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Diffstat (limited to 'net/batman-adv/log.h')
| -rw-r--r-- | net/batman-adv/log.h | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/net/batman-adv/log.h b/net/batman-adv/log.h new file mode 100644 index 000000000..35f4f397e --- /dev/null +++ b/net/batman-adv/log.h @@ -0,0 +1,154 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2007-2018 B.A.T.M.A.N. contributors: + * + * Marek Lindner, Simon Wunderlich + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of version 2 of the GNU General Public + * License as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _NET_BATMAN_ADV_LOG_H_ +#define _NET_BATMAN_ADV_LOG_H_ + +#include "main.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) ratelimiting + * @type: type of debug message + * @bat_priv: the bat priv with all the soft 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 ratelimiting + * @type: type of debug message + * @bat_priv: the bat priv with all the soft 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 ratelimiting + * @type: type of debug message + * @bat_priv: the bat priv with all the soft 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 soft 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 soft 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_ */ |