1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (C) 2012-2019  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_ */
134