From 2918ab999cbcbe6bc04061dd070e5b0dd8465346 Mon Sep 17 00:00:00 2001
From: Damien Ciabrini <dciabrin@redhat.com>
Date: Wed, 26 Apr 2017 17:51:52 +0200
Subject: [PATCH] IPaddr2: add option for specifying IPv6's preferred_lft

This change allows setting the preferred_lft option when creating an
IPv6 address. This can be used to ensure that the created IP address
will not be used as a source address for routing.
---
 heartbeat/IPaddr2 | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/heartbeat/IPaddr2 b/heartbeat/IPaddr2
index 27b7208..2d2ba2c 100755
--- a/heartbeat/IPaddr2
+++ b/heartbeat/IPaddr2
@@ -56,6 +56,7 @@
 #	OCF_RESKEY_arp_count
 #	OCF_RESKEY_arp_bg
 #	OCF_RESKEY_arp_mac
+#	OCF_RESKEY_preferred_lft
 #
 #	OCF_RESKEY_CRM_meta_clone
 #	OCF_RESKEY_CRM_meta_clone_max
@@ -80,6 +81,7 @@ OCF_RESKEY_arp_count_refresh_default=0
 OCF_RESKEY_arp_count_default=5
 OCF_RESKEY_arp_bg_default=true
 OCF_RESKEY_arp_mac_default="ffffffffffff"
+OCF_RESKEY_preferred_lft_default="forever"
 
 : ${OCF_RESKEY_lvs_support=${OCF_RESKEY_lvs_support_default}}
 : ${OCF_RESKEY_lvs_ipv6_addrlabel=${OCF_RESKEY_lvs_ipv6_addrlabel_default}}
@@ -92,6 +94,7 @@
 : ${OCF_RESKEY_arp_count=${OCF_RESKEY_arp_count_default}
 : ${OCF_RESKEY_arp_bg=${OCF_RESKEY_arp_bg_default}}
 : ${OCF_RESKEY_arp_mac=${OCF_RESKEY_arp_mac_default}}
+: ${OCF_RESKEY_preferred_lft=${OCF_RESKEY_preferred_lft_default}}
 #######################################################################
 
 SENDARP=$HA_BIN/send_arp
@@ -350,6 +353,17 @@ Whether or not to run arping for IPv4 collision detection check.
 <content type="string" default="${OCF_RESKEY_run_arping_default}"/>
 </parameter>
 
+<parameter name="preferred_lft">
+<longdesc lang="en">
+For IPv6, set the preferred lifetime of the IP address.
+This can be used to ensure that the created IP address will not
+be used as a source address for routing.
+Expects a value as specified in section 5.5.4 of RFC 4862.
+</longdesc>
+<shortdesc lang="en">IPv6 preferred lifetime</shortdesc>
+<content type="string" default="${OCF_RESKEY_preferred_lft_default}"/>
+</parameter>
+
 </parameters>
 <actions>
 <action name="start"   timeout="20s" />
@@ -590,6 +604,10 @@ add_interface () {
 		cmd="$cmd label $label"
 		msg="${msg} (with label $label)"
 	fi
+	if [ "$FAMILY" = "inet6" ] ;then
+		cmd="$cmd preferred_lft $OCF_RESKEY_preferred_lft"
+		msg="${msg} (with preferred_lft $OCF_RESKEY_preferred_lft)"
+	fi
 
 	ocf_log info "$msg"
 	ocf_run $cmd || return $OCF_ERR_GENERIC
@@ -1076,6 +1094,11 @@ ip_validate() {
 	exit $OCF_ERR_CONFIGURED
     fi
 
+    if [ -z "$OCF_RESKEY_preferred_lft" ]; then
+	ocf_exit_reason "Empty value is invalid for OCF_RESKEY_preferred_lft"
+	exit $OCF_ERR_CONFIGURED
+    fi
+
     if [ -n "$IP_CIP" ]; then
 
 	local valid=1