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7f342629 DS |
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 | ||
68fe91d6 | 27 | #include "lib/json.h" |
28 | ||
7f342629 DS |
29 | #define BFD_DEF_MIN_RX 300 |
30 | #define BFD_MIN_MIN_RX 50 | |
31 | #define BFD_MAX_MIN_RX 60000 | |
32 | #define BFD_DEF_MIN_TX 300 | |
33 | #define BFD_MIN_MIN_TX 50 | |
34 | #define BFD_MAX_MIN_TX 60000 | |
35 | #define BFD_DEF_DETECT_MULT 3 | |
36 | #define BFD_MIN_DETECT_MULT 2 | |
37 | #define BFD_MAX_DETECT_MULT 255 | |
38 | ||
567b877d | 39 | #define BFD_GBL_FLAG_IN_SHUTDOWN (1 << 0) /* The daemon in shutdown */ |
40 | struct bfd_gbl | |
41 | { | |
42 | u_int16_t flags; | |
43 | }; | |
44 | ||
7f342629 DS |
45 | #define BFD_FLAG_PARAM_CFG (1 << 0) /* parameters have been configured */ |
46 | #define BFD_FLAG_BFD_REG (1 << 1) /* Peer registered with BFD */ | |
986aa00f | 47 | #define BFD_FLAG_BFD_TYPE_MULTIHOP (1 << 2) /* Peer registered with BFD as multihop */ |
7f342629 | 48 | |
68fe91d6 | 49 | #define BFD_STATUS_UNKNOWN (1 << 0) /* BFD session status never received */ |
50 | #define BFD_STATUS_DOWN (1 << 1) /* BFD session status is down */ | |
51 | #define BFD_STATUS_UP (1 << 2) /* BFD session status is up */ | |
52 | ||
986aa00f | 53 | enum bfd_sess_type { |
54 | BFD_TYPE_NOT_CONFIGURED, | |
55 | BFD_TYPE_SINGLEHOP, | |
56 | BFD_TYPE_MULTIHOP | |
57 | }; | |
58 | ||
7f342629 DS |
59 | struct bfd_info |
60 | { | |
986aa00f | 61 | u_int16_t flags; |
62 | u_int8_t detect_mult; | |
63 | u_int32_t desired_min_tx; | |
64 | u_int32_t required_min_rx; | |
65 | time_t last_update; | |
66 | u_int8_t status; | |
67 | enum bfd_sess_type type; | |
7f342629 DS |
68 | }; |
69 | ||
70 | extern struct bfd_info * | |
71 | bfd_info_create(void); | |
72 | ||
73 | extern void | |
88177fe3 | 74 | bfd_info_free(struct bfd_info **bfd_info); |
7f342629 DS |
75 | |
76 | extern int | |
77 | bfd_validate_param(struct vty *vty, const char *dm_str, const char *rx_str, | |
78 | const char *tx_str, u_int8_t *dm_val, u_int32_t *rx_val, | |
79 | u_int32_t *tx_val); | |
80 | ||
81 | extern void | |
82 | bfd_set_param (struct bfd_info **bfd_info, u_int32_t min_rx, u_int32_t min_tx, | |
83 | u_int8_t detect_mult, int defaults, int *command); | |
84 | extern void | |
85 | bfd_peer_sendmsg (struct zclient *zclient, struct bfd_info *bfd_info, | |
86 | int family, void *dst_ip, void *src_ip, char *if_name, | |
7076bb2f FL |
87 | int ttl, int multihop, int command, int set_flag, |
88 | vrf_id_t vrf_id); | |
7f342629 DS |
89 | |
90 | extern const char * | |
91 | bfd_get_command_dbg_str(int command); | |
92 | ||
93 | extern struct interface * | |
68fe91d6 | 94 | bfd_get_peer_info (struct stream *s, struct prefix *dp, struct prefix *sp, |
1e22a2af | 95 | int *status, vrf_id_t vrf_id); |
68fe91d6 | 96 | |
97 | const char * | |
98 | bfd_get_status_str(int status); | |
99 | ||
100 | extern void | |
101 | bfd_show_param(struct vty *vty, struct bfd_info *bfd_info, int bfd_tag, | |
102 | int extra_space, u_char use_json, json_object *json_obj); | |
103 | ||
104 | extern void | |
105 | bfd_show_info(struct vty *vty, struct bfd_info *bfd_info, int multihop, | |
106 | int extra_space, u_char use_json, json_object *json_obj); | |
7f342629 | 107 | |
055c4dfc | 108 | extern void |
109 | bfd_client_sendmsg (struct zclient *zclient, int command); | |
110 | ||
567b877d | 111 | extern void |
112 | bfd_gbl_init(void); | |
113 | ||
114 | extern void | |
115 | bfd_gbl_exit(void); | |
116 | ||
7f342629 | 117 | #endif /* _ZEBRA_BFD_H */ |