1/* tcp_metrics.h - TCP Metrics Interface */
2
3#ifndef _LINUX_TCP_METRICS_H
4#define _LINUX_TCP_METRICS_H
5
6#include <linux/types.h>
7
8/* NETLINK_GENERIC related info
9 */
10#define TCP_METRICS_GENL_NAME		"tcp_metrics"
11#define TCP_METRICS_GENL_VERSION	0x1
12
13enum tcp_metric_index {
14	TCP_METRIC_RTT,		/* in ms units */
15	TCP_METRIC_RTTVAR,	/* in ms units */
16	TCP_METRIC_SSTHRESH,
17	TCP_METRIC_CWND,
18	TCP_METRIC_REORDERING,
19
20	TCP_METRIC_RTT_US,	/* in usec units */
21	TCP_METRIC_RTTVAR_US,	/* in usec units */
22
23	/* Always last.  */
24	__TCP_METRIC_MAX,
25};
26
27#define TCP_METRIC_MAX	(__TCP_METRIC_MAX - 1)
28
29enum {
30	TCP_METRICS_ATTR_UNSPEC,
31	TCP_METRICS_ATTR_ADDR_IPV4,		/* u32 */
32	TCP_METRICS_ATTR_ADDR_IPV6,		/* binary */
33	TCP_METRICS_ATTR_AGE,			/* msecs */
34	TCP_METRICS_ATTR_TW_TSVAL,		/* u32, raw, rcv tsval */
35	TCP_METRICS_ATTR_TW_TS_STAMP,		/* s32, sec age */
36	TCP_METRICS_ATTR_VALS,			/* nested +1, u32 */
37	TCP_METRICS_ATTR_FOPEN_MSS,		/* u16 */
38	TCP_METRICS_ATTR_FOPEN_SYN_DROPS,	/* u16, count of drops */
39	TCP_METRICS_ATTR_FOPEN_SYN_DROP_TS,	/* msecs age */
40	TCP_METRICS_ATTR_FOPEN_COOKIE,		/* binary */
41	TCP_METRICS_ATTR_SADDR_IPV4,		/* u32 */
42	TCP_METRICS_ATTR_SADDR_IPV6,		/* binary */
43
44	__TCP_METRICS_ATTR_MAX,
45};
46
47#define TCP_METRICS_ATTR_MAX	(__TCP_METRICS_ATTR_MAX - 1)
48
49enum {
50	TCP_METRICS_CMD_UNSPEC,
51	TCP_METRICS_CMD_GET,
52	TCP_METRICS_CMD_DEL,
53
54	__TCP_METRICS_CMD_MAX,
55};
56
57#define TCP_METRICS_CMD_MAX	(__TCP_METRICS_CMD_MAX - 1)
58
59#endif /* _LINUX_TCP_METRICS_H */
60