1 /* Copyright (C) 2011-2016  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 bool batadv_bla_rx(struct batadv_priv *bat_priv, struct sk_buff *skb,
31 		   unsigned short vid, bool is_bcast);
32 bool batadv_bla_tx(struct batadv_priv *bat_priv, struct sk_buff *skb,
33 		   unsigned short vid);
34 bool batadv_bla_is_backbone_gw(struct sk_buff *skb,
35 			       struct batadv_orig_node *orig_node,
36 			       int hdr_size);
37 int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, void *offset);
38 int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq,
39 					     void *offset);
40 bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, u8 *orig,
41 				    unsigned short vid);
42 bool batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
43 				    struct sk_buff *skb);
44 void batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
45 				    struct batadv_hard_iface *primary_if,
46 				    struct batadv_hard_iface *oldif);
47 void batadv_bla_status_update(struct net_device *net_dev);
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 bool batadv_bla_rx(struct batadv_priv *bat_priv,
55 				 struct sk_buff *skb, unsigned short vid,
56 				 bool is_bcast)
57 {
58 	return false;
59 }
60 
61 static inline bool batadv_bla_tx(struct batadv_priv *bat_priv,
62 				 struct sk_buff *skb, unsigned short vid)
63 {
64 	return false;
65 }
66 
67 static inline bool batadv_bla_is_backbone_gw(struct sk_buff *skb,
68 					     struct batadv_orig_node *orig_node,
69 					     int hdr_size)
70 {
71 	return false;
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 						  u8 *orig, unsigned short vid)
88 {
89 	return false;
90 }
91 
92 static inline bool
93 batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
94 			       struct sk_buff *skb)
95 {
96 	return false;
97 }
98 
99 static inline void
100 batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
101 			       struct batadv_hard_iface *primary_if,
102 			       struct batadv_hard_iface *oldif)
103 {
104 }
105 
106 static inline int batadv_bla_init(struct batadv_priv *bat_priv)
107 {
108 	return 1;
109 }
110 
111 static inline void batadv_bla_free(struct batadv_priv *bat_priv)
112 {
113 }
114 
115 #endif /* ifdef CONFIG_BATMAN_ADV_BLA */
116 
117 #endif /* ifndef _NET_BATMAN_ADV_BLA_H_ */
118