Here are some resource scripts to handle routing. IProute resource script will add or delete routes on startup IPrule resource script will add or delete ip rules on startup IProutesrc will change device route source on startup and remove it on stop.
IProutesrc is not able to handle defaultroute so IPsrcaddr is still needed for default route handling. -- Tuomo Soini <[EMAIL PROTECTED]> Linux and network services +358 40 5240030 Foobar Oy <http://foobar.fi/>
#!/bin/bash
#
# $Id: IProute,v 1.17 2004/06/10 10:10:46 tis Exp $
#
# Copyright (C) 2004 Tuomo Soini <[EMAIL PROTECTED]>
#
# This script manages static routes
#
# usage: $0 {add|del} {ifname} \
# {start|stop|restart|condrestart|status}
#
# Config file /etc/ha.d/route.d/route-{add|del}-{ifname}
#
# The "start" arg adds or removes static routes.
#
# Surprisingly, the "stop" may remove or add routes.
#
unset LANG
LC_ALL=C
export LC_ALL
# source function library
. /etc/ha.d/shellfuncs
IP2UTIL=/sbin/ip
VARLIB=/var/lib/heartbeat
VLDIR=$VARLIB/rsctmp/IProute
LOCKFILE=$VLDIR/route-$1-$2
RETVAL=0
doroute() {
rtype=$1
rcmd=$2
rif=$3
rc=0
if
[ -f /etc/ha.d/route.d/route-${rtype}-${rif} ]
then
cat /etc/ha.d/route.d/route-${rtype}-${rif} | grep -v '^#' \
| sed -e 's/#.*//' | while read line
do
if
[ "X$line" = "X" ]
then
: empty line
else
CMD="$IP2UTIL route ${rcmd} $line dev ${rif}"
if
$CMD
then
ha_log "info: IProute ${rtype}: $CMD"
else
ha_log "WARN: IProute ${rtype}: $CMD"
fi
fi
done
$IP2UTIL route flush cache
else
ha_log "ERROR: IProute ${rtype} config file \
/etc/ha.d/route.d/route-${rtype}-${rif} is missing"
rc=1
fi
return $rc
}
usage() {
echo "usage: $0 {add|del} {ifname} \\"
echo -e "\t{start|stop|restart|condrestart|status}"
exit 1
}
start() {
doroute $1 $2 $3
if
[ "$?" -eq 0 ]
then
if
[ -d $VLDIR ]
then
: vldir is there
else
mkdir -p $VLDIR
fi
touch "$LOCKFILE"
RETVAL=$?
else
RETVAL=1
fi
}
stop() {
doroute $1 $2 $3
if
[ "$?" -eq 0 ]
then
if
[ -d $VLDIR ]
then
: vldir is there
else
mkdir -p $VLDIR
fi
rm -f "$LOCKFILE"
RETVAL=$?
else
RETVAL=1
fi
}
restart() {
stop
start
}
if
[ $# -ne 3 ]
then
usage
fi
ROUTECMD="$1"
ROUTEIF="$2"
INITCMD="$3"
case "$INITCMD" in
start)
case "$ROUTECMD" in
add)
start $ROUTECMD add $ROUTEIF
;;
del)
start $ROUTECMD delete $ROUTEIF
;;
*)
usage
esac
;;
stop)
case "$ROUTECMD" in
add)
stop $ROUTECMD delete $ROUTEIF
;;
del)
stop $ROUTECMD add $ROUTEIF
;;
*)
usage
esac
;;
restart|force-reload)
restart
;;
reload)
;;
condrestart)
[ -f "$LOCKFILE" ] && restart
;;
status)
if [ -f $LOCKFILE ]; then
echo "IProute is running..."
RETVAL=0
else
echo "IProute is stopped"
RETVAL=3
fi
;;
*)
usage
esac
exit $RETVAL
# EOF
#!/bin/bash
#
# $Id: IProutesrc,v 1.11 2006/01/30 19:27:48 tis Exp $
#
# Copyright (C) 2006 Tuomo Soini <[EMAIL PROTECTED]>
#
# This script changes route source
#
# usage: $0 {ifname} {ipaddr/prefix} [rt_table] \
# {start|stop|restart|condrestart|status}
#
# The "start" arg changes route source or add route if missing.
#
# Surprisingly, the "stop" remove source from route.
#
unset LANG
LC_ALL=C
export LC_ALL
# source function library
. /etc/ha.d/shellfuncs
IP2UTIL=/sbin/ip
RETVAL=0
usage() {
echo "usage: $0 {ifname} {ipaddr/prefix} [rt_table] \\"
echo -e "\t{start|stop|restart|condrestart|status}"
exit 1
}
start() {
if
[ -n "$RTTABLE" ]
then
RTTABLE=" table $RTTABLE"
fi
$IP2UTIL route change ${NETWORK}/${PREFIX} dev ${ROUTEIF} \
$RTTABLE src $IPADDR 2>/dev/null
RETVAL=$?
if
[ "$RETVAL" -gt 0 ]
then
# Route seems to be missing. Create one
LOG="$($IP2UTIL route add ${NETWORK}/${PREFIX} dev
${ROUTEIF}${RTTABLE} src $IPADDR 2>&1)"
RETVAL=$?
if
[ "$RETVAL" -gt 0 ]
then
RETVAL=1
[ -z "$LOG" ] && LOG="Silent error"
ha_log "ERROR: cmd \"$IP2UTIL route add ${NETWORK}/${PREFIX}
dev ${ROUTEIF}${RTTABLE} src ${IPADDR}\" failed with error: \"$LOG\""
fi
fi
}
stop() {
if
[ -n "$RTTABLE" ]
then
RTTABLE=" table $RTTABLE"
fi
$IP2UTIL route change ${NETWORK}/${PREFIX} dev ${ROUTEIF}${RTTABLE}
2>/dev/null
RETVAL=$?
if
[ "$RETVAL" -gt 0 ]
then
# Route seems to be missing. Create one
LOG="$($IP2UTIL route add ${NETWORK}/${PREFIX} dev
${ROUTEIF}${RTTABLE} 2>&1)"
RETVAL=$?
if
[ "$RETVAL" -gt 0 ]
then
RETVAL=1
[ -z "$LOG" ] && LOG="Silent error"
ha_log "ERROR: cmd \"$IP2UTIL route add ${NETWORK}/${PREFIX}
dev ${ROUTEIF}${RTTABLE}\" failed with error: \"$LOG\""
fi
else
RETVAL=0
fi
}
parseroute() {
while [ $# -gt 0 ]
do
case $1 in
src)
SOURCE=$2
shift; shift
;;
*)
shift
;;
esac
done
}
status() {
if
[ -n "$RTTABLE" ]
then
RTTABLE=" table $RTTABLE"
fi
ROUTE="$($IP2UTIL route list ${NETWORK}/${PREFIX} dev
${ROUTEIF}${RTTABLE})"
parseroute $ROUTE
if
[ "$SOURCE" = "$IPADDR" ]
then
echo "IProutesrc is running..."
RETVAL=0
else
echo "IProutesrc is stopped"
RETVAL=3
fi
}
restart() {
stop
start
}
if
[ $# -eq 3 ]
then
ROUTEIF="$1"
# use /sbin/shorewall to calculate following variables:
# CIDR
# NETMASK
# NETOWORK
# BROADCAST
eval $(/sbin/shorewall ipcalc $2)
IPADDR=${CIDR%/*}
PREFIX=${CIDR#*/}
INITCMD="$3"
RTTABLE=
if
[ -z "$ROUTEIF" -o -z "$PREFIX" -o -z "$NETWORK" -o -z "$IPADDR" ]
then
usage
fi
else
if
[ $# -ne 4 ]
then
usage
fi
ROUTEIF="$1"
# use /sbin/shorewall to calculate following variables:
# CIDR
# NETMASK
# NETOWORK
# BROADCAST
eval $(/sbin/shorewall ipcalc $2)
IPADDR=${CIDR%/*}
PREFIX=${CIDR#*/}
RTTABLE="$3"
INITCMD="$4"
if
[ -z "$ROUTEIF" -o -z "$PREFIX" -o -z "$NETWORK" -o -z "$IPADDR" ]
then
usage
fi
fi
case "$INITCMD" in
start)
start
$IP2UTIL route flush cache
;;
stop)
stop
$IP2UTIL route flush cache
;;
restart|force-reload)
restart
$IP2UTIL route flush cache
;;
reload)
;;
condrestart)
restart
$IP2UTIL route flush cache
;;
status)
status
;;
*)
usage
esac
exit $RETVAL
# EOF
#!/bin/bash
#
# $Id: IPrule,v 1.5 2004/06/10 10:16:29 tis Exp $
#
# Copyright (C) 2004 Tuomo Soini <[EMAIL PROTECTED]>
#
# This script manages iproute2 rules
#
# usage: IPrule {add|del} {rulesetname} \
# {start|stop|restart|condrestart|status}
#
# Config file /etc/ha.d/route.d/rule-{add|del}-{rulesetname}
#
# The "start" arg adds or removes rules.
#
# Surprisingly, the "stop" may remove or add rules.
#
unset LANG
LC_ALL=C
export LC_ALL
# source function library
. /etc/ha.d/shellfuncs
IP2UTIL=/sbin/ip
VARLIB=/var/lib/heartbeat
VLDIR=$VARLIB/rsctmp/IPrule
LOCKFILE=$VLDIR/rule-$1-$2
RETVAL=0
dorule() {
rtype=$1
rcmd=$2
rset=$3
rc=0
if
[ -f /etc/ha.d/route.d/rule-${rtype}-${rset} ]
then
cat /etc/ha.d/route.d/rule-${rtype}-${rset} | grep -v '^#' \
| sed -e 's/#.*//' | while read line
do
if
[ "X$line" = "X" ]
then
: empty line
else
CMD="$IP2UTIL rule $rcmd $line"
if
$CMD
then
ha_log "info: IPrule ${rtype}: $CMD"
else
ha_log "WARN: IPrule ${rtype}: $CMD"
fi
fi
done
else
ha_log "ERROR: IPrule ${rtype}: config file \
/etc/ha.d/route.d/rule-${rtype}-${rset} is missing"
rc=1
fi
return $rc
}
usage() {
echo "usage: $0 {add|del} {rulesetname} \\"
echo -e "\t{start|stop|restart|condrestart|status}"
exit 1
}
start() {
dorule $1 $2 $3
if
[ "$?" -eq 0 ]
then
if
[ -d $VLDIR ]
then
: vldir is there
else
mkdir -p $VLDIR
fi
touch "$LOCKFILE"
RETVAL=$?
else
RETVAL=1
fi
}
stop() {
dorule $1 $2 $3
if
[ "$?" -eq 0 ]
then
if
[ -d $VLDIR ]
then
: vldir is there
else
mkdir -p $VLDIR
fi
rm -f "$LOCKFILE"
RETVAL=$?
else
RETVAL=1
fi
}
restart() {
stop
start
}
if
[ $# -ne 3 ]
then
usage
fi
RULECMD="$1"
RSETNAME="$2"
INITCMD="$3"
case "$INITCMD" in
start)
case "$RULECMD" in
add)
start $RULECMD add $RSETNAME
;;
del)
start $RULECMD delete $RSETNAME
;;
*)
usage
esac
;;
stop)
case "$RULECMD" in
add)
stop $RULECMD delete $RSETNAME
;;
del)
stop $RULECMD add $RSETNAME
;;
*)
usage
esac
;;
restart|force-reload)
restart
;;
reload)
;;
condrestart)
[ -f "$LOCKFILE" ] && restart
;;
status)
if [ -f $LOCKFILE ]; then
echo "IPrule is running..."
RETVAL=0
else
echo "IPrule is stopped"
RETVAL=3
fi
;;
*)
usage
esac
exit $RETVAL
# EOF
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