1 /* Copyright (C) 2012-2015 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, see <http://www.gnu.org/licenses/>.
16  */
17 
18 #ifndef _NET_BATMAN_ADV_NETWORK_CODING_H_
19 #define _NET_BATMAN_ADV_NETWORK_CODING_H_
20 
21 #include "main.h"
22 
23 #include <linux/types.h>
24 
25 struct batadv_nc_node;
26 struct batadv_neigh_node;
27 struct batadv_ogm_packet;
28 struct batadv_orig_node;
29 struct batadv_priv;
30 struct net_device;
31 struct seq_file;
32 struct sk_buff;
33 
34 #ifdef CONFIG_BATMAN_ADV_NC
35 
36 void batadv_nc_status_update(struct net_device *net_dev);
37 int batadv_nc_init(void);
38 int batadv_nc_mesh_init(struct batadv_priv *bat_priv);
39 void batadv_nc_mesh_free(struct batadv_priv *bat_priv);
40 void batadv_nc_update_nc_node(struct batadv_priv *bat_priv,
41 			      struct batadv_orig_node *orig_node,
42 			      struct batadv_orig_node *orig_neigh_node,
43 			      struct batadv_ogm_packet *ogm_packet,
44 			      int is_single_hop_neigh);
45 void batadv_nc_purge_orig(struct batadv_priv *bat_priv,
46 			  struct batadv_orig_node *orig_node,
47 			  bool (*to_purge)(struct batadv_priv *,
48 					   struct batadv_nc_node *));
49 void batadv_nc_init_bat_priv(struct batadv_priv *bat_priv);
50 void batadv_nc_init_orig(struct batadv_orig_node *orig_node);
51 bool batadv_nc_skb_forward(struct sk_buff *skb,
52 			   struct batadv_neigh_node *neigh_node);
53 void batadv_nc_skb_store_for_decoding(struct batadv_priv *bat_priv,
54 				      struct sk_buff *skb);
55 void batadv_nc_skb_store_sniffed_unicast(struct batadv_priv *bat_priv,
56 					 struct sk_buff *skb);
57 int batadv_nc_nodes_seq_print_text(struct seq_file *seq, void *offset);
58 int batadv_nc_init_debugfs(struct batadv_priv *bat_priv);
59 
60 #else /* ifdef CONFIG_BATMAN_ADV_NC */
61 
62 static inline void batadv_nc_status_update(struct net_device *net_dev)
63 {
64 }
65 
66 static inline int batadv_nc_init(void)
67 {
68 	return 0;
69 }
70 
71 static inline int batadv_nc_mesh_init(struct batadv_priv *bat_priv)
72 {
73 	return 0;
74 }
75 
76 static inline void batadv_nc_mesh_free(struct batadv_priv *bat_priv)
77 {
78 }
79 
80 static inline void
81 batadv_nc_update_nc_node(struct batadv_priv *bat_priv,
82 			 struct batadv_orig_node *orig_node,
83 			 struct batadv_orig_node *orig_neigh_node,
84 			 struct batadv_ogm_packet *ogm_packet,
85 			 int is_single_hop_neigh)
86 {
87 }
88 
89 static inline void
90 batadv_nc_purge_orig(struct batadv_priv *bat_priv,
91 		     struct batadv_orig_node *orig_node,
92 		     bool (*to_purge)(struct batadv_priv *,
93 				      struct batadv_nc_node *))
94 {
95 }
96 
97 static inline void batadv_nc_init_bat_priv(struct batadv_priv *bat_priv)
98 {
99 }
100 
101 static inline void batadv_nc_init_orig(struct batadv_orig_node *orig_node)
102 {
103 }
104 
105 static inline bool batadv_nc_skb_forward(struct sk_buff *skb,
106 					 struct batadv_neigh_node *neigh_node)
107 {
108 	return false;
109 }
110 
111 static inline void
112 batadv_nc_skb_store_for_decoding(struct batadv_priv *bat_priv,
113 				 struct sk_buff *skb)
114 {
115 }
116 
117 static inline void
118 batadv_nc_skb_store_sniffed_unicast(struct batadv_priv *bat_priv,
119 				    struct sk_buff *skb)
120 {
121 }
122 
123 static inline int batadv_nc_nodes_seq_print_text(struct seq_file *seq,
124 						 void *offset)
125 {
126 	return 0;
127 }
128 
129 static inline int batadv_nc_init_debugfs(struct batadv_priv *bat_priv)
130 {
131 	return 0;
132 }
133 
134 #endif /* ifdef CONFIG_BATMAN_ADV_NC */
135 
136 #endif /* _NET_BATMAN_ADV_NETWORK_CODING_H_ */
137