kernel/include/uapi/linux/tcp_metrics.h

   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
  13 enum 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
  29 enum {
  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
  49 enum {
  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 */