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186 lines
4.7 KiB
186 lines
4.7 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* Copyright (C) B.A.T.M.A.N. contributors: |
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* |
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* Antonio Quartulli |
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*/ |
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#ifndef _NET_BATMAN_ADV_DISTRIBUTED_ARP_TABLE_H_ |
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#define _NET_BATMAN_ADV_DISTRIBUTED_ARP_TABLE_H_ |
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#include "main.h" |
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#include <linux/compiler.h> |
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#include <linux/netdevice.h> |
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#include <linux/netlink.h> |
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#include <linux/skbuff.h> |
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#include <linux/types.h> |
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#include <uapi/linux/batadv_packet.h> |
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#include "originator.h" |
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#ifdef CONFIG_BATMAN_ADV_DAT |
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/* BATADV_DAT_ADDR_MAX - maximum address value in the DHT space */ |
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#define BATADV_DAT_ADDR_MAX ((batadv_dat_addr_t)~(batadv_dat_addr_t)0) |
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void batadv_dat_status_update(struct net_device *net_dev); |
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bool batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv, |
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struct sk_buff *skb); |
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bool batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv, |
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struct sk_buff *skb, int hdr_size); |
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void batadv_dat_snoop_outgoing_arp_reply(struct batadv_priv *bat_priv, |
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struct sk_buff *skb); |
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bool batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv, |
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struct sk_buff *skb, int hdr_size); |
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void batadv_dat_snoop_outgoing_dhcp_ack(struct batadv_priv *bat_priv, |
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struct sk_buff *skb, |
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__be16 proto, |
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unsigned short vid); |
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void batadv_dat_snoop_incoming_dhcp_ack(struct batadv_priv *bat_priv, |
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struct sk_buff *skb, int hdr_size); |
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bool batadv_dat_drop_broadcast_packet(struct batadv_priv *bat_priv, |
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struct batadv_forw_packet *forw_packet); |
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/** |
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* batadv_dat_init_orig_node_addr() - assign a DAT address to the orig_node |
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* @orig_node: the node to assign the DAT address to |
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*/ |
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static inline void |
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batadv_dat_init_orig_node_addr(struct batadv_orig_node *orig_node) |
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{ |
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u32 addr; |
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addr = batadv_choose_orig(orig_node->orig, BATADV_DAT_ADDR_MAX); |
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orig_node->dat_addr = (batadv_dat_addr_t)addr; |
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} |
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/** |
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* batadv_dat_init_own_addr() - assign a DAT address to the node itself |
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* @bat_priv: the bat priv with all the soft interface information |
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* @primary_if: a pointer to the primary interface |
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*/ |
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static inline void |
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batadv_dat_init_own_addr(struct batadv_priv *bat_priv, |
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struct batadv_hard_iface *primary_if) |
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{ |
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u32 addr; |
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addr = batadv_choose_orig(primary_if->net_dev->dev_addr, |
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BATADV_DAT_ADDR_MAX); |
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bat_priv->dat.addr = (batadv_dat_addr_t)addr; |
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} |
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int batadv_dat_init(struct batadv_priv *bat_priv); |
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void batadv_dat_free(struct batadv_priv *bat_priv); |
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int batadv_dat_cache_dump(struct sk_buff *msg, struct netlink_callback *cb); |
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/** |
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* batadv_dat_inc_counter() - increment the correct DAT packet counter |
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* @bat_priv: the bat priv with all the soft interface information |
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* @subtype: the 4addr subtype of the packet to be counted |
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* |
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* Updates the ethtool statistics for the received packet if it is a DAT subtype |
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*/ |
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static inline void batadv_dat_inc_counter(struct batadv_priv *bat_priv, |
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u8 subtype) |
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{ |
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switch (subtype) { |
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case BATADV_P_DAT_DHT_GET: |
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batadv_inc_counter(bat_priv, |
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BATADV_CNT_DAT_GET_RX); |
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break; |
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case BATADV_P_DAT_DHT_PUT: |
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batadv_inc_counter(bat_priv, |
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BATADV_CNT_DAT_PUT_RX); |
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break; |
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} |
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} |
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#else |
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static inline void batadv_dat_status_update(struct net_device *net_dev) |
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{ |
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} |
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static inline bool |
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batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv, |
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struct sk_buff *skb) |
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{ |
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return false; |
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} |
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static inline bool |
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batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv, |
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struct sk_buff *skb, int hdr_size) |
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{ |
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return false; |
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} |
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static inline bool |
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batadv_dat_snoop_outgoing_arp_reply(struct batadv_priv *bat_priv, |
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struct sk_buff *skb) |
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{ |
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return false; |
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} |
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static inline bool |
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batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv, |
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struct sk_buff *skb, int hdr_size) |
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{ |
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return false; |
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} |
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static inline void |
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batadv_dat_snoop_outgoing_dhcp_ack(struct batadv_priv *bat_priv, |
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struct sk_buff *skb, __be16 proto, |
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unsigned short vid) |
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{ |
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} |
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static inline void |
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batadv_dat_snoop_incoming_dhcp_ack(struct batadv_priv *bat_priv, |
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struct sk_buff *skb, int hdr_size) |
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{ |
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} |
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static inline bool |
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batadv_dat_drop_broadcast_packet(struct batadv_priv *bat_priv, |
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struct batadv_forw_packet *forw_packet) |
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{ |
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return false; |
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} |
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static inline void |
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batadv_dat_init_orig_node_addr(struct batadv_orig_node *orig_node) |
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{ |
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} |
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static inline void batadv_dat_init_own_addr(struct batadv_priv *bat_priv, |
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struct batadv_hard_iface *iface) |
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{ |
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} |
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static inline int batadv_dat_init(struct batadv_priv *bat_priv) |
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{ |
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return 0; |
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} |
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static inline void batadv_dat_free(struct batadv_priv *bat_priv) |
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{ |
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} |
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static inline int |
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batadv_dat_cache_dump(struct sk_buff *msg, struct netlink_callback *cb) |
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{ |
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return -EOPNOTSUPP; |
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} |
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static inline void batadv_dat_inc_counter(struct batadv_priv *bat_priv, |
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u8 subtype) |
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{ |
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} |
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#endif /* CONFIG_BATMAN_ADV_DAT */ |
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#endif /* _NET_BATMAN_ADV_DISTRIBUTED_ARP_TABLE_H_ */
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