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_ */
124