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 seq_file; 24 struct sk_buff; 25 26 /** 27 * enum batadv_forw_mode - the way a packet should be forwarded as 28 * @BATADV_FORW_ALL: forward the packet to all nodes (currently via classic 29 * flooding) 30 * @BATADV_FORW_SINGLE: forward the packet to a single node (currently via the 31 * BATMAN unicast routing protocol) 32 * @BATADV_FORW_NONE: don't forward, drop it 33 */ 34 enum batadv_forw_mode { 35 BATADV_FORW_ALL, 36 BATADV_FORW_SINGLE, 37 BATADV_FORW_NONE, 38 }; 39 40 #ifdef CONFIG_BATMAN_ADV_MCAST 41 42 void batadv_mcast_mla_update(struct batadv_priv *bat_priv); 43 44 enum batadv_forw_mode 45 batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb, 46 struct batadv_orig_node **mcast_single_orig); 47 48 void batadv_mcast_init(struct batadv_priv *bat_priv); 49 50 int batadv_mcast_flags_seq_print_text(struct seq_file *seq, void *offset); 51 52 void batadv_mcast_free(struct batadv_priv *bat_priv); 53 54 void batadv_mcast_purge_orig(struct batadv_orig_node *orig_node); 55 56 #else 57 58 static inline void batadv_mcast_mla_update(struct batadv_priv *bat_priv) 59 { 60 } 61 62 static inline enum batadv_forw_mode 63 batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb, 64 struct batadv_orig_node **mcast_single_orig) 65 { 66 return BATADV_FORW_ALL; 67 } 68 69 static inline int batadv_mcast_init(struct batadv_priv *bat_priv) 70 { 71 return 0; 72 } 73 74 static inline void batadv_mcast_free(struct batadv_priv *bat_priv) 75 { 76 } 77 78 static inline void batadv_mcast_purge_orig(struct batadv_orig_node *orig_node) 79 { 80 } 81 82 #endif /* CONFIG_BATMAN_ADV_MCAST */ 83 84 #endif /* _NET_BATMAN_ADV_MULTICAST_H_ */ 85