From c11daec3b06aaeaa0647fa13a3375e422b54735c Mon Sep 17 00:00:00 2001
From: Viacheslav Hletenko <v.gletenko@vyos.io>
Date: Wed, 26 Mar 2025 10:06:20 +0000
Subject: T7286: Add CLI option to disable LDP establish packets

If a router has not formed an LDP neighbor adjacency yet, it
answers all received LDP Hello packets from non-neighbors with
new Hello packets.
This leads to flooding LDP packets to all routers for each LDP
incoming packet.

Add configuration option to disable this behavior

```
set protocols mpls ldp interface eth0 disable-establish-hello
```
---
 interface-definitions/protocols_mpls.xml.in | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

(limited to 'interface-definitions')

diff --git a/interface-definitions/protocols_mpls.xml.in b/interface-definitions/protocols_mpls.xml.in
index 831601fc6..fc1864f38 100644
--- a/interface-definitions/protocols_mpls.xml.in
+++ b/interface-definitions/protocols_mpls.xml.in
@@ -524,7 +524,29 @@
                   </node>
                 </children>
               </node>
-              #include <include/generic-interface-multi.xml.i>
+              <tagNode name="interface">
+                <properties>
+                  <help>Interface</help>
+                  <completionHelp>
+                    <script>${vyos_completion_dir}/list_interfaces</script>
+                  </completionHelp>
+                  <valueHelp>
+                    <format>txt</format>
+                    <description>Interface name</description>
+                  </valueHelp>
+                  <constraint>
+                    #include <include/constraint/interface-name.xml.i>
+                  </constraint>
+                </properties>
+                <children>
+                  <leafNode name="disable-establish-hello">
+                    <properties>
+                      <help>Disable response to hello packet with an additional hello LDP packet</help>
+                      <valueless/>
+                    </properties>
+                  </leafNode>
+                </children>
+              </tagNode>
             </children>
           </node>
           <node name="parameters">
-- 
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