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