xref: /kernel/linux/linux-5.10/net/batman-adv/sysfs.h (revision 8c2ecf20) 
1/* SPDX-License-Identifier: GPL-2.0 */
2/* Copyright (C) 2010-2020  B.A.T.M.A.N. contributors:
3 *
4 * Marek Lindner
5 */
6
7#ifndef _NET_BATMAN_ADV_SYSFS_H_
8#define _NET_BATMAN_ADV_SYSFS_H_
9
10#include "main.h"
11
12#include <linux/kobject.h>
13#include <linux/netdevice.h>
14#include <linux/sysfs.h>
15#include <linux/types.h>
16
17#define BATADV_SYSFS_IF_MESH_SUBDIR "mesh"
18#define BATADV_SYSFS_IF_BAT_SUBDIR "batman_adv"
19/**
20 * BATADV_SYSFS_VLAN_SUBDIR_PREFIX - prefix of the subfolder that will be
21 *  created in the sysfs hierarchy for each VLAN interface. The subfolder will
22 *  be named "BATADV_SYSFS_VLAN_SUBDIR_PREFIX%vid".
23 */
24#define BATADV_SYSFS_VLAN_SUBDIR_PREFIX "vlan"
25
26/**
27 * struct batadv_attribute - sysfs export helper for batman-adv attributes
28 */
29struct batadv_attribute {
30	/** @attr: sysfs attribute file */
31	struct attribute attr;
32
33	/**
34	 * @show: function to export the current attribute's content to sysfs
35	 */
36	ssize_t (*show)(struct kobject *kobj, struct attribute *attr,
37			char *buf);
38
39	/**
40	 * @store: function to load new value from character buffer and save it
41	 * in batman-adv attribute
42	 */
43	ssize_t (*store)(struct kobject *kobj, struct attribute *attr,
44			 char *buf, size_t count);
45};
46
47#ifdef CONFIG_BATMAN_ADV_SYSFS
48
49int batadv_sysfs_add_meshif(struct net_device *dev);
50void batadv_sysfs_del_meshif(struct net_device *dev);
51int batadv_sysfs_add_hardif(struct kobject **hardif_obj,
52			    struct net_device *dev);
53void batadv_sysfs_del_hardif(struct kobject **hardif_obj);
54int batadv_sysfs_add_vlan(struct net_device *dev,
55			  struct batadv_softif_vlan *vlan);
56void batadv_sysfs_del_vlan(struct batadv_priv *bat_priv,
57			   struct batadv_softif_vlan *vlan);
58
59#else
60
61static inline int batadv_sysfs_add_meshif(struct net_device *dev)
62{
63	return 0;
64}
65
66static inline void batadv_sysfs_del_meshif(struct net_device *dev)
67{
68}
69
70static inline int batadv_sysfs_add_hardif(struct kobject **hardif_obj,
71					  struct net_device *dev)
72{
73	return 0;
74}
75
76static inline void batadv_sysfs_del_hardif(struct kobject **hardif_obj)
77{
78}
79
80static inline int batadv_sysfs_add_vlan(struct net_device *dev,
81					struct batadv_softif_vlan *vlan)
82{
83	return 0;
84}
85
86static inline void batadv_sysfs_del_vlan(struct batadv_priv *bat_priv,
87					 struct batadv_softif_vlan *vlan)
88{
89}
90
91#endif
92
93#endif /* _NET_BATMAN_ADV_SYSFS_H_ */
94