80 lines
2.6 KiB
C
80 lines
2.6 KiB
C
/* $NetBSD: notifications.c,v 1.3 2013/07/11 05:45:23 kefren Exp $ */
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/*-
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* Copyright (c) 2010 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Mihai Chelaru <kefren@NetBSD.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <arpa/inet.h>
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#include <stdlib.h>
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#include "ldp.h"
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#include "socketops.h"
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#include "tlv.h"
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#include "ldp_errors.h"
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#include "notifications.h"
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/* builds a notification TLV. Do not forget to free the result */
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struct notification_tlv *
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build_notification(uint32_t msg, uint32_t n)
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{
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struct notification_tlv *t;
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t = malloc(sizeof(*t));
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if (!t) {
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fatalp("build_notification: malloc problem\n");
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return NULL;
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}
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t->type = htons(LDP_NOTIFICATION);
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t->length = htons(sizeof(struct notification_tlv) - TLV_TYPE_LENGTH);
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t->status = htons(TLV_STATUS);
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t->st_len = sizeof(struct notification_tlv) - 2 * TLV_TYPE_LENGTH;
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t->st_code = htonl(n);
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t->msg_id = htonl(msg);
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t->msg_type = 0;
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return t;
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}
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int
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send_notification(const struct ldp_peer * p, uint32_t msg, uint32_t code)
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{
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struct notification_tlv *nt;
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int rv;
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if (p->state != LDP_PEER_CONNECTED && p->state != LDP_PEER_ESTABLISHED)
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return -1;
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nt = build_notification(msg, code);
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rv = send_tlv(p, (struct tlv *) nt);
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free(nt);
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return rv;
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}
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