Blame SOURCES/bz2055016-4-IPsrcaddr-fixes.patch

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From 50a596bfb977b18902dc62b99145bbd1a087690a Mon Sep 17 00:00:00 2001
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From: Oyvind Albrigtsen <oalbrigt@redhat.com>
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Date: Tue, 1 Mar 2022 11:06:07 +0100
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Subject: [PATCH] IPsrcaddr: fixes
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- use findif.sh to detect secondary interfaces
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- get metric and proto to update the correct route/update it correctly
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- match route using interface to fail when trying to update secondary
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  interfaces without specifying destination (would update default route
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  before)
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- also use PRIMARY_IP/OPTS during stop-action for default routes (to get
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  back to the exact routes we started with)
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- dont fail during stop-action if route doesnt exist
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- use [[:blank:]] for WS to follow POSIX standard (suggested by nrwahl)
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---
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 heartbeat/IPsrcaddr | 35 +++++++++++++++++++----------------
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 1 file changed, 19 insertions(+), 16 deletions(-)
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diff --git a/heartbeat/IPsrcaddr b/heartbeat/IPsrcaddr
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index c82adc0e9..7dbf65ff5 100755
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--- a/heartbeat/IPsrcaddr
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+++ b/heartbeat/IPsrcaddr
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@@ -52,6 +52,7 @@
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 # Initialization:
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 : ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}
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 . ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs
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+. ${OCF_FUNCTIONS_DIR}/findif.sh
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 # Defaults
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 OCF_RESKEY_ipaddress_default=""
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@@ -181,19 +182,21 @@ errorexit() {
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 #
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 #	where the src clause "src Y.Y.Y.Y" may or may not be present
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-WS="[`echo -en ' \t'`]"
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+WS="[[:blank:]]"
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 OCTET="[0-9]\{1,3\}"
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 IPADDR="\($OCTET\.\)\{3\}$OCTET"
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 SRCCLAUSE="src$WS$WS*\($IPADDR\)"
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 MATCHROUTE="\(.*${WS}\)\($SRCCLAUSE\)\($WS.*\|$\)"
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-FINDIF=$HA_BIN/findif
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+METRICCLAUSE=".*\(metric$WS[^ ]\+\)"
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+PROTOCLAUSE=".*\(proto$WS[^ ]\+\)"
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+FINDIF=findif
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 # findif needs that to be set
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 export OCF_RESKEY_ip=$OCF_RESKEY_ipaddress
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 srca_read() {
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 	# Capture matching route - doublequotes prevent word splitting...
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-	ROUTE="`$CMDSHOW 2> /dev/null`" || errorexit "command '$CMDSHOW' failed"
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+	ROUTE="`$CMDSHOW dev $INTERFACE 2> /dev/null`" || errorexit "command '$CMDSHOW' failed"
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 	# ... so we can make sure there is only 1 matching route
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 	[ 1 -eq `echo "$ROUTE" | wc -l` ] || \
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@@ -201,7 +204,7 @@ srca_read() {
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 	# But there might still be no matching route
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 	[ "$OCF_RESKEY_destination" = "0.0.0.0/0" ] && [ -z "$ROUTE" ] && \
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-		 ! ocf_is_probe && errorexit "no matching route exists"
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+		 ! ocf_is_probe && [ "$__OCF_ACTION" != stop ] && errorexit "no matching route exists"
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 	# Sed out the source ip address if it exists
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 	SRCIP=`echo $ROUTE | sed -n "s/$MATCHROUTE/\3/p"`
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@@ -232,8 +235,8 @@ srca_start() {
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 		rc=$OCF_SUCCESS
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 		ocf_log info "The ip route has been already set.($NETWORK, $INTERFACE, $ROUTE_WO_SRC)"
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 	else
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-		$IP2UTIL route replace $TABLE $NETWORK dev $INTERFACE src $1 || \
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-			errorexit "command 'ip route replace $TABLE $NETWORK dev $INTERFACE src $1' failed"
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+		$IP2UTIL route replace $TABLE $NETWORK dev $INTERFACE $PROTO src $1 $METRIC || \
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+			errorexit "command 'ip route replace $TABLE $NETWORK dev $INTERFACE $PROTO src $1 $METRIC' failed"
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 		if [ "$OCF_RESKEY_destination" = "0.0.0.0/0" ] ;then
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 			$CMDCHANGE $ROUTE_WO_SRC src $1 || \
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@@ -266,14 +269,11 @@ srca_stop() {
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 	[ $rc = 2 ] && errorexit "The address you specified to stop does not match the preferred source address"
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-	OPTS=""
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-	if [ "$OCF_RESKEY_destination" != "0.0.0.0/0" ] ;then
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-		PRIMARY_IP="$($IP2UTIL -4 -o addr show dev $INTERFACE primary | awk '{split($4,a,"/");print a[1]}')"
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-		OPTS="proto kernel scope host src $PRIMARY_IP"
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-	fi
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+	PRIMARY_IP="$($IP2UTIL -4 -o addr show dev $INTERFACE primary | awk '{split($4,a,"/");print a[1]}')"
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+	OPTS="proto kernel scope link src $PRIMARY_IP"
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-	$IP2UTIL route replace $TABLE $NETWORK dev $INTERFACE $OPTS || \
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-		errorexit "command 'ip route replace $TABLE $NETWORK dev $INTERFACE $OPTS' failed"
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+	$IP2UTIL route replace $TABLE $NETWORK dev $INTERFACE $OPTS $METRIC || \
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+		errorexit "command 'ip route replace $TABLE $NETWORK dev $INTERFACE $OPTS $METRIC' failed"
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 	if [ "$OCF_RESKEY_destination" = "0.0.0.0/0" ] ;then
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 		$CMDCHANGE $ROUTE_WO_SRC || \
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@@ -539,16 +539,19 @@ if [ $rc -ne $OCF_SUCCESS ]; then
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 	esac
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 fi
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-findif_out=`$FINDIF -C`
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+findif_out=`$FINDIF`
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 rc=$?
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 [ $rc -ne 0 ] && {
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-	ocf_exit_reason "[$FINDIF -C] failed"
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+	ocf_exit_reason "[$FINDIF] failed"
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 	exit $rc
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 }
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 INTERFACE=`echo $findif_out | awk '{print $1}'`
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+LISTROUTE=`$IP2UTIL route list dev $INTERFACE scope link $PROTO match $ipaddress`
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+METRIC=`echo $LISTROUTE | sed -n "s/$METRICCLAUSE/\1/p"`
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+[ -z "$PROTO" ] && PROTO=`echo $LISTROUTE | sed -n "s/$PROTOCLAUSE/\1/p"`
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 if [ "$OCF_RESKEY_destination" = "0.0.0.0/0" ] ;then
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-	NETWORK=`$IP2UTIL route list dev $INTERFACE scope link $PROTO match $ipaddress|grep -m 1 -o '^[^ ]*'`
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+	NETWORK=`echo $LISTROUTE | grep -m 1 -o '^[^ ]*'`
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 	if [ -z "$NETWORK" ]; then
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 		err_str="command '$IP2UTIL route list dev $INTERFACE scope link $PROTO"