--wtf; prevent roots from TCP fallback

node/Node.cpp

@@ -321,8 +321,8 @@ ZT_ResultCode Node::processBackgroundTasks(uint64_t now,volatile uint64_t *nextB
 			RR->topology->eachPeer<_PingPeersThatNeedPing &>(pfunc);
 
 			// Update online status, post status change as event
-			bool oldOnline = _online;
-			_online = ((now - pfunc.lastReceiveFromUpstream) < ZT_PEER_ACTIVITY_TIMEOUT);
+			const bool oldOnline = _online;
+			_online = (((now - pfunc.lastReceiveFromUpstream) < ZT_PEER_ACTIVITY_TIMEOUT)||(RR->topology->amRoot()));
 			if (oldOnline != _online)
 				postEvent(_online ? ZT_EVENT_ONLINE : ZT_EVENT_OFFLINE);
 		} catch ( ... ) {

service/OneService.cpp

@@ -867,6 +867,7 @@ public:
 	{
 #ifdef ZT_ENABLE_CLUSTER
 		if (sock == _clusterMessageSocket) {
+			_lastDirectReceiveFromGlobal = OSUtils::now();
 			_node->clusterHandleIncomingMessage(data,len);
 			return;
 		}
@@ -1030,7 +1031,7 @@ public:
 							if (from) {
 								ZT_ResultCode rc = _node->processWirePacket(
 									OSUtils::now(),
-									0,
+									&ZT_SOCKADDR_NULL,
 									reinterpret_cast<struct sockaddr_storage *>(&from),
 									data,
 									plen,