1 /* Copyright (C) 2007-2016 B.A.T.M.A.N. contributors:
2 *
3 * Marek Lindner, Simon Wunderlich
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of version 2 of the GNU General Public
7 * License as published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, see <http://www.gnu.org/licenses/>.
16 */
17
18 #ifndef _NET_BATMAN_ADV_LOG_H_
19 #define _NET_BATMAN_ADV_LOG_H_
20
21 #include "main.h"
22
23 #include <linux/bitops.h>
24 #include <linux/compiler.h>
25 #include <linux/printk.h>
26
27 #ifdef CONFIG_BATMAN_ADV_DEBUG
28
29 int batadv_debug_log_setup(struct batadv_priv *bat_priv);
30 void batadv_debug_log_cleanup(struct batadv_priv *bat_priv);
31
32 #else
33
batadv_debug_log_setup(struct batadv_priv * bat_priv)34 static inline int batadv_debug_log_setup(struct batadv_priv *bat_priv)
35 {
36 return 0;
37 }
38
batadv_debug_log_cleanup(struct batadv_priv * bat_priv)39 static inline void batadv_debug_log_cleanup(struct batadv_priv *bat_priv)
40 {
41 }
42
43 #endif
44
45 /**
46 * enum batadv_dbg_level - available log levels
47 * @BATADV_DBG_BATMAN: OGM and TQ computations related messages
48 * @BATADV_DBG_ROUTES: route added / changed / deleted
49 * @BATADV_DBG_TT: translation table messages
50 * @BATADV_DBG_BLA: bridge loop avoidance messages
51 * @BATADV_DBG_DAT: ARP snooping and DAT related messages
52 * @BATADV_DBG_NC: network coding related messages
53 * @BATADV_DBG_MCAST: multicast related messages
54 * @BATADV_DBG_TP_METER: throughput meter messages
55 * @BATADV_DBG_ALL: the union of all the above log levels
56 */
57 enum batadv_dbg_level {
58 BATADV_DBG_BATMAN = BIT(0),
59 BATADV_DBG_ROUTES = BIT(1),
60 BATADV_DBG_TT = BIT(2),
61 BATADV_DBG_BLA = BIT(3),
62 BATADV_DBG_DAT = BIT(4),
63 BATADV_DBG_NC = BIT(5),
64 BATADV_DBG_MCAST = BIT(6),
65 BATADV_DBG_TP_METER = BIT(7),
66 BATADV_DBG_ALL = 255,
67 };
68
69 #ifdef CONFIG_BATMAN_ADV_DEBUG
70 int batadv_debug_log(struct batadv_priv *bat_priv, const char *fmt, ...)
71 __printf(2, 3);
72
73 /* possibly ratelimited debug output */
74 #define _batadv_dbg(type, bat_priv, ratelimited, fmt, arg...) \
75 do { \
76 if (atomic_read(&bat_priv->log_level) & type && \
77 (!ratelimited || net_ratelimit())) \
78 batadv_debug_log(bat_priv, fmt, ## arg);\
79 } \
80 while (0)
81 #else /* !CONFIG_BATMAN_ADV_DEBUG */
82 __printf(4, 5)
_batadv_dbg(int type __always_unused,struct batadv_priv * bat_priv __always_unused,int ratelimited __always_unused,const char * fmt __always_unused,...)83 static inline void _batadv_dbg(int type __always_unused,
84 struct batadv_priv *bat_priv __always_unused,
85 int ratelimited __always_unused,
86 const char *fmt __always_unused, ...)
87 {
88 }
89 #endif
90
91 #define batadv_dbg(type, bat_priv, arg...) \
92 _batadv_dbg(type, bat_priv, 0, ## arg)
93 #define batadv_dbg_ratelimited(type, bat_priv, arg...) \
94 _batadv_dbg(type, bat_priv, 1, ## arg)
95
96 #define batadv_info(net_dev, fmt, arg...) \
97 do { \
98 struct net_device *_netdev = (net_dev); \
99 struct batadv_priv *_batpriv = netdev_priv(_netdev); \
100 batadv_dbg(BATADV_DBG_ALL, _batpriv, fmt, ## arg); \
101 pr_info("%s: " fmt, _netdev->name, ## arg); \
102 } while (0)
103 #define batadv_err(net_dev, fmt, arg...) \
104 do { \
105 struct net_device *_netdev = (net_dev); \
106 struct batadv_priv *_batpriv = netdev_priv(_netdev); \
107 batadv_dbg(BATADV_DBG_ALL, _batpriv, fmt, ## arg); \
108 pr_err("%s: " fmt, _netdev->name, ## arg); \
109 } while (0)
110
111 #endif /* _NET_BATMAN_ADV_LOG_H_ */
112