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Commit | Line | Data |
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7db7d9f3 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
cfa55c6d | 2 | /* Copyright (C) B.A.T.M.A.N. contributors: |
c6c8fea2 SE |
3 | * |
4 | * Marek Lindner, Simon Wunderlich | |
c6c8fea2 SE |
5 | */ |
6 | ||
7 | #ifndef _NET_BATMAN_ADV_HARD_INTERFACE_H_ | |
8 | #define _NET_BATMAN_ADV_HARD_INTERFACE_H_ | |
9 | ||
1e2c2a4f SE |
10 | #include "main.h" |
11 | ||
1e2c2a4f | 12 | #include <linux/compiler.h> |
7a659d56 | 13 | #include <linux/kref.h> |
68a600de | 14 | #include <linux/netdevice.h> |
1e2c2a4f SE |
15 | #include <linux/notifier.h> |
16 | #include <linux/rcupdate.h> | |
17 | #include <linux/stddef.h> | |
18 | #include <linux/types.h> | |
1e2c2a4f | 19 | |
73844a8c SE |
20 | /** |
21 | * enum batadv_hard_if_state - State of a hard interface | |
22 | */ | |
e9a4f295 | 23 | enum batadv_hard_if_state { |
73844a8c SE |
24 | /** |
25 | * @BATADV_IF_NOT_IN_USE: interface is not used as slave interface of a | |
26 | * batman-adv soft interface | |
27 | */ | |
e9a4f295 | 28 | BATADV_IF_NOT_IN_USE, |
73844a8c SE |
29 | |
30 | /** | |
31 | * @BATADV_IF_TO_BE_REMOVED: interface will be removed from soft | |
32 | * interface | |
33 | */ | |
e9a4f295 | 34 | BATADV_IF_TO_BE_REMOVED, |
73844a8c SE |
35 | |
36 | /** @BATADV_IF_INACTIVE: interface is deactivated */ | |
e9a4f295 | 37 | BATADV_IF_INACTIVE, |
73844a8c SE |
38 | |
39 | /** @BATADV_IF_ACTIVE: interface is used */ | |
e9a4f295 | 40 | BATADV_IF_ACTIVE, |
73844a8c SE |
41 | |
42 | /** @BATADV_IF_TO_BE_ACTIVATED: interface is getting activated */ | |
e9a4f295 | 43 | BATADV_IF_TO_BE_ACTIVATED, |
e8958dbf | 44 | }; |
c6c8fea2 | 45 | |
3111beed LL |
46 | /** |
47 | * enum batadv_hard_if_bcast - broadcast avoidance options | |
3111beed LL |
48 | */ |
49 | enum batadv_hard_if_bcast { | |
8b84cc4f | 50 | /** @BATADV_HARDIF_BCAST_OK: Do broadcast on according hard interface */ |
3111beed | 51 | BATADV_HARDIF_BCAST_OK = 0, |
8b84cc4f SE |
52 | |
53 | /** | |
54 | * @BATADV_HARDIF_BCAST_NORECIPIENT: Broadcast not needed, there is no | |
55 | * recipient | |
56 | */ | |
3111beed | 57 | BATADV_HARDIF_BCAST_NORECIPIENT, |
8b84cc4f SE |
58 | |
59 | /** | |
60 | * @BATADV_HARDIF_BCAST_DUPFWD: There is just the neighbor we got it | |
61 | * from | |
62 | */ | |
3111beed | 63 | BATADV_HARDIF_BCAST_DUPFWD, |
8b84cc4f SE |
64 | |
65 | /** @BATADV_HARDIF_BCAST_DUPORIG: There is just the originator */ | |
3111beed LL |
66 | BATADV_HARDIF_BCAST_DUPORIG, |
67 | }; | |
68 | ||
9563877e | 69 | extern struct notifier_block batadv_hard_if_notifier; |
c6c8fea2 | 70 | |
1942de1b | 71 | struct net_device *batadv_get_real_netdev(struct net_device *net_device); |
10b1bbb4 SE |
72 | bool batadv_is_cfg80211_hardif(struct batadv_hard_iface *hard_iface); |
73 | bool batadv_is_wifi_hardif(struct batadv_hard_iface *hard_iface); | |
56303d34 | 74 | struct batadv_hard_iface* |
9563877e | 75 | batadv_hardif_get_by_netdev(const struct net_device *net_dev); |
56303d34 | 76 | int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface, |
fa205602 | 77 | struct net_device *soft_iface); |
a962cb29 | 78 | void batadv_hardif_disable_interface(struct batadv_hard_iface *hard_iface); |
9563877e SE |
79 | int batadv_hardif_min_mtu(struct net_device *soft_iface); |
80 | void batadv_update_min_mtu(struct net_device *soft_iface); | |
7a659d56 | 81 | void batadv_hardif_release(struct kref *ref); |
3111beed LL |
82 | int batadv_hardif_no_broadcast(struct batadv_hard_iface *if_outgoing, |
83 | u8 *orig_addr, u8 *orig_neigh); | |
c6c8fea2 | 84 | |
89652331 | 85 | /** |
7e9a8c2c | 86 | * batadv_hardif_put() - decrement the hard interface refcounter and possibly |
7a659d56 | 87 | * release it |
89652331 SW |
88 | * @hard_iface: the hard interface to free |
89 | */ | |
82047ad7 | 90 | static inline void batadv_hardif_put(struct batadv_hard_iface *hard_iface) |
c6c8fea2 | 91 | { |
6340dcbd SE |
92 | if (!hard_iface) |
93 | return; | |
94 | ||
7a659d56 | 95 | kref_put(&hard_iface->refcount, batadv_hardif_release); |
c6c8fea2 SE |
96 | } |
97 | ||
e57acf8e SE |
98 | /** |
99 | * batadv_primary_if_get_selected() - Get reference to primary interface | |
100 | * @bat_priv: the bat priv with all the soft interface information | |
101 | * | |
102 | * Return: primary interface (with increased refcnt), otherwise NULL | |
103 | */ | |
56303d34 SE |
104 | static inline struct batadv_hard_iface * |
105 | batadv_primary_if_get_selected(struct batadv_priv *bat_priv) | |
32ae9b22 | 106 | { |
56303d34 | 107 | struct batadv_hard_iface *hard_iface; |
32ae9b22 ML |
108 | |
109 | rcu_read_lock(); | |
110 | hard_iface = rcu_dereference(bat_priv->primary_if); | |
111 | if (!hard_iface) | |
112 | goto out; | |
113 | ||
7a659d56 | 114 | if (!kref_get_unless_zero(&hard_iface->refcount)) |
32ae9b22 ML |
115 | hard_iface = NULL; |
116 | ||
117 | out: | |
118 | rcu_read_unlock(); | |
119 | return hard_iface; | |
120 | } | |
121 | ||
c6c8fea2 | 122 | #endif /* _NET_BATMAN_ADV_HARD_INTERFACE_H_ */ |