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/* 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__ */
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