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1 | /** |
2 | * @copyright Copyright (C) 2015 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 | |
c43ed2e4 DS |
19 | */ |
20 | ||
21 | #include <zebra.h> | |
22 | #include "prefix.h" | |
23 | #include "vty.h" | |
24 | #include "stream.h" | |
161e9ab7 | 25 | #include "zebra/zebra_router.h" |
bf094f69 | 26 | #include "zebra/zapi_msg.h" |
4943f243 | 27 | #include "zebra/zebra_ptm.h" |
88177fe3 | 28 | #include "zebra/zebra_ptm_redistribute.h" |
4a1ab8e4 | 29 | #include "zebra/zebra_memory.h" |
c43ed2e4 | 30 | |
d62a17ae | 31 | static int zsend_interface_bfd_update(int cmd, struct zserv *client, |
32 | struct interface *ifp, struct prefix *dp, | |
33 | struct prefix *sp, int status, | |
34 | vrf_id_t vrf_id) | |
c43ed2e4 | 35 | { |
d62a17ae | 36 | int blen; |
37 | struct stream *s; | |
38 | ||
1002497a | 39 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); |
d62a17ae | 40 | |
7cf15b25 | 41 | zclient_create_header(s, cmd, vrf_id); |
d62a17ae | 42 | if (ifp) |
43 | stream_putl(s, ifp->ifindex); | |
44 | else | |
45 | stream_putl(s, 0); | |
46 | ||
47 | /* BFD destination prefix information. */ | |
48 | stream_putc(s, dp->family); | |
49 | blen = prefix_blen(dp); | |
50 | stream_put(s, &dp->u.prefix, blen); | |
51 | stream_putc(s, dp->prefixlen); | |
52 | ||
53 | /* BFD status */ | |
54 | stream_putl(s, status); | |
55 | ||
56 | /* BFD source prefix information. */ | |
57 | stream_putc(s, sp->family); | |
58 | blen = prefix_blen(sp); | |
59 | stream_put(s, &sp->u.prefix, blen); | |
60 | stream_putc(s, sp->prefixlen); | |
61 | ||
62 | /* Write packet size. */ | |
63 | stream_putw_at(s, 0, stream_get_endp(s)); | |
64 | ||
65 | client->if_bfd_cnt++; | |
21ccc0cf | 66 | return zserv_send_message(client, s); |
c43ed2e4 DS |
67 | } |
68 | ||
d62a17ae | 69 | void zebra_interface_bfd_update(struct interface *ifp, struct prefix *dp, |
70 | struct prefix *sp, int status, vrf_id_t vrf_id) | |
c43ed2e4 | 71 | { |
d62a17ae | 72 | struct listnode *node, *nnode; |
73 | struct zserv *client; | |
74 | ||
161e9ab7 | 75 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
4943f243 | 76 | if (!IS_BFD_ENABLED_PROTOCOL(client->proto)) |
d62a17ae | 77 | continue; |
78 | ||
79 | /* Notify to the protocol daemons. */ | |
80 | zsend_interface_bfd_update(ZEBRA_INTERFACE_BFD_DEST_UPDATE, | |
81 | client, ifp, dp, sp, status, vrf_id); | |
82 | } | |
c43ed2e4 DS |
83 | } |
84 | ||
d62a17ae | 85 | static int zsend_bfd_peer_replay(int cmd, struct zserv *client) |
c43ed2e4 | 86 | { |
d62a17ae | 87 | struct stream *s; |
c43ed2e4 | 88 | |
1002497a | 89 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); |
c43ed2e4 | 90 | |
7cf15b25 | 91 | zclient_create_header(s, cmd, VRF_DEFAULT); |
c43ed2e4 | 92 | |
d62a17ae | 93 | /* Write packet size. */ |
94 | stream_putw_at(s, 0, stream_get_endp(s)); | |
c43ed2e4 | 95 | |
d62a17ae | 96 | client->bfd_peer_replay_cnt++; |
21ccc0cf | 97 | return zserv_send_message(client, s); |
c43ed2e4 DS |
98 | } |
99 | ||
d62a17ae | 100 | void zebra_bfd_peer_replay_req(void) |
c43ed2e4 | 101 | { |
d62a17ae | 102 | struct listnode *node, *nnode; |
103 | struct zserv *client; | |
104 | ||
161e9ab7 | 105 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
4943f243 | 106 | if (!IS_BFD_ENABLED_PROTOCOL(client->proto)) |
d62a17ae | 107 | continue; |
108 | ||
109 | /* Notify to the protocol daemons. */ | |
110 | zsend_bfd_peer_replay(ZEBRA_BFD_DEST_REPLAY, client); | |
111 | } | |
c43ed2e4 | 112 | } |