Start of repeater role with in firmware

src/modules/RepeaterModule.cpp

@@ -0,0 +1,27 @@
+#include "RepeaterModule.h"
+#include "MeshService.h"
+#include "NodeDB.h"
+#include "Router.h"
+#include "configuration.h"
+#include "main.h"
+
+RepeaterModule *repeaterModule;
+
+bool RepeaterModule::handleReceivedProtobuf(const meshtastic_MeshPacket &mp, meshtastic_Routing *r)
+{
+    printPacket("Repeater rebroadcasting", &mp);
+    meshtastic_MeshPacket *p = const_cast<meshtastic_MeshPacket *>(&mp);
+    router->send(p);
+    return true;
+}
+
+meshtastic_MeshPacket *RepeaterModule::allocReply()
+{
+    return NULL;
+}
+
+RepeaterModule::RepeaterModule() : ProtobufModule("repeater", meshtastic_PortNum_ROUTING_APP, &meshtastic_Routing_msg)
+{
+    isPromiscuous = true;
+    encryptedOk = true;
+}

src/modules/RepeaterModule.h

@@ -0,0 +1,31 @@
+#pragma once
+#include "Channels.h"
+#include "ProtobufModule.h"
+
+/**
+ * Routing module for router control messages
+ */
+class RepeaterModule : public ProtobufModule<meshtastic_Routing>
+{
+public:
+  /** Constructor
+   * name is for debugging output
+   */
+  RepeaterModule();
+
+protected:
+  /** Called to handle a particular incoming message
+
+  @return true if you've guaranteed you've handled this message and no other handlers should be considered for it
+  */
+  virtual bool handleReceivedProtobuf(const meshtastic_MeshPacket &mp, meshtastic_Routing *p) override;
+
+  /** Messages can be received that have the want_response bit set.  If set, this callback will be invoked
+   * so that subclasses can (optionally) send a response back to the original sender.  */
+  virtual meshtastic_MeshPacket *allocReply() override;
+
+  /// Override wantPacket to say we want to see all packets, not just those for our port number
+  virtual bool wantPacket(const meshtastic_MeshPacket *p) override { return true; }
+};
+
+extern RepeaterModule *repeaterModule;