From b149a7b71283f1a8481c9e3954d636afcff6169e Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Mon, 27 Nov 2017 22:56:22 +1300
Subject: Support eeLink UDP format

---
 src/org/traccar/protocol/EelinkProtocolDecoder.java | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

(limited to 'src/org/traccar/protocol/EelinkProtocolDecoder.java')

diff --git a/src/org/traccar/protocol/EelinkProtocolDecoder.java b/src/org/traccar/protocol/EelinkProtocolDecoder.java
index 8d0f8016a..91ae16289 100644
--- a/src/org/traccar/protocol/EelinkProtocolDecoder.java
+++ b/src/org/traccar/protocol/EelinkProtocolDecoder.java
@@ -265,6 +265,16 @@ public class EelinkProtocolDecoder extends BaseProtocolDecoder {
 
         ChannelBuffer buf = (ChannelBuffer) msg;
 
+        DeviceSession deviceSession = null;
+
+        if (buf.getByte(0) == 'E' && buf.getByte(1) == 'L') {
+            buf.skipBytes(2 + 2 + 2); // udp header
+            deviceSession = getDeviceSession(
+                    channel, remoteAddress, ChannelBuffers.hexDump(buf.readBytes(8)).substring(1));
+        } else {
+            deviceSession = getDeviceSession(channel, remoteAddress);
+        }
+
         buf.skipBytes(2); // header
         int type = buf.readUnsignedByte();
         buf.readShort(); // length
@@ -276,11 +286,12 @@ public class EelinkProtocolDecoder extends BaseProtocolDecoder {
 
         if (type == MSG_LOGIN) {
 
-            getDeviceSession(channel, remoteAddress, ChannelBuffers.hexDump(buf.readBytes(8)).substring(1));
+            if (deviceSession == null) {
+                getDeviceSession(channel, remoteAddress, ChannelBuffers.hexDump(buf.readBytes(8)).substring(1));
+            }
 
         } else {
 
-            DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
             if (deviceSession == null) {
                 return null;
             }
-- 
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