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 seq_file;
26 struct sk_buff;
27 
28 #ifdef CONFIG_BATMAN_ADV_BLA
29 int batadv_bla_rx(struct batadv_priv *bat_priv, struct sk_buff *skb,
30 		  unsigned short vid, bool is_bcast);
31 int batadv_bla_tx(struct batadv_priv *bat_priv, struct sk_buff *skb,
32 		  unsigned short vid);
33 int batadv_bla_is_backbone_gw(struct sk_buff *skb,
34 			      struct batadv_orig_node *orig_node, int hdr_size);
35 int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, void *offset);
36 int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq,
37 					     void *offset);
38 bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, u8 *orig,
39 				    unsigned short vid);
40 int batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
41 				   struct sk_buff *skb);
42 void batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
43 				    struct batadv_hard_iface *primary_if,
44 				    struct batadv_hard_iface *oldif);
45 int batadv_bla_init(struct batadv_priv *bat_priv);
46 void batadv_bla_free(struct batadv_priv *bat_priv);
47 
48 #define BATADV_BLA_CRC_INIT	0
49 #else /* ifdef CONFIG_BATMAN_ADV_BLA */
50 
51 static inline int batadv_bla_rx(struct batadv_priv *bat_priv,
52 				struct sk_buff *skb, unsigned short vid,
53 				bool is_bcast)
54 {
55 	return 0;
56 }
57 
58 static inline int batadv_bla_tx(struct batadv_priv *bat_priv,
59 				struct sk_buff *skb, unsigned short vid)
60 {
61 	return 0;
62 }
63 
64 static inline int batadv_bla_is_backbone_gw(struct sk_buff *skb,
65 					    struct batadv_orig_node *orig_node,
66 					    int hdr_size)
67 {
68 	return 0;
69 }
70 
71 static inline int batadv_bla_claim_table_seq_print_text(struct seq_file *seq,
72 							void *offset)
73 {
74 	return 0;
75 }
76 
77 static inline int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq,
78 							   void *offset)
79 {
80 	return 0;
81 }
82 
83 static inline bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv,
84 						  u8 *orig, unsigned short vid)
85 {
86 	return false;
87 }
88 
89 static inline int
90 batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
91 			       struct sk_buff *skb)
92 {
93 	return 0;
94 }
95 
96 static inline void
97 batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
98 			       struct batadv_hard_iface *primary_if,
99 			       struct batadv_hard_iface *oldif)
100 {
101 }
102 
103 static inline int batadv_bla_init(struct batadv_priv *bat_priv)
104 {
105 	return 1;
106 }
107 
108 static inline void batadv_bla_free(struct batadv_priv *bat_priv)
109 {
110 }
111 
112 #endif /* ifdef CONFIG_BATMAN_ADV_BLA */
113 
114 #endif /* ifndef _NET_BATMAN_ADV_BLA_H_ */
115