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 batadv_hard_iface;
26 struct batadv_orig_node;
27 struct batadv_priv;
28 struct seq_file;
29 struct sk_buff;
30 
31 #ifdef CONFIG_BATMAN_ADV_BLA
32 int batadv_bla_rx(struct batadv_priv *bat_priv, struct sk_buff *skb,
33 		  unsigned short vid, bool is_bcast);
34 int batadv_bla_tx(struct batadv_priv *bat_priv, struct sk_buff *skb,
35 		  unsigned short vid);
36 int batadv_bla_is_backbone_gw(struct sk_buff *skb,
37 			      struct batadv_orig_node *orig_node, int hdr_size);
38 int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, void *offset);
39 int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq,
40 					     void *offset);
41 bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, uint8_t *orig,
42 				    unsigned short vid);
43 int batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
44 				   struct sk_buff *skb);
45 void batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
46 				    struct batadv_hard_iface *primary_if,
47 				    struct batadv_hard_iface *oldif);
48 int batadv_bla_init(struct batadv_priv *bat_priv);
49 void batadv_bla_free(struct batadv_priv *bat_priv);
50 
51 #define BATADV_BLA_CRC_INIT	0
52 #else /* ifdef CONFIG_BATMAN_ADV_BLA */
53 
54 static inline int batadv_bla_rx(struct batadv_priv *bat_priv,
55 				struct sk_buff *skb, unsigned short vid,
56 				bool is_bcast)
57 {
58 	return 0;
59 }
60 
61 static inline int batadv_bla_tx(struct batadv_priv *bat_priv,
62 				struct sk_buff *skb, unsigned short vid)
63 {
64 	return 0;
65 }
66 
67 static inline int batadv_bla_is_backbone_gw(struct sk_buff *skb,
68 					    struct batadv_orig_node *orig_node,
69 					    int hdr_size)
70 {
71 	return 0;
72 }
73 
74 static inline int batadv_bla_claim_table_seq_print_text(struct seq_file *seq,
75 							void *offset)
76 {
77 	return 0;
78 }
79 
80 static inline int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq,
81 							   void *offset)
82 {
83 	return 0;
84 }
85 
86 static inline bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv,
87 						  uint8_t *orig,
88 						  unsigned short vid)
89 {
90 	return false;
91 }
92 
93 static inline int
94 batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
95 			       struct sk_buff *skb)
96 {
97 	return 0;
98 }
99 
100 static inline void
101 batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
102 			       struct batadv_hard_iface *primary_if,
103 			       struct batadv_hard_iface *oldif)
104 {
105 }
106 
107 static inline int batadv_bla_init(struct batadv_priv *bat_priv)
108 {
109 	return 1;
110 }
111 
112 static inline void batadv_bla_free(struct batadv_priv *bat_priv)
113 {
114 }
115 
116 #endif /* ifdef CONFIG_BATMAN_ADV_BLA */
117 
118 #endif /* ifndef _NET_BATMAN_ADV_BLA_H_ */
119