projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 0b873931 | 1 | /* Copyright (C) 2007-2013 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 | |
| ebf38fb7 | 15 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
| c6c8fea2 SE |
16 | */ |
| 17 | ||
| 18 | #ifndef _NET_BATMAN_ADV_HARD_INTERFACE_H_ | |
| 19 | #define _NET_BATMAN_ADV_HARD_INTERFACE_H_ | |
| 20 | ||
| e9a4f295 SE |
21 | enum batadv_hard_if_state { |
| 22 | BATADV_IF_NOT_IN_USE, | |
| 23 | BATADV_IF_TO_BE_REMOVED, | |
| 24 | BATADV_IF_INACTIVE, | |
| 25 | BATADV_IF_ACTIVE, | |
| 26 | BATADV_IF_TO_BE_ACTIVATED, | |
| 27 | BATADV_IF_I_WANT_YOU, | |
| e8958dbf | 28 | }; |
| c6c8fea2 | 29 | |
| a15fd361 SE |
30 | /** |
| 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 | |
| 34 | */ | |
| 35 | enum batadv_hard_if_cleanup { | |
| 36 | BATADV_IF_CLEANUP_KEEP, | |
| 37 | BATADV_IF_CLEANUP_AUTO, | |
| 38 | }; | |
| 39 | ||
| 9563877e | 40 | extern struct notifier_block batadv_hard_if_notifier; |
| c6c8fea2 | 41 | |
| 0c69aecc | 42 | bool batadv_is_wifi_netdev(struct net_device *net_device); |
| 56303d34 | 43 | struct batadv_hard_iface* |
| 9563877e | 44 | batadv_hardif_get_by_netdev(const struct net_device *net_dev); |
| 56303d34 | 45 | int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface, |
| 9563877e | 46 | const char *iface_name); |
| a15fd361 SE |
47 | void batadv_hardif_disable_interface(struct batadv_hard_iface *hard_iface, |
| 48 | enum batadv_hard_if_cleanup autodel); | |
| 9563877e SE |
49 | void batadv_hardif_remove_interfaces(void); |
| 50 | int batadv_hardif_min_mtu(struct net_device *soft_iface); | |
| 51 | void batadv_update_min_mtu(struct net_device *soft_iface); | |
| 52 | void batadv_hardif_free_rcu(struct rcu_head *rcu); | |
| c6c8fea2 | 53 | |
| e5d89254 | 54 | static inline void |
| 56303d34 | 55 | batadv_hardif_free_ref(struct batadv_hard_iface *hard_iface) |
| c6c8fea2 | 56 | { |
| e6c10f43 | 57 | if (atomic_dec_and_test(&hard_iface->refcount)) |
| 9563877e | 58 | call_rcu(&hard_iface->rcu, batadv_hardif_free_rcu); |
| c6c8fea2 SE |
59 | } |
| 60 | ||
| 56303d34 SE |
61 | static inline struct batadv_hard_iface * |
| 62 | batadv_primary_if_get_selected(struct batadv_priv *bat_priv) | |
| 32ae9b22 | 63 | { |
| 56303d34 | 64 | struct batadv_hard_iface *hard_iface; |
| 32ae9b22 ML |
65 | |
| 66 | rcu_read_lock(); | |
| 67 | hard_iface = rcu_dereference(bat_priv->primary_if); | |
| 68 | if (!hard_iface) | |
| 69 | goto out; | |
| 70 | ||
| 71 | if (!atomic_inc_not_zero(&hard_iface->refcount)) | |
| 72 | hard_iface = NULL; | |
| 73 | ||
| 74 | out: | |
| 75 | rcu_read_unlock(); | |
| 76 | return hard_iface; | |
| 77 | } | |
| 78 | ||
| c6c8fea2 | 79 | #endif /* _NET_BATMAN_ADV_HARD_INTERFACE_H_ */ |