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-rw-r--r--src/org/traccar/protocol/NavisFrameDecoder.java11
-rw-r--r--src/org/traccar/protocol/NavisProtocolDecoder.java100
2 files changed, 37 insertions, 74 deletions
diff --git a/src/org/traccar/protocol/NavisFrameDecoder.java b/src/org/traccar/protocol/NavisFrameDecoder.java
index ff367ba77..9a3b3d45c 100644
--- a/src/org/traccar/protocol/NavisFrameDecoder.java
+++ b/src/org/traccar/protocol/NavisFrameDecoder.java
@@ -44,6 +44,10 @@ public class NavisFrameDecoder extends BaseFrameDecoder {
return null;
}
+ if (buf.readableBytes() > MAX_FRAME_LENGTH) {
+ throw new TooLongFrameException();
+ }
+
if (buf.getByte(buf.readerIndex()) == 0x7F) {
// FLEX keep alive frame
return buf.readRetainedSlice(1);
@@ -51,10 +55,6 @@ public class NavisFrameDecoder extends BaseFrameDecoder {
if (protocolDecoder.getFlexDataSize() > 0) {
// FLEX frame
- if (buf.readableBytes() > MAX_FRAME_LENGTH) {
- throw new TooLongFrameException();
- }
-
if (buf.readableBytes() > FLEX_HEADER_LENGTH) {
int length = 0;
String type = buf.toString(buf.readerIndex(), 2, StandardCharsets.US_ASCII);
@@ -101,9 +101,6 @@ public class NavisFrameDecoder extends BaseFrameDecoder {
int length = buf.getUnsignedShortLE(buf.readerIndex() + NTCB_LENGTH_OFFSET);
if (buf.readableBytes() >= NTCB_HEADER_LENGTH + length) {
- if (buf.readableBytes() > MAX_FRAME_LENGTH) {
- throw new TooLongFrameException();
- }
return buf.readRetainedSlice(NTCB_HEADER_LENGTH + length);
}
}
diff --git a/src/org/traccar/protocol/NavisProtocolDecoder.java b/src/org/traccar/protocol/NavisProtocolDecoder.java
index 912e47369..d3b3f9932 100644
--- a/src/org/traccar/protocol/NavisProtocolDecoder.java
+++ b/src/org/traccar/protocol/NavisProtocolDecoder.java
@@ -18,8 +18,6 @@ package org.traccar.protocol;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.Channel;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
import org.traccar.BaseProtocolDecoder;
import org.traccar.DeviceSession;
import org.traccar.NetworkMessage;
@@ -44,7 +42,6 @@ public class NavisProtocolDecoder extends BaseProtocolDecoder {
private int flexDataSize; // bytes
private int flexBitfieldDataSize; // bits
private final byte[] flexBitfield;
- private static final Logger LOGGER = LoggerFactory.getLogger(NavisProtocolDecoder.class);
private static final int[] FLEX_FIELDS_SIZES = {4, 2, 4, 1, 1, 1, 1, 1, 4, 4, 4, 4, 4, 2, 4, 4, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 4, 4, 2, 2, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1,
1, 2, 4, 2, 1, 4, 2, 2, 2, 2, 2, 1, 1, 1, 2, 4, 2, 1, /* FLEX 2.0 */ 8, 2, 1, 16, 4, 2, 4, 37, 1,
@@ -323,12 +320,6 @@ public class NavisProtocolDecoder extends BaseProtocolDecoder {
return BitUtil.check(flexBitfield[byteIndex], 7 - bitIndex);
}
- private void skipFlexField(int index, ByteBuf buf) {
- if (index < FLEX_FIELDS_SIZES.length) {
- buf.skipBytes(FLEX_FIELDS_SIZES[index]);
- }
- }
-
private ParseResult parseFlexPosition(DeviceSession deviceSession, ByteBuf buf) {
Position position = new Position(getProtocolName());
@@ -342,7 +333,6 @@ public class NavisProtocolDecoder extends BaseProtocolDecoder {
for (int i = 0; i < flexBitfieldDataSize; i++) {
if (!checkFlexBitfield(i)) {
- // skip FLEX field
continue;
}
@@ -458,29 +448,14 @@ public class NavisProtocolDecoder extends BaseProtocolDecoder {
case 51:
position.set(Position.PREFIX_TEMP + (i - 43), buf.readByte());
break;
- case 68: // CAN Speed
+ case 68:
position.set("can-speed", buf.readUnsignedByte());
break;
// FLEX 2.0
case 69:
int satVisible = 0;
for (int k = 0; k < 8; k++) {
- switch (k) {
- case 0:
- int satVisibleGLONASS = buf.readUnsignedByte();
- position.set("sat-visible-glonass", satVisibleGLONASS);
- satVisible += satVisibleGLONASS;
- break;
- case 1:
- int satVisibleGPS = buf.readUnsignedByte();
- position.set("sat-visible-gps", satVisibleGPS);
- satVisible += satVisibleGPS;
- break;
- default:
- // Don't detalize Galileo, Compass, Beidou, DORIS, IRNSS, QZSS
- satVisible += buf.readUnsignedByte();
- break;
- }
+ satVisible += buf.readUnsignedByte();
}
position.set(Position.KEY_SATELLITES_VISIBLE, satVisible);
break;
@@ -489,7 +464,9 @@ public class NavisProtocolDecoder extends BaseProtocolDecoder {
position.set(Position.KEY_PDOP, buf.readUnsignedByte() * 0.1);
break;
default:
- skipFlexField(i, buf);
+ if (i < FLEX_FIELDS_SIZES.length) {
+ buf.skipBytes(FLEX_FIELDS_SIZES[i]);
+ }
break;
}
}
@@ -505,7 +482,6 @@ public class NavisProtocolDecoder extends BaseProtocolDecoder {
long index = 0;
int length = buf.readUnsignedShort();
- // Check buffer size and struct version
if (length <= buf.readableBytes() && buf.readUnsignedByte() == 0x0A) {
buf.readUnsignedByte(); // length of static part
@@ -586,12 +562,10 @@ public class NavisProtocolDecoder extends BaseProtocolDecoder {
return null;
}
- byte flexProtocolVersion, flexStructVersion;
-
- flexProtocolVersion = (byte) buf.readUnsignedByte();
- flexStructVersion = (byte) buf.readUnsignedByte();
- if ((flexProtocolVersion == (byte) 0x0A || flexProtocolVersion == (byte) 0x14)
- && (flexStructVersion == (byte) 0x0A || flexStructVersion == (byte) 0x14)) {
+ byte flexProtocolVersion = (byte) buf.readUnsignedByte();
+ byte flexStructVersion = (byte) buf.readUnsignedByte();
+ if ((flexProtocolVersion == 0x0A || flexProtocolVersion == 0x14)
+ && (flexStructVersion == 0x0A || flexStructVersion == 0x14)) {
flexBitfieldDataSize = buf.readUnsignedByte();
if (flexBitfieldDataSize > 122) {
@@ -674,20 +648,16 @@ public class NavisProtocolDecoder extends BaseProtocolDecoder {
} else {
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
if (deviceSession != null) {
- try {
- switch (type) {
- case "*>A":
- return processNtcbArray(deviceSession, channel, buf);
- case "*>T":
- return processNtcbSingle(deviceSession, channel, buf);
- case "*>F": // "*>FLEX"
- buf.skipBytes(3);
- return processFlexNegotiation(channel, buf);
- default:
- break;
- }
- } catch (IndexOutOfBoundsException error) {
- LOGGER.warn("Navis NTCB message parsing error", error);
+ switch (type) {
+ case "*>A":
+ return processNtcbArray(deviceSession, channel, buf);
+ case "*>T":
+ return processNtcbSingle(deviceSession, channel, buf);
+ case "*>F":
+ buf.skipBytes(3);
+ return processFlexNegotiation(channel, buf);
+ default:
+ break;
}
}
}
@@ -707,24 +677,20 @@ public class NavisProtocolDecoder extends BaseProtocolDecoder {
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
if (deviceSession != null) {
- try {
- switch (type) {
- // FLEX 1.0
- case "~A":
- return processFlexArray(this::parseFlexPosition, type, deviceSession, channel, buf);
- case "~T":
- case "~C":
- return processFlexSingle(this::parseFlexPosition, type, deviceSession, channel, buf);
- // FLEX 2.0 (Extra packages)
- case "~E":
- return processFlexArray(this::parseFlex20Position, type, deviceSession, channel, buf);
- case "~X":
- return processFlexSingle(this::parseFlex20Position, type, deviceSession, channel, buf);
- default:
- break;
- }
- } catch (IndexOutOfBoundsException error) {
- LOGGER.warn("Navis FLEX message parsing error", error);
+ switch (type) {
+ // FLEX 1.0
+ case "~A":
+ return processFlexArray(this::parseFlexPosition, type, deviceSession, channel, buf);
+ case "~T":
+ case "~C":
+ return processFlexSingle(this::parseFlexPosition, type, deviceSession, channel, buf);
+ // FLEX 2.0 (Extra packages)
+ case "~E":
+ return processFlexArray(this::parseFlex20Position, type, deviceSession, channel, buf);
+ case "~X":
+ return processFlexSingle(this::parseFlex20Position, type, deviceSession, channel, buf);
+ default:
+ break;
}
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 19:38:37 +0000