6e215fd8eb
It is slightly irritating that comments after a long line span over multiple lines without any code. It is easier to put them before the actual code and reduce the number of lines which the eye has to read. Signed-off-by: Sven Eckelmann <sven@narfation.org>
183 lines
5.1 KiB
C
183 lines
5.1 KiB
C
/*
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* Copyright (C) 2007-2011 B.A.T.M.A.N. contributors:
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*
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* Marek Lindner, Simon Wunderlich
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of version 2 of the GNU General Public
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* License as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA
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*
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*/
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#ifndef _NET_BATMAN_ADV_MAIN_H_
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#define _NET_BATMAN_ADV_MAIN_H_
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#define DRIVER_AUTHOR "Marek Lindner <lindner_marek@yahoo.de>, " \
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"Simon Wunderlich <siwu@hrz.tu-chemnitz.de>"
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#define DRIVER_DESC "B.A.T.M.A.N. advanced"
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#define DRIVER_DEVICE "batman-adv"
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#define SOURCE_VERSION "next"
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/* B.A.T.M.A.N. parameters */
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#define TQ_MAX_VALUE 255
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#define JITTER 20
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/* Time To Live of broadcast messages */
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#define TTL 50
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/* purge originators after time in seconds if no valid packet comes in
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* -> TODO: check influence on TQ_LOCAL_WINDOW_SIZE */
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#define PURGE_TIMEOUT 200
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#define TT_LOCAL_TIMEOUT 3600 /* in seconds */
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/* sliding packet range of received originator messages in squence numbers
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* (should be a multiple of our word size) */
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#define TQ_LOCAL_WINDOW_SIZE 64
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#define TQ_GLOBAL_WINDOW_SIZE 5
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#define TQ_LOCAL_BIDRECT_SEND_MINIMUM 1
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#define TQ_LOCAL_BIDRECT_RECV_MINIMUM 1
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#define TQ_TOTAL_BIDRECT_LIMIT 1
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#define NUM_WORDS (TQ_LOCAL_WINDOW_SIZE / WORD_BIT_SIZE)
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#define LOG_BUF_LEN 8192 /* has to be a power of 2 */
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#define VIS_INTERVAL 5000 /* 5 seconds */
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/* how much worse secondary interfaces may be to be considered as bonding
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* candidates */
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#define BONDING_TQ_THRESHOLD 50
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/* should not be bigger than 512 bytes or change the size of
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* forw_packet->direct_link_flags */
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#define MAX_AGGREGATION_BYTES 512
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#define MAX_AGGREGATION_MS 100
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#define SOFTIF_NEIGH_TIMEOUT 180000 /* 3 minutes */
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/* don't reset again within 30 seconds */
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#define RESET_PROTECTION_MS 30000
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#define EXPECTED_SEQNO_RANGE 65536
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#define MESH_INACTIVE 0
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#define MESH_ACTIVE 1
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#define MESH_DEACTIVATING 2
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#define BCAST_QUEUE_LEN 256
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#define BATMAN_QUEUE_LEN 256
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/*
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* Debug Messages
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*/
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#ifdef pr_fmt
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#undef pr_fmt
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#endif
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/* Append 'batman-adv: ' before kernel messages */
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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/* all messages related to routing / flooding / broadcasting / etc */
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#define DBG_BATMAN 1
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/* route or tt entry added / changed / deleted */
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#define DBG_ROUTES 2
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#define DBG_ALL 3
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/*
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* Vis
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*/
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/*
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* Kernel headers
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*/
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#include <linux/mutex.h> /* mutex */
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#include <linux/module.h> /* needed by all modules */
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#include <linux/netdevice.h> /* netdevice */
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#include <linux/etherdevice.h> /* ethernet address classifaction */
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#include <linux/if_ether.h> /* ethernet header */
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#include <linux/poll.h> /* poll_table */
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#include <linux/kthread.h> /* kernel threads */
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#include <linux/pkt_sched.h> /* schedule types */
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#include <linux/workqueue.h> /* workqueue */
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#include <linux/slab.h>
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#include <net/sock.h> /* struct sock */
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#include <linux/jiffies.h>
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#include <linux/seq_file.h>
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#include "types.h"
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#ifndef REVISION_VERSION
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#define REVISION_VERSION_STR ""
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#else
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#define REVISION_VERSION_STR " "REVISION_VERSION
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#endif
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extern struct list_head hardif_list;
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extern unsigned char broadcast_addr[];
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extern struct workqueue_struct *bat_event_workqueue;
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int mesh_init(struct net_device *soft_iface);
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void mesh_free(struct net_device *soft_iface);
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void inc_module_count(void);
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void dec_module_count(void);
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int is_my_mac(uint8_t *addr);
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#ifdef CONFIG_BATMAN_ADV_DEBUG
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int debug_log(struct bat_priv *bat_priv, char *fmt, ...);
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#define bat_dbg(type, bat_priv, fmt, arg...) \
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do { \
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if (atomic_read(&bat_priv->log_level) & type) \
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debug_log(bat_priv, fmt, ## arg); \
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} \
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while (0)
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#else /* !CONFIG_BATMAN_ADV_DEBUG */
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static inline void bat_dbg(char type __always_unused,
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struct bat_priv *bat_priv __always_unused,
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char *fmt __always_unused, ...)
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{
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}
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#endif
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#define bat_info(net_dev, fmt, arg...) \
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do { \
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struct net_device *_netdev = (net_dev); \
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struct bat_priv *_batpriv = netdev_priv(_netdev); \
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bat_dbg(DBG_ALL, _batpriv, fmt, ## arg); \
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pr_info("%s: " fmt, _netdev->name, ## arg); \
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} while (0)
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#define bat_err(net_dev, fmt, arg...) \
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do { \
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struct net_device *_netdev = (net_dev); \
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struct bat_priv *_batpriv = netdev_priv(_netdev); \
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bat_dbg(DBG_ALL, _batpriv, fmt, ## arg); \
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pr_err("%s: " fmt, _netdev->name, ## arg); \
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} while (0)
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/**
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* returns 1 if they are the same ethernet addr
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*
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* note: can't use compare_ether_addr() as it requires aligned memory
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*/
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static inline int compare_eth(void *data1, void *data2)
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{
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return (memcmp(data1, data2, ETH_ALEN) == 0 ? 1 : 0);
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}
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#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
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#endif /* _NET_BATMAN_ADV_MAIN_H_ */
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