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- /* BGP nexthop scan
- Copyright (C) 2000 Kunihiro Ishiguro
- 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 _QUAGGA_BGP_NEXTHOP_H
- #define _QUAGGA_BGP_NEXTHOP_H
- #include "if.h"
- #include "queue.h"
- #include "prefix.h"
- #define NEXTHOP_FAMILY(nexthop_len) ( \
- ((nexthop_len) == 4 || \
- (nexthop_len) == 12 ? AF_INET : \
- ((nexthop_len) == 16 || \
- (nexthop_len) == 24 || \
- (nexthop_len) == 48 ? AF_INET6 : \
- AF_UNSPEC)) \
- )
- /* BGP nexthop cache value structure. */
- struct bgp_nexthop_cache
- {
- /* IGP route's metric. */
- u_int32_t metric;
- /* Nexthop number and nexthop linked list.*/
- u_char nexthop_num;
- struct nexthop *nexthop;
- time_t last_update;
- u_int16_t flags;
- #define BGP_NEXTHOP_VALID (1 << 0)
- #define BGP_NEXTHOP_REGISTERED (1 << 1)
- #define BGP_NEXTHOP_CONNECTED (1 << 2)
- #define BGP_NEXTHOP_PEER_NOTIFIED (1 << 3)
- u_int16_t change_flags;
- #define BGP_NEXTHOP_CHANGED (1 << 0)
- #define BGP_NEXTHOP_METRIC_CHANGED (1 << 1)
- #define BGP_NEXTHOP_CONNECTED_CHANGED (1 << 2)
- struct bgp_node *node;
- void *nht_info; /* In BGP, peer session */
- LIST_HEAD(path_list, bgp_info) paths;
- unsigned int path_count;
- };
- extern int bgp_nexthop_lookup (afi_t, struct peer *peer, struct bgp_info *,
- int *, int *);
- extern void bgp_connected_add (struct connected *c);
- extern void bgp_connected_delete (struct connected *c);
- extern int bgp_multiaccess_check_v4 (struct in_addr, struct peer *);
- extern int bgp_config_write_scan_time (struct vty *);
- extern int bgp_nexthop_onlink (afi_t, struct attr *);
- extern int bgp_nexthop_self (struct attr *);
- extern void bgp_address_init (void);
- extern void bgp_address_destroy (void);
- extern void bgp_scan_destroy (void);
- extern struct bgp_nexthop_cache *bnc_new(void);
- extern void bnc_free(struct bgp_nexthop_cache *bnc);
- extern void bnc_nexthop_free(struct bgp_nexthop_cache *bnc);
- extern char *bnc_str(struct bgp_nexthop_cache *bnc, char *buf, int size);
- extern void bgp_scan_init (void);
- extern void bgp_scan_vty_init (void);
- #endif /* _QUAGGA_BGP_NEXTHOP_H */
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