net/batman-adv/translation-table.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 /* Copyright (C) B.A.T.M.A.N. contributors:
0003  *
0004  * Marek Lindner, Simon Wunderlich, Antonio Quartulli
0005  */
0006
0007 #ifndef _NET_BATMAN_ADV_TRANSLATION_TABLE_H_
0008 #define _NET_BATMAN_ADV_TRANSLATION_TABLE_H_
0009
0010 #include "main.h"
0011
0012 #include <linux/kref.h>
0013 #include <linux/netdevice.h>
0014 #include <linux/netlink.h>
0015 #include <linux/skbuff.h>
0016 #include <linux/types.h>
0017
0018 int batadv_tt_init(struct batadv_priv *bat_priv);
0019 bool batadv_tt_local_add(struct net_device *soft_iface, const u8 *addr,
0020              unsigned short vid, int ifindex, u32 mark);
0021 u16 batadv_tt_local_remove(struct batadv_priv *bat_priv,
0022                const u8 *addr, unsigned short vid,
0023                const char *message, bool roaming);
0024 int batadv_tt_local_dump(struct sk_buff *msg, struct netlink_callback *cb);
0025 int batadv_tt_global_dump(struct sk_buff *msg, struct netlink_callback *cb);
0026 void batadv_tt_global_del_orig(struct batadv_priv *bat_priv,
0027                    struct batadv_orig_node *orig_node,
0028                    s32 match_vid, const char *message);
0029 struct batadv_tt_global_entry *
0030 batadv_tt_global_hash_find(struct batadv_priv *bat_priv, const u8 *addr,
0031                unsigned short vid);
0032 void batadv_tt_global_entry_release(struct kref *ref);
0033 int batadv_tt_global_hash_count(struct batadv_priv *bat_priv,
0034                 const u8 *addr, unsigned short vid);
0035 struct batadv_orig_node *batadv_transtable_search(struct batadv_priv *bat_priv,
0036                           const u8 *src, const u8 *addr,
0037                           unsigned short vid);
0038 void batadv_tt_free(struct batadv_priv *bat_priv);
0039 bool batadv_is_my_client(struct batadv_priv *bat_priv, const u8 *addr,
0040              unsigned short vid);
0041 bool batadv_is_ap_isolated(struct batadv_priv *bat_priv, u8 *src, u8 *dst,
0042                unsigned short vid);
0043 void batadv_tt_local_commit_changes(struct batadv_priv *bat_priv);
0044 bool batadv_tt_global_client_is_roaming(struct batadv_priv *bat_priv,
0045                     u8 *addr, unsigned short vid);
0046 bool batadv_tt_local_client_is_roaming(struct batadv_priv *bat_priv,
0047                        u8 *addr, unsigned short vid);
0048 void batadv_tt_local_resize_to_mtu(struct net_device *soft_iface);
0049 bool batadv_tt_add_temporary_global_entry(struct batadv_priv *bat_priv,
0050                       struct batadv_orig_node *orig_node,
0051                       const unsigned char *addr,
0052                       unsigned short vid);
0053 bool batadv_tt_global_is_isolated(struct batadv_priv *bat_priv,
0054                   const u8 *addr, unsigned short vid);
0055
0056 int batadv_tt_cache_init(void);
0057 void batadv_tt_cache_destroy(void);
0058
0059 /**
0060  * batadv_tt_global_entry_put() - decrement the tt_global_entry refcounter and
0061  *  possibly release it
0062  * @tt_global_entry: tt_global_entry to be free'd
0063  */
0064 static inline void
0065 batadv_tt_global_entry_put(struct batadv_tt_global_entry *tt_global_entry)
0066 {
0067     if (!tt_global_entry)
0068         return;
0069
0070     kref_put(&tt_global_entry->common.refcount,
0071          batadv_tt_global_entry_release);
0072 }
0073
0074 #endif /* _NET_BATMAN_ADV_TRANSLATION_TABLE_H_ */