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 34 static inline int batadv_debug_log_setup(struct batadv_priv *bat_priv) 35 { 36 return 0; 37 } 38 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 = 127, 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) 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