1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun /* Copyright (C) 2009-2020 B.A.T.M.A.N. contributors:
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * Marek Lindner
5*4882a593Smuzhiyun */
6*4882a593Smuzhiyun
7*4882a593Smuzhiyun #ifndef _NET_BATMAN_ADV_GATEWAY_CLIENT_H_
8*4882a593Smuzhiyun #define _NET_BATMAN_ADV_GATEWAY_CLIENT_H_
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun #include "main.h"
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun #include <linux/kref.h>
13*4882a593Smuzhiyun #include <linux/netlink.h>
14*4882a593Smuzhiyun #include <linux/seq_file.h>
15*4882a593Smuzhiyun #include <linux/skbuff.h>
16*4882a593Smuzhiyun #include <linux/types.h>
17*4882a593Smuzhiyun #include <uapi/linux/batadv_packet.h>
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun void batadv_gw_check_client_stop(struct batadv_priv *bat_priv);
20*4882a593Smuzhiyun void batadv_gw_reselect(struct batadv_priv *bat_priv);
21*4882a593Smuzhiyun void batadv_gw_election(struct batadv_priv *bat_priv);
22*4882a593Smuzhiyun struct batadv_orig_node *
23*4882a593Smuzhiyun batadv_gw_get_selected_orig(struct batadv_priv *bat_priv);
24*4882a593Smuzhiyun void batadv_gw_check_election(struct batadv_priv *bat_priv,
25*4882a593Smuzhiyun struct batadv_orig_node *orig_node);
26*4882a593Smuzhiyun void batadv_gw_node_update(struct batadv_priv *bat_priv,
27*4882a593Smuzhiyun struct batadv_orig_node *orig_node,
28*4882a593Smuzhiyun struct batadv_tvlv_gateway_data *gateway);
29*4882a593Smuzhiyun void batadv_gw_node_delete(struct batadv_priv *bat_priv,
30*4882a593Smuzhiyun struct batadv_orig_node *orig_node);
31*4882a593Smuzhiyun void batadv_gw_node_free(struct batadv_priv *bat_priv);
32*4882a593Smuzhiyun void batadv_gw_node_release(struct kref *ref);
33*4882a593Smuzhiyun struct batadv_gw_node *
34*4882a593Smuzhiyun batadv_gw_get_selected_gw_node(struct batadv_priv *bat_priv);
35*4882a593Smuzhiyun int batadv_gw_client_seq_print_text(struct seq_file *seq, void *offset);
36*4882a593Smuzhiyun int batadv_gw_dump(struct sk_buff *msg, struct netlink_callback *cb);
37*4882a593Smuzhiyun bool batadv_gw_out_of_range(struct batadv_priv *bat_priv, struct sk_buff *skb);
38*4882a593Smuzhiyun enum batadv_dhcp_recipient
39*4882a593Smuzhiyun batadv_gw_dhcp_recipient_get(struct sk_buff *skb, unsigned int *header_len,
40*4882a593Smuzhiyun u8 *chaddr);
41*4882a593Smuzhiyun struct batadv_gw_node *batadv_gw_node_get(struct batadv_priv *bat_priv,
42*4882a593Smuzhiyun struct batadv_orig_node *orig_node);
43*4882a593Smuzhiyun
44*4882a593Smuzhiyun /**
45*4882a593Smuzhiyun * batadv_gw_node_put() - decrement the gw_node refcounter and possibly release
46*4882a593Smuzhiyun * it
47*4882a593Smuzhiyun * @gw_node: gateway node to free
48*4882a593Smuzhiyun */
batadv_gw_node_put(struct batadv_gw_node * gw_node)49*4882a593Smuzhiyun static inline void batadv_gw_node_put(struct batadv_gw_node *gw_node)
50*4882a593Smuzhiyun {
51*4882a593Smuzhiyun if (!gw_node)
52*4882a593Smuzhiyun return;
53*4882a593Smuzhiyun
54*4882a593Smuzhiyun kref_put(&gw_node->refcount, batadv_gw_node_release);
55*4882a593Smuzhiyun }
56*4882a593Smuzhiyun
57*4882a593Smuzhiyun #endif /* _NET_BATMAN_ADV_GATEWAY_CLIENT_H_ */
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