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1bc98276 CS |
1 | /* |
2 | * PIM for Quagga | |
3 | * Copyright (C) 2017 Cumulus Networks, Inc. | |
4 | * Chirag Shah | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program 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 | |
1bc98276 CS |
19 | */ |
20 | #ifndef PIM_NHT_H | |
21 | #define PIM_NHT_H | |
22 | ||
23 | #include "prefix.h" | |
24 | #include <zebra.h> | |
25 | #include "zclient.h" | |
26 | #include "vrf.h" | |
27 | ||
28 | #include "pimd.h" | |
29 | #include "pim_rp.h" | |
30 | #include "pim_rpf.h" | |
31 | ||
32 | /* PIM nexthop cache value structure. */ | |
d62a17ae | 33 | struct pim_nexthop_cache { |
34 | struct pim_rpf rpf; | |
35 | /* IGP route's metric. */ | |
d7c0a89a | 36 | uint32_t metric; |
d62a17ae | 37 | uint32_t distance; |
38 | /* Nexthop number and nexthop linked list. */ | |
d7c0a89a | 39 | uint8_t nexthop_num; |
d62a17ae | 40 | struct nexthop *nexthop; |
41 | int64_t last_update; | |
d7c0a89a | 42 | uint16_t flags; |
1bc98276 | 43 | #define PIM_NEXTHOP_VALID (1 << 0) |
2cb7234f | 44 | #define PIM_NEXTHOP_ANSWER_RECEIVED (1 << 1) |
1bc98276 | 45 | |
d62a17ae | 46 | struct list *rp_list; |
7c591950 | 47 | struct hash *upstream_hash; |
4533b847 | 48 | /* Ideally this has to be list of scope zone. But for now we can just |
49 | * have as a bool variable to say bsr_tracking. | |
50 | * Later this variable can be changed as a list of scope zones for | |
51 | * tracking same bsr for multiple scope zones. | |
52 | */ | |
53 | bool bsr_tracking; | |
1bc98276 CS |
54 | }; |
55 | ||
121f9dee | 56 | int pim_parse_nexthop_update(ZAPI_CALLBACK_ARGS); |
25bdac42 DS |
57 | int pim_find_or_track_nexthop(struct pim_instance *pim, struct prefix *addr, |
58 | struct pim_upstream *up, struct rp_info *rp, | |
4533b847 | 59 | bool bsr_track_needed, |
d62a17ae | 60 | struct pim_nexthop_cache *out_pnc); |
d0a4f55d | 61 | void pim_delete_tracked_nexthop(struct pim_instance *pim, struct prefix *addr, |
4533b847 | 62 | struct pim_upstream *up, struct rp_info *rp, |
63 | bool del_bsr_tracking); | |
d0a4f55d DS |
64 | struct pim_nexthop_cache *pim_nexthop_cache_find(struct pim_instance *pim, |
65 | struct pim_rpf *rpf); | |
d62a17ae | 66 | uint32_t pim_compute_ecmp_hash(struct prefix *src, struct prefix *grp); |
25b787a2 | 67 | int pim_ecmp_nexthop_lookup(struct pim_instance *pim, |
b938537b DS |
68 | struct pim_nexthop *nexthop, struct prefix *src, |
69 | struct prefix *grp, int neighbor_needed); | |
64c86530 | 70 | void pim_sendmsg_zebra_rnh(struct pim_instance *pim, struct zclient *zclient, |
d62a17ae | 71 | struct pim_nexthop_cache *pnc, int command); |
25b787a2 | 72 | int pim_ecmp_fib_lookup_if_vif_index(struct pim_instance *pim, |
b938537b | 73 | struct prefix *src, struct prefix *grp); |
640b8d93 | 74 | void pim_rp_nexthop_del(struct rp_info *rp_info); |
4b936634 | 75 | bool pim_nexthop_match(struct pim_instance *pim, struct in_addr addr, |
76 | struct in_addr ip_src); | |
77 | bool pim_nexthop_match_nht_cache(struct pim_instance *pim, struct in_addr addr, | |
78 | struct in_addr ip_src); | |
79 | ||
1bc98276 | 80 | #endif |