2 * Copyright (C) 2007-2010 B.A.T.M.A.N. contributors:
4 * Marek Lindner, Simon Wunderlich
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.
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.
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
22 /* Kernel Programming */
25 #define DRIVER_AUTHOR "Marek Lindner <lindner_marek@yahoo.de>, Simon Wunderlich <siwu@hrz.tu-chemnitz.de>"
26 #define DRIVER_DESC "B.A.T.M.A.N. advanced"
27 #define DRIVER_DEVICE "batman-adv"
29 #define SOURCE_VERSION "0.2.2-beta"
32 /* B.A.T.M.A.N. parameters */
34 #define TQ_MAX_VALUE 255
36 #define TTL 50 /* Time To Live of broadcast messages */
38 #define PURGE_TIMEOUT 200000 /* purge originators after time in ms if no
39 * valid packet comes in -> TODO: check
40 * influence on TQ_LOCAL_WINDOW_SIZE */
41 #define LOCAL_HNA_TIMEOUT 3600000
43 #define TQ_LOCAL_WINDOW_SIZE 64 /* sliding packet range of received originator
44 * messages in squence numbers (should be a
45 * multiple of our word size) */
46 #define TQ_GLOBAL_WINDOW_SIZE 5
47 #define TQ_LOCAL_BIDRECT_SEND_MINIMUM 1
48 #define TQ_LOCAL_BIDRECT_RECV_MINIMUM 1
49 #define TQ_TOTAL_BIDRECT_LIMIT 1
51 #define TQ_HOP_PENALTY 10
53 #define NUM_WORDS (TQ_LOCAL_WINDOW_SIZE / WORD_BIT_SIZE)
55 #define PACKBUFF_SIZE 2000
56 #define LOG_BUF_LEN 8192 /* has to be a power of 2 */
57 #define ETH_STR_LEN 20
59 #define MAX_AGGREGATION_BYTES 512 /* should not be bigger than 512 bytes or
61 * forw_packet->direct_link_flags */
62 #define MAX_AGGREGATION_MS 100
64 #define RESET_PROTECTION_MS 30000
65 #define EXPECTED_SEQNO_RANGE 4096
66 /* don't reset again within 30 seconds */
68 #define MODULE_INACTIVE 0
69 #define MODULE_ACTIVE 1
70 #define MODULE_DEACTIVATING 2
77 #define DBG_BATMAN 1 /* all messages related to routing / flooding /
78 * broadcasting / etc */
79 #define DBG_ROUTES 2 /* route or hna added / changed / deleted */
81 #ifdef CONFIG_BATMAN_ADV_DEBUG
84 extern int bat_debug_type(int type);
85 #define bat_dbg(type, fmt, arg...) do { \
86 if (bat_debug_type(type)) \
87 printk(KERN_DEBUG "batman-adv:" fmt, ## arg); \
90 #else /* !CONFIG_BATMAN_ADV_DEBUG */
91 #define bat_dbg(type, fmt, arg...) do { \
100 /* #define VIS_SUBCLUSTERS_DISABLED */
106 #include <linux/mutex.h> /* mutex */
107 #include <linux/module.h> /* needed by all modules */
108 #include <linux/netdevice.h> /* netdevice */
109 #include <linux/if_ether.h> /* ethernet header */
110 #include <linux/poll.h> /* poll_table */
111 #include <linux/kthread.h> /* kernel threads */
112 #include <linux/pkt_sched.h> /* schedule types */
113 #include <linux/workqueue.h> /* workqueue */
114 #include <linux/slab.h>
115 #include <net/sock.h> /* struct sock */
116 #include <linux/jiffies.h>
119 #ifndef REVISION_VERSION
120 #define REVISION_VERSION_STR ""
122 #define REVISION_VERSION_STR " "REVISION_VERSION
125 extern struct list_head if_list;
126 extern struct hlist_head forw_bat_list;
127 extern struct hlist_head forw_bcast_list;
128 extern struct hashtable_t *orig_hash;
130 extern spinlock_t orig_hash_lock;
131 extern spinlock_t forw_bat_list_lock;
132 extern spinlock_t forw_bcast_list_lock;
134 extern atomic_t vis_interval;
135 extern int16_t num_hna;
137 extern struct net_device *soft_device;
139 extern unsigned char broadcastAddr[];
140 extern atomic_t module_state;
141 extern struct workqueue_struct *bat_event_workqueue;
143 void activate_module(void);
144 void deactivate_module(void);
145 void inc_module_count(void);
146 void dec_module_count(void);
147 int addr_to_string(char *buff, uint8_t *addr);
148 int compare_orig(void *data1, void *data2);
149 int choose_orig(void *data, int32_t size);
150 int is_my_mac(uint8_t *addr);
151 int is_bcast(uint8_t *addr);
152 int is_mcast(uint8_t *addr);