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                   bool is_bcast);
  26 int batadv_bla_tx(struct batadv_priv *bat_priv, struct sk_buff *skb, short vid);
  27 int batadv_bla_is_backbone_gw(struct sk_buff *skb,
  28                               struct batadv_orig_node *orig_node, int hdr_size);
  29 int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, void *offset);
  30 int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq,
  31                                              void *offset);
  32 int batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, uint8_t *orig);
  33 int batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
  34                                    struct sk_buff *skb);
  35 void batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
  36                                     struct batadv_hard_iface *primary_if,
  37                                     struct batadv_hard_iface *oldif);
  38 int batadv_bla_init(struct batadv_priv *bat_priv);
  39 void batadv_bla_free(struct batadv_priv *bat_priv);
  40
  41 #define BATADV_BLA_CRC_INIT     0
  42 #else /* ifdef CONFIG_BATMAN_ADV_BLA */
  43
  44 static inline int batadv_bla_rx(struct batadv_priv *bat_priv,
  45                                 struct sk_buff *skb, short vid, bool is_bcast)
  46 {
  47         return 0;
  48 }
  49
  50 static inline int batadv_bla_tx(struct batadv_priv *bat_priv,
  51                                 struct sk_buff *skb, short vid)
  52 {
  53         return 0;
  54 }
  55
  56 static inline int batadv_bla_is_backbone_gw(struct sk_buff *skb,
  57                                             struct batadv_orig_node *orig_node,
  58                                             int hdr_size)
  59 {
  60         return 0;
  61 }
  62
  63 static inline int batadv_bla_claim_table_seq_print_text(struct seq_file *seq,
  64                                                         void *offset)
  65 {
  66         return 0;
  67 }
  68
  69 static inline int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq,
  70                                                            void *offset)
  71 {
  72         return 0;
  73 }
  74
  75 static inline int batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv,
  76                                                  uint8_t *orig)
  77 {
  78         return 0;
  79 }
  80
  81 static inline int
  82 batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
  83                                struct sk_buff *skb)
  84 {
  85         return 0;
  86 }
  87
  88 static inline void
  89 batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
  90                                struct batadv_hard_iface *primary_if,
  91                                struct batadv_hard_iface *oldif)
  92 {
  93 }
  94
  95 static inline int batadv_bla_init(struct batadv_priv *bat_priv)
  96 {
  97         return 1;
  98 }
  99
 100 static inline void batadv_bla_free(struct batadv_priv *bat_priv)
 101 {
 102 }
 103
 104 #endif /* ifdef CONFIG_BATMAN_ADV_BLA */
 105
 106 #endif /* ifndef _NET_BATMAN_ADV_BLA_H_ */