projects / mirror_frr.git / blame
| Commit | Line | Data |
|---|---|---|
| fb018d25 DS |
1 | /* BGP Nexthop tracking |
| 2 | * Copyright (C) 2013 Cumulus Networks, Inc. | |
| 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 | * | |
| 896014f4 DL |
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 | |
| fb018d25 DS |
19 | */ |
| 20 | ||
| 21 | #ifndef _BGP_NHT_H | |
| 22 | #define _BGP_NHT_H | |
| 23 | ||
| 24 | /** | |
| 25 | * bgp_parse_nexthop_update() - parse a nexthop update message from Zebra. | |
| 26 | */ | |
| 7076bb2f | 27 | extern void bgp_parse_nexthop_update(int command, vrf_id_t vrf_id); |
| fb018d25 DS |
28 | |
| 29 | /** | |
| 30 | * bgp_find_nexthop() - lookup the nexthop cache table for the bnc object | |
| 31 | * ARGUMENTS: | |
| 32 | * p - path for which the nexthop object is being looked up | |
| fc9a856f | 33 | * connected - True if NH MUST be a connected route |
| fb018d25 | 34 | */ |
| fc9a856f | 35 | extern int bgp_find_nexthop(struct bgp_info *p, int connected); |
| fb018d25 DS |
36 | |
| 37 | /** | |
| 38 | * bgp_find_or_add_nexthop() - lookup the nexthop cache table for the bnc | |
| 39 | * object. If not found, create a new object and register with ZEBRA for | |
| 40 | * nexthop notification. | |
| 41 | * ARGUMENTS: | |
| 960035b2 PZ |
42 | * bgp_route - BGP instance of route |
| 43 | * bgp_nexthop - BGP instance of nexthop | |
| fb018d25 DS |
44 | * a - afi: AFI_IP or AF_IP6 |
| 45 | * p - path for which the nexthop object is being looked up | |
| fc9a856f DS |
46 | * peer - The BGP peer associated with this NHT |
| 47 | * connected - True if NH MUST be a connected route | |
| fb018d25 | 48 | */ |
| 960035b2 PZ |
49 | extern int bgp_find_or_add_nexthop(struct bgp *bgp_route, |
| 50 | struct bgp *bgp_nexthop, afi_t a, struct bgp_info *p, | |
| 51 | struct peer *peer, int connected); | |
| fb018d25 DS |
52 | |
| 53 | /** | |
| 54 | * bgp_unlink_nexthop() - Unlink the nexthop object from the path structure. | |
| 55 | * ARGUMENTS: | |
| 56 | * p - path structure. | |
| 57 | */ | |
| 58 | extern void bgp_unlink_nexthop(struct bgp_info *p); | |
| d62a17ae | 59 | void bgp_unlink_nexthop_by_peer(struct peer *); |
| fb018d25 | 60 | |
| 9a233a02 DS |
61 | /** |
| 62 | * bgp_delete_connected_nexthop() - Reset the 'peer' pointer for a connected | |
| 63 | * nexthop entry. If no paths reference the nexthop, it will be unregistered | |
| 64 | * and freed. | |
| 65 | * ARGUMENTS: | |
| 66 | * afi - afi: AFI_IP or AF_IP6 | |
| 67 | * peer - Ptr to peer | |
| 68 | */ | |
| d62a17ae | 69 | extern void bgp_delete_connected_nexthop(afi_t afi, struct peer *peer); |
| 9a233a02 | 70 | |
| ee7ca6c0 | 71 | /* |
| 72 | * Cleanup nexthop registration and status information for BGP nexthops | |
| 73 | * pertaining to this VRF. This is invoked upon VRF deletion. | |
| 74 | */ | |
| 75 | extern void bgp_cleanup_nexthops(struct bgp *bgp); | |
| 76 | ||
| fb018d25 | 77 | #endif /* _BGP_NHT_H */ |