1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (C) 2013-2018 B.A.T.M.A.N. contributors:
3 *
4 * Martin Hundebøll <martin@hundeboll.net>
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of version 2 of the GNU General Public
8 * License as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, see <http://www.gnu.org/licenses/>.
17 */
18
19 #ifndef _NET_BATMAN_ADV_FRAGMENTATION_H_
20 #define _NET_BATMAN_ADV_FRAGMENTATION_H_
21
22 #include "main.h"
23
24 #include <linux/compiler.h>
25 #include <linux/list.h>
26 #include <linux/stddef.h>
27 #include <linux/types.h>
28
29 struct sk_buff;
30
31 void batadv_frag_purge_orig(struct batadv_orig_node *orig,
32 bool (*check_cb)(struct batadv_frag_table_entry *));
33 bool batadv_frag_skb_fwd(struct sk_buff *skb,
34 struct batadv_hard_iface *recv_if,
35 struct batadv_orig_node *orig_node_src);
36 bool batadv_frag_skb_buffer(struct sk_buff **skb,
37 struct batadv_orig_node *orig_node);
38 int batadv_frag_send_packet(struct sk_buff *skb,
39 struct batadv_orig_node *orig_node,
40 struct batadv_neigh_node *neigh_node);
41
42 /**
43 * batadv_frag_check_entry() - check if a list of fragments has timed out
44 * @frags_entry: table entry to check
45 *
46 * Return: true if the frags entry has timed out, false otherwise.
47 */
48 static inline bool
batadv_frag_check_entry(struct batadv_frag_table_entry * frags_entry)49 batadv_frag_check_entry(struct batadv_frag_table_entry *frags_entry)
50 {
51 if (!hlist_empty(&frags_entry->fragment_list) &&
52 batadv_has_timed_out(frags_entry->timestamp, BATADV_FRAG_TIMEOUT))
53 return true;
54 return false;
55 }
56
57 #endif /* _NET_BATMAN_ADV_FRAGMENTATION_H_ */
58
