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fix_bug_lwm2m: add block2 condition

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nick 2025-03-13 15:08:14 +02:00
parent d7f274cbf0
commit 730cebea6d
3 changed files with 32 additions and 12 deletions
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5
common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/server/DefaultLwM2mTransportService.java
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@ -20,6 +20,7 @@ import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.eclipse.californium.core.CoapResource;
import org.eclipse.californium.core.CoapServer;
import org.eclipse.californium.core.config.CoapConfig;
import org.eclipse.californium.elements.config.Configuration;
import org.eclipse.californium.scandium.config.DtlsConfig;
import org.eclipse.californium.scandium.dtls.cipher.CipherSuite;
@ -194,8 +195,8 @@ public class DefaultLwM2mTransportService implements LwM2MTransportService {
root = new CoapResource("");
coapServer.add(root);
}
root.add(new LwM2mTransportCoapResource(otaPackageDataCache, FIRMWARE_UPDATE_COAP_RESOURCE));
root.add(new LwM2mTransportCoapResource(otaPackageDataCache, SOFTWARE_UPDATE_COAP_RESOURCE));
root.add(new LwM2mTransportCoapResource(otaPackageDataCache, FIRMWARE_UPDATE_COAP_RESOURCE, serverCoapConfig.get(CoapConfig.PREFERRED_BLOCK_SIZE), serverCoapConfig.get(CoapConfig.MAX_RESOURCE_BODY_SIZE)));
root.add(new LwM2mTransportCoapResource(otaPackageDataCache, SOFTWARE_UPDATE_COAP_RESOURCE,serverCoapConfig.get(CoapConfig.PREFERRED_BLOCK_SIZE), serverCoapConfig.get(CoapConfig.MAX_RESOURCE_BODY_SIZE)));
}
return leshanServer;
}

32
common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/server/LwM2mTransportCoapResource.java
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@ -34,16 +34,21 @@ import java.util.concurrent.atomic.AtomicInteger;
import static org.thingsboard.server.transport.lwm2m.server.ota.DefaultLwM2MOtaUpdateService.FIRMWARE_UPDATE_COAP_RESOURCE;
import static org.thingsboard.server.transport.lwm2m.server.ota.DefaultLwM2MOtaUpdateService.SOFTWARE_UPDATE_COAP_RESOURCE;
import static org.thingsboard.server.transport.lwm2m.utils.LwM2MTransportUtil.calculateSzx;
@Slf4j
public class LwM2mTransportCoapResource extends AbstractLwM2mTransportResource {
private final ConcurrentMap<String, ObserveRelation> tokenToObserveRelationMap = new ConcurrentHashMap<>();
private final ConcurrentMap<String, AtomicInteger> tokenToObserveNotificationSeqMap = new ConcurrentHashMap<>();
private final OtaPackageDataCache otaPackageDataCache;
private final int chunkSize;
private final int maxResourceBodySize;
public LwM2mTransportCoapResource(OtaPackageDataCache otaPackageDataCache, String name) {
public LwM2mTransportCoapResource(OtaPackageDataCache otaPackageDataCache, String name, int chunkSize, int maxResourceBodySize) {
super(name);
this.otaPackageDataCache = otaPackageDataCache;
this.chunkSize = chunkSize;
this.maxResourceBodySize = maxResourceBodySize;
this.setObservable(true); // enable observing
this.addObserver(new CoapResourceObserver());
}
@ -136,22 +141,29 @@ public class LwM2mTransportCoapResource extends AbstractLwM2mTransportResource {
String idStr = exchange.getRequestOptions().getUriPath().get(exchange.getRequestOptions().getUriPath().size() - 1
);
UUID currentId = UUID.fromString(idStr);
log.info("Start Read ota data (path): [{}]", exchange.getRequestOptions().getUriPath().toString());
Response response = new Response(CoAP.ResponseCode.CONTENT);
byte[] otaData = this.getOtaData(currentId);
if (otaData != null && otaData.length > 0) {
log.debug("Read ota data (length): [{}]", otaData.length);
response.setPayload(otaData);
if (exchange.getRequestOptions().getBlock2() != null) {
int chunkSize = exchange.getRequestOptions().getBlock2().getSzx();
boolean lastFlag = otaData.length <= chunkSize;
if (otaData.length <= this.maxResourceBodySize) {
log.info("Read ota data (length): [{}]", otaData.length);
response.setPayload(otaData);
int chunkSize = calculateSzx(this.chunkSize);
if (exchange.getRequestOptions().hasBlock2()) {
chunkSize = exchange.getRequestOptions().getBlock2().getSzx();
} else if (exchange.getRequestOptions().hasBlock1()) {
chunkSize = exchange.getRequestOptions().getBlock1().getSzx();
}
log.info("With block2 Send currentId: [{}], length: [{}], chunkSize [{}], moreFlag [{}]", currentId.toString(), otaData.length, chunkSize, false);
boolean lastFlag = otaData.length <= this.chunkSize;
response.getOptions().setBlock2(chunkSize, lastFlag, 0);
log.trace("With block2 Send currentId: [{}], length: [{}], chunkSize [{}], moreFlag [{}]", currentId.toString(), otaData.length, chunkSize, lastFlag);
response.setType(CoAP.Type.CON);
exchange.respond(response);
} else {
log.trace("With block1 Send currentId: [{}], length: [{}], ", currentId.toString(), otaData.length);
log.info("Ota package size: [{}] is larger than server's MAX_RESOURCE_BODY_SIZE [{}]", otaData.length, this.maxResourceBodySize);
}
exchange.respond(response);
} else {
log.trace("Ota packaged currentId: [{}] is not found.", currentId.toString());
log.info("Ota packaged currentId: [{}] is not found.", currentId.toString());
}
}

7
common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/utils/LwM2MTransportUtil.java
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@ -393,4 +393,11 @@ public class LwM2MTransportUtil {
serverCoapConfig.set(DTLS_CONNECTION_ID_NODE_ID, null);
}
}
public static int calculateSzx(int size) {
if (size < 16 || size > 1024 || (size & (size - 1)) != 0) {
throw new IllegalArgumentException("Size must be a power of 2 between 16 and 1024.");
}
return (int) (Math.log(size / 16) / Math.log(2));
}
}