Quelle net_dropmon.h Sprache: C

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI__NET_DROPMON_H
#define _UAPI__NET_DROPMON_H

#include <linux/types.h>
#include <linux/netlink.h>

struct net_dm_drop_point {
__u8 pc[8];
__u32 count;
};

#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[];
};

struct net_dm_alert_msg {
__u32 entries;
struct net_dm_drop_point points[];
};

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_CONFIG_GET,
NET_DM_CMD_CONFIG_NEW,
NET_DM_CMD_STATS_GET,
NET_DM_CMD_STATS_NEW,
_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,   /* u64 */
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_QUEUE_LEN,   /* u32 */
NET_DM_ATTR_STATS,   /* nested */
NET_DM_ATTR_HW_STATS,   /* nested */
NET_DM_ATTR_ORIGIN,   /* u16 */
NET_DM_ATTR_HW_TRAP_GROUP_NAME,  /* string */
NET_DM_ATTR_HW_TRAP_NAME,  /* string */
NET_DM_ATTR_HW_ENTRIES,   /* nested */
NET_DM_ATTR_HW_ENTRY,   /* nested */
NET_DM_ATTR_HW_TRAP_COUNT,  /* u32 */
NET_DM_ATTR_SW_DROPS,   /* flag */
NET_DM_ATTR_HW_DROPS,   /* flag */
NET_DM_ATTR_FLOW_ACTION_COOKIE,  /* binary */
NET_DM_ATTR_REASON,   /* string */

__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_NETDEV_NAME,  /* string */

__NET_DM_ATTR_PORT_MAX,
NET_DM_ATTR_PORT_MAX = __NET_DM_ATTR_PORT_MAX - 1
};

enum {
NET_DM_ATTR_STATS_DROPPED,  /* u64 */

__NET_DM_ATTR_STATS_MAX,
NET_DM_ATTR_STATS_MAX = __NET_DM_ATTR_STATS_MAX - 1
};

enum net_dm_origin {
NET_DM_ORIGIN_SW,
NET_DM_ORIGIN_HW,
};

#endif

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