From eae394355671c31257f4a6f910030b002b183c39 Mon Sep 17 00:00:00 2001
From: Gang Zhuo <gang.zhuo@gmail.com>
Date: Sat, 19 Sep 2015 13:51:32 +0800
Subject: [PATCH] reserve buffer for one-time auth

---
 shadowsocks-csharp/Controller/Service/TCPRelay.cs | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/shadowsocks-csharp/Controller/Service/TCPRelay.cs b/shadowsocks-csharp/Controller/Service/TCPRelay.cs
index 64535644..86907f9a 100644
--- a/shadowsocks-csharp/Controller/Service/TCPRelay.cs
+++ b/shadowsocks-csharp/Controller/Service/TCPRelay.cs
@@ -93,17 +93,18 @@ namespace Shadowsocks.Controller
         private int _firstPacketLength;
         // Size of receive buffer.
         public const int RecvSize = 8192;
-        public const int BufferSize = RecvSize + (RecvSize / IVEncryptor.CRC_BUF_LEN + 1) * IVEncryptor.CRC_BYTES + 48;
+        public const int RecvReserveSize = (RecvSize / IVEncryptor.CRC_BUF_LEN + 1) * IVEncryptor.CRC_BYTES + 16; // reserve for one-time auth
+        public const int BufferSize = RecvSize + RecvReserveSize + 32;
 
         private int totalRead = 0;
         private int totalWrite = 0;
 
         // remote receive buffer
-        private byte[] remoteRecvBuffer = new byte[RecvSize];
+        private byte[] remoteRecvBuffer = new byte[BufferSize];
         // remote send buffer
         private byte[] remoteSendBuffer = new byte[BufferSize];
         // connection receive buffer
-        private byte[] connetionRecvBuffer = new byte[RecvSize];
+        private byte[] connetionRecvBuffer = new byte[BufferSize];
         // connection send buffer
         private byte[] connetionSendBuffer = new byte[BufferSize];
         // Received data string.