/* $NetBSD: mpls.h,v 1.2 2016/10/08 20:19:37 joerg Exp $ */
/*-
* Copyright (c) 2010 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Mihai Chelaru <
[email protected]>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _NETMPLS_MPLS_H_
#define _NETMPLS_MPLS_H_
#include <sys/param.h>
#include <sys/time.h>
#include <sys/proc.h>
#include <sys/queue.h>
#include <net/if.h>
#include <net/if_dl.h>
#define MPLS_LABEL_IPV4NULL 0 /* IPv4 Explicit NULL Label */
#define MPLS_LABEL_RTALERT 1 /* Router Alert Label */
#define MPLS_LABEL_IPV6NULL 2 /* IPv6 Explicit NULL Label */
#define MPLS_LABEL_IMPLNULL 3 /* Implicit NULL Label */
#define MPLS_LABEL_RESMAX 15 /* Maximum reserved Label */
union mpls_shim {
uint32_t s_addr; /* the whole shim */
struct {
#if BYTE_ORDER == LITTLE_ENDIAN
uint32_t ttl:8;
uint32_t bos:1;
uint32_t exp:3;
uint32_t label:20;
#else
uint32_t label:20;
uint32_t exp:3;
uint32_t bos:1;
uint32_t ttl:8;
#endif
} shim;
};
struct sockaddr_mpls {
uint8_t smpls_len;
uint8_t smpls_family;
uint8_t smpls_pad[2];
union mpls_shim smpls_addr;
};
__CTASSERT(sizeof(struct sockaddr_mpls) == 8);
#endif /* !_NETMPLS_MPLS_H_ */
