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1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef _UAPI__NET_DROPMON_H
3#define _UAPI__NET_DROPMON_H
4
5#include <linux/types.h>
6#include <linux/netlink.h>
7
8struct net_dm_drop_point {
9 __u8 pc[8];
10 __u32 count;
11};
12
13#define NET_DM_CFG_VERSION 0
14#define NET_DM_CFG_ALERT_COUNT 1
15#define NET_DM_CFG_ALERT_DELAY 2
16#define NET_DM_CFG_MAX 3
17
18struct net_dm_config_entry {
19 __u32 type;
20 __u64 data __attribute__((aligned(8)));
21};
22
23struct net_dm_config_msg {
24 __u32 entries;
25 struct net_dm_config_entry options[];
26};
27
28struct net_dm_alert_msg {
29 __u32 entries;
30 struct net_dm_drop_point points[];
31};
32
33struct net_dm_user_msg {
34 union {
35 struct net_dm_config_msg user;
36 struct net_dm_alert_msg alert;
37 } u;
38};
39
40
41/* These are the netlink message types for this protocol */
42
43enum {
44 NET_DM_CMD_UNSPEC = 0,
45 NET_DM_CMD_ALERT,
46 NET_DM_CMD_CONFIG,
47 NET_DM_CMD_START,
48 NET_DM_CMD_STOP,
49 NET_DM_CMD_PACKET_ALERT,
50 NET_DM_CMD_CONFIG_GET,
51 NET_DM_CMD_CONFIG_NEW,
52 NET_DM_CMD_STATS_GET,
53 NET_DM_CMD_STATS_NEW,
54 _NET_DM_CMD_MAX,
55};
56
57#define NET_DM_CMD_MAX (_NET_DM_CMD_MAX - 1)
58
59/*
60 * Our group identifiers
61 */
62#define NET_DM_GRP_ALERT 1
63
64enum net_dm_attr {
65 NET_DM_ATTR_UNSPEC,
66
67 NET_DM_ATTR_ALERT_MODE, /* u8 */
68 NET_DM_ATTR_PC, /* u64 */
69 NET_DM_ATTR_SYMBOL, /* string */
70 NET_DM_ATTR_IN_PORT, /* nested */
71 NET_DM_ATTR_TIMESTAMP, /* u64 */
72 NET_DM_ATTR_PROTO, /* u16 */
73 NET_DM_ATTR_PAYLOAD, /* binary */
74 NET_DM_ATTR_PAD,
75 NET_DM_ATTR_TRUNC_LEN, /* u32 */
76 NET_DM_ATTR_ORIG_LEN, /* u32 */
77 NET_DM_ATTR_QUEUE_LEN, /* u32 */
78 NET_DM_ATTR_STATS, /* nested */
79 NET_DM_ATTR_HW_STATS, /* nested */
80 NET_DM_ATTR_ORIGIN, /* u16 */
81 NET_DM_ATTR_HW_TRAP_GROUP_NAME, /* string */
82 NET_DM_ATTR_HW_TRAP_NAME, /* string */
83 NET_DM_ATTR_HW_ENTRIES, /* nested */
84 NET_DM_ATTR_HW_ENTRY, /* nested */
85 NET_DM_ATTR_HW_TRAP_COUNT, /* u32 */
86 NET_DM_ATTR_SW_DROPS, /* flag */
87 NET_DM_ATTR_HW_DROPS, /* flag */
88 NET_DM_ATTR_FLOW_ACTION_COOKIE, /* binary */
89 NET_DM_ATTR_REASON, /* string */
90
91 __NET_DM_ATTR_MAX,
92 NET_DM_ATTR_MAX = __NET_DM_ATTR_MAX - 1
93};
94
95/**
96 * enum net_dm_alert_mode - Alert mode.
97 * @NET_DM_ALERT_MODE_SUMMARY: A summary of recent drops is sent to user space.
98 * @NET_DM_ALERT_MODE_PACKET: Each dropped packet is sent to user space along
99 * with metadata.
100 */
101enum net_dm_alert_mode {
102 NET_DM_ALERT_MODE_SUMMARY,
103 NET_DM_ALERT_MODE_PACKET,
104};
105
106enum {
107 NET_DM_ATTR_PORT_NETDEV_IFINDEX, /* u32 */
108 NET_DM_ATTR_PORT_NETDEV_NAME, /* string */
109
110 __NET_DM_ATTR_PORT_MAX,
111 NET_DM_ATTR_PORT_MAX = __NET_DM_ATTR_PORT_MAX - 1
112};
113
114enum {
115 NET_DM_ATTR_STATS_DROPPED, /* u64 */
116
117 __NET_DM_ATTR_STATS_MAX,
118 NET_DM_ATTR_STATS_MAX = __NET_DM_ATTR_STATS_MAX - 1
119};
120
121enum net_dm_origin {
122 NET_DM_ORIGIN_SW,
123 NET_DM_ORIGIN_HW,
124};
125
126#endif