RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-25 14:07:46 +00:00
Code Issues Activity Actions

IPv4: Basic implementation of TCP socket shutdown

Browse source 
We can now participate in the TCP connection closing handshake. :^)
This implementation is definitely not complete and needs to handle a
bunch of other cases. But it's a huge improvement over not being able
to close connections at all.

Note that we hold on to pending-close sockets indefinitely, until they
are moved into the Closed state. This should also have a timeout but
that's still a FIXME. :^)

Fixes #428.
This commit is contained in:
Andreas Kling 2020-02-08 15:52:32 +01:00
parent 8325662186
commit 228a1e9099
7 changed files with 69 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

6
Kernel/Net/TCPSocket.h
View file

@ -155,12 +155,16 @@ public:
static RefPtr<TCPSocket> from_tuple(const IPv4SocketTuple& tuple);
static RefPtr<TCPSocket> from_endpoints(const IPv4Address& local_address, u16 local_port, const IPv4Address& peer_address, u16 peer_port);
static Lockable<HashMap<IPv4SocketTuple, RefPtr<TCPSocket>>>& closing_sockets();
RefPtr<TCPSocket> create_client(const IPv4Address& local_address, u16 local_port, const IPv4Address& peer_address, u16 peer_port);
void set_originator(TCPSocket& originator) { m_originator = originator.make_weak_ptr(); }
bool has_originator() { return !!m_originator; }
void release_to_originator();
void release_for_accept(RefPtr<TCPSocket>);
virtual void close() override;
protected:
void set_direction(Direction direction) { m_direction = direction; }
@ -170,6 +174,8 @@ private:
static NetworkOrdered<u16> compute_tcp_checksum(const IPv4Address& source, const IPv4Address& destination, const TCPPacket&, u16 payload_size);
virtual void shut_down_for_writing() override;
virtual int protocol_receive(const KBuffer&, void* buffer, size_t buffer_size, int flags) override;
virtual int protocol_send(const void*, size_t) override;
virtual KResult protocol_connect(FileDescription&, ShouldBlock) override;