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/**
* bfd.h: BFD definitions and structures
*
* @copyright Copyright (C) 2015 Cumulus Networks, Inc.
*
* This file is part of GNU Zebra.
*
* GNU Zebra is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* GNU Zebra is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Zebra; see the file COPYING. If not, write to the Free
* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#ifndef _ZEBRA_BFD_H
#define _ZEBRA_BFD_H
#include "lib/json.h"
#define BFD_DEF_MIN_RX 300
#define BFD_MIN_MIN_RX 50
#define BFD_MAX_MIN_RX 60000
#define BFD_DEF_MIN_TX 300
#define BFD_MIN_MIN_TX 50
#define BFD_MAX_MIN_TX 60000
#define BFD_DEF_DETECT_MULT 3
#define BFD_MIN_DETECT_MULT 2
#define BFD_MAX_DETECT_MULT 255
#define BFD_GBL_FLAG_IN_SHUTDOWN (1 << 0) /* The daemon in shutdown */
struct bfd_gbl
{
u_int16_t flags;
};
#define BFD_FLAG_PARAM_CFG (1 << 0) /* parameters have been configured */
#define BFD_FLAG_BFD_REG (1 << 1) /* Peer registered with BFD */
#define BFD_FLAG_BFD_TYPE_MULTIHOP (1 << 2) /* Peer registered with BFD as multihop */
#define BFD_STATUS_UNKNOWN (1 << 0) /* BFD session status never received */
#define BFD_STATUS_DOWN (1 << 1) /* BFD session status is down */
#define BFD_STATUS_UP (1 << 2) /* BFD session status is up */
enum bfd_sess_type {
BFD_TYPE_NOT_CONFIGURED,
BFD_TYPE_SINGLEHOP,
BFD_TYPE_MULTIHOP
};
struct bfd_info
{
u_int16_t flags;
u_int8_t detect_mult;
u_int32_t desired_min_tx;
u_int32_t required_min_rx;
time_t last_update;
u_int8_t status;
enum bfd_sess_type type;
};
extern struct bfd_info *
bfd_info_create(void);
extern void
bfd_info_free(struct bfd_info **bfd_info);
extern int
bfd_validate_param(struct vty *vty, const char *dm_str, const char *rx_str,
const char *tx_str, u_int8_t *dm_val, u_int32_t *rx_val,
u_int32_t *tx_val);
extern void
bfd_set_param (struct bfd_info **bfd_info, u_int32_t min_rx, u_int32_t min_tx,
u_int8_t detect_mult, int defaults, int *command);
extern void
bfd_peer_sendmsg (struct zclient *zclient, struct bfd_info *bfd_info,
int family, void *dst_ip, void *src_ip, char *if_name,
int ttl, int multihop, int command, int set_flag,
vrf_id_t vrf_id);
extern const char *
bfd_get_command_dbg_str(int command);
extern struct interface *
bfd_get_peer_info (struct stream *s, struct prefix *dp, struct prefix *sp,
int *status, vrf_id_t vrf_id);
const char *
bfd_get_status_str(int status);
extern void
bfd_show_param(struct vty *vty, struct bfd_info *bfd_info, int bfd_tag,
int extra_space, u_char use_json, json_object *json_obj);
extern void
bfd_show_info(struct vty *vty, struct bfd_info *bfd_info, int multihop,
int extra_space, u_char use_json, json_object *json_obj);
extern void
bfd_client_sendmsg (struct zclient *zclient, int command);
extern void
bfd_gbl_init(void);
extern void
bfd_gbl_exit(void);
#endif /* _ZEBRA_BFD_H */
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