LXR linux/include/uapi/linux/tcp

   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
  14enum 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
  30enum {
  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
  51enum {
  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 */
  62