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1#!/bin/sh
2#
3# chkconfig: 2345 11 89
4# description: Brings up and configures the ethernet bridge
5# processname: bridge
6
7# Source function library.
8. /etc/init.d/functions
9
10# Check that networking is up.
11if [ "$NETWORKING" = "no" ]
12then
13 exit 0
14fi
15
16RETVAL=0
17
18[ -f /etc/rsbridgeinit.conf ] && . /etc/rsbridgeinit.conf
19
20###### Sample of what /etc/rsbridgeinit.conf should look like
21# bridgeprefix="gbr"
22# #UPDATE_STRING=-b eth2 eth3
23# BRIDGES="0"
24# CSIF[0]="eth2"
25# SSIF[0]="eth3"
26##########################
27
28#Enable RSTP if we have /sbin/rstpd
29RSTPD=/sbin/rstpd
30RSTPCTL=/sbin/rstpctl
31RSTP=0
32[ -x $RSTPD -a -x $RSTPCTL ] && RSTP=1
33
34slaves () {
35 cat /proc/net/bonding/$1 | grep 'Slave Interface' | cut -d: -f2
36}
37
38# set interrupt affinity to first cpu
39setsmpaffinity() {
40 if [[ $1 == bond* ]] ; then
41 for sl in `slaves $1`; do
42 irq=`grep $sl /proc/interrupts | cut -d: -f1`
43 echo 1 > /proc/irq/$irq/smp_affinity
44 done
45 else
46 irq=`grep $1 /proc/interrupts | cut -d: -f1`
47 echo 1 > /proc/irq/$irq/smp_affinity
48 fi
49}
50
51start () {
52 [ $RSTP == 1 ] && echo Starting rstpd && daemon $RSTPD ">>" /var/log/rstpd.log "2>&1"
53 for b in $BRIDGES ; do
54 echo Starting service bridge $bridgeprefix$b
55 brctl addbr $bridgeprefix$b || RETVAL=1
56 if [ $RSTP == 0 ] ; then
57 brctl stp $bridgeprefix$b on
58 brctl setbridgeprio $bridgeprefix$b 65000
59 fi
60
61 for br in ${CSIF[$b]} ; do
62 echo Adding CSIF $br on $bridgeprefix$b
63 ifup $br
64 brctl addif $bridgeprefix$b $br || RETVAL=1
65 done
66
67 if [ "$1" != "client" ]; then
68 for br in ${SSIF[$b]} ; do
69 echo Adding SSIF $br on $bridgeprefix$b
70 ifup $br
71 if [[ $br == bond* ]] ; then
72 for sl in `slaves $br`; do
73 ifconfig $sl down
74 done
75 else
76 ifconfig $br down
77 fi
78 brctl addif $bridgeprefix$b $br || RETVAL=1
79 done
80 fi
81 ifup $bridgeprefix$b
82 if [ $RSTP == 1 ]; then
83 rstpctl rstp $bridgeprefix$b on
84 rstpctl setbridgeprio $bridgeprefix$b 61440
85 fi
86 done
87
88 for b in $BRIDGES ; do
89
90 . /etc/sysconfig/network-scripts/ifcfg-$bridgeprefix$b
91# We will always have the subnet route entry. If there is a default gateway
92# on that subnet, we will have an entry for that as well
93 if [ -n "$GATEWAY" ] ; then rttarget=2 ; else rttarget=1 ; fi
94 rtcount=x
95
96 count=1
97 while true ; do
98 new_rtcount=`grep -c $bridgeprefix$b /proc/net/route`;
99 if [ $new_rtcount != $rtcount ]; then
100#DEBUG echo Number of route entries for $bridgeprefix$b is $new_rtcount
101 rtcount=$new_rtcount
102 fi
103 if [ $rtcount == $rttarget ]; then
104#DEBUG echo Reached target for $bridgeprefix$b
105 break;
106 fi
107 count=`expr $count + 1`
108 if [ $count -gt 12 ]; then
109 echo Incomplete IP configuration for $bridgeprefix$b. Check network config. Aborting.
110 break;
111 fi
112 echo Incomplete IP configuration for $bridgeprefix$b. Waiting 5 seconds.
113 sleep 5
114 done
115 done
116}
117
118stop () {
119 for b in $BRIDGES ; do
120 echo "Shutting down service bridge $bridgeprefix$b"
121 for br in ${SSIF[$b]} ; do
122 echo Removing SSIF $br on $bridgeprefix$b
123 brctl delif $bridgeprefix$b $br || RETVAL=1
124 done
125 for br in ${CSIF[$b]} ; do
126 echo Removing CSIF $br on $bridgeprefix$b
127 brctl delif $bridgeprefix$b $br || RETVAL=1
128 done
129 ifconfig $bridgeprefix$b down || RETVAL=1
130 brctl delbr $bridgeprefix$b || RETVAL=1
131 done
132 [ $RSTP == 1 ] && killproc rstpd
133
134}
135
136serverif () {
137 case "$1" in
138 up)
139 for b in $BRIDGES ; do
140 for br in ${SSIF[$b]} ; do
141 echo Enabling $br on $bridgeprefix$b
142 if [[ $br == bond* ]] ; then
143 for sl in `slaves $br`; do
144 echo ' ' Enabling slave $sl of $br
145 ifconfig $sl up
146 done
147 else
148 ifconfig $br up
149 fi
150 done
151 done
152 ;;
153 down)
154 for b in $BRIDGES ; do
155 for br in ${SSIF[$b]} ; do
156 echo Disabling $br on $bridgeprefix$b
157 if [[ $br == bond* ]]; then
158 for sl in `slaves $br`; do
159 echo ' ' Disabling slave $sl of $br
160 ifconfig $sl down
161 done
162 else
163 ifconfig $br down
164 fi
165 done
166 done
167 ;;
168 *)
169 exit 1
170 esac
171}
172
173# See how we were called.
174case "$1" in
175 start)
176 start $2
177 ;;
178 stop)
179 stop $2
180 ;;
181 status)
182 for b in $BRIDGES ; do
183 ifconfig $bridgeprefix$b
184 brctl showstp $bridgeprefix$b
185 done
186 ;;
187 serverif)
188 serverif $2
189 ;;
190 restart|reload)
191 stop
192 start
193 ;;
194 *)
195 echo $"Usage: $0 {start|stop|status|restart|reload}"
196 exit 1
197esac
198
199exit $RETVAL