1 /* Copyright (C) 2014-2016 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 sk_buff; 24 25 /** 26 * enum batadv_forw_mode - the way a packet should be forwarded as 27 * @BATADV_FORW_ALL: forward the packet to all nodes (currently via classic 28 * flooding) 29 * @BATADV_FORW_SINGLE: forward the packet to a single node (currently via the 30 * BATMAN unicast routing protocol) 31 * @BATADV_FORW_NONE: don't forward, drop it 32 */ 33 enum batadv_forw_mode { 34 BATADV_FORW_ALL, 35 BATADV_FORW_SINGLE, 36 BATADV_FORW_NONE, 37 }; 38 39 #ifdef CONFIG_BATMAN_ADV_MCAST 40 41 void batadv_mcast_mla_update(struct batadv_priv *bat_priv); 42 43 enum batadv_forw_mode 44 batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb, 45 struct batadv_orig_node **mcast_single_orig); 46 47 void batadv_mcast_init(struct batadv_priv *bat_priv); 48 49 void batadv_mcast_free(struct batadv_priv *bat_priv); 50 51 void batadv_mcast_purge_orig(struct batadv_orig_node *orig_node); 52 53 #else 54 55 static inline void batadv_mcast_mla_update(struct batadv_priv *bat_priv) 56 { 57 } 58 59 static inline enum batadv_forw_mode 60 batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb, 61 struct batadv_orig_node **mcast_single_orig) 62 { 63 return BATADV_FORW_ALL; 64 } 65 66 static inline int batadv_mcast_init(struct batadv_priv *bat_priv) 67 { 68 return 0; 69 } 70 71 static inline void batadv_mcast_free(struct batadv_priv *bat_priv) 72 { 73 } 74 75 static inline void batadv_mcast_purge_orig(struct batadv_orig_node *orig_node) 76 { 77 } 78 79 #endif /* CONFIG_BATMAN_ADV_MCAST */ 80 81 #endif /* _NET_BATMAN_ADV_MULTICAST_H_ */ 82