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7#ifndef _NET_BATMAN_ADV_DISTRIBUTED_ARP_TABLE_H_
8#define _NET_BATMAN_ADV_DISTRIBUTED_ARP_TABLE_H_
9
10#include "main.h"
11
12#include <linux/compiler.h>
13#include <linux/netdevice.h>
14#include <linux/netlink.h>
15#include <linux/skbuff.h>
16#include <linux/types.h>
17#include <uapi/linux/batadv_packet.h>
18
19#include "originator.h"
20
21#ifdef CONFIG_BATMAN_ADV_DAT
22
23
24#define BATADV_DAT_ADDR_MAX ((batadv_dat_addr_t)~(batadv_dat_addr_t)0)
25
26void batadv_dat_status_update(struct net_device *net_dev);
27bool batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv,
28 struct sk_buff *skb);
29bool batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv,
30 struct sk_buff *skb, int hdr_size);
31void batadv_dat_snoop_outgoing_arp_reply(struct batadv_priv *bat_priv,
32 struct sk_buff *skb);
33bool batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv,
34 struct sk_buff *skb, int hdr_size);
35void batadv_dat_snoop_outgoing_dhcp_ack(struct batadv_priv *bat_priv,
36 struct sk_buff *skb,
37 __be16 proto,
38 unsigned short vid);
39void batadv_dat_snoop_incoming_dhcp_ack(struct batadv_priv *bat_priv,
40 struct sk_buff *skb, int hdr_size);
41bool batadv_dat_drop_broadcast_packet(struct batadv_priv *bat_priv,
42 struct batadv_forw_packet *forw_packet);
43
44
45
46
47
48static inline void
49batadv_dat_init_orig_node_addr(struct batadv_orig_node *orig_node)
50{
51 u32 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}
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61
62static inline void
63batadv_dat_init_own_addr(struct batadv_priv *bat_priv,
64 struct batadv_hard_iface *primary_if)
65{
66 u32 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
74int batadv_dat_init(struct batadv_priv *bat_priv);
75void batadv_dat_free(struct batadv_priv *bat_priv);
76int batadv_dat_cache_dump(struct sk_buff *msg, struct netlink_callback *cb);
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83
84
85static inline void batadv_dat_inc_counter(struct batadv_priv *bat_priv,
86 u8 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
100#else
101
102static inline void batadv_dat_status_update(struct net_device *net_dev)
103{
104}
105
106static inline bool
107batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv,
108 struct sk_buff *skb)
109{
110 return false;
111}
112
113static inline bool
114batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv,
115 struct sk_buff *skb, int hdr_size)
116{
117 return false;
118}
119
120static inline bool
121batadv_dat_snoop_outgoing_arp_reply(struct batadv_priv *bat_priv,
122 struct sk_buff *skb)
123{
124 return false;
125}
126
127static inline bool
128batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv,
129 struct sk_buff *skb, int hdr_size)
130{
131 return false;
132}
133
134static inline void
135batadv_dat_snoop_outgoing_dhcp_ack(struct batadv_priv *bat_priv,
136 struct sk_buff *skb, __be16 proto,
137 unsigned short vid)
138{
139}
140
141static inline void
142batadv_dat_snoop_incoming_dhcp_ack(struct batadv_priv *bat_priv,
143 struct sk_buff *skb, int hdr_size)
144{
145}
146
147static inline bool
148batadv_dat_drop_broadcast_packet(struct batadv_priv *bat_priv,
149 struct batadv_forw_packet *forw_packet)
150{
151 return false;
152}
153
154static inline void
155batadv_dat_init_orig_node_addr(struct batadv_orig_node *orig_node)
156{
157}
158
159static inline void batadv_dat_init_own_addr(struct batadv_priv *bat_priv,
160 struct batadv_hard_iface *iface)
161{
162}
163
164static inline int batadv_dat_init(struct batadv_priv *bat_priv)
165{
166 return 0;
167}
168
169static inline void batadv_dat_free(struct batadv_priv *bat_priv)
170{
171}
172
173static inline int
174batadv_dat_cache_dump(struct sk_buff *msg, struct netlink_callback *cb)
175{
176 return -EOPNOTSUPP;
177}
178
179static inline void batadv_dat_inc_counter(struct batadv_priv *bat_priv,
180 u8 subtype)
181{
182}
183
184#endif
185
186#endif
187