1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux 1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 /* tcp_metrics.h - TCP Metrics Interface */ 2 /* tcp_metrics.h - TCP Metrics Interface */
3 3
4 #ifndef _UAPI_LINUX_TCP_METRICS_H 4 #ifndef _UAPI_LINUX_TCP_METRICS_H
5 #define _UAPI_LINUX_TCP_METRICS_H 5 #define _UAPI_LINUX_TCP_METRICS_H
6 6
7 #include <linux/types.h> 7 #include <linux/types.h>
8 8
9 /* NETLINK_GENERIC related info 9 /* NETLINK_GENERIC related info
10 */ 10 */
11 #define TCP_METRICS_GENL_NAME "tcp_m 11 #define TCP_METRICS_GENL_NAME "tcp_metrics"
12 #define TCP_METRICS_GENL_VERSION 0x1 12 #define TCP_METRICS_GENL_VERSION 0x1
13 13
14 enum tcp_metric_index { 14 enum tcp_metric_index {
15 TCP_METRIC_RTT, /* in ms units 15 TCP_METRIC_RTT, /* in ms units */
16 TCP_METRIC_RTTVAR, /* in ms units 16 TCP_METRIC_RTTVAR, /* in ms units */
17 TCP_METRIC_SSTHRESH, 17 TCP_METRIC_SSTHRESH,
18 TCP_METRIC_CWND, 18 TCP_METRIC_CWND,
19 TCP_METRIC_REORDERING, 19 TCP_METRIC_REORDERING,
20 20
21 TCP_METRIC_RTT_US, /* in usec uni 21 TCP_METRIC_RTT_US, /* in usec units */
22 TCP_METRIC_RTTVAR_US, /* in usec uni 22 TCP_METRIC_RTTVAR_US, /* in usec units */
23 23
24 /* Always last. */ 24 /* Always last. */
25 __TCP_METRIC_MAX, 25 __TCP_METRIC_MAX,
26 }; 26 };
27 27
28 #define TCP_METRIC_MAX (__TCP_METRIC_MAX - 1) 28 #define TCP_METRIC_MAX (__TCP_METRIC_MAX - 1)
29 29
30 /* Re-define enum tcp_metric_index, again, usi 30 /* Re-define enum tcp_metric_index, again, using the values carried
31 * as netlink attribute types. 31 * as netlink attribute types.
32 */ 32 */
33 enum { 33 enum {
34 TCP_METRICS_A_METRICS_RTT = 1, 34 TCP_METRICS_A_METRICS_RTT = 1,
35 TCP_METRICS_A_METRICS_RTTVAR, 35 TCP_METRICS_A_METRICS_RTTVAR,
36 TCP_METRICS_A_METRICS_SSTHRESH, 36 TCP_METRICS_A_METRICS_SSTHRESH,
37 TCP_METRICS_A_METRICS_CWND, 37 TCP_METRICS_A_METRICS_CWND,
38 TCP_METRICS_A_METRICS_REODERING, 38 TCP_METRICS_A_METRICS_REODERING,
39 TCP_METRICS_A_METRICS_RTT_US, 39 TCP_METRICS_A_METRICS_RTT_US,
40 TCP_METRICS_A_METRICS_RTTVAR_US, 40 TCP_METRICS_A_METRICS_RTTVAR_US,
41 41
42 __TCP_METRICS_A_METRICS_MAX 42 __TCP_METRICS_A_METRICS_MAX
43 }; 43 };
44 #define TCP_METRICS_A_METRICS_MAX (__TCP_METRI 44 #define TCP_METRICS_A_METRICS_MAX (__TCP_METRICS_A_METRICS_MAX - 1)
45 45
46 enum { 46 enum {
47 TCP_METRICS_ATTR_UNSPEC, 47 TCP_METRICS_ATTR_UNSPEC,
48 TCP_METRICS_ATTR_ADDR_IPV4, 48 TCP_METRICS_ATTR_ADDR_IPV4, /* u32 */
49 TCP_METRICS_ATTR_ADDR_IPV6, 49 TCP_METRICS_ATTR_ADDR_IPV6, /* binary */
50 TCP_METRICS_ATTR_AGE, 50 TCP_METRICS_ATTR_AGE, /* msecs */
51 TCP_METRICS_ATTR_TW_TSVAL, 51 TCP_METRICS_ATTR_TW_TSVAL, /* u32, raw, rcv tsval */
52 TCP_METRICS_ATTR_TW_TS_STAMP, 52 TCP_METRICS_ATTR_TW_TS_STAMP, /* s32, sec age */
53 TCP_METRICS_ATTR_VALS, 53 TCP_METRICS_ATTR_VALS, /* nested +1, u32 */
54 TCP_METRICS_ATTR_FOPEN_MSS, 54 TCP_METRICS_ATTR_FOPEN_MSS, /* u16 */
55 TCP_METRICS_ATTR_FOPEN_SYN_DROPS, 55 TCP_METRICS_ATTR_FOPEN_SYN_DROPS, /* u16, count of drops */
56 TCP_METRICS_ATTR_FOPEN_SYN_DROP_TS, 56 TCP_METRICS_ATTR_FOPEN_SYN_DROP_TS, /* msecs age */
57 TCP_METRICS_ATTR_FOPEN_COOKIE, 57 TCP_METRICS_ATTR_FOPEN_COOKIE, /* binary */
58 TCP_METRICS_ATTR_SADDR_IPV4, 58 TCP_METRICS_ATTR_SADDR_IPV4, /* u32 */
59 TCP_METRICS_ATTR_SADDR_IPV6, 59 TCP_METRICS_ATTR_SADDR_IPV6, /* binary */
60 TCP_METRICS_ATTR_PAD, 60 TCP_METRICS_ATTR_PAD,
61 61
62 __TCP_METRICS_ATTR_MAX, 62 __TCP_METRICS_ATTR_MAX,
63 }; 63 };
64 64
65 #define TCP_METRICS_ATTR_MAX (__TCP_METRICS 65 #define TCP_METRICS_ATTR_MAX (__TCP_METRICS_ATTR_MAX - 1)
66 66
67 enum { 67 enum {
68 TCP_METRICS_CMD_UNSPEC, 68 TCP_METRICS_CMD_UNSPEC,
69 TCP_METRICS_CMD_GET, 69 TCP_METRICS_CMD_GET,
70 TCP_METRICS_CMD_DEL, 70 TCP_METRICS_CMD_DEL,
71 71
72 __TCP_METRICS_CMD_MAX, 72 __TCP_METRICS_CMD_MAX,
73 }; 73 };
74 74
75 #define TCP_METRICS_CMD_MAX (__TCP_METRICS 75 #define TCP_METRICS_CMD_MAX (__TCP_METRICS_CMD_MAX - 1)
76 76
77 #endif /* _UAPI_LINUX_TCP_METRICS_H */ 77 #endif /* _UAPI_LINUX_TCP_METRICS_H */
78 78
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