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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" | |
5304cb52 | 27 | |
d62a17ae | 28 | #define NEXTHOP_FAMILY(nexthop_len) \ |
29 | (((nexthop_len) == 4 || (nexthop_len) == 12 \ | |
30 | ? AF_INET \ | |
31 | : ((nexthop_len) == 16 || (nexthop_len) == 24 \ | |
32 | || (nexthop_len) == 48 \ | |
33 | ? AF_INET6 \ | |
34 | : AF_UNSPEC))) | |
95b9c671 | 35 | |
65efcfce LB |
36 | #define BGP_MP_NEXTHOP_FAMILY NEXTHOP_FAMILY |
37 | ||
718e3744 | 38 | /* BGP nexthop cache value structure. */ |
d62a17ae | 39 | struct bgp_nexthop_cache { |
40 | /* IGP route's metric. */ | |
41 | u_int32_t metric; | |
718e3744 | 42 | |
d62a17ae | 43 | /* Nexthop number and nexthop linked list.*/ |
44 | u_char nexthop_num; | |
45 | struct nexthop *nexthop; | |
46 | time_t last_update; | |
47 | u_int16_t flags; | |
fb018d25 | 48 | |
fc9a856f DS |
49 | #define BGP_NEXTHOP_VALID (1 << 0) |
50 | #define BGP_NEXTHOP_REGISTERED (1 << 1) | |
51 | #define BGP_NEXTHOP_CONNECTED (1 << 2) | |
52 | #define BGP_NEXTHOP_PEER_NOTIFIED (1 << 3) | |
078430f6 DS |
53 | #define BGP_STATIC_ROUTE (1 << 4) |
54 | #define BGP_STATIC_ROUTE_EXACT_MATCH (1 << 5) | |
fb018d25 | 55 | |
d62a17ae | 56 | u_int16_t change_flags; |
fb018d25 | 57 | |
fc9a856f DS |
58 | #define BGP_NEXTHOP_CHANGED (1 << 0) |
59 | #define BGP_NEXTHOP_METRIC_CHANGED (1 << 1) | |
60 | #define BGP_NEXTHOP_CONNECTED_CHANGED (1 << 2) | |
fb018d25 | 61 | |
d62a17ae | 62 | struct bgp_node *node; |
63 | void *nht_info; /* In BGP, peer session */ | |
64 | LIST_HEAD(path_list, bgp_info) paths; | |
65 | unsigned int path_count; | |
66 | struct bgp *bgp; | |
718e3744 | 67 | }; |
68 | ||
d62a17ae | 69 | extern int bgp_nexthop_lookup(afi_t, struct peer *peer, struct bgp_info *, |
70 | int *, int *); | |
71 | extern void bgp_connected_add(struct bgp *bgp, struct connected *c); | |
72 | extern void bgp_connected_delete(struct bgp *bgp, struct connected *c); | |
73 | extern int bgp_multiaccess_check_v4(struct in_addr, struct peer *); | |
74 | extern int bgp_config_write_scan_time(struct vty *); | |
75 | extern int bgp_nexthop_self(struct bgp *, struct in_addr); | |
ffd0c037 | 76 | extern struct bgp_nexthop_cache *bnc_new(void); |
fb018d25 DS |
77 | extern void bnc_free(struct bgp_nexthop_cache *bnc); |
78 | extern void bnc_nexthop_free(struct bgp_nexthop_cache *bnc); | |
79 | extern char *bnc_str(struct bgp_nexthop_cache *bnc, char *buf, int size); | |
6aeb9e78 DS |
80 | extern void bgp_scan_init(struct bgp *bgp); |
81 | extern void bgp_scan_finish(struct bgp *bgp); | |
ffd0c037 | 82 | extern void bgp_scan_vty_init(void); |
d62a17ae | 83 | extern void bgp_address_init(struct bgp *bgp); |
84 | extern void bgp_address_destroy(struct bgp *bgp); | |
00d252cb | 85 | |
86 | #endif /* _QUAGGA_BGP_NEXTHOP_H */ |