1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (C) 2009-2020 B.A.T.M.A.N. contributors:
3 *
4 * Marek Lindner
5 */
6
7 #ifndef _NET_BATMAN_ADV_GATEWAY_CLIENT_H_
8 #define _NET_BATMAN_ADV_GATEWAY_CLIENT_H_
9
10 #include "main.h"
11
12 #include <linux/kref.h>
13 #include <linux/netlink.h>
14 #include <linux/seq_file.h>
15 #include <linux/skbuff.h>
16 #include <linux/types.h>
17 #include <uapi/linux/batadv_packet.h>
18
19 void batadv_gw_check_client_stop(struct batadv_priv *bat_priv);
20 void batadv_gw_reselect(struct batadv_priv *bat_priv);
21 void batadv_gw_election(struct batadv_priv *bat_priv);
22 struct batadv_orig_node *
23 batadv_gw_get_selected_orig(struct batadv_priv *bat_priv);
24 void batadv_gw_check_election(struct batadv_priv *bat_priv,
25 struct batadv_orig_node *orig_node);
26 void batadv_gw_node_update(struct batadv_priv *bat_priv,
27 struct batadv_orig_node *orig_node,
28 struct batadv_tvlv_gateway_data *gateway);
29 void batadv_gw_node_delete(struct batadv_priv *bat_priv,
30 struct batadv_orig_node *orig_node);
31 void batadv_gw_node_free(struct batadv_priv *bat_priv);
32 void batadv_gw_node_release(struct kref *ref);
33 struct batadv_gw_node *
34 batadv_gw_get_selected_gw_node(struct batadv_priv *bat_priv);
35 int batadv_gw_client_seq_print_text(struct seq_file *seq, void *offset);
36 int batadv_gw_dump(struct sk_buff *msg, struct netlink_callback *cb);
37 bool batadv_gw_out_of_range(struct batadv_priv *bat_priv, struct sk_buff *skb);
38 enum batadv_dhcp_recipient
39 batadv_gw_dhcp_recipient_get(struct sk_buff *skb, unsigned int *header_len,
40 u8 *chaddr);
41 struct batadv_gw_node *batadv_gw_node_get(struct batadv_priv *bat_priv,
42 struct batadv_orig_node *orig_node);
43
44 /**
45 * batadv_gw_node_put() - decrement the gw_node refcounter and possibly release
46 * it
47 * @gw_node: gateway node to free
48 */
batadv_gw_node_put(struct batadv_gw_node * gw_node)49 static inline void batadv_gw_node_put(struct batadv_gw_node *gw_node)
50 {
51 if (!gw_node)
52 return;
53
54 kref_put(&gw_node->refcount, batadv_gw_node_release);
55 }
56
57 #endif /* _NET_BATMAN_ADV_GATEWAY_CLIENT_H_ */
58