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1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */2/* tcp_metrics.h - TCP Metrics Interface */3 4#ifndef _UAPI_LINUX_TCP_METRICS_H5#define _UAPI_LINUX_TCP_METRICS_H6 7#include <linux/types.h>8 9/* NETLINK_GENERIC related info10 */11#define TCP_METRICS_GENL_NAME "tcp_metrics"12#define TCP_METRICS_GENL_VERSION 0x113 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 30/* Re-define enum tcp_metric_index, again, using the values carried31 * as netlink attribute types.32 */33enum {34 TCP_METRICS_A_METRICS_RTT = 1,35 TCP_METRICS_A_METRICS_RTTVAR,36 TCP_METRICS_A_METRICS_SSTHRESH,37 TCP_METRICS_A_METRICS_CWND,38 TCP_METRICS_A_METRICS_REODERING,39 TCP_METRICS_A_METRICS_RTT_US,40 TCP_METRICS_A_METRICS_RTTVAR_US,41 42 __TCP_METRICS_A_METRICS_MAX43};44#define TCP_METRICS_A_METRICS_MAX (__TCP_METRICS_A_METRICS_MAX - 1)45 46enum {47 TCP_METRICS_ATTR_UNSPEC,48 TCP_METRICS_ATTR_ADDR_IPV4, /* u32 */49 TCP_METRICS_ATTR_ADDR_IPV6, /* binary */50 TCP_METRICS_ATTR_AGE, /* msecs */51 TCP_METRICS_ATTR_TW_TSVAL, /* u32, raw, rcv tsval */52 TCP_METRICS_ATTR_TW_TS_STAMP, /* s32, sec age */53 TCP_METRICS_ATTR_VALS, /* nested +1, u32 */54 TCP_METRICS_ATTR_FOPEN_MSS, /* u16 */55 TCP_METRICS_ATTR_FOPEN_SYN_DROPS, /* u16, count of drops */56 TCP_METRICS_ATTR_FOPEN_SYN_DROP_TS, /* msecs age */57 TCP_METRICS_ATTR_FOPEN_COOKIE, /* binary */58 TCP_METRICS_ATTR_SADDR_IPV4, /* u32 */59 TCP_METRICS_ATTR_SADDR_IPV6, /* binary */60 TCP_METRICS_ATTR_PAD,61 62 __TCP_METRICS_ATTR_MAX,63};64 65#define TCP_METRICS_ATTR_MAX (__TCP_METRICS_ATTR_MAX - 1)66 67enum {68 TCP_METRICS_CMD_UNSPEC,69 TCP_METRICS_CMD_GET,70 TCP_METRICS_CMD_DEL,71 72 __TCP_METRICS_CMD_MAX,73};74 75#define TCP_METRICS_CMD_MAX (__TCP_METRICS_CMD_MAX - 1)76 77#endif /* _UAPI_LINUX_TCP_METRICS_H */78