1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors:
4 * Marek Lindner, Simon Wunderlich
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.
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.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, see <http://www.gnu.org/licenses/>.
19 #ifndef _NET_BATMAN_ADV_HARD_INTERFACE_H_
20 #define _NET_BATMAN_ADV_HARD_INTERFACE_H_
24 #include <linux/compiler.h>
25 #include <linux/kref.h>
26 #include <linux/notifier.h>
27 #include <linux/rcupdate.h>
28 #include <linux/stddef.h>
29 #include <linux/types.h>
34 enum batadv_hard_if_state {
36 BATADV_IF_TO_BE_REMOVED,
39 BATADV_IF_TO_BE_ACTIVATED,
44 * enum batadv_hard_if_bcast - broadcast avoidance options
45 * @BATADV_HARDIF_BCAST_OK: Do broadcast on according hard interface
46 * @BATADV_HARDIF_BCAST_NORECIPIENT: Broadcast not needed, there is no recipient
47 * @BATADV_HARDIF_BCAST_DUPFWD: There is just the neighbor we got it from
48 * @BATADV_HARDIF_BCAST_DUPORIG: There is just the originator
50 enum batadv_hard_if_bcast {
51 BATADV_HARDIF_BCAST_OK = 0,
52 BATADV_HARDIF_BCAST_NORECIPIENT,
53 BATADV_HARDIF_BCAST_DUPFWD,
54 BATADV_HARDIF_BCAST_DUPORIG,
58 * enum batadv_hard_if_cleanup - Cleanup modi for soft_iface after slave removal
59 * @BATADV_IF_CLEANUP_KEEP: Don't automatically delete soft-interface
60 * @BATADV_IF_CLEANUP_AUTO: Delete soft-interface after last slave was removed
62 enum batadv_hard_if_cleanup {
63 BATADV_IF_CLEANUP_KEEP,
64 BATADV_IF_CLEANUP_AUTO,
67 extern struct notifier_block batadv_hard_if_notifier;
69 struct net_device *batadv_get_real_netdev(struct net_device *net_device);
70 bool batadv_is_cfg80211_hardif(struct batadv_hard_iface *hard_iface);
71 bool batadv_is_wifi_hardif(struct batadv_hard_iface *hard_iface);
72 struct batadv_hard_iface*
73 batadv_hardif_get_by_netdev(const struct net_device *net_dev);
74 int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface,
75 struct net *net, const char *iface_name);
76 void batadv_hardif_disable_interface(struct batadv_hard_iface *hard_iface,
77 enum batadv_hard_if_cleanup autodel);
78 void batadv_hardif_remove_interfaces(void);
79 int batadv_hardif_min_mtu(struct net_device *soft_iface);
80 void batadv_update_min_mtu(struct net_device *soft_iface);
81 void batadv_hardif_release(struct kref *ref);
82 int batadv_hardif_no_broadcast(struct batadv_hard_iface *if_outgoing,
83 u8 *orig_addr, u8 *orig_neigh);
86 * batadv_hardif_put - decrement the hard interface refcounter and possibly
88 * @hard_iface: the hard interface to free
90 static inline void batadv_hardif_put(struct batadv_hard_iface *hard_iface)
92 kref_put(&hard_iface->refcount, batadv_hardif_release);
95 static inline struct batadv_hard_iface *
96 batadv_primary_if_get_selected(struct batadv_priv *bat_priv)
98 struct batadv_hard_iface *hard_iface;
101 hard_iface = rcu_dereference(bat_priv->primary_if);
105 if (!kref_get_unless_zero(&hard_iface->refcount))
113 #endif /* _NET_BATMAN_ADV_HARD_INTERFACE_H_ */