From abcdd9497c02ab0960f3c98cc606e3d5b3d897b1 Mon Sep 17 00:00:00 2001
From: DHR60 <dehongren60@gmail.com>
Date: Fri, 5 Jun 2026 07:08:57 +0000
Subject: [PATCH] Support new kcp config (#9477)

---
 v2rayN/ServiceLib/Global.cs                          | 12 ++++++------
 v2rayN/ServiceLib/Models/CoreConfigs/V2rayConfig.cs  |  4 +++-
 .../CoreConfig/V2ray/V2rayOutboundService.cs         | 10 +++++-----
 3 files changed, 14 insertions(+), 12 deletions(-)

diff --git a/v2rayN/ServiceLib/Global.cs b/v2rayN/ServiceLib/Global.cs
index cadd0c53..0a35f774 100644
--- a/v2rayN/ServiceLib/Global.cs
+++ b/v2rayN/ServiceLib/Global.cs
@@ -330,12 +330,12 @@ public class Global
 
     public static readonly Dictionary<string, string> KcpHeaderMaskMap = new()
     {
-        { "srtp", "header-srtp" },
-        { "utp", "header-utp" },
-        { "wechat-video", "header-wechat" },
-        { "dtls", "header-dtls" },
-        { "wireguard", "header-wireguard" },
-        { "dns", "header-dns" }
+        { "srtp", "srtp" },
+        { "utp", "utp" },
+        { "wechat-video", "wechat" },
+        { "dtls", "dtls" },
+        { "wireguard", "wireguard" },
+        { "dns", "dns" }
     };
 
     public static readonly List<string> CoreTypes =
diff --git a/v2rayN/ServiceLib/Models/CoreConfigs/V2rayConfig.cs b/v2rayN/ServiceLib/Models/CoreConfigs/V2rayConfig.cs
index c2dd39fe..52cab623 100644
--- a/v2rayN/ServiceLib/Models/CoreConfigs/V2rayConfig.cs
+++ b/v2rayN/ServiceLib/Models/CoreConfigs/V2rayConfig.cs
@@ -501,8 +501,10 @@ public class Mask4Ray
 
 public class MaskSettings4Ray
 {
+    public string? header { get; set; }
+    public string? value { get; set; }
+
     public string? password { get; set; }
-    public string? domain { get; set; }
 
     // fragment
     public string? packets { get; set; }
diff --git a/v2rayN/ServiceLib/Services/CoreConfig/V2ray/V2rayOutboundService.cs b/v2rayN/ServiceLib/Services/CoreConfig/V2ray/V2rayOutboundService.cs
index beb0aa5b..d558f22f 100644
--- a/v2rayN/ServiceLib/Services/CoreConfig/V2ray/V2rayOutboundService.cs
+++ b/v2rayN/ServiceLib/Services/CoreConfig/V2ray/V2rayOutboundService.cs
@@ -465,8 +465,8 @@ public partial class CoreConfigV2rayService
                         [
                             new Mask4Ray
                             {
-                                type = header,
-                                settings = null
+                                type = "mkcp-legacy",
+                                settings = new MaskSettings4Ray { header = header },
                             }
                         ];
                     }
@@ -475,15 +475,15 @@ public partial class CoreConfigV2rayService
                     {
                         kcpFinalmask.udp.Add(new Mask4Ray
                         {
-                            type = "mkcp-original"
+                            type = "mkcp-legacy",
                         });
                     }
                     else
                     {
                         kcpFinalmask.udp.Add(new Mask4Ray
                         {
-                            type = "mkcp-aes128gcm",
-                            settings = new MaskSettings4Ray { password = kcpSeed }
+                            type = "mkcp-legacy",
+                            settings = new MaskSettings4Ray { value = kcpSeed },
                         });
                     }
                     streamSettings.kcpSettings = kcpSettings;