Reset nodedb wiring (#1724)

src/mesh/NodeDB.cpp

@@ -225,13 +225,20 @@ void NodeDB::installDefaultChannels()
     channelFile.version = DEVICESTATE_CUR_VER;
 }
 
+void NodeDB::resetNodes()
+{
+    devicestate.node_db_count = 0;
+    memset(devicestate.node_db, 0, sizeof(devicestate.node_db));
+    saveDeviceStateToDisk();
+}
+
 void NodeDB::installDefaultDeviceState()
 {
     DEBUG_MSG("Installing default DeviceState\n");
     memset(&devicestate, 0, sizeof(DeviceState));
 
-    *numNodes = 0; // Forget node DB
-
+    *numNodes = 0;
+    
     // init our devicestate with valid flags so protobuf writing/reading will work
     devicestate.has_my_node = true;
     devicestate.has_owner = true;

src/mesh/NodeDB.h

@@ -115,7 +115,7 @@ class NodeDB
     /// Return the number of nodes we've heard from recently (within the last 2 hrs?)
     size_t getNumOnlineNodes();
 
-    void initConfigIntervals(), initModuleConfigIntervals();
+    void initConfigIntervals(), initModuleConfigIntervals(), resetNodes();
     
     bool factoryReset();
 

src/modules/AdminModule.cpp

@@ -120,6 +120,12 @@ bool AdminModule::handleReceivedProtobuf(const MeshPacket &mp, AdminMessage *r)
         rebootAtMsec = millis() + (5 * 1000);
         break;
     }
+    case AdminMessage_nodedb_reset_tag: {
+        DEBUG_MSG("Initiating node-db reset\n");
+        nodeDB.resetNodes();
+        rebootAtMsec = millis() + (5 * 1000);
+        break;
+    }
 #ifdef ARCH_PORTDUINO
     case AdminMessage_exit_simulator_tag:
         DEBUG_MSG("Exiting simulator\n");