batman-adv: network coding - code and transmit packets if possible

[mirror_ubuntu-hirsute-kernel.git] / net / batman-adv / network-coding.h

/* Copyright (C) 2012-2013 B.A.T.M.A.N. contributors:
 *
 * Martin Hundebøll, Jeppe Ledet-Pedersen
 *
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA
 */

#ifndef _NET_BATMAN_ADV_NETWORK_CODING_H_
#define _NET_BATMAN_ADV_NETWORK_CODING_H_

#ifdef CONFIG_BATMAN_ADV_NC

int batadv_nc_init(struct batadv_priv *bat_priv);
void batadv_nc_free(struct batadv_priv *bat_priv);
void batadv_nc_update_nc_node(struct batadv_priv *bat_priv,
			      struct batadv_orig_node *orig_node,
			      struct batadv_orig_node *orig_neigh_node,
			      struct batadv_ogm_packet *ogm_packet,
			      int is_single_hop_neigh);
void batadv_nc_purge_orig(struct batadv_priv *bat_priv,
			  struct batadv_orig_node *orig_node,
			  bool (*to_purge)(struct batadv_priv *,
					   struct batadv_nc_node *));
void batadv_nc_init_bat_priv(struct batadv_priv *bat_priv);
void batadv_nc_init_orig(struct batadv_orig_node *orig_node);
bool batadv_nc_skb_forward(struct sk_buff *skb,
			   struct batadv_neigh_node *neigh_node,
			   struct ethhdr *ethhdr);
int batadv_nc_nodes_seq_print_text(struct seq_file *seq, void *offset);
int batadv_nc_init_debugfs(struct batadv_priv *bat_priv);

#else /* ifdef CONFIG_BATMAN_ADV_NC */

static inline int batadv_nc_init(struct batadv_priv *bat_priv)
{
	return 0;
}

static inline void batadv_nc_free(struct batadv_priv *bat_priv)
{
	return;
}

static inline void
batadv_nc_update_nc_node(struct batadv_priv *bat_priv,
			 struct batadv_orig_node *orig_node,
			 struct batadv_orig_node *orig_neigh_node,
			 struct batadv_ogm_packet *ogm_packet,
			 int is_single_hop_neigh)
{
	return;
}

static inline void
batadv_nc_purge_orig(struct batadv_priv *bat_priv,
		     struct batadv_orig_node *orig_node,
		     bool (*to_purge)(struct batadv_priv *,
				      struct batadv_nc_node *))
{
	return;
}

static inline void batadv_nc_init_bat_priv(struct batadv_priv *bat_priv)
{
	return;
}

static inline void batadv_nc_init_orig(struct batadv_orig_node *orig_node)
{
	return;
}

static inline bool batadv_nc_skb_forward(struct sk_buff *skb,
					 struct batadv_neigh_node *neigh_node,
					 struct ethhdr *ethhdr)
{
	return false;
}

static inline int batadv_nc_nodes_seq_print_text(struct seq_file *seq,
						 void *offset)
{
	return 0;
}

static inline int batadv_nc_init_debugfs(struct batadv_priv *bat_priv)
{
	return 0;
}

#endif /* ifdef CONFIG_BATMAN_ADV_NC */

#endif /* _NET_BATMAN_ADV_NETWORK_CODING_H_ */