net/batman-adv/translation-table.h

   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
  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_ */