1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (C) 2013-2019  B.A.T.M.A.N. contributors:
3  *
4  * Martin Hundebøll <martin@hundeboll.net>
5  */
6 
7 #ifndef _NET_BATMAN_ADV_FRAGMENTATION_H_
8 #define _NET_BATMAN_ADV_FRAGMENTATION_H_
9 
10 #include "main.h"
11 
12 #include <linux/compiler.h>
13 #include <linux/list.h>
14 #include <linux/stddef.h>
15 #include <linux/types.h>
16 
17 struct sk_buff;
18 
19 void batadv_frag_purge_orig(struct batadv_orig_node *orig,
20 			    bool (*check_cb)(struct batadv_frag_table_entry *));
21 bool batadv_frag_skb_fwd(struct sk_buff *skb,
22 			 struct batadv_hard_iface *recv_if,
23 			 struct batadv_orig_node *orig_node_src);
24 bool batadv_frag_skb_buffer(struct sk_buff **skb,
25 			    struct batadv_orig_node *orig_node);
26 int batadv_frag_send_packet(struct sk_buff *skb,
27 			    struct batadv_orig_node *orig_node,
28 			    struct batadv_neigh_node *neigh_node);
29 
30 /**
31  * batadv_frag_check_entry() - check if a list of fragments has timed out
32  * @frags_entry: table entry to check
33  *
34  * Return: true if the frags entry has timed out, false otherwise.
35  */
36 static inline bool
37 batadv_frag_check_entry(struct batadv_frag_table_entry *frags_entry)
38 {
39 	if (!hlist_empty(&frags_entry->fragment_list) &&
40 	    batadv_has_timed_out(frags_entry->timestamp, BATADV_FRAG_TIMEOUT))
41 		return true;
42 	return false;
43 }
44 
45 #endif /* _NET_BATMAN_ADV_FRAGMENTATION_H_ */
46