From dc966782b5cf59559944c4bb8fa595180853a0fd Mon Sep 17 00:00:00 2001
From: Robert <robert.altner@stud.htwk-leipzig.de>
Date: Sat, 1 Jul 2023 14:39:27 +0200
Subject: [PATCH] randomize MACs

---
 gui/src/main.cpp          |  4 +++-
 netsim/include/Device.hpp | 11 ++++++++++-
 netsim/src/Device.cpp     |  5 +++--
 3 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/gui/src/main.cpp b/gui/src/main.cpp
index e17a6ae..43c1c12 100644
--- a/gui/src/main.cpp
+++ b/gui/src/main.cpp
@@ -1,4 +1,5 @@
 #include <iostream>
+#include <random>
 
 #include <SDL.h>
 #include "imgui.h"
@@ -9,6 +10,7 @@
 #include "NetworkRenderer.hpp"
 
 int main(int argc, char** argv) {
+    srand(time(NULL));
     SDL_Init(SDL_INIT_VIDEO);
 
     SDL_Window* window;
@@ -64,7 +66,7 @@ int main(int argc, char** argv) {
 
             if (ImGui::BeginMenu("New...")) {
                 if (ImGui::MenuItem("Host")) {
-                    auto device = Device::create("12:34:56:78:9A:BC");
+                    auto device = Device::create();
 
                     network.addDevice(device);
                     networkRenderer.AddDevice(device, 400, 400);
diff --git a/netsim/include/Device.hpp b/netsim/include/Device.hpp
index c31929d..096141e 100644
--- a/netsim/include/Device.hpp
+++ b/netsim/include/Device.hpp
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <cstdint>
+#include <array>
 #include <string>
 #include <memory>
 
@@ -10,7 +11,15 @@ public:
 
 public:
     Device(const std::string& macAddress);
-    static std::shared_ptr<Device> create(const std::string& macAddress);
+    Device(uint8_t a, uint8_t b, uint8_t c, uint8_t d, uint8_t e, uint8_t f);
+
+    inline static std::shared_ptr<Device> create(const std::string& macAddress) {
+        return std::make_shared<Device>(macAddress);
+    }
+
+    inline static std::shared_ptr<Device> create() {
+        return std::make_shared<Device>(rand() % 256, rand() % 256, rand() % 256, rand() % 256, rand() % 256, rand() % 256);
+    }
 
 private:
     void parseAndSetMac(const std::string& macAddress);
diff --git a/netsim/src/Device.cpp b/netsim/src/Device.cpp
index 0b3e12e..fbfdf36 100644
--- a/netsim/src/Device.cpp
+++ b/netsim/src/Device.cpp
@@ -7,8 +7,9 @@ Device::Device(const std::string& macAddress) {
     parseAndSetMac(macAddress);
 }
 
-std::shared_ptr<Device> Device::create(const std::string& macAddress) {
-    return std::make_shared<Device>(macAddress);
+Device::Device(uint8_t a, uint8_t b, uint8_t c, uint8_t d, uint8_t e, uint8_t f) :
+    macAddress{a, b, c, d, e, f}
+{
 }
 
 void Device::parseAndSetMac(const std::string& mac) {