1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (C) 2007-2020 B.A.T.M.A.N. contributors:
3 *
4 * Marek Lindner, Simon Wunderlich, Antonio Quartulli
5 */
6
7 #ifndef _NET_BATMAN_ADV_TRANSLATION_TABLE_H_
8 #define _NET_BATMAN_ADV_TRANSLATION_TABLE_H_
9
10 #include "main.h"
11
12 #include <linux/kref.h>
13 #include <linux/netdevice.h>
14 #include <linux/netlink.h>
15 #include <linux/seq_file.h>
16 #include <linux/skbuff.h>
17 #include <linux/types.h>
18
19 int batadv_tt_init(struct batadv_priv *bat_priv);
20 bool batadv_tt_local_add(struct net_device *soft_iface, const u8 *addr,
21 unsigned short vid, int ifindex, u32 mark);
22 u16 batadv_tt_local_remove(struct batadv_priv *bat_priv,
23 const u8 *addr, unsigned short vid,
24 const char *message, bool roaming);
25 int batadv_tt_local_seq_print_text(struct seq_file *seq, void *offset);
26 int batadv_tt_global_seq_print_text(struct seq_file *seq, void *offset);
27 int batadv_tt_local_dump(struct sk_buff *msg, struct netlink_callback *cb);
28 int batadv_tt_global_dump(struct sk_buff *msg, struct netlink_callback *cb);
29 void batadv_tt_global_del_orig(struct batadv_priv *bat_priv,
30 struct batadv_orig_node *orig_node,
31 s32 match_vid, const char *message);
32 struct batadv_tt_global_entry *
33 batadv_tt_global_hash_find(struct batadv_priv *bat_priv, const u8 *addr,
34 unsigned short vid);
35 void batadv_tt_global_entry_release(struct kref *ref);
36 int batadv_tt_global_hash_count(struct batadv_priv *bat_priv,
37 const u8 *addr, unsigned short vid);
38 struct batadv_orig_node *batadv_transtable_search(struct batadv_priv *bat_priv,
39 const u8 *src, const u8 *addr,
40 unsigned short vid);
41 void batadv_tt_free(struct batadv_priv *bat_priv);
42 bool batadv_is_my_client(struct batadv_priv *bat_priv, const u8 *addr,
43 unsigned short vid);
44 bool batadv_is_ap_isolated(struct batadv_priv *bat_priv, u8 *src, u8 *dst,
45 unsigned short vid);
46 void batadv_tt_local_commit_changes(struct batadv_priv *bat_priv);
47 bool batadv_tt_global_client_is_roaming(struct batadv_priv *bat_priv,
48 u8 *addr, unsigned short vid);
49 bool batadv_tt_local_client_is_roaming(struct batadv_priv *bat_priv,
50 u8 *addr, unsigned short vid);
51 void batadv_tt_local_resize_to_mtu(struct net_device *soft_iface);
52 bool batadv_tt_add_temporary_global_entry(struct batadv_priv *bat_priv,
53 struct batadv_orig_node *orig_node,
54 const unsigned char *addr,
55 unsigned short vid);
56 bool batadv_tt_global_is_isolated(struct batadv_priv *bat_priv,
57 const u8 *addr, unsigned short vid);
58
59 int batadv_tt_cache_init(void);
60 void batadv_tt_cache_destroy(void);
61
62 /**
63 * batadv_tt_global_entry_put() - decrement the tt_global_entry refcounter and
64 * possibly release it
65 * @tt_global_entry: tt_global_entry to be free'd
66 */
67 static inline void
batadv_tt_global_entry_put(struct batadv_tt_global_entry * tt_global_entry)68 batadv_tt_global_entry_put(struct batadv_tt_global_entry *tt_global_entry)
69 {
70 if (!tt_global_entry)
71 return;
72
73 kref_put(&tt_global_entry->common.refcount,
74 batadv_tt_global_entry_release);
75 }
76
77 #endif /* _NET_BATMAN_ADV_TRANSLATION_TABLE_H_ */
78