Amazon Dashbutton: pcap permission problems

[lipp_markus]

Hi all,
Despite following carefully all instructions here: http://docs.openhab.org/addons/bindings/amazondashbutton/readme.html PaperUI does not find the dashbutton and looking at the error log, it seems that persmissions are not set correctly. The instructions indicate that this very problem should be addressed by the setcap command, but does not seem to work for me. (I am running this on a pi3 with LAN connection)

2017-04-29 17:34:45.131 [ERROR] [nal.capturing.PacketCapturingService] - Capturing packets on device lo failed.
org.pcap4j.core.PcapNativeException: lo: You don't have permission to capture on that device (socket: Operation not permitted)
	at org.pcap4j.core.PcapNetworkInterface.openLive(PcapNetworkInterface.java:258)
	at org.openhab.binding.amazondashbutton.internal.pcap.PcapNetworkInterfaceWrapper.openLive(PcapNetworkInterfaceWrapper.java:68)
	at org.openhab.binding.amazondashbutton.internal.capturing.PacketCapturingService.startCapturing(PacketCapturingService.java:86)
	at org.openhab.binding.amazondashbutton.internal.capturing.PacketCapturingService.startCapturing(PacketCapturingService.java:59)
	at org.openhab.binding.amazondashbutton.internal.discovery.AmazonDashButtonDiscoveryService.startCapturing(AmazonDashButtonDiscoveryService.java:183)
	at org.openhab.binding.amazondashbutton.internal.discovery.AmazonDashButtonDiscoveryService.updateListenerRegistry(AmazonDashButtonDiscoveryService.java:139)
	at org.openhab.binding.amazondashbutton.internal.discovery.AmazonDashButtonDiscoveryService.startScan(AmazonDashButtonDiscoveryService.java:99)
	at org.eclipse.smarthome.config.discovery.AbstractDiscoveryService.startScan(AbstractDiscoveryService.java:199)
	at org.eclipse.smarthome.config.discovery.internal.DiscoveryServiceRegistryImpl.startScan(DiscoveryServiceRegistryImpl.java:382)
	at org.eclipse.smarthome.config.discovery.internal.DiscoveryServiceRegistryImpl.startScans(DiscoveryServiceRegistryImpl.java:367)
	at org.eclipse.smarthome.config.discovery.internal.DiscoveryServiceRegistryImpl.startScan(DiscoveryServiceRegistryImpl.java:216)
	at org.eclipse.smarthome.io.rest.core.discovery.DiscoveryResource.scan(DiscoveryResource.java:84)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)[:1.8.0_131]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)[:1.8.0_131]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[:1.8.0_131]
	at java.lang.reflect.Method.invoke(Method.java:498)[:1.8.0_131]
	at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:144)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:161)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ResponseOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:160)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:99)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:326)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)[160:org.glassfish.jersey.core.jersey-common:2.22.2]
	at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)[160:org.glassfish.jersey.core.jersey-common:2.22.2]
	at org.glassfish.jersey.internal.Errors.process(Errors.java:315)[160:org.glassfish.jersey.core.jersey-common:2.22.2]
	at org.glassfish.jersey.internal.Errors.process(Errors.java:297)[160:org.glassfish.jersey.core.jersey-common:2.22.2]
	at org.glassfish.jersey.internal.Errors.process(Errors.java:267)[160:org.glassfish.jersey.core.jersey-common:2.22.2]
	at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)[160:org.glassfish.jersey.core.jersey-common:2.22.2]
	at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:305)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1154)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:473)[158:org.glassfish.jersey.containers.jersey-container-servlet-core:2.22.2]
	at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:427)[158:org.glassfish.jersey.containers.jersey-container-servlet-core:2.22.2]
	at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:388)[158:org.glassfish.jersey.containers.jersey-container-servlet-core:2.22.2]
	at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:341)[158:org.glassfish.jersey.containers.jersey-container-servlet-core:2.22.2]
	at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:228)[158:org.glassfish.jersey.containers.jersey-container-servlet-core:2.22.2]
	at com.eclipsesource.jaxrs.publisher.internal.ServletContainerBridge.service(ServletContainerBridge.java:76)[12:com.eclipsesource.jaxrs.publisher:5.3.1.201602281253]
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812)[84:org.eclipse.jetty.servlet:9.2.19.v20160908]
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:587)[84:org.eclipse.jetty.servlet:9.2.19.v20160908]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceServletHandler.doHandle(HttpServiceServletHandler.java:71)[175:org.ops4j.pax.web.pax-web-jetty:4.3.0]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)[82:org.eclipse.jetty.security:9.2.19.v20160908]
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceContext.doHandle(HttpServiceContext.java:287)[175:org.ops4j.pax.web.pax-web-jetty:4.3.0]
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)[84:org.eclipse.jetty.servlet:9.2.19.v20160908]
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:80)[175:org.ops4j.pax.web.pax-web-jetty:4.3.0]
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.eclipse.jetty.server.Server.handle(Server.java:499)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)[74:org.eclipse.jetty.io:9.2.19.v20160908]
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)[86:org.eclipse.jetty.util:9.2.19.v20160908]
	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)[86:org.eclipse.jetty.util:9.2.19.v20160908]
	at java.lang.Thread.run(Thread.java:748)[:1.8.0_131]
2017-04-29 17:34:45.228 [ERROR] [nal.capturing.PacketCapturingService] - Capturing packets on device wlan0 failed.
org.pcap4j.core.PcapNativeException: wlan0: You don't have permission to capture on that device (socket: Operation not permitted)
	at org.pcap4j.core.PcapNetworkInterface.openLive(PcapNetworkInterface.java:258)
	at org.openhab.binding.amazondashbutton.internal.pcap.PcapNetworkInterfaceWrapper.openLive(PcapNetworkInterfaceWrapper.java:68)
	at org.openhab.binding.amazondashbutton.internal.capturing.PacketCapturingService.startCapturing(PacketCapturingService.java:86)
	at org.openhab.binding.amazondashbutton.internal.capturing.PacketCapturingService.startCapturing(PacketCapturingService.java:59)
	at org.openhab.binding.amazondashbutton.internal.discovery.AmazonDashButtonDiscoveryService.startCapturing(AmazonDashButtonDiscoveryService.java:183)
	at org.openhab.binding.amazondashbutton.internal.discovery.AmazonDashButtonDiscoveryService.updateListenerRegistry(AmazonDashButtonDiscoveryService.java:139)
	at org.openhab.binding.amazondashbutton.internal.discovery.AmazonDashButtonDiscoveryService.startScan(AmazonDashButtonDiscoveryService.java:99)
	at org.eclipse.smarthome.config.discovery.AbstractDiscoveryService.startScan(AbstractDiscoveryService.java:199)
	at org.eclipse.smarthome.config.discovery.internal.DiscoveryServiceRegistryImpl.startScan(DiscoveryServiceRegistryImpl.java:382)
	at org.eclipse.smarthome.config.discovery.internal.DiscoveryServiceRegistryImpl.startScans(DiscoveryServiceRegistryImpl.java:367)
	at org.eclipse.smarthome.config.discovery.internal.DiscoveryServiceRegistryImpl.startScan(DiscoveryServiceRegistryImpl.java:216)
	at org.eclipse.smarthome.io.rest.core.discovery.DiscoveryResource.scan(DiscoveryResource.java:84)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)[:1.8.0_131]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)[:1.8.0_131]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[:1.8.0_131]
	at java.lang.reflect.Method.invoke(Method.java:498)[:1.8.0_131]
	at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:144)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:161)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ResponseOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:160)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:99)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:326)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)[160:org.glassfish.jersey.core.jersey-common:2.22.2]
	at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)[160:org.glassfish.jersey.core.jersey-common:2.22.2]
	at org.glassfish.jersey.internal.Errors.process(Errors.java:315)[160:org.glassfish.jersey.core.jersey-common:2.22.2]
	at org.glassfish.jersey.internal.Errors.process(Errors.java:297)[160:org.glassfish.jersey.core.jersey-common:2.22.2]
	at org.glassfish.jersey.internal.Errors.process(Errors.java:267)[160:org.glassfish.jersey.core.jersey-common:2.22.2]
	at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)[160:org.glassfish.jersey.core.jersey-common:2.22.2]
	at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:305)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1154)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:473)[158:org.glassfish.jersey.containers.jersey-container-servlet-core:2.22.2]
	at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:427)[158:org.glassfish.jersey.containers.jersey-container-servlet-core:2.22.2]
	at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:388)[158:org.glassfish.jersey.containers.jersey-container-servlet-core:2.22.2]
	at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:341)[158:org.glassfish.jersey.containers.jersey-container-servlet-core:2.22.2]
	at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:228)[158:org.glassfish.jersey.containers.jersey-container-servlet-core:2.22.2]
	at com.eclipsesource.jaxrs.publisher.internal.ServletContainerBridge.service(ServletContainerBridge.java:76)[12:com.eclipsesource.jaxrs.publisher:5.3.1.201602281253]
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812)[84:org.eclipse.jetty.servlet:9.2.19.v20160908]
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:587)[84:org.eclipse.jetty.servlet:9.2.19.v20160908]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceServletHandler.doHandle(HttpServiceServletHandler.java:71)[175:org.ops4j.pax.web.pax-web-jetty:4.3.0]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)[82:org.eclipse.jetty.security:9.2.19.v20160908]
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceContext.doHandle(HttpServiceContext.java:287)[175:org.ops4j.pax.web.pax-web-jetty:4.3.0]
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)[84:org.eclipse.jetty.servlet:9.2.19.v20160908]
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:80)[175:org.ops4j.pax.web.pax-web-jetty:4.3.0]
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.eclipse.jetty.server.Server.handle(Server.java:499)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)[74:org.eclipse.jetty.io:9.2.19.v20160908]
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)[86:org.eclipse.jetty.util:9.2.19.v20160908]
	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)[86:org.eclipse.jetty.util:9.2.19.v20160908]
	at java.lang.Thread.run(Thread.java:748)[:1.8.0_131]
2017-04-29 17:34:45.293 [ERROR] [nal.capturing.PacketCapturingService] - Capturing packets on device eth0 failed.
org.pcap4j.core.PcapNativeException: eth0: You don't have permission to capture on that device (socket: Operation not permitted)
	at org.pcap4j.core.PcapNetworkInterface.openLive(PcapNetworkInterface.java:258)
	at org.openhab.binding.amazondashbutton.internal.pcap.PcapNetworkInterfaceWrapper.openLive(PcapNetworkInterfaceWrapper.java:68)
	at org.openhab.binding.amazondashbutton.internal.capturing.PacketCapturingService.startCapturing(PacketCapturingService.java:86)
	at org.openhab.binding.amazondashbutton.internal.capturing.PacketCapturingService.startCapturing(PacketCapturingService.java:59)
	at org.openhab.binding.amazondashbutton.internal.discovery.AmazonDashButtonDiscoveryService.startCapturing(AmazonDashButtonDiscoveryService.java:183)
	at org.openhab.binding.amazondashbutton.internal.discovery.AmazonDashButtonDiscoveryService.updateListenerRegistry(AmazonDashButtonDiscoveryService.java:139)
	at org.openhab.binding.amazondashbutton.internal.discovery.AmazonDashButtonDiscoveryService.startScan(AmazonDashButtonDiscoveryService.java:99)
	at org.eclipse.smarthome.config.discovery.AbstractDiscoveryService.startScan(AbstractDiscoveryService.java:199)
	at org.eclipse.smarthome.config.discovery.internal.DiscoveryServiceRegistryImpl.startScan(DiscoveryServiceRegistryImpl.java:382)
	at org.eclipse.smarthome.config.discovery.internal.DiscoveryServiceRegistryImpl.startScans(DiscoveryServiceRegistryImpl.java:367)
	at org.eclipse.smarthome.config.discovery.internal.DiscoveryServiceRegistryImpl.startScan(DiscoveryServiceRegistryImpl.java:216)
	at org.eclipse.smarthome.io.rest.core.discovery.DiscoveryResource.scan(DiscoveryResource.java:84)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)[:1.8.0_131]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)[:1.8.0_131]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[:1.8.0_131]
	at java.lang.reflect.Method.invoke(Method.java:498)[:1.8.0_131]
	at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:144)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:161)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ResponseOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:160)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:99)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:326)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)[160:org.glassfish.jersey.core.jersey-common:2.22.2]
	at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)[160:org.glassfish.jersey.core.jersey-common:2.22.2]
	at org.glassfish.jersey.internal.Errors.process(Errors.java:315)[160:org.glassfish.jersey.core.jersey-common:2.22.2]
	at org.glassfish.jersey.internal.Errors.process(Errors.java:297)[160:org.glassfish.jersey.core.jersey-common:2.22.2]
	at org.glassfish.jersey.internal.Errors.process(Errors.java:267)[160:org.glassfish.jersey.core.jersey-common:2.22.2]
	at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)[160:org.glassfish.jersey.core.jersey-common:2.22.2]
	at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:305)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1154)[161:org.glassfish.jersey.core.jersey-server:2.22.2]
	at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:473)[158:org.glassfish.jersey.containers.jersey-container-servlet-core:2.22.2]
	at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:427)[158:org.glassfish.jersey.containers.jersey-container-servlet-core:2.22.2]
	at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:388)[158:org.glassfish.jersey.containers.jersey-container-servlet-core:2.22.2]
	at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:341)[158:org.glassfish.jersey.containers.jersey-container-servlet-core:2.22.2]
	at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:228)[158:org.glassfish.jersey.containers.jersey-container-servlet-core:2.22.2]
	at com.eclipsesource.jaxrs.publisher.internal.ServletContainerBridge.service(ServletContainerBridge.java:76)[12:com.eclipsesource.jaxrs.publisher:5.3.1.201602281253]
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812)[84:org.eclipse.jetty.servlet:9.2.19.v20160908]
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:587)[84:org.eclipse.jetty.servlet:9.2.19.v20160908]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceServletHandler.doHandle(HttpServiceServletHandler.java:71)[175:org.ops4j.pax.web.pax-web-jetty:4.3.0]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)[82:org.eclipse.jetty.security:9.2.19.v20160908]
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceContext.doHandle(HttpServiceContext.java:287)[175:org.ops4j.pax.web.pax-web-jetty:4.3.0]
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)[84:org.eclipse.jetty.servlet:9.2.19.v20160908]
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:80)[175:org.ops4j.pax.web.pax-web-jetty:4.3.0]
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.eclipse.jetty.server.Server.handle(Server.java:499)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)[83:org.eclipse.jetty.server:9.2.19.v20160908]
	at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)[74:org.eclipse.jetty.io:9.2.19.v20160908]
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)[86:org.eclipse.jetty.util:9.2.19.v20160908]
	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)[86:org.eclipse.jetty.util:9.2.19.v20160908]
	at java.lang.Thread.run(Thread.java:748)[:1.8.0_131]

Would you have any pointers what I could do about it or how to troubleshoot this?
Thanks in advance?

[steve1]

@lipp_markus

this very problem should be addressed by the setcap command, but does not seem to work for me.

This is probably the issue. You’ll need to provide some details about the problems you had with setcap.

[lipp_markus]

Thanks @steve1 appreciate you picking up on that.
I played some more, read some more; it appears that a full restart of the pi is necessary to pick up the new permission settings. As a last resort, I did just that (full restart of pi not just OH2) and my dashbutton was discovered, no problem. Might this be a worthwhile addition to the documentation?
thanks again

[dominicdesu (Dominic Lerbs)]

@lipp_markus

it appears that a full restart of the pi is necessary to pick up the new permission settings. As a last resort, I did just that (full restart of pi not just OH2) and my dashbutton was discovered, no problem.

Had the same issue, for me it was enough to just restart openHAB after setting the permissions.

[masterAndrey (Andrey Sorokin)]

I set capabilities INSIDE docker
setcap ‘cap_net_raw,cap_net_admin=+eip cap_net_bind_service=+ep’
$(realpath /usr/bin/java)

getcap shows that everything is ok.

but have the same problem:

2018-01-12 17:46:36.665 [ERROR] [nal.capturing.PacketCapturingService] - Capturing packets on device docker0 failed.
org.pcap4j.core.PcapNativeException: docker0: You don’t have permission to capture on that device (socket: Operation not permitted)
at org.pcap4j.core.PcapNetworkInterface.openLive(PcapNetworkInterface.java:258) [203:org.openhab.binding.amazondashbutton:2.2.0]
at org.openhab.binding.amazondashbutton.internal.pcap.PcapNetworkInterfaceWrapper.openLive(PcapNetworkInterfaceWrapper.java:68) [203:org.openhab.binding.amazondashbutton:2.2.0]
at org.openhab.binding.amazondashbutton.internal.capturing.PacketCapturingService.startCapturing(PacketCapturingService.java:86) [203:org.openhab.binding.amazondashbutton:2.2.0]
at org.openhab.binding.amazondashbutton.handler.AmazonDashButtonHandler$1.run(AmazonDashButtonHandler.java:70) [203:org.openhab.binding.amazondashbutton:2.2.0]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:?]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:?]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) [?:?]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) [?:?]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:?]
at java.lang.Thread.run(Thread.java:748) [?:?]

may be the problem that setcap does not have effect inside Docker?

I cannot use docker command line --cap-add as recommended in the doc because I run docker container from GUI on my NAS and do not have control over the command line - only the GUI options like ‘run in host networks’ and ‘run as priviledged’.