/* Copyright (C) 2011-2017  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);
#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;
}

#endif /* ifdef CONFIG_BATMAN_ADV_BLA */

#endif /* ifndef _NET_BATMAN_ADV_BLA_H_ */
tion></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-12-04 12:50:51 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-12-04 12:50:51 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&amp;id=3e5de27e940d00d8d504dfb96625fb654f641509'>3e5de27e940d00d8d504dfb96625fb654f641509</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net?id=3e5de27e940d00d8d504dfb96625fb654f641509'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=3e5de27e940d00d8d504dfb96625fb654f641509'>b38dbbb5c36de40798435623d8db8736d9a26bb0</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net?h=nds-private-remove&amp;id=3e5de27e940d00d8d504dfb96625fb654f641509'>net</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&amp;id=0cb65c83304a341b9d09678448d7c8b550689531'>0cb65c83304a341b9d09678448d7c8b550689531</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net?h=nds-private-remove&amp;id=3e5de27e940d00d8d504dfb96625fb654f641509&amp;id2=0cb65c83304a341b9d09678448d7c8b550689531'>diff</a>)</td></tr></table>
<div class='commit-subject'>Linux 4.9-rc8</div><div class='commit-msg'></div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=3e5de27e940d00d8d504dfb96625fb654f641509'>Diffstat</a> (limited to 'net')</div><table summary='diffstat' class='diffstat'>