cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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net_dropmon.h (2922B)

      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	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 */
    108enum net_dm_alert_mode {
    109	NET_DM_ALERT_MODE_SUMMARY,
    110	NET_DM_ALERT_MODE_PACKET,
    111};
    112
    113enum {
    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
    121enum {
    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
    128enum net_dm_origin {
    129	NET_DM_ORIGIN_SW,
    130	NET_DM_ORIGIN_HW,
    131};
    132
    133#endif