1/* SPDX-License-Identifier: GPL-2.0 */
 2/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
 3
 4/* Define states of a socket to tracking messages sending to and from the
 5 * socket.
 6 *
 7 * These states are based on rfc9293 with some modifications to support
 8 * tracking of messages sent out from a socket. For example, when a SYN is
 9 * received, a new socket is transiting to the SYN_RECV state defined in
10 * rfc9293. But, we put it in SYN_RECV_SENDING_SYN_ACK state and when
11 * SYN-ACK is sent out, it moves to SYN_RECV state. With this modification,
12 * we can track the message sent out from a socket.
13 */
14
15#ifndef __CGROUP_TCP_SKB_H__
16#define __CGROUP_TCP_SKB_H__
17
18enum {
19	INIT,
20	CLOSED,
21	SYN_SENT,
22	SYN_RECV_SENDING_SYN_ACK,
23	SYN_RECV,
24	ESTABLISHED,
25	FIN_WAIT1,
26	FIN_WAIT2,
27	CLOSE_WAIT_SENDING_ACK,
28	CLOSE_WAIT,
29	CLOSING,
30	LAST_ACK,
31	TIME_WAIT_SENDING_ACK,
32	TIME_WAIT,
33};
34
35#endif /* __CGROUP_TCP_SKB_H__ */

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
 3
 4/* Define states of a socket to tracking messages sending to and from the
 5 * socket.
 6 *
 7 * These states are based on rfc9293 with some modifications to support
 8 * tracking of messages sent out from a socket. For example, when a SYN is
 9 * received, a new socket is transiting to the SYN_RECV state defined in
10 * rfc9293. But, we put it in SYN_RECV_SENDING_SYN_ACK state and when
11 * SYN-ACK is sent out, it moves to SYN_RECV state. With this modification,
12 * we can track the message sent out from a socket.
13 */
14
15#ifndef __CGROUP_TCP_SKB_H__
16#define __CGROUP_TCP_SKB_H__
17
18enum {
19	INIT,
20	CLOSED,
21	SYN_SENT,
22	SYN_RECV_SENDING_SYN_ACK,
23	SYN_RECV,
24	ESTABLISHED,
25	FIN_WAIT1,
26	FIN_WAIT2,
27	CLOSE_WAIT_SENDING_ACK,
28	CLOSE_WAIT,
29	CLOSING,
30	LAST_ACK,
31	TIME_WAIT_SENDING_ACK,
32	TIME_WAIT,
33};
34
35#endif /* __CGROUP_TCP_SKB_H__ */