/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* tcp_metrics.h - TCP Metrics Interface */ #ifndef _LINUX_TCP_METRICS_H #define _LINUX_TCP_METRICS_H #include /* 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 */