From 37696d6cabe1adc5e095d84f90ff086e60387bbd Mon Sep 17 00:00:00 2001
From: Ad Schellevis <ad@opnsense.org>
Date: Wed, 1 May 2024 11:27:17 +0200
Subject: [PATCH] VPN: WireGuard: Peer generator - add MTU when set on the
 instance, closes https://github.com/opnsense/core/issues/7422

---
 .../controllers/OPNsense/Wireguard/Api/ClientController.php   | 1 +
 src/opnsense/mvc/app/views/OPNsense/Wireguard/general.volt    | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/src/opnsense/mvc/app/controllers/OPNsense/Wireguard/Api/ClientController.php b/src/opnsense/mvc/app/controllers/OPNsense/Wireguard/Api/ClientController.php
index 84180dd62..dd96c4c7c 100644
--- a/src/opnsense/mvc/app/controllers/OPNsense/Wireguard/Api/ClientController.php
+++ b/src/opnsense/mvc/app/controllers/OPNsense/Wireguard/Api/ClientController.php
@@ -187,6 +187,7 @@ class ClientController extends ApiMutableModelControllerBase
                     $peers = array_filter(explode(',', (string)$node->peers));
                     $result['endpoint'] = (string)$node->endpoint;
                     $result['peer_dns'] = (string)$node->peer_dns;
+                    $result['mtu'] = (string)$node->mtu;
                     $result['pubkey'] = (string)$node->pubkey;
                     foreach (array_filter(explode(',', (string)$node->tunneladdress)) as $addr) {
                         $proto = str_contains($addr, ':') ? 'inet6' : 'inet';
diff --git a/src/opnsense/mvc/app/views/OPNsense/Wireguard/general.volt b/src/opnsense/mvc/app/views/OPNsense/Wireguard/general.volt
index 6d70e3291..e7b8b128f 100644
--- a/src/opnsense/mvc/app/views/OPNsense/Wireguard/general.volt
+++ b/src/opnsense/mvc/app/views/OPNsense/Wireguard/general.volt
@@ -145,6 +145,7 @@
                     endpoint
                         .val(data.endpoint)
                         .data('org-value', data.endpoint)
+                        .data('mtu', data.mtu)
                         .data('pubkey', data.pubkey)
                         .change();
                 }
@@ -218,6 +219,9 @@
             if ($("#configbuilder\\.peer_dns").val()) {
                 rows.push('DNS = ' + $("#configbuilder\\.peer_dns").val());
             }
+            if ($("#configbuilder\\.endpoint").data('mtu')) {
+                rows.push('MTU = ' + $("#configbuilder\\.endpoint").data('mtu'));
+            }
             rows.push('');
             rows.push('[Peer]');
             rows.push('PublicKey = ' + $("#configbuilder\\.endpoint").data('pubkey'));