LCOM1920-T02G10

/*        $NetBSD: mpls.h,v 1.1 2010/06/26 14:24:28 kefren 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 <kefren@NetBSD.org>

 *

 * 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;

} __packed;

#endif /* !_NETMPLS_MPLS_H_ */