1 /* Copyright (C) 2007-2014 B.A.T.M.A.N. contributors:
3 * Marek Lindner, Simon Wunderlich
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of version 2 of the GNU General Public
7 * License as published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, see <http://www.gnu.org/licenses/>.
18 #ifndef _NET_BATMAN_ADV_HARD_INTERFACE_H_
19 #define _NET_BATMAN_ADV_HARD_INTERFACE_H_
21 enum batadv_hard_if_state {
23 BATADV_IF_TO_BE_REMOVED,
26 BATADV_IF_TO_BE_ACTIVATED,
31 * enum batadv_hard_if_cleanup - Cleanup modi for soft_iface after slave removal
32 * @BATADV_IF_CLEANUP_KEEP: Don't automatically delete soft-interface
33 * @BATADV_IF_CLEANUP_AUTO: Delete soft-interface after last slave was removed
35 enum batadv_hard_if_cleanup {
36 BATADV_IF_CLEANUP_KEEP,
37 BATADV_IF_CLEANUP_AUTO,
40 extern struct notifier_block batadv_hard_if_notifier;
42 bool batadv_is_wifi_netdev(struct net_device *net_device);
43 bool batadv_is_wifi_iface(int ifindex);
44 struct batadv_hard_iface*
45 batadv_hardif_get_by_netdev(const struct net_device *net_dev);
46 int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface,
47 const char *iface_name);
48 void batadv_hardif_disable_interface(struct batadv_hard_iface *hard_iface,
49 enum batadv_hard_if_cleanup autodel);
50 void batadv_hardif_remove_interfaces(void);
51 int batadv_hardif_min_mtu(struct net_device *soft_iface);
52 void batadv_update_min_mtu(struct net_device *soft_iface);
53 void batadv_hardif_free_rcu(struct rcu_head *rcu);
56 * batadv_hardif_free_ref - decrement the hard interface refcounter and
58 * @hard_iface: the hard interface to free
61 batadv_hardif_free_ref(struct batadv_hard_iface *hard_iface)
63 if (atomic_dec_and_test(&hard_iface->refcount))
64 call_rcu(&hard_iface->rcu, batadv_hardif_free_rcu);
68 * batadv_hardif_free_ref_now - decrement the hard interface refcounter and
69 * possibly free it (without rcu callback)
70 * @hard_iface: the hard interface to free
73 batadv_hardif_free_ref_now(struct batadv_hard_iface *hard_iface)
75 if (atomic_dec_and_test(&hard_iface->refcount))
76 batadv_hardif_free_rcu(&hard_iface->rcu);
79 static inline struct batadv_hard_iface *
80 batadv_primary_if_get_selected(struct batadv_priv *bat_priv)
82 struct batadv_hard_iface *hard_iface;
85 hard_iface = rcu_dereference(bat_priv->primary_if);
89 if (!atomic_inc_not_zero(&hard_iface->refcount))
97 #endif /* _NET_BATMAN_ADV_HARD_INTERFACE_H_ */