net/batman-adv/bridge_loop_avoidance.h

   1 /* Copyright (C) 2011-2012 B.A.T.M.A.N. contributors:
   2  *
   3  * Simon Wunderlich
   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, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  17  * 02110-1301, USA
  18  */
  19
  20 #ifndef _NET_BATMAN_ADV_BLA_H_
  21 #define _NET_BATMAN_ADV_BLA_H_
  22
  23 #ifdef CONFIG_BATMAN_ADV_BLA
  24 int batadv_bla_rx(struct batadv_priv *bat_priv, struct sk_buff *skb, short vid);
  25 int batadv_bla_tx(struct batadv_priv *bat_priv, struct sk_buff *skb, short vid);
  26 int batadv_bla_is_backbone_gw(struct sk_buff *skb,
  27                               struct batadv_orig_node *orig_node, int hdr_size);
  28 int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, void *offset);
  29 int batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, uint8_t *orig);
  30 int batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
  31                                    struct batadv_bcast_packet *bcast_packet,
  32                                    int hdr_size);
  33 void batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
  34                                     struct batadv_hard_iface *primary_if,
  35                                     struct batadv_hard_iface *oldif);
  36 int batadv_bla_init(struct batadv_priv *bat_priv);
  37 void batadv_bla_free(struct batadv_priv *bat_priv);
  38
  39 #define BATADV_BLA_CRC_INIT     0
  40 #else /* ifdef CONFIG_BATMAN_ADV_BLA */
  41
  42 static inline int batadv_bla_rx(struct batadv_priv *bat_priv,
  43                                 struct sk_buff *skb, short vid)
  44 {
  45         return 0;
  46 }
  47
  48 static inline int batadv_bla_tx(struct batadv_priv *bat_priv,
  49                                 struct sk_buff *skb, short vid)
  50 {
  51         return 0;
  52 }
  53
  54 static inline int batadv_bla_is_backbone_gw(struct sk_buff *skb,
  55                                             struct batadv_orig_node *orig_node,
  56                                             int hdr_size)
  57 {
  58         return 0;
  59 }
  60
  61 static inline int batadv_bla_claim_table_seq_print_text(struct seq_file *seq,
  62                                                         void *offset)
  63 {
  64         return 0;
  65 }
  66
  67 static inline int batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv,
  68                                                  uint8_t *orig)
  69 {
  70         return 0;
  71 }
  72
  73 static inline int
  74 batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
  75                                struct batadv_bcast_packet *bcast_packet,
  76                                int hdr_size)
  77 {
  78         return 0;
  79 }
  80
  81 static inline void
  82 batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
  83                                struct batadv_hard_iface *primary_if,
  84                                struct batadv_hard_iface *oldif)
  85 {
  86 }
  87
  88 static inline int batadv_bla_init(struct batadv_priv *bat_priv)
  89 {
  90         return 1;
  91 }
  92
  93 static inline void batadv_bla_free(struct batadv_priv *bat_priv)
  94 {
  95 }
  96
  97 #endif /* ifdef CONFIG_BATMAN_ADV_BLA */
  98
  99 #endif /* ifndef _NET_BATMAN_ADV_BLA_H_ */