75 lines
2.4 KiB
C
75 lines
2.4 KiB
C
/* $NetBSD: mpls.h,v 1.1 2010/06/26 14:24:28 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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#ifndef _NETMPLS_MPLS_H_
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#define _NETMPLS_MPLS_H_
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/proc.h>
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#include <sys/queue.h>
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#include <net/if.h>
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#include <net/if_dl.h>
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#define MPLS_LABEL_IPV4NULL 0 /* IPv4 Explicit NULL Label */
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#define MPLS_LABEL_RTALERT 1 /* Router Alert Label */
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#define MPLS_LABEL_IPV6NULL 2 /* IPv6 Explicit NULL Label */
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#define MPLS_LABEL_IMPLNULL 3 /* Implicit NULL Label */
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#define MPLS_LABEL_RESMAX 15 /* Maximum reserved Label */
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union mpls_shim {
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uint32_t s_addr; /* the whole shim */
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struct {
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#if BYTE_ORDER == LITTLE_ENDIAN
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uint32_t ttl:8;
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uint32_t bos:1;
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uint32_t exp:3;
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uint32_t label:20;
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#else
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uint32_t label:20;
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uint32_t exp:3;
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uint32_t bos:1;
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uint32_t ttl:8;
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#endif
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} shim;
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};
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struct sockaddr_mpls {
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uint8_t smpls_len;
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uint8_t smpls_family;
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uint8_t smpls_pad[2];
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union mpls_shim smpls_addr;
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} __packed;
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#endif /* !_NETMPLS_MPLS_H_ */
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