From 921533f5604976fcda0823c1e201f453c251bb11 Mon Sep 17 00:00:00 2001
From: ospab <ospab@ospab.host>
Date: Thu, 21 May 2026 03:00:44 +0300
Subject: [PATCH] fix: pass mtu to tun2socks

---
 ostp-jni/src/lib.rs | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/ostp-jni/src/lib.rs b/ostp-jni/src/lib.rs
index b0c3f49..0bedd2b 100644
--- a/ostp-jni/src/lib.rs
+++ b/ostp-jni/src/lib.rs
@@ -208,8 +208,13 @@ pub extern "system" fn Java_net_ostp_client_OstpClientSdk_startClient(
     cmd.arg("-device")
        .arg(&fd_str)
        .arg("-proxy")
-       .arg(&proxy_str)
-       .stdout(std::process::Stdio::piped())
+       .arg(&proxy_str);
+    
+    if config.ostp.mtu > 0 {
+        cmd.arg("-mtu").arg(config.ostp.mtu.to_string());
+    }
+    
+    cmd.stdout(std::process::Stdio::piped())
        .stderr(std::process::Stdio::piped());
 
     let mut child = match cmd.spawn() {