1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (C) 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/skbuff.h>
16 #include <linux/types.h>
17
18 int batadv_tt_init(struct batadv_priv *bat_priv);
19 bool batadv_tt_local_add(struct net_device *soft_iface, const u8 *addr,
20 unsigned short vid, int ifindex, u32 mark);
21 u16 batadv_tt_local_remove(struct batadv_priv *bat_priv,
22 const u8 *addr, unsigned short vid,
23 const char *message, bool roaming);
24 int batadv_tt_local_dump(struct sk_buff *msg, struct netlink_callback *cb);
25 int batadv_tt_global_dump(struct sk_buff *msg, struct netlink_callback *cb);
26 void batadv_tt_global_del_orig(struct batadv_priv *bat_priv,
27 struct batadv_orig_node *orig_node,
28 s32 match_vid, const char *message);
29 struct batadv_tt_global_entry *
30 batadv_tt_global_hash_find(struct batadv_priv *bat_priv, const u8 *addr,
31 unsigned short vid);
32 void batadv_tt_global_entry_release(struct kref *ref);
33 int batadv_tt_global_hash_count(struct batadv_priv *bat_priv,
34 const u8 *addr, unsigned short vid);
35 struct batadv_orig_node *batadv_transtable_search(struct batadv_priv *bat_priv,
36 const u8 *src, const u8 *addr,
37 unsigned short vid);
38 void batadv_tt_free(struct batadv_priv *bat_priv);
39 bool batadv_is_my_client(struct batadv_priv *bat_priv, const u8 *addr,
40 unsigned short vid);
41 bool batadv_is_ap_isolated(struct batadv_priv *bat_priv, u8 *src, u8 *dst,
42 unsigned short vid);
43 void batadv_tt_local_commit_changes(struct batadv_priv *bat_priv);
44 bool batadv_tt_global_client_is_roaming(struct batadv_priv *bat_priv,
45 u8 *addr, unsigned short vid);
46 bool batadv_tt_local_client_is_roaming(struct batadv_priv *bat_priv,
47 u8 *addr, unsigned short vid);
48 void batadv_tt_local_resize_to_mtu(struct net_device *soft_iface);
49 bool batadv_tt_add_temporary_global_entry(struct batadv_priv *bat_priv,
50 struct batadv_orig_node *orig_node,
51 const unsigned char *addr,
52 unsigned short vid);
53 bool batadv_tt_global_is_isolated(struct batadv_priv *bat_priv,
54 const u8 *addr, unsigned short vid);
55
56 int batadv_tt_cache_init(void);
57 void batadv_tt_cache_destroy(void);
58
59 /**
60 * batadv_tt_global_entry_put() - decrement the tt_global_entry refcounter and
61 * possibly release it
62 * @tt_global_entry: tt_global_entry to be free'd
63 */
64 static inline void
batadv_tt_global_entry_put(struct batadv_tt_global_entry * tt_global_entry)65 batadv_tt_global_entry_put(struct batadv_tt_global_entry *tt_global_entry)
66 {
67 if (!tt_global_entry)
68 return;
69
70 kref_put(&tt_global_entry->common.refcount,
71 batadv_tt_global_entry_release);
72 }
73
74 #endif /* _NET_BATMAN_ADV_TRANSLATION_TABLE_H_ */
75
