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// SPDX-License-Identifier: ISC
/* $OpenBSD$ */
/*
* Copyright (c) 2009 Michele Marchetto <michele@openbsd.org>
*/
#include <zebra.h>
#include "ldpd.h"
#include "ldpe.h"
#include "log.h"
#include "ldp_debug.h"
void
send_keepalive(struct nbr *nbr)
{
struct ibuf *buf;
uint16_t size;
size = LDP_HDR_SIZE + LDP_MSG_SIZE;
if ((buf = ibuf_open(size)) == NULL)
fatal(__func__);
gen_ldp_hdr(buf, size);
size -= LDP_HDR_SIZE;
gen_msg_hdr(buf, MSG_TYPE_KEEPALIVE, size);
debug_kalive_send("keepalive: lsr-id %pI4", &nbr->id);
evbuf_enqueue(&nbr->tcp->wbuf, buf);
nbr->stats.kalive_sent++;
}
int
recv_keepalive(struct nbr *nbr, char *buf, uint16_t len)
{
struct ldp_msg msg;
memcpy(&msg, buf, sizeof(msg));
if (len != LDP_MSG_SIZE) {
session_shutdown(nbr, S_BAD_MSG_LEN, msg.id, msg.type);
return (-1);
}
debug_kalive_recv("keepalive: lsr-id %pI4", &nbr->id);
if (nbr->state != NBR_STA_OPER)
nbr_fsm(nbr, NBR_EVT_KEEPALIVE_RCVD);
return (0);
}
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