1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (C) 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/skbuff.h>
15 #include <linux/types.h>
16 #include <uapi/linux/batadv_packet.h>
17
18 void batadv_gw_check_client_stop(struct batadv_priv *bat_priv);
19 void batadv_gw_reselect(struct batadv_priv *bat_priv);
20 void batadv_gw_election(struct batadv_priv *bat_priv);
21 struct batadv_orig_node *
22 batadv_gw_get_selected_orig(struct batadv_priv *bat_priv);
23 void batadv_gw_check_election(struct batadv_priv *bat_priv,
24 struct batadv_orig_node *orig_node);
25 void batadv_gw_node_update(struct batadv_priv *bat_priv,
26 struct batadv_orig_node *orig_node,
27 struct batadv_tvlv_gateway_data *gateway);
28 void batadv_gw_node_delete(struct batadv_priv *bat_priv,
29 struct batadv_orig_node *orig_node);
30 void batadv_gw_node_free(struct batadv_priv *bat_priv);
31 void batadv_gw_node_release(struct kref *ref);
32 struct batadv_gw_node *
33 batadv_gw_get_selected_gw_node(struct batadv_priv *bat_priv);
34 int batadv_gw_dump(struct sk_buff *msg, struct netlink_callback *cb);
35 bool batadv_gw_out_of_range(struct batadv_priv *bat_priv, struct sk_buff *skb);
36 enum batadv_dhcp_recipient
37 batadv_gw_dhcp_recipient_get(struct sk_buff *skb, unsigned int *header_len,
38 u8 *chaddr);
39 struct batadv_gw_node *batadv_gw_node_get(struct batadv_priv *bat_priv,
40 struct batadv_orig_node *orig_node);
41
42 /**
43 * batadv_gw_node_put() - decrement the gw_node refcounter and possibly release
44 * it
45 * @gw_node: gateway node to free
46 */
47 static 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
55 #endif /* _NET_BATMAN_ADV_GATEWAY_CLIENT_H_ */
56
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