projects / deliverable / linux.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 | ||
| e9a4f295 SE |
23 | enum batadv_hard_if_state { |
| 24 | BATADV_IF_NOT_IN_USE, | |
| 25 | BATADV_IF_TO_BE_REMOVED, | |
| 26 | BATADV_IF_INACTIVE, | |
| 27 | BATADV_IF_ACTIVE, | |
| 28 | BATADV_IF_TO_BE_ACTIVATED, | |
| 29 | BATADV_IF_I_WANT_YOU, | |
| e8958dbf | 30 | }; |
| c6c8fea2 | 31 | |
| 9563877e | 32 | extern struct notifier_block batadv_hard_if_notifier; |
| c6c8fea2 | 33 | |
| 56303d34 | 34 | struct batadv_hard_iface* |
| 9563877e | 35 | batadv_hardif_get_by_netdev(const struct net_device *net_dev); |
| 56303d34 | 36 | int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface, |
| 9563877e | 37 | const char *iface_name); |
| 56303d34 | 38 | void batadv_hardif_disable_interface(struct batadv_hard_iface *hard_iface); |
| 9563877e SE |
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 | |
| e5d89254 | 45 | static inline void |
| 56303d34 | 46 | batadv_hardif_free_ref(struct batadv_hard_iface *hard_iface) |
| c6c8fea2 | 47 | { |
| e6c10f43 | 48 | if (atomic_dec_and_test(&hard_iface->refcount)) |
| 9563877e | 49 | call_rcu(&hard_iface->rcu, batadv_hardif_free_rcu); |
| c6c8fea2 SE |
50 | } |
| 51 | ||
| 56303d34 SE |
52 | static inline struct batadv_hard_iface * |
| 53 | batadv_primary_if_get_selected(struct batadv_priv *bat_priv) | |
| 32ae9b22 | 54 | { |
| 56303d34 | 55 | struct batadv_hard_iface *hard_iface; |
| 32ae9b22 ML |
56 | |
| 57 | rcu_read_lock(); | |
| 58 | hard_iface = rcu_dereference(bat_priv->primary_if); | |
| 59 | if (!hard_iface) | |
| 60 | goto out; | |
| 61 | ||
| 62 | if (!atomic_inc_not_zero(&hard_iface->refcount)) | |
| 63 | hard_iface = NULL; | |
| 64 | ||
| 65 | out: | |
| 66 | rcu_read_unlock(); | |
| 67 | return hard_iface; | |
| 68 | } | |
| 69 | ||
| c6c8fea2 | 70 | #endif /* _NET_BATMAN_ADV_HARD_INTERFACE_H_ */ |