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Zebra: Data structures for RMAC processing in FPM
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1/* $OpenBSD$ */
2
3/*
4 * Copyright (c) 2009 Michele Marchetto <michele@openbsd.org>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
eac6e3f0 19#include <zebra.h>
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20
21#include "ldpd.h"
22#include "ldpe.h"
23#include "log.h"
eac6e3f0 24#include "ldp_debug.h"
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25
26void
27send_keepalive(struct nbr *nbr)
28{
29 struct ibuf *buf;
30 uint16_t size;
31
32 size = LDP_HDR_SIZE + LDP_MSG_SIZE;
33 if ((buf = ibuf_open(size)) == NULL)
34 fatal(__func__);
35
36 gen_ldp_hdr(buf, size);
37 size -= LDP_HDR_SIZE;
38 gen_msg_hdr(buf, MSG_TYPE_KEEPALIVE, size);
39
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40 debug_kalive_send("keepalive: lsr-id %s", inet_ntoa(nbr->id));
41
8429abe0 42 evbuf_enqueue(&nbr->tcp->wbuf, buf);
0f7b5df9 43 nbr->stats.kalive_sent++;
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44}
45
46int
47recv_keepalive(struct nbr *nbr, char *buf, uint16_t len)
48{
49 struct ldp_msg msg;
50
51 memcpy(&msg, buf, sizeof(msg));
52 if (len != LDP_MSG_SIZE) {
53 session_shutdown(nbr, S_BAD_MSG_LEN, msg.id, msg.type);
54 return (-1);
55 }
56
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57 debug_kalive_recv("keepalive: lsr-id %s", inet_ntoa(nbr->id));
58
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59 if (nbr->state != NBR_STA_OPER)
60 nbr_fsm(nbr, NBR_EVT_KEEPALIVE_RCVD);
61
62 return (0);
63}