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 int bla_tx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid);
  28 int bla_is_backbone_gw(struct sk_buff *skb,
  29                        struct orig_node *orig_node, int hdr_size);
  30 int bla_claim_table_seq_print_text(struct seq_file *seq, void *offset);
  31 int bla_is_backbone_gw_orig(struct bat_priv *bat_priv, uint8_t *orig);
  32 int bla_check_bcast_duplist(struct bat_priv *bat_priv,
  33                             struct bcast_packet *bcast_packet, int hdr_size);
  34 void bla_update_orig_address(struct bat_priv *bat_priv,
  35                              struct hard_iface *primary_if,
  36                              struct hard_iface *oldif);
  37 int bla_init(struct bat_priv *bat_priv);
  38 void bla_free(struct bat_priv *bat_priv);
  39
  40 #define BLA_CRC_INIT    0
  41 #else /* ifdef CONFIG_BATMAN_ADV_BLA */
  42
  43 static inline int bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb,
  44                          short vid)
  45 {
  46         return 0;
  47 }
  48
  49 static inline int bla_tx(struct bat_priv *bat_priv, struct sk_buff *skb,
  50                          short vid)
  51 {
  52         return 0;
  53 }
  54
  55 static inline int bla_is_backbone_gw(struct sk_buff *skb,
  56                                      struct orig_node *orig_node,
  57                                      int hdr_size)
  58 {
  59         return 0;
  60 }
  61
  62 static inline int bla_claim_table_seq_print_text(struct seq_file *seq,
  63                                                  void *offset)
  64 {
  65         return 0;
  66 }
  67
  68 static inline int bla_is_backbone_gw_orig(struct bat_priv *bat_priv,
  69                                           uint8_t *orig)
  70 {
  71         return 0;
  72 }
  73
  74 static inline int bla_check_bcast_duplist(struct bat_priv *bat_priv,
  75                                           struct bcast_packet *bcast_packet,
  76                                           int hdr_size)
  77 {
  78         return 0;
  79 }
  80
  81 static inline void bla_update_orig_address(struct bat_priv *bat_priv,
  82                                            struct hard_iface *primary_if,
  83                                            struct hard_iface *oldif)
  84 {
  85 }
  86
  87 static inline int bla_init(struct bat_priv *bat_priv)
  88 {
  89         return 1;
  90 }
  91
  92 static inline void bla_free(struct bat_priv *bat_priv)
  93 {
  94 }
  95
  96 #endif /* ifdef CONFIG_BATMAN_ADV_BLA */
  97
  98 #endif /* ifndef _NET_BATMAN_ADV_BLA_H_ */