1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 #ifndef __NET_DROPMON_H
3 #define __NET_DROPMON_H
5 #include <linux/types.h>
6 #include <linux/netlink.h>
8 struct net_dm_drop_point {
13 #define is_drop_point_hw(x) do {\
15 for (____i = 0; ____i < 8; i ____i++)\
20 #define NET_DM_CFG_VERSION 0
21 #define NET_DM_CFG_ALERT_COUNT 1
22 #define NET_DM_CFG_ALERT_DELAY 2
23 #define NET_DM_CFG_MAX 3
25 struct net_dm_config_entry {
27 __u64 data __attribute__((aligned(8)));
30 struct net_dm_config_msg {
32 struct net_dm_config_entry options[0];
35 struct net_dm_alert_msg {
37 struct net_dm_drop_point points[0];
40 struct net_dm_user_msg {
42 struct net_dm_config_msg user;
43 struct net_dm_alert_msg alert;
48 /* These are the netlink message types for this protocol */
51 NET_DM_CMD_UNSPEC = 0,
56 NET_DM_CMD_PACKET_ALERT,
57 NET_DM_CMD_CONFIG_GET,
58 NET_DM_CMD_CONFIG_NEW,
64 #define NET_DM_CMD_MAX (_NET_DM_CMD_MAX - 1)
67 * Our group identifiers
69 #define NET_DM_GRP_ALERT 1
74 NET_DM_ATTR_ALERT_MODE, /* u8 */
75 NET_DM_ATTR_PC, /* u64 */
76 NET_DM_ATTR_SYMBOL, /* string */
77 NET_DM_ATTR_IN_PORT, /* nested */
78 NET_DM_ATTR_TIMESTAMP, /* u64 */
79 NET_DM_ATTR_PROTO, /* u16 */
80 NET_DM_ATTR_PAYLOAD, /* binary */
82 NET_DM_ATTR_TRUNC_LEN, /* u32 */
83 NET_DM_ATTR_ORIG_LEN, /* u32 */
84 NET_DM_ATTR_QUEUE_LEN, /* u32 */
85 NET_DM_ATTR_STATS, /* nested */
86 NET_DM_ATTR_HW_STATS, /* nested */
87 NET_DM_ATTR_ORIGIN, /* u16 */
88 NET_DM_ATTR_HW_TRAP_GROUP_NAME, /* string */
89 NET_DM_ATTR_HW_TRAP_NAME, /* string */
90 NET_DM_ATTR_HW_ENTRIES, /* nested */
91 NET_DM_ATTR_HW_ENTRY, /* nested */
92 NET_DM_ATTR_HW_TRAP_COUNT, /* u32 */
93 NET_DM_ATTR_SW_DROPS, /* flag */
94 NET_DM_ATTR_HW_DROPS, /* flag */
95 NET_DM_ATTR_FLOW_ACTION_COOKIE, /* binary */
96 NET_DM_ATTR_REASON, /* string */
99 NET_DM_ATTR_MAX = __NET_DM_ATTR_MAX - 1
103 * enum net_dm_alert_mode - Alert mode.
104 * @NET_DM_ALERT_MODE_SUMMARY: A summary of recent drops is sent to user space.
105 * @NET_DM_ALERT_MODE_PACKET: Each dropped packet is sent to user space along
108 enum net_dm_alert_mode {
109 NET_DM_ALERT_MODE_SUMMARY,
110 NET_DM_ALERT_MODE_PACKET,
114 NET_DM_ATTR_PORT_NETDEV_IFINDEX, /* u32 */
115 NET_DM_ATTR_PORT_NETDEV_NAME, /* string */
117 __NET_DM_ATTR_PORT_MAX,
118 NET_DM_ATTR_PORT_MAX = __NET_DM_ATTR_PORT_MAX - 1
122 NET_DM_ATTR_STATS_DROPPED, /* u64 */
124 __NET_DM_ATTR_STATS_MAX,
125 NET_DM_ATTR_STATS_MAX = __NET_DM_ATTR_STATS_MAX - 1