Commit | Line | Data |
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7db7d9f3 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
7a79d717 | 2 | /* Copyright (C) 2007-2019 B.A.T.M.A.N. contributors: |
c6c8fea2 SE |
3 | * |
4 | * Marek Lindner, Simon Wunderlich | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of version 2 of the GNU General Public | |
8 | * License as published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but | |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
ebf38fb7 | 16 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
c6c8fea2 SE |
17 | */ |
18 | ||
19 | #ifndef _NET_BATMAN_ADV_HARD_INTERFACE_H_ | |
20 | #define _NET_BATMAN_ADV_HARD_INTERFACE_H_ | |
21 | ||
1e2c2a4f SE |
22 | #include "main.h" |
23 | ||
1e2c2a4f | 24 | #include <linux/compiler.h> |
7a659d56 | 25 | #include <linux/kref.h> |
1e2c2a4f SE |
26 | #include <linux/notifier.h> |
27 | #include <linux/rcupdate.h> | |
28 | #include <linux/stddef.h> | |
29 | #include <linux/types.h> | |
30 | ||
31 | struct net_device; | |
2cd45a06 | 32 | struct net; |
1e2c2a4f | 33 | |
73844a8c SE |
34 | /** |
35 | * enum batadv_hard_if_state - State of a hard interface | |
36 | */ | |
e9a4f295 | 37 | enum batadv_hard_if_state { |
73844a8c SE |
38 | /** |
39 | * @BATADV_IF_NOT_IN_USE: interface is not used as slave interface of a | |
40 | * batman-adv soft interface | |
41 | */ | |
e9a4f295 | 42 | BATADV_IF_NOT_IN_USE, |
73844a8c SE |
43 | |
44 | /** | |
45 | * @BATADV_IF_TO_BE_REMOVED: interface will be removed from soft | |
46 | * interface | |
47 | */ | |
e9a4f295 | 48 | BATADV_IF_TO_BE_REMOVED, |
73844a8c SE |
49 | |
50 | /** @BATADV_IF_INACTIVE: interface is deactivated */ | |
e9a4f295 | 51 | BATADV_IF_INACTIVE, |
73844a8c SE |
52 | |
53 | /** @BATADV_IF_ACTIVE: interface is used */ | |
e9a4f295 | 54 | BATADV_IF_ACTIVE, |
73844a8c SE |
55 | |
56 | /** @BATADV_IF_TO_BE_ACTIVATED: interface is getting activated */ | |
e9a4f295 | 57 | BATADV_IF_TO_BE_ACTIVATED, |
73844a8c SE |
58 | |
59 | /** | |
60 | * @BATADV_IF_I_WANT_YOU: interface is queued up (using sysfs) for being | |
61 | * added as slave interface of a batman-adv soft interface | |
62 | */ | |
e9a4f295 | 63 | BATADV_IF_I_WANT_YOU, |
e8958dbf | 64 | }; |
c6c8fea2 | 65 | |
3111beed LL |
66 | /** |
67 | * enum batadv_hard_if_bcast - broadcast avoidance options | |
3111beed LL |
68 | */ |
69 | enum batadv_hard_if_bcast { | |
8b84cc4f | 70 | /** @BATADV_HARDIF_BCAST_OK: Do broadcast on according hard interface */ |
3111beed | 71 | BATADV_HARDIF_BCAST_OK = 0, |
8b84cc4f SE |
72 | |
73 | /** | |
74 | * @BATADV_HARDIF_BCAST_NORECIPIENT: Broadcast not needed, there is no | |
75 | * recipient | |
76 | */ | |
3111beed | 77 | BATADV_HARDIF_BCAST_NORECIPIENT, |
8b84cc4f SE |
78 | |
79 | /** | |
80 | * @BATADV_HARDIF_BCAST_DUPFWD: There is just the neighbor we got it | |
81 | * from | |
82 | */ | |
3111beed | 83 | BATADV_HARDIF_BCAST_DUPFWD, |
8b84cc4f SE |
84 | |
85 | /** @BATADV_HARDIF_BCAST_DUPORIG: There is just the originator */ | |
3111beed LL |
86 | BATADV_HARDIF_BCAST_DUPORIG, |
87 | }; | |
88 | ||
a15fd361 SE |
89 | /** |
90 | * enum batadv_hard_if_cleanup - Cleanup modi for soft_iface after slave removal | |
a15fd361 SE |
91 | */ |
92 | enum batadv_hard_if_cleanup { | |
8b84cc4f SE |
93 | /** |
94 | * @BATADV_IF_CLEANUP_KEEP: Don't automatically delete soft-interface | |
95 | */ | |
a15fd361 | 96 | BATADV_IF_CLEANUP_KEEP, |
8b84cc4f SE |
97 | |
98 | /** | |
99 | * @BATADV_IF_CLEANUP_AUTO: Delete soft-interface after last slave was | |
100 | * removed | |
101 | */ | |
a15fd361 SE |
102 | BATADV_IF_CLEANUP_AUTO, |
103 | }; | |
104 | ||
9563877e | 105 | extern struct notifier_block batadv_hard_if_notifier; |
c6c8fea2 | 106 | |
1942de1b | 107 | struct net_device *batadv_get_real_netdev(struct net_device *net_device); |
10b1bbb4 SE |
108 | bool batadv_is_cfg80211_hardif(struct batadv_hard_iface *hard_iface); |
109 | bool batadv_is_wifi_hardif(struct batadv_hard_iface *hard_iface); | |
56303d34 | 110 | struct batadv_hard_iface* |
9563877e | 111 | batadv_hardif_get_by_netdev(const struct net_device *net_dev); |
56303d34 | 112 | int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface, |
2cd45a06 | 113 | struct net *net, const char *iface_name); |
a15fd361 SE |
114 | void batadv_hardif_disable_interface(struct batadv_hard_iface *hard_iface, |
115 | enum batadv_hard_if_cleanup autodel); | |
9563877e SE |
116 | void batadv_hardif_remove_interfaces(void); |
117 | int batadv_hardif_min_mtu(struct net_device *soft_iface); | |
118 | void batadv_update_min_mtu(struct net_device *soft_iface); | |
7a659d56 | 119 | void batadv_hardif_release(struct kref *ref); |
3111beed LL |
120 | int batadv_hardif_no_broadcast(struct batadv_hard_iface *if_outgoing, |
121 | u8 *orig_addr, u8 *orig_neigh); | |
c6c8fea2 | 122 | |
89652331 | 123 | /** |
7e9a8c2c | 124 | * batadv_hardif_put() - decrement the hard interface refcounter and possibly |
7a659d56 | 125 | * release it |
89652331 SW |
126 | * @hard_iface: the hard interface to free |
127 | */ | |
82047ad7 | 128 | static inline void batadv_hardif_put(struct batadv_hard_iface *hard_iface) |
c6c8fea2 | 129 | { |
7a659d56 | 130 | kref_put(&hard_iface->refcount, batadv_hardif_release); |
c6c8fea2 SE |
131 | } |
132 | ||
e57acf8e SE |
133 | /** |
134 | * batadv_primary_if_get_selected() - Get reference to primary interface | |
135 | * @bat_priv: the bat priv with all the soft interface information | |
136 | * | |
137 | * Return: primary interface (with increased refcnt), otherwise NULL | |
138 | */ | |
56303d34 SE |
139 | static inline struct batadv_hard_iface * |
140 | batadv_primary_if_get_selected(struct batadv_priv *bat_priv) | |
32ae9b22 | 141 | { |
56303d34 | 142 | struct batadv_hard_iface *hard_iface; |
32ae9b22 ML |
143 | |
144 | rcu_read_lock(); | |
145 | hard_iface = rcu_dereference(bat_priv->primary_if); | |
146 | if (!hard_iface) | |
147 | goto out; | |
148 | ||
7a659d56 | 149 | if (!kref_get_unless_zero(&hard_iface->refcount)) |
32ae9b22 ML |
150 | hard_iface = NULL; |
151 | ||
152 | out: | |
153 | rcu_read_unlock(); | |
154 | return hard_iface; | |
155 | } | |
156 | ||
c6c8fea2 | 157 | #endif /* _NET_BATMAN_ADV_HARD_INTERFACE_H_ */ |