From 001c07499e7d548fd2d6f91bbe55518c0afdcfde Mon Sep 17 00:00:00 2001
From: "Philip H." <47042125+pheiduck@users.noreply.github.com>
Date: Mon, 25 Dec 2023 23:51:44 +0000
Subject: [PATCH] WireGuard.js: changes from
 https://github.com/wg-easy/wg-easy/pull/328

---
 src/lib/WireGuard.js | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/src/lib/WireGuard.js b/src/lib/WireGuard.js
index 96e628be..ef19cf27 100644
--- a/src/lib/WireGuard.js
+++ b/src/lib/WireGuard.js
@@ -60,12 +60,20 @@ module.exports = class WireGuard {
 
         await this.__saveConfig(config);
         await Util.exec('wg-quick down wg0').catch(() => { });
-        await Util.exec('wireguard-go wg0').catch((err) => {
+        await Util.exec('wg-quick up wg0').catch((err) => {
           if (err && err.message && err.message.includes('Cannot find device "wg0"')) {
-            throw new Error('WireGuard exited with the error: Cannot find device "wg0"\nThis usually means that your host\'s kernel does not support WireGuard!');
+            debug('WireGuard exited with the error: Cannot find device "wg0"\nThis usually means that your host\'s kernel does not support WireGuard! Trying to use wireguard-go implementation.');
+            Util.exec('cp -f /wireguard-go/wg /wireguard-go/wg-quick /wireguard-go/wireguard-go /usr/bin/').catch(() => { });
+            Util.exec('wg-quick up wg0').catch((err) => {
+              if (err && err.message && err.message.includes('Cannot find device "wg0"')) {
+                throw new Error('WireGuard exited with the error: Cannot find device "wg0"\nThis means, that even wireguard-go does not work!\nThis usually means that you didn\'t mounted /dev/net/tun to container properly!');
+              }
+
+              throw err;
+            });
+          } else {
+            throw err;
           }
-
-          throw err;
         });
         // await Util.exec(`iptables -t nat -A POSTROUTING -s ${WG_DEFAULT_ADDRESS.replace('x', '0')}/24 -o ' + WG_DEVICE + ' -j MASQUERADE`);
         // await Util.exec('iptables -A INPUT -p udp -m udp --dport 51820 -j ACCEPT');