From 1e10c17ecb3d1af10affc0bac7e2f9933ed215a8 Mon Sep 17 00:00:00 2001
From: Viktor Liu <17948409+lixmal@users.noreply.github.com>
Date: Tue, 4 Mar 2025 11:19:54 +0100
Subject: [PATCH] Fix tcp state (#3431)

---
 client/firewall/uspfilter/conntrack/tcp.go | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/client/firewall/uspfilter/conntrack/tcp.go b/client/firewall/uspfilter/conntrack/tcp.go
index af5ecb302..acf34c49d 100644
--- a/client/firewall/uspfilter/conntrack/tcp.go
+++ b/client/firewall/uspfilter/conntrack/tcp.go
@@ -265,11 +265,11 @@ func (t *TCPTracker) updateState(key ConnKey, conn *TCPConnTrack, flags uint8, i
 	case TCPStateSynSent:
 		if flags&TCPSyn != 0 && flags&TCPAck != 0 {
 			if isOutbound {
-				conn.State = TCPStateSynReceived
-			} else {
-				// Simultaneous open
 				conn.State = TCPStateEstablished
 				conn.SetEstablished(true)
+			} else {
+				// Simultaneous open
+				conn.State = TCPStateSynReceived
 			}
 		}