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0b873931 | 1 | /* Copyright (C) 2011-2013 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 | |
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 | ||
17cf0ea4 | 32 | void batadv_dat_status_update(struct net_device *net_dev); |
c384ea3e AQ |
33 | bool batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv, |
34 | struct sk_buff *skb); | |
35 | bool batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv, | |
36 | struct sk_buff *skb, int hdr_size); | |
37 | void batadv_dat_snoop_outgoing_arp_reply(struct batadv_priv *bat_priv, | |
38 | struct sk_buff *skb); | |
39 | bool batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv, | |
40 | struct sk_buff *skb, int hdr_size); | |
41 | bool batadv_dat_drop_broadcast_packet(struct batadv_priv *bat_priv, | |
42 | struct batadv_forw_packet *forw_packet); | |
43 | ||
785ea114 AQ |
44 | /** |
45 | * batadv_dat_init_orig_node_addr - assign a DAT address to the orig_node | |
46 | * @orig_node: the node to assign the DAT address to | |
47 | */ | |
48 | static inline void | |
49 | batadv_dat_init_orig_node_addr(struct batadv_orig_node *orig_node) | |
50 | { | |
51 | uint32_t addr; | |
52 | ||
53 | addr = batadv_choose_orig(orig_node->orig, BATADV_DAT_ADDR_MAX); | |
54 | orig_node->dat_addr = (batadv_dat_addr_t)addr; | |
55 | } | |
56 | ||
57 | /** | |
58 | * batadv_dat_init_own_addr - assign a DAT address to the node itself | |
59 | * @bat_priv: the bat priv with all the soft interface information | |
60 | * @primary_if: a pointer to the primary interface | |
61 | */ | |
62 | static inline void | |
63 | batadv_dat_init_own_addr(struct batadv_priv *bat_priv, | |
64 | struct batadv_hard_iface *primary_if) | |
65 | { | |
66 | uint32_t addr; | |
67 | ||
68 | addr = batadv_choose_orig(primary_if->net_dev->dev_addr, | |
69 | BATADV_DAT_ADDR_MAX); | |
70 | ||
71 | bat_priv->dat.addr = (batadv_dat_addr_t)addr; | |
72 | } | |
73 | ||
2f1dfbe1 AQ |
74 | int batadv_dat_init(struct batadv_priv *bat_priv); |
75 | void batadv_dat_free(struct batadv_priv *bat_priv); | |
76 | int batadv_dat_cache_seq_print_text(struct seq_file *seq, void *offset); | |
77 | ||
4046b24a MH |
78 | /** |
79 | * batadv_dat_inc_counter - increment the correct DAT packet counter | |
80 | * @bat_priv: the bat priv with all the soft interface information | |
81 | * @subtype: the 4addr subtype of the packet to be counted | |
82 | * | |
83 | * Updates the ethtool statistics for the received packet if it is a DAT subtype | |
84 | */ | |
85 | static inline void batadv_dat_inc_counter(struct batadv_priv *bat_priv, | |
86 | uint8_t subtype) | |
87 | { | |
88 | switch (subtype) { | |
89 | case BATADV_P_DAT_DHT_GET: | |
90 | batadv_inc_counter(bat_priv, | |
91 | BATADV_CNT_DAT_GET_RX); | |
92 | break; | |
93 | case BATADV_P_DAT_DHT_PUT: | |
94 | batadv_inc_counter(bat_priv, | |
95 | BATADV_CNT_DAT_PUT_RX); | |
96 | break; | |
97 | } | |
98 | } | |
99 | ||
17224474 AQ |
100 | #else |
101 | ||
17cf0ea4 ML |
102 | static inline void batadv_dat_status_update(struct net_device *net_dev) |
103 | { | |
104 | } | |
105 | ||
17224474 AQ |
106 | static inline bool |
107 | batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv, | |
108 | struct sk_buff *skb) | |
109 | { | |
110 | return false; | |
111 | } | |
112 | ||
113 | static inline bool | |
114 | batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv, | |
115 | struct sk_buff *skb, int hdr_size) | |
116 | { | |
117 | return false; | |
118 | } | |
119 | ||
120 | static inline bool | |
121 | batadv_dat_snoop_outgoing_arp_reply(struct batadv_priv *bat_priv, | |
122 | struct sk_buff *skb) | |
123 | { | |
124 | return false; | |
125 | } | |
126 | ||
127 | static inline bool | |
128 | batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv, | |
129 | struct sk_buff *skb, int hdr_size) | |
130 | { | |
131 | return false; | |
132 | } | |
133 | ||
134 | static inline bool | |
135 | batadv_dat_drop_broadcast_packet(struct batadv_priv *bat_priv, | |
136 | struct batadv_forw_packet *forw_packet) | |
137 | { | |
138 | return false; | |
139 | } | |
140 | ||
141 | static inline void | |
142 | batadv_dat_init_orig_node_addr(struct batadv_orig_node *orig_node) | |
143 | { | |
144 | } | |
145 | ||
146 | static inline void batadv_dat_init_own_addr(struct batadv_priv *bat_priv, | |
147 | struct batadv_hard_iface *iface) | |
148 | { | |
149 | } | |
150 | ||
151 | static inline void batadv_arp_change_timeout(struct net_device *soft_iface, | |
152 | const char *name) | |
153 | { | |
154 | } | |
155 | ||
156 | static inline int batadv_dat_init(struct batadv_priv *bat_priv) | |
157 | { | |
158 | return 0; | |
159 | } | |
160 | ||
161 | static inline void batadv_dat_free(struct batadv_priv *bat_priv) | |
162 | { | |
163 | } | |
164 | ||
4046b24a MH |
165 | static inline void batadv_dat_inc_counter(struct batadv_priv *bat_priv, |
166 | uint8_t subtype) | |
167 | { | |
168 | } | |
169 | ||
17224474 AQ |
170 | #endif /* CONFIG_BATMAN_ADV_DAT */ |
171 | ||
785ea114 | 172 | #endif /* _NET_BATMAN_ADV_ARP_H_ */ |