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#!/bin/sh
#
# License: GNU General Public License (GPL)
# Support: linux-ha@lists.linux-ha.org
# Author: Huang Zhen <zhenhltc@cn.ibm.com>
# Copyright (c) 2006 International Business Machines
#
# Virtual IP Address by RIP2 protocol.
# This script manages IP alias in different subnet with quagga/ripd.
# It can add an IP alias, or remove one.
#
# The quagga package should be installed to run this RA
#
# usage: $0 {start|stop|status|monitor|validate-all|meta-data}
#
# The "start" arg adds an IP alias.
# Surprisingly, the "stop" arg removes one. :-)
#
# OCF parameters are as below
# OCF_RESKEY_ip The IP address in different subnet
# OCF_RESKEY_nic The nic for broadcast the route information
#
#######################################################################
# Initialization:
: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}
. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs
RIPDCONF=$HA_RSCTMP/VIPArip-ripd.conf
ZEBRA=/usr/sbin/zebra
RIPD=/usr/sbin/ripd
USAGE="usage: $0 {start|stop|status|monitor|validate-all|meta-data}";
#######################################################################
meta_data() {
cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="VIPArip">
<version>1.0</version>
<longdesc lang="en">
Virtual IP Address by RIP2 protocol.
This script manages IP alias in different subnet with quagga/ripd.
It can add an IP alias, or remove one.
</longdesc>
<shortdesc lang="en">Manages a virtual IP address through RIP2</shortdesc>
<parameters>
<parameter name="ip" unique="1" required="1">
<longdesc lang="en">
The IPv4 address in different subnet, for example "192.168.1.1".
</longdesc>
<shortdesc lang="en">The IP address in different subnet</shortdesc>
<content type="string" default="" />
</parameter>
<parameter name="nic" unique="0">
<longdesc lang="en">
The nic for broadcast the route information.
The ripd uses this nic to broadcast the route informaton to others
</longdesc>
<shortdesc lang="en">The nic for broadcast the route information</shortdesc>
<content type="string" default="eth0"/>
</parameter>
<parameter name="zebra_binary" unique="0">
<longdesc lang="en">
Absolute path to the zebra binary.
</longdesc>
<shortdesc lang="en">zebra binary</shortdesc>
<content type="string" default="$ZEBRA"/>
</parameter>
<parameter name="ripd_binary" unique="0">
<longdesc lang="en">
Absolute path to the ripd binary.
</longdesc>
<shortdesc lang="en">ripd binary</shortdesc>
<content type="string" default="$RIPD"/>
</parameter>
</parameters>
<actions>
<action name="start" timeout="20s" />
<action name="stop" timeout="20s" />
<action name="monitor" depth="0" timeout="20s" interval="5s" />
<action name="validate-all" timeout="20s" />
<action name="meta-data" timeout="5s" />
</actions>
</resource-agent>
END
exit $OCF_SUCCESS
}
usage() {
echo $USAGE >&2
}
new_config_file() {
echo new_config_file $1 $2 $3
cat >$RIPDCONF <<END
hostname ripd
password zebra
debug rip events
debug rip packet
debug rip zebra
log file /var/log/quagga/quagga.log
router rip
!nic_tag
no passive-interface $2
network $2
distribute-list private out $2
distribute-list private in $2
!metric_tag
redistribute connected metric $3
!ip_tag
access-list private permit $1/32
access-list private deny any
END
}
check_params() {
if [ x"$OCF_RESKEY_ip" = x ]
then
ocf_log err "ip is a required parameter"
exit $OCF_ERR_ARGS
fi
}
set_metric() {
echo set_metric $1
sed "s/redistribute connected metric .*/redistribute connected metric $1/g" $RIPDCONF > $RIPDCONF.tmp
cp $RIPDCONF.tmp $RIPDCONF
}
add_ip() {
echo add_ip $1
sed "s/ip_tag/ip_tag\naccess-list private permit $1\/32/g" $RIPDCONF > $RIPDCONF.tmp
cp $RIPDCONF.tmp $RIPDCONF
}
del_ip() {
echo del_ip $1
sed "/$1/d" $RIPDCONF > $RIPDCONF.tmp
cp $RIPDCONF.tmp $RIPDCONF
if $GREP "access-list private permit" $RIPDCONF>/dev/null
then
echo some other IP is running
reload_config
else
stop_quagga
echo remove $RIPDCONF
rm $RIPDCONF
fi
}
add_nic() {
echo add_nic $1
if $GREP "network $1" $RIPDCONF >/dev/null
then
echo the nic is already in the config file
else
sed "s/nic_tag/nic_tag\n no passive-interface $1\n network $1\n distribute-list private out $1\n distribute-list private in $1/g" $RIPDCONF > $RIPDCONF.tmp
cp $RIPDCONF.tmp $RIPDCONF
fi
}
reload_config() {
echo reload_config
echo $RIPDCONF:
cat $RIPDCONF
echo killall -SIGHUP ripd
killall -SIGHUP ripd
}
start_quagga() {
echo start_quagga
echo $RIPDCONF:
cat $RIPDCONF
echo $ZEBRA -d
$ZEBRA -d
echo $RIPD -d -f $RIPDCONF
$RIPD -d -f $RIPDCONF
}
stop_quagga() {
echo stop_quagga
echo $RIPDCONF:
cat $RIPDCONF
echo killall -SIGTERM ripd
killall -SIGTERM ripd
echo killall -SIGTERM zebra
killall -SIGTERM zebra
}
start_rip_ip() {
echo start_rip_ip
check_params
if [ x"$OCF_RESKEY_nic" = x ]
then
echo OCF_RESKEY_nic is null, set to eth0
OCF_RESKEY_nic="eth0"
fi
if $IP2UTIL addr | $GREP $OCF_RESKEY_ip >/dev/null
then
ocf_log err "Invalid OCF_RESKEY_ip [$OCF_RESKEY_ip]"
exit $OCF_ERR_ARGS
fi
$IP2UTIL addr add $OCF_RESKEY_ip/32 dev lo
if [ -f "$RIPDCONF" ]
then
# there is a config file, add new data(IP,nic,metric)
# to the existing config file.
add_ip $OCF_RESKEY_ip
add_nic $OCF_RESKEY_nic
set_metric 1
reload_config
echo sleep 3
sleep 3
set_metric 3
reload_config
else
new_config_file $OCF_RESKEY_ip $OCF_RESKEY_nic 1
start_quagga
echo sleep 3
sleep 3
set_metric 3
reload_config
fi
return $OCF_SUCCESS
}
stop_rip_ip() {
echo stop_rip_ip
check_params
status_rip_ip
if [ $? = $OCF_NOT_RUNNING ]
then
ocf_log err "Invalid OCF_RESKEY_ip [$OCF_RESKEY_ip]"
exit $OCF_ERR_ARGS
fi
$IP2UTIL addr del $OCF_RESKEY_ip dev lo
echo sleep 2
sleep 2
del_ip $OCF_RESKEY_ip
return $OCF_SUCCESS
}
status_rip_ip() {
check_params
if $IP2UTIL addr | $GREP $OCF_RESKEY_ip >/dev/null
then
if $GREP $OCF_RESKEY_ip $RIPDCONF >/dev/null
then
if pidof ripd >/dev/null
then
return $OCF_SUCCESS
fi
fi
fi
return $OCF_NOT_RUNNING
}
if
[ $# -ne 1 ]
then
usage
exit $OCF_ERR_ARGS
fi
[ x != x"$OCF_RESKEY_zebra_binary" ] &&
ZEBRA=$OCF_RESKEY_zebra_binary
[ x != x"$OCF_RESKEY_ripd_binary" ] &&
RIPD=$OCF_RESKEY_ripd_binary
case $1 in
start) start_rip_ip;;
stop) stop_rip_ip;;
status) status_rip_ip;;
monitor) status_rip_ip;;
validate-all) check_binary $IP2UTIL
exit $OCF_SUCCESS;;
meta-data) meta_data;;
usage) usage; exit $OCF_SUCCESS;;
*) usage
exit $OCF_ERR_ARGS
;;
esac

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VIPArip (6 KB)

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