1#!/bin/sh
| 1#!/bin/sh
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2# $FreeBSD: head/share/examples/netgraph/ether.bridge 156313 2006-03-05 15:53:07Z schweikh $
| 2# $FreeBSD: head/share/examples/netgraph/ether.bridge 222179 2011-05-22 14:23:48Z uqs $
|
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.
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.
18#
19# 4. Examine bridging statistics by running this script with "stats"
20# as the command line argument.
21#
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# If you just want a normal bridge, just one will be enough.
31# In some cases you may want some combination.
32#
33
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}
| 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.
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.
18#
19# 4. Examine bridging statistics by running this script with "stats"
20# as the command line argument.
21#
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# If you just want a normal bridge, just one will be enough.
31# In some cases you may want some combination.
32#
33
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}
|
43# then assign it the emtpy string.
| 43# then assign it the empty string.
|
44
45BRIDGE_IFACES="de0 fxp0 fxp1"
46LOCAL_IFACES="fxp0 fxp1"
47
48#####################################################################
49#### Everything below this point should not need to be modified. ####
50#####################################################################
51
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
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
71# Start/restart routine.
72bridge_start() {
73
74 # Load netgraph KLD's as necessary.
75 for KLD in ng_ether ng_bridge; do
76 if ! kldstat -v | grep -qw ${KLD}; then
77 echo -n "Loading ${KLD}.ko... "
78 kldload ${KLD} || exit 1
79 echo "done"
80 fi
81 done
82
83 # Reset all interfaces.
84 bridge_stop
85
86 # Verify all interfaces exist.
87 for ETHER in ${BRIDGE_IFACES} ${LOCAL_IFACES}; do
88 if ! ngctl info ${ETHER}: >/dev/null 2>&1; then
89 echo "Error: interface ${ETHER} does not exist"
90 exit 1
91 fi
92 ifconfig ${ETHER} up || exit 1
93 done
94
95 # Create new ng_bridge(4) node, attached to the first interface.
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
100 # Attach other interfaces as well.
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
110 # Hook up local interface, if any.
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
117 # Set all interfaces in promiscuous mode and don't overwrite src addr.
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
124# Stop routine.
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
132# Stats routine.
133bridge_stats() {
134
135 # Make sure node exists.
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
154# Main entry point.
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 *)
168 echo "usage: $0 [ start | stop | stats ]"
169 exit 1
170esac
| 44
45BRIDGE_IFACES="de0 fxp0 fxp1"
46LOCAL_IFACES="fxp0 fxp1"
47
48#####################################################################
49#### Everything below this point should not need to be modified. ####
50#####################################################################
51
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
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
71# Start/restart routine.
72bridge_start() {
73
74 # Load netgraph KLD's as necessary.
75 for KLD in ng_ether ng_bridge; do
76 if ! kldstat -v | grep -qw ${KLD}; then
77 echo -n "Loading ${KLD}.ko... "
78 kldload ${KLD} || exit 1
79 echo "done"
80 fi
81 done
82
83 # Reset all interfaces.
84 bridge_stop
85
86 # Verify all interfaces exist.
87 for ETHER in ${BRIDGE_IFACES} ${LOCAL_IFACES}; do
88 if ! ngctl info ${ETHER}: >/dev/null 2>&1; then
89 echo "Error: interface ${ETHER} does not exist"
90 exit 1
91 fi
92 ifconfig ${ETHER} up || exit 1
93 done
94
95 # Create new ng_bridge(4) node, attached to the first interface.
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
100 # Attach other interfaces as well.
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
110 # Hook up local interface, if any.
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
117 # Set all interfaces in promiscuous mode and don't overwrite src addr.
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
124# Stop routine.
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
132# Stats routine.
133bridge_stats() {
134
135 # Make sure node exists.
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
154# Main entry point.
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 *)
168 echo "usage: $0 [ start | stop | stats ]"
169 exit 1
170esac
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