net/batman-adv/network-coding.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /* Copyright (C) 2012-2017  B.A.T.M.A.N. contributors:
   3  *
   4  * Martin Hundebøll, Jeppe Ledet-Pedersen
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of version 2 of the GNU General Public
   8  * License as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #ifndef _NET_BATMAN_ADV_NETWORK_CODING_H_
  20 #define _NET_BATMAN_ADV_NETWORK_CODING_H_
  21
  22 #include "main.h"
  23
  24 #include <linux/types.h>
  25
  26 struct batadv_ogm_packet;
  27 struct net_device;
  28 struct seq_file;
  29 struct sk_buff;
  30
  31 #ifdef CONFIG_BATMAN_ADV_NC
  32
  33 void batadv_nc_status_update(struct net_device *net_dev);
  34 int batadv_nc_init(void);
  35 int batadv_nc_mesh_init(struct batadv_priv *bat_priv);
  36 void batadv_nc_mesh_free(struct batadv_priv *bat_priv);
  37 void batadv_nc_update_nc_node(struct batadv_priv *bat_priv,
  38                               struct batadv_orig_node *orig_node,
  39                               struct batadv_orig_node *orig_neigh_node,
  40                               struct batadv_ogm_packet *ogm_packet,
  41                               int is_single_hop_neigh);
  42 void batadv_nc_purge_orig(struct batadv_priv *bat_priv,
  43                           struct batadv_orig_node *orig_node,
  44                           bool (*to_purge)(struct batadv_priv *,
  45                                            struct batadv_nc_node *));
  46 void batadv_nc_init_bat_priv(struct batadv_priv *bat_priv);
  47 void batadv_nc_init_orig(struct batadv_orig_node *orig_node);
  48 bool batadv_nc_skb_forward(struct sk_buff *skb,
  49                            struct batadv_neigh_node *neigh_node);
  50 void batadv_nc_skb_store_for_decoding(struct batadv_priv *bat_priv,
  51                                       struct sk_buff *skb);
  52 void batadv_nc_skb_store_sniffed_unicast(struct batadv_priv *bat_priv,
  53                                          struct sk_buff *skb);
  54 int batadv_nc_nodes_seq_print_text(struct seq_file *seq, void *offset);
  55 int batadv_nc_init_debugfs(struct batadv_priv *bat_priv);
  56
  57 #else /* ifdef CONFIG_BATMAN_ADV_NC */
  58
  59 static inline void batadv_nc_status_update(struct net_device *net_dev)
  60 {
  61 }
  62
  63 static inline int batadv_nc_init(void)
  64 {
  65         return 0;
  66 }
  67
  68 static inline int batadv_nc_mesh_init(struct batadv_priv *bat_priv)
  69 {
  70         return 0;
  71 }
  72
  73 static inline void batadv_nc_mesh_free(struct batadv_priv *bat_priv)
  74 {
  75 }
  76
  77 static inline void
  78 batadv_nc_update_nc_node(struct batadv_priv *bat_priv,
  79                          struct batadv_orig_node *orig_node,
  80                          struct batadv_orig_node *orig_neigh_node,
  81                          struct batadv_ogm_packet *ogm_packet,
  82                          int is_single_hop_neigh)
  83 {
  84 }
  85
  86 static inline void
  87 batadv_nc_purge_orig(struct batadv_priv *bat_priv,
  88                      struct batadv_orig_node *orig_node,
  89                      bool (*to_purge)(struct batadv_priv *,
  90                                       struct batadv_nc_node *))
  91 {
  92 }
  93
  94 static inline void batadv_nc_init_bat_priv(struct batadv_priv *bat_priv)
  95 {
  96 }
  97
  98 static inline void batadv_nc_init_orig(struct batadv_orig_node *orig_node)
  99 {
 100 }
 101
 102 static inline bool batadv_nc_skb_forward(struct sk_buff *skb,
 103                                          struct batadv_neigh_node *neigh_node)
 104 {
 105         return false;
 106 }
 107
 108 static inline void
 109 batadv_nc_skb_store_for_decoding(struct batadv_priv *bat_priv,
 110                                  struct sk_buff *skb)
 111 {
 112 }
 113
 114 static inline void
 115 batadv_nc_skb_store_sniffed_unicast(struct batadv_priv *bat_priv,
 116                                     struct sk_buff *skb)
 117 {
 118 }
 119
 120 static inline int batadv_nc_nodes_seq_print_text(struct seq_file *seq,
 121                                                  void *offset)
 122 {
 123         return 0;
 124 }
 125
 126 static inline int batadv_nc_init_debugfs(struct batadv_priv *bat_priv)
 127 {
 128         return 0;
 129 }
 130
 131 #endif /* ifdef CONFIG_BATMAN_ADV_NC */
 132
 133 #endif /* _NET_BATMAN_ADV_NETWORK_CODING_H_ */