lib/bfd.h

   1 /**
   2  * bfd.h: BFD definitions and structures
   3  *
   4  * @copyright Copyright (C) 2015 Cumulus Networks, Inc.
   5  *
   6  * This file is part of GNU Zebra.
   7  *
   8  * GNU Zebra is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License as published by the
  10  * Free Software Foundation; either version 2, or (at your option) any
  11  * later version.
  12  *
  13  * GNU Zebra is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with GNU Zebra; see the file COPYING.  If not, write to the Free
  20  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  21  * 02111-1307, USA.
  22  */
  23
  24 #ifndef _ZEBRA_BFD_H
  25 #define _ZEBRA_BFD_H
  26
  27 #define BFD_CMD_DETECT_MULT_RANGE "<2-255> "
  28 #define BFD_CMD_MIN_RX_RANGE "<50-60000> "
  29 #define BFD_CMD_MIN_TX_RANGE "<50-60000>"
  30
  31 #define BFD_DEF_MIN_RX 300
  32 #define BFD_MIN_MIN_RX 50
  33 #define BFD_MAX_MIN_RX 60000
  34 #define BFD_DEF_MIN_TX 300
  35 #define BFD_MIN_MIN_TX 50
  36 #define BFD_MAX_MIN_TX 60000
  37 #define BFD_DEF_DETECT_MULT 3
  38 #define BFD_MIN_DETECT_MULT 2
  39 #define BFD_MAX_DETECT_MULT 255
  40
  41 #define BFD_FLAG_PARAM_CFG (1 << 0) /* parameters have been configured */
  42 #define BFD_FLAG_BFD_REG   (1 << 1) /* Peer registered with BFD */
  43
  44 struct bfd_info
  45 {
  46   u_int16_t flags;
  47   u_int8_t  detect_mult;
  48   u_int32_t desired_min_tx;
  49   u_int32_t required_min_rx;
  50 };
  51
  52 extern struct bfd_info *
  53 bfd_info_create(void);
  54
  55 extern void
  56 bfd_info_free(void **bfd_info);
  57
  58 extern int
  59 bfd_validate_param(struct vty *vty, const char *dm_str, const char *rx_str,
  60                    const char *tx_str, u_int8_t *dm_val, u_int32_t *rx_val,
  61                    u_int32_t *tx_val);
  62
  63 extern void
  64 bfd_set_param (struct bfd_info **bfd_info, u_int32_t min_rx, u_int32_t min_tx,
  65                u_int8_t detect_mult, int defaults, int *command);
  66 extern void
  67 bfd_peer_sendmsg (struct zclient *zclient, struct bfd_info *bfd_info,
  68                   int family, void *dst_ip, void *src_ip, char *if_name,
  69                   int ttl, int multihop, int command, int set_flag);
  70
  71 extern const char *
  72 bfd_get_command_dbg_str(int command);
  73
  74 extern struct interface *
  75 bfd_get_peer_info (struct stream *s, struct prefix *dp, struct prefix *sp);
  76
  77 #endif /* _ZEBRA_BFD_H */