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e19f9759 | 1 | /* Copyright (C) 2011-2014 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 | |
17224474 AQ |
21 | #ifdef CONFIG_BATMAN_ADV_DAT |
22 | ||
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23 | #include "types.h" |
24 | #include "originator.h" | |
25 | ||
5c3a0e55 AQ |
26 | #include <linux/if_arp.h> |
27 | ||
785ea114 AQ |
28 | #define BATADV_DAT_ADDR_MAX ((batadv_dat_addr_t)~(batadv_dat_addr_t)0) |
29 | ||
17cf0ea4 | 30 | void batadv_dat_status_update(struct net_device *net_dev); |
c384ea3e AQ |
31 | bool batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv, |
32 | struct sk_buff *skb); | |
33 | bool batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv, | |
34 | struct sk_buff *skb, int hdr_size); | |
35 | void batadv_dat_snoop_outgoing_arp_reply(struct batadv_priv *bat_priv, | |
36 | struct sk_buff *skb); | |
37 | bool batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv, | |
38 | struct sk_buff *skb, int hdr_size); | |
39 | bool batadv_dat_drop_broadcast_packet(struct batadv_priv *bat_priv, | |
40 | struct batadv_forw_packet *forw_packet); | |
41 | ||
785ea114 AQ |
42 | /** |
43 | * batadv_dat_init_orig_node_addr - assign a DAT address to the orig_node | |
44 | * @orig_node: the node to assign the DAT address to | |
45 | */ | |
46 | static inline void | |
47 | batadv_dat_init_orig_node_addr(struct batadv_orig_node *orig_node) | |
48 | { | |
49 | uint32_t addr; | |
50 | ||
51 | addr = batadv_choose_orig(orig_node->orig, BATADV_DAT_ADDR_MAX); | |
52 | orig_node->dat_addr = (batadv_dat_addr_t)addr; | |
53 | } | |
54 | ||
55 | /** | |
56 | * batadv_dat_init_own_addr - assign a DAT address to the node itself | |
57 | * @bat_priv: the bat priv with all the soft interface information | |
58 | * @primary_if: a pointer to the primary interface | |
59 | */ | |
60 | static inline void | |
61 | batadv_dat_init_own_addr(struct batadv_priv *bat_priv, | |
62 | struct batadv_hard_iface *primary_if) | |
63 | { | |
64 | uint32_t addr; | |
65 | ||
66 | addr = batadv_choose_orig(primary_if->net_dev->dev_addr, | |
67 | BATADV_DAT_ADDR_MAX); | |
68 | ||
69 | bat_priv->dat.addr = (batadv_dat_addr_t)addr; | |
70 | } | |
71 | ||
2f1dfbe1 AQ |
72 | int batadv_dat_init(struct batadv_priv *bat_priv); |
73 | void batadv_dat_free(struct batadv_priv *bat_priv); | |
74 | int batadv_dat_cache_seq_print_text(struct seq_file *seq, void *offset); | |
75 | ||
4046b24a MH |
76 | /** |
77 | * batadv_dat_inc_counter - increment the correct DAT packet counter | |
78 | * @bat_priv: the bat priv with all the soft interface information | |
79 | * @subtype: the 4addr subtype of the packet to be counted | |
80 | * | |
81 | * Updates the ethtool statistics for the received packet if it is a DAT subtype | |
82 | */ | |
83 | static inline void batadv_dat_inc_counter(struct batadv_priv *bat_priv, | |
84 | uint8_t subtype) | |
85 | { | |
86 | switch (subtype) { | |
87 | case BATADV_P_DAT_DHT_GET: | |
88 | batadv_inc_counter(bat_priv, | |
89 | BATADV_CNT_DAT_GET_RX); | |
90 | break; | |
91 | case BATADV_P_DAT_DHT_PUT: | |
92 | batadv_inc_counter(bat_priv, | |
93 | BATADV_CNT_DAT_PUT_RX); | |
94 | break; | |
95 | } | |
96 | } | |
97 | ||
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98 | #else |
99 | ||
17cf0ea4 ML |
100 | static inline void batadv_dat_status_update(struct net_device *net_dev) |
101 | { | |
102 | } | |
103 | ||
17224474 AQ |
104 | static inline bool |
105 | batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv, | |
106 | struct sk_buff *skb) | |
107 | { | |
108 | return false; | |
109 | } | |
110 | ||
111 | static inline bool | |
112 | batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv, | |
113 | struct sk_buff *skb, int hdr_size) | |
114 | { | |
115 | return false; | |
116 | } | |
117 | ||
118 | static inline bool | |
119 | batadv_dat_snoop_outgoing_arp_reply(struct batadv_priv *bat_priv, | |
120 | struct sk_buff *skb) | |
121 | { | |
122 | return false; | |
123 | } | |
124 | ||
125 | static inline bool | |
126 | batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv, | |
127 | struct sk_buff *skb, int hdr_size) | |
128 | { | |
129 | return false; | |
130 | } | |
131 | ||
132 | static inline bool | |
133 | batadv_dat_drop_broadcast_packet(struct batadv_priv *bat_priv, | |
134 | struct batadv_forw_packet *forw_packet) | |
135 | { | |
136 | return false; | |
137 | } | |
138 | ||
139 | static inline void | |
140 | batadv_dat_init_orig_node_addr(struct batadv_orig_node *orig_node) | |
141 | { | |
142 | } | |
143 | ||
144 | static inline void batadv_dat_init_own_addr(struct batadv_priv *bat_priv, | |
145 | struct batadv_hard_iface *iface) | |
146 | { | |
147 | } | |
148 | ||
149 | static inline void batadv_arp_change_timeout(struct net_device *soft_iface, | |
150 | const char *name) | |
151 | { | |
152 | } | |
153 | ||
154 | static inline int batadv_dat_init(struct batadv_priv *bat_priv) | |
155 | { | |
156 | return 0; | |
157 | } | |
158 | ||
159 | static inline void batadv_dat_free(struct batadv_priv *bat_priv) | |
160 | { | |
161 | } | |
162 | ||
4046b24a MH |
163 | static inline void batadv_dat_inc_counter(struct batadv_priv *bat_priv, |
164 | uint8_t subtype) | |
165 | { | |
166 | } | |
167 | ||
17224474 AQ |
168 | #endif /* CONFIG_BATMAN_ADV_DAT */ |
169 | ||
a48bcacd | 170 | #endif /* _NET_BATMAN_ADV_DISTRIBUTED_ARP_TABLE_H_ */ |