1 /* Copyright (C) 2011-2013 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, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
17  * 02110-1301, USA
18  */
19 
20 #ifndef _NET_BATMAN_ADV_BLA_H_
21 #define _NET_BATMAN_ADV_BLA_H_
22 
23 #ifdef CONFIG_BATMAN_ADV_BLA
24 int batadv_bla_rx(struct batadv_priv *bat_priv, struct sk_buff *skb,
25 		  unsigned short vid, bool is_bcast);
26 int batadv_bla_tx(struct batadv_priv *bat_priv, struct sk_buff *skb,
27 		  unsigned short vid);
28 int batadv_bla_is_backbone_gw(struct sk_buff *skb,
29 			      struct batadv_orig_node *orig_node, int hdr_size);
30 int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, void *offset);
31 int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq,
32 					     void *offset);
33 bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, uint8_t *orig,
34 				    unsigned short vid);
35 int batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
36 				   struct sk_buff *skb);
37 void batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
38 				    struct batadv_hard_iface *primary_if,
39 				    struct batadv_hard_iface *oldif);
40 int batadv_bla_init(struct batadv_priv *bat_priv);
41 void batadv_bla_free(struct batadv_priv *bat_priv);
42 
43 #define BATADV_BLA_CRC_INIT	0
44 #else /* ifdef CONFIG_BATMAN_ADV_BLA */
45 
46 static inline int batadv_bla_rx(struct batadv_priv *bat_priv,
47 				struct sk_buff *skb, unsigned short vid,
48 				bool is_bcast)
49 {
50 	return 0;
51 }
52 
53 static inline int batadv_bla_tx(struct batadv_priv *bat_priv,
54 				struct sk_buff *skb, unsigned short vid)
55 {
56 	return 0;
57 }
58 
59 static inline int batadv_bla_is_backbone_gw(struct sk_buff *skb,
60 					    struct batadv_orig_node *orig_node,
61 					    int hdr_size)
62 {
63 	return 0;
64 }
65 
66 static inline int batadv_bla_claim_table_seq_print_text(struct seq_file *seq,
67 							void *offset)
68 {
69 	return 0;
70 }
71 
72 static inline int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq,
73 							   void *offset)
74 {
75 	return 0;
76 }
77 
78 static inline bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv,
79 						  uint8_t *orig,
80 						  unsigned short vid)
81 {
82 	return false;
83 }
84 
85 static inline int
86 batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
87 			       struct sk_buff *skb)
88 {
89 	return 0;
90 }
91 
92 static inline void
93 batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
94 			       struct batadv_hard_iface *primary_if,
95 			       struct batadv_hard_iface *oldif)
96 {
97 }
98 
99 static inline int batadv_bla_init(struct batadv_priv *bat_priv)
100 {
101 	return 1;
102 }
103 
104 static inline void batadv_bla_free(struct batadv_priv *bat_priv)
105 {
106 }
107 
108 #endif /* ifdef CONFIG_BATMAN_ADV_BLA */
109 
110 #endif /* ifndef _NET_BATMAN_ADV_BLA_H_ */
111