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ac79cbb9 | 1 | /* Copyright (C) 2011-2017 B.A.T.M.A.N. contributors: |
23721387 SW |
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 | |
ebf38fb7 | 15 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
23721387 SW |
16 | */ |
17 | ||
18 | #ifndef _NET_BATMAN_ADV_BLA_H_ | |
19 | #define _NET_BATMAN_ADV_BLA_H_ | |
20 | ||
1e2c2a4f SE |
21 | #include "main.h" |
22 | ||
d3e9768a SW |
23 | #include <linux/compiler.h> |
24 | #include <linux/stddef.h> | |
1e2c2a4f SE |
25 | #include <linux/types.h> |
26 | ||
d68081a2 | 27 | struct net_device; |
04f3f5bf | 28 | struct netlink_callback; |
1e2c2a4f SE |
29 | struct seq_file; |
30 | struct sk_buff; | |
31 | ||
d3e9768a SW |
32 | /** |
33 | * batadv_bla_is_loopdetect_mac - check if the mac address is from a loop detect | |
34 | * frame sent by bridge loop avoidance | |
35 | * @mac: mac address to check | |
36 | * | |
37 | * Return: true if the it looks like a loop detect frame | |
38 | * (mac starts with BA:BE), false otherwise | |
39 | */ | |
40 | static inline bool batadv_bla_is_loopdetect_mac(const uint8_t *mac) | |
41 | { | |
42 | if (mac[0] == 0xba && mac[1] == 0xbe) | |
43 | return true; | |
44 | ||
45 | return false; | |
46 | } | |
47 | ||
7a5cc242 | 48 | #ifdef CONFIG_BATMAN_ADV_BLA |
4b426b10 SE |
49 | bool batadv_bla_rx(struct batadv_priv *bat_priv, struct sk_buff *skb, |
50 | unsigned short vid, bool is_bcast); | |
51 | bool batadv_bla_tx(struct batadv_priv *bat_priv, struct sk_buff *skb, | |
52 | unsigned short vid); | |
53 | bool batadv_bla_is_backbone_gw(struct sk_buff *skb, | |
54 | struct batadv_orig_node *orig_node, | |
55 | int hdr_size); | |
08adf151 | 56 | int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, void *offset); |
04f3f5bf | 57 | int batadv_bla_claim_dump(struct sk_buff *msg, struct netlink_callback *cb); |
536a23f1 SW |
58 | int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq, |
59 | void *offset); | |
ea4152e1 | 60 | int batadv_bla_backbone_dump(struct sk_buff *msg, struct netlink_callback *cb); |
6b5e971a | 61 | bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, u8 *orig, |
cfd4f757 | 62 | unsigned short vid); |
4b426b10 SE |
63 | bool batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv, |
64 | struct sk_buff *skb); | |
56303d34 SE |
65 | void batadv_bla_update_orig_address(struct batadv_priv *bat_priv, |
66 | struct batadv_hard_iface *primary_if, | |
67 | struct batadv_hard_iface *oldif); | |
d68081a2 | 68 | void batadv_bla_status_update(struct net_device *net_dev); |
56303d34 SE |
69 | int batadv_bla_init(struct batadv_priv *bat_priv); |
70 | void batadv_bla_free(struct batadv_priv *bat_priv); | |
04f3f5bf | 71 | int batadv_bla_claim_dump(struct sk_buff *msg, struct netlink_callback *cb); |
00311de5 AP |
72 | #ifdef CONFIG_BATMAN_ADV_DAT |
73 | bool batadv_bla_check_claim(struct batadv_priv *bat_priv, u8 *addr, | |
74 | unsigned short vid); | |
75 | #endif | |
3964f728 | 76 | #define BATADV_BLA_CRC_INIT 0 |
7a5cc242 SW |
77 | #else /* ifdef CONFIG_BATMAN_ADV_BLA */ |
78 | ||
4b426b10 SE |
79 | static inline bool batadv_bla_rx(struct batadv_priv *bat_priv, |
80 | struct sk_buff *skb, unsigned short vid, | |
81 | bool is_bcast) | |
7a5cc242 | 82 | { |
4b426b10 | 83 | return false; |
7a5cc242 SW |
84 | } |
85 | ||
4b426b10 SE |
86 | static inline bool batadv_bla_tx(struct batadv_priv *bat_priv, |
87 | struct sk_buff *skb, unsigned short vid) | |
7a5cc242 | 88 | { |
4b426b10 | 89 | return false; |
7a5cc242 SW |
90 | } |
91 | ||
4b426b10 SE |
92 | static inline bool batadv_bla_is_backbone_gw(struct sk_buff *skb, |
93 | struct batadv_orig_node *orig_node, | |
94 | int hdr_size) | |
7a5cc242 | 95 | { |
4b426b10 | 96 | return false; |
7a5cc242 SW |
97 | } |
98 | ||
08adf151 SE |
99 | static inline int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, |
100 | void *offset) | |
7a5cc242 SW |
101 | { |
102 | return 0; | |
103 | } | |
104 | ||
536a23f1 SW |
105 | static inline int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq, |
106 | void *offset) | |
107 | { | |
108 | return 0; | |
109 | } | |
110 | ||
cfd4f757 | 111 | static inline bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, |
6b5e971a | 112 | u8 *orig, unsigned short vid) |
7a5cc242 | 113 | { |
cfd4f757 | 114 | return false; |
7a5cc242 SW |
115 | } |
116 | ||
4b426b10 | 117 | static inline bool |
56303d34 | 118 | batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv, |
004e86fc | 119 | struct sk_buff *skb) |
7a5cc242 | 120 | { |
4b426b10 | 121 | return false; |
7a5cc242 SW |
122 | } |
123 | ||
08adf151 | 124 | static inline void |
56303d34 SE |
125 | batadv_bla_update_orig_address(struct batadv_priv *bat_priv, |
126 | struct batadv_hard_iface *primary_if, | |
127 | struct batadv_hard_iface *oldif) | |
7a5cc242 SW |
128 | { |
129 | } | |
130 | ||
56303d34 | 131 | static inline int batadv_bla_init(struct batadv_priv *bat_priv) |
7a5cc242 SW |
132 | { |
133 | return 1; | |
134 | } | |
135 | ||
56303d34 | 136 | static inline void batadv_bla_free(struct batadv_priv *bat_priv) |
7a5cc242 SW |
137 | { |
138 | } | |
139 | ||
04f3f5bf AL |
140 | static inline int batadv_bla_claim_dump(struct sk_buff *msg, |
141 | struct netlink_callback *cb) | |
142 | { | |
143 | return -EOPNOTSUPP; | |
144 | } | |
145 | ||
ea4152e1 SW |
146 | static inline int batadv_bla_backbone_dump(struct sk_buff *msg, |
147 | struct netlink_callback *cb) | |
148 | { | |
149 | return -EOPNOTSUPP; | |
150 | } | |
151 | ||
00311de5 AP |
152 | static inline |
153 | bool batadv_bla_check_claim(struct batadv_priv *bat_priv, u8 *addr, | |
154 | unsigned short vid) | |
155 | { | |
156 | return true; | |
157 | } | |
158 | ||
7a5cc242 | 159 | #endif /* ifdef CONFIG_BATMAN_ADV_BLA */ |
23721387 SW |
160 | |
161 | #endif /* ifndef _NET_BATMAN_ADV_BLA_H_ */ |