projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 9cfc7bd6 | 1 | /* Copyright (C) 2007-2012 B.A.T.M.A.N. contributors: |
| c6c8fea2 SE |
2 | * |
| 3 | * Marek Lindner, Simon Wunderlich | |
| 4 | * | |
| 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. | |
| 8 | * | |
| 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. | |
| 13 | * | |
| 14 | * You should have received a copy of the GNU General Public License | |
| 15 | * along with this program; if not, write to the Free Software | |
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | |
| 17 | * 02110-1301, USA | |
| c6c8fea2 SE |
18 | */ |
| 19 | ||
| 20 | #ifndef _NET_BATMAN_ADV_HARD_INTERFACE_H_ | |
| 21 | #define _NET_BATMAN_ADV_HARD_INTERFACE_H_ | |
| 22 | ||
| e8958dbf SE |
23 | enum hard_if_state { |
| 24 | IF_NOT_IN_USE, | |
| 25 | IF_TO_BE_REMOVED, | |
| 26 | IF_INACTIVE, | |
| 27 | IF_ACTIVE, | |
| 28 | IF_TO_BE_ACTIVATED, | |
| 29 | IF_I_WANT_YOU | |
| 30 | }; | |
| c6c8fea2 | 31 | |
| 9563877e | 32 | extern struct notifier_block batadv_hard_if_notifier; |
| c6c8fea2 | 33 | |
| 747e4221 | 34 | struct hard_iface* |
| 9563877e SE |
35 | batadv_hardif_get_by_netdev(const struct net_device *net_dev); |
| 36 | int batadv_hardif_enable_interface(struct hard_iface *hard_iface, | |
| 37 | const char *iface_name); | |
| 38 | void batadv_hardif_disable_interface(struct hard_iface *hard_iface); | |
| 39 | void batadv_hardif_remove_interfaces(void); | |
| 40 | int batadv_hardif_min_mtu(struct net_device *soft_iface); | |
| 41 | void batadv_update_min_mtu(struct net_device *soft_iface); | |
| 42 | void batadv_hardif_free_rcu(struct rcu_head *rcu); | |
| 43 | bool batadv_is_wifi_iface(int ifindex); | |
| c6c8fea2 | 44 | |
| e6c10f43 | 45 | static inline void hardif_free_ref(struct hard_iface *hard_iface) |
| c6c8fea2 | 46 | { |
| e6c10f43 | 47 | if (atomic_dec_and_test(&hard_iface->refcount)) |
| 9563877e | 48 | call_rcu(&hard_iface->rcu, batadv_hardif_free_rcu); |
| c6c8fea2 SE |
49 | } |
| 50 | ||
| 32ae9b22 ML |
51 | static inline struct hard_iface *primary_if_get_selected( |
| 52 | struct bat_priv *bat_priv) | |
| 53 | { | |
| 54 | struct hard_iface *hard_iface; | |
| 55 | ||
| 56 | rcu_read_lock(); | |
| 57 | hard_iface = rcu_dereference(bat_priv->primary_if); | |
| 58 | if (!hard_iface) | |
| 59 | goto out; | |
| 60 | ||
| 61 | if (!atomic_inc_not_zero(&hard_iface->refcount)) | |
| 62 | hard_iface = NULL; | |
| 63 | ||
| 64 | out: | |
| 65 | rcu_read_unlock(); | |
| 66 | return hard_iface; | |
| 67 | } | |
| 68 | ||
| c6c8fea2 | 69 | #endif /* _NET_BATMAN_ADV_HARD_INTERFACE_H_ */ |