release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/staging/batman-adv/main.h

   1 /*
   2  * Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
   3  *
   4  * Marek Lindner, Simon Wunderlich
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of version 2 of the GNU General Public
   8  * License as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  18  * 02110-1301, USA
  19  *
  20  */
  21
  22 #ifndef _NET_BATMAN_ADV_MAIN_H_
  23 #define _NET_BATMAN_ADV_MAIN_H_
  24
  25 /* Kernel Programming */
  26 #define LINUX
  27
  28 #define DRIVER_AUTHOR "Marek Lindner <lindner_marek@yahoo.de>, " \
  29                       "Simon Wunderlich <siwu@hrz.tu-chemnitz.de>"
  30 #define DRIVER_DESC   "B.A.T.M.A.N. advanced"
  31 #define DRIVER_DEVICE "batman-adv"
  32
  33 #define SOURCE_VERSION "maint"
  34
  35
  36 /* B.A.T.M.A.N. parameters */
  37
  38 #define TQ_MAX_VALUE 255
  39 #define JITTER 20
  40 #define TTL 50                    /* Time To Live of broadcast messages */
  41
  42 #define PURGE_TIMEOUT 200       /* purge originators after time in seconds if no
  43                                    * valid packet comes in -> TODO: check
  44                                    * influence on TQ_LOCAL_WINDOW_SIZE */
  45 #define LOCAL_HNA_TIMEOUT 3600 /* in seconds */
  46
  47 #define TQ_LOCAL_WINDOW_SIZE 64   /* sliding packet range of received originator
  48                                    * messages in squence numbers (should be a
  49                                    * multiple of our word size) */
  50 #define TQ_GLOBAL_WINDOW_SIZE 5
  51 #define TQ_LOCAL_BIDRECT_SEND_MINIMUM 1
  52 #define TQ_LOCAL_BIDRECT_RECV_MINIMUM 1
  53 #define TQ_TOTAL_BIDRECT_LIMIT 1
  54
  55 #define TQ_HOP_PENALTY 10
  56
  57 #define NUM_WORDS (TQ_LOCAL_WINDOW_SIZE / WORD_BIT_SIZE)
  58
  59 #define PACKBUFF_SIZE 2000
  60 #define LOG_BUF_LEN 8192          /* has to be a power of 2 */
  61 #define ETH_STR_LEN 20
  62
  63 #define VIS_INTERVAL 5000       /* 5 seconds */
  64
  65 /* how much worse secondary interfaces may be to
  66  * to be considered as bonding candidates */
  67
  68 #define BONDING_TQ_THRESHOLD    50
  69
  70 #define MAX_AGGREGATION_BYTES 512 /* should not be bigger than 512 bytes or
  71                                    * change the size of
  72                                    * forw_packet->direct_link_flags */
  73 #define MAX_AGGREGATION_MS 100
  74
  75 #define RESET_PROTECTION_MS 30000
  76 #define EXPECTED_SEQNO_RANGE    65536
  77 /* don't reset again within 30 seconds */
  78
  79 #define MODULE_INACTIVE 0
  80 #define MODULE_ACTIVE 1
  81 #define MODULE_DEACTIVATING 2
  82
  83 #define BCAST_QUEUE_LEN         256
  84 #define BATMAN_QUEUE_LEN        256
  85
  86 /*
  87  * Debug Messages
  88  */
  89 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt /* Append 'batman-adv: ' before
  90                                              * kernel messages */
  91
  92 #define DBG_BATMAN 1    /* all messages related to routing / flooding /
  93                          * broadcasting / etc */
  94 #define DBG_ROUTES 2    /* route or hna added / changed / deleted */
  95 #define DBG_ALL 3
  96
  97 #define LOG_BUF_LEN 8192          /* has to be a power of 2 */
  98
  99
 100 /*
 101  *  Vis
 102  */
 103
 104 /* #define VIS_SUBCLUSTERS_DISABLED */
 105
 106 /*
 107  * Kernel headers
 108  */
 109
 110 #include <linux/mutex.h>        /* mutex */
 111 #include <linux/module.h>       /* needed by all modules */
 112 #include <linux/netdevice.h>    /* netdevice */
 113 #include <linux/if_ether.h>     /* ethernet header */
 114 #include <linux/poll.h>         /* poll_table */
 115 #include <linux/kthread.h>      /* kernel threads */
 116 #include <linux/pkt_sched.h>    /* schedule types */
 117 #include <linux/workqueue.h>    /* workqueue */
 118 #include <linux/slab.h>
 119 #include <net/sock.h>           /* struct sock */
 120 #include <linux/jiffies.h>
 121 #include <linux/seq_file.h>
 122 #include "types.h"
 123
 124 #ifndef REVISION_VERSION
 125 #define REVISION_VERSION_STR ""
 126 #else
 127 #define REVISION_VERSION_STR " "REVISION_VERSION
 128 #endif
 129
 130 extern struct list_head if_list;
 131 extern struct hlist_head forw_bat_list;
 132 extern struct hlist_head forw_bcast_list;
 133 extern struct hashtable_t *orig_hash;
 134
 135 extern spinlock_t orig_hash_lock;
 136 extern spinlock_t forw_bat_list_lock;
 137 extern spinlock_t forw_bcast_list_lock;
 138
 139 extern atomic_t bcast_queue_left;
 140 extern atomic_t batman_queue_left;
 141 extern int16_t num_hna;
 142
 143 extern struct net_device *soft_device;
 144
 145 extern unsigned char broadcast_addr[];
 146 extern atomic_t module_state;
 147 extern struct workqueue_struct *bat_event_workqueue;
 148
 149 void activate_module(void);
 150 void deactivate_module(void);
 151 void inc_module_count(void);
 152 void dec_module_count(void);
 153 int addr_to_string(char *buff, uint8_t *addr);
 154 int compare_orig(void *data1, void *data2);
 155 int choose_orig(void *data, int32_t size);
 156 int is_my_mac(uint8_t *addr);
 157 int is_bcast(uint8_t *addr);
 158 int is_mcast(uint8_t *addr);
 159
 160 #ifdef CONFIG_BATMAN_ADV_DEBUG
 161 extern int debug_log(struct bat_priv *bat_priv, char *fmt, ...);
 162
 163 #define bat_dbg(type, bat_priv, fmt, arg...)                    \
 164         do {                                                    \
 165                 if (atomic_read(&bat_priv->log_level) & type)   \
 166                         debug_log(bat_priv, fmt, ## arg);       \
 167         }                                                       \
 168         while (0)
 169 #else /* !CONFIG_BATMAN_ADV_DEBUG */
 170 static inline void bat_dbg(char type __attribute__((unused)),
 171                            struct bat_priv *bat_priv __attribute__((unused)),
 172                            char *fmt __attribute__((unused)), ...)
 173 {
 174 }
 175 #endif
 176
 177 #define bat_warning(net_dev, fmt, arg...)                               \
 178         do {                                                            \
 179                 struct net_device *_netdev = (net_dev);                 \
 180                 struct bat_priv *_batpriv = netdev_priv(_netdev);       \
 181                 bat_dbg(DBG_ALL, _batpriv, fmt, ## arg);                \
 182                 pr_warning("%s: " fmt, _netdev->name, ## arg);          \
 183         } while (0)
 184 #define bat_info(net_dev, fmt, arg...)                                  \
 185         do {                                                            \
 186                 struct net_device *_netdev = (net_dev);                 \
 187                 struct bat_priv *_batpriv = netdev_priv(_netdev);       \
 188                 bat_dbg(DBG_ALL, _batpriv, fmt, ## arg);                \
 189                 pr_info("%s: " fmt, _netdev->name, ## arg);             \
 190         } while (0)
 191 #define bat_err(net_dev, fmt, arg...)                                   \
 192         do {                                                            \
 193                 struct net_device *_netdev = (net_dev);                 \
 194                 struct bat_priv *_batpriv = netdev_priv(_netdev);       \
 195                 bat_dbg(DBG_ALL, _batpriv, fmt, ## arg);                \
 196                 pr_err("%s: " fmt, _netdev->name, ## arg);              \
 197         } while (0)
 198
 199 #endif /* _NET_BATMAN_ADV_MAIN_H_ */