From 427f9b191f471e13fcd916cac02df02f32c05651 Mon Sep 17 00:00:00 2001
From: nickAS21 <nick@thingsboard.io>
Date: Thu, 20 Jan 2022 15:27:10 +0200
Subject: [PATCH] lwm2m: add bootstrap DTLS config - SERVER_ONLY

---
 .../lwm2m/bootstrap/LwM2MTransportBootstrapService.java        | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/bootstrap/LwM2MTransportBootstrapService.java b/common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/bootstrap/LwM2MTransportBootstrapService.java
index 183febcc79..ff40289884 100644
--- a/common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/bootstrap/LwM2MTransportBootstrapService.java
+++ b/common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/bootstrap/LwM2MTransportBootstrapService.java
@@ -32,7 +32,6 @@ import org.thingsboard.server.transport.lwm2m.bootstrap.store.LwM2MBootstrapSecu
 import org.thingsboard.server.transport.lwm2m.bootstrap.store.LwM2MInMemoryBootstrapConfigStore;
 import org.thingsboard.server.transport.lwm2m.config.LwM2MTransportBootstrapConfig;
 import org.thingsboard.server.transport.lwm2m.config.LwM2MTransportServerConfig;
-import org.thingsboard.server.transport.lwm2m.server.DefaultLwM2mTransportService;
 
 import javax.annotation.PostConstruct;
 import javax.annotation.PreDestroy;
@@ -84,6 +83,8 @@ public class LwM2MTransportBootstrapService {
 
         /* Create and Set DTLS Config */
         DtlsConnectorConfig.Builder dtlsConfig = new DtlsConnectorConfig.Builder(getCoapConfig(bootstrapConfig.getPort(), bootstrapConfig.getSecurePort(), serverConfig));
+
+        dtlsConfig.set(DtlsConfig.DTLS_ROLE, DtlsConfig.DtlsRole.SERVER_ONLY);
         dtlsConfig.set(DTLS_RECOMMENDED_CURVES_ONLY, serverConfig.isRecommendedSupportedGroups());
         dtlsConfig.set(DTLS_RECOMMENDED_CIPHER_SUITES_ONLY, serverConfig.isRecommendedCiphers());