From 2f4466802d5448ecee59009686ed7c49c6a392d7 Mon Sep 17 00:00:00 2001
From: Christian Poessinger <christian@poessinger.com>
Date: Sun, 26 Sep 2021 19:24:47 +0200
Subject: vxlan: T3867: add multicast validator for group address

The group CLI node takes a multicast IPv4 or IPv6 address - this must be input
validated to not case any OS exception

cpo@LR1.wue3# show interfaces vxlan
 vxlan vxlan0 {
+    group 254.0.0.1
     source-address 172.18.254.201
+    source-interface dum0
     vni 10
 }

Results in OSError beeing rasied with the following context:
  Error: argument "254.0.0.1" is wrong: invalid group address

(cherry picked from commit 0d7cd4ed5725d3e79faad5abc0801631c2ffc813)
---
 interface-definitions/interfaces-vxlan.xml.in | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'interface-definitions/interfaces-vxlan.xml.in')

diff --git a/interface-definitions/interfaces-vxlan.xml.in b/interface-definitions/interfaces-vxlan.xml.in
index a637baf3f..6dcc3f5a0 100644
--- a/interface-definitions/interfaces-vxlan.xml.in
+++ b/interface-definitions/interfaces-vxlan.xml.in
@@ -31,8 +31,10 @@
                 <description>Multicast IPv6 group address</description>
               </valueHelp>
               <constraint>
-                <validator name="ip-address"/>
+                <validator name="ipv4-multicast"/>
+                <validator name="ipv6-multicast"/>
               </constraint>
+              <constraintErrorMessage>Multicast IPv4/IPv6 address required</constraintErrorMessage>
             </properties>
           </leafNode>
           #include <include/interface/ipv4-options.xml.i>
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