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resource-agents/SOURCES/bz1744224-IPsrcaddr-1-add-d...

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--- ClusterLabs-resource-agents-e711383f/heartbeat/IPsrcaddr 2019-08-15 16:02:10.055827624 +0200
+++ /home/oalbrigt/src/resource-agents/heartbeat/IPsrcaddr 2019-08-15 15:45:50.690757838 +0200
@@ -1,6 +1,6 @@
#!/bin/sh
#
-# Description: IPsrcaddr - Preferred source address modification
+# Description: IPsrcaddr - Preferred source(/dest) address modification
#
# Author: John Sutton <john@scl.co.uk>
# Support: users@clusterlabs.org
@@ -11,7 +11,7 @@
#
# This script manages the preferred source address associated with
# packets which originate on the localhost and are routed through the
-# default route. By default, i.e. without the use of this script or
+# matching route. By default, i.e. without the use of this script or
# similar, these packets will carry the IP of the primary i.e. the
# non-aliased interface. This can be a nuisance if you need to ensure
# that such packets carry the same IP irrespective of which host in
@@ -27,7 +27,7 @@
#
# NOTES:
#
-# 1) There must be one and not more than 1 default route! Mainly because
+# 1) There must be one and not more than 1 matching route! Mainly because
# I can't see why you should have more than one. And if there is more
# than one, we would have to box clever to find out which one is to be
# modified, or we would have to pass its identity as an argument.
@@ -54,16 +54,25 @@
. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs
# Defaults
+OCF_RESKEY_ipaddress_default=""
+OCF_RESKEY_cidr_netmask_default=""
+OCF_RESKEY_destination_default="0.0.0.0/0"
OCF_RESKEY_proto_default=""
+OCF_RESKEY_table_default=""
+: ${OCF_RESKEY_ipaddress=${OCF_RESKEY_ipaddress_default}}
+: ${OCF_RESKEY_cidr_netmask=${OCF_RESKEY_cidr_netmask_default}}
+: ${OCF_RESKEY_destination=${OCF_RESKEY_destination_default}}
: ${OCF_RESKEY_proto=${OCF_RESKEY_proto_default}}
+: ${OCF_RESKEY_table=${OCF_RESKEY_table_default}}
#######################################################################
[ -z "$OCF_RESKEY_proto" ] && PROTO="" || PROTO="proto $OCF_RESKEY_proto"
+[ -z "$OCF_RESKEY_table" ] && TABLE="" || TABLE="table $OCF_RESKEY_table"
USAGE="usage: $0 {start|stop|status|monitor|validate-all|meta-data}";
- CMDSHOW="$IP2UTIL route show to exact 0.0.0.0/0"
+ CMDSHOW="$IP2UTIL route show $TABLE to exact $OCF_RESKEY_destination"
CMDCHANGE="$IP2UTIL route change to "
SYSTYPE="`uname -s`"
@@ -91,7 +100,7 @@
The IP address.
</longdesc>
<shortdesc lang="en">IP address</shortdesc>
-<content type="string" default="" />
+<content type="string" default="${OCF_RESKEY_ipaddress_default}" />
</parameter>
<parameter name="cidr_netmask">
@@ -100,7 +109,15 @@
dotted quad notation 255.255.255.0).
</longdesc>
<shortdesc lang="en">Netmask</shortdesc>
-<content type="string" default=""/>
+<content type="string" default="${OCF_RESKEY_cidr_netmask_default}"/>
+</parameter>
+
+<parameter name="destination">
+<longdesc lang="en">
+The destination IP/subnet for the route (default: $OCF_RESKEY_destination_default)
+</longdesc>
+<shortdesc lang="en">Destination IP/subnet</shortdesc>
+<content type="string" default="${OCF_RESKEY_destination_default}" />
</parameter>
<parameter name="proto">
@@ -108,7 +125,17 @@
Proto to match when finding network. E.g. "kernel".
</longdesc>
<shortdesc lang="en">Proto</shortdesc>
-<content type="string" default="" />
+<content type="string" default="${OCF_RESKEY_proto_default}" />
+</parameter>
+
+<parameter name="table">
+<longdesc lang="en">
+Table to modify. E.g. "local".
+
+The table has to have a route matching the "destination" parameter.
+</longdesc>
+<shortdesc lang="en">Table</shortdesc>
+<content type="string" default="${OCF_RESKEY_table_default}" />
</parameter>
</parameters>
@@ -151,21 +178,22 @@
export OCF_RESKEY_ip=$OCF_RESKEY_ipaddress
srca_read() {
- # Capture the default route - doublequotes prevent word splitting...
- DEFROUTE="`$CMDSHOW`" || errorexit "command '$CMDSHOW' failed"
-
- # ... so we can make sure there is only 1 default route
- [ 1 -eq `echo "$DEFROUTE" | wc -l` ] || \
- errorexit "more than 1 default route exists"
+ # Capture matching route - doublequotes prevent word splitting...
+ ROUTE="`$CMDSHOW`" || errorexit "command '$CMDSHOW' failed"
- # But there might still be no default route
- [ -z "$DEFROUTE" ] && errorexit "no default route exists"
+ # ... so we can make sure there is only 1 matching route
+ [ 1 -eq `echo "$ROUTE" | wc -l` ] || \
+ errorexit "more than 1 matching route exists"
+
+ # But there might still be no matching route
+ [ "$OCF_RESKEY_destination" = "0.0.0.0/0" ] && [ -z "$ROUTE" ] && \
+ ! ocf_is_probe && errorexit "no matching route exists"
# Sed out the source ip address if it exists
- SRCIP=`echo $DEFROUTE | sed -n "s/$MATCHROUTE/\3/p"`
+ SRCIP=`echo $ROUTE | sed -n "s/$MATCHROUTE/\3/p"`
# and what remains after stripping out the source ip address clause
- ROUTE_WO_SRC=`echo $DEFROUTE | sed "s/$MATCHROUTE/\1\5/"`
+ ROUTE_WO_SRC=`echo $ROUTE | sed "s/$MATCHROUTE/\1\5/"`
[ -z "$SRCIP" ] && return 1
[ $SRCIP = $1 ] && return 0
@@ -185,11 +213,13 @@
rc=$OCF_SUCCESS
ocf_log info "The ip route has been already set.($NETWORK, $INTERFACE, $ROUTE_WO_SRC)"
else
- $IP2UTIL route replace $NETWORK dev $INTERFACE src $1 || \
- errorexit "command 'ip route replace $NETWORK dev $INTERFACE src $1' failed"
+ $IP2UTIL route replace $TABLE $NETWORK dev $INTERFACE src $1 || \
+ errorexit "command 'ip route replace $TABLE $NETWORK dev $INTERFACE src $1' failed"
- $CMDCHANGE $ROUTE_WO_SRC src $1 || \
- errorexit "command '$CMDCHANGE $ROUTE_WO_SRC src $1' failed"
+ if [ "$OCF_RESKEY_destination" = "0.0.0.0/0" ] ;then
+ $CMDCHANGE $ROUTE_WO_SRC src $1 || \
+ errorexit "command '$CMDCHANGE $ROUTE_WO_SRC src $1' failed"
+ fi
rc=$?
fi
@@ -201,7 +231,7 @@
# If one exists but it's not the same as the one specified, that's
# an error. Maybe that's the wrong behaviour because if this fails
# then when IPaddr releases the associated interface (if there is one)
-# your default route will also get dropped ;-(
+# your matching route will also get dropped ;-(
# The exit code should conform to LSB exit codes.
#
@@ -217,11 +247,13 @@
[ $rc = 2 ] && errorexit "The address you specified to stop does not match the preferred source address"
- $IP2UTIL route replace $NETWORK dev $INTERFACE || \
- errorexit "command 'ip route replace $NETWORK dev $INTERFACE' failed"
+ $IP2UTIL route replace $TABLE $NETWORK dev $INTERFACE || \
+ errorexit "command 'ip route replace $TABLE $NETWORK dev $INTERFACE' failed"
- $CMDCHANGE $ROUTE_WO_SRC || \
- errorexit "command '$CMDCHANGE $ROUTE_WO_SRC' failed"
+ if [ "$OCF_RESKEY_destination" = "0.0.0.0/0" ] ;then
+ $CMDCHANGE $ROUTE_WO_SRC || \
+ errorexit "command '$CMDCHANGE $ROUTE_WO_SRC' failed"
+ fi
return $?
}
@@ -406,6 +438,10 @@
return $OCF_ERR_CONFIGURED
fi
+ if ! echo "$OCF_RESKEY_destination" | grep -q "/"; then
+ return $OCF_ERR_CONFIGURED
+ fi
+
if ! [ "x$SYSTYPE" = "xLinux" ]; then
# checks after this point are only relevant for linux.
@@ -486,7 +522,11 @@
}
INTERFACE=`echo $findif_out | awk '{print $1}'`
-NETWORK=`$IP2UTIL route list dev $INTERFACE scope link $PROTO match $ipaddress|grep -m 1 -o '^[^ ]*'`
+if [ "$OCF_RESKEY_destination" = "0.0.0.0/0" ] ;then
+ NETWORK=`$IP2UTIL route list dev $INTERFACE scope link $PROTO match $ipaddress|grep -m 1 -o '^[^ ]*'`
+else
+ NETWORK="$OCF_RESKEY_destination"
+fi
case $1 in
start) srca_start $ipaddress
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