originator.h (4970B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2/* Copyright (C) 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/kref.h> 16#include <linux/netlink.h> 17#include <linux/skbuff.h> 18#include <linux/types.h> 19 20bool batadv_compare_orig(const struct hlist_node *node, const void *data2); 21int batadv_originator_init(struct batadv_priv *bat_priv); 22void batadv_originator_free(struct batadv_priv *bat_priv); 23void batadv_purge_orig_ref(struct batadv_priv *bat_priv); 24void batadv_orig_node_release(struct kref *ref); 25struct batadv_orig_node *batadv_orig_node_new(struct batadv_priv *bat_priv, 26 const u8 *addr); 27struct batadv_hardif_neigh_node * 28batadv_hardif_neigh_get(const struct batadv_hard_iface *hard_iface, 29 const u8 *neigh_addr); 30void batadv_hardif_neigh_release(struct kref *ref); 31struct batadv_neigh_node * 32batadv_neigh_node_get_or_create(struct batadv_orig_node *orig_node, 33 struct batadv_hard_iface *hard_iface, 34 const u8 *neigh_addr); 35void batadv_neigh_node_release(struct kref *ref); 36struct batadv_neigh_node * 37batadv_orig_router_get(struct batadv_orig_node *orig_node, 38 const struct batadv_hard_iface *if_outgoing); 39struct batadv_neigh_ifinfo * 40batadv_neigh_ifinfo_new(struct batadv_neigh_node *neigh, 41 struct batadv_hard_iface *if_outgoing); 42struct batadv_neigh_ifinfo * 43batadv_neigh_ifinfo_get(struct batadv_neigh_node *neigh, 44 struct batadv_hard_iface *if_outgoing); 45void batadv_neigh_ifinfo_release(struct kref *ref); 46 47int batadv_hardif_neigh_dump(struct sk_buff *msg, struct netlink_callback *cb); 48 49struct batadv_orig_ifinfo * 50batadv_orig_ifinfo_get(struct batadv_orig_node *orig_node, 51 struct batadv_hard_iface *if_outgoing); 52struct batadv_orig_ifinfo * 53batadv_orig_ifinfo_new(struct batadv_orig_node *orig_node, 54 struct batadv_hard_iface *if_outgoing); 55void batadv_orig_ifinfo_release(struct kref *ref); 56 57int batadv_orig_dump(struct sk_buff *msg, struct netlink_callback *cb); 58struct batadv_orig_node_vlan * 59batadv_orig_node_vlan_new(struct batadv_orig_node *orig_node, 60 unsigned short vid); 61struct batadv_orig_node_vlan * 62batadv_orig_node_vlan_get(struct batadv_orig_node *orig_node, 63 unsigned short vid); 64void batadv_orig_node_vlan_release(struct kref *ref); 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 */ 74static 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 82struct batadv_orig_node * 83batadv_orig_hash_find(struct batadv_priv *bat_priv, const void *data); 84 85/** 86 * batadv_orig_node_vlan_put() - decrement the refcounter and possibly release 87 * the originator-vlan object 88 * @orig_vlan: the originator-vlan object to release 89 */ 90static inline void 91batadv_orig_node_vlan_put(struct batadv_orig_node_vlan *orig_vlan) 92{ 93 if (!orig_vlan) 94 return; 95 96 kref_put(&orig_vlan->refcount, batadv_orig_node_vlan_release); 97} 98 99/** 100 * batadv_neigh_ifinfo_put() - decrement the refcounter and possibly release 101 * the neigh_ifinfo 102 * @neigh_ifinfo: the neigh_ifinfo object to release 103 */ 104static inline void 105batadv_neigh_ifinfo_put(struct batadv_neigh_ifinfo *neigh_ifinfo) 106{ 107 if (!neigh_ifinfo) 108 return; 109 110 kref_put(&neigh_ifinfo->refcount, batadv_neigh_ifinfo_release); 111} 112 113/** 114 * batadv_hardif_neigh_put() - decrement the hardif neighbors refcounter 115 * and possibly release it 116 * @hardif_neigh: hardif neigh neighbor to free 117 */ 118static inline void 119batadv_hardif_neigh_put(struct batadv_hardif_neigh_node *hardif_neigh) 120{ 121 if (!hardif_neigh) 122 return; 123 124 kref_put(&hardif_neigh->refcount, batadv_hardif_neigh_release); 125} 126 127/** 128 * batadv_neigh_node_put() - decrement the neighbors refcounter and possibly 129 * release it 130 * @neigh_node: neigh neighbor to free 131 */ 132static inline void batadv_neigh_node_put(struct batadv_neigh_node *neigh_node) 133{ 134 if (!neigh_node) 135 return; 136 137 kref_put(&neigh_node->refcount, batadv_neigh_node_release); 138} 139 140/** 141 * batadv_orig_ifinfo_put() - decrement the refcounter and possibly release 142 * the orig_ifinfo 143 * @orig_ifinfo: the orig_ifinfo object to release 144 */ 145static inline void 146batadv_orig_ifinfo_put(struct batadv_orig_ifinfo *orig_ifinfo) 147{ 148 if (!orig_ifinfo) 149 return; 150 151 kref_put(&orig_ifinfo->refcount, batadv_orig_ifinfo_release); 152} 153 154/** 155 * batadv_orig_node_put() - decrement the orig node refcounter and possibly 156 * release it 157 * @orig_node: the orig node to free 158 */ 159static inline void batadv_orig_node_put(struct batadv_orig_node *orig_node) 160{ 161 if (!orig_node) 162 return; 163 164 kref_put(&orig_node->refcount, batadv_orig_node_release); 165} 166 167#endif /* _NET_BATMAN_ADV_ORIGINATOR_H_ */