RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-25 08:57:35 +00:00
Code Issues Activity Actions

Kernel: Refactor TCP/IP stack

Browse source 
This has several significant changes to the networking stack.

* Significant refactoring of the TCP state machine. Right now it's
  probably more fragile than it used to be, but handles quite a lot
  more of the handshake process.
* `TCPSocket` holds a `NetworkAdapter*`, assigned during `connect()` or
  `bind()`, whichever comes first.
* `listen()` is now virtual in `Socket` and intended to be implemented
  in its child classes
* `listen()` no longer works without `bind()` - this is a bit of a
  regression, but listening sockets didn't work at all before, so it's
  not possible to observe the regression.
* A file is exposed at `/proc/net_tcp`, which is a JSON document listing
  the current TCP sockets with a bit of metadata.
* There's an `ETHERNET_VERY_DEBUG` flag for dumping packet's content out
  to `kprintf`. It is, indeed, _very debug_.
This commit is contained in:
Conrad Pankoff 2019-08-06 23:40:38 +10:00 • committed by Andreas Kling
parent c973a51a23
commit 73c998dbfc
12 changed files with 446 additions and 84 deletions
Download patch file Download diff file Expand all files Collapse all files

1
Kernel/Net/TCP.h
View file

@ -39,6 +39,7 @@ public:
bool has_syn() const { return flags() & TCPFlags::SYN; }
bool has_ack() const { return flags() & TCPFlags::ACK; }
bool has_fin() const { return flags() & TCPFlags::FIN; }
bool has_rst() const { return flags() & TCPFlags::RST; }
u8 data_offset() const { return (m_flags_and_data_offset & 0xf000) >> 12; }
void set_data_offset(u16 data_offset) { m_flags_and_data_offset = (m_flags_and_data_offset & ~0xf000) | data_offset << 12; }