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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log.h (4085B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/* Copyright (C) B.A.T.M.A.N. contributors:
      3 *
      4 * Marek Lindner, Simon Wunderlich
      5 */
      6
      7#ifndef _NET_BATMAN_ADV_LOG_H_
      8#define _NET_BATMAN_ADV_LOG_H_
      9
     10#include "main.h"
     11
     12#include <linux/atomic.h>
     13#include <linux/bitops.h>
     14#include <linux/compiler.h>
     15#include <linux/printk.h>
     16
     17#ifdef CONFIG_BATMAN_ADV_DEBUG
     18
     19int batadv_debug_log_setup(struct batadv_priv *bat_priv);
     20void batadv_debug_log_cleanup(struct batadv_priv *bat_priv);
     21
     22#else
     23
     24static inline int batadv_debug_log_setup(struct batadv_priv *bat_priv)
     25{
     26	return 0;
     27}
     28
     29static inline void batadv_debug_log_cleanup(struct batadv_priv *bat_priv)
     30{
     31}
     32
     33#endif
     34
     35/**
     36 * enum batadv_dbg_level - available log levels
     37 */
     38enum batadv_dbg_level {
     39	/** @BATADV_DBG_BATMAN: OGM and TQ computations related messages */
     40	BATADV_DBG_BATMAN	= BIT(0),
     41
     42	/** @BATADV_DBG_ROUTES: route added / changed / deleted */
     43	BATADV_DBG_ROUTES	= BIT(1),
     44
     45	/** @BATADV_DBG_TT: translation table messages */
     46	BATADV_DBG_TT		= BIT(2),
     47
     48	/** @BATADV_DBG_BLA: bridge loop avoidance messages */
     49	BATADV_DBG_BLA		= BIT(3),
     50
     51	/** @BATADV_DBG_DAT: ARP snooping and DAT related messages */
     52	BATADV_DBG_DAT		= BIT(4),
     53
     54	/** @BATADV_DBG_NC: network coding related messages */
     55	BATADV_DBG_NC		= BIT(5),
     56
     57	/** @BATADV_DBG_MCAST: multicast related messages */
     58	BATADV_DBG_MCAST	= BIT(6),
     59
     60	/** @BATADV_DBG_TP_METER: throughput meter messages */
     61	BATADV_DBG_TP_METER	= BIT(7),
     62
     63	/** @BATADV_DBG_ALL: the union of all the above log levels */
     64	BATADV_DBG_ALL		= 255,
     65};
     66
     67#ifdef CONFIG_BATMAN_ADV_DEBUG
     68int batadv_debug_log(struct batadv_priv *bat_priv, const char *fmt, ...)
     69__printf(2, 3);
     70
     71/**
     72 * _batadv_dbg() - Store debug output with(out) rate limiting
     73 * @type: type of debug message
     74 * @bat_priv: the bat priv with all the soft interface information
     75 * @ratelimited: whether output should be rate limited
     76 * @fmt: format string
     77 * @arg: variable arguments
     78 */
     79#define _batadv_dbg(type, bat_priv, ratelimited, fmt, arg...)		\
     80	do {								\
     81		struct batadv_priv *__batpriv = (bat_priv);		\
     82		if (atomic_read(&__batpriv->log_level) & (type) &&	\
     83		    (!(ratelimited) || net_ratelimit()))		\
     84			batadv_debug_log(__batpriv, fmt, ## arg);	\
     85	}								\
     86	while (0)
     87#else /* !CONFIG_BATMAN_ADV_DEBUG */
     88__printf(4, 5)
     89static inline void _batadv_dbg(int type __always_unused,
     90			       struct batadv_priv *bat_priv __always_unused,
     91			       int ratelimited __always_unused,
     92			       const char *fmt __always_unused, ...)
     93{
     94}
     95#endif
     96
     97/**
     98 * batadv_dbg() - Store debug output without rate limiting
     99 * @type: type of debug message
    100 * @bat_priv: the bat priv with all the soft interface information
    101 * @arg: format string and variable arguments
    102 */
    103#define batadv_dbg(type, bat_priv, arg...) \
    104	_batadv_dbg(type, bat_priv, 0, ## arg)
    105
    106/**
    107 * batadv_dbg_ratelimited() - Store debug output with rate limiting
    108 * @type: type of debug message
    109 * @bat_priv: the bat priv with all the soft interface information
    110 * @arg: format string and variable arguments
    111 */
    112#define batadv_dbg_ratelimited(type, bat_priv, arg...) \
    113	_batadv_dbg(type, bat_priv, 1, ## arg)
    114
    115/**
    116 * batadv_info() - Store message in debug buffer and print it to kmsg buffer
    117 * @net_dev: the soft interface net device
    118 * @fmt: format string
    119 * @arg: variable arguments
    120 */
    121#define batadv_info(net_dev, fmt, arg...)				\
    122	do {								\
    123		struct net_device *_netdev = (net_dev);                 \
    124		struct batadv_priv *_batpriv = netdev_priv(_netdev);    \
    125		batadv_dbg(BATADV_DBG_ALL, _batpriv, fmt, ## arg);	\
    126		pr_info("%s: " fmt, _netdev->name, ## arg);		\
    127	} while (0)
    128
    129/**
    130 * batadv_err() - Store error in debug buffer and print it to kmsg buffer
    131 * @net_dev: the soft interface net device
    132 * @fmt: format string
    133 * @arg: variable arguments
    134 */
    135#define batadv_err(net_dev, fmt, arg...)				\
    136	do {								\
    137		struct net_device *_netdev = (net_dev);                 \
    138		struct batadv_priv *_batpriv = netdev_priv(_netdev);    \
    139		batadv_dbg(BATADV_DBG_ALL, _batpriv, fmt, ## arg);	\
    140		pr_err("%s: " fmt, _netdev->name, ## arg);		\
    141	} while (0)
    142
    143#endif /* _NET_BATMAN_ADV_LOG_H_ */