From b22eeb86e29fdf964454902a7a50949033ddc702 Mon Sep 17 00:00:00 2001
From: gVisor bot <gvisor-bot@google.com>
Date: Thu, 9 Dec 2021 22:52:11 +0800
Subject: [PATCH] [Fixed] Add retry to open tun

---
 listener/tun/tun_adapter.go | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/listener/tun/tun_adapter.go b/listener/tun/tun_adapter.go
index ce771c42..3f232dab 100644
--- a/listener/tun/tun_adapter.go
+++ b/listener/tun/tun_adapter.go
@@ -4,6 +4,7 @@ import (
 	"errors"
 	"fmt"
 	"strings"
+	"time"
 
 	"github.com/Dreamacro/clash/adapter/inbound"
 	"github.com/Dreamacro/clash/config"
@@ -24,7 +25,17 @@ func New(conf config.Tun, tcpIn chan<- C.ConnContext, udpIn chan<- *inbound.Pack
 
 	device, err := dev.OpenTunDevice(tunAddress, autoRoute)
 	if err != nil {
-		return nil, fmt.Errorf("can't open tun: %v", err)
+		for i := 1; i < 3; i++ {
+			time.Sleep(time.Second * 1)
+			device, err = dev.OpenTunDevice(tunAddress, autoRoute)
+			if err == nil {
+				break
+			}
+		}
+
+		if err != nil {
+			return nil, fmt.Errorf("can't open tun: %v", err)
+		}
 	}
 
 	mtu, err := device.MTU()