/* SPDX-License-Identifier: GPL-2.0 */

  /* Copyright (C) 2010-2020  B.A.T.M.A.N. contributors:

   *
   * Marek Lindner

   */

  #ifndef _NET_BATMAN_ADV_SYSFS_H_
  #define _NET_BATMAN_ADV_SYSFS_H_

  #include "main.h"

  #include <linux/kobject.h>
  #include <linux/netdevice.h>

  #include <linux/sysfs.h>
  #include <linux/types.h>

  #define BATADV_SYSFS_IF_MESH_SUBDIR "mesh"
  #define BATADV_SYSFS_IF_BAT_SUBDIR "batman_adv"

  /**
   * BATADV_SYSFS_VLAN_SUBDIR_PREFIX - prefix of the subfolder that will be
   *  created in the sysfs hierarchy for each VLAN interface. The subfolder will
   *  be named "BATADV_SYSFS_VLAN_SUBDIR_PREFIX%vid".
   */
  #define BATADV_SYSFS_VLAN_SUBDIR_PREFIX "vlan"

  /**
   * struct batadv_attribute - sysfs export helper for batman-adv attributes
   */

  struct batadv_attribute {

  	/** @attr: sysfs attribute file */

  	struct attribute attr;

  
  	/**
  	 * @show: function to export the current attribute's content to sysfs
  	 */

  	ssize_t (*show)(struct kobject *kobj, struct attribute *attr,
  			char *buf);

  
  	/**
  	 * @store: function to load new value from character buffer and save it
  	 * in batman-adv attribute
  	 */

  	ssize_t (*store)(struct kobject *kobj, struct attribute *attr,
  			 char *buf, size_t count);
  };

  #ifdef CONFIG_BATMAN_ADV_SYSFS

  int batadv_sysfs_add_meshif(struct net_device *dev);
  void batadv_sysfs_del_meshif(struct net_device *dev);
  int batadv_sysfs_add_hardif(struct kobject **hardif_obj,
  			    struct net_device *dev);
  void batadv_sysfs_del_hardif(struct kobject **hardif_obj);

  int batadv_sysfs_add_vlan(struct net_device *dev,
  			  struct batadv_softif_vlan *vlan);
  void batadv_sysfs_del_vlan(struct batadv_priv *bat_priv,
  			   struct batadv_softif_vlan *vlan);

  
  #else
  
  static inline int batadv_sysfs_add_meshif(struct net_device *dev)
  {
  	return 0;
  }
  
  static inline void batadv_sysfs_del_meshif(struct net_device *dev)
  {
  }
  
  static inline int batadv_sysfs_add_hardif(struct kobject **hardif_obj,
  					  struct net_device *dev)
  {
  	return 0;
  }
  
  static inline void batadv_sysfs_del_hardif(struct kobject **hardif_obj)
  {
  }
  
  static inline int batadv_sysfs_add_vlan(struct net_device *dev,
  					struct batadv_softif_vlan *vlan)
  {
  	return 0;
  }
  
  static inline void batadv_sysfs_del_vlan(struct batadv_priv *bat_priv,
  					 struct batadv_softif_vlan *vlan)
  {
  }
  
  #endif

  
  #endif /* _NET_BATMAN_ADV_SYSFS_H_ */