1 /* Copyright (C) 2011-2015 B.A.T.M.A.N. contributors:
2  *
3  * Simon Wunderlich
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_BLA_H_
19 #define _NET_BATMAN_ADV_BLA_H_
20 
21 #include "main.h"
22 
23 #include <linux/types.h>
24 
25 struct net_device;
26 struct seq_file;
27 struct sk_buff;
28 
29 #ifdef CONFIG_BATMAN_ADV_BLA
30 int batadv_bla_rx(struct batadv_priv *bat_priv, struct sk_buff *skb,
31 		  unsigned short vid, bool is_bcast);
32 int batadv_bla_tx(struct batadv_priv *bat_priv, struct sk_buff *skb,
33 		  unsigned short vid);
34 int batadv_bla_is_backbone_gw(struct sk_buff *skb,
35 			      struct batadv_orig_node *orig_node, int hdr_size);
36 int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, void *offset);
37 int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq,
38 					     void *offset);
39 bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, u8 *orig,
40 				    unsigned short vid);
41 int batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
42 				   struct sk_buff *skb);
43 void batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
44 				    struct batadv_hard_iface *primary_if,
45 				    struct batadv_hard_iface *oldif);
46 void batadv_bla_status_update(struct net_device *net_dev);
47 int batadv_bla_init(struct batadv_priv *bat_priv);
48 void batadv_bla_free(struct batadv_priv *bat_priv);
49 
50 #define BATADV_BLA_CRC_INIT	0
51 #else /* ifdef CONFIG_BATMAN_ADV_BLA */
52 
53 static inline int batadv_bla_rx(struct batadv_priv *bat_priv,
54 				struct sk_buff *skb, unsigned short vid,
55 				bool is_bcast)
56 {
57 	return 0;
58 }
59 
60 static inline int batadv_bla_tx(struct batadv_priv *bat_priv,
61 				struct sk_buff *skb, unsigned short vid)
62 {
63 	return 0;
64 }
65 
66 static inline int batadv_bla_is_backbone_gw(struct sk_buff *skb,
67 					    struct batadv_orig_node *orig_node,
68 					    int hdr_size)
69 {
70 	return 0;
71 }
72 
73 static inline int batadv_bla_claim_table_seq_print_text(struct seq_file *seq,
74 							void *offset)
75 {
76 	return 0;
77 }
78 
79 static inline int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq,
80 							   void *offset)
81 {
82 	return 0;
83 }
84 
85 static inline bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv,
86 						  u8 *orig, unsigned short vid)
87 {
88 	return false;
89 }
90 
91 static inline int
92 batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
93 			       struct sk_buff *skb)
94 {
95 	return 0;
96 }
97 
98 static inline void
99 batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
100 			       struct batadv_hard_iface *primary_if,
101 			       struct batadv_hard_iface *oldif)
102 {
103 }
104 
105 static inline int batadv_bla_init(struct batadv_priv *bat_priv)
106 {
107 	return 1;
108 }
109 
110 static inline void batadv_bla_free(struct batadv_priv *bat_priv)
111 {
112 }
113 
114 #endif /* ifdef CONFIG_BATMAN_ADV_BLA */
115 
116 #endif /* ifndef _NET_BATMAN_ADV_BLA_H_ */
117