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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef __NET_DROPMON_H
#define __NET_DROPMON_H
#include <linux/types.h>
#include <linux/netlink.h>
struct net_dm_drop_point {
__u8 pc[8];
__u32 count;
};
#define is_drop_point_hw(x) do {\
int ____i, ____j;\
for (____i = 0; ____i < 8; i ____i++)\
____j |= x[____i];\
____j;\
} while (0)
#define NET_DM_CFG_VERSION 0
#define NET_DM_CFG_ALERT_COUNT 1
#define NET_DM_CFG_ALERT_DELAY 2
#define NET_DM_CFG_MAX 3
struct net_dm_config_entry {
__u32 type;
__u64 data __attribute__((aligned(8)));
};
struct net_dm_config_msg {
__u32 entries;
struct net_dm_config_entry options[0];
};
struct net_dm_alert_msg {
__u32 entries;
struct net_dm_drop_point points[0];
};
struct net_dm_user_msg {
union {
struct net_dm_config_msg user;
struct net_dm_alert_msg alert;
} u;
};
/* These are the netlink message types for this protocol */
enum {
NET_DM_CMD_UNSPEC = 0,
NET_DM_CMD_ALERT,
NET_DM_CMD_CONFIG,
NET_DM_CMD_START,
NET_DM_CMD_STOP,
NET_DM_CMD_PACKET_ALERT,
_NET_DM_CMD_MAX,
};
#define NET_DM_CMD_MAX (_NET_DM_CMD_MAX - 1)
/*
* Our group identifiers
*/
#define NET_DM_GRP_ALERT 1
enum net_dm_attr {
NET_DM_ATTR_UNSPEC,
NET_DM_ATTR_ALERT_MODE, /* u8 */
NET_DM_ATTR_PC, /* u64 */
NET_DM_ATTR_SYMBOL, /* string */
NET_DM_ATTR_IN_PORT, /* nested */
NET_DM_ATTR_TIMESTAMP, /* struct timespec */
NET_DM_ATTR_PROTO, /* u16 */
NET_DM_ATTR_PAYLOAD, /* binary */
NET_DM_ATTR_PAD,
NET_DM_ATTR_TRUNC_LEN, /* u32 */
NET_DM_ATTR_ORIG_LEN, /* u32 */
__NET_DM_ATTR_MAX,
NET_DM_ATTR_MAX = __NET_DM_ATTR_MAX - 1
};
/**
* enum net_dm_alert_mode - Alert mode.
* @NET_DM_ALERT_MODE_SUMMARY: A summary of recent drops is sent to user space.
* @NET_DM_ALERT_MODE_PACKET: Each dropped packet is sent to user space along
* with metadata.
*/
enum net_dm_alert_mode {
NET_DM_ALERT_MODE_SUMMARY,
NET_DM_ALERT_MODE_PACKET,
};
enum {
NET_DM_ATTR_PORT_NETDEV_IFINDEX, /* u32 */
__NET_DM_ATTR_PORT_MAX,
NET_DM_ATTR_PORT_MAX = __NET_DM_ATTR_PORT_MAX - 1
};
#endif
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