net/batman-adv/fragmentation.h

   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_ */