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[0];
  33 };
  34
  35 struct net_dm_alert_msg {
  36         __u32 entries;
  37         struct net_dm_drop_point points[0];
  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_MAX,
  57 };
  58
  59 #define NET_DM_CMD_MAX (_NET_DM_CMD_MAX - 1)
  60
  61 /*
  62  * Our group identifiers
  63  */
  64 #define NET_DM_GRP_ALERT 1
  65 #endif