Garmin protocol: fixes
- fix DEVICE_SETTINGS message ID - put all status messages in own package - allow protobuf handler to change the returned status message to signal unsupported requests - fix various bugs
This commit is contained in:
Daniele Gobbetti
parent
1d1c6146a7
commit
fe1f610546
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@ -30,9 +30,9 @@ import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.Conf
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import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.GFDIMessage;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.MusicControlEntityUpdateMessage;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.ProtobufMessage;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.ProtobufStatusMessage;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.SetDeviceSettingsMessage;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.SystemEventMessage;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.status.ProtobufStatusMessage;
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import nodomain.freeyourgadget.gadgetbridge.util.StringUtils;
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@ -100,6 +100,14 @@ public class GarminSupport extends AbstractBTLEDeviceSupport implements ICommuni
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evaluateGBDeviceEvent(parsedMessage.getGBDeviceEvent());
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if (parsedMessage instanceof ProtobufMessage) {
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ProtobufMessage protobufMessage = protocolBufferHandler.processIncoming((ProtobufMessage) parsedMessage);
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if (protobufMessage != null) {
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communicator.sendMessage(protobufMessage.getOutgoingMessage());
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communicator.sendMessage(protobufMessage.getAckBytestream());
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}
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}
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communicator.sendMessage(parsedMessage.getAckBytestream());
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byte[] response = parsedMessage.getOutgoingMessage();
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@ -112,14 +120,6 @@ public class GarminSupport extends AbstractBTLEDeviceSupport implements ICommuni
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completeInitialization();
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}
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if (parsedMessage instanceof ProtobufMessage) {
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ProtobufMessage protobufMessage = protocolBufferHandler.processIncoming((ProtobufMessage) parsedMessage);
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if (protobufMessage != null) {
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communicator.sendMessage(protobufMessage.getOutgoingMessage());
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communicator.sendMessage(protobufMessage.getAckBytestream());
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}
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}
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if (parsedMessage instanceof ProtobufStatusMessage) {
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ProtobufMessage protobufMessage = protocolBufferHandler.processIncoming((ProtobufStatusMessage) parsedMessage);
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if (protobufMessage != null) {
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@ -20,7 +20,7 @@ import nodomain.freeyourgadget.gadgetbridge.proto.vivomovehr.GdiFindMyWatch;
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import nodomain.freeyourgadget.gadgetbridge.proto.vivomovehr.GdiSmartProto;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.GFDIMessage;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.ProtobufMessage;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.ProtobufStatusMessage;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.status.ProtobufStatusMessage;
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import nodomain.freeyourgadget.gadgetbridge.util.GB;
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import nodomain.freeyourgadget.gadgetbridge.util.calendar.CalendarEvent;
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import nodomain.freeyourgadget.gadgetbridge.util.calendar.CalendarManager;
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@ -75,13 +75,14 @@ public class ProtocolBufferHandler {
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}
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if (!processed) {
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LOG.warn("Unknown protobuf request: {}", smart);
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message.setStatusMessage(new ProtobufStatusMessage(message.getMessageType(), GFDIMessage.Status.ACK, message.getRequestId(), message.getDataOffset(), ProtobufStatusMessage.ProtobufChunkStatus.DISCARDED, ProtobufStatusMessage.ProtobufStatusCode.UNKNOWN_REQUEST_ID));
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}
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}
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return null;
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}
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public ProtobufMessage processIncoming(ProtobufStatusMessage statusMessage) {
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LOG.info("Processing protobuf status message #{}@{}: status={}, error={}", statusMessage.getRequestId(), statusMessage.getDataOffset(), statusMessage.getProtobufStatus(), statusMessage.getError());
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LOG.info("Processing protobuf status message #{}@{}: status={}, error={}", statusMessage.getRequestId(), statusMessage.getDataOffset(), statusMessage.getProtobufChunkStatus(), statusMessage.getProtobufStatusCode());
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//TODO: check status and react accordingly, right now we blindly proceed to next chunk
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if (chunkedFragmentsMap.containsKey(statusMessage.getRequestId()) && statusMessage.isOK()) {
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final ProtobufFragment protobufFragment = chunkedFragmentsMap.get(statusMessage.getRequestId());
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@ -7,8 +7,11 @@ import org.slf4j.LoggerFactory;
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import java.lang.reflect.Method;
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import java.nio.ByteBuffer;
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import java.nio.ByteOrder;
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import nodomain.freeyourgadget.gadgetbridge.deviceevents.GBDeviceEvent;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.status.GFDIStatusMessage;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.status.GenericStatusMessage;
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public abstract class GFDIMessage {
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public static final int MESSAGE_RESPONSE = 5000; //TODO: MESSAGE_STATUS is a better name?
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@ -51,9 +54,9 @@ public abstract class GFDIMessage {
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final int messageType = messageReader.readShort();
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try {
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// Class<? extends GFDIMessage> objectClass = GarminMessage.fromId(messageType);
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Method m = GarminMessage.fromId(messageType).getMethod("parseIncoming", MessageReader.class, int.class);
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return GarminMessage.fromId(messageType).cast(m.invoke(null, messageReader, messageType));
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// Class<? extends GFDIMessage> objectClass = GarminMessage.getClassFromId(messageType);
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Method m = GarminMessage.getClassFromId(messageType).getMethod("parseIncoming", MessageReader.class, int.class);
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return GarminMessage.getClassFromId(messageType).cast(m.invoke(null, messageReader, messageType));
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} catch (Exception e) {
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LOG.error("UNHANDLED GFDI MESSAGE TYPE {}, MESSAGE {}", messageType, message);
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return new UnhandledMessage(messageType);
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@ -65,6 +68,7 @@ public abstract class GFDIMessage {
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public byte[] getOutgoingMessage() {
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response.clear();
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boolean toSend = generateOutgoing();
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response.order(ByteOrder.LITTLE_ENDIAN);
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if (!toSend)
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return null;
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addLengthAndChecksum();
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@ -99,6 +103,7 @@ public abstract class GFDIMessage {
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RESPONSE(5000, GFDIStatusMessage.class), //TODO: STATUS is a better name?
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SYSTEM_EVENT(5030, SystemEventMessage.class),
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DEVICE_INFORMATION(5024, DeviceInformationMessage.class),
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DEVICE_SETTINGS(5026, SetDeviceSettingsMessage.class),
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FIND_MY_PHONE(5039, FindMyPhoneRequestMessage.class),
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CANCEL_FIND_MY_PHONE(5040, FindMyPhoneRequestMessage.class),
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MUSIC_CONTROL(5041, MusicControlMessage.class),
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@ -117,7 +122,7 @@ public abstract class GFDIMessage {
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this.objectClass = objectClass;
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}
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public static Class<? extends GFDIMessage> fromId(final int id) {
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public static Class<? extends GFDIMessage> getClassFromId(final int id) {
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for (final GarminMessage garminMessage : GarminMessage.values()) {
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if (garminMessage.getId() == id) {
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return garminMessage.getObjectClass();
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@ -126,6 +131,14 @@ public abstract class GFDIMessage {
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return null;
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}
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public static GarminMessage fromId(final int id) {
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for (final GarminMessage garminMessage : GarminMessage.values()) {
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if (garminMessage.getId() == id) {
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return garminMessage;
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}
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}
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return null;
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}
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public int getId() {
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return id;
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}
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@ -1,28 +0,0 @@
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package nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages;
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public abstract class GFDIStatusMessage extends GFDIMessage {
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Status status;
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public static GFDIStatusMessage parseIncoming(MessageReader reader, int messageType) {
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final int requestMessageType = reader.readShort();
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if (GarminMessage.PROTOBUF_REQUEST.getId() == requestMessageType || GarminMessage.PROTOBUF_RESPONSE.getId() == requestMessageType) {
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return ProtobufStatusMessage.parseIncoming(reader, messageType);
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} else {
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final Status status = Status.fromCode(reader.readByte());
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reader.warnIfLeftover();
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return new GenericStatusMessage(messageType, status);
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}
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}
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@Override
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protected boolean generateOutgoing() {
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return false;
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}
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protected Status getStatus() {
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return status;
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}
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}
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@ -13,7 +13,6 @@ public class MessageReader {
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protected static final Logger LOG = LoggerFactory.getLogger(MessageReader.class);
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private final ByteBuffer byteBuffer;
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private final int payloadSize;
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public MessageReader(byte[] data) {
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@ -33,6 +32,10 @@ public class MessageReader {
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return !byteBuffer.hasRemaining();
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}
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public boolean isEndOfPayload() {
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return byteBuffer.position() >= payloadSize - 2;
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}
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public int getPosition() {
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return byteBuffer.position();
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}
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@ -99,7 +102,6 @@ public class MessageReader {
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return byteBuffer.capacity();
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}
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private void checkSize() {
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if (payloadSize > getCapacity()) {
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LOG.error("Received GFDI packet with invalid length: {} vs {}", payloadSize, getCapacity());
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@ -116,12 +118,13 @@ public class MessageReader {
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}
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}
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public void warnIfLeftover() {
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if (byteBuffer.hasRemaining() && byteBuffer.position() < (byteBuffer.limit() - 2)) {
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int pos = byteBuffer.position();
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int numBytes = (byteBuffer.limit() - 2) - byteBuffer.position();
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byte[] leftover = new byte[numBytes];
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byteBuffer.get(leftover);
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byteBuffer.position(pos);
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LOG.warn("Leftover bytes when parsing message. Bytes: {}, complete message: {}", GB.hexdump(leftover), GB.hexdump(byteBuffer.array()));
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}
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}
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@ -1,7 +1,11 @@
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package nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages;
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import static nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.ProtobufStatusMessage.ProtobufStatusCode.NO_ERROR;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.status.GenericStatusMessage;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.status.ProtobufStatusMessage;
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import static nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.status.ProtobufStatusMessage.ProtobufChunkStatus.KEPT;
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import static nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.status.ProtobufStatusMessage.ProtobufStatusCode.NO_ERROR;
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public class ProtobufMessage extends GFDIMessage {
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@ -14,10 +18,6 @@ public class ProtobufMessage extends GFDIMessage {
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private final byte[] messageBytes;
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private final boolean sendOutgoing;
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public ProtobufMessage(int messageType, int requestId, int dataOffset, int totalProtobufLength, int protobufDataLength, byte[] messageBytes) {
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this(messageType, requestId, dataOffset, totalProtobufLength, protobufDataLength, messageBytes, true);
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}
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public ProtobufMessage(int messageType, int requestId, int dataOffset, int totalProtobufLength, int protobufDataLength, byte[] messageBytes, boolean sendOutgoing) {
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this.messageType = messageType;
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this.requestId = requestId;
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@ -30,9 +30,16 @@ public class ProtobufMessage extends GFDIMessage {
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if (isComplete()) {
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this.statusMessage = new GenericStatusMessage(messageType, GFDIMessage.Status.ACK);
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} else {
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this.statusMessage = new ProtobufStatusMessage(messageType, GFDIMessage.Status.ACK, requestId, dataOffset, NO_ERROR, NO_ERROR);
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this.statusMessage = new ProtobufStatusMessage(messageType, GFDIMessage.Status.ACK, requestId, dataOffset, KEPT, NO_ERROR);
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}
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}
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public ProtobufMessage(int messageType, int requestId, int dataOffset, int totalProtobufLength, int protobufDataLength, byte[] messageBytes) {
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this(messageType, requestId, dataOffset, totalProtobufLength, protobufDataLength, messageBytes, true);
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}
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public void setStatusMessage(ProtobufStatusMessage protobufStatusMessage) {
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this.statusMessage = protobufStatusMessage;
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}
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public static ProtobufMessage parseIncoming(MessageReader reader, int messageType) {
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final int requestID = reader.readShort();
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@ -17,7 +17,7 @@ public class SetDeviceSettingsMessage extends GFDIMessage {
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protected boolean generateOutgoing() {
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final MessageWriter writer = new MessageWriter(response);
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writer.writeShort(0); // packet size will be filled below
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writer.writeShort(GarminMessage.DEVICE_INFORMATION.getId());
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writer.writeShort(GarminMessage.DEVICE_SETTINGS.getId());
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writer.writeByte(settings.size());
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for (Map.Entry<GarminDeviceSetting, Object> settingPair : settings.entrySet()) {
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final GarminDeviceSetting setting = settingPair.getKey();
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@ -1,5 +1,7 @@
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package nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.status.GenericStatusMessage;
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public class UnhandledMessage extends GFDIMessage {
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private final int messageType;
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@ -0,0 +1,39 @@
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package nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.status;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.GFDIMessage;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.MessageReader;
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public abstract class GFDIStatusMessage extends GFDIMessage {
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Status status;
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public static GFDIStatusMessage parseIncoming(MessageReader reader, int messageType) {
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final GarminMessage garminMessage = GFDIMessage.GarminMessage.fromId(reader.readShort());
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if (GarminMessage.PROTOBUF_REQUEST.equals(garminMessage) || GarminMessage.PROTOBUF_RESPONSE.equals(garminMessage)) {
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return ProtobufStatusMessage.parseIncoming(reader, messageType);
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} else {
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final Status status = Status.fromCode(reader.readByte());
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switch (status) {
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case ACK:
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LOG.info("Received ACK for message {}", garminMessage.name());
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break;
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default:
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LOG.warn("Received {} for message {}", status, garminMessage.name());
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}
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reader.warnIfLeftover();
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return new GenericStatusMessage(messageType, status);
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}
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}
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@Override
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protected boolean generateOutgoing() {
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return false;
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}
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protected Status getStatus() {
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return status;
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}
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}
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@ -1,4 +1,6 @@
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package nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages;
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package nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.status;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.MessageWriter;
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public class GenericStatusMessage extends GFDIStatusMessage {
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@ -1,27 +1,31 @@
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package nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages;
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package nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.status;
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import androidx.annotation.Nullable;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.MessageReader;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.garmin.messages.MessageWriter;
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public class ProtobufStatusMessage extends GFDIStatusMessage {
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private final Status status;
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private final int requestId;
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private final int dataOffset;
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private final ProtobufStatusCode protobufStatus;
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private final ProtobufStatusCode error; //TODO: why is this duplicated?
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private final ProtobufChunkStatus protobufChunkStatus;
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private final ProtobufStatusCode protobufStatusCode;
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private final int messageType;
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private final boolean sendOutgoing;
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public ProtobufStatusMessage(int messageType, Status status, int requestId, int dataOffset, ProtobufStatusCode protobufStatus, ProtobufStatusCode error) {
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this(messageType, status, requestId, dataOffset, protobufStatus, error, true);
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public ProtobufStatusMessage(int messageType, Status status, int requestId, int dataOffset, ProtobufChunkStatus protobufChunkStatus, ProtobufStatusCode protobufStatusCode) {
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this(messageType, status, requestId, dataOffset, protobufChunkStatus, protobufStatusCode, true);
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}
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public ProtobufStatusMessage(int messageType, Status status, int requestId, int dataOffset, ProtobufStatusCode protobufStatus, ProtobufStatusCode error, boolean sendOutgoing) {
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public ProtobufStatusMessage(int messageType, Status status, int requestId, int dataOffset, ProtobufChunkStatus protobufChunkStatus, ProtobufStatusCode protobufStatusCode, boolean sendOutgoing) {
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this.messageType = messageType;
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this.status = status;
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this.requestId = requestId;
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this.dataOffset = dataOffset;
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this.protobufStatus = protobufStatus;
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this.error = error;
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this.protobufChunkStatus = protobufChunkStatus;
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this.protobufStatusCode = protobufStatusCode;
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this.sendOutgoing = sendOutgoing;
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}
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@ -29,7 +33,7 @@ public class ProtobufStatusMessage extends GFDIStatusMessage {
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final Status status = Status.fromCode(reader.readByte());
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final int requestID = reader.readShort();
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final int dataOffset = reader.readInt();
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final ProtobufStatusCode protobufStatus = ProtobufStatusCode.fromCode(reader.readByte());
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final ProtobufChunkStatus protobufStatus = ProtobufChunkStatus.fromCode(reader.readByte());
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final ProtobufStatusCode error = ProtobufStatusCode.fromCode(reader.readByte());
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reader.warnIfLeftover();
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@ -40,12 +44,12 @@ public class ProtobufStatusMessage extends GFDIStatusMessage {
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return dataOffset;
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}
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public ProtobufStatusCode getProtobufStatus() {
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return protobufStatus;
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public ProtobufChunkStatus getProtobufChunkStatus() {
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return protobufChunkStatus;
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}
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public ProtobufStatusCode getError() {
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return error;
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public ProtobufStatusCode getProtobufStatusCode() {
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return protobufStatusCode;
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}
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public int getMessageType() {
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@ -58,8 +62,8 @@ public class ProtobufStatusMessage extends GFDIStatusMessage {
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public boolean isOK() {
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return this.status.equals(Status.ACK) &&
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this.protobufStatus.equals(ProtobufStatusCode.NO_ERROR) &&
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this.error.equals(ProtobufStatusCode.NO_ERROR);
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this.protobufChunkStatus.equals(ProtobufChunkStatus.KEPT) &&
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this.protobufStatusCode.equals(ProtobufStatusCode.NO_ERROR);
|
||||
}
|
||||
|
||||
@Override
|
||||
|
|
@ -71,8 +75,8 @@ public class ProtobufStatusMessage extends GFDIStatusMessage {
|
|||
writer.writeByte(status.ordinal());
|
||||
writer.writeShort(requestId);
|
||||
writer.writeInt(dataOffset);
|
||||
writer.writeByte(protobufStatus.code);
|
||||
writer.writeByte(error.code);
|
||||
writer.writeByte(protobufChunkStatus.ordinal());
|
||||
writer.writeByte(protobufStatusCode.code);
|
||||
return sendOutgoing;
|
||||
}
|
||||
|
||||
|
|
@ -80,9 +84,25 @@ public class ProtobufStatusMessage extends GFDIStatusMessage {
|
|||
return status;
|
||||
}
|
||||
|
||||
public enum ProtobufChunkStatus { //based on the observations of the combination with the StatusCode
|
||||
KEPT,
|
||||
DISCARDED,
|
||||
;
|
||||
|
||||
@Nullable
|
||||
public static ProtobufChunkStatus fromCode(final int code) {
|
||||
for (final ProtobufChunkStatus status : ProtobufChunkStatus.values()) {
|
||||
if (status.ordinal() == code) {
|
||||
return status;
|
||||
}
|
||||
}
|
||||
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
public enum ProtobufStatusCode {
|
||||
NO_ERROR(0),
|
||||
UNKNOWN_ERROR(1),
|
||||
UNKNOWN_REQUEST_ID(100),
|
||||
DUPLICATE_PACKET(101),
|
||||
MISSING_PACKET(102),
|
||||
Loading…
Reference in New Issue