Kernel: Add a simple MACAddress class.

Kernel/MACAddress.h

@@ -0,0 +1,27 @@
+#pragma once
+
+#include <AK/Assertions.h>
+#include <AK/Types.h>
+#include <Kernel/StdLib.h>
+
+class MACAddress {
+public:
+    MACAddress() { }
+    MACAddress(const byte data[6])
+        : m_valid(true)
+    {
+        memcpy(m_data, data, 6);
+    }
+    ~MACAddress() { }
+
+    bool is_valid() const { return m_valid; }
+    byte operator[](int i) const
+    {
+        ASSERT(i >= 0 && i < 6);
+        return m_data[i];
+    }
+
+private:
+    byte m_data[6];
+    bool m_valid { false };
+};