From 2c7cac91ed6e7db0f6937923d2b57f97dbdbc337 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 11:53:30 +0200 Subject: Adding upstream version 8.4.4. Signed-off-by: Daniel Baumann --- ldpd/keepalive.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 ldpd/keepalive.c (limited to 'ldpd/keepalive.c') diff --git a/ldpd/keepalive.c b/ldpd/keepalive.c new file mode 100644 index 0000000..b031271 --- /dev/null +++ b/ldpd/keepalive.c @@ -0,0 +1,63 @@ +/* $OpenBSD$ */ + +/* + * Copyright (c) 2009 Michele Marchetto + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include + +#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); +} -- cgit v1.2.3