| /* Copyright (C) 2011-2013 B.A.T.M.A.N. contributors: |
| * |
| * Antonio Quartulli |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of version 2 of the GNU General Public |
| * License as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| #ifndef _NET_BATMAN_ADV_DISTRIBUTED_ARP_TABLE_H_ |
| #define _NET_BATMAN_ADV_DISTRIBUTED_ARP_TABLE_H_ |
| |
| #ifdef CONFIG_BATMAN_ADV_DAT |
| |
| #include "types.h" |
| #include "originator.h" |
| |
| #include <linux/if_arp.h> |
| |
| #define BATADV_DAT_ADDR_MAX ((batadv_dat_addr_t)~(batadv_dat_addr_t)0) |
| |
| void batadv_dat_status_update(struct net_device *net_dev); |
| bool batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv, |
| struct sk_buff *skb); |
| bool batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv, |
| struct sk_buff *skb, int hdr_size); |
| void batadv_dat_snoop_outgoing_arp_reply(struct batadv_priv *bat_priv, |
| struct sk_buff *skb); |
| bool batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv, |
| struct sk_buff *skb, int hdr_size); |
| bool batadv_dat_drop_broadcast_packet(struct batadv_priv *bat_priv, |
| struct batadv_forw_packet *forw_packet); |
| |
| /** |
| * batadv_dat_init_orig_node_addr - assign a DAT address to the orig_node |
| * @orig_node: the node to assign the DAT address to |
| */ |
| static inline void |
| batadv_dat_init_orig_node_addr(struct batadv_orig_node *orig_node) |
| { |
| uint32_t addr; |
| |
| addr = batadv_choose_orig(orig_node->orig, BATADV_DAT_ADDR_MAX); |
| orig_node->dat_addr = (batadv_dat_addr_t)addr; |
| } |
| |
| /** |
| * batadv_dat_init_own_addr - assign a DAT address to the node itself |
| * @bat_priv: the bat priv with all the soft interface information |
| * @primary_if: a pointer to the primary interface |
| */ |
| static inline void |
| batadv_dat_init_own_addr(struct batadv_priv *bat_priv, |
| struct batadv_hard_iface *primary_if) |
| { |
| uint32_t addr; |
| |
| addr = batadv_choose_orig(primary_if->net_dev->dev_addr, |
| BATADV_DAT_ADDR_MAX); |
| |
| bat_priv->dat.addr = (batadv_dat_addr_t)addr; |
| } |
| |
| int batadv_dat_init(struct batadv_priv *bat_priv); |
| void batadv_dat_free(struct batadv_priv *bat_priv); |
| int batadv_dat_cache_seq_print_text(struct seq_file *seq, void *offset); |
| |
| /** |
| * batadv_dat_inc_counter - increment the correct DAT packet counter |
| * @bat_priv: the bat priv with all the soft interface information |
| * @subtype: the 4addr subtype of the packet to be counted |
| * |
| * Updates the ethtool statistics for the received packet if it is a DAT subtype |
| */ |
| static inline void batadv_dat_inc_counter(struct batadv_priv *bat_priv, |
| uint8_t subtype) |
| { |
| switch (subtype) { |
| case BATADV_P_DAT_DHT_GET: |
| batadv_inc_counter(bat_priv, |
| BATADV_CNT_DAT_GET_RX); |
| break; |
| case BATADV_P_DAT_DHT_PUT: |
| batadv_inc_counter(bat_priv, |
| BATADV_CNT_DAT_PUT_RX); |
| break; |
| } |
| } |
| |
| #else |
| |
| static inline void batadv_dat_status_update(struct net_device *net_dev) |
| { |
| } |
| |
| static inline bool |
| batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv, |
| struct sk_buff *skb) |
| { |
| return false; |
| } |
| |
| static inline bool |
| batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv, |
| struct sk_buff *skb, int hdr_size) |
| { |
| return false; |
| } |
| |
| static inline bool |
| batadv_dat_snoop_outgoing_arp_reply(struct batadv_priv *bat_priv, |
| struct sk_buff *skb) |
| { |
| return false; |
| } |
| |
| static inline bool |
| batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv, |
| struct sk_buff *skb, int hdr_size) |
| { |
| return false; |
| } |
| |
| static inline bool |
| batadv_dat_drop_broadcast_packet(struct batadv_priv *bat_priv, |
| struct batadv_forw_packet *forw_packet) |
| { |
| return false; |
| } |
| |
| static inline void |
| batadv_dat_init_orig_node_addr(struct batadv_orig_node *orig_node) |
| { |
| } |
| |
| static inline void batadv_dat_init_own_addr(struct batadv_priv *bat_priv, |
| struct batadv_hard_iface *iface) |
| { |
| } |
| |
| static inline void batadv_arp_change_timeout(struct net_device *soft_iface, |
| const char *name) |
| { |
| } |
| |
| static inline int batadv_dat_init(struct batadv_priv *bat_priv) |
| { |
| return 0; |
| } |
| |
| static inline void batadv_dat_free(struct batadv_priv *bat_priv) |
| { |
| } |
| |
| static inline void batadv_dat_inc_counter(struct batadv_priv *bat_priv, |
| uint8_t subtype) |
| { |
| } |
| |
| #endif /* CONFIG_BATMAN_ADV_DAT */ |
| |
| #endif /* _NET_BATMAN_ADV_DISTRIBUTED_ARP_TABLE_H_ */ |