${var})

		# write it only if not empty
		if [[ -n ${value} ]] && [[ ${value} != NULL ]]
		then
			# remove ALX_ from var
			echo "${var/ALX_/}=\"${value}\"" >> /etc/conf.d/net.${iface}
		fi

		# clear value
		unset value
	done

	# setup wpa-driver (only zydas atm)
	[[ ${ALX_MODULE} = zd1211 ]] && \
		echo "WIRELESS_WPA_DRIVER=zydas" >> /etc/conf.d/net.${iface}

	# unset all vars
	unset ALX_HOSTNAME
	unset ALX_MODULE
	unset ALX_DOMAIN
	unset ALX_NETWORKING
	unset ALX_IP
	unset ALX_NETMASK
	unset ALX_DNS
	unset ALX_GATEWAY
	unset ALX_BROADCAST
	unset ALX_FORCEMACTO
	unset ALX_IFACE
	unset ALX_WIRELESS_BITRATE
	unset ALX_WIRELESS_CHANNEL
	unset ALX_WIRELESS_ESSID
	unset ALX_WIRELESS_FREQUENCY
	unset ALX_WIRELESS_MODE
	unset ALX_WIRELESS_NICK
	unset ALX_WIRELESS_AUTH_MODE
	unset ALX_WIRELESS_KEY_LENGTH
	unset ALX_WIRELESS_KEY
	unset ALX_WIRELESS_KEY_ASCII
}

# needs exported iface variable!
add_iface_cfg()
{
	echo "$@" >> /etc/conf.d/net.${iface}
}

config_networking()
{
	local iface

	# retrieve informations about hostname and co
	evaluate_table cfg_network

	# configure hostname and domain settings:
	echo "${cfg_network_hostanme}" > /etc/hostname
	echo -e "127.0.0.1\tlocalhost.${cfg_network_domain}\tlocalhost\t${cfg_network_hostname}" > /etc/hosts

# 	if ! check_network_settings
# 	then
# 		echo -e "${COLYELLOW}Could not retrieve network settings, doing nothing ...${COLDEFAULT}"
# 		return 1
# 	fi

	# remove all old nics and modules configs
	find /etc/conf.d -type f -name 'net.*' | xargs rm

#	# update confd-networking default iface
#	[ ! -d ${SETTINGSPATH} ] && install -d ${SETTINGSPATH}
#	echo "${iface}" > ${SETTINGSPATH}/confd-networking

	# configure all available interfaces but activate only the default_iface!
	iface_list=$(mysqldo "select iface from cfg_interfaces where serial='${ALX_SERIAL}'")

	for iface in ${iface_list}
	do
		# initialize the config
		:> /etc/conf.d/net.${iface}

		# retrieve information from mysql
		evaluate_table cfg_interfaces "where serial='${ALX_SERIAL}' and iface='${iface}'"

		if [[ ${iface} = ${cfg_network_default_iface} ]]
		then
			add_iface_cfg "ONBOOT=yes"
		else
			add_iface_cfg "ONBOOT=no"
		fi

		add_iface_cfg NETWORKING=${cfg_interfaces_networking}

		case ${cfg_interfaces_networking} in
			dhcp|DHCP)
				add_iface_cfg "DHCP_PROG=/sbin/udhcpc"
				# timeout after 10 seconds and quit after retrieving a lease
				add_iface_cfg 'DHCP_START="-t 10 -q"'
				;;

			static|STATIC)
				# add hostname with valid ip to hosts
				echo -e "${cfg_interfaces_ip}\t${cfg_interfaces_hostname}.${cfg_interfaces_domain}\t${cfg_interfaces_hostname}" >> /etc/hosts
				add_iface_cfg "IP=${cfg_interfaces_ip}"
				add_iface_cfg "NETMASK=${cfg_interfaces_netmask}"
				add_iface_cfg "BROADCAST=${cfg_interfaces_broadcast}"
				;;
		esac

		# gateway or gateway overrides
		if [[ ${cfg_interfaces_gateway} != NULL ]]
		then
			add_iface_cfg "GATEWAY=${cfg_interfaces_gateway}"
		fi

		# nameserver or nameserver overrides
		if [[ ${cfg_interfaces_dns} != NULL ]]
		then
			add_iface_cfg "NAMESERVER="${cfg_interfaces_dns}""
		fi

		# force mac address override
		if [[ ${cfg_interfaces_forcemacto} != NULL ]]
		then
			add_iface_cfg FORCE_MAC_TO=${cfg_interfaces_forcemacto}
		fi

		# wireless extensions
		local value
		local var
		for var in cfg_interfaces_wireless_bitrate \
			cfg_interfaces_wireless_channel \
			cfg_interfaces_wireless_essid \
			cfg_interfaces_wireless_frequency \
			cfg_interfaces_wireless_mode \
			cfg_interfaces_wireless_nick \
			cfg_interfaces_wireless_auth_mode \
			cfg_interfaces_wireless_key_length \
			cfg_interfaces_wireless_key \
			cfg_interfaces_wireless_key_ascii
		do
			# get the value of $var
			eval value=\$$(echo ${var})

			# write it only if not empty
			if [[ -n ${value} ]] && [[ ${value} != NULL ]]
			then
				# remove cfg_interfaces_from var and convert to upcase
				add_iface_cfg "$(echo ${var/cfg_network_/} | tr '[:lower:]' '[:upper:]')=${value}"
			fi

			# clear value
			unset value
		done

		# setup wpa-driver (only zydas atm)
		case ${cfg_interfaces_module} in 
			zd1211) add_iface_cfg "WIRELESS_WPA_DRIVER=zydas" ;;
		esac
	done
}
1	# $Header: /home/cvsd/alx-cvs/alx-src/tinyalxconfig-ng/functions/config_network.sh,v 1.8 2008-06-05 19:08:36 niro Exp $
2	# configures networkin on the host via mysql db settings
3
4	get_network_settings_old()
5	{
6	local all_ifaces
7	local iface
8	local x
9
10	# get a list of all interfaces
11	all_ifaces=$(mysqldo "select iface from cfg_interface where serial='${ALX_SERIAL}'")
12
13	# retrieve hostname and domain information
14	evaluate_table cfg_network
15	export ALX_HOSTNAME="${cfg_network_hostname}"
16	export ALX_DOMAIN="${cfg_network_domain}"
17
18	# now build a multi-ranged "array" for all interface settings
19	declare -i x=0
20
21	for iface in ${all_ifaces}
22	do
23	evaluate_table
24	all=$(mysqldo "select iface,
25	hostname,
26	module,
27	domain,
28	networking,
29	ip,
30	netmask,
31	dns,
32	gateway,
33	broadcast
34	from cfg_network where serial='${ALX_SERIAL}'")
35
36	# split'em up and put 'em in an array
37	declare -i i=0
38	for x in ${all}
39	do
40	DB_NETWORK[${i}]="${x}"
41	((i++))
42	done
43
44	# and now put in usable var names and export them systemwide
45	export ALX_IFACE="${DB_NETWORK[0]:=NULL}"
46	export ALX_HOSTNAME="${DB_NETWORK[1]:=NULL}"
47	export ALX_MODULE="${DB_NETWORK[2]:=NULL}"
48	export ALX_DOMAIN="${DB_NETWORK[3]:=NULL}"
49	export ALX_NETWORKING="${DB_NETWORK[4]:=NULL}"
50	export ALX_IP="${DB_NETWORK[5]:=NULL}"
51	export ALX_NETMASK="${DB_NETWORK[6]:=NULL}"
52	export ALX_DNS="${DB_NETWORK[7]:=NULL}"
53	export ALX_GATEWAY="${DB_NETWORK[8]:=NULL}"
54	export ALX_BROADCAST="${DB_NETWORK[9]:=NULL}"
55
56	# the new mac address hack
57	export ALX_FORCEMACTO=$(mysqldo "select forcemacto from cfg_network where serial='${ALX_SERIAL}'")
58
59	# wireless extensions
60	export ALX_WIRELESS_BITRATE=$(mysqldo "select wireless_bitrate from cfg_network where serial='${ALX_SERIAL}'")
61	export ALX_WIRELESS_CHANNEL=$(mysqldo "select wireless_channel from cfg_network where serial='${ALX_SERIAL}'")
62	export ALX_WIRELESS_ESSID=$(mysqldo "select wireless_essid from cfg_network where serial='${ALX_SERIAL}'")
63	export ALX_WIRELESS_FREQUENCY=$(mysqldo "select wireless_frequency from cfg_network where serial='${ALX_SERIAL}'")
64	export ALX_WIRELESS_MODE=$(mysqldo "select wireless_mode from cfg_network where serial='${ALX_SERIAL}'")
65	export ALX_WIRELESS_NICK=$(mysqldo "select wireless_nick from cfg_network where serial='${ALX_SERIAL}'")
66	export ALX_WIRELESS_AUTH_MODE=$(mysqldo "select wireless_auth_mode from cfg_network where serial='${ALX_SERIAL}'")
67	export ALX_WIRELESS_KEY_LENGTH=$(mysqldo "select wireless_key_length from cfg_network where serial='${ALX_SERIAL}'")
68	export ALX_WIRELESS_KEY=$(mysqldo "select wireless_key from cfg_network where serial='${ALX_SERIAL}'")
69	export ALX_WIRELESS_KEY_ASCII=$(mysqldo "select wireless_key_ascii from cfg_network where serial='${ALX_SERIAL}'")
70
71	done
72	}
73
74	check_network_settings_old()
75	{
76	# sanity checks
77	[[ ${ALX_IFACE} = NULL ]] && return 1
78	[[ ${ALX_HOSTNAME} = NULL ]] && return 1
79	[[ ${ALX_NETWORKING} = NULL ]] && return 1
80
81	# if we get here, everything is ok
82	return 0
83	}
84
85	config_networking_old()
86	{
87	local iface
88
89	# first of all get the vars
90	get_network_settings
91	if ! check_network_settings
92	then
93	echo -e "${COLYELLOW}Could not retrieve network settings, doing nothing ...${COLDEFAULT}"
94	return 1
95	fi
96
97	# get the right nic
98	if [[ -z ${ALX_IFACE} ]] \|\| [[ ${ALX_IFACE} = NULL ]]
99	then
100	# default is 'eth0'
101	iface="eth0"
102	else
103	iface="${ALX_IFACE}"
104	fi
105
106	# remove all old nics and modules configs
107	find /etc/conf.d -type f -name 'net.*' \| xargs rm
108
109	# update confd-networking default iface
110	[ ! -d ${SETTINGSPATH} ] && install -d ${SETTINGSPATH}
111	echo "${iface}" > ${SETTINGSPATH}/confd-networking
112
113	# hostname && hosts
114	echo "${ALX_HOSTNAME}" > /etc/hostname
115	echo -e "127.0.0.1\tlocalhost.${ALX_DOMAIN}\tlocalhost\t${ALX_HOSTNAME}" > /etc/hosts
116
117	# network devices
118
119	# always on boot
120	echo 'ONBOOT="yes"' > /etc/conf.d/net.${iface}
121	echo "NETWORKING=\"${ALX_NETWORKING}\"" >> /etc/conf.d/net.${iface}
122
123	case ${ALX_NETWORKING} in
124	dhcp\|DHCP)
125	echo 'DHCP_PROG="/sbin/udhcpc"' >> /etc/conf.d/net.${iface}
126	# timeout after 10 seconds and quit after retrieving a lease
127	echo 'DHCP_START="-t 10 -q"' >> /etc/conf.d/net.${iface}
128	;;
129
130	static\|STATIC)
131	# add hostname with valid ip to hosts
132	echo -e "${ALX_IP}\t${ALX_HOSTNAME}.${ALX_DOMAIN}\t${ALX_HOSTNAME}" >> /etc/hosts
133	echo "IP=\"${ALX_IP}\"" >> /etc/conf.d/net.${iface}
134	echo "NETMASK=\"${ALX_NETMASK}\"" >> /etc/conf.d/net.${iface}
135	echo "BROADCAST=\"${ALX_BROADCAST}\"" >> /etc/conf.d/net.${iface}
136	;;
137	esac
138
139	# gateway or gateway overrides
140	if [[ ${ALX_GATEWAY} != NULL ]]
141	then
142	echo "GATEWAY=\"${ALX_GATEWAY}\"" >> /etc/conf.d/net.${iface}
143	echo "GATEWAY_IF=\"${iface}\"" >> /etc/conf.d/net.${iface}
144	fi
145
146	# force mac address override
147	if [[ ${ALX_FORCEMACTO} != NULL ]]
148	then
149	echo "FORCE_MAC_TO=\"${ALX_FORCEMACTO}\"" >> /etc/conf.d/net.${iface}
150	fi
151
152	# nameserver or nameserver overrides
153	if [[ ${ALX_DNS} != NULL ]]
154	then
155	echo "nameserver ${ALX_DNS}" > /etc/resolv.conf
156	fi
157
158	# wireless extensions
159	local value
160	local var
161	for var in ALX_WIRELESS_BITRATE \
162	ALX_WIRELESS_CHANNEL \
163	ALX_WIRELESS_ESSID \
164	ALX_WIRELESS_FREQUENCY \
165	ALX_WIRELESS_MODE \
166	ALX_WIRELESS_NICK \
167	ALX_WIRELESS_AUTH_MODE \
168	ALX_WIRELESS_KEY_LENGTH \
169	ALX_WIRELESS_KEY \
170	ALX_WIRELESS_KEY_ASCII
171	do
172	# get the value of $var
173	eval value=\$$(echo ${var})
174
175	# write it only if not empty
176	if [[ -n ${value} ]] && [[ ${value} != NULL ]]
177	then
178	# remove ALX_ from var
179	echo "${var/ALX_/}=\"${value}\"" >> /etc/conf.d/net.${iface}
180	fi
181
182	# clear value
183	unset value
184	done
185
186	# setup wpa-driver (only zydas atm)
187	[[ ${ALX_MODULE} = zd1211 ]] && \
188	echo "WIRELESS_WPA_DRIVER=zydas" >> /etc/conf.d/net.${iface}
189
190	# unset all vars
191	unset ALX_HOSTNAME
192	unset ALX_MODULE
193	unset ALX_DOMAIN
194	unset ALX_NETWORKING
195	unset ALX_IP
196	unset ALX_NETMASK
197	unset ALX_DNS
198	unset ALX_GATEWAY
199	unset ALX_BROADCAST
200	unset ALX_FORCEMACTO
201	unset ALX_IFACE
202	unset ALX_WIRELESS_BITRATE
203	unset ALX_WIRELESS_CHANNEL
204	unset ALX_WIRELESS_ESSID
205	unset ALX_WIRELESS_FREQUENCY
206	unset ALX_WIRELESS_MODE
207	unset ALX_WIRELESS_NICK
208	unset ALX_WIRELESS_AUTH_MODE
209	unset ALX_WIRELESS_KEY_LENGTH
210	unset ALX_WIRELESS_KEY
211	unset ALX_WIRELESS_KEY_ASCII
212	}
213
214	# needs exported iface variable!
215	add_iface_cfg()
216	{
217	echo "$@" >> /etc/conf.d/net.${iface}
218	}
219
220	config_networking()
221	{
222	local iface
223
224	# retrieve informations about hostname and co
225	evaluate_table cfg_network
226
227	# configure hostname and domain settings:
228	echo "${cfg_network_hostanme}" > /etc/hostname
229	echo -e "127.0.0.1\tlocalhost.${cfg_network_domain}\tlocalhost\t${cfg_network_hostname}" > /etc/hosts
230
231	# if ! check_network_settings
232	# then
233	# echo -e "${COLYELLOW}Could not retrieve network settings, doing nothing ...${COLDEFAULT}"
234	# return 1
235	# fi
236
237	# remove all old nics and modules configs
238	find /etc/conf.d -type f -name 'net.*' \| xargs rm
239
240	# # update confd-networking default iface
241	# [ ! -d ${SETTINGSPATH} ] && install -d ${SETTINGSPATH}
242	# echo "${iface}" > ${SETTINGSPATH}/confd-networking
243
244	# configure all available interfaces but activate only the default_iface!
245	iface_list=$(mysqldo "select iface from cfg_interfaces where serial='${ALX_SERIAL}'")
246
247	for iface in ${iface_list}
248	do
249	# initialize the config
250	:> /etc/conf.d/net.${iface}
251
252	# retrieve information from mysql
253	evaluate_table cfg_interfaces "where serial='${ALX_SERIAL}' and iface='${iface}'"
254
255	if [[ ${iface} = ${cfg_network_default_iface} ]]
256	then
257	add_iface_cfg "ONBOOT=yes"
258	else
259	add_iface_cfg "ONBOOT=no"
260	fi
261
262	add_iface_cfg NETWORKING=${cfg_interfaces_networking}
263
264	case ${cfg_interfaces_networking} in
265	dhcp\|DHCP)
266	add_iface_cfg "DHCP_PROG=/sbin/udhcpc"
267	# timeout after 10 seconds and quit after retrieving a lease
268	add_iface_cfg 'DHCP_START="-t 10 -q"'
269	;;
270
271	static\|STATIC)
272	# add hostname with valid ip to hosts
273	echo -e "${cfg_interfaces_ip}\t${cfg_interfaces_hostname}.${cfg_interfaces_domain}\t${cfg_interfaces_hostname}" >> /etc/hosts
274	add_iface_cfg "IP=${cfg_interfaces_ip}"
275	add_iface_cfg "NETMASK=${cfg_interfaces_netmask}"
276	add_iface_cfg "BROADCAST=${cfg_interfaces_broadcast}"
277	;;
278	esac
279
280	# gateway or gateway overrides
281	if [[ ${cfg_interfaces_gateway} != NULL ]]
282	then
283	add_iface_cfg "GATEWAY=${cfg_interfaces_gateway}"
284	fi
285
286	# nameserver or nameserver overrides
287	if [[ ${cfg_interfaces_dns} != NULL ]]
288	then
289	add_iface_cfg "NAMESERVER="${cfg_interfaces_dns}""
290	fi
291
292	# force mac address override
293	if [[ ${cfg_interfaces_forcemacto} != NULL ]]
294	then
295	add_iface_cfg FORCE_MAC_TO=${cfg_interfaces_forcemacto}
296	fi
297
298	# wireless extensions
299	local value
300	local var
301	for var in cfg_interfaces_wireless_bitrate \
302	cfg_interfaces_wireless_channel \
303	cfg_interfaces_wireless_essid \
304	cfg_interfaces_wireless_frequency \
305	cfg_interfaces_wireless_mode \
306	cfg_interfaces_wireless_nick \
307	cfg_interfaces_wireless_auth_mode \
308	cfg_interfaces_wireless_key_length \
309	cfg_interfaces_wireless_key \
310	cfg_interfaces_wireless_key_ascii
311	do
312	# get the value of $var
313	eval value=\$$(echo ${var})
314
315	# write it only if not empty
316	if [[ -n ${value} ]] && [[ ${value} != NULL ]]
317	then
318	# remove cfg_interfaces_from var and convert to upcase
319	add_iface_cfg "$(echo ${var/cfg_network_/} \| tr '[:lower:]' '[:upper:]')=${value}"
320	fi
321
322	# clear value
323	unset value
324	done
325
326	# setup wpa-driver (only zydas atm)
327	case ${cfg_interfaces_module} in
328	zd1211) add_iface_cfg "WIRELESS_WPA_DRIVER=zydas" ;;
329	esac
330	done
331	}