From 779d1c7db292cdbffec4594ac9c88f0d46fcfae6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=B8=96=E7=95=8C?= <i@sekai.icu>
Date: Wed, 15 May 2024 22:22:08 +0800
Subject: [PATCH] Fix linux auto-route sequence

---
 tun_linux.go | 42 ++++++++++++++++--------------------------
 1 file changed, 16 insertions(+), 26 deletions(-)

diff --git a/tun_linux.go b/tun_linux.go
index 2eccfc0..22f09aa 100644
--- a/tun_linux.go
+++ b/tun_linux.go
@@ -573,15 +573,16 @@ func (t *NativeTun) rules() []*netlink.Rule {
 			}
 			priority++
 		}
-		/*if p6 {
+		if p4 && !t.options.StrictRoute {
 			it = netlink.NewRule()
 			it.Priority = priority
-			it.Dst = t.options.Inet6Address.Masked()
-			it.Table = tunTableIndex
-			it.Family = unix.AF_INET6
+			it.Invert = true
+			it.Dport = netlink.NewRulePortRange(53, 53)
+			it.Table = unix.RT_TABLE_MAIN
+			it.SuppressPrefixlen = 0
+			it.Family = unix.AF_INET
 			rules = append(rules, it)
-		}*/
-		if p4 && !t.options.StrictRoute {
+
 			it = netlink.NewRule()
 			it.Priority = priority
 			it.IPProto = syscall.IPPROTO_ICMP
@@ -591,6 +592,15 @@ func (t *NativeTun) rules() []*netlink.Rule {
 			priority++
 		}
 		if p6 && !t.options.StrictRoute {
+			it = netlink.NewRule()
+			it.Priority = priority6
+			it.Invert = true
+			it.Dport = netlink.NewRulePortRange(53, 53)
+			it.Table = unix.RT_TABLE_MAIN
+			it.SuppressPrefixlen = 0
+			it.Family = unix.AF_INET6
+			rules = append(rules, it)
+
 			it = netlink.NewRule()
 			it.Priority = priority6
 			it.IPProto = syscall.IPPROTO_ICMPV6
@@ -599,26 +609,6 @@ func (t *NativeTun) rules() []*netlink.Rule {
 			rules = append(rules, it)
 			priority6++
 		}
-		if p4 && !t.options.StrictRoute {
-			it = netlink.NewRule()
-			it.Priority = priority
-			it.Invert = true
-			it.Dport = netlink.NewRulePortRange(53, 53)
-			it.Table = unix.RT_TABLE_MAIN
-			it.SuppressPrefixlen = 0
-			it.Family = unix.AF_INET
-			rules = append(rules, it)
-		}
-		if p6 && !t.options.StrictRoute {
-			it = netlink.NewRule()
-			it.Priority = priority6
-			it.Invert = true
-			it.Dport = netlink.NewRulePortRange(53, 53)
-			it.Table = unix.RT_TABLE_MAIN
-			it.SuppressPrefixlen = 0
-			it.Family = unix.AF_INET6
-			rules = append(rules, it)
-		}
 	}
 
 	if p4 {