1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2*4882a593Smuzhiyun /* tcp_metrics.h - TCP Metrics Interface */ 3*4882a593Smuzhiyun 4*4882a593Smuzhiyun #ifndef _LINUX_TCP_METRICS_H 5*4882a593Smuzhiyun #define _LINUX_TCP_METRICS_H 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun #include <linux/types.h> 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun /* NETLINK_GENERIC related info 10*4882a593Smuzhiyun */ 11*4882a593Smuzhiyun #define TCP_METRICS_GENL_NAME "tcp_metrics" 12*4882a593Smuzhiyun #define TCP_METRICS_GENL_VERSION 0x1 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun enum tcp_metric_index { 15*4882a593Smuzhiyun TCP_METRIC_RTT, /* in ms units */ 16*4882a593Smuzhiyun TCP_METRIC_RTTVAR, /* in ms units */ 17*4882a593Smuzhiyun TCP_METRIC_SSTHRESH, 18*4882a593Smuzhiyun TCP_METRIC_CWND, 19*4882a593Smuzhiyun TCP_METRIC_REORDERING, 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun TCP_METRIC_RTT_US, /* in usec units */ 22*4882a593Smuzhiyun TCP_METRIC_RTTVAR_US, /* in usec units */ 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun /* Always last. */ 25*4882a593Smuzhiyun __TCP_METRIC_MAX, 26*4882a593Smuzhiyun }; 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun #define TCP_METRIC_MAX (__TCP_METRIC_MAX - 1) 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun enum { 31*4882a593Smuzhiyun TCP_METRICS_ATTR_UNSPEC, 32*4882a593Smuzhiyun TCP_METRICS_ATTR_ADDR_IPV4, /* u32 */ 33*4882a593Smuzhiyun TCP_METRICS_ATTR_ADDR_IPV6, /* binary */ 34*4882a593Smuzhiyun TCP_METRICS_ATTR_AGE, /* msecs */ 35*4882a593Smuzhiyun TCP_METRICS_ATTR_TW_TSVAL, /* u32, raw, rcv tsval */ 36*4882a593Smuzhiyun TCP_METRICS_ATTR_TW_TS_STAMP, /* s32, sec age */ 37*4882a593Smuzhiyun TCP_METRICS_ATTR_VALS, /* nested +1, u32 */ 38*4882a593Smuzhiyun TCP_METRICS_ATTR_FOPEN_MSS, /* u16 */ 39*4882a593Smuzhiyun TCP_METRICS_ATTR_FOPEN_SYN_DROPS, /* u16, count of drops */ 40*4882a593Smuzhiyun TCP_METRICS_ATTR_FOPEN_SYN_DROP_TS, /* msecs age */ 41*4882a593Smuzhiyun TCP_METRICS_ATTR_FOPEN_COOKIE, /* binary */ 42*4882a593Smuzhiyun TCP_METRICS_ATTR_SADDR_IPV4, /* u32 */ 43*4882a593Smuzhiyun TCP_METRICS_ATTR_SADDR_IPV6, /* binary */ 44*4882a593Smuzhiyun TCP_METRICS_ATTR_PAD, 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun __TCP_METRICS_ATTR_MAX, 47*4882a593Smuzhiyun }; 48*4882a593Smuzhiyun 49*4882a593Smuzhiyun #define TCP_METRICS_ATTR_MAX (__TCP_METRICS_ATTR_MAX - 1) 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun enum { 52*4882a593Smuzhiyun TCP_METRICS_CMD_UNSPEC, 53*4882a593Smuzhiyun TCP_METRICS_CMD_GET, 54*4882a593Smuzhiyun TCP_METRICS_CMD_DEL, 55*4882a593Smuzhiyun 56*4882a593Smuzhiyun __TCP_METRICS_CMD_MAX, 57*4882a593Smuzhiyun }; 58*4882a593Smuzhiyun 59*4882a593Smuzhiyun #define TCP_METRICS_CMD_MAX (__TCP_METRICS_CMD_MAX - 1) 60*4882a593Smuzhiyun 61*4882a593Smuzhiyun #endif /* _LINUX_TCP_METRICS_H */ 62