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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/net/batman-adv/gateway_client.h
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/* SPDX-License-Identifier: GPL-2.0 */

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

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 *

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 * Marek Lindner

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 */

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#ifndef _NET_BATMAN_ADV_GATEWAY_CLIENT_H_

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#define _NET_BATMAN_ADV_GATEWAY_CLIENT_H_

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#include "main.h"

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#include <linux/kref.h>

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#include <linux/netlink.h>

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#include <linux/skbuff.h>

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#include <linux/types.h>

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#include <uapi/linux/batadv_packet.h>

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void batadv_gw_check_client_stop(struct batadv_priv *bat_priv);

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void batadv_gw_reselect(struct batadv_priv *bat_priv);

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void batadv_gw_election(struct batadv_priv *bat_priv);

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struct batadv_orig_node *

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batadv_gw_get_selected_orig(struct batadv_priv *bat_priv);

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void batadv_gw_check_election(struct batadv_priv *bat_priv,

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			      struct batadv_orig_node *orig_node);

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void batadv_gw_node_update(struct batadv_priv *bat_priv,

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			   struct batadv_orig_node *orig_node,

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			   struct batadv_tvlv_gateway_data *gateway);

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void batadv_gw_node_delete(struct batadv_priv *bat_priv,

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			   struct batadv_orig_node *orig_node);

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void batadv_gw_node_free(struct batadv_priv *bat_priv);

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void batadv_gw_node_release(struct kref *ref);

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struct batadv_gw_node *

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batadv_gw_get_selected_gw_node(struct batadv_priv *bat_priv);

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int batadv_gw_dump(struct sk_buff *msg, struct netlink_callback *cb);

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bool batadv_gw_out_of_range(struct batadv_priv *bat_priv, struct sk_buff *skb);

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enum batadv_dhcp_recipient

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batadv_gw_dhcp_recipient_get(struct sk_buff *skb, unsigned int *header_len,

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			     u8 *chaddr);

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struct batadv_gw_node *batadv_gw_node_get(struct batadv_priv *bat_priv,

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					  struct batadv_orig_node *orig_node);

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/**

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 * batadv_gw_node_put() - decrement the gw_node refcounter and possibly release

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 *  it

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 * @gw_node: gateway node to free

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 */

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static inline void batadv_gw_node_put(struct batadv_gw_node *gw_node)

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{

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	if (!gw_node)

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		return;

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	kref_put(&gw_node->refcount, batadv_gw_node_release);

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}

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#endif /* _NET_BATMAN_ADV_GATEWAY_CLIENT_H_ */

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