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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 _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 | enum { |
| 31 | TCP_METRICS_ATTR_UNSPEC, |
| 32 | TCP_METRICS_ATTR_ADDR_IPV4, /* u32 */ |
| 33 | TCP_METRICS_ATTR_ADDR_IPV6, /* binary */ |
| 34 | TCP_METRICS_ATTR_AGE, /* msecs */ |
| 35 | TCP_METRICS_ATTR_TW_TSVAL, /* u32, raw, rcv tsval */ |
| 36 | TCP_METRICS_ATTR_TW_TS_STAMP, /* s32, sec age */ |
| 37 | TCP_METRICS_ATTR_VALS, /* nested +1, u32 */ |
| 38 | TCP_METRICS_ATTR_FOPEN_MSS, /* u16 */ |
| 39 | TCP_METRICS_ATTR_FOPEN_SYN_DROPS, /* u16, count of drops */ |
| 40 | TCP_METRICS_ATTR_FOPEN_SYN_DROP_TS, /* msecs age */ |
| 41 | TCP_METRICS_ATTR_FOPEN_COOKIE, /* binary */ |
| 42 | TCP_METRICS_ATTR_SADDR_IPV4, /* u32 */ |
| 43 | TCP_METRICS_ATTR_SADDR_IPV6, /* binary */ |
| 44 | TCP_METRICS_ATTR_PAD, |
| 45 | |
| 46 | __TCP_METRICS_ATTR_MAX, |
| 47 | }; |
| 48 | |
| 49 | #define TCP_METRICS_ATTR_MAX (__TCP_METRICS_ATTR_MAX - 1) |
| 50 | |
| 51 | enum { |
| 52 | TCP_METRICS_CMD_UNSPEC, |
| 53 | TCP_METRICS_CMD_GET, |
| 54 | TCP_METRICS_CMD_DEL, |
| 55 | |
| 56 | __TCP_METRICS_CMD_MAX, |
| 57 | }; |
| 58 | |
| 59 | #define TCP_METRICS_CMD_MAX (__TCP_METRICS_CMD_MAX - 1) |
| 60 | |
| 61 | #endif /* _LINUX_TCP_METRICS_H */ |
| 62 |
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