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1 | // SPDX-License-Identifier: GPL-2.0-or-later | |
2 | /* | |
3 | * Copyright (C) 2018 NetDEF, Inc. | |
4 | * Renato Westphal | |
5 | */ | |
6 | ||
7 | #include <zebra.h> | |
8 | ||
9 | #include "if.h" | |
10 | #include "vrf.h" | |
11 | #include "log.h" | |
12 | #include "prefix.h" | |
13 | #include "table.h" | |
14 | #include "command.h" | |
15 | #include "routemap.h" | |
16 | #include "agg_table.h" | |
17 | #include "northbound.h" | |
18 | #include "libfrr.h" | |
19 | ||
20 | #include "ripngd/ripngd.h" | |
21 | #include "ripngd/ripng_nb.h" | |
22 | #include "ripngd/ripng_debug.h" | |
23 | #include "ripngd/ripng_route.h" | |
24 | ||
25 | /* | |
26 | * XPath: /frr-ripngd:clear-ripng-route | |
27 | */ | |
28 | static void clear_ripng_route(struct ripng *ripng) | |
29 | { | |
30 | struct agg_node *rp; | |
31 | ||
32 | if (IS_RIPNG_DEBUG_EVENT) | |
33 | zlog_debug("Clearing all RIPng routes (VRF %s)", | |
34 | ripng->vrf_name); | |
35 | ||
36 | /* Clear received RIPng routes */ | |
37 | for (rp = agg_route_top(ripng->table); rp; rp = agg_route_next(rp)) { | |
38 | struct list *list; | |
39 | struct listnode *listnode; | |
40 | struct ripng_info *rinfo; | |
41 | ||
42 | list = rp->info; | |
43 | if (list == NULL) | |
44 | continue; | |
45 | ||
46 | for (ALL_LIST_ELEMENTS_RO(list, listnode, rinfo)) { | |
47 | if (!ripng_route_rte(rinfo)) | |
48 | continue; | |
49 | ||
50 | if (CHECK_FLAG(rinfo->flags, RIPNG_RTF_FIB)) | |
51 | ripng_zebra_ipv6_delete(ripng, rp); | |
52 | break; | |
53 | } | |
54 | ||
55 | if (rinfo) { | |
56 | EVENT_OFF(rinfo->t_timeout); | |
57 | EVENT_OFF(rinfo->t_garbage_collect); | |
58 | listnode_delete(list, rinfo); | |
59 | ripng_info_free(rinfo); | |
60 | } | |
61 | ||
62 | if (list_isempty(list)) { | |
63 | list_delete(&list); | |
64 | rp->info = NULL; | |
65 | agg_unlock_node(rp); | |
66 | } | |
67 | } | |
68 | } | |
69 | ||
70 | int clear_ripng_route_rpc(struct nb_cb_rpc_args *args) | |
71 | { | |
72 | struct ripng *ripng; | |
73 | struct yang_data *yang_vrf; | |
74 | ||
75 | yang_vrf = yang_data_list_find(args->input, "%s/%s", args->xpath, | |
76 | "input/vrf"); | |
77 | if (yang_vrf) { | |
78 | ripng = ripng_lookup_by_vrf_name(yang_vrf->value); | |
79 | if (ripng) | |
80 | clear_ripng_route(ripng); | |
81 | } else { | |
82 | struct vrf *vrf; | |
83 | ||
84 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) { | |
85 | ripng = vrf->info; | |
86 | if (!ripng) | |
87 | continue; | |
88 | ||
89 | clear_ripng_route(ripng); | |
90 | } | |
91 | } | |
92 | ||
93 | return NB_OK; | |
94 | } |