include/uapi/linux/net_dropmon.h

   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
   8 struct 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
  25 struct net_dm_config_entry {
  26         __u32 type;
  27         __u64 data __attribute__((aligned(8)));
  28 };
  29
  30 struct net_dm_config_msg {
  31         __u32 entries;
  32         struct net_dm_config_entry options[];
  33 };
  34
  35 struct net_dm_alert_msg {
  36         __u32 entries;
  37         struct net_dm_drop_point points[];
  38 };
  39
  40 struct 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
  50 enum {
  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
  71 enum 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         NET_DM_ATTR_REASON,                     /* string */
  97
  98         __NET_DM_ATTR_MAX,
  99         NET_DM_ATTR_MAX = __NET_DM_ATTR_MAX - 1
 100 };
 101
 102 /**
 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
 106  *                            with metadata.
 107  */
 108 enum net_dm_alert_mode {
 109         NET_DM_ALERT_MODE_SUMMARY,
 110         NET_DM_ALERT_MODE_PACKET,
 111 };
 112
 113 enum {
 114         NET_DM_ATTR_PORT_NETDEV_IFINDEX,        /* u32 */
 115         NET_DM_ATTR_PORT_NETDEV_NAME,           /* string */
 116
 117         __NET_DM_ATTR_PORT_MAX,
 118         NET_DM_ATTR_PORT_MAX = __NET_DM_ATTR_PORT_MAX - 1
 119 };
 120
 121 enum {
 122         NET_DM_ATTR_STATS_DROPPED,              /* u64 */
 123
 124         __NET_DM_ATTR_STATS_MAX,
 125         NET_DM_ATTR_STATS_MAX = __NET_DM_ATTR_STATS_MAX - 1
 126 };
 127
 128 enum net_dm_origin {
 129         NET_DM_ORIGIN_SW,
 130         NET_DM_ORIGIN_HW,
 131 };
 132
 133 #endif