From b0b9cdb254eb5031c744be1029d87aaf2802b674 Mon Sep 17 00:00:00 2001 From: Anton Tananaev Date: Fri, 18 Mar 2022 17:02:42 -0700 Subject: Handle heartbeat messages (fix #4824) --- src/main/java/org/traccar/protocol/NavtelecomFrameDecoder.java | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'src/main/java') diff --git a/src/main/java/org/traccar/protocol/NavtelecomFrameDecoder.java b/src/main/java/org/traccar/protocol/NavtelecomFrameDecoder.java index 0fb82528b..2ab7d11a9 100644 --- a/src/main/java/org/traccar/protocol/NavtelecomFrameDecoder.java +++ b/src/main/java/org/traccar/protocol/NavtelecomFrameDecoder.java @@ -1,5 +1,5 @@ /* - * Copyright 2021 Anton Tananaev (anton@traccar.org) + * Copyright 2021 - 2022 Anton Tananaev (anton@traccar.org) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -30,7 +30,12 @@ public class NavtelecomFrameDecoder extends BaseFrameDecoder { protected Object decode( ChannelHandlerContext ctx, Channel channel, ByteBuf buf) throws Exception { - if (buf.getByte(buf.readerIndex()) == '@') { + if (buf.getByte(buf.readerIndex()) == 0x7f) { + + buf.skipBytes(1); + return null; + + } else if (buf.getByte(buf.readerIndex()) == '@') { int length = buf.getUnsignedShortLE(12) + 12 + 2 + 2; if (buf.readableBytes() >= length) { -- cgit v1.2.3