/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) B.A.T.M.A.N. contributors:
*
* Marek Lindner , Simon Wunderlich
*/
#ifndef _NET_BATMAN_ADV_LOG_H_
#define _NET_BATMAN_ADV_LOG_H_
#include "main.h"
#include <linux/atomic.h>
#include <linux/bitops.h>
#include <linux/compiler.h>
#include <linux/printk.h>
#ifdef CONFIG_BATMAN_ADV_DEBUG
int batadv_debug_log_setup(struct batadv_priv *bat_priv);
void batadv_debug_log_cleanup(struct batadv_priv *bat_priv);
#else
static inline int batadv_debug_log_setup(struct batadv_priv *bat_priv)
{
return 0 ;
}
static inline void batadv_debug_log_cleanup(struct batadv_priv *bat_priv)
{
}
#endif
/**
* enum batadv_dbg_level - available log levels
*/
enum batadv_dbg_level {
/** @BATADV_DBG_BATMAN: OGM and TQ computations related messages */
BATADV_DBG_BATMAN = BIT(0 ),
/** @BATADV_DBG_ROUTES: route added / changed / deleted */
BATADV_DBG_ROUTES = BIT(1 ),
/** @BATADV_DBG_TT: translation table messages */
BATADV_DBG_TT = BIT(2 ),
/** @BATADV_DBG_BLA: bridge loop avoidance messages */
BATADV_DBG_BLA = BIT(3 ),
/** @BATADV_DBG_DAT: ARP snooping and DAT related messages */
BATADV_DBG_DAT = BIT(4 ),
/** @BATADV_DBG_NC: network coding related messages */
BATADV_DBG_NC = BIT(5 ),
/** @BATADV_DBG_MCAST: multicast related messages */
BATADV_DBG_MCAST = BIT(6 ),
/** @BATADV_DBG_TP_METER: throughput meter messages */
BATADV_DBG_TP_METER = BIT(7 ),
/** @BATADV_DBG_ALL: the union of all the above log levels */
BATADV_DBG_ALL = 255 ,
};
#ifdef CONFIG_BATMAN_ADV_DEBUG
int batadv_debug_log(struct batadv_priv *bat_priv, const char *fmt, ...)
__printf(2 , 3 );
/**
* _ batadv_dbg ( ) - Store debug output with ( out ) rate limiting
* @ type : type of debug message
* @ bat_priv : the bat priv with all the mesh interface information
* @ ratelimited : whether output should be rate limited
* @ fmt : format string
* @ arg : variable arguments
*/
#define _batadv_dbg(type, bat_priv, ratelimited, fmt, arg...) \
do { \
struct batadv_priv *__batpriv = (bat_priv); \
if (atomic_read(&__batpriv->log_level) & (type) && \
(!(ratelimited) || net_ratelimit())) \
batadv_debug_log(__batpriv, fmt, ## arg); \
} \
while (0 )
#else /* !CONFIG_BATMAN_ADV_DEBUG */
__printf(4 , 5 )
static inline void _batadv_dbg(int type __always_unused,
struct batadv_priv *bat_priv __always_unused,
int ratelimited __always_unused,
const char *fmt __always_unused, ...)
{
}
#endif
/**
* batadv_dbg ( ) - Store debug output without rate limiting
* @ type : type of debug message
* @ bat_priv : the bat priv with all the mesh interface information
* @ arg : format string and variable arguments
*/
#define batadv_dbg(type, bat_priv, arg...) \
_batadv_dbg(type, bat_priv, 0 , ## arg)
/**
* batadv_dbg_ratelimited ( ) - Store debug output with rate limiting
* @ type : type of debug message
* @ bat_priv : the bat priv with all the mesh interface information
* @ arg : format string and variable arguments
*/
#define batadv_dbg_ratelimited(type, bat_priv, arg...) \
_batadv_dbg(type, bat_priv, 1 , ## arg)
/**
* batadv_info ( ) - Store message in debug buffer and print it to kmsg buffer
* @ net_dev : the mesh interface net device
* @ fmt : format string
* @ arg : variable arguments
*/
#define batadv_info(net_dev, fmt, arg...) \
do { \
struct net_device *_netdev = (net_dev); \
struct batadv_priv *_batpriv = netdev_priv(_netdev); \
batadv_dbg(BATADV_DBG_ALL, _batpriv, fmt, ## arg); \
pr_info("%s: " fmt, _netdev->name, ## arg); \
} while (0 )
/**
* batadv_err ( ) - Store error in debug buffer and print it to kmsg buffer
* @ net_dev : the mesh interface net device
* @ fmt : format string
* @ arg : variable arguments
*/
#define batadv_err(net_dev, fmt, arg...) \
do { \
struct net_device *_netdev = (net_dev); \
struct batadv_priv *_batpriv = netdev_priv(_netdev); \
batadv_dbg(BATADV_DBG_ALL, _batpriv, fmt, ## arg); \
pr_err("%s: " fmt, _netdev->name, ## arg); \
} while (0 )
#endif /* _NET_BATMAN_ADV_LOG_H_ */
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