diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/org/traccar/protocol/Arnavi4FrameDecoder.java | 16 | ||||
| -rw-r--r-- | src/org/traccar/protocol/Arnavi4ProtocolDecoder.java | 4 |
2 files changed, 14 insertions, 6 deletions
diff --git a/src/org/traccar/protocol/Arnavi4FrameDecoder.java b/src/org/traccar/protocol/Arnavi4FrameDecoder.java index a50ece641..bb130e6bb 100644 --- a/src/org/traccar/protocol/Arnavi4FrameDecoder.java +++ b/src/org/traccar/protocol/Arnavi4FrameDecoder.java @@ -50,10 +50,18 @@ public class Arnavi4FrameDecoder extends FrameDecoder { return buf.readBytes(HEADER_LENGTH); } - int parcelNumber = buf.getByte(1) & 0xFF; - if (buf.getByte(0) == PACKAGE_START_SIGN && buf.getByte(buf.readableBytes() - 1) == PACKAGE_END_SIGN - && parcelNumber >= PACKAGE_MIN_PARCEL_NUMBER && parcelNumber <= PACKAGE_MAX_PARCEL_NUMBER) { - return buf; + int index = buf.getByte(1) & 0xFF; // parcel number + if (buf.getByte(0) == PACKAGE_START_SIGN + && index >= PACKAGE_MIN_PARCEL_NUMBER && index <= PACKAGE_MAX_PARCEL_NUMBER) { + + // package: 1 byte start sign, 1 byte parcel number, packets, 1 byte end sign + int packetStartIndex = 2; + while (packetStartIndex + 8 < buf.readableBytes() && buf.getByte(packetStartIndex) != PACKAGE_END_SIGN) { + // packet: 1 byte type, 2 bytes length, 4 bytes unixtime, length-bytes data, 1 byte crc + packetStartIndex += buf.getUnsignedShort(packetStartIndex + 1) + 8; + } + + return buf.readBytes(packetStartIndex + 1); } return null; diff --git a/src/org/traccar/protocol/Arnavi4ProtocolDecoder.java b/src/org/traccar/protocol/Arnavi4ProtocolDecoder.java index 07e4d855c..ed11e1559 100644 --- a/src/org/traccar/protocol/Arnavi4ProtocolDecoder.java +++ b/src/org/traccar/protocol/Arnavi4ProtocolDecoder.java @@ -153,7 +153,7 @@ public class Arnavi4ProtocolDecoder extends BaseProtocolDecoder { int index = buf.readUnsignedByte(); byte recordType = buf.readByte(); - while (recordType != PACKAGE_END_SIGN && buf.readableBytes() != 1) { // The last end sign byte + while (buf.readableBytes() > 0) { switch (recordType) { case RECORD_PING: case RECORD_DATA: @@ -176,7 +176,7 @@ public class Arnavi4ProtocolDecoder extends BaseProtocolDecoder { return null; // Ignore unsupported types of package } - recordType = buf.readByte(); + recordType = buf.readByte(); // The last byte in package is end sign } sendPackageResponse(channel, index); |