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9f6446c7 | 1 | /* Copyright (C) 2011-2015 B.A.T.M.A.N. contributors: |
785ea114 AQ |
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 | |
ebf38fb7 | 15 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
785ea114 AQ |
16 | */ |
17 | ||
a48bcacd AQ |
18 | #ifndef _NET_BATMAN_ADV_DISTRIBUTED_ARP_TABLE_H_ |
19 | #define _NET_BATMAN_ADV_DISTRIBUTED_ARP_TABLE_H_ | |
785ea114 | 20 | |
1e2c2a4f SE |
21 | #include "main.h" |
22 | ||
23 | #include <linux/compiler.h> | |
24 | #include <linux/netdevice.h> | |
25 | #include <linux/types.h> | |
17224474 | 26 | |
785ea114 | 27 | #include "originator.h" |
1e2c2a4f | 28 | #include "packet.h" |
785ea114 | 29 | |
1e2c2a4f SE |
30 | struct seq_file; |
31 | struct sk_buff; | |
32 | ||
33 | #ifdef CONFIG_BATMAN_ADV_DAT | |
5c3a0e55 | 34 | |
ba97abb8 | 35 | /* BATADV_DAT_ADDR_MAX - maximum address value in the DHT space */ |
785ea114 AQ |
36 | #define BATADV_DAT_ADDR_MAX ((batadv_dat_addr_t)~(batadv_dat_addr_t)0) |
37 | ||
17cf0ea4 | 38 | void batadv_dat_status_update(struct net_device *net_dev); |
c384ea3e AQ |
39 | bool batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv, |
40 | struct sk_buff *skb); | |
41 | bool batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv, | |
42 | struct sk_buff *skb, int hdr_size); | |
43 | void batadv_dat_snoop_outgoing_arp_reply(struct batadv_priv *bat_priv, | |
44 | struct sk_buff *skb); | |
45 | bool batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv, | |
46 | struct sk_buff *skb, int hdr_size); | |
47 | bool batadv_dat_drop_broadcast_packet(struct batadv_priv *bat_priv, | |
48 | struct batadv_forw_packet *forw_packet); | |
49 | ||
785ea114 AQ |
50 | /** |
51 | * batadv_dat_init_orig_node_addr - assign a DAT address to the orig_node | |
52 | * @orig_node: the node to assign the DAT address to | |
53 | */ | |
54 | static inline void | |
55 | batadv_dat_init_orig_node_addr(struct batadv_orig_node *orig_node) | |
56 | { | |
6b5e971a | 57 | u32 addr; |
785ea114 AQ |
58 | |
59 | addr = batadv_choose_orig(orig_node->orig, BATADV_DAT_ADDR_MAX); | |
60 | orig_node->dat_addr = (batadv_dat_addr_t)addr; | |
61 | } | |
62 | ||
63 | /** | |
64 | * batadv_dat_init_own_addr - assign a DAT address to the node itself | |
65 | * @bat_priv: the bat priv with all the soft interface information | |
66 | * @primary_if: a pointer to the primary interface | |
67 | */ | |
68 | static inline void | |
69 | batadv_dat_init_own_addr(struct batadv_priv *bat_priv, | |
70 | struct batadv_hard_iface *primary_if) | |
71 | { | |
6b5e971a | 72 | u32 addr; |
785ea114 AQ |
73 | |
74 | addr = batadv_choose_orig(primary_if->net_dev->dev_addr, | |
75 | BATADV_DAT_ADDR_MAX); | |
76 | ||
77 | bat_priv->dat.addr = (batadv_dat_addr_t)addr; | |
78 | } | |
79 | ||
2f1dfbe1 AQ |
80 | int batadv_dat_init(struct batadv_priv *bat_priv); |
81 | void batadv_dat_free(struct batadv_priv *bat_priv); | |
82 | int batadv_dat_cache_seq_print_text(struct seq_file *seq, void *offset); | |
83 | ||
4046b24a MH |
84 | /** |
85 | * batadv_dat_inc_counter - increment the correct DAT packet counter | |
86 | * @bat_priv: the bat priv with all the soft interface information | |
87 | * @subtype: the 4addr subtype of the packet to be counted | |
88 | * | |
89 | * Updates the ethtool statistics for the received packet if it is a DAT subtype | |
90 | */ | |
91 | static inline void batadv_dat_inc_counter(struct batadv_priv *bat_priv, | |
6b5e971a | 92 | u8 subtype) |
4046b24a MH |
93 | { |
94 | switch (subtype) { | |
95 | case BATADV_P_DAT_DHT_GET: | |
96 | batadv_inc_counter(bat_priv, | |
97 | BATADV_CNT_DAT_GET_RX); | |
98 | break; | |
99 | case BATADV_P_DAT_DHT_PUT: | |
100 | batadv_inc_counter(bat_priv, | |
101 | BATADV_CNT_DAT_PUT_RX); | |
102 | break; | |
103 | } | |
104 | } | |
105 | ||
17224474 AQ |
106 | #else |
107 | ||
17cf0ea4 ML |
108 | static inline void batadv_dat_status_update(struct net_device *net_dev) |
109 | { | |
110 | } | |
111 | ||
17224474 AQ |
112 | static inline bool |
113 | batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv, | |
114 | struct sk_buff *skb) | |
115 | { | |
116 | return false; | |
117 | } | |
118 | ||
119 | static inline bool | |
120 | batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv, | |
121 | struct sk_buff *skb, int hdr_size) | |
122 | { | |
123 | return false; | |
124 | } | |
125 | ||
126 | static inline bool | |
127 | batadv_dat_snoop_outgoing_arp_reply(struct batadv_priv *bat_priv, | |
128 | struct sk_buff *skb) | |
129 | { | |
130 | return false; | |
131 | } | |
132 | ||
133 | static inline bool | |
134 | batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv, | |
135 | struct sk_buff *skb, int hdr_size) | |
136 | { | |
137 | return false; | |
138 | } | |
139 | ||
140 | static inline bool | |
141 | batadv_dat_drop_broadcast_packet(struct batadv_priv *bat_priv, | |
142 | struct batadv_forw_packet *forw_packet) | |
143 | { | |
144 | return false; | |
145 | } | |
146 | ||
147 | static inline void | |
148 | batadv_dat_init_orig_node_addr(struct batadv_orig_node *orig_node) | |
149 | { | |
150 | } | |
151 | ||
152 | static inline void batadv_dat_init_own_addr(struct batadv_priv *bat_priv, | |
153 | struct batadv_hard_iface *iface) | |
154 | { | |
155 | } | |
156 | ||
157 | static inline void batadv_arp_change_timeout(struct net_device *soft_iface, | |
158 | const char *name) | |
159 | { | |
160 | } | |
161 | ||
162 | static inline int batadv_dat_init(struct batadv_priv *bat_priv) | |
163 | { | |
164 | return 0; | |
165 | } | |
166 | ||
167 | static inline void batadv_dat_free(struct batadv_priv *bat_priv) | |
168 | { | |
169 | } | |
170 | ||
4046b24a | 171 | static inline void batadv_dat_inc_counter(struct batadv_priv *bat_priv, |
6b5e971a | 172 | u8 subtype) |
4046b24a MH |
173 | { |
174 | } | |
175 | ||
17224474 AQ |
176 | #endif /* CONFIG_BATMAN_ADV_DAT */ |
177 | ||
a48bcacd | 178 | #endif /* _NET_BATMAN_ADV_DISTRIBUTED_ARP_TABLE_H_ */ |