Kernel: Move networking related files into Kernel/Net/.

Kernel/Net/MACAddress.h

@@ -0,0 +1,47 @@
+#pragma once
+
+#include <AK/Assertions.h>
+#include <AK/AKString.h>
+#include <AK/Types.h>
+#include <Kernel/StdLib.h>
+
+class [[gnu::packed]] MACAddress {
+public:
+    MACAddress() { }
+    MACAddress(const byte data[6])
+    {
+        memcpy(m_data, data, 6);
+    }
+    ~MACAddress() { }
+
+    byte operator[](int i) const
+    {
+        ASSERT(i >= 0 && i < 6);
+        return m_data[i];
+    }
+
+    bool operator==(const MACAddress& other) const
+    {
+        return !memcmp(m_data, other.m_data, sizeof(m_data));
+    }
+
+    String to_string() const
+    {
+        return String::format("%b:%b:%b:%b:%b:%b", m_data[0], m_data[1], m_data[2], m_data[3], m_data[4], m_data[5]);
+    }
+
+private:
+    byte m_data[6];
+};
+
+static_assert(sizeof(MACAddress) == 6);
+
+namespace AK {
+
+template<>
+struct Traits<MACAddress> {
+    static unsigned hash(const MACAddress& address) { return string_hash((const char*)&address, sizeof(address)); }
+    static void dump(const MACAddress& address) { kprintf("%s", address.to_string().characters()); }
+};
+
+}