1/* Copyright (C) 2014 B.A.T.M.A.N. contributors:
2 *
3 * Linus Lüssing
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of version 2 of the GNU General Public
7 * License as published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, see <http://www.gnu.org/licenses/>.
16 */
17
18#ifndef _NET_BATMAN_ADV_MULTICAST_H_
19#define _NET_BATMAN_ADV_MULTICAST_H_
20
21/**
22 * batadv_forw_mode - the way a packet should be forwarded as
23 * @BATADV_FORW_ALL: forward the packet to all nodes (currently via classic
24 *  flooding)
25 * @BATADV_FORW_SINGLE: forward the packet to a single node (currently via the
26 *  BATMAN unicast routing protocol)
27 * @BATADV_FORW_NONE: don't forward, drop it
28 */
29enum batadv_forw_mode {
30	BATADV_FORW_ALL,
31	BATADV_FORW_SINGLE,
32	BATADV_FORW_NONE,
33};
34
35#ifdef CONFIG_BATMAN_ADV_MCAST
36
37void batadv_mcast_mla_update(struct batadv_priv *bat_priv);
38
39enum batadv_forw_mode
40batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb,
41		       struct batadv_orig_node **mcast_single_orig);
42
43void batadv_mcast_init(struct batadv_priv *bat_priv);
44
45void batadv_mcast_free(struct batadv_priv *bat_priv);
46
47void batadv_mcast_purge_orig(struct batadv_orig_node *orig_node);
48
49#else
50
51static inline void batadv_mcast_mla_update(struct batadv_priv *bat_priv)
52{
53}
54
55static inline enum batadv_forw_mode
56batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb,
57		       struct batadv_orig_node **mcast_single_orig)
58{
59	return BATADV_FORW_ALL;
60}
61
62static inline int batadv_mcast_init(struct batadv_priv *bat_priv)
63{
64	return 0;
65}
66
67static inline void batadv_mcast_free(struct batadv_priv *bat_priv)
68{
69}
70
71static inline void batadv_mcast_purge_orig(struct batadv_orig_node *orig_node)
72{
73}
74
75#endif /* CONFIG_BATMAN_ADV_MCAST */
76
77#endif /* _NET_BATMAN_ADV_MULTICAST_H_ */
78