1 /* Copyright (C) 2014-2015 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 #include "main.h" 22 23 struct batadv_orig_node; 24 struct batadv_priv; 25 struct sk_buff; 26 27 /** 28 * batadv_forw_mode - the way a packet should be forwarded as 29 * @BATADV_FORW_ALL: forward the packet to all nodes (currently via classic 30 * flooding) 31 * @BATADV_FORW_SINGLE: forward the packet to a single node (currently via the 32 * BATMAN unicast routing protocol) 33 * @BATADV_FORW_NONE: don't forward, drop it 34 */ 35 enum batadv_forw_mode { 36 BATADV_FORW_ALL, 37 BATADV_FORW_SINGLE, 38 BATADV_FORW_NONE, 39 }; 40 41 #ifdef CONFIG_BATMAN_ADV_MCAST 42 43 void batadv_mcast_mla_update(struct batadv_priv *bat_priv); 44 45 enum batadv_forw_mode 46 batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb, 47 struct batadv_orig_node **mcast_single_orig); 48 49 void batadv_mcast_init(struct batadv_priv *bat_priv); 50 51 void batadv_mcast_free(struct batadv_priv *bat_priv); 52 53 void batadv_mcast_purge_orig(struct batadv_orig_node *orig_node); 54 55 #else 56 57 static inline void batadv_mcast_mla_update(struct batadv_priv *bat_priv) 58 { 59 } 60 61 static inline enum batadv_forw_mode 62 batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb, 63 struct batadv_orig_node **mcast_single_orig) 64 { 65 return BATADV_FORW_ALL; 66 } 67 68 static inline int batadv_mcast_init(struct batadv_priv *bat_priv) 69 { 70 return 0; 71 } 72 73 static inline void batadv_mcast_free(struct batadv_priv *bat_priv) 74 { 75 } 76 77 static inline void batadv_mcast_purge_orig(struct batadv_orig_node *orig_node) 78 { 79 } 80 81 #endif /* CONFIG_BATMAN_ADV_MCAST */ 82 83 #endif /* _NET_BATMAN_ADV_MULTICAST_H_ */ 84