From 4d6229c7daa4a7b8f28337c5eca9a422876c98b1 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Thu, 28 Jun 2018 04:22:45 +1200
Subject: Append AutoTrack message checksum

---
 src/org/traccar/protocol/AutoTrackProtocolDecoder.java | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src/org/traccar')

diff --git a/src/org/traccar/protocol/AutoTrackProtocolDecoder.java b/src/org/traccar/protocol/AutoTrackProtocolDecoder.java
index 370c561d9..93bba4678 100644
--- a/src/org/traccar/protocol/AutoTrackProtocolDecoder.java
+++ b/src/org/traccar/protocol/AutoTrackProtocolDecoder.java
@@ -22,6 +22,7 @@ import io.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
 import org.traccar.DeviceSession;
 import org.traccar.NetworkMessage;
+import org.traccar.helper.Checksum;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.Position;
 
@@ -102,6 +103,7 @@ public class AutoTrackProtocolDecoder extends BaseProtocolDecoder {
                     response.writeBytes(ByteBufUtil.decodeHexDump(imei));
                     response.writeShortLE(fuelConst);
                     response.writeShortLE(tripConst);
+                    response.writeShort(Checksum.crc16(Checksum.CRC16_XMODEM, response.nioBuffer()));
                     channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
                 }
                 return null;
-- 
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