151 lines
4.2 KiB
C
151 lines
4.2 KiB
C
/* Copyright (C) 2011-2017 B.A.T.M.A.N. contributors:
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*
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* Simon Wunderlich
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of version 2 of the GNU General Public
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* License as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _NET_BATMAN_ADV_BLA_H_
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#define _NET_BATMAN_ADV_BLA_H_
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#include "main.h"
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#include <linux/compiler.h>
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#include <linux/stddef.h>
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#include <linux/types.h>
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struct net_device;
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struct netlink_callback;
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struct seq_file;
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struct sk_buff;
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/**
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* batadv_bla_is_loopdetect_mac - check if the mac address is from a loop detect
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* frame sent by bridge loop avoidance
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* @mac: mac address to check
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*
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* Return: true if the it looks like a loop detect frame
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* (mac starts with BA:BE), false otherwise
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*/
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static inline bool batadv_bla_is_loopdetect_mac(const uint8_t *mac)
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{
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if (mac[0] == 0xba && mac[1] == 0xbe)
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return true;
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return false;
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}
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#ifdef CONFIG_BATMAN_ADV_BLA
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bool batadv_bla_rx(struct batadv_priv *bat_priv, struct sk_buff *skb,
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unsigned short vid, bool is_bcast);
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bool batadv_bla_tx(struct batadv_priv *bat_priv, struct sk_buff *skb,
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unsigned short vid);
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bool batadv_bla_is_backbone_gw(struct sk_buff *skb,
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struct batadv_orig_node *orig_node,
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int hdr_size);
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int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, void *offset);
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int batadv_bla_claim_dump(struct sk_buff *msg, struct netlink_callback *cb);
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int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq,
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void *offset);
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int batadv_bla_backbone_dump(struct sk_buff *msg, struct netlink_callback *cb);
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bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, u8 *orig,
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unsigned short vid);
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bool batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
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struct sk_buff *skb);
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void batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
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struct batadv_hard_iface *primary_if,
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struct batadv_hard_iface *oldif);
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void batadv_bla_status_update(struct net_device *net_dev);
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int batadv_bla_init(struct batadv_priv *bat_priv);
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void batadv_bla_free(struct batadv_priv *bat_priv);
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int batadv_bla_claim_dump(struct sk_buff *msg, struct netlink_callback *cb);
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#define BATADV_BLA_CRC_INIT 0
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#else /* ifdef CONFIG_BATMAN_ADV_BLA */
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static inline bool batadv_bla_rx(struct batadv_priv *bat_priv,
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struct sk_buff *skb, unsigned short vid,
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bool is_bcast)
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{
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return false;
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}
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static inline bool batadv_bla_tx(struct batadv_priv *bat_priv,
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struct sk_buff *skb, unsigned short vid)
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{
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return false;
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}
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static inline bool batadv_bla_is_backbone_gw(struct sk_buff *skb,
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struct batadv_orig_node *orig_node,
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int hdr_size)
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{
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return false;
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}
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static inline int batadv_bla_claim_table_seq_print_text(struct seq_file *seq,
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void *offset)
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{
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return 0;
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}
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static inline int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq,
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void *offset)
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{
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return 0;
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}
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static inline bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv,
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u8 *orig, unsigned short vid)
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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_bla_check_bcast_duplist(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 void
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batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
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struct batadv_hard_iface *primary_if,
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struct batadv_hard_iface *oldif)
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{
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}
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static inline int batadv_bla_init(struct batadv_priv *bat_priv)
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{
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return 1;
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}
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static inline void batadv_bla_free(struct batadv_priv *bat_priv)
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{
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}
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static inline int batadv_bla_claim_dump(struct sk_buff *msg,
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struct netlink_callback *cb)
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{
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return -EOPNOTSUPP;
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}
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static inline int batadv_bla_backbone_dump(struct sk_buff *msg,
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struct netlink_callback *cb)
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{
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return -EOPNOTSUPP;
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}
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#endif /* ifdef CONFIG_BATMAN_ADV_BLA */
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#endif /* ifndef _NET_BATMAN_ADV_BLA_H_ */
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