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#pragma once
#include <AK/HashMap.h>
#include <AK/SinglyLinkedList.h>
#include <Kernel/DoubleBuffer.h>
#include <Kernel/KBuffer.h>
#include <Kernel/Lock.h>
#include <Kernel/Net/IPv4.h>
#include <Kernel/Net/IPv4SocketTuple.h>
#include <Kernel/Net/Socket.h>
class NetworkAdapter;
class TCPPacket;
class TCPSocket;
class IPv4Socket : public Socket {
public:
static NonnullRefPtr<IPv4Socket> create(int type, int protocol);
virtual ~IPv4Socket() override;
static Lockable<HashTable<IPv4Socket*>>& all_sockets();
virtual KResult bind(const sockaddr*, socklen_t) override;
virtual KResult connect(FileDescription&, const sockaddr*, socklen_t, ShouldBlock = ShouldBlock::Yes) override;
virtual KResult listen(int) override;
virtual bool get_local_address(sockaddr*, socklen_t*) override;
virtual bool get_peer_address(sockaddr*, socklen_t*) override;
virtual void attach(FileDescription&) override;
virtual void detach(FileDescription&) override;
virtual bool can_read(FileDescription&) const override;
virtual bool can_write(FileDescription&) const override;
virtual ssize_t sendto(FileDescription&, const void*, size_t, int, const sockaddr*, socklen_t) override;
virtual ssize_t recvfrom(FileDescription&, void*, size_t, int flags, sockaddr*, socklen_t*) override;
void did_receive(const IPv4Address& peer_address, u16 peer_port, KBuffer&&);
const IPv4Address& local_address() const { return m_local_address; }
u16 local_port() const { return m_local_port; }
void set_local_port(u16 port) { m_local_port = port; }
bool has_specific_local_address() { return m_local_address.to_u32() != 0; }
const IPv4Address& peer_address() const { return m_peer_address; }
u16 peer_port() const { return m_peer_port; }
void set_peer_port(u16 port) { m_peer_port = port; }
IPv4SocketTuple tuple() const { return IPv4SocketTuple(m_local_address, m_local_port, m_peer_address, m_peer_port); }
String absolute_path(const FileDescription& description) const override;
protected:
IPv4Socket(int type, int protocol);
virtual const char* class_name() const override { return "IPv4Socket"; }
int allocate_local_port_if_needed();
virtual KResult protocol_bind() { return KSuccess; }
virtual KResult protocol_listen() { return KSuccess; }
virtual int protocol_receive(const KBuffer&, void*, size_t, int) { return -ENOTIMPL; }
virtual int protocol_send(const void*, int) { return -ENOTIMPL; }
virtual KResult protocol_connect(FileDescription&, ShouldBlock) { return KSuccess; }
virtual int protocol_allocate_local_port() { return 0; }
virtual bool protocol_is_disconnected() const { return false; }
void set_local_address(IPv4Address address) { m_local_address = address; }
void set_peer_address(IPv4Address address) { m_peer_address = address; }
private:
virtual bool is_ipv4() const override { return true; }
IPv4Address m_local_address;
IPv4Address m_peer_address;
struct ReceivedPacket {
IPv4Address peer_address;
u16 peer_port;
Optional<KBuffer> data;
};
SinglyLinkedList<ReceivedPacket> m_receive_queue;
u16 m_local_port { 0 };
u16 m_peer_port { 0 };
u32 m_bytes_received { 0 };
bool m_can_read { false };
};
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