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 | |
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_release(struct kref *ref); |
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 batadv_hardif_neigh_release(struct kref *ref); |
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_release(struct kref *ref); |
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_release(struct kref *ref); |
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_release(struct kref *ref); |
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_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 | */ |
74 | static inline u32 batadv_choose_orig(const void *data, u32 size) |
75 | { |
76 | u32 hash = 0; |
77 | |
78 | hash = jhash(key: data, ETH_ALEN, initval: 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 | /** |
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 | */ |
90 | static inline void |
91 | batadv_orig_node_vlan_put(struct batadv_orig_node_vlan *orig_vlan) |
92 | { |
93 | if (!orig_vlan) |
94 | return; |
95 | |
96 | kref_put(kref: &orig_vlan->refcount, release: 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 | */ |
104 | static inline void |
105 | batadv_neigh_ifinfo_put(struct batadv_neigh_ifinfo *neigh_ifinfo) |
106 | { |
107 | if (!neigh_ifinfo) |
108 | return; |
109 | |
110 | kref_put(kref: &neigh_ifinfo->refcount, release: 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 | */ |
118 | static inline void |
119 | batadv_hardif_neigh_put(struct batadv_hardif_neigh_node *hardif_neigh) |
120 | { |
121 | if (!hardif_neigh) |
122 | return; |
123 | |
124 | kref_put(kref: &hardif_neigh->refcount, release: 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 | */ |
132 | static inline void batadv_neigh_node_put(struct batadv_neigh_node *neigh_node) |
133 | { |
134 | if (!neigh_node) |
135 | return; |
136 | |
137 | kref_put(kref: &neigh_node->refcount, release: 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 | */ |
145 | static inline void |
146 | batadv_orig_ifinfo_put(struct batadv_orig_ifinfo *orig_ifinfo) |
147 | { |
148 | if (!orig_ifinfo) |
149 | return; |
150 | |
151 | kref_put(kref: &orig_ifinfo->refcount, release: 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 | */ |
159 | static inline void batadv_orig_node_put(struct batadv_orig_node *orig_node) |
160 | { |
161 | if (!orig_node) |
162 | return; |
163 | |
164 | kref_put(kref: &orig_node->refcount, release: batadv_orig_node_release); |
165 | } |
166 | |
167 | #endif /* _NET_BATMAN_ADV_ORIGINATOR_H_ */ |
168 | |