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cfa55c6d47
The batman-adv source code was using the year of publication (to net-next) as "last" year for the copyright statement. The whole source code mentioned in the MAINTAINERS "BATMAN ADVANCED" section was handled as a single entity regarding the publishing year. This avoided having outdated (in sense of year information - not copyright holder) publishing information inside several files. But since the simple "update copyright year" commit (without other changes) in the file was not well received in the upstream kernel, the option to not have a copyright year (for initial and last publication) in the files are chosen instead. More detailed information about the years can still be retrieved from the SCM system. Signed-off-by: Sven Eckelmann <sven@narfation.org> Acked-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
187 lines
4.7 KiB
C
187 lines
4.7 KiB
C
/* 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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