From 839f1792e46caade579e8ffc848bfbc593444ad7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=B8=96=E7=95=8C?= <i@sekai.icu>
Date: Mon, 13 Mar 2023 19:36:43 +0800
Subject: [PATCH] Fix close platform tun

---
 tun_linux.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tun_linux.go b/tun_linux.go
index ca582a5..3085929 100644
--- a/tun_linux.go
+++ b/tun_linux.go
@@ -525,6 +525,9 @@ func (t *NativeTun) setRules() error {
 }
 
 func (t *NativeTun) unsetRoute() error {
+	if t.options.FileDescriptor > 0 {
+		return nil
+	}
 	tunLink, err := netlink.LinkByName(t.options.Name)
 	if err != nil {
 		return err
@@ -540,6 +543,9 @@ func (t *NativeTun) unsetRoute0(tunLink netlink.Link) error {
 }
 
 func (t *NativeTun) unsetRules() error {
+	if t.options.FileDescriptor > 0 {
+		return nil
+	}
 	if len(t.ruleIndex6) > 0 {
 		for _, index := range t.ruleIndex6 {
 			ruleToDel := netlink.NewRule()