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20#ifndef _NET_BATMAN_ADV_MAIN_H_
21#define _NET_BATMAN_ADV_MAIN_H_
22
23#define BATADV_DRIVER_AUTHOR "Marek Lindner <lindner_marek@yahoo.de>, " \
24 "Simon Wunderlich <siwu@hrz.tu-chemnitz.de>"
25#define BATADV_DRIVER_DESC "B.A.T.M.A.N. advanced"
26#define BATADV_DRIVER_DEVICE "batman-adv"
27
28#ifndef BATADV_SOURCE_VERSION
29#define BATADV_SOURCE_VERSION "2013.2.0"
30#endif
31
32
33
34#define BATADV_TQ_MAX_VALUE 255
35#define BATADV_JITTER 20
36
37
38#define BATADV_TTL 50
39
40
41
42
43#define BATADV_PURGE_TIMEOUT 200000
44#define BATADV_TT_LOCAL_TIMEOUT 600000
45#define BATADV_TT_CLIENT_ROAM_TIMEOUT 600000
46#define BATADV_TT_CLIENT_TEMP_TIMEOUT 600000
47#define BATADV_TT_WORK_PERIOD 5000
48#define BATADV_ORIG_WORK_PERIOD 1000
49#define BATADV_DAT_ENTRY_TIMEOUT (5*60000)
50
51
52
53#define BATADV_TQ_LOCAL_WINDOW_SIZE 64
54
55#define BATADV_TT_REQUEST_TIMEOUT 3000
56
57#define BATADV_TQ_GLOBAL_WINDOW_SIZE 5
58#define BATADV_TQ_LOCAL_BIDRECT_SEND_MINIMUM 1
59#define BATADV_TQ_LOCAL_BIDRECT_RECV_MINIMUM 1
60#define BATADV_TQ_TOTAL_BIDRECT_LIMIT 1
61
62
63#define BATADV_TT_OGM_APPEND_MAX 3
64
65
66
67
68#define BATADV_ROAMING_MAX_TIME 20000
69#define BATADV_ROAMING_MAX_COUNT 5
70
71#define BATADV_NO_FLAGS 0
72
73#define BATADV_NULL_IFINDEX 0
74
75#define BATADV_NUM_WORDS BITS_TO_LONGS(BATADV_TQ_LOCAL_WINDOW_SIZE)
76
77#define BATADV_LOG_BUF_LEN 8192
78
79
80#define ARP_REQ_DELAY 250
81
82#define BATADV_DAT_CANDIDATES_NUM 3
83
84#define BATADV_VIS_INTERVAL 5000
85
86
87
88
89#define BATADV_BONDING_TQ_THRESHOLD 50
90
91
92
93
94#define BATADV_MAX_AGGREGATION_BYTES 512
95#define BATADV_MAX_AGGREGATION_MS 100
96
97#define BATADV_BLA_PERIOD_LENGTH 10000
98#define BATADV_BLA_BACKBONE_TIMEOUT (BATADV_BLA_PERIOD_LENGTH * 3)
99#define BATADV_BLA_CLAIM_TIMEOUT (BATADV_BLA_PERIOD_LENGTH * 10)
100#define BATADV_BLA_WAIT_PERIODS 3
101
102#define BATADV_DUPLIST_SIZE 16
103#define BATADV_DUPLIST_TIMEOUT 500
104
105#define BATADV_RESET_PROTECTION_MS 30000
106#define BATADV_EXPECTED_SEQNO_RANGE 65536
107
108#define BATADV_NC_NODE_TIMEOUT 10000
109
110enum batadv_mesh_state {
111 BATADV_MESH_INACTIVE,
112 BATADV_MESH_ACTIVE,
113 BATADV_MESH_DEACTIVATING,
114};
115
116#define BATADV_BCAST_QUEUE_LEN 256
117#define BATADV_BATMAN_QUEUE_LEN 256
118
119enum batadv_uev_action {
120 BATADV_UEV_ADD = 0,
121 BATADV_UEV_DEL,
122 BATADV_UEV_CHANGE,
123};
124
125enum batadv_uev_type {
126 BATADV_UEV_GW = 0,
127};
128
129#define BATADV_GW_THRESHOLD 50
130
131#define BATADV_DAT_CANDIDATE_NOT_FOUND 0
132#define BATADV_DAT_CANDIDATE_ORIG 1
133
134
135#ifdef pr_fmt
136#undef pr_fmt
137#endif
138
139#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
140
141
142
143#include <linux/mutex.h>
144#include <linux/module.h>
145#include <linux/netdevice.h>
146#include <linux/etherdevice.h>
147#include <linux/if_ether.h>
148#include <linux/poll.h>
149#include <linux/kthread.h>
150#include <linux/pkt_sched.h>
151#include <linux/workqueue.h>
152#include <linux/percpu.h>
153#include <linux/slab.h>
154#include <net/sock.h>
155#include <net/rtnetlink.h>
156#include <linux/jiffies.h>
157#include <linux/seq_file.h>
158#include "types.h"
159
160extern char batadv_routing_algo[];
161extern struct list_head batadv_hardif_list;
162
163extern unsigned char batadv_broadcast_addr[];
164extern struct workqueue_struct *batadv_event_workqueue;
165
166int batadv_mesh_init(struct net_device *soft_iface);
167void batadv_mesh_free(struct net_device *soft_iface);
168int batadv_is_my_mac(struct batadv_priv *bat_priv, const uint8_t *addr);
169struct batadv_hard_iface *
170batadv_seq_print_text_primary_if_get(struct seq_file *seq);
171int batadv_batman_skb_recv(struct sk_buff *skb, struct net_device *dev,
172 struct packet_type *ptype,
173 struct net_device *orig_dev);
174int
175batadv_recv_handler_register(uint8_t packet_type,
176 int (*recv_handler)(struct sk_buff *,
177 struct batadv_hard_iface *));
178void batadv_recv_handler_unregister(uint8_t packet_type);
179int batadv_algo_register(struct batadv_algo_ops *bat_algo_ops);
180int batadv_algo_select(struct batadv_priv *bat_priv, char *name);
181int batadv_algo_seq_print_text(struct seq_file *seq, void *offset);
182__be32 batadv_skb_crc32(struct sk_buff *skb, u8 *payload_ptr);
183
184
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191
192
193
194enum batadv_dbg_level {
195 BATADV_DBG_BATMAN = BIT(0),
196 BATADV_DBG_ROUTES = BIT(1),
197 BATADV_DBG_TT = BIT(2),
198 BATADV_DBG_BLA = BIT(3),
199 BATADV_DBG_DAT = BIT(4),
200 BATADV_DBG_NC = BIT(5),
201 BATADV_DBG_ALL = 63,
202};
203
204#ifdef CONFIG_BATMAN_ADV_DEBUG
205int batadv_debug_log(struct batadv_priv *bat_priv, const char *fmt, ...)
206__printf(2, 3);
207
208#define batadv_dbg(type, bat_priv, fmt, arg...) \
209 do { \
210 if (atomic_read(&bat_priv->log_level) & type) \
211 batadv_debug_log(bat_priv, fmt, ## arg);\
212 } \
213 while (0)
214#else
215__printf(3, 4)
216static inline void batadv_dbg(int type __always_unused,
217 struct batadv_priv *bat_priv __always_unused,
218 const char *fmt __always_unused, ...)
219{
220}
221#endif
222
223#define batadv_info(net_dev, fmt, arg...) \
224 do { \
225 struct net_device *_netdev = (net_dev); \
226 struct batadv_priv *_batpriv = netdev_priv(_netdev); \
227 batadv_dbg(BATADV_DBG_ALL, _batpriv, fmt, ## arg); \
228 pr_info("%s: " fmt, _netdev->name, ## arg); \
229 } while (0)
230#define batadv_err(net_dev, fmt, arg...) \
231 do { \
232 struct net_device *_netdev = (net_dev); \
233 struct batadv_priv *_batpriv = netdev_priv(_netdev); \
234 batadv_dbg(BATADV_DBG_ALL, _batpriv, fmt, ## arg); \
235 pr_err("%s: " fmt, _netdev->name, ## arg); \
236 } while (0)
237
238
239
240
241
242static inline int batadv_compare_eth(const void *data1, const void *data2)
243{
244 return (memcmp(data1, data2, ETH_ALEN) == 0 ? 1 : 0);
245}
246
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251
252
253
254static inline bool batadv_has_timed_out(unsigned long timestamp,
255 unsigned int timeout)
256{
257 return time_is_before_jiffies(timestamp + msecs_to_jiffies(timeout));
258}
259
260#define batadv_atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
261
262
263#define batadv_smallest_signed_int(x) (1u << (7u + 8u * (sizeof(x) - 1u)))
264
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274
275#define batadv_seq_before(x, y) ({typeof(x) _d1 = (x); \
276 typeof(y) _d2 = (y); \
277 typeof(x) _dummy = (_d1 - _d2); \
278 (void) (&_d1 == &_d2); \
279 _dummy > batadv_smallest_signed_int(_dummy); })
280#define batadv_seq_after(x, y) batadv_seq_before(y, x)
281
282
283static inline void batadv_add_counter(struct batadv_priv *bat_priv, size_t idx,
284 size_t count)
285{
286 this_cpu_add(bat_priv->bat_counters[idx], count);
287}
288
289#define batadv_inc_counter(b, i) batadv_add_counter(b, i, 1)
290
291
292static inline uint64_t batadv_sum_counter(struct batadv_priv *bat_priv,
293 size_t idx)
294{
295 uint64_t *counters, sum = 0;
296 int cpu;
297
298 for_each_possible_cpu(cpu) {
299 counters = per_cpu_ptr(bat_priv->bat_counters, cpu);
300 sum += counters[idx];
301 }
302
303 return sum;
304}
305
306
307
308
309
310#define BATADV_SKB_CB(__skb) ((struct batadv_skb_cb *)&((__skb)->cb[0]))
311
312#endif
313