1 /* Copyright (C) 2011-2013 B.A.T.M.A.N. contributors:
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.
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.
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
20 #ifndef _NET_BATMAN_ADV_DISTRIBUTED_ARP_TABLE_H_
21 #define _NET_BATMAN_ADV_DISTRIBUTED_ARP_TABLE_H_
23 #ifdef CONFIG_BATMAN_ADV_DAT
26 #include "originator.h"
28 #include <linux/if_arp.h>
30 #define BATADV_DAT_ADDR_MAX ((batadv_dat_addr_t)~(batadv_dat_addr_t)0)
32 void batadv_dat_status_update(struct net_device *net_dev);
33 bool batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv,
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,
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);
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
49 batadv_dat_init_orig_node_addr(struct batadv_orig_node *orig_node)
53 addr = batadv_choose_orig(orig_node->orig, BATADV_DAT_ADDR_MAX);
54 orig_node->dat_addr = (batadv_dat_addr_t)addr;
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
63 batadv_dat_init_own_addr(struct batadv_priv *bat_priv,
64 struct batadv_hard_iface *primary_if)
68 addr = batadv_choose_orig(primary_if->net_dev->dev_addr,
71 bat_priv->dat.addr = (batadv_dat_addr_t)addr;
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);
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
83 * Updates the ethtool statistics for the received packet if it is a DAT subtype
85 static inline void batadv_dat_inc_counter(struct batadv_priv *bat_priv,
89 case BATADV_P_DAT_DHT_GET:
90 batadv_inc_counter(bat_priv,
91 BATADV_CNT_DAT_GET_RX);
93 case BATADV_P_DAT_DHT_PUT:
94 batadv_inc_counter(bat_priv,
95 BATADV_CNT_DAT_PUT_RX);
102 static inline void batadv_dat_status_update(struct net_device *net_dev)
107 batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv,
114 batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv,
115 struct sk_buff *skb, int hdr_size)
121 batadv_dat_snoop_outgoing_arp_reply(struct batadv_priv *bat_priv,
128 batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv,
129 struct sk_buff *skb, int hdr_size)
135 batadv_dat_drop_broadcast_packet(struct batadv_priv *bat_priv,
136 struct batadv_forw_packet *forw_packet)
142 batadv_dat_init_orig_node_addr(struct batadv_orig_node *orig_node)
146 static inline void batadv_dat_init_own_addr(struct batadv_priv *bat_priv,
147 struct batadv_hard_iface *iface)
151 static inline void batadv_arp_change_timeout(struct net_device *soft_iface,
156 static inline int batadv_dat_init(struct batadv_priv *bat_priv)
161 static inline void batadv_dat_free(struct batadv_priv *bat_priv)
165 static inline void batadv_dat_inc_counter(struct batadv_priv *bat_priv,
170 #endif /* CONFIG_BATMAN_ADV_DAT */
172 #endif /* _NET_BATMAN_ADV_DISTRIBUTED_ARP_TABLE_H_ */