net/batman-adv/network-coding.h

   1 /* Copyright (C) 2012-2013 B.A.T.M.A.N. contributors:
   2  *
   3  * Martin Hundebøll, Jeppe Ledet-Pedersen
   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, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  17  * 02110-1301, USA
  18  */
  19
  20 #ifndef _NET_BATMAN_ADV_NETWORK_CODING_H_
  21 #define _NET_BATMAN_ADV_NETWORK_CODING_H_
  22
  23 #ifdef CONFIG_BATMAN_ADV_NC
  24
  25 int batadv_nc_init(struct batadv_priv *bat_priv);
  26 void batadv_nc_free(struct batadv_priv *bat_priv);
  27 void batadv_nc_update_nc_node(struct batadv_priv *bat_priv,
  28                               struct batadv_orig_node *orig_node,
  29                               struct batadv_orig_node *orig_neigh_node,
  30                               struct batadv_ogm_packet *ogm_packet,
  31                               int is_single_hop_neigh);
  32 void batadv_nc_purge_orig(struct batadv_priv *bat_priv,
  33                           struct batadv_orig_node *orig_node,
  34                           bool (*to_purge)(struct batadv_priv *,
  35                                            struct batadv_nc_node *));
  36 void batadv_nc_init_bat_priv(struct batadv_priv *bat_priv);
  37 void batadv_nc_init_orig(struct batadv_orig_node *orig_node);
  38 bool batadv_nc_skb_forward(struct sk_buff *skb,
  39                            struct batadv_neigh_node *neigh_node,
  40                            struct ethhdr *ethhdr);
  41 void batadv_nc_skb_store_for_decoding(struct batadv_priv *bat_priv,
  42                                       struct sk_buff *skb);
  43 void batadv_nc_skb_store_sniffed_unicast(struct batadv_priv *bat_priv,
  44                                          struct sk_buff *skb);
  45 int batadv_nc_nodes_seq_print_text(struct seq_file *seq, void *offset);
  46 int batadv_nc_init_debugfs(struct batadv_priv *bat_priv);
  47
  48 #else /* ifdef CONFIG_BATMAN_ADV_NC */
  49
  50 static inline int batadv_nc_init(struct batadv_priv *bat_priv)
  51 {
  52         return 0;
  53 }
  54
  55 static inline void batadv_nc_free(struct batadv_priv *bat_priv)
  56 {
  57         return;
  58 }
  59
  60 static inline void
  61 batadv_nc_update_nc_node(struct batadv_priv *bat_priv,
  62                          struct batadv_orig_node *orig_node,
  63                          struct batadv_orig_node *orig_neigh_node,
  64                          struct batadv_ogm_packet *ogm_packet,
  65                          int is_single_hop_neigh)
  66 {
  67         return;
  68 }
  69
  70 static inline void
  71 batadv_nc_purge_orig(struct batadv_priv *bat_priv,
  72                      struct batadv_orig_node *orig_node,
  73                      bool (*to_purge)(struct batadv_priv *,
  74                                       struct batadv_nc_node *))
  75 {
  76         return;
  77 }
  78
  79 static inline void batadv_nc_init_bat_priv(struct batadv_priv *bat_priv)
  80 {
  81         return;
  82 }
  83
  84 static inline void batadv_nc_init_orig(struct batadv_orig_node *orig_node)
  85 {
  86         return;
  87 }
  88
  89 static inline bool batadv_nc_skb_forward(struct sk_buff *skb,
  90                                          struct batadv_neigh_node *neigh_node,
  91                                          struct ethhdr *ethhdr)
  92 {
  93         return false;
  94 }
  95
  96 static inline void
  97 batadv_nc_skb_store_for_decoding(struct batadv_priv *bat_priv,
  98                                  struct sk_buff *skb)
  99 {
 100         return;
 101 }
 102
 103 static inline void
 104 batadv_nc_skb_store_sniffed_unicast(struct batadv_priv *bat_priv,
 105                                     struct sk_buff *skb)
 106 {
 107         return;
 108 }
 109
 110 static inline int batadv_nc_nodes_seq_print_text(struct seq_file *seq,
 111                                                  void *offset)
 112 {
 113         return 0;
 114 }
 115
 116 static inline int batadv_nc_init_debugfs(struct batadv_priv *bat_priv)
 117 {
 118         return 0;
 119 }
 120
 121 #endif /* ifdef CONFIG_BATMAN_ADV_NC */
 122
 123 #endif /* _NET_BATMAN_ADV_NETWORK_CODING_H_ */