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7#ifndef _NET_BATMAN_ADV_MAIN_H_
8#define _NET_BATMAN_ADV_MAIN_H_
9
10#define BATADV_DRIVER_AUTHOR "Marek Lindner <mareklindner@neomailbox.ch>, " \
11 "Simon Wunderlich <sw@simonwunderlich.de>"
12#define BATADV_DRIVER_DESC "B.A.T.M.A.N. advanced"
13#define BATADV_DRIVER_DEVICE "batman-adv"
14
15#ifndef BATADV_SOURCE_VERSION
16#define BATADV_SOURCE_VERSION "2021.2"
17#endif
18
19
20
21#define BATADV_TQ_MAX_VALUE 255
22#define BATADV_THROUGHPUT_MAX_VALUE 0xFFFFFFFF
23#define BATADV_JITTER 20
24
25
26#define BATADV_TTL 50
27
28
29#define BATADV_BCAST_MAX_AGE 64
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33
34#define BATADV_PURGE_TIMEOUT 200000
35#define BATADV_TT_LOCAL_TIMEOUT 600000
36#define BATADV_TT_CLIENT_ROAM_TIMEOUT 600000
37#define BATADV_TT_CLIENT_TEMP_TIMEOUT 600000
38#define BATADV_TT_WORK_PERIOD 5000
39#define BATADV_ORIG_WORK_PERIOD 1000
40#define BATADV_MCAST_WORK_PERIOD 500
41#define BATADV_DAT_ENTRY_TIMEOUT (5 * 60000)
42
43
44
45#define BATADV_TQ_LOCAL_WINDOW_SIZE 64
46
47#define BATADV_TT_REQUEST_TIMEOUT 3000
48
49#define BATADV_TQ_GLOBAL_WINDOW_SIZE 5
50#define BATADV_TQ_LOCAL_BIDRECT_SEND_MINIMUM 1
51#define BATADV_TQ_LOCAL_BIDRECT_RECV_MINIMUM 1
52#define BATADV_TQ_TOTAL_BIDRECT_LIMIT 1
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54
55#define BATADV_THROUGHPUT_DEFAULT_VALUE 10
56#define BATADV_ELP_PROBES_PER_NODE 2
57#define BATADV_ELP_MIN_PROBE_SIZE 200
58#define BATADV_ELP_PROBE_MAX_TX_DIFF 100
59#define BATADV_ELP_MAX_AGE 64
60#define BATADV_OGM_MAX_ORIGDIFF 5
61#define BATADV_OGM_MAX_AGE 64
62
63
64#define BATADV_TT_OGM_APPEND_MAX 3
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68
69#define BATADV_ROAMING_MAX_TIME 20000
70#define BATADV_ROAMING_MAX_COUNT 5
71
72#define BATADV_NO_FLAGS 0
73
74#define BATADV_NULL_IFINDEX 0
75
76#define BATADV_NO_MARK 0
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81
82#define BATADV_IF_DEFAULT ((struct batadv_hard_iface *)NULL)
83
84#define BATADV_NUM_WORDS BITS_TO_LONGS(BATADV_TQ_LOCAL_WINDOW_SIZE)
85
86#define BATADV_LOG_BUF_LEN 8192
87
88
89#define BATADV_NUM_BCASTS_DEFAULT 1
90#define BATADV_NUM_BCASTS_WIRELESS 3
91
92
93#define BATADV_TP_PACKET_LEN ETH_DATA_LEN
94
95
96#define ARP_REQ_DELAY 250
97
98#define BATADV_DAT_CANDIDATES_NUM 3
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102
103#define BATADV_TQ_SIMILARITY_THRESHOLD 50
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107
108#define BATADV_MAX_AGGREGATION_BYTES 512
109#define BATADV_MAX_AGGREGATION_MS 100
110
111#define BATADV_BLA_PERIOD_LENGTH 10000
112#define BATADV_BLA_BACKBONE_TIMEOUT (BATADV_BLA_PERIOD_LENGTH * 6)
113#define BATADV_BLA_CLAIM_TIMEOUT (BATADV_BLA_PERIOD_LENGTH * 10)
114#define BATADV_BLA_WAIT_PERIODS 3
115#define BATADV_BLA_LOOPDETECT_PERIODS 6
116#define BATADV_BLA_LOOPDETECT_TIMEOUT 3000
117
118#define BATADV_DUPLIST_SIZE 16
119#define BATADV_DUPLIST_TIMEOUT 500
120
121#define BATADV_RESET_PROTECTION_MS 30000
122#define BATADV_EXPECTED_SEQNO_RANGE 65536
123
124#define BATADV_NC_NODE_TIMEOUT 10000
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128
129#define BATADV_TP_MAX_NUM 5
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133
134enum batadv_mesh_state {
135
136 BATADV_MESH_INACTIVE,
137
138
139 BATADV_MESH_ACTIVE,
140
141
142 BATADV_MESH_DEACTIVATING,
143};
144
145#define BATADV_BCAST_QUEUE_LEN 256
146#define BATADV_BATMAN_QUEUE_LEN 256
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150
151enum batadv_uev_action {
152
153 BATADV_UEV_ADD = 0,
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159 BATADV_UEV_DEL,
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164 BATADV_UEV_CHANGE,
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170 BATADV_UEV_LOOPDETECT,
171};
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176enum batadv_uev_type {
177
178 BATADV_UEV_GW = 0,
179
180
181 BATADV_UEV_BLA,
182};
183
184#define BATADV_GW_THRESHOLD 50
185
186
187#define BATADV_FRAG_BUFFER_COUNT 8
188
189#define BATADV_FRAG_MAX_FRAGMENTS 16
190
191#define BATADV_FRAG_MAX_FRAG_SIZE 1280
192
193#define BATADV_FRAG_TIMEOUT 10000
194
195#define BATADV_DAT_CANDIDATE_NOT_FOUND 0
196#define BATADV_DAT_CANDIDATE_ORIG 1
197
198
199#ifdef pr_fmt
200#undef pr_fmt
201#endif
202
203#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
204
205
206
207#include <linux/atomic.h>
208#include <linux/compiler.h>
209#include <linux/etherdevice.h>
210#include <linux/if_vlan.h>
211#include <linux/jiffies.h>
212#include <linux/netdevice.h>
213#include <linux/percpu.h>
214#include <linux/skbuff.h>
215#include <linux/types.h>
216#include <uapi/linux/batadv_packet.h>
217
218#include "types.h"
219#include "main.h"
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226
227static inline int batadv_print_vid(unsigned short vid)
228{
229 if (vid & BATADV_VLAN_HAS_TAG)
230 return (int)(vid & VLAN_VID_MASK);
231 else
232 return -1;
233}
234
235extern struct list_head batadv_hardif_list;
236extern unsigned int batadv_hardif_generation;
237
238extern unsigned char batadv_broadcast_addr[];
239extern struct workqueue_struct *batadv_event_workqueue;
240
241int batadv_mesh_init(struct net_device *soft_iface);
242void batadv_mesh_free(struct net_device *soft_iface);
243bool batadv_is_my_mac(struct batadv_priv *bat_priv, const u8 *addr);
244int batadv_max_header_len(void);
245void batadv_skb_set_priority(struct sk_buff *skb, int offset);
246int batadv_batman_skb_recv(struct sk_buff *skb, struct net_device *dev,
247 struct packet_type *ptype,
248 struct net_device *orig_dev);
249int
250batadv_recv_handler_register(u8 packet_type,
251 int (*recv_handler)(struct sk_buff *,
252 struct batadv_hard_iface *));
253void batadv_recv_handler_unregister(u8 packet_type);
254__be32 batadv_skb_crc32(struct sk_buff *skb, u8 *payload_ptr);
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265static inline bool batadv_compare_eth(const void *data1, const void *data2)
266{
267 return ether_addr_equal_unaligned(data1, data2);
268}
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278static inline bool batadv_has_timed_out(unsigned long timestamp,
279 unsigned int timeout)
280{
281 return time_is_before_jiffies(timestamp + msecs_to_jiffies(timeout));
282}
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290#define batadv_atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)
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299#define batadv_smallest_signed_int(x) (1u << (7u + 8u * (sizeof(x) - 1u)))
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319#define batadv_seq_before(x, y) ({ \
320 typeof(x)_d1 = (x); \
321 typeof(y)_d2 = (y); \
322 typeof(x)_dummy = (_d1 - _d2); \
323 (void)(&_d1 == &_d2); \
324 _dummy > batadv_smallest_signed_int(_dummy); \
325})
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345#define batadv_seq_after(x, y) batadv_seq_before(y, x)
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355static inline void batadv_add_counter(struct batadv_priv *bat_priv, size_t idx,
356 size_t count)
357{
358 this_cpu_add(bat_priv->bat_counters[idx], count);
359}
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366#define batadv_inc_counter(b, i) batadv_add_counter(b, i, 1)
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377#define BATADV_SKB_CB(__skb) ((struct batadv_skb_cb *)&((__skb)->cb[0]))
378
379unsigned short batadv_get_vid(struct sk_buff *skb, size_t header_len);
380bool batadv_vlan_ap_isola_get(struct batadv_priv *bat_priv, unsigned short vid);
381int batadv_throw_uevent(struct batadv_priv *bat_priv, enum batadv_uev_type type,
382 enum batadv_uev_action action, const char *data);
383
384#endif
385