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ac79cbb9 | 1 | /* Copyright (C) 2007-2017 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 | ||
1e2c2a4f SE |
21 | #include "main.h" |
22 | ||
1e2c2a4f | 23 | #include <linux/compiler.h> |
7a659d56 | 24 | #include <linux/kref.h> |
1e2c2a4f SE |
25 | #include <linux/notifier.h> |
26 | #include <linux/rcupdate.h> | |
27 | #include <linux/stddef.h> | |
28 | #include <linux/types.h> | |
29 | ||
30 | struct net_device; | |
2cd45a06 | 31 | struct net; |
1e2c2a4f | 32 | |
e9a4f295 SE |
33 | enum batadv_hard_if_state { |
34 | BATADV_IF_NOT_IN_USE, | |
35 | BATADV_IF_TO_BE_REMOVED, | |
36 | BATADV_IF_INACTIVE, | |
37 | BATADV_IF_ACTIVE, | |
38 | BATADV_IF_TO_BE_ACTIVATED, | |
39 | BATADV_IF_I_WANT_YOU, | |
e8958dbf | 40 | }; |
c6c8fea2 | 41 | |
3111beed LL |
42 | /** |
43 | * enum batadv_hard_if_bcast - broadcast avoidance options | |
44 | * @BATADV_HARDIF_BCAST_OK: Do broadcast on according hard interface | |
45 | * @BATADV_HARDIF_BCAST_NORECIPIENT: Broadcast not needed, there is no recipient | |
46 | * @BATADV_HARDIF_BCAST_DUPFWD: There is just the neighbor we got it from | |
47 | * @BATADV_HARDIF_BCAST_DUPORIG: There is just the originator | |
48 | */ | |
49 | enum batadv_hard_if_bcast { | |
50 | BATADV_HARDIF_BCAST_OK = 0, | |
51 | BATADV_HARDIF_BCAST_NORECIPIENT, | |
52 | BATADV_HARDIF_BCAST_DUPFWD, | |
53 | BATADV_HARDIF_BCAST_DUPORIG, | |
54 | }; | |
55 | ||
a15fd361 SE |
56 | /** |
57 | * enum batadv_hard_if_cleanup - Cleanup modi for soft_iface after slave removal | |
58 | * @BATADV_IF_CLEANUP_KEEP: Don't automatically delete soft-interface | |
59 | * @BATADV_IF_CLEANUP_AUTO: Delete soft-interface after last slave was removed | |
60 | */ | |
61 | enum batadv_hard_if_cleanup { | |
62 | BATADV_IF_CLEANUP_KEEP, | |
63 | BATADV_IF_CLEANUP_AUTO, | |
64 | }; | |
65 | ||
9563877e | 66 | extern struct notifier_block batadv_hard_if_notifier; |
c6c8fea2 | 67 | |
1942de1b | 68 | struct net_device *batadv_get_real_netdev(struct net_device *net_device); |
10b1bbb4 SE |
69 | bool batadv_is_cfg80211_hardif(struct batadv_hard_iface *hard_iface); |
70 | bool batadv_is_wifi_hardif(struct batadv_hard_iface *hard_iface); | |
56303d34 | 71 | struct batadv_hard_iface* |
9563877e | 72 | batadv_hardif_get_by_netdev(const struct net_device *net_dev); |
56303d34 | 73 | int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface, |
2cd45a06 | 74 | struct net *net, const char *iface_name); |
a15fd361 SE |
75 | void batadv_hardif_disable_interface(struct batadv_hard_iface *hard_iface, |
76 | enum batadv_hard_if_cleanup autodel); | |
9563877e SE |
77 | void batadv_hardif_remove_interfaces(void); |
78 | int batadv_hardif_min_mtu(struct net_device *soft_iface); | |
79 | void batadv_update_min_mtu(struct net_device *soft_iface); | |
7a659d56 | 80 | void batadv_hardif_release(struct kref *ref); |
3111beed LL |
81 | int batadv_hardif_no_broadcast(struct batadv_hard_iface *if_outgoing, |
82 | u8 *orig_addr, u8 *orig_neigh); | |
c6c8fea2 | 83 | |
89652331 | 84 | /** |
82047ad7 | 85 | * batadv_hardif_put - decrement the hard interface refcounter and possibly |
7a659d56 | 86 | * release it |
89652331 SW |
87 | * @hard_iface: the hard interface to free |
88 | */ | |
82047ad7 | 89 | static inline void batadv_hardif_put(struct batadv_hard_iface *hard_iface) |
c6c8fea2 | 90 | { |
7a659d56 | 91 | kref_put(&hard_iface->refcount, batadv_hardif_release); |
c6c8fea2 SE |
92 | } |
93 | ||
56303d34 SE |
94 | static inline struct batadv_hard_iface * |
95 | batadv_primary_if_get_selected(struct batadv_priv *bat_priv) | |
32ae9b22 | 96 | { |
56303d34 | 97 | struct batadv_hard_iface *hard_iface; |
32ae9b22 ML |
98 | |
99 | rcu_read_lock(); | |
100 | hard_iface = rcu_dereference(bat_priv->primary_if); | |
101 | if (!hard_iface) | |
102 | goto out; | |
103 | ||
7a659d56 | 104 | if (!kref_get_unless_zero(&hard_iface->refcount)) |
32ae9b22 ML |
105 | hard_iface = NULL; |
106 | ||
107 | out: | |
108 | rcu_read_unlock(); | |
109 | return hard_iface; | |
110 | } | |
111 | ||
c6c8fea2 | 112 | #endif /* _NET_BATMAN_ADV_HARD_INTERFACE_H_ */ |