net/batman-adv/bridge_loop_avoidance.h

   1 /*
   2  * Copyright (C) 2011-2012 B.A.T.M.A.N. contributors:
   3  *
   4  * Simon Wunderlich
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of version 2 of the GNU General Public
   8  * License as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  18  * 02110-1301, USA
  19  *
  20  */
  21
  22 #ifndef _NET_BATMAN_ADV_BLA_H_
  23 #define _NET_BATMAN_ADV_BLA_H_
  24
  25 #ifdef CONFIG_BATMAN_ADV_BLA
  26 int bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid,
  27            bool is_bcast);
  28 int bla_tx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid);
  29 int bla_is_backbone_gw(struct sk_buff *skb,
  30                        struct orig_node *orig_node, int hdr_size);
  31 int bla_claim_table_seq_print_text(struct seq_file *seq, void *offset);
  32 int bla_is_backbone_gw_orig(struct bat_priv *bat_priv, uint8_t *orig);
  33 int bla_check_bcast_duplist(struct bat_priv *bat_priv,
  34                             struct bcast_packet *bcast_packet, int hdr_size);
  35 void bla_update_orig_address(struct bat_priv *bat_priv,
  36                              struct hard_iface *primary_if,
  37                              struct hard_iface *oldif);
  38 int bla_init(struct bat_priv *bat_priv);
  39 void bla_free(struct bat_priv *bat_priv);
  40
  41 #define BLA_CRC_INIT    0
  42 #else /* ifdef CONFIG_BATMAN_ADV_BLA */
  43
  44 static inline int bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb,
  45                          short vid, bool is_bcast)
  46 {
  47         return 0;
  48 }
  49
  50 static inline int bla_tx(struct bat_priv *bat_priv, struct sk_buff *skb,
  51                          short vid)
  52 {
  53         return 0;
  54 }
  55
  56 static inline int bla_is_backbone_gw(struct sk_buff *skb,
  57                                      struct orig_node *orig_node,
  58                                      int hdr_size)
  59 {
  60         return 0;
  61 }
  62
  63 static inline int bla_claim_table_seq_print_text(struct seq_file *seq,
  64                                                  void *offset)
  65 {
  66         return 0;
  67 }
  68
  69 static inline int bla_is_backbone_gw_orig(struct bat_priv *bat_priv,
  70                                           uint8_t *orig)
  71 {
  72         return 0;
  73 }
  74
  75 static inline int bla_check_bcast_duplist(struct bat_priv *bat_priv,
  76                                           struct bcast_packet *bcast_packet,
  77                                           int hdr_size)
  78 {
  79         return 0;
  80 }
  81
  82 static inline void bla_update_orig_address(struct bat_priv *bat_priv,
  83                                            struct hard_iface *primary_if,
  84                                            struct hard_iface *oldif)
  85 {
  86 }
  87
  88 static inline int bla_init(struct bat_priv *bat_priv)
  89 {
  90         return 1;
  91 }
  92
  93 static inline void bla_free(struct bat_priv *bat_priv)
  94 {
  95 }
  96
  97 #endif /* ifdef CONFIG_BATMAN_ADV_BLA */
  98
  99 #endif /* ifndef _NET_BATMAN_ADV_BLA_H_ */