/usr/include/linux/tcp_metrics.h is in linux-libc-dev 4.9.144-3.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 | /* tcp_metrics.h - TCP Metrics Interface */
#ifndef _LINUX_TCP_METRICS_H
#define _LINUX_TCP_METRICS_H
#include <linux/types.h>
/* NETLINK_GENERIC related info
*/
#define TCP_METRICS_GENL_NAME "tcp_metrics"
#define TCP_METRICS_GENL_VERSION 0x1
enum tcp_metric_index {
TCP_METRIC_RTT, /* in ms units */
TCP_METRIC_RTTVAR, /* in ms units */
TCP_METRIC_SSTHRESH,
TCP_METRIC_CWND,
TCP_METRIC_REORDERING,
TCP_METRIC_RTT_US, /* in usec units */
TCP_METRIC_RTTVAR_US, /* in usec units */
/* Always last. */
__TCP_METRIC_MAX,
};
#define TCP_METRIC_MAX (__TCP_METRIC_MAX - 1)
enum {
TCP_METRICS_ATTR_UNSPEC,
TCP_METRICS_ATTR_ADDR_IPV4, /* u32 */
TCP_METRICS_ATTR_ADDR_IPV6, /* binary */
TCP_METRICS_ATTR_AGE, /* msecs */
TCP_METRICS_ATTR_TW_TSVAL, /* u32, raw, rcv tsval */
TCP_METRICS_ATTR_TW_TS_STAMP, /* s32, sec age */
TCP_METRICS_ATTR_VALS, /* nested +1, u32 */
TCP_METRICS_ATTR_FOPEN_MSS, /* u16 */
TCP_METRICS_ATTR_FOPEN_SYN_DROPS, /* u16, count of drops */
TCP_METRICS_ATTR_FOPEN_SYN_DROP_TS, /* msecs age */
TCP_METRICS_ATTR_FOPEN_COOKIE, /* binary */
TCP_METRICS_ATTR_SADDR_IPV4, /* u32 */
TCP_METRICS_ATTR_SADDR_IPV6, /* binary */
TCP_METRICS_ATTR_PAD,
__TCP_METRICS_ATTR_MAX,
};
#define TCP_METRICS_ATTR_MAX (__TCP_METRICS_ATTR_MAX - 1)
enum {
TCP_METRICS_CMD_UNSPEC,
TCP_METRICS_CMD_GET,
TCP_METRICS_CMD_DEL,
__TCP_METRICS_CMD_MAX,
};
#define TCP_METRICS_CMD_MAX (__TCP_METRICS_CMD_MAX - 1)
#endif /* _LINUX_TCP_METRICS_H */
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