tcp_metrics.h (1984B) - Raw
1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 /* tcp_metrics.h - TCP Metrics Interface */ 3 4 #ifndef _LINUX_TCP_METRICS_H 5 #define _LINUX_TCP_METRICS_H 6 7 #include <linux/types.h> 8 9 /* NETLINK_GENERIC related info 10 */ 11 #define TCP_METRICS_GENL_NAME "tcp_metrics" 12 #define TCP_METRICS_GENL_VERSION 0x1 13 14 enum 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 carried 31 * as netlink attribute types. 32 */ 33 enum { 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_MAX 43 }; 44 #define TCP_METRICS_A_METRICS_MAX (__TCP_METRICS_A_METRICS_MAX - 1) 45 46 enum { 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 67 enum { 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 /* _LINUX_TCP_METRICS_H */