1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 #ifndef _UAPI__NET_DROPMON_H 3 #define _UAPI__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 NET_DM_CFG_VERSION 0 14 #define NET_DM_CFG_ALERT_COUNT 1 15 #define NET_DM_CFG_ALERT_DELAY 2 16 #define NET_DM_CFG_MAX 3 17 18 struct net_dm_config_entry { 19 __u32 type; 20 __u64 data __attribute__((aligned(8))); 21 }; 22 23 struct net_dm_config_msg { 24 __u32 entries; 25 struct net_dm_config_entry options[]; 26 }; 27 28 struct net_dm_alert_msg { 29 __u32 entries; 30 struct net_dm_drop_point points[]; 31 }; 32 33 struct net_dm_user_msg { 34 union { 35 struct net_dm_config_msg user; 36 struct net_dm_alert_msg alert; 37 } u; 38 }; 39 40 41 /* These are the netlink message types for this protocol */ 42 43 enum { 44 NET_DM_CMD_UNSPEC = 0, 45 NET_DM_CMD_ALERT, 46 NET_DM_CMD_CONFIG, 47 NET_DM_CMD_START, 48 NET_DM_CMD_STOP, 49 NET_DM_CMD_PACKET_ALERT, 50 NET_DM_CMD_CONFIG_GET, 51 NET_DM_CMD_CONFIG_NEW, 52 NET_DM_CMD_STATS_GET, 53 NET_DM_CMD_STATS_NEW, 54 _NET_DM_CMD_MAX, 55 }; 56 57 #define NET_DM_CMD_MAX (_NET_DM_CMD_MAX - 1) 58 59 /* 60 * Our group identifiers 61 */ 62 #define NET_DM_GRP_ALERT 1 63 64 enum net_dm_attr { 65 NET_DM_ATTR_UNSPEC, 66 67 NET_DM_ATTR_ALERT_MODE, /* u8 */ 68 NET_DM_ATTR_PC, /* u64 */ 69 NET_DM_ATTR_SYMBOL, /* string */ 70 NET_DM_ATTR_IN_PORT, /* nested */ 71 NET_DM_ATTR_TIMESTAMP, /* u64 */ 72 NET_DM_ATTR_PROTO, /* u16 */ 73 NET_DM_ATTR_PAYLOAD, /* binary */ 74 NET_DM_ATTR_PAD, 75 NET_DM_ATTR_TRUNC_LEN, /* u32 */ 76 NET_DM_ATTR_ORIG_LEN, /* u32 */ 77 NET_DM_ATTR_QUEUE_LEN, /* u32 */ 78 NET_DM_ATTR_STATS, /* nested */ 79 NET_DM_ATTR_HW_STATS, /* nested */ 80 NET_DM_ATTR_ORIGIN, /* u16 */ 81 NET_DM_ATTR_HW_TRAP_GROUP_NAME, /* string */ 82 NET_DM_ATTR_HW_TRAP_NAME, /* string */ 83 NET_DM_ATTR_HW_ENTRIES, /* nested */ 84 NET_DM_ATTR_HW_ENTRY, /* nested */ 85 NET_DM_ATTR_HW_TRAP_COUNT, /* u32 */ 86 NET_DM_ATTR_SW_DROPS, /* flag */ 87 NET_DM_ATTR_HW_DROPS, /* flag */ 88 NET_DM_ATTR_FLOW_ACTION_COOKIE, /* binary */ 89 NET_DM_ATTR_REASON, /* string */ 90 91 __NET_DM_ATTR_MAX, 92 NET_DM_ATTR_MAX = __NET_DM_ATTR_MAX - 1 93 }; 94 95 /** 96 * enum net_dm_alert_mode - Alert mode. 97 * @NET_DM_ALERT_MODE_SUMMARY: A summary of recent drops is sent to user space. 98 * @NET_DM_ALERT_MODE_PACKET: Each dropped packet is sent to user space along 99 * with metadata. 100 */ 101 enum net_dm_alert_mode { 102 NET_DM_ALERT_MODE_SUMMARY, 103 NET_DM_ALERT_MODE_PACKET, 104 }; 105 106 enum { 107 NET_DM_ATTR_PORT_NETDEV_IFINDEX, /* u32 */ 108 NET_DM_ATTR_PORT_NETDEV_NAME, /* string */ 109 110 __NET_DM_ATTR_PORT_MAX, 111 NET_DM_ATTR_PORT_MAX = __NET_DM_ATTR_PORT_MAX - 1 112 }; 113 114 enum { 115 NET_DM_ATTR_STATS_DROPPED, /* u64 */ 116 117 __NET_DM_ATTR_STATS_MAX, 118 NET_DM_ATTR_STATS_MAX = __NET_DM_ATTR_STATS_MAX - 1 119 }; 120 121 enum net_dm_origin { 122 NET_DM_ORIGIN_SW, 123 NET_DM_ORIGIN_HW, 124 }; 125 126 #endif 127