From bf21dbef41d5c18359c89cfe9ed5f1282f076550 Mon Sep 17 00:00:00 2001
From: xxf098 <ufxmeng@gmail.com>
Date: Sat, 11 Jul 2020 21:27:20 -0400
Subject: [PATCH] UseIPv6 config

---
 common.go    | 8 ++++++--
 tun2socks.go | 6 ++++--
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/common.go b/common.go
index 01fe9b2..1c5b8cf 100644
--- a/common.go
+++ b/common.go
@@ -319,8 +319,12 @@ func createVmessOutboundDetourConfig(profile *Vmess) conf.OutboundDetourConfig {
 	return vmessOutboundDetourConfig
 }
 
-func createFreedomOutboundDetourConfig() conf.OutboundDetourConfig {
-	outboundsSettings2, _ := json.Marshal(v2ray.OutboundsSettings{DomainStrategy: "UseIP"})
+func createFreedomOutboundDetourConfig(useIPv6 bool) conf.OutboundDetourConfig {
+	domainStrategy := "useipv4"
+	if useIPv6 {
+		domainStrategy = "useip"
+	}
+	outboundsSettings2, _ := json.Marshal(v2ray.OutboundsSettings{DomainStrategy: domainStrategy})
 	outboundsSettingsMsg2 := json.RawMessage(outboundsSettings2)
 	return conf.OutboundDetourConfig{
 		Protocol: "freedom",
diff --git a/tun2socks.go b/tun2socks.go
index b205d56..8a6ea25 100644
--- a/tun2socks.go
+++ b/tun2socks.go
@@ -63,11 +63,12 @@ type Vmess struct {
 	Security  string // vnext.Security
 	RouteMode int    // for SSRRAY
 	DNS       string // DNS Config
+	UseIPv6   bool
 	Loglevel  string
 }
 
 // TODO: default value
-func NewVmess(Host string, Path string, TLS string, Add string, Port int, Aid int, Net string, ID string, Type string, Security string, RouteMode int, DNS string, Loglevel string) *Vmess {
+func NewVmess(Host string, Path string, TLS string, Add string, Port int, Aid int, Net string, ID string, Type string, Security string, RouteMode int, DNS string, UseIPv6 bool, Loglevel string) *Vmess {
 	return &Vmess{
 		Host:      Host,
 		Path:      Path,
@@ -81,6 +82,7 @@ func NewVmess(Host string, Path string, TLS string, Add string, Port int, Aid in
 		Security:  Security,
 		RouteMode: RouteMode,
 		DNS:       DNS,
+		UseIPv6:   UseIPv6,
 		Loglevel:  Loglevel,
 	}
 }
@@ -237,7 +239,7 @@ func loadVmessConfig(profile *Vmess) (*conf.Config, error) {
 	// 	},
 	// }
 	vmessOutboundDetourConfig := createVmessOutboundDetourConfig(profile)
-	freedomOutboundDetourConfig := createFreedomOutboundDetourConfig()
+	freedomOutboundDetourConfig := createFreedomOutboundDetourConfig(profile.UseIPv6)
 	// order matters
 	// GFWList mode, use 'direct' as default
 	if profile.RouteMode == 4 {