e19f9759ed
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
98 lines
3.0 KiB
C
98 lines
3.0 KiB
C
/* Copyright (C) 2007-2014 B.A.T.M.A.N. contributors:
|
|
*
|
|
* Marek Lindner, 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_HARD_INTERFACE_H_
|
|
#define _NET_BATMAN_ADV_HARD_INTERFACE_H_
|
|
|
|
enum batadv_hard_if_state {
|
|
BATADV_IF_NOT_IN_USE,
|
|
BATADV_IF_TO_BE_REMOVED,
|
|
BATADV_IF_INACTIVE,
|
|
BATADV_IF_ACTIVE,
|
|
BATADV_IF_TO_BE_ACTIVATED,
|
|
BATADV_IF_I_WANT_YOU,
|
|
};
|
|
|
|
/**
|
|
* enum batadv_hard_if_cleanup - Cleanup modi for soft_iface after slave removal
|
|
* @BATADV_IF_CLEANUP_KEEP: Don't automatically delete soft-interface
|
|
* @BATADV_IF_CLEANUP_AUTO: Delete soft-interface after last slave was removed
|
|
*/
|
|
enum batadv_hard_if_cleanup {
|
|
BATADV_IF_CLEANUP_KEEP,
|
|
BATADV_IF_CLEANUP_AUTO,
|
|
};
|
|
|
|
extern struct notifier_block batadv_hard_if_notifier;
|
|
|
|
bool batadv_is_wifi_netdev(struct net_device *net_device);
|
|
bool batadv_is_wifi_iface(int ifindex);
|
|
struct batadv_hard_iface*
|
|
batadv_hardif_get_by_netdev(const struct net_device *net_dev);
|
|
int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface,
|
|
const char *iface_name);
|
|
void batadv_hardif_disable_interface(struct batadv_hard_iface *hard_iface,
|
|
enum batadv_hard_if_cleanup autodel);
|
|
void batadv_hardif_remove_interfaces(void);
|
|
int batadv_hardif_min_mtu(struct net_device *soft_iface);
|
|
void batadv_update_min_mtu(struct net_device *soft_iface);
|
|
void batadv_hardif_free_rcu(struct rcu_head *rcu);
|
|
|
|
/**
|
|
* batadv_hardif_free_ref - decrement the hard interface refcounter and
|
|
* possibly free it
|
|
* @hard_iface: the hard interface to free
|
|
*/
|
|
static inline void
|
|
batadv_hardif_free_ref(struct batadv_hard_iface *hard_iface)
|
|
{
|
|
if (atomic_dec_and_test(&hard_iface->refcount))
|
|
call_rcu(&hard_iface->rcu, batadv_hardif_free_rcu);
|
|
}
|
|
|
|
/**
|
|
* batadv_hardif_free_ref_now - decrement the hard interface refcounter and
|
|
* possibly free it (without rcu callback)
|
|
* @hard_iface: the hard interface to free
|
|
*/
|
|
static inline void
|
|
batadv_hardif_free_ref_now(struct batadv_hard_iface *hard_iface)
|
|
{
|
|
if (atomic_dec_and_test(&hard_iface->refcount))
|
|
batadv_hardif_free_rcu(&hard_iface->rcu);
|
|
}
|
|
|
|
static inline struct batadv_hard_iface *
|
|
batadv_primary_if_get_selected(struct batadv_priv *bat_priv)
|
|
{
|
|
struct batadv_hard_iface *hard_iface;
|
|
|
|
rcu_read_lock();
|
|
hard_iface = rcu_dereference(bat_priv->primary_if);
|
|
if (!hard_iface)
|
|
goto out;
|
|
|
|
if (!atomic_inc_not_zero(&hard_iface->refcount))
|
|
hard_iface = NULL;
|
|
|
|
out:
|
|
rcu_read_unlock();
|
|
return hard_iface;
|
|
}
|
|
|
|
#endif /* _NET_BATMAN_ADV_HARD_INTERFACE_H_ */
|