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/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2011-2018 B.A.T.M.A.N. contributors:
*
* Simon Wunderlich
*
* 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_BLA_H_
#define _NET_BATMAN_ADV_BLA_H_
#include "main.h"
#include <linux/compiler.h>
#include <linux/stddef.h>
#include <linux/types.h>
struct net_device;
struct netlink_callback;
struct seq_file;
struct sk_buff;
/**
* batadv_bla_is_loopdetect_mac() - check if the mac address is from a loop
* detect frame sent by bridge loop avoidance
* @mac: mac address to check
*
* Return: true if the it looks like a loop detect frame
* (mac starts with BA:BE), false otherwise
*/
static inline bool batadv_bla_is_loopdetect_mac(const uint8_t *mac)
{
if (mac[0] == 0xba && mac[1] == 0xbe)
return true;
return false;
}
#ifdef CONFIG_BATMAN_ADV_BLA
bool batadv_bla_rx(struct batadv_priv *bat_priv, struct sk_buff *skb,
unsigned short vid, bool is_bcast);
bool batadv_bla_tx(struct batadv_priv *bat_priv, struct sk_buff *skb,
unsigned short vid);
bool batadv_bla_is_backbone_gw(struct sk_buff *skb,
struct batadv_orig_node *orig_node,
int hdr_size);
int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, void *offset);
int batadv_bla_claim_dump(struct sk_buff *msg, struct netlink_callback *cb);
int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq,
void *offset);
int batadv_bla_backbone_dump(struct sk_buff *msg, struct netlink_callback *cb);
bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, u8 *orig,
unsigned short vid);
bool batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
struct sk_buff *skb);
void batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
struct batadv_hard_iface *primary_if,
struct batadv_hard_iface *oldif);
void batadv_bla_status_update(struct net_device *net_dev);
int batadv_bla_init(struct batadv_priv *bat_priv);
void batadv_bla_free(struct batadv_priv *bat_priv);
int batadv_bla_claim_dump(struct sk_buff *msg, struct netlink_callback *cb);
#ifdef CONFIG_BATMAN_ADV_DAT
bool batadv_bla_check_claim(struct batadv_priv *bat_priv, u8 *addr,
unsigned short vid);
#endif
#define BATADV_BLA_CRC_INIT 0
#else /* ifdef CONFIG_BATMAN_ADV_BLA */
static inline bool batadv_bla_rx(struct batadv_priv *bat_priv,
struct sk_buff *skb, unsigned short vid,
bool is_bcast)
{
return false;
}
static inline bool batadv_bla_tx(struct batadv_priv *bat_priv,
struct sk_buff *skb, unsigned short vid)
{
return false;
}
static inline bool batadv_bla_is_backbone_gw(struct sk_buff *skb,
struct batadv_orig_node *orig_node,
int hdr_size)
{
return false;
}
static inline int batadv_bla_claim_table_seq_print_text(struct seq_file *seq,
void *offset)
{
return 0;
}
static inline int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq,
void *offset)
{
return 0;
}
static inline bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv,
u8 *orig, unsigned short vid)
{
return false;
}
static inline bool
batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
struct sk_buff *skb)
{
return false;
}
static inline void
batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
struct batadv_hard_iface *primary_if,
struct batadv_hard_iface *oldif)
{
}
static inline int batadv_bla_init(struct batadv_priv *bat_priv)
{
return 1;
}
static inline void batadv_bla_free(struct batadv_priv *bat_priv)
{
}
static inline int batadv_bla_claim_dump(struct sk_buff *msg,
struct netlink_callback *cb)
{
return -EOPNOTSUPP;
}
static inline int batadv_bla_backbone_dump(struct sk_buff *msg,
struct netlink_callback *cb)
{
return -EOPNOTSUPP;
}
static inline
bool batadv_bla_check_claim(struct batadv_priv *bat_priv, u8 *addr,
unsigned short vid)
{
return true;
}
#endif /* ifdef CONFIG_BATMAN_ADV_BLA */
#endif /* ifndef _NET_BATMAN_ADV_BLA_H_ */
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