Kernel/LibC: Implement basic socket binding

kernel/include/kernel/Networking/NetworkInterface.h

@@ -35,6 +35,8 @@ namespace Kernel
 
 		const dev_t m_rdev;
 		char m_name[10];
+
+		uint32_t m_ipv4_address {};
 	};
 
 }

kernel/include/kernel/Networking/NetworkManager.h

@@ -6,6 +6,8 @@
 #include <kernel/Networking/NetworkSocket.h>
 #include <kernel/PCI.h>
 
+#include <netinet/in.h>
+
 namespace Kernel
 {
 
@@ -24,7 +26,9 @@ namespace Kernel
 		static NetworkManager& get();
 
 		BAN::ErrorOr<void> add_interface(PCI::Device& pci_device);
-		BAN::ErrorOr<void> bind_socket(int port, BAN::RefPtr<NetworkSocket>);
+
+		void unbind_socket(uint16_t port, BAN::RefPtr<NetworkSocket>);
+		BAN::ErrorOr<void> bind_socket(uint16_t port, BAN::RefPtr<NetworkSocket>);
 
 		BAN::ErrorOr<BAN::RefPtr<NetworkSocket>> create_socket(SocketType, mode_t, uid_t, gid_t);
 
@@ -33,7 +37,7 @@ namespace Kernel
 
 	private:
 		BAN::Vector<BAN::RefPtr<NetworkInterface>>		m_interfaces;
-		BAN::HashMap<int, BAN::RefPtr<NetworkSocket>>	m_bound_sockets;
+		BAN::HashMap<int, BAN::WeakPtr<NetworkSocket>>	m_bound_sockets;
 	};
 
 }

kernel/include/kernel/Networking/NetworkSocket.h

@@ -1,21 +1,28 @@
 #pragma once
 
+#include <BAN/WeakPtr.h>
 #include <kernel/FS/TmpFS/Inode.h>
 #include <kernel/Networking/NetworkInterface.h>
 
 namespace Kernel
 {
 
-	class NetworkSocket : public TmpInode
+	class NetworkSocket : public TmpInode, public BAN::Weakable<NetworkSocket>
 	{
 	public:
-		void bind_interface(NetworkInterface*);
+		void bind_interface_and_port(NetworkInterface*, uint16_t port);
+		~NetworkSocket();
 
 	protected:
 		NetworkSocket(mode_t mode, uid_t uid, gid_t gid);
 
+		virtual void on_close_impl() override;
+
+		virtual BAN::ErrorOr<void> bind_impl(const sockaddr* address, socklen_t address_len) override;
+
 	protected:
-		NetworkInterface* m_interface = nullptr;
+		NetworkInterface*	m_interface = nullptr;
+		uint16_t			m_port = 0;
 	};
 
 }