From a116134e5b3bdb233123f581c05c7d29f1518394 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=B8=96=E7=95=8C?= <i@sekai.icu>
Date: Wed, 3 Aug 2022 19:16:50 +0800
Subject: [PATCH] Use buffer for windows packet

---
 tun_windows.go | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/tun_windows.go b/tun_windows.go
index 3717111..4aa27ef 100644
--- a/tun_windows.go
+++ b/tun_windows.go
@@ -316,11 +316,12 @@ func (e *WintunEndpoint) dispatchLoop() {
 		if err != nil {
 			break
 		}
-		packet := make([]byte, n)
-		copy(packet, data[:n])
+		packet := buf.NewSize(n)
+		common.Must1(packet.Write(data[:n]))
 		pkt := stack.NewPacketBuffer(stack.PacketBufferOptions{
-			Payload:           gBuffer.NewWithData(packet),
+			Payload:           gBuffer.NewWithData(packet.Bytes()),
 			IsForwardedPacket: true,
+			OnRelease:         packet.Release,
 		})
 		var p tcpip.NetworkProtocolNumber
 		ipHeader, ok := pkt.Data().PullUp(1)