xref: /linux/net/batman-adv/bridge_loop_avoidance.h (revision 0d456bad36d42d16022be045c8a53ddbb59ee478)
1 /* Copyright (C) 2011-2012 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, short vid,
25 		  bool is_bcast);
26 int batadv_bla_tx(struct batadv_priv *bat_priv, struct sk_buff *skb, short vid);
27 int batadv_bla_is_backbone_gw(struct sk_buff *skb,
28 			      struct batadv_orig_node *orig_node, int hdr_size);
29 int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, void *offset);
30 int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq,
31 					     void *offset);
32 int batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, uint8_t *orig);
33 int batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
34 				   struct sk_buff *skb);
35 void batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
36 				    struct batadv_hard_iface *primary_if,
37 				    struct batadv_hard_iface *oldif);
38 int batadv_bla_init(struct batadv_priv *bat_priv);
39 void batadv_bla_free(struct batadv_priv *bat_priv);
40 
41 #define BATADV_BLA_CRC_INIT	0
42 #else /* ifdef CONFIG_BATMAN_ADV_BLA */
43 
44 static inline int batadv_bla_rx(struct batadv_priv *bat_priv,
45 				struct sk_buff *skb, short vid, bool is_bcast)
46 {
47 	return 0;
48 }
49 
50 static inline int batadv_bla_tx(struct batadv_priv *bat_priv,
51 				struct sk_buff *skb, short vid)
52 {
53 	return 0;
54 }
55 
56 static inline int batadv_bla_is_backbone_gw(struct sk_buff *skb,
57 					    struct batadv_orig_node *orig_node,
58 					    int hdr_size)
59 {
60 	return 0;
61 }
62 
63 static inline int batadv_bla_claim_table_seq_print_text(struct seq_file *seq,
64 							void *offset)
65 {
66 	return 0;
67 }
68 
69 static inline int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq,
70 							   void *offset)
71 {
72 	return 0;
73 }
74 
75 static inline int batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv,
76 						 uint8_t *orig)
77 {
78 	return 0;
79 }
80 
81 static inline int
82 batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
83 			       struct sk_buff *skb)
84 {
85 	return 0;
86 }
87 
88 static inline void
89 batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
90 			       struct batadv_hard_iface *primary_if,
91 			       struct batadv_hard_iface *oldif)
92 {
93 }
94 
95 static inline int batadv_bla_init(struct batadv_priv *bat_priv)
96 {
97 	return 1;
98 }
99 
100 static inline void batadv_bla_free(struct batadv_priv *bat_priv)
101 {
102 }
103 
104 #endif /* ifdef CONFIG_BATMAN_ADV_BLA */
105 
106 #endif /* ifndef _NET_BATMAN_ADV_BLA_H_ */
107