From 6f87d8c910964fd0ebe9724183baa12861caa419 Mon Sep 17 00:00:00 2001
From: Christian Poessinger <christian@poessinger.com>
Date: Sun, 15 Aug 2021 12:53:03 +0200
Subject: ospf: T3757: support to configure area at an interface level

FRR supports configuring either network prefixes per area, or assign an
interface to an area to participate in the routing process. This is already well
known from other venders and supported by FRR.

A valid VyOS OSPF configuration would then look like:

vyos@vyos# show protocols
 ospf {
     interface dum0 {
         area 0
     }
     interface eth0.201 {
         area 0
         authentication {
             md5 {
                 key-id 10 {
                     md5-key vyos
                 }
             }
         }
         dead-interval 40
         hello-interval 10
         priority 1
         retransmit-interval 5
         transmit-delay 1
     }
     log-adjacency-changes {
         detail
     }
     parameters {
         abr-type cisco
         router-id 172.18.254.201
     }
     passive-interface default
     passive-interface-exclude eth0.201
 }
---
 .../include/ospf/protocol-common-config.xml.i           | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'interface-definitions/include/ospf')

diff --git a/interface-definitions/include/ospf/protocol-common-config.xml.i b/interface-definitions/include/ospf/protocol-common-config.xml.i
index db39b1a86..c4ca613a4 100644
--- a/interface-definitions/include/ospf/protocol-common-config.xml.i
+++ b/interface-definitions/include/ospf/protocol-common-config.xml.i
@@ -361,6 +361,23 @@
     </constraint>
   </properties>
   <children>
+    <leafNode name="area">
+      <properties>
+        <help>Enable OSPF on this interface</help>
+        <valueHelp>
+          <format>u32</format>
+          <description>OSPF area ID as decimal notation</description>
+        </valueHelp>
+        <valueHelp>
+          <format>ipv4</format>
+          <description>OSPF area ID in IP address notation</description>
+        </valueHelp>
+        <constraint>
+          <validator name="numeric" argument="--range 0-4294967295"/>
+          <validator name="ip-address"/>
+        </constraint>
+      </properties>
+    </leafNode>
     #include <include/ospf/authentication.xml.i>
     #include <include/ospf/intervals.xml.i>
     #include <include/ospf/interface-common.xml.i>
-- 
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