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2 * Copyright (C) 2000 Kunihiro Ishiguro
4 * This file is part of GNU Zebra.
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
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.
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
21 #ifndef _QUAGGA_BGP_NEXTHOP_H
22 #define _QUAGGA_BGP_NEXTHOP_H
28 #define NEXTHOP_FAMILY(nexthop_len) \
29 (((nexthop_len) == 4 || (nexthop_len) == 12 \
31 : ((nexthop_len) == 16 || (nexthop_len) == 24 \
32 || (nexthop_len) == 32 \
33 || (nexthop_len) == 48 \
37 #define BGP_MP_NEXTHOP_FAMILY NEXTHOP_FAMILY
39 /* BGP nexthop cache value structure. */
40 struct bgp_nexthop_cache
{
41 /* IGP route's metric. */
44 /* Nexthop number and nexthop linked list.*/
46 struct nexthop
*nexthop
;
50 #define BGP_NEXTHOP_VALID (1 << 0)
51 #define BGP_NEXTHOP_REGISTERED (1 << 1)
52 #define BGP_NEXTHOP_CONNECTED (1 << 2)
53 #define BGP_NEXTHOP_PEER_NOTIFIED (1 << 3)
54 #define BGP_STATIC_ROUTE (1 << 4)
55 #define BGP_STATIC_ROUTE_EXACT_MATCH (1 << 5)
56 #define BGP_NEXTHOP_LABELED_VALID (1 << 6)
58 uint16_t change_flags
;
60 #define BGP_NEXTHOP_CHANGED (1 << 0)
61 #define BGP_NEXTHOP_METRIC_CHANGED (1 << 1)
62 #define BGP_NEXTHOP_CONNECTED_CHANGED (1 << 2)
64 struct bgp_dest
*dest
;
65 void *nht_info
; /* In BGP, peer session */
66 LIST_HEAD(path_list
, bgp_path_info
) paths
;
67 unsigned int path_count
;
71 /* Own tunnel-ip address structure */
78 struct in6_addr addrv6
;
79 struct list
*ifp_name_list
;
82 extern void bgp_connected_add(struct bgp
*bgp
, struct connected
*c
);
83 extern void bgp_connected_delete(struct bgp
*bgp
, struct connected
*c
);
84 extern bool bgp_subgrp_multiaccess_check_v4(struct in_addr nexthop
,
85 struct update_subgroup
*subgrp
,
86 struct peer
*exclude
);
87 extern bool bgp_subgrp_multiaccess_check_v6(struct in6_addr nexthop
,
88 struct update_subgroup
*subgrp
,
89 struct peer
*exclude
);
90 extern bool bgp_multiaccess_check_v4(struct in_addr nexthop
, struct peer
*peer
);
91 extern bool bgp_multiaccess_check_v6(struct in6_addr nexthop
,
93 extern int bgp_config_write_scan_time(struct vty
*);
94 extern bool bgp_nexthop_self(struct bgp
*bgp
, afi_t afi
, uint8_t type
,
95 uint8_t sub_type
, struct attr
*attr
,
96 struct bgp_dest
*dest
);
97 extern struct bgp_nexthop_cache
*bnc_new(void);
98 extern void bnc_free(struct bgp_nexthop_cache
*bnc
);
99 extern void bnc_nexthop_free(struct bgp_nexthop_cache
*bnc
);
100 extern char *bnc_str(struct bgp_nexthop_cache
*bnc
, char *buf
, int size
);
101 extern void bgp_scan_init(struct bgp
*bgp
);
102 extern void bgp_scan_finish(struct bgp
*bgp
);
103 extern void bgp_scan_vty_init(void);
104 extern void bgp_address_init(struct bgp
*bgp
);
105 extern void bgp_address_destroy(struct bgp
*bgp
);
106 extern void bgp_tip_add(struct bgp
*bgp
, struct in_addr
*tip
);
107 extern void bgp_tip_del(struct bgp
*bgp
, struct in_addr
*tip
);
108 extern void bgp_tip_hash_init(struct bgp
*bgp
);
109 extern void bgp_tip_hash_destroy(struct bgp
*bgp
);
111 extern void bgp_nexthop_show_address_hash(struct vty
*vty
, struct bgp
*bgp
);
112 #endif /* _QUAGGA_BGP_NEXTHOP_H */