linux/net/batman-adv/fragmentation.h
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   1/* Copyright (C) 2013-2014 B.A.T.M.A.N. contributors:
   2 *
   3 * Martin Hundebøll <martin@hundeboll.net>
   4 *
   5 * This program is free software; you can redistribute it and/or
   6 * modify it under the terms of version 2 of the GNU General Public
   7 * License as published by the Free Software Foundation.
   8 *
   9 * This program is distributed in the hope that it will be useful, but
  10 * WITHOUT ANY WARRANTY; without even the implied warranty of
  11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  12 * General Public License for more details.
  13 *
  14 * You should have received a copy of the GNU General Public License
  15 * along with this program; if not, see <http://www.gnu.org/licenses/>.
  16 */
  17
  18#ifndef _NET_BATMAN_ADV_FRAGMENTATION_H_
  19#define _NET_BATMAN_ADV_FRAGMENTATION_H_
  20
  21void batadv_frag_purge_orig(struct batadv_orig_node *orig,
  22                            bool (*check_cb)(struct batadv_frag_table_entry *));
  23bool batadv_frag_skb_fwd(struct sk_buff *skb,
  24                         struct batadv_hard_iface *recv_if,
  25                         struct batadv_orig_node *orig_node_src);
  26bool batadv_frag_skb_buffer(struct sk_buff **skb,
  27                            struct batadv_orig_node *orig_node);
  28bool batadv_frag_send_packet(struct sk_buff *skb,
  29                             struct batadv_orig_node *orig_node,
  30                             struct batadv_neigh_node *neigh_node);
  31
  32/**
  33 * batadv_frag_check_entry - check if a list of fragments has timed out
  34 * @frags_entry: table entry to check
  35 *
  36 * Returns true if the frags entry has timed out, false otherwise.
  37 */
  38static inline bool
  39batadv_frag_check_entry(struct batadv_frag_table_entry *frags_entry)
  40{
  41        if (!hlist_empty(&frags_entry->head) &&
  42            batadv_has_timed_out(frags_entry->timestamp, BATADV_FRAG_TIMEOUT))
  43                return true;
  44        else
  45                return false;
  46}
  47
  48#endif /* _NET_BATMAN_ADV_FRAGMENTATION_H_ */
  49