2019-03-14 11:20:38 +00:00
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#pragma once
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2019-08-06 13:40:38 +00:00
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#include <AK/Function.h>
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2019-08-09 02:34:32 +00:00
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#include <AK/WeakPtr.h>
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2019-04-02 17:54:38 +00:00
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#include <Kernel/Net/IPv4Socket.h>
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2019-03-14 11:20:38 +00:00
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class TCPSocket final : public IPv4Socket {
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public:
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2019-08-09 10:26:29 +00:00
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static void for_each(Function<void(TCPSocket&)>);
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2019-06-21 16:37:47 +00:00
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static NonnullRefPtr<TCPSocket> create(int protocol);
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2019-03-14 11:20:38 +00:00
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virtual ~TCPSocket() override;
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2019-08-09 02:48:28 +00:00
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enum class Direction {
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Unspecified,
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Outgoing,
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Incoming,
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Passive,
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};
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static const char* to_string(Direction direction)
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{
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switch (direction) {
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case Direction::Unspecified:
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return "Unspecified";
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case Direction::Outgoing:
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return "Outgoing";
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case Direction::Incoming:
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return "Incoming";
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case Direction::Passive:
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return "Passive";
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default:
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return "None";
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}
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}
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2019-06-07 15:13:23 +00:00
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enum class State {
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2019-08-06 13:40:38 +00:00
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Closed,
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Listen,
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SynSent,
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SynReceived,
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Established,
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CloseWait,
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LastAck,
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FinWait1,
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FinWait2,
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Closing,
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TimeWait,
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2019-03-14 11:20:38 +00:00
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};
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2019-08-06 13:40:38 +00:00
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static const char* to_string(State state)
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{
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switch (state) {
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case State::Closed:
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return "Closed";
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case State::Listen:
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return "Listen";
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case State::SynSent:
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return "SynSent";
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case State::SynReceived:
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return "SynReceived";
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case State::Established:
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return "Established";
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case State::CloseWait:
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return "CloseWait";
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case State::LastAck:
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return "LastAck";
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case State::FinWait1:
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return "FinWait1";
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case State::FinWait2:
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return "FinWait2";
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case State::Closing:
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return "Closing";
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case State::TimeWait:
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return "TimeWait";
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default:
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return "None";
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}
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}
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2019-08-10 03:18:18 +00:00
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enum class Error {
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None,
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FINDuringConnect,
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RSTDuringConnect,
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UnexpectedFlagsDuringConnect,
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};
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static const char* to_string(Error error)
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{
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switch (error) {
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case Error::None:
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return "None";
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case Error::FINDuringConnect:
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return "FINDuringConnect";
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case Error::RSTDuringConnect:
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return "RSTDuringConnect";
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case Error::UnexpectedFlagsDuringConnect:
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return "UnexpectedFlagsDuringConnect";
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default:
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return "Invalid";
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}
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}
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2019-03-14 11:20:38 +00:00
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State state() const { return m_state; }
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2019-08-10 03:14:00 +00:00
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void set_state(State state);
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2019-03-14 11:20:38 +00:00
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2019-08-09 02:48:28 +00:00
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Direction direction() const { return m_direction; }
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2019-08-10 03:18:18 +00:00
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bool has_error() const { return m_error != Error::None; }
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Error error() const { return m_error; }
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void set_error(Error error) { m_error = error; }
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2019-07-03 19:17:35 +00:00
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void set_ack_number(u32 n) { m_ack_number = n; }
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void set_sequence_number(u32 n) { m_sequence_number = n; }
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u32 ack_number() const { return m_ack_number; }
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u32 sequence_number() const { return m_sequence_number; }
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2019-08-08 02:32:35 +00:00
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u32 packets_in() const { return m_packets_in; }
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u32 bytes_in() const { return m_bytes_in; }
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u32 packets_out() const { return m_packets_out; }
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u32 bytes_out() const { return m_bytes_out; }
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2019-03-14 11:20:38 +00:00
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2019-07-03 19:17:35 +00:00
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void send_tcp_packet(u16 flags, const void* = nullptr, int = 0);
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2019-08-08 02:32:35 +00:00
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void record_incoming_data(int);
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2019-03-14 11:20:38 +00:00
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2019-08-06 13:40:38 +00:00
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static Lockable<HashMap<IPv4SocketTuple, TCPSocket*>>& sockets_by_tuple();
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2019-09-08 07:16:40 +00:00
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static RefPtr<TCPSocket> from_tuple(const IPv4SocketTuple& tuple);
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static RefPtr<TCPSocket> from_endpoints(const IPv4Address& local_address, u16 local_port, const IPv4Address& peer_address, u16 peer_port);
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2019-03-14 11:28:30 +00:00
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2019-09-08 07:16:40 +00:00
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RefPtr<TCPSocket> create_client(const IPv4Address& local_address, u16 local_port, const IPv4Address& peer_address, u16 peer_port);
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2019-09-08 07:18:28 +00:00
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void set_originator(RefPtr<TCPSocket> originator) { m_originator = originator; }
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void release_to_originator();
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void release_for_accept(RefPtr<TCPSocket>);
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2019-08-09 02:48:28 +00:00
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protected:
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void set_direction(Direction direction) { m_direction = direction; }
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2019-03-14 11:20:38 +00:00
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private:
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explicit TCPSocket(int protocol);
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2019-05-03 18:42:43 +00:00
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virtual const char* class_name() const override { return "TCPSocket"; }
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2019-03-14 11:20:38 +00:00
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2019-07-03 19:17:35 +00:00
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static NetworkOrdered<u16> compute_tcp_checksum(const IPv4Address& source, const IPv4Address& destination, const TCPPacket&, u16 payload_size);
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2019-03-14 11:20:38 +00:00
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2019-08-04 19:07:50 +00:00
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virtual int protocol_receive(const KBuffer&, void* buffer, size_t buffer_size, int flags) override;
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2019-03-14 11:20:38 +00:00
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virtual int protocol_send(const void*, int) override;
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2019-06-07 07:36:51 +00:00
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virtual KResult protocol_connect(FileDescription&, ShouldBlock) override;
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2019-05-04 14:40:34 +00:00
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virtual int protocol_allocate_local_port() override;
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2019-03-14 14:23:32 +00:00
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virtual bool protocol_is_disconnected() const override;
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2019-05-03 19:51:40 +00:00
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virtual KResult protocol_bind() override;
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2019-08-06 13:40:38 +00:00
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virtual KResult protocol_listen() override;
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2019-03-14 11:20:38 +00:00
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2019-09-08 07:18:28 +00:00
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RefPtr<TCPSocket> m_originator;
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HashMap<IPv4SocketTuple, NonnullRefPtr<TCPSocket>> m_pending_release_for_accept;
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2019-08-09 02:48:28 +00:00
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Direction m_direction { Direction::Unspecified };
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2019-08-10 03:18:18 +00:00
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Error m_error { Error::None };
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2019-08-09 02:34:32 +00:00
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WeakPtr<NetworkAdapter> m_adapter;
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2019-07-03 19:17:35 +00:00
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u32 m_sequence_number { 0 };
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u32 m_ack_number { 0 };
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2019-08-06 13:40:38 +00:00
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State m_state { State::Closed };
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2019-08-08 02:32:35 +00:00
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u32 m_packets_in { 0 };
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u32 m_bytes_in { 0 };
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u32 m_packets_out { 0 };
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u32 m_bytes_out { 0 };
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2019-03-14 11:20:38 +00:00
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};
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