net/batman-adv/hard-interface.h

Source file repositories/reference/linux-study-clean/net/batman-adv/hard-interface.h

File Facts

System
Linux kernel
Corpus path
net/batman-adv/hard-interface.h
Extension
.h
Size
4338 bytes
Lines
156
Domain
Networking Core
Bucket
Sockets, Protocols, Packet Path, And Network Policy
Inferred role
Networking Core: implementation source
Status
source implementation candidate

Why This File Exists

Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef _NET_BATMAN_ADV_HARD_INTERFACE_H_
#define _NET_BATMAN_ADV_HARD_INTERFACE_H_

#include "main.h"

#include <linux/compiler.h>
#include <linux/init.h>
#include <linux/kref.h>
#include <linux/netdevice.h>
#include <linux/rcupdate.h>
#include <linux/stddef.h>
#include <linux/types.h>

/**
 * enum batadv_hard_if_state - State of a hard interface
 */
enum batadv_hard_if_state {
	/**
	 * @BATADV_IF_NOT_IN_USE: interface is not used as slave interface of a
	 * batman-adv mesh interface
	 */
	BATADV_IF_NOT_IN_USE,

	/**
	 * @BATADV_IF_TO_BE_REMOVED: interface will be removed from mesh
	 * interface
	 */
	BATADV_IF_TO_BE_REMOVED,

	/** @BATADV_IF_INACTIVE: interface is deactivated */
	BATADV_IF_INACTIVE,

	/** @BATADV_IF_ACTIVE: interface is used */
	BATADV_IF_ACTIVE,

	/** @BATADV_IF_TO_BE_ACTIVATED: interface is getting activated */
	BATADV_IF_TO_BE_ACTIVATED,
};

/**
 * enum batadv_hard_if_bcast - broadcast avoidance options
 */
enum batadv_hard_if_bcast {
	/** @BATADV_HARDIF_BCAST_OK: Do broadcast on according hard interface */
	BATADV_HARDIF_BCAST_OK = 0,

	/**
	 * @BATADV_HARDIF_BCAST_NORECIPIENT: Broadcast not needed, there is no
	 *  recipient
	 */
	BATADV_HARDIF_BCAST_NORECIPIENT,

	/**
	 * @BATADV_HARDIF_BCAST_DUPFWD: There is just the neighbor we got it
	 *  from
	 */
	BATADV_HARDIF_BCAST_DUPFWD,

	/** @BATADV_HARDIF_BCAST_DUPORIG: There is just the originator */
	BATADV_HARDIF_BCAST_DUPORIG,
};

extern struct notifier_block batadv_hard_if_notifier;

struct net_device *__batadv_get_real_netdev(struct net_device *net_device);
struct net_device *batadv_get_real_netdev(struct net_device *net_device);
u32 batadv_netdev_get_wifi_flags(struct net_device *net_dev);
u32 batadv_hardif_get_wifi_flags(struct batadv_hard_iface *hard_iface);
bool batadv_is_wifi_hardif(struct batadv_hard_iface *hard_iface);
struct batadv_hard_iface*
batadv_hardif_get_by_netdev(const struct net_device *net_dev);
int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface,
				   struct net_device *mesh_iface);
void batadv_hardif_disable_interface(struct batadv_hard_iface *hard_iface);
int batadv_hardif_min_mtu(struct net_device *mesh_iface);
void batadv_update_min_mtu(struct net_device *mesh_iface);
void batadv_hardif_release(struct kref *ref);
int batadv_hardif_no_broadcast(struct batadv_hard_iface *if_outgoing,
			       u8 *orig_addr, u8 *orig_neigh);
int __init batadv_wifi_net_devices_init(void);
void batadv_wifi_net_devices_deinit(void);

/**
 * batadv_hardif_put() - decrement the hard interface refcounter and possibly
 *  release it
 * @hard_iface: the hard interface to free
 */
static inline void batadv_hardif_put(struct batadv_hard_iface *hard_iface)
{
	if (!hard_iface)

Annotation

Implementation Notes