1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (C) B.A.T.M.A.N. contributors:
3  *
4  * Martin Hundebøll, Jeppe Ledet-Pedersen
5  */
6 
7 #ifndef _NET_BATMAN_ADV_NETWORK_CODING_H_
8 #define _NET_BATMAN_ADV_NETWORK_CODING_H_
9 
10 #include "main.h"
11 
12 #include <linux/netdevice.h>
13 #include <linux/skbuff.h>
14 #include <linux/types.h>
15 #include <uapi/linux/batadv_packet.h>
16 
17 #ifdef CONFIG_BATMAN_ADV_NC
18 
19 void batadv_nc_status_update(struct net_device *net_dev);
20 int batadv_nc_init(void);
21 int batadv_nc_mesh_init(struct batadv_priv *bat_priv);
22 void batadv_nc_mesh_free(struct batadv_priv *bat_priv);
23 void batadv_nc_update_nc_node(struct batadv_priv *bat_priv,
24 			      struct batadv_orig_node *orig_node,
25 			      struct batadv_orig_node *orig_neigh_node,
26 			      struct batadv_ogm_packet *ogm_packet,
27 			      int is_single_hop_neigh);
28 void batadv_nc_purge_orig(struct batadv_priv *bat_priv,
29 			  struct batadv_orig_node *orig_node,
30 			  bool (*to_purge)(struct batadv_priv *,
31 					   struct batadv_nc_node *));
32 void batadv_nc_init_bat_priv(struct batadv_priv *bat_priv);
33 void batadv_nc_init_orig(struct batadv_orig_node *orig_node);
34 bool batadv_nc_skb_forward(struct sk_buff *skb,
35 			   struct batadv_neigh_node *neigh_node);
36 void batadv_nc_skb_store_for_decoding(struct batadv_priv *bat_priv,
37 				      struct sk_buff *skb);
38 void batadv_nc_skb_store_sniffed_unicast(struct batadv_priv *bat_priv,
39 					 struct sk_buff *skb);
40 
41 #else /* ifdef CONFIG_BATMAN_ADV_NC */
42 
batadv_nc_status_update(struct net_device * net_dev)43 static inline void batadv_nc_status_update(struct net_device *net_dev)
44 {
45 }
46 
batadv_nc_init(void)47 static inline int batadv_nc_init(void)
48 {
49 	return 0;
50 }
51 
batadv_nc_mesh_init(struct batadv_priv * bat_priv)52 static inline int batadv_nc_mesh_init(struct batadv_priv *bat_priv)
53 {
54 	return 0;
55 }
56 
batadv_nc_mesh_free(struct batadv_priv * bat_priv)57 static inline void batadv_nc_mesh_free(struct batadv_priv *bat_priv)
58 {
59 }
60 
61 static inline void
batadv_nc_update_nc_node(struct batadv_priv * bat_priv,struct batadv_orig_node * orig_node,struct batadv_orig_node * orig_neigh_node,struct batadv_ogm_packet * ogm_packet,int is_single_hop_neigh)62 batadv_nc_update_nc_node(struct batadv_priv *bat_priv,
63 			 struct batadv_orig_node *orig_node,
64 			 struct batadv_orig_node *orig_neigh_node,
65 			 struct batadv_ogm_packet *ogm_packet,
66 			 int is_single_hop_neigh)
67 {
68 }
69 
70 static inline void
batadv_nc_purge_orig(struct batadv_priv * bat_priv,struct batadv_orig_node * orig_node,bool (* to_purge)(struct batadv_priv *,struct batadv_nc_node *))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 }
77 
batadv_nc_init_bat_priv(struct batadv_priv * bat_priv)78 static inline void batadv_nc_init_bat_priv(struct batadv_priv *bat_priv)
79 {
80 }
81 
batadv_nc_init_orig(struct batadv_orig_node * orig_node)82 static inline void batadv_nc_init_orig(struct batadv_orig_node *orig_node)
83 {
84 }
85 
batadv_nc_skb_forward(struct sk_buff * skb,struct batadv_neigh_node * neigh_node)86 static inline bool batadv_nc_skb_forward(struct sk_buff *skb,
87 					 struct batadv_neigh_node *neigh_node)
88 {
89 	return false;
90 }
91 
92 static inline void
batadv_nc_skb_store_for_decoding(struct batadv_priv * bat_priv,struct sk_buff * skb)93 batadv_nc_skb_store_for_decoding(struct batadv_priv *bat_priv,
94 				 struct sk_buff *skb)
95 {
96 }
97 
98 static inline void
batadv_nc_skb_store_sniffed_unicast(struct batadv_priv * bat_priv,struct sk_buff * skb)99 batadv_nc_skb_store_sniffed_unicast(struct batadv_priv *bat_priv,
100 				    struct sk_buff *skb)
101 {
102 }
103 
104 #endif /* ifdef CONFIG_BATMAN_ADV_NC */
105 
106 #endif /* _NET_BATMAN_ADV_NETWORK_CODING_H_ */
107