net/batman-adv/bridge_loop_avoidance.h

   1 /* Copyright (C) 2011-2013 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,
  25                   unsigned short vid, bool is_bcast);
  26 int batadv_bla_tx(struct batadv_priv *bat_priv, struct sk_buff *skb,
  27                   unsigned short vid);
  28 int batadv_bla_is_backbone_gw(struct sk_buff *skb,
  29                               struct batadv_orig_node *orig_node, int hdr_size);
  30 int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, void *offset);
  31 int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq,
  32                                              void *offset);
  33 bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, uint8_t *orig,
  34                                     unsigned short vid);
  35 int batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
  36                                    struct sk_buff *skb);
  37 void batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
  38                                     struct batadv_hard_iface *primary_if,
  39                                     struct batadv_hard_iface *oldif);
  40 int batadv_bla_init(struct batadv_priv *bat_priv);
  41 void batadv_bla_free(struct batadv_priv *bat_priv);
  42
  43 #define BATADV_BLA_CRC_INIT     0
  44 #else /* ifdef CONFIG_BATMAN_ADV_BLA */
  45
  46 static inline int batadv_bla_rx(struct batadv_priv *bat_priv,
  47                                 struct sk_buff *skb, unsigned short vid,
  48                                 bool is_bcast)
  49 {
  50         return 0;
  51 }
  52
  53 static inline int batadv_bla_tx(struct batadv_priv *bat_priv,
  54                                 struct sk_buff *skb, unsigned short vid)
  55 {
  56         return 0;
  57 }
  58
  59 static inline int batadv_bla_is_backbone_gw(struct sk_buff *skb,
  60                                             struct batadv_orig_node *orig_node,
  61                                             int hdr_size)
  62 {
  63         return 0;
  64 }
  65
  66 static inline int batadv_bla_claim_table_seq_print_text(struct seq_file *seq,
  67                                                         void *offset)
  68 {
  69         return 0;
  70 }
  71
  72 static inline int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq,
  73                                                            void *offset)
  74 {
  75         return 0;
  76 }
  77
  78 static inline bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv,
  79                                                   uint8_t *orig,
  80                                                   unsigned short vid)
  81 {
  82         return false;
  83 }
  84
  85 static inline int
  86 batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
  87                                struct sk_buff *skb)
  88 {
  89         return 0;
  90 }
  91
  92 static inline void
  93 batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
  94                                struct batadv_hard_iface *primary_if,
  95                                struct batadv_hard_iface *oldif)
  96 {
  97 }
  98
  99 static inline int batadv_bla_init(struct batadv_priv *bat_priv)
 100 {
 101         return 1;
 102 }
 103
 104 static inline void batadv_bla_free(struct batadv_priv *bat_priv)
 105 {
 106 }
 107
 108 #endif /* ifdef CONFIG_BATMAN_ADV_BLA */
 109
 110 #endif /* ifndef _NET_BATMAN_ADV_BLA_H_ */