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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_ */ |