1 /* Copyright (C) 2012-2017  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_ogm_packet;
26 struct net_device;
27 struct seq_file;
28 struct sk_buff;
29 
30 #ifdef CONFIG_BATMAN_ADV_NC
31 
32 void batadv_nc_status_update(struct net_device *net_dev);
33 int batadv_nc_init(void);
34 int batadv_nc_mesh_init(struct batadv_priv *bat_priv);
35 void batadv_nc_mesh_free(struct batadv_priv *bat_priv);
36 void batadv_nc_update_nc_node(struct batadv_priv *bat_priv,
37 			      struct batadv_orig_node *orig_node,
38 			      struct batadv_orig_node *orig_neigh_node,
39 			      struct batadv_ogm_packet *ogm_packet,
40 			      int is_single_hop_neigh);
41 void batadv_nc_purge_orig(struct batadv_priv *bat_priv,
42 			  struct batadv_orig_node *orig_node,
43 			  bool (*to_purge)(struct batadv_priv *,
44 					   struct batadv_nc_node *));
45 void batadv_nc_init_bat_priv(struct batadv_priv *bat_priv);
46 void batadv_nc_init_orig(struct batadv_orig_node *orig_node);
47 bool batadv_nc_skb_forward(struct sk_buff *skb,
48 			   struct batadv_neigh_node *neigh_node);
49 void batadv_nc_skb_store_for_decoding(struct batadv_priv *bat_priv,
50 				      struct sk_buff *skb);
51 void batadv_nc_skb_store_sniffed_unicast(struct batadv_priv *bat_priv,
52 					 struct sk_buff *skb);
53 int batadv_nc_nodes_seq_print_text(struct seq_file *seq, void *offset);
54 int batadv_nc_init_debugfs(struct batadv_priv *bat_priv);
55 
56 #else /* ifdef CONFIG_BATMAN_ADV_NC */
57 
58 static inline void batadv_nc_status_update(struct net_device *net_dev)
59 {
60 }
61 
62 static inline int batadv_nc_init(void)
63 {
64 	return 0;
65 }
66 
67 static inline int batadv_nc_mesh_init(struct batadv_priv *bat_priv)
68 {
69 	return 0;
70 }
71 
72 static inline void batadv_nc_mesh_free(struct batadv_priv *bat_priv)
73 {
74 }
75 
76 static inline void
77 batadv_nc_update_nc_node(struct batadv_priv *bat_priv,
78 			 struct batadv_orig_node *orig_node,
79 			 struct batadv_orig_node *orig_neigh_node,
80 			 struct batadv_ogm_packet *ogm_packet,
81 			 int is_single_hop_neigh)
82 {
83 }
84 
85 static inline void
86 batadv_nc_purge_orig(struct batadv_priv *bat_priv,
87 		     struct batadv_orig_node *orig_node,
88 		     bool (*to_purge)(struct batadv_priv *,
89 				      struct batadv_nc_node *))
90 {
91 }
92 
93 static inline void batadv_nc_init_bat_priv(struct batadv_priv *bat_priv)
94 {
95 }
96 
97 static inline void batadv_nc_init_orig(struct batadv_orig_node *orig_node)
98 {
99 }
100 
101 static inline bool batadv_nc_skb_forward(struct sk_buff *skb,
102 					 struct batadv_neigh_node *neigh_node)
103 {
104 	return false;
105 }
106 
107 static inline void
108 batadv_nc_skb_store_for_decoding(struct batadv_priv *bat_priv,
109 				 struct sk_buff *skb)
110 {
111 }
112 
113 static inline void
114 batadv_nc_skb_store_sniffed_unicast(struct batadv_priv *bat_priv,
115 				    struct sk_buff *skb)
116 {
117 }
118 
119 static inline int batadv_nc_nodes_seq_print_text(struct seq_file *seq,
120 						 void *offset)
121 {
122 	return 0;
123 }
124 
125 static inline int batadv_nc_init_debugfs(struct batadv_priv *bat_priv)
126 {
127 	return 0;
128 }
129 
130 #endif /* ifdef CONFIG_BATMAN_ADV_NC */
131 
132 #endif /* _NET_BATMAN_ADV_NETWORK_CODING_H_ */
133