| ether.bridge (95258) | ether.bridge (156313) |
|---|---|
| 1#!/bin/sh | 1#!/bin/sh |
| 2# $FreeBSD: head/share/examples/netgraph/ether.bridge 95258 2002-04-22 13:44:47Z des $ | 2# $FreeBSD: head/share/examples/netgraph/ether.bridge 156313 2006-03-05 15:53:07Z schweikh $ |
| 3# This script sets up an Ethernet bridging network across multiple 4# Ethernet interfaces using the ng_bridge(4) and ng_ether(4) netgraph 5# node types. 6# 7# To use this script: 8# | 3# This script sets up an Ethernet bridging network across multiple 4# Ethernet interfaces using the ng_bridge(4) and ng_ether(4) netgraph 5# node types. 6# 7# To use this script: 8# |
| 9# 0. Make your own copy of this example script | 9# 0. Make your own copy of this example script. |
| 10# 11# 1. Give your bridging network a name by editing the definition of 12# ${BRIDGE_NAME} below. It must be a valid netgraph node name. 13# 14# 2. Edit the definitions of ${BRIDGE_IFACES} and ${LOCAL_IFACES} 15# as described below to define your bridging interfaces. 16# 17# 3. Run this script with "start" as the command line argument. --- 4 unchanged lines hidden (view full) --- 22# 5. Stop bridging by running this script with "stop" as the 23# command line argument. 24# 25# To run multiple independent bridging networks, create multiple 26# copies of this script with different variable definitions. 27# 28# To make a "brouted" network, with IP being routed and other protocols being 29# bridged, add all the interface in the BRIDGE_IFACES to the LOCAL_IFACES. | 10# 11# 1. Give your bridging network a name by editing the definition of 12# ${BRIDGE_NAME} below. It must be a valid netgraph node name. 13# 14# 2. Edit the definitions of ${BRIDGE_IFACES} and ${LOCAL_IFACES} 15# as described below to define your bridging interfaces. 16# 17# 3. Run this script with "start" as the command line argument. --- 4 unchanged lines hidden (view full) --- 22# 5. Stop bridging by running this script with "stop" as the 23# command line argument. 24# 25# To run multiple independent bridging networks, create multiple 26# copies of this script with different variable definitions. 27# 28# To make a "brouted" network, with IP being routed and other protocols being 29# bridged, add all the interface in the BRIDGE_IFACES to the LOCAL_IFACES. |
| 30# I you just want a normal bridge, just one will surfice. 31# in some cases you may want some mixture. 32# | 30# If you just want a normal bridge, just one will be enough. 31# In some cases you may want some combination. 32# |
| 33 | 33 |
| 34# Give each bridging network a unique name here | 34# Give each bridging network a unique name here. |
| 35 36BRIDGE_NAME="bnet0" 37 38# List the names of the interfaces that you want to bridge across 39# here in ${BRIDGE_IFACES}. If you want to include the local host 40# machine as well then set ${LOCAL_IFACES} as well (they may also be 41# listed in ${BRIDGE_IFACES}). Of course, any ${LOCAL_IFACE} must 42# be ifconfig(8)ured separately. If you don't want a ${LOCAL_IFACE} | 35 36BRIDGE_NAME="bnet0" 37 38# List the names of the interfaces that you want to bridge across 39# here in ${BRIDGE_IFACES}. If you want to include the local host 40# machine as well then set ${LOCAL_IFACES} as well (they may also be 41# listed in ${BRIDGE_IFACES}). Of course, any ${LOCAL_IFACE} must 42# be ifconfig(8)ured separately. If you don't want a ${LOCAL_IFACE} |
| 43# then leave it defined as the emtpy string. | 43# then assign it the emtpy string. |
| 44 45BRIDGE_IFACES="de0 fxp0 fxp1" 46LOCAL_IFACES="fxp0 fxp1" 47 | 44 45BRIDGE_IFACES="de0 fxp0 fxp1" 46LOCAL_IFACES="fxp0 fxp1" 47 |
| 48#################################################################### 49#### Everything below this point should not need to be modified #### 50#################################################################### | 48##################################################################### 49#### Everything below this point should not need to be modified. #### 50##################################################################### |
| 51 | 51 |
| 52# Routine to verify node's existence | 52# Routine to verify node's existence. |
| 53bridge_verify() { 54 ngctl info ${BRIDGE_NAME}: >/dev/null 2>&1 55 if [ $? -ne 0 ]; then 56 echo "${BRIDGE_NAME}: bridge network not found" 57 exit 1 58 fi 59} 60 | 53bridge_verify() { 54 ngctl info ${BRIDGE_NAME}: >/dev/null 2>&1 55 if [ $? -ne 0 ]; then 56 echo "${BRIDGE_NAME}: bridge network not found" 57 exit 1 58 fi 59} 60 |
| 61# Routine to get and display link stats | 61# Routine to get and display link stats. |
| 62bridge_linkstats() { 63 STATS=`ngctl msg ${BRIDGE_NAME}: getstats $1` 64 if [ $? -ne 0 ]; then 65 exit 1 66 fi 67 echo "${STATS}" | fmt 2 | awk '/=/ { fl=index($0, "="); \ 68 printf "%20s = %s\n", substr($0, 0, fl - 1), substr($0, fl + 1); }' 69} 70 | 62bridge_linkstats() { 63 STATS=`ngctl msg ${BRIDGE_NAME}: getstats $1` 64 if [ $? -ne 0 ]; then 65 exit 1 66 fi 67 echo "${STATS}" | fmt 2 | awk '/=/ { fl=index($0, "="); \ 68 printf "%20s = %s\n", substr($0, 0, fl - 1), substr($0, fl + 1); }' 69} 70 |
| 71# Start/restart routine | 71# Start/restart routine. |
| 72bridge_start() { 73 | 72bridge_start() { 73 |
| 74 # Load netgraph KLD's as necessary | 74 # Load netgraph KLD's as necessary. |
| 75 for KLD in ng_ether ng_bridge; do | 75 for KLD in ng_ether ng_bridge; do |
| 76 if kldstat -v | grep -qw ${KLD}; then 77 else | 76 if ! kldstat -v | grep -qw ${KLD}; then |
| 78 echo -n "Loading ${KLD}.ko... " 79 kldload ${KLD} || exit 1 80 echo "done" 81 fi 82 done 83 | 77 echo -n "Loading ${KLD}.ko... " 78 kldload ${KLD} || exit 1 79 echo "done" 80 fi 81 done 82 |
| 84 # Reset all interfaces | 83 # Reset all interfaces. |
| 85 bridge_stop 86 | 84 bridge_stop 85 |
| 87 # Verify all interfaces exist | 86 # Verify all interfaces exist. |
| 88 for ETHER in ${BRIDGE_IFACES} ${LOCAL_IFACES}; do | 87 for ETHER in ${BRIDGE_IFACES} ${LOCAL_IFACES}; do |
| 89 if ngctl info ${ETHER}: >/dev/null 2>&1; then 90 else | 88 if ! ngctl info ${ETHER}: >/dev/null 2>&1; then |
| 91 echo "Error: interface ${ETHER} does not exist" 92 exit 1 93 fi 94 ifconfig ${ETHER} up || exit 1 95 done 96 | 89 echo "Error: interface ${ETHER} does not exist" 90 exit 1 91 fi 92 ifconfig ${ETHER} up || exit 1 93 done 94 |
| 97 # Create new ng_bridge(4) node, attached to the first interface | 95 # Create new ng_bridge(4) node, attached to the first interface. |
| 98 FIRSTIF=`echo ${BRIDGE_IFACES} | awk '{ print $1 }'` 99 ngctl mkpeer ${FIRSTIF}: bridge lower link0 || exit 1 100 ngctl name ${FIRSTIF}:lower ${BRIDGE_NAME} || exit 1 101 | 96 FIRSTIF=`echo ${BRIDGE_IFACES} | awk '{ print $1 }'` 97 ngctl mkpeer ${FIRSTIF}: bridge lower link0 || exit 1 98 ngctl name ${FIRSTIF}:lower ${BRIDGE_NAME} || exit 1 99 |
| 102 # Attach other interfaces as well | 100 # Attach other interfaces as well. |
| 103 LINKNUM=0 104 for ETHER in ${BRIDGE_IFACES}; do 105 if [ ${LINKNUM} != 0 ]; then 106 ngctl connect ${ETHER}: ${BRIDGE_NAME}: \ 107 lower link${LINKNUM} || exit 1 108 fi 109 LINKNUM=`expr ${LINKNUM} + 1` 110 done 111 | 101 LINKNUM=0 102 for ETHER in ${BRIDGE_IFACES}; do 103 if [ ${LINKNUM} != 0 ]; then 104 ngctl connect ${ETHER}: ${BRIDGE_NAME}: \ 105 lower link${LINKNUM} || exit 1 106 fi 107 LINKNUM=`expr ${LINKNUM} + 1` 108 done 109 |
| 112 # Hook up local interface, if any | 110 # Hook up local interface, if any. |
| 113 for LOCAL_IFACE in ${LOCAL_IFACES}; do 114 ngctl connect ${LOCAL_IFACE}: ${BRIDGE_NAME}: \ 115 upper link${LINKNUM} || exit 1 116 LINKNUM=`expr ${LINKNUM} + 1` 117 done 118 | 111 for LOCAL_IFACE in ${LOCAL_IFACES}; do 112 ngctl connect ${LOCAL_IFACE}: ${BRIDGE_NAME}: \ 113 upper link${LINKNUM} || exit 1 114 LINKNUM=`expr ${LINKNUM} + 1` 115 done 116 |
| 119 # Set all interfaces in promiscuous mode and don't overwrite src addr | 117 # Set all interfaces in promiscuous mode and don't overwrite src addr. |
| 120 for ETHER in ${BRIDGE_IFACES}; do 121 ngctl msg ${ETHER}: setpromisc 1 || exit 1 122 ngctl msg ${ETHER}: setautosrc 0 || exit 1 123 done 124} 125 | 118 for ETHER in ${BRIDGE_IFACES}; do 119 ngctl msg ${ETHER}: setpromisc 1 || exit 1 120 ngctl msg ${ETHER}: setautosrc 0 || exit 1 121 done 122} 123 |
| 126# Stop routine | 124# Stop routine. |
| 127bridge_stop() { 128 ngctl kill ${BRIDGE_NAME}: >/dev/null 2>&1 129 for ETHER in ${BRIDGE_IFACES} ${LOCAL_IFACES}; do 130 ngctl kill ${ETHER}: >/dev/null 2>&1 131 done 132} 133 | 125bridge_stop() { 126 ngctl kill ${BRIDGE_NAME}: >/dev/null 2>&1 127 for ETHER in ${BRIDGE_IFACES} ${LOCAL_IFACES}; do 128 ngctl kill ${ETHER}: >/dev/null 2>&1 129 done 130} 131 |
| 134# Stats routine | 132# Stats routine. |
| 135bridge_stats() { 136 | 133bridge_stats() { 134 |
| 137 # Make sure node exists | 135 # Make sure node exists. |
| 138 bridge_verify 139 140 echo "" 141 echo "Statistics for bridging network ${BRIDGE_NAME}:" 142 echo "" 143 LINKNUM=0 144 for ETHER in ${BRIDGE_IFACES}; do 145 echo "Network interface ${ETHER}:" 146 bridge_linkstats ${LINKNUM} 147 LINKNUM=`expr ${LINKNUM} + 1` 148 done 149 for LOCAL_IFACE in ${LOCAL_IFACES}; do 150 echo "Local host interface ${LOCAL_IFACE}:" 151 bridge_linkstats ${LINKNUM} 152 LINKNUM=`expr ${LINKNUM} + 1` 153 done 154} 155 | 136 bridge_verify 137 138 echo "" 139 echo "Statistics for bridging network ${BRIDGE_NAME}:" 140 echo "" 141 LINKNUM=0 142 for ETHER in ${BRIDGE_IFACES}; do 143 echo "Network interface ${ETHER}:" 144 bridge_linkstats ${LINKNUM} 145 LINKNUM=`expr ${LINKNUM} + 1` 146 done 147 for LOCAL_IFACE in ${LOCAL_IFACES}; do 148 echo "Local host interface ${LOCAL_IFACE}:" 149 bridge_linkstats ${LINKNUM} 150 LINKNUM=`expr ${LINKNUM} + 1` 151 done 152} 153 |
| 156# Main entry point | 154# Main entry point. |
| 157case $1 in 158 start) 159 bridge_start 160 ;; 161 stats) 162 bridge_verify 163 bridge_stats 164 ;; 165 stop) 166 bridge_verify 167 bridge_stop 168 ;; 169 *) | 155case $1 in 156 start) 157 bridge_start 158 ;; 159 stats) 160 bridge_verify 161 bridge_stats 162 ;; 163 stop) 164 bridge_verify 165 bridge_stop 166 ;; 167 *) |
| 170 echo "usage: ether.bridge [ start | stop | stats ]" | 168 echo "usage: $0 [ start | stop | stats ]" |
| 171 exit 1 172esac | 169 exit 1 170esac |
| 173 | |