net/batman-adv/originator.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
   5  */
   6
   7 #ifndef _NET_BATMAN_ADV_ORIGINATOR_H_
   8 #define _NET_BATMAN_ADV_ORIGINATOR_H_
   9
  10 #include "main.h"
  11
  12 #include <linux/compiler.h>
  13 #include <linux/if_ether.h>
  14 #include <linux/jhash.h>
  15 #include <linux/netlink.h>
  16 #include <linux/skbuff.h>
  17 #include <linux/types.h>
  18
  19 bool batadv_compare_orig(const struct hlist_node *node, const void *data2);
  20 int batadv_originator_init(struct batadv_priv *bat_priv);
  21 void batadv_originator_free(struct batadv_priv *bat_priv);
  22 void batadv_purge_orig_ref(struct batadv_priv *bat_priv);
  23 void batadv_orig_node_put(struct batadv_orig_node *orig_node);
  24 struct batadv_orig_node *batadv_orig_node_new(struct batadv_priv *bat_priv,
  25                                               const u8 *addr);
  26 struct batadv_hardif_neigh_node *
  27 batadv_hardif_neigh_get(const struct batadv_hard_iface *hard_iface,
  28                         const u8 *neigh_addr);
  29 void
  30 batadv_hardif_neigh_put(struct batadv_hardif_neigh_node *hardif_neigh);
  31 struct batadv_neigh_node *
  32 batadv_neigh_node_get_or_create(struct batadv_orig_node *orig_node,
  33                                 struct batadv_hard_iface *hard_iface,
  34                                 const u8 *neigh_addr);
  35 void batadv_neigh_node_put(struct batadv_neigh_node *neigh_node);
  36 struct batadv_neigh_node *
  37 batadv_orig_router_get(struct batadv_orig_node *orig_node,
  38                        const struct batadv_hard_iface *if_outgoing);
  39 struct batadv_neigh_ifinfo *
  40 batadv_neigh_ifinfo_new(struct batadv_neigh_node *neigh,
  41                         struct batadv_hard_iface *if_outgoing);
  42 struct batadv_neigh_ifinfo *
  43 batadv_neigh_ifinfo_get(struct batadv_neigh_node *neigh,
  44                         struct batadv_hard_iface *if_outgoing);
  45 void batadv_neigh_ifinfo_put(struct batadv_neigh_ifinfo *neigh_ifinfo);
  46
  47 int batadv_hardif_neigh_dump(struct sk_buff *msg, struct netlink_callback *cb);
  48
  49 struct batadv_orig_ifinfo *
  50 batadv_orig_ifinfo_get(struct batadv_orig_node *orig_node,
  51                        struct batadv_hard_iface *if_outgoing);
  52 struct batadv_orig_ifinfo *
  53 batadv_orig_ifinfo_new(struct batadv_orig_node *orig_node,
  54                        struct batadv_hard_iface *if_outgoing);
  55 void batadv_orig_ifinfo_put(struct batadv_orig_ifinfo *orig_ifinfo);
  56
  57 int batadv_orig_dump(struct sk_buff *msg, struct netlink_callback *cb);
  58 struct batadv_orig_node_vlan *
  59 batadv_orig_node_vlan_new(struct batadv_orig_node *orig_node,
  60                           unsigned short vid);
  61 struct batadv_orig_node_vlan *
  62 batadv_orig_node_vlan_get(struct batadv_orig_node *orig_node,
  63                           unsigned short vid);
  64 void batadv_orig_node_vlan_put(struct batadv_orig_node_vlan *orig_vlan);
  65
  66 /**
  67  * batadv_choose_orig() - Return the index of the orig entry in the hash table
  68  * @data: mac address of the originator node
  69  * @size: the size of the hash table
  70  *
  71  * Return: the hash index where the object represented by @data should be
  72  * stored at.
  73  */
  74 static inline u32 batadv_choose_orig(const void *data, u32 size)
  75 {
  76         u32 hash = 0;
  77
  78         hash = jhash(data, ETH_ALEN, hash);
  79         return hash % size;
  80 }
  81
  82 struct batadv_orig_node *
  83 batadv_orig_hash_find(struct batadv_priv *bat_priv, const void *data);
  84
  85 #endif /* _NET_BATMAN_ADV_ORIGINATOR_H_ */