linux_old1/net/batman-adv/fragmentation.h

58 lines
1.9 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2013-2018 B.A.T.M.A.N. contributors:
*
* Martin Hundebøll <martin@hundeboll.net>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _NET_BATMAN_ADV_FRAGMENTATION_H_
#define _NET_BATMAN_ADV_FRAGMENTATION_H_
#include "main.h"
#include <linux/compiler.h>
#include <linux/list.h>
#include <linux/stddef.h>
#include <linux/types.h>
struct sk_buff;
void batadv_frag_purge_orig(struct batadv_orig_node *orig,
bool (*check_cb)(struct batadv_frag_table_entry *));
bool batadv_frag_skb_fwd(struct sk_buff *skb,
struct batadv_hard_iface *recv_if,
struct batadv_orig_node *orig_node_src);
bool batadv_frag_skb_buffer(struct sk_buff **skb,
struct batadv_orig_node *orig_node);
int batadv_frag_send_packet(struct sk_buff *skb,
struct batadv_orig_node *orig_node,
struct batadv_neigh_node *neigh_node);
/**
* batadv_frag_check_entry() - check if a list of fragments has timed out
* @frags_entry: table entry to check
*
* Return: true if the frags entry has timed out, false otherwise.
*/
static inline bool
batadv_frag_check_entry(struct batadv_frag_table_entry *frags_entry)
{
if (!hlist_empty(&frags_entry->fragment_list) &&
batadv_has_timed_out(frags_entry->timestamp, BATADV_FRAG_TIMEOUT))
return true;
return false;
}
#endif /* _NET_BATMAN_ADV_FRAGMENTATION_H_ */