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96 lines
2.8 KiB
96 lines
2.8 KiB
/* Copyright (C) 2007-2015 B.A.T.M.A.N. contributors: |
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* |
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* Marek Lindner, Simon Wunderlich |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of version 2 of the GNU General Public |
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* License as published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, but |
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* WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, see <http://www.gnu.org/licenses/>. |
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*/ |
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#ifndef _NET_BATMAN_ADV_HARD_INTERFACE_H_ |
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#define _NET_BATMAN_ADV_HARD_INTERFACE_H_ |
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#include "main.h" |
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#include <linux/atomic.h> |
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#include <linux/compiler.h> |
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#include <linux/notifier.h> |
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#include <linux/rcupdate.h> |
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#include <linux/stddef.h> |
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#include <linux/types.h> |
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struct net_device; |
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enum batadv_hard_if_state { |
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BATADV_IF_NOT_IN_USE, |
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BATADV_IF_TO_BE_REMOVED, |
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BATADV_IF_INACTIVE, |
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BATADV_IF_ACTIVE, |
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BATADV_IF_TO_BE_ACTIVATED, |
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BATADV_IF_I_WANT_YOU, |
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}; |
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/** |
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* enum batadv_hard_if_cleanup - Cleanup modi for soft_iface after slave removal |
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* @BATADV_IF_CLEANUP_KEEP: Don't automatically delete soft-interface |
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* @BATADV_IF_CLEANUP_AUTO: Delete soft-interface after last slave was removed |
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*/ |
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enum batadv_hard_if_cleanup { |
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BATADV_IF_CLEANUP_KEEP, |
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BATADV_IF_CLEANUP_AUTO, |
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}; |
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extern struct notifier_block batadv_hard_if_notifier; |
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bool batadv_is_wifi_netdev(struct net_device *net_device); |
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bool batadv_is_wifi_iface(int ifindex); |
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struct batadv_hard_iface* |
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batadv_hardif_get_by_netdev(const struct net_device *net_dev); |
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int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface, |
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const char *iface_name); |
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void batadv_hardif_disable_interface(struct batadv_hard_iface *hard_iface, |
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enum batadv_hard_if_cleanup autodel); |
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void batadv_hardif_remove_interfaces(void); |
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int batadv_hardif_min_mtu(struct net_device *soft_iface); |
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void batadv_update_min_mtu(struct net_device *soft_iface); |
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void batadv_hardif_free_rcu(struct rcu_head *rcu); |
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/** |
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* batadv_hardif_free_ref - decrement the hard interface refcounter and |
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* possibly free it |
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* @hard_iface: the hard interface to free |
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*/ |
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static inline void |
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batadv_hardif_free_ref(struct batadv_hard_iface *hard_iface) |
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{ |
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if (atomic_dec_and_test(&hard_iface->refcount)) |
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call_rcu(&hard_iface->rcu, batadv_hardif_free_rcu); |
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} |
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static inline struct batadv_hard_iface * |
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batadv_primary_if_get_selected(struct batadv_priv *bat_priv) |
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{ |
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struct batadv_hard_iface *hard_iface; |
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rcu_read_lock(); |
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hard_iface = rcu_dereference(bat_priv->primary_if); |
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if (!hard_iface) |
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goto out; |
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if (!atomic_inc_not_zero(&hard_iface->refcount)) |
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hard_iface = NULL; |
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out: |
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rcu_read_unlock(); |
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return hard_iface; |
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} |
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#endif /* _NET_BATMAN_ADV_HARD_INTERFACE_H_ */
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