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785ea114 AQ |
1 | /* Copyright (C) 2011-2012 B.A.T.M.A.N. contributors: |
2 | * | |
3 | * Antonio Quartulli | |
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_ARP_H_ | |
21 | #define _NET_BATMAN_ADV_ARP_H_ | |
22 | ||
17224474 AQ |
23 | #ifdef CONFIG_BATMAN_ADV_DAT |
24 | ||
785ea114 AQ |
25 | #include "types.h" |
26 | #include "originator.h" | |
27 | ||
5c3a0e55 AQ |
28 | #include <linux/if_arp.h> |
29 | ||
785ea114 AQ |
30 | #define BATADV_DAT_ADDR_MAX ((batadv_dat_addr_t)~(batadv_dat_addr_t)0) |
31 | ||
c384ea3e AQ |
32 | bool batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv, |
33 | struct sk_buff *skb); | |
34 | bool batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv, | |
35 | struct sk_buff *skb, int hdr_size); | |
36 | void batadv_dat_snoop_outgoing_arp_reply(struct batadv_priv *bat_priv, | |
37 | struct sk_buff *skb); | |
38 | bool batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv, | |
39 | struct sk_buff *skb, int hdr_size); | |
40 | bool batadv_dat_drop_broadcast_packet(struct batadv_priv *bat_priv, | |
41 | struct batadv_forw_packet *forw_packet); | |
42 | ||
785ea114 AQ |
43 | /** |
44 | * batadv_dat_init_orig_node_addr - assign a DAT address to the orig_node | |
45 | * @orig_node: the node to assign the DAT address to | |
46 | */ | |
47 | static inline void | |
48 | batadv_dat_init_orig_node_addr(struct batadv_orig_node *orig_node) | |
49 | { | |
50 | uint32_t addr; | |
51 | ||
52 | addr = batadv_choose_orig(orig_node->orig, BATADV_DAT_ADDR_MAX); | |
53 | orig_node->dat_addr = (batadv_dat_addr_t)addr; | |
54 | } | |
55 | ||
56 | /** | |
57 | * batadv_dat_init_own_addr - assign a DAT address to the node itself | |
58 | * @bat_priv: the bat priv with all the soft interface information | |
59 | * @primary_if: a pointer to the primary interface | |
60 | */ | |
61 | static inline void | |
62 | batadv_dat_init_own_addr(struct batadv_priv *bat_priv, | |
63 | struct batadv_hard_iface *primary_if) | |
64 | { | |
65 | uint32_t addr; | |
66 | ||
67 | addr = batadv_choose_orig(primary_if->net_dev->dev_addr, | |
68 | BATADV_DAT_ADDR_MAX); | |
69 | ||
70 | bat_priv->dat.addr = (batadv_dat_addr_t)addr; | |
71 | } | |
72 | ||
2f1dfbe1 AQ |
73 | int batadv_dat_init(struct batadv_priv *bat_priv); |
74 | void batadv_dat_free(struct batadv_priv *bat_priv); | |
75 | int batadv_dat_cache_seq_print_text(struct seq_file *seq, void *offset); | |
76 | ||
4046b24a MH |
77 | /** |
78 | * batadv_dat_inc_counter - increment the correct DAT packet counter | |
79 | * @bat_priv: the bat priv with all the soft interface information | |
80 | * @subtype: the 4addr subtype of the packet to be counted | |
81 | * | |
82 | * Updates the ethtool statistics for the received packet if it is a DAT subtype | |
83 | */ | |
84 | static inline void batadv_dat_inc_counter(struct batadv_priv *bat_priv, | |
85 | uint8_t subtype) | |
86 | { | |
87 | switch (subtype) { | |
88 | case BATADV_P_DAT_DHT_GET: | |
89 | batadv_inc_counter(bat_priv, | |
90 | BATADV_CNT_DAT_GET_RX); | |
91 | break; | |
92 | case BATADV_P_DAT_DHT_PUT: | |
93 | batadv_inc_counter(bat_priv, | |
94 | BATADV_CNT_DAT_PUT_RX); | |
95 | break; | |
96 | } | |
97 | } | |
98 | ||
17224474 AQ |
99 | #else |
100 | ||
101 | static inline bool | |
102 | batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv, | |
103 | struct sk_buff *skb) | |
104 | { | |
105 | return false; | |
106 | } | |
107 | ||
108 | static inline bool | |
109 | batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv, | |
110 | struct sk_buff *skb, int hdr_size) | |
111 | { | |
112 | return false; | |
113 | } | |
114 | ||
115 | static inline bool | |
116 | batadv_dat_snoop_outgoing_arp_reply(struct batadv_priv *bat_priv, | |
117 | struct sk_buff *skb) | |
118 | { | |
119 | return false; | |
120 | } | |
121 | ||
122 | static inline bool | |
123 | batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv, | |
124 | struct sk_buff *skb, int hdr_size) | |
125 | { | |
126 | return false; | |
127 | } | |
128 | ||
129 | static inline bool | |
130 | batadv_dat_drop_broadcast_packet(struct batadv_priv *bat_priv, | |
131 | struct batadv_forw_packet *forw_packet) | |
132 | { | |
133 | return false; | |
134 | } | |
135 | ||
136 | static inline void | |
137 | batadv_dat_init_orig_node_addr(struct batadv_orig_node *orig_node) | |
138 | { | |
139 | } | |
140 | ||
141 | static inline void batadv_dat_init_own_addr(struct batadv_priv *bat_priv, | |
142 | struct batadv_hard_iface *iface) | |
143 | { | |
144 | } | |
145 | ||
146 | static inline void batadv_arp_change_timeout(struct net_device *soft_iface, | |
147 | const char *name) | |
148 | { | |
149 | } | |
150 | ||
151 | static inline int batadv_dat_init(struct batadv_priv *bat_priv) | |
152 | { | |
153 | return 0; | |
154 | } | |
155 | ||
156 | static inline void batadv_dat_free(struct batadv_priv *bat_priv) | |
157 | { | |
158 | } | |
159 | ||
4046b24a MH |
160 | static inline void batadv_dat_inc_counter(struct batadv_priv *bat_priv, |
161 | uint8_t subtype) | |
162 | { | |
163 | } | |
164 | ||
17224474 AQ |
165 | #endif /* CONFIG_BATMAN_ADV_DAT */ |
166 | ||
785ea114 | 167 | #endif /* _NET_BATMAN_ADV_ARP_H_ */ |