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1 | /* |
2 | * SHARP - code to track nexthops | |
3 | * Copyright (C) Cumulus Networks, Inc. | |
4 | * Donald Sharp | |
5 | * | |
6 | * This file is part of FRR. | |
7 | * | |
8 | * FRR is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License as published by the | |
10 | * Free Software Foundation; either version 2, or (at your option) any | |
11 | * later version. | |
12 | * | |
13 | * FRR is distributed in the hope that it will be useful, but | |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License along | |
19 | * with this program; see the file COPYING; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
21 | */ | |
22 | #include <zebra.h> | |
23 | ||
24 | #include "memory.h" | |
25 | #include "nexthop.h" | |
26 | #include "nexthop_group.h" | |
27 | #include "vty.h" | |
28 | ||
29 | #include "sharp_nht.h" | |
30 | #include "sharp_globals.h" | |
31 | ||
32 | DEFINE_MTYPE_STATIC(SHARPD, NH_TRACKER, "Nexthop Tracker") | |
33 | ||
34 | struct sharp_nh_tracker *sharp_nh_tracker_get(struct prefix *p) | |
35 | { | |
36 | struct listnode *node; | |
37 | struct sharp_nh_tracker *nht; | |
38 | ||
39 | for (ALL_LIST_ELEMENTS_RO(sg.nhs, node, nht)) { | |
40 | if (prefix_same(&nht->p, p)) | |
41 | break; | |
42 | } | |
43 | ||
44 | if (nht) | |
45 | return nht; | |
46 | ||
47 | nht = XCALLOC(MTYPE_NH_TRACKER, sizeof(*nht)); | |
48 | prefix_copy(&nht->p, p); | |
49 | ||
50 | listnode_add(sg.nhs, nht); | |
51 | return nht; | |
52 | } | |
53 | ||
54 | void sharp_nh_tracker_dump(struct vty *vty) | |
55 | { | |
56 | struct listnode *node; | |
57 | struct sharp_nh_tracker *nht; | |
58 | ||
59 | for (ALL_LIST_ELEMENTS_RO(sg.nhs, node, nht)) { | |
60 | char buf[PREFIX_STRLEN]; | |
61 | ||
62 | vty_out(vty, "%s: Nexthops: %u Updates: %u\n", | |
63 | prefix2str(&nht->p, buf, sizeof(buf)), | |
64 | nht->nhop_num, | |
65 | nht->updates); | |
66 | } | |
67 | } |