LXR linux/include/uapi/linux/net

   1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2#ifndef __NET_DROPMON_H
   3#define __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 is_drop_point_hw(x) do {\
  14        int ____i, ____j;\
  15        for (____i = 0; ____i < 8; i ____i++)\
  16                ____j |= x[____i];\
  17        ____j;\
  18} while (0)
  19
  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
  24
  25struct net_dm_config_entry {
  26        __u32 type;
  27        __u64 data __attribute__((aligned(8)));
  28};
  29
  30struct net_dm_config_msg {
  31        __u32 entries;
  32        struct net_dm_config_entry options[0];
  33};
  34
  35struct net_dm_alert_msg {
  36        __u32 entries;
  37        struct net_dm_drop_point points[0];
  38};
  39
  40struct net_dm_user_msg {
  41        union {
  42                struct net_dm_config_msg user;
  43                struct net_dm_alert_msg alert;
  44        } u;
  45};
  46
  47
  48/* These are the netlink message types for this protocol */
  49
  50enum {
  51        NET_DM_CMD_UNSPEC = 0,
  52        NET_DM_CMD_ALERT,
  53        NET_DM_CMD_CONFIG,
  54        NET_DM_CMD_START,
  55        NET_DM_CMD_STOP,
  56        NET_DM_CMD_PACKET_ALERT,
  57        NET_DM_CMD_CONFIG_GET,
  58        NET_DM_CMD_CONFIG_NEW,
  59        NET_DM_CMD_STATS_GET,
  60        NET_DM_CMD_STATS_NEW,
  61        _NET_DM_CMD_MAX,
  62};
  63
  64#define NET_DM_CMD_MAX (_NET_DM_CMD_MAX - 1)
  65
  66/*
  67 * Our group identifiers
  68 */
  69#define NET_DM_GRP_ALERT 1
  70
  71enum net_dm_attr {
  72        NET_DM_ATTR_UNSPEC,
  73
  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 */
  81        NET_DM_ATTR_PAD,
  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
  97        __NET_DM_ATTR_MAX,
  98        NET_DM_ATTR_MAX = __NET_DM_ATTR_MAX - 1
  99};
 100
 101/**
 102 * enum net_dm_alert_mode - Alert mode.
 103 * @NET_DM_ALERT_MODE_SUMMARY: A summary of recent drops is sent to user space.
 104 * @NET_DM_ALERT_MODE_PACKET: Each dropped packet is sent to user space along
 105 *                            with metadata.
 106 */
 107enum net_dm_alert_mode {
 108        NET_DM_ALERT_MODE_SUMMARY,
 109        NET_DM_ALERT_MODE_PACKET,
 110};
 111
 112enum {
 113        NET_DM_ATTR_PORT_NETDEV_IFINDEX,        /* u32 */
 114        NET_DM_ATTR_PORT_NETDEV_NAME,           /* string */
 115
 116        __NET_DM_ATTR_PORT_MAX,
 117        NET_DM_ATTR_PORT_MAX = __NET_DM_ATTR_PORT_MAX - 1
 118};
 119
 120enum {
 121        NET_DM_ATTR_STATS_DROPPED,              /* u64 */
 122
 123        __NET_DM_ATTR_STATS_MAX,
 124        NET_DM_ATTR_STATS_MAX = __NET_DM_ATTR_STATS_MAX - 1
 125};
 126
 127enum net_dm_origin {
 128        NET_DM_ORIGIN_SW,
 129        NET_DM_ORIGIN_HW,
 130};
 131
 132#endif
 133