| virtual.lan (214306) | virtual.lan (222179) |
|---|---|
| 1#!/bin/sh 2# | 1#!/bin/sh 2# |
| 3# Copyright (c) 2010, Yavuz Gokirmak | 3# Copyright (c) 2010, Yavuz Gokirmak |
| 4# 5# All rights reserved. 6# 7# This source code may be used, modified, copied, distributed, and 8# sold, in both source and binary form provided that the above 9# copyright and these terms are retained, verbatim, as the first 10# lines of this file. Under no circumstances is the author 11# responsible for the proper functioning of the software nor does 12# the author assume any responsibility for damages incurred with 13# its use. 14# | 4# 5# All rights reserved. 6# 7# This source code may be used, modified, copied, distributed, and 8# sold, in both source and binary form provided that the above 9# copyright and these terms are retained, verbatim, as the first 10# lines of this file. Under no circumstances is the author 11# responsible for the proper functioning of the software nor does 12# the author assume any responsibility for damages incurred with 13# its use. 14# |
| 15# $FreeBSD: head/share/examples/netgraph/virtual.lan 214306 2010-10-24 22:59:38Z julian $ 16 | 15# $FreeBSD: head/share/examples/netgraph/virtual.lan 222179 2011-05-22 14:23:48Z uqs $ |
| 17# | 16# |
| 18# This script adds virtual nodes to one of the physical interfaces | 17# This script adds virtual nodes to one of the physical interfaces |
| 19# visible on your local area network (LAN). Virtual nodes seems real | 18# visible on your local area network (LAN). Virtual nodes seems real |
| 20# to external observers. | 19# to external observers. |
| 21# If traceroute is executed to one of virtual nodes, the IP | 20# If traceroute is executed to one of virtual nodes, the IP |
| 22# address of the physical interface will not be seen in the output. | 21# address of the physical interface will not be seen in the output. |
| 23# Virtual nodes are generated via jails and network connections are 24# established using ng_bridge(4) and ng_eiface(4) node types. 25# 26# To use this script: 27# 28# 0. Make your own copy of this example script. 29# 30# 1. Edit the definition of ${ETHER_INTF} as described below 31# to define your real interface connected to the LAN. Virtual nodes | 22# Virtual nodes are generated via jails and network connections are 23# established using ng_bridge(4) and ng_eiface(4) node types. 24# 25# To use this script: 26# 27# 0. Make your own copy of this example script. 28# 29# 1. Edit the definition of ${ETHER_INTF} as described below 30# to define your real interface connected to the LAN. Virtual nodes |
| 32# will placed on the same physical network as this interface. | 31# will placed on the same physical network as this interface. |
| 33# | 32# |
| 34# 2. Edit the definition of ${TARGET_TOPOLOGY} to define your virtual | 33# 2. Edit the definition of ${TARGET_TOPOLOGY} to define your virtual |
| 35# nodes. Virtual topology definition includes node names and their | 34# nodes. Virtual topology definition includes node names and their |
| 36# IP address. Target top. sytax: ( node1|ip1/24 node2|ip2/24 ... ) | 35# IP address. Target top. syntax: ( node1|ip1/24 node2|ip2/24 ... ) |
| 37# Example 1: ( n1|122.122.122.12/24, n2|122.122.122.13/24 ...) 38# Example 2: ( n1|2001:b90::14a/125, n1|2001:b90::14b/125 ...) 39# 40# 3. Run this script with "start" as the command line argument. 41# 42# 4. Stop bridging by running this script with "stop" as the 43# command line argument. | 36# Example 1: ( n1|122.122.122.12/24, n2|122.122.122.13/24 ...) 37# Example 2: ( n1|2001:b90::14a/125, n1|2001:b90::14b/125 ...) 38# 39# 3. Run this script with "start" as the command line argument. 40# 41# 4. Stop bridging by running this script with "stop" as the 42# command line argument. |
| 44# 45# 5. This cript uses a template file in order to carry information 46# between start and stop calls. | 43# 44# 5. This script uses a template file in order to carry information 45# between start and stop calls. |
| 47# In the start call, the netgraph interfaces and jails are created. 48# At the stop phase, all created objects should be removed. 49# DO NOT delete the temporary file between the start and stop phases. 50# 51# To add virtual nodes for multiple independent LANs, create multiple 52# copies of this script with different variable definitions. 53# 54# Target Topology: --- 20 unchanged lines hidden (view full) --- 75# \ / +-O-----O-O-----O-O-----O-O-----O-----O-------O-+ 76# +---+ | | 77# | bridge (ng_bridge) | 78# +-----------------------------------------------+ 79# 80# 81 82# Give the name of ethernet interface. Virtual nodes will be seen as | 46# In the start call, the netgraph interfaces and jails are created. 47# At the stop phase, all created objects should be removed. 48# DO NOT delete the temporary file between the start and stop phases. 49# 50# To add virtual nodes for multiple independent LANs, create multiple 51# copies of this script with different variable definitions. 52# 53# Target Topology: --- 20 unchanged lines hidden (view full) --- 74# \ / +-O-----O-O-----O-O-----O-O-----O-----O-------O-+ 75# +---+ | | 76# | bridge (ng_bridge) | 77# +-----------------------------------------------+ 78# 79# 80 81# Give the name of ethernet interface. Virtual nodes will be seen as |
| 83# local neighbours of this interface. | 82# local neighbours of this interface. |
| 84 85ETHER_INTF="em0" 86 | 83 84ETHER_INTF="em0" 85 |
| 87# List the names of virtual nodes and their IP addresses. Use ':' 88# character to seperate node name from node IP address and netmask. | 86# List the names of virtual nodes and their IP addresses. Use ':' 87# character to separate node name from node IP address and netmask. |
| 89 90TARGET_TOPOLOGY="c1|10.0.2.20/24 c2|10.0.2.21/24 c3|10.0.2.22/24" 91 | 88 89TARGET_TOPOLOGY="c1|10.0.2.20/24 c2|10.0.2.21/24 c3|10.0.2.22/24" 90 |
| 92# MAC manifacturer prefix. This can be modified according to needs. 93MAC_PREFIX="00:1d:92" | 91# MAC manufacturer prefix. This can be modified according to needs. 92MAC_PREFIX="00:1d:92" |
| 94 | 93 |
| 95# Temporary file is important for proper execution of script. | 94# Temporary file is important for proper execution of script. |
| 96TEMP_FILE="/var/tmp/.virtual.lan.tmp" 97 98# Set root directory for jails to be created. 99JAIL_PATH="/usr/jails/node" 100 101 102#################################################################### 103#### Nothing below this point should need to be modified. #### 104#################################################################### 105 106 107# Start/restart routine. 108virtual_lan_start() { 109 110 # Load netgraph KLD's as necessary. | 95TEMP_FILE="/var/tmp/.virtual.lan.tmp" 96 97# Set root directory for jails to be created. 98JAIL_PATH="/usr/jails/node" 99 100 101#################################################################### 102#### Nothing below this point should need to be modified. #### 103#################################################################### 104 105 106# Start/restart routine. 107virtual_lan_start() { 108 109 # Load netgraph KLD's as necessary. |
| 111 | 110 |
| 112 for KLD in ng_ether ng_bridge ng_eiface; do 113 if ! kldstat -v | grep -qw ${KLD}; then 114 echo -n "Loading ${KLD}.ko... " 115 kldload ${KLD} || exit 1 116 echo "done" 117 fi 118 done 119 120 # Reset all interfaces and jails. If temporary file can not be found | 111 for KLD in ng_ether ng_bridge ng_eiface; do 112 if ! kldstat -v | grep -qw ${KLD}; then 113 echo -n "Loading ${KLD}.ko... " 114 kldload ${KLD} || exit 1 115 echo "done" 116 fi 117 done 118 119 # Reset all interfaces and jails. If temporary file can not be found |
| 121 # script assumes that there is no previous configuration. 122 | 120 # script assumes that there is no previous configuration. 121 |
| 123 if [ ! -e ${TEMP_FILE} ]; then 124 echo "No previous configuration(${TEMP_FILE}) found to clean-up." 125 else 126 echo -n "Cleaning previous configuration..." 127 virtual_lan_stop 128 echo "done" | 122 if [ ! -e ${TEMP_FILE} ]; then 123 echo "No previous configuration(${TEMP_FILE}) found to clean-up." 124 else 125 echo -n "Cleaning previous configuration..." 126 virtual_lan_stop 127 echo "done" |
| 129 fi | 128 fi |
| 130 | 129 |
| 131 # Create temporary file for usage. This file includes generated | 130 # Create temporary file for usage. This file includes generated |
| 132 # interface names and jail names. All bridges, interfaces and jails | 131 # interface names and jail names. All bridges, interfaces and jails |
| 133 # are written to file while created. In clean-up process written 134 # objects are cleaned (i.e removed) from system. 135 | 132 # are written to file while created. In clean-up process written 133 # objects are cleaned (i.e. removed) from system. 134 |
| 136 if [ -e ${TEMP_FILE} ]; then 137 touch ${TEMP_FILE} 138 fi 139 140 echo -n "Verifying ethernet interface existence..." 141 # Verify ethernet interface exist. 142 if ! ngctl info ${ETHER_INTF}: >/dev/null 2>&1; then 143 echo "Error: interface ${ETHER_INTF} does not exist" 144 exit 1 145 fi 146 ifconfig ${ETHER_INTF} up || exit 1 147 echo "done" 148 149 # Get current number of bridge interfaces in the system. This number 150 # is used to create a name for new bridge. 151 BRIDGE_COUNT=`ngctl l | grep bridge | wc -l | sed -e "s/ //g"` 152 BRIDGE_NAME="bridge${BRIDGE_COUNT}" | 135 if [ -e ${TEMP_FILE} ]; then 136 touch ${TEMP_FILE} 137 fi 138 139 echo -n "Verifying ethernet interface existence..." 140 # Verify ethernet interface exist. 141 if ! ngctl info ${ETHER_INTF}: >/dev/null 2>&1; then 142 echo "Error: interface ${ETHER_INTF} does not exist" 143 exit 1 144 fi 145 ifconfig ${ETHER_INTF} up || exit 1 146 echo "done" 147 148 # Get current number of bridge interfaces in the system. This number 149 # is used to create a name for new bridge. 150 BRIDGE_COUNT=`ngctl l | grep bridge | wc -l | sed -e "s/ //g"` 151 BRIDGE_NAME="bridge${BRIDGE_COUNT}" |
| 153 | 152 |
| 154 # Create new ng_bridge(4) node and attach it to the ethernet interface. 155 # Connect ng_ether:lower hook to bridge:link0 when creating bridge and 156 # connect ng_ether:upper hook to bridge:link1 after bridge name is set. | 153 # Create new ng_bridge(4) node and attach it to the ethernet interface. 154 # Connect ng_ether:lower hook to bridge:link0 when creating bridge and 155 # connect ng_ether:upper hook to bridge:link1 after bridge name is set. |
| 157 | 156 |
| 158 echo "Creating bridge interface: ${BRIDGE_NAME}..." 159 ngctl mkpeer ${ETHER_INTF}: bridge lower link0 || exit 1 160 ngctl name ${ETHER_INTF}:lower ${BRIDGE_NAME} || exit 1 161 ngctl connect ${ETHER_INTF}: ${BRIDGE_NAME}: upper link1 || exit 1 162 echo "Bridge ${BRIDGE_NAME} is created and ${ETHER_INTF} is connected." | 157 echo "Creating bridge interface: ${BRIDGE_NAME}..." 158 ngctl mkpeer ${ETHER_INTF}: bridge lower link0 || exit 1 159 ngctl name ${ETHER_INTF}:lower ${BRIDGE_NAME} || exit 1 160 ngctl connect ${ETHER_INTF}: ${BRIDGE_NAME}: upper link1 || exit 1 161 echo "Bridge ${BRIDGE_NAME} is created and ${ETHER_INTF} is connected." |
| 163 | 162 |
| 164 # In the above code block two hooks are connected to bridge interface, | 163 # In the above code block two hooks are connected to bridge interface, |
| 165 # therefore LINKNUM is set to 2 indicating total number of connected 166 # hooks on the bridge interface. | 164 # therefore LINKNUM is set to 2 indicating total number of connected 165 # hooks on the bridge interface. |
| 167 LINKNUM=2 168 169 # Write name of the bridge to temp file. Clean-up procedure will use 170 # this name to shutdown bridge interface. 171 echo "bridge ${BRIDGE_NAME}" > ${TEMP_FILE} 172 173 174 # Attach other interfaces as well. 175 for NODE in ${TARGET_TOPOLOGY}; do | 166 LINKNUM=2 167 168 # Write name of the bridge to temp file. Clean-up procedure will use 169 # this name to shutdown bridge interface. 170 echo "bridge ${BRIDGE_NAME}" > ${TEMP_FILE} 171 172 173 # Attach other interfaces as well. 174 for NODE in ${TARGET_TOPOLOGY}; do |
| 176 | 175 |
| 177 # Virtual nodes are defined in TARGET_TOPOLOGY variable. They 178 # have the form of 'nodeName|IPaddr'. Below two lines split 179 # node definition to get node name and node IP. 180 181 NODE_NAME=`echo ${NODE} | awk -F"|" '{print $1}'` 182 NODE_IP=`echo ${NODE} | awk -F"|" '{print $2}'` 183 | 176 # Virtual nodes are defined in TARGET_TOPOLOGY variable. They 177 # have the form of 'nodeName|IPaddr'. Below two lines split 178 # node definition to get node name and node IP. 179 180 NODE_NAME=`echo ${NODE} | awk -F"|" '{print $1}'` 181 NODE_IP=`echo ${NODE} | awk -F"|" '{print $2}'` 182 |
| 184 # Create virtual node (jail) with given name and using | 183 # Create virtual node (jail) with given name and using |
| 185 # JAIL_PATH as root directory for jail. 186 | 184 # JAIL_PATH as root directory for jail. 185 |
| 187 echo -n "Creating virtual node (jail) ${NODE_NAME}..." | 186 echo -n "Creating virtual node (jail) ${NODE_NAME}..." |
| 188 jail -c vnet name=${NODE_NAME} host.hostname=${NODE_NAME} \ | 187 jail -c vnet name=${NODE_NAME} host.hostname=${NODE_NAME} \ |
| 189 path=${JAIL_PATH} persist | 188 path=${JAIL_PATH} persist |
| 190 echo "done" | 189 echo "done" |
| 191 192 # Write name of the jail to temp file. Clean-up procedure will | 190 191 # Write name of the jail to temp file. Clean-up procedure will |
| 193 # use this name to remove jail. | 192 # use this name to remove jail. |
| 194 | 193 |
| 195 echo "node ${NODE_NAME}" >> ${TEMP_FILE} 196 | 194 echo "node ${NODE_NAME}" >> ${TEMP_FILE} 195 |
| 197 # Create a ng_eiface object for virtual node. ng_eiface | 196 # Create a ng_eiface object for virtual node. ng_eiface |
| 198 # object has a hook that can be connected to one of bridge | 197 # object has a hook that can be connected to one of bridge |
| 199 # links. After creating interface get its automatically 200 # generated name for further usage. | 198 # links. After creating interface get its automatically 199 # generated name for further usage. |
| 201 202 echo "Creating eiface interface for virtual node ${NODE_NAME}." 203 ngctl mkpeer eiface ether ether 204 EIFACE=`ngctl l | grep ngeth | tail -n 1| awk '{print $2}'` | 200 201 echo "Creating eiface interface for virtual node ${NODE_NAME}." 202 ngctl mkpeer eiface ether ether 203 EIFACE=`ngctl l | grep ngeth | tail -n 1| awk '{print $2}'` |
| 205 echo "Interface ${EIFACE} is created." 206 | 204 echo "Interface ${EIFACE} is created." 205 |
| 207 # Write name of the interface to temp file. Clean-up procedure 208 # will use this name to shutdown interface. | 206 # Write name of the interface to temp file. Clean-up procedure 207 # will use this name to shutdown interface. |
| 209 | 208 |
| 210 echo "interface ${EIFACE}" >> ${TEMP_FILE} | 209 echo "interface ${EIFACE}" >> ${TEMP_FILE} |
| 211 212 # Move virtual interface to virtual node. Note that Interface | 210 211 # Move virtual interface to virtual node. Note that Interface |
| 213 # name will not be changed at the end of this movement. Moved 214 # interface can be seen at the output of ifconfig command in 215 # jail: 'jexec jailname ifconfig' 216 | 212 # name will not be changed at the end of this movement. Moved 213 # interface can be seen at the output of ifconfig command in 214 # jail: 'jexec jailname ifconfig' 215 |
| 217 echo "Moving ${EIFACE} to ${NODE_NAME}" | 216 echo "Moving ${EIFACE} to ${NODE_NAME}" |
| 218 ifconfig ${EIFACE} vnet ${NODE_NAME} | 217 ifconfig ${EIFACE} vnet ${NODE_NAME} |
| 219 | 218 |
| 220 # Make lo0 interface localhost. 221 jexec ${NODE_NAME} ifconfig lo0 localhost 222 223 # Generate a random mac address for virtual interface. First 224 # three octets can be changed by user. Last three octets are | 219 # Make lo0 interface localhost. 220 jexec ${NODE_NAME} ifconfig lo0 localhost 221 222 # Generate a random mac address for virtual interface. First 223 # three octets can be changed by user. Last three octets are |
| 225 # generated randomly. | 224 # generated randomly. |
| 226 M4=`od -An -N2 -i /dev/random | sed -e 's/ //g' | \ 227 awk '{ print $1 % 256 }'` 228 M5=`od -An -N2 -i /dev/random | sed -e 's/ //g' | \ 229 awk '{ print $1 % 256 }'` 230 M6=`od -An -N2 -i /dev/random | sed -e 's/ //g' | \ 231 awk '{ print $1 % 256 }'` 232 233 MAC=`printf ${MAC_PREFIX}:%02x:%02x:%02x ${M4} ${M5} ${M6}` 234 235 # Set the link address (mac address) of virtual interface in 236 # virtual node to randomly generated MAC. 237 echo "Setting MAC address of ${EIFACE} to '${MAC}'" 238 jexec ${NODE_NAME} ifconfig ${EIFACE} link $MAC 239 | 225 M4=`od -An -N2 -i /dev/random | sed -e 's/ //g' | \ 226 awk '{ print $1 % 256 }'` 227 M5=`od -An -N2 -i /dev/random | sed -e 's/ //g' | \ 228 awk '{ print $1 % 256 }'` 229 M6=`od -An -N2 -i /dev/random | sed -e 's/ //g' | \ 230 awk '{ print $1 % 256 }'` 231 232 MAC=`printf ${MAC_PREFIX}:%02x:%02x:%02x ${M4} ${M5} ${M6}` 233 234 # Set the link address (mac address) of virtual interface in 235 # virtual node to randomly generated MAC. 236 echo "Setting MAC address of ${EIFACE} to '${MAC}'" 237 jexec ${NODE_NAME} ifconfig ${EIFACE} link $MAC 238 |
| 240 # Either IPv4 or IPv6 can be used in this script. Ifconfig | 239 # Either IPv4 or IPv6 can be used in this script. Ifconfig |
| 241 # IP setting syntax differs slightly for two IP versions. 242 # For version 4 'inet' keyword is used whereas for version 6 243 # 'inet6' is used. Below line tries to decide which IP version | 240 # IP setting syntax differs slightly for two IP versions. 241 # For version 4 'inet' keyword is used whereas for version 6 242 # 'inet6' is used. Below line tries to decide which IP version |
| 244 # is given and sets IPVER to 'inet' or 'inet6'. | 243 # is given and sets IPVER to 'inet' or 'inet6'. |
| 245 246 IPVER=`echo ${NODE_IP} | awk -F"." '{ split($4,last,"/"); \ 247 if( NF==4 && $1>0 && $1<256 && $2<256 && $3<256 && \ 248 last[1]<256) print "inet"; else print "inet6"}'` | 244 245 IPVER=`echo ${NODE_IP} | awk -F"." '{ split($4,last,"/"); \ 246 if( NF==4 && $1>0 && $1<256 && $2<256 && $3<256 && \ 247 last[1]<256) print "inet"; else print "inet6"}'` |
| 249 | 248 |
| 250 # Set IP address of virtual interface in virtual node. 251 echo "Setting IP address of ${EIFACE} to '${NODE_IP}'" 252 jexec ${NODE_NAME} ifconfig ${EIFACE} ${IPVER} ${NODE_IP} | 249 # Set IP address of virtual interface in virtual node. 250 echo "Setting IP address of ${EIFACE} to '${NODE_IP}'" 251 jexec ${NODE_NAME} ifconfig ${EIFACE} ${IPVER} ${NODE_IP} |
| 253 | 252 |
| 254 # Connect virtual interface to bridge interface. Syntax is : 255 # ngctl connect INTERFACE: BRIDGE: INTERFACE_HOOK EMPTY_LINK. 256 # Interface has one hook named 'ether' and below line connects | 253 # Connect virtual interface to bridge interface. Syntax is : 254 # ngctl connect INTERFACE: BRIDGE: INTERFACE_HOOK EMPTY_LINK. 255 # Interface has one hook named 'ether' and below line connects |
| 257 # ether hook to bridge's first unconnected link. 258 | 256 # ether hook to bridge's first unconnected link. 257 |
| 259 echo -n "Connecting ${EIFACE}:ether to ${BRIDGE_NAME}:link${LINKNUM}..." 260 ngctl connect ${EIFACE}: ${BRIDGE_NAME}: ether link${LINKNUM} \ 261 || exit 1 262 echo "done" 263 264 # Now, bridge has one more connected link thus link count is | 258 echo -n "Connecting ${EIFACE}:ether to ${BRIDGE_NAME}:link${LINKNUM}..." 259 ngctl connect ${EIFACE}: ${BRIDGE_NAME}: ether link${LINKNUM} \ 260 || exit 1 261 echo "done" 262 263 # Now, bridge has one more connected link thus link count is |
| 265 # incremented. | 264 # incremented. |
| 266 LINKNUM=`expr ${LINKNUM} + 1` 267 done | 265 LINKNUM=`expr ${LINKNUM} + 1` 266 done |
| 268 echo "Virtual LAN established succesfully!" | 267 echo "Virtual LAN established successfully!" |
| 269 270} 271 272# Stop routine. 273virtual_lan_stop() { 274 275 if [ ! -e ${TEMP_FILE} ]; then 276 echo "Nothing to stop! ${TEMP_FILE}: temp file not found" 277 else 278 | 268 269} 270 271# Stop routine. 272virtual_lan_stop() { 273 274 if [ ! -e ${TEMP_FILE} ]; then 275 echo "Nothing to stop! ${TEMP_FILE}: temp file not found" 276 else 277 |
| 279 echo -n "Shutdown bridge interface.." | 278 echo -n "Shutdown bridge interface.." |
| 280 OBJECTS=`cat ${TEMP_FILE} | grep bridge | awk '{print $2}'` 281 for BRIDGE in ${OBJECTS}; do 282 ngctl shutdown ${BRIDGE}: >/dev/null 2>&1 283 done 284 echo "done" | 279 OBJECTS=`cat ${TEMP_FILE} | grep bridge | awk '{print $2}'` 280 for BRIDGE in ${OBJECTS}; do 281 ngctl shutdown ${BRIDGE}: >/dev/null 2>&1 282 done 283 echo "done" |
| 285 286 echo -n "Shutdown all eiface interfaces..." | 284 285 echo -n "Shutdown all eiface interfaces..." |
| 287 OBJECTS=`cat ${TEMP_FILE} | grep interface | awk '{print $2}'` 288 for INTERFACE in ${OBJECTS}; do 289 ngctl shutdown ${INTERFACE}: >/dev/null 2>&1 290 done 291 echo "done" | 286 OBJECTS=`cat ${TEMP_FILE} | grep interface | awk '{print $2}'` 287 for INTERFACE in ${OBJECTS}; do 288 ngctl shutdown ${INTERFACE}: >/dev/null 2>&1 289 done 290 echo "done" |
| 292 293 echo -n "Removing all jails..." | 291 292 echo -n "Removing all jails..." |
| 294 OBJECTS=`cat ${TEMP_FILE} | grep node | awk '{print $2}'` 295 for NODE in ${OBJECTS}; do 296 jail -r ${NODE} 297 done 298 echo "done" | 293 OBJECTS=`cat ${TEMP_FILE} | grep node | awk '{print $2}'` 294 for NODE in ${OBJECTS}; do 295 jail -r ${NODE} 296 done 297 echo "done" |
| 299 300 echo "Removing tempfile ${TEMP_FILE}" | 298 299 echo "Removing tempfile ${TEMP_FILE}" |
| 301 rm ${TEMP_FILE} 302 fi | 300 rm ${TEMP_FILE} 301 fi |
| 303 echo "Virtual LAN objects removed succesfully!" | 302 echo "Virtual LAN objects removed successfully!" |
| 304 305} 306 307virtual_lan_usage() { 308 echo "usage: $0 start [target_topology]" 309 echo " : $0 [ stop | help ]" 310} 311 --- 10 unchanged lines hidden (view full) --- 322 ;; 323 stop) 324 325 if [ ! -e ${TEMP_FILE} ]; then 326 echo -n "Noting to stop! ${TEMP_FILE}:" 327 echo " temp file not found" 328 else 329 virtual_lan_stop | 303 304} 305 306virtual_lan_usage() { 307 echo "usage: $0 start [target_topology]" 308 echo " : $0 [ stop | help ]" 309} 310 --- 10 unchanged lines hidden (view full) --- 321 ;; 322 stop) 323 324 if [ ! -e ${TEMP_FILE} ]; then 325 echo -n "Noting to stop! ${TEMP_FILE}:" 326 echo " temp file not found" 327 else 328 virtual_lan_stop |
| 330 fi | 329 fi |
| 331 ;; 332 help) 333 virtual_lan_usage 334 exit 1 335 ;; 336 *) 337 virtual_lan_usage 338 exit 1 --- 22 unchanged lines hidden --- | 330 ;; 331 help) 332 virtual_lan_usage 333 exit 1 334 ;; 335 *) 336 virtual_lan_usage 337 exit 1 --- 22 unchanged lines hidden --- |