| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */ |
| |
| /* Define states of a socket to tracking messages sending to and from the |
| * socket. |
| * |
| * These states are based on rfc9293 with some modifications to support |
| * tracking of messages sent out from a socket. For example, when a SYN is |
| * received, a new socket is transiting to the SYN_RECV state defined in |
| * rfc9293. But, we put it in SYN_RECV_SENDING_SYN_ACK state and when |
| * SYN-ACK is sent out, it moves to SYN_RECV state. With this modification, |
| * we can track the message sent out from a socket. |
| */ |
| |
| #ifndef __CGROUP_TCP_SKB_H__ |
| #define __CGROUP_TCP_SKB_H__ |
| |
| enum { |
| INIT, |
| CLOSED, |
| SYN_SENT, |
| SYN_RECV_SENDING_SYN_ACK, |
| SYN_RECV, |
| ESTABLISHED, |
| FIN_WAIT1, |
| FIN_WAIT2, |
| CLOSE_WAIT_SENDING_ACK, |
| CLOSE_WAIT, |
| CLOSING, |
| LAST_ACK, |
| TIME_WAIT_SENDING_ACK, |
| TIME_WAIT, |
| }; |
| |
| #endif /* __CGROUP_TCP_SKB_H__ */ |
