1 /* Copyright (C) 2011-2017 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, see <http://www.gnu.org/licenses/>.
18 #ifndef _NET_BATMAN_ADV_DISTRIBUTED_ARP_TABLE_H_
19 #define _NET_BATMAN_ADV_DISTRIBUTED_ARP_TABLE_H_
23 #include <linux/compiler.h>
24 #include <linux/netdevice.h>
25 #include <linux/types.h>
27 #include "originator.h"
33 #ifdef CONFIG_BATMAN_ADV_DAT
35 /* BATADV_DAT_ADDR_MAX - maximum address value in the DHT space */
36 #define BATADV_DAT_ADDR_MAX ((batadv_dat_addr_t)~(batadv_dat_addr_t)0)
38 void batadv_dat_status_update(struct net_device *net_dev);
39 bool batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv,
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,
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);
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
55 batadv_dat_init_orig_node_addr(struct batadv_orig_node *orig_node)
59 addr = batadv_choose_orig(orig_node->orig, BATADV_DAT_ADDR_MAX);
60 orig_node->dat_addr = (batadv_dat_addr_t)addr;
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
69 batadv_dat_init_own_addr(struct batadv_priv *bat_priv,
70 struct batadv_hard_iface *primary_if)
74 addr = batadv_choose_orig(primary_if->net_dev->dev_addr,
77 bat_priv->dat.addr = (batadv_dat_addr_t)addr;
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);
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
89 * Updates the ethtool statistics for the received packet if it is a DAT subtype
91 static inline void batadv_dat_inc_counter(struct batadv_priv *bat_priv,
95 case BATADV_P_DAT_DHT_GET:
96 batadv_inc_counter(bat_priv,
97 BATADV_CNT_DAT_GET_RX);
99 case BATADV_P_DAT_DHT_PUT:
100 batadv_inc_counter(bat_priv,
101 BATADV_CNT_DAT_PUT_RX);
108 static inline void batadv_dat_status_update(struct net_device *net_dev)
113 batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv,
120 batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv,
121 struct sk_buff *skb, int hdr_size)
127 batadv_dat_snoop_outgoing_arp_reply(struct batadv_priv *bat_priv,
134 batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv,
135 struct sk_buff *skb, int hdr_size)
141 batadv_dat_drop_broadcast_packet(struct batadv_priv *bat_priv,
142 struct batadv_forw_packet *forw_packet)
148 batadv_dat_init_orig_node_addr(struct batadv_orig_node *orig_node)
152 static inline void batadv_dat_init_own_addr(struct batadv_priv *bat_priv,
153 struct batadv_hard_iface *iface)
157 static inline void batadv_arp_change_timeout(struct net_device *soft_iface,
162 static inline int batadv_dat_init(struct batadv_priv *bat_priv)
167 static inline void batadv_dat_free(struct batadv_priv *bat_priv)
171 static inline void batadv_dat_inc_counter(struct batadv_priv *bat_priv,
176 #endif /* CONFIG_BATMAN_ADV_DAT */
178 #endif /* _NET_BATMAN_ADV_DISTRIBUTED_ARP_TABLE_H_ */