net/batman-adv/bridge_loop_avoidance.h

   1 /* Copyright (C) 2011-2014 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, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #ifndef _NET_BATMAN_ADV_BLA_H_
  19 #define _NET_BATMAN_ADV_BLA_H_
  20
  21 #ifdef CONFIG_BATMAN_ADV_BLA
  22 int batadv_bla_rx(struct batadv_priv *bat_priv, struct sk_buff *skb,
  23                   unsigned short vid, bool is_bcast);
  24 int batadv_bla_tx(struct batadv_priv *bat_priv, struct sk_buff *skb,
  25                   unsigned 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_backbone_table_seq_print_text(struct seq_file *seq,
  30                                              void *offset);
  31 bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, uint8_t *orig,
  32                                     unsigned short vid);
  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, unsigned short vid,
  46                                 bool is_bcast)
  47 {
  48         return 0;
  49 }
  50
  51 static inline int batadv_bla_tx(struct batadv_priv *bat_priv,
  52                                 struct sk_buff *skb, unsigned short vid)
  53 {
  54         return 0;
  55 }
  56
  57 static inline int batadv_bla_is_backbone_gw(struct sk_buff *skb,
  58                                             struct batadv_orig_node *orig_node,
  59                                             int hdr_size)
  60 {
  61         return 0;
  62 }
  63
  64 static inline int batadv_bla_claim_table_seq_print_text(struct seq_file *seq,
  65                                                         void *offset)
  66 {
  67         return 0;
  68 }
  69
  70 static inline int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq,
  71                                                            void *offset)
  72 {
  73         return 0;
  74 }
  75
  76 static inline bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv,
  77                                                   uint8_t *orig,
  78                                                   unsigned short vid)
  79 {
  80         return false;
  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_ */