1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
#pragma once
#include <Kernel/Net/Socket.h>
#include <Kernel/DoubleBuffer.h>
#include <Kernel/Net/IPv4.h>
#include <AK/HashMap.h>
#include <Kernel/Lock.h>
#include <AK/SinglyLinkedList.h>
class IPv4SocketHandle;
class TCPSocketHandle;
class NetworkAdapter;
class TCPPacket;
class TCPSocket;
class IPv4Socket : public Socket {
public:
static Retained<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(FileDescriptor&, const sockaddr*, socklen_t, ShouldBlock = ShouldBlock::Yes) override;
virtual bool get_local_address(sockaddr*, socklen_t*) override;
virtual bool get_peer_address(sockaddr*, socklen_t*) override;
virtual void attach(FileDescriptor&) override;
virtual void detach(FileDescriptor&) override;
virtual bool can_read(FileDescriptor&) const override;
virtual ssize_t read(FileDescriptor&, byte*, ssize_t) override;
virtual ssize_t write(FileDescriptor&, const byte*, ssize_t) override;
virtual bool can_write(FileDescriptor&) const override;
virtual ssize_t sendto(FileDescriptor&, const void*, size_t, int, const sockaddr*, socklen_t) override;
virtual ssize_t recvfrom(FileDescriptor&, void*, size_t, int flags, sockaddr*, socklen_t*) override;
void did_receive(const IPv4Address& peer_address, word peer_port, ByteBuffer&&);
const IPv4Address& local_address() const;
word local_port() const { return m_local_port; }
void set_local_port(word port) { m_local_port = port; }
const IPv4Address& peer_address() const { return m_peer_address; }
word peer_port() const { return m_peer_port; }
void set_peer_port(word port) { m_peer_port = port; }
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 int protocol_receive(const ByteBuffer&, void*, size_t, int, sockaddr*, socklen_t*) { return -ENOTIMPL; }
virtual int protocol_send(const void*, int) { return -ENOTIMPL; }
virtual KResult protocol_connect(FileDescriptor&, ShouldBlock) { return KSuccess; }
virtual int protocol_allocate_local_port() { return 0; }
virtual bool protocol_is_disconnected() const { return false; }
private:
virtual bool is_ipv4() const override { return true; }
bool m_bound { false };
int m_attached_fds { 0 };
IPv4Address m_local_address;
IPv4Address m_peer_address;
DoubleBuffer m_for_client;
DoubleBuffer m_for_server;
struct ReceivedPacket {
IPv4Address peer_address;
word peer_port;
ByteBuffer data;
};
SinglyLinkedList<ReceivedPacket> m_receive_queue;
word m_local_port { 0 };
word m_peer_port { 0 };
dword m_bytes_received { 0 };
bool m_can_read { false };
};
class IPv4SocketHandle : public SocketHandle {
public:
IPv4SocketHandle() { }
IPv4SocketHandle(RetainPtr<IPv4Socket>&& socket)
: SocketHandle(move(socket))
{
}
IPv4SocketHandle(IPv4SocketHandle&& other)
: SocketHandle(move(other))
{
}
IPv4SocketHandle(const IPv4SocketHandle&) = delete;
IPv4SocketHandle& operator=(const IPv4SocketHandle&) = delete;
IPv4Socket* operator->() { return &socket(); }
const IPv4Socket* operator->() const { return &socket(); }
IPv4Socket& socket() { return static_cast<IPv4Socket&>(SocketHandle::socket()); }
const IPv4Socket& socket() const { return static_cast<const IPv4Socket&>(SocketHandle::socket()); }
};
|
