net/batman-adv/multicast.h

   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  */
  29 enum batadv_forw_mode {
  30         BATADV_FORW_ALL,
  31         BATADV_FORW_SINGLE,
  32         BATADV_FORW_NONE,
  33 };
  34
  35 #ifdef CONFIG_BATMAN_ADV_MCAST
  36
  37 void batadv_mcast_mla_update(struct batadv_priv *bat_priv);
  38
  39 enum batadv_forw_mode
  40 batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb,
  41                        struct batadv_orig_node **mcast_single_orig);
  42
  43 void batadv_mcast_init(struct batadv_priv *bat_priv);
  44
  45 void batadv_mcast_free(struct batadv_priv *bat_priv);
  46
  47 void batadv_mcast_purge_orig(struct batadv_orig_node *orig_node);
  48
  49 #else
  50
  51 static inline void batadv_mcast_mla_update(struct batadv_priv *bat_priv)
  52 {
  53         return;
  54 }
  55
  56 static inline enum batadv_forw_mode
  57 batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb,
  58                        struct batadv_orig_node **mcast_single_orig)
  59 {
  60         return BATADV_FORW_ALL;
  61 }
  62
  63 static inline int batadv_mcast_init(struct batadv_priv *bat_priv)
  64 {
  65         return 0;
  66 }
  67
  68 static inline void batadv_mcast_free(struct batadv_priv *bat_priv)
  69 {
  70         return;
  71 }
  72
  73 static inline void batadv_mcast_purge_orig(struct batadv_orig_node *orig_node)
  74 {
  75         return;
  76 }
  77
  78 #endif /* CONFIG_BATMAN_ADV_MCAST */
  79
  80 #endif /* _NET_BATMAN_ADV_MULTICAST_H_ */