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/seq_file.h>
  17 #include <linux/skbuff.h>
  18 #include <linux/types.h>
  19
  20 bool batadv_compare_orig(const struct hlist_node *node, const void *data2);
  21 int batadv_originator_init(struct batadv_priv *bat_priv);
  22 void batadv_originator_free(struct batadv_priv *bat_priv);
  23 void batadv_purge_orig_ref(struct batadv_priv *bat_priv);
  24 void batadv_orig_node_put(struct batadv_orig_node *orig_node);
  25 struct batadv_orig_node *batadv_orig_node_new(struct batadv_priv *bat_priv,
  26                                               const u8 *addr);
  27 struct batadv_hardif_neigh_node *
  28 batadv_hardif_neigh_get(const struct batadv_hard_iface *hard_iface,
  29                         const u8 *neigh_addr);
  30 void
  31 batadv_hardif_neigh_put(struct batadv_hardif_neigh_node *hardif_neigh);
  32 struct batadv_neigh_node *
  33 batadv_neigh_node_get_or_create(struct batadv_orig_node *orig_node,
  34                                 struct batadv_hard_iface *hard_iface,
  35                                 const u8 *neigh_addr);
  36 void batadv_neigh_node_put(struct batadv_neigh_node *neigh_node);
  37 struct batadv_neigh_node *
  38 batadv_orig_router_get(struct batadv_orig_node *orig_node,
  39                        const struct batadv_hard_iface *if_outgoing);
  40 struct batadv_neigh_ifinfo *
  41 batadv_neigh_ifinfo_new(struct batadv_neigh_node *neigh,
  42                         struct batadv_hard_iface *if_outgoing);
  43 struct batadv_neigh_ifinfo *
  44 batadv_neigh_ifinfo_get(struct batadv_neigh_node *neigh,
  45                         struct batadv_hard_iface *if_outgoing);
  46 void batadv_neigh_ifinfo_put(struct batadv_neigh_ifinfo *neigh_ifinfo);
  47
  48 int batadv_hardif_neigh_dump(struct sk_buff *msg, struct netlink_callback *cb);
  49 int batadv_hardif_neigh_seq_print_text(struct seq_file *seq, void *offset);
  50
  51 struct batadv_orig_ifinfo *
  52 batadv_orig_ifinfo_get(struct batadv_orig_node *orig_node,
  53                        struct batadv_hard_iface *if_outgoing);
  54 struct batadv_orig_ifinfo *
  55 batadv_orig_ifinfo_new(struct batadv_orig_node *orig_node,
  56                        struct batadv_hard_iface *if_outgoing);
  57 void batadv_orig_ifinfo_put(struct batadv_orig_ifinfo *orig_ifinfo);
  58
  59 int batadv_orig_seq_print_text(struct seq_file *seq, void *offset);
  60 int batadv_orig_dump(struct sk_buff *msg, struct netlink_callback *cb);
  61 int batadv_orig_hardif_seq_print_text(struct seq_file *seq, void *offset);
  62 struct batadv_orig_node_vlan *
  63 batadv_orig_node_vlan_new(struct batadv_orig_node *orig_node,
  64                           unsigned short vid);
  65 struct batadv_orig_node_vlan *
  66 batadv_orig_node_vlan_get(struct batadv_orig_node *orig_node,
  67                           unsigned short vid);
  68 void batadv_orig_node_vlan_put(struct batadv_orig_node_vlan *orig_vlan);
  69
  70 /**
  71  * batadv_choose_orig() - Return the index of the orig entry in the hash table
  72  * @data: mac address of the originator node
  73  * @size: the size of the hash table
  74  *
  75  * Return: the hash index where the object represented by @data should be
  76  * stored at.
  77  */
  78 static inline u32 batadv_choose_orig(const void *data, u32 size)
  79 {
  80         u32 hash = 0;
  81
  82         hash = jhash(data, ETH_ALEN, hash);
  83         return hash % size;
  84 }
  85
  86 struct batadv_orig_node *
  87 batadv_orig_hash_find(struct batadv_priv *bat_priv, const void *data);
  88
  89 #endif /* _NET_BATMAN_ADV_ORIGINATOR_H_ */