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  +   €l–Я=їJЕ!¶e8 EpЬ TЕЈБ„Џ<п_†I|ҐЏ+БА ?ч     /* SPDX-License-Identifier: MIT */
/* Copyright (C) B.A.T.M.A.N. contributors:
 *
 * Matthias Schiffer
 */

#ifndef _LINUX_BATMAN_ADV_H_
#define _LINUX_BATMAN_ADV_H_

#define BATADV_NL_NAME "batadv"

#define BATADV_NL_MCAST_GROUP_CONFIG	"config"
#define BATADV_NL_MCAST_GROUP_TPMETER	"tpmeter"

/**
 * enum batadv_tt_client_flags - TT client specific flags
 *
 * Bits from 0 to 7 are called _remote flags_ because they are sent on the wire.
 * Bits from 8 to 15 are called _local flags_ because they are used for local
 * computations only.
 *
 * Bits from 4 to 7 - a subset of remote flags - are ensured to be in sync with
 * the other nodes in the network. To achieve this goal these flags are included
 * in the TT CRC computation.
 */
enum batadv_tt_client_flags {
	/**
	 * @BATADV_TT_CLIENT_DEL: the client has to be deleted from the table
	 */
	BATADV_TT_CLIENT_DEL     = (1 << 0),

	/**
	 * @BATADV_TT_CLIENT_ROAM: the client roamed to/from another node and
	 * the new update telling its new real location has not been
	 * received/sent yet
	 */
	BATADV_TT_CLIENT_ROAM    = (1 << 1),

	/**
	 * @BATADV_TT_CLIENT_WIFI: this client is connected through a wifi
	 * interface. This information is used by the "AP Isolation" feature
	 */
	BATADV_TT_CLIENT_WIFI    = (1 << 4),

	/**
	 * @BATADV_TT_CLIENT_ISOLA: this client is considered "isolated". This
	 * information is used by the Extended Isolation feature
	 */
	BATADV_TT_CLIENT_ISOLA	 = (1 << 5),

	/**
	 * @BATADV_TT_CLIENT_NOPURGE: this client should never be removed from
	 * the table
	 */
	BATADV_TT_CLIENT_NOPURGE = (1 << 8),

	/**
	 * @BATADV_TT_CLIENT_NEW: this client has been added to the local table
	 * but has not been announced yet
	 */
	BATADV_TT_CLIENT_NEW     = (1 << 9),

	/**
	 * @BATADV_TT_CLIENT_PENDING: this client is marked for removal but it
	 * is kept in the table for one more originator interval for consistency
	 * purposes
	 */
	BATADV_TT_CLIENT_PENDING = (1 << 10),

	/**
	 * @BATADV_TT_CLIENT_TEMP: this global client has been detected to be
	 * part of the network but no node has already announced it
	 */
	BATADV_TT_CLIENT_TEMP	 = (1 << 11),
};

/**
 * enum batadv_mcast_flags_priv - Private, own multicast flags
 *
 * These are internal, multicast related flags. Currently they describe certain
 * multicast related attributes of the segment this originator bridges into the
 * mesh.
 *
 * Those attributes are used to determine the public multicast flags this
 * originator is going to announce via TT.
 *
 * For netlink, if BATADV_MCAST_FLAGS_BRIDGED is unset then all querier
 * related flags are undefined.
 */
enum batadv_mcast_flags_priv {
	/**
	 * @BATADV_MCAST_FLAGS_BRIDGED: There is a bridge on top of the mesh
	 * interface.
	 */
	BATADV_MCAST_FLAGS_BRIDGED			= (1 << 0),

	/**
	 * @BATADV_MCAST_FLAGS_QUERIER_IPV4_EXISTS: Whether an IGMP querier
	 * exists in the mesh
	 */
	BATADV_MCAST_FLAGS_QUERIER_IPV4_EXISTS		= (1 << 1),

	/**
	 * @BATADV_MCAST_FLAGS_QUERIER_IPV6_EXISTS: Whether an MLD querier
	 * exists in the mesh
	 */
	BATADV_MCAST_FLAGS_QUERIER_IPV6_EXISTS		= (1 << 2),

	/**
	 * @BATADV_MCAST_FLAGS_QUERIER_IPV4_SHADOWING: If an IGMP querier
	 * exists, whether it is potentially shadowing multicast listeners
	 * (i.e. querier is behind our own bridge segment)
	 */
	BATADV_MCAST_FLAGS_QUERIER_IPV4_SHADOWING	= (1 << 3),

	/**
	 * @BATADV_MCAST_FLAGS_QUERIER_IPV6_SHADOWING: If an MLD querier
	 * exists, whether it is potentially shadowing multicast listeners
	 * (i.e. querier is behind our own bridge segment)
	 */
	BATADV_MCAST_FLAGS_QUERIER_IPV6_SHADOWING	= (1 << 4),
};

/**
 * enum batadv_gw_modes - gateway mode of node
 */
enum batadv_gw_modes {
	/** @BATADV_GW_MODE_OFF: gw mode disabled */
	BATADV_GW_MODE_OFF,

	/** @BATADV_GW_MODE_CLIENT: send DHCP requests to gw servers */
	BATADV_GW_MODE_CLIENT,

	/** @BATADV_GW_MODE_SERVER: announce itself as gateway server */
	BATADV_GW_MODE_SERVER,
};

/**
 * enum batadv_nl_attrs - batman-adv netlink attributes
 */
enum batadv_nl_attrs {
	/**
	 * @BATADV