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Sven Eckelmann7db7d9f2017-11-19 15:05:11 +01001/* SPDX-License-Identifier: GPL-2.0 */
Sven Eckelmanncfa55c62021-01-01 00:00:01 +01002/* Copyright (C) B.A.T.M.A.N. contributors:
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +00003 *
4 * Marek Lindner
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +00005 */
6
7#ifndef _NET_BATMAN_ADV_GATEWAY_CLIENT_H_
8#define _NET_BATMAN_ADV_GATEWAY_CLIENT_H_
9
Sven Eckelmann1e2c2a42015-04-17 19:40:28 +020010#include "main.h"
11
Sven Eckelmann6340dcb2021-08-08 19:56:17 +020012#include <linux/kref.h>
Sven Eckelmann68a600d2019-05-24 20:11:17 +020013#include <linux/netlink.h>
Sven Eckelmann68a600d2019-05-24 20:11:17 +020014#include <linux/skbuff.h>
Sven Eckelmann1e2c2a42015-04-17 19:40:28 +020015#include <linux/types.h>
Sven Eckelmann68a600d2019-05-24 20:11:17 +020016#include <uapi/linux/batadv_packet.h>
Sven Eckelmann1e2c2a42015-04-17 19:40:28 +020017
Antonio Quartullic6eaa3f2013-07-13 00:06:00 +020018void batadv_gw_check_client_stop(struct batadv_priv *bat_priv);
Antonio Quartulli4e820e72013-11-04 20:59:41 +010019void batadv_gw_reselect(struct batadv_priv *bat_priv);
Sven Eckelmann56303d32012-06-05 22:31:31 +020020void batadv_gw_election(struct batadv_priv *bat_priv);
21struct batadv_orig_node *
22batadv_gw_get_selected_orig(struct batadv_priv *bat_priv);
23void batadv_gw_check_election(struct batadv_priv *bat_priv,
24 struct batadv_orig_node *orig_node);
25void batadv_gw_node_update(struct batadv_priv *bat_priv,
26 struct batadv_orig_node *orig_node,
Marek Lindner414254e2013-04-23 21:39:58 +080027 struct batadv_tvlv_gateway_data *gateway);
Sven Eckelmann56303d32012-06-05 22:31:31 +020028void batadv_gw_node_delete(struct batadv_priv *bat_priv,
29 struct batadv_orig_node *orig_node);
Simon Wunderlichbd3524c2015-08-03 19:13:58 +020030void batadv_gw_node_free(struct batadv_priv *bat_priv);
Sven Eckelmann6340dcb2021-08-08 19:56:17 +020031void batadv_gw_node_release(struct kref *ref);
Antonio Quartulli34d99cf2016-07-03 12:46:33 +020032struct batadv_gw_node *
33batadv_gw_get_selected_gw_node(struct batadv_priv *bat_priv);
Sven Eckelmannd7129da2016-07-03 13:31:42 +020034int batadv_gw_dump(struct sk_buff *msg, struct netlink_callback *cb);
Linus Lüssing9d2c9482013-08-06 20:21:15 +020035bool batadv_gw_out_of_range(struct batadv_priv *bat_priv, struct sk_buff *skb);
Antonio Quartulli6c413b12013-11-05 19:31:08 +010036enum batadv_dhcp_recipient
37batadv_gw_dhcp_recipient_get(struct sk_buff *skb, unsigned int *header_len,
Sven Eckelmann6b5e9712015-05-26 18:34:26 +020038 u8 *chaddr);
Antonio Quartulli50164d82016-07-03 12:46:34 +020039struct batadv_gw_node *batadv_gw_node_get(struct batadv_priv *bat_priv,
40 struct batadv_orig_node *orig_node);
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +000041
Sven Eckelmann6340dcb2021-08-08 19:56:17 +020042/**
43 * batadv_gw_node_put() - decrement the gw_node refcounter and possibly release
44 * it
45 * @gw_node: gateway node to free
46 */
47static inline void batadv_gw_node_put(struct batadv_gw_node *gw_node)
48{
49 if (!gw_node)
50 return;
51
52 kref_put(&gw_node->refcount, batadv_gw_node_release);
53}
54
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +000055#endif /* _NET_BATMAN_ADV_GATEWAY_CLIENT_H_ */