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Commit | Line | Data |
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718e3744 | 1 | /* BGP nexthop scan |
896014f4 DL |
2 | * Copyright (C) 2000 Kunihiro Ishiguro |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
718e3744 | 20 | |
00d252cb | 21 | #ifndef _QUAGGA_BGP_NEXTHOP_H |
22 | #define _QUAGGA_BGP_NEXTHOP_H | |
23 | ||
5304cb52 | 24 | #include "if.h" |
fb018d25 DS |
25 | #include "queue.h" |
26 | #include "prefix.h" | |
f663c581 | 27 | #include "bgp_table.h" |
5304cb52 | 28 | |
d62a17ae | 29 | #define NEXTHOP_FAMILY(nexthop_len) \ |
30 | (((nexthop_len) == 4 || (nexthop_len) == 12 \ | |
31 | ? AF_INET \ | |
32 | : ((nexthop_len) == 16 || (nexthop_len) == 24 \ | |
77e62f2b | 33 | || (nexthop_len) == 32 \ |
d62a17ae | 34 | || (nexthop_len) == 48 \ |
35 | ? AF_INET6 \ | |
36 | : AF_UNSPEC))) | |
95b9c671 | 37 | |
65efcfce LB |
38 | #define BGP_MP_NEXTHOP_FAMILY NEXTHOP_FAMILY |
39 | ||
f663c581 RW |
40 | PREDECL_RBTREE_UNIQ(bgp_nexthop_cache); |
41 | ||
718e3744 | 42 | /* BGP nexthop cache value structure. */ |
d62a17ae | 43 | struct bgp_nexthop_cache { |
f663c581 RW |
44 | /* RB-tree entry. */ |
45 | struct bgp_nexthop_cache_item entry; | |
46 | ||
d62a17ae | 47 | /* IGP route's metric. */ |
d7c0a89a | 48 | uint32_t metric; |
718e3744 | 49 | |
d62a17ae | 50 | /* Nexthop number and nexthop linked list.*/ |
d7c0a89a | 51 | uint8_t nexthop_num; |
d62a17ae | 52 | struct nexthop *nexthop; |
53 | time_t last_update; | |
d7c0a89a | 54 | uint16_t flags; |
fb018d25 | 55 | |
fc9a856f DS |
56 | #define BGP_NEXTHOP_VALID (1 << 0) |
57 | #define BGP_NEXTHOP_REGISTERED (1 << 1) | |
58 | #define BGP_NEXTHOP_CONNECTED (1 << 2) | |
59 | #define BGP_NEXTHOP_PEER_NOTIFIED (1 << 3) | |
078430f6 DS |
60 | #define BGP_STATIC_ROUTE (1 << 4) |
61 | #define BGP_STATIC_ROUTE_EXACT_MATCH (1 << 5) | |
960035b2 | 62 | #define BGP_NEXTHOP_LABELED_VALID (1 << 6) |
fb018d25 | 63 | |
d7c0a89a | 64 | uint16_t change_flags; |
fb018d25 | 65 | |
fc9a856f DS |
66 | #define BGP_NEXTHOP_CHANGED (1 << 0) |
67 | #define BGP_NEXTHOP_METRIC_CHANGED (1 << 1) | |
68 | #define BGP_NEXTHOP_CONNECTED_CHANGED (1 << 2) | |
fb018d25 | 69 | |
f663c581 RW |
70 | /* Back pointer to the cache tree this entry belongs to. */ |
71 | struct bgp_nexthop_cache_head *tree; | |
72 | ||
545aeef1 | 73 | uint32_t srte_color; |
f663c581 | 74 | struct prefix prefix; |
d62a17ae | 75 | void *nht_info; /* In BGP, peer session */ |
4b7e6066 | 76 | LIST_HEAD(path_list, bgp_path_info) paths; |
d62a17ae | 77 | unsigned int path_count; |
78 | struct bgp *bgp; | |
718e3744 | 79 | }; |
80 | ||
f663c581 RW |
81 | extern int bgp_nexthop_cache_compare(const struct bgp_nexthop_cache *a, |
82 | const struct bgp_nexthop_cache *b); | |
83 | DECLARE_RBTREE_UNIQ(bgp_nexthop_cache, struct bgp_nexthop_cache, entry, | |
84 | bgp_nexthop_cache_compare); | |
85 | ||
db0e1937 MK |
86 | /* Own tunnel-ip address structure */ |
87 | struct tip_addr { | |
88 | struct in_addr addr; | |
89 | int refcnt; | |
90 | }; | |
91 | ||
737af885 BS |
92 | struct bgp_addrv6 { |
93 | struct in6_addr addrv6; | |
94 | struct list *ifp_name_list; | |
95 | }; | |
96 | ||
f663c581 RW |
97 | /* Forward declaration(s). */ |
98 | struct peer; | |
99 | struct update_subgroup; | |
100 | struct bgp_dest; | |
101 | struct attr; | |
102 | ||
d62a17ae | 103 | extern void bgp_connected_add(struct bgp *bgp, struct connected *c); |
104 | extern void bgp_connected_delete(struct bgp *bgp, struct connected *c); | |
3dc339cd DA |
105 | extern bool bgp_subgrp_multiaccess_check_v4(struct in_addr nexthop, |
106 | struct update_subgroup *subgrp, | |
107 | struct peer *exclude); | |
108 | extern bool bgp_subgrp_multiaccess_check_v6(struct in6_addr nexthop, | |
109 | struct update_subgroup *subgrp, | |
110 | struct peer *exclude); | |
111 | extern bool bgp_multiaccess_check_v4(struct in_addr nexthop, struct peer *peer); | |
112 | extern bool bgp_multiaccess_check_v6(struct in6_addr nexthop, | |
113 | struct peer *peer); | |
d62a17ae | 114 | extern int bgp_config_write_scan_time(struct vty *); |
3dc339cd DA |
115 | extern bool bgp_nexthop_self(struct bgp *bgp, afi_t afi, uint8_t type, |
116 | uint8_t sub_type, struct attr *attr, | |
9bcb3eef | 117 | struct bgp_dest *dest); |
f663c581 | 118 | extern struct bgp_nexthop_cache *bnc_new(struct bgp_nexthop_cache_head *tree, |
545aeef1 RW |
119 | struct prefix *prefix, |
120 | uint32_t srte_color); | |
e37e1e27 | 121 | extern bool bnc_existing_for_prefix(struct bgp_nexthop_cache *bnc); |
fb018d25 | 122 | extern void bnc_free(struct bgp_nexthop_cache *bnc); |
f663c581 | 123 | extern struct bgp_nexthop_cache *bnc_find(struct bgp_nexthop_cache_head *tree, |
545aeef1 RW |
124 | struct prefix *prefix, |
125 | uint32_t srte_color); | |
fb018d25 | 126 | extern void bnc_nexthop_free(struct bgp_nexthop_cache *bnc); |
f663c581 | 127 | extern const char *bnc_str(struct bgp_nexthop_cache *bnc, char *buf, int size); |
6aeb9e78 DS |
128 | extern void bgp_scan_init(struct bgp *bgp); |
129 | extern void bgp_scan_finish(struct bgp *bgp); | |
ffd0c037 | 130 | extern void bgp_scan_vty_init(void); |
d62a17ae | 131 | extern void bgp_address_init(struct bgp *bgp); |
132 | extern void bgp_address_destroy(struct bgp *bgp); | |
db0e1937 MK |
133 | extern void bgp_tip_add(struct bgp *bgp, struct in_addr *tip); |
134 | extern void bgp_tip_del(struct bgp *bgp, struct in_addr *tip); | |
135 | extern void bgp_tip_hash_init(struct bgp *bgp); | |
136 | extern void bgp_tip_hash_destroy(struct bgp *bgp); | |
00d252cb | 137 | |
af97a18b | 138 | extern void bgp_nexthop_show_address_hash(struct vty *vty, struct bgp *bgp); |
00d252cb | 139 | #endif /* _QUAGGA_BGP_NEXTHOP_H */ |