From 2acd206821d52cbd43e5bda20fac35ad0c6526a7 Mon Sep 17 00:00:00 2001
From: yuhan6665 <1588741+yuhan6665@users.noreply.github.com>
Date: Mon, 1 Sep 2025 10:47:22 -0400
Subject: [PATCH] Direct/Freedom outbound: Use proxy.IsRAWTransport(conn)
 (#5074)

---
 proxy/freedom/freedom.go | 25 +++----------------------
 1 file changed, 3 insertions(+), 22 deletions(-)

diff --git a/proxy/freedom/freedom.go b/proxy/freedom/freedom.go
index f8d64812..9429e27a 100644
--- a/proxy/freedom/freedom.go
+++ b/proxy/freedom/freedom.go
@@ -26,7 +26,6 @@ import (
 	"github.com/xtls/xray-core/transport"
 	"github.com/xtls/xray-core/transport/internet"
 	"github.com/xtls/xray-core/transport/internet/stat"
-	"github.com/xtls/xray-core/transport/internet/tls"
 )
 
 var useSplice bool
@@ -212,16 +211,14 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 
 	responseDone := func() error {
 		defer timer.SetTimeout(plcy.Timeouts.UplinkOnly)
-		if destination.Network == net.Network_TCP {
+		if destination.Network == net.Network_TCP && useSplice && proxy.IsRAWTransport(conn) { // it would be tls conn in special use case of MITM, we need to let link handle traffic
 			var writeConn net.Conn
 			var inTimer *signal.ActivityTimer
-			if inbound := session.InboundFromContext(ctx); inbound != nil && inbound.Conn != nil && useSplice {
+			if inbound := session.InboundFromContext(ctx); inbound != nil && inbound.Conn != nil {
 				writeConn = inbound.Conn
 				inTimer = inbound.Timer
 			}
-			if !isTLSConn(conn) { // it would be tls conn in special use case of MITM, we need to let link handle traffic
-				return proxy.CopyRawConnIfExist(ctx, conn, writeConn, link.Writer, timer, inTimer)
-			}
+			return proxy.CopyRawConnIfExist(ctx, conn, writeConn, link.Writer, timer, inTimer)
 		}
 		var reader buf.Reader
 		if destination.Network == net.Network_TCP {
@@ -246,22 +243,6 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 	return nil
 }
 
-func isTLSConn(conn stat.Connection) bool {
-	if conn != nil {
-		statConn, ok := conn.(*stat.CounterConnection)
-		if ok {
-			conn = statConn.Connection
-		}
-		if _, ok := conn.(*tls.Conn); ok {
-			return true
-		}
-		if _, ok := conn.(*tls.UConn); ok {
-			return true
-		}
-	}
-	return false
-}
-
 func NewPacketReader(conn net.Conn, UDPOverride net.Destination, DialDest net.Destination) buf.Reader {
 	iConn := conn
 	statConn, ok := iConn.(*stat.CounterConnection)