linux-headers (unknown)
1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 /* tcp_metrics.h - TCP Metrics Interface */
3
4 #ifndef _LINUX_TCP_METRICS_H
5 #define _LINUX_TCP_METRICS_H
6
7 #include <linux/types.h>
8
9 /* NETLINK_GENERIC related info
10 */
11 #define TCP_METRICS_GENL_NAME "tcp_metrics"
12 #define TCP_METRICS_GENL_VERSION 0x1
13
14 enum tcp_metric_index {
15 TCP_METRIC_RTT, /* in ms units */
16 TCP_METRIC_RTTVAR, /* in ms units */
17 TCP_METRIC_SSTHRESH,
18 TCP_METRIC_CWND,
19 TCP_METRIC_REORDERING,
20
21 TCP_METRIC_RTT_US, /* in usec units */
22 TCP_METRIC_RTTVAR_US, /* in usec units */
23
24 /* Always last. */
25 __TCP_METRIC_MAX,
26 };
27
28 #define TCP_METRIC_MAX (__TCP_METRIC_MAX - 1)
29
30 enum {
31 TCP_METRICS_ATTR_UNSPEC,
32 TCP_METRICS_ATTR_ADDR_IPV4, /* u32 */
33 TCP_METRICS_ATTR_ADDR_IPV6, /* binary */
34 TCP_METRICS_ATTR_AGE, /* msecs */
35 TCP_METRICS_ATTR_TW_TSVAL, /* u32, raw, rcv tsval */
36 TCP_METRICS_ATTR_TW_TS_STAMP, /* s32, sec age */
37 TCP_METRICS_ATTR_VALS, /* nested +1, u32 */
38 TCP_METRICS_ATTR_FOPEN_MSS, /* u16 */
39 TCP_METRICS_ATTR_FOPEN_SYN_DROPS, /* u16, count of drops */
40 TCP_METRICS_ATTR_FOPEN_SYN_DROP_TS, /* msecs age */
41 TCP_METRICS_ATTR_FOPEN_COOKIE, /* binary */
42 TCP_METRICS_ATTR_SADDR_IPV4, /* u32 */
43 TCP_METRICS_ATTR_SADDR_IPV6, /* binary */
44 TCP_METRICS_ATTR_PAD,
45
46 __TCP_METRICS_ATTR_MAX,
47 };
48
49 #define TCP_METRICS_ATTR_MAX (__TCP_METRICS_ATTR_MAX - 1)
50
51 enum {
52 TCP_METRICS_CMD_UNSPEC,
53 TCP_METRICS_CMD_GET,
54 TCP_METRICS_CMD_DEL,
55
56 __TCP_METRICS_CMD_MAX,
57 };
58
59 #define TCP_METRICS_CMD_MAX (__TCP_METRICS_CMD_MAX - 1)
60
61 #endif /* _LINUX_TCP_METRICS_H */
Browse
Usage
Versions