/* 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,
TCP_METRIC_RTTVAR,
TCP_METRIC_SSTHRESH,
TCP_METRIC_CWND,
TCP_METRIC_REORDERING,

/* 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_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 */