70 lines
2.7 KiB
C
70 lines
2.7 KiB
C
/* $NetBSD: if_etherip.h,v 1.11 2012/07/28 00:43:24 matt Exp $ */
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/*
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* Copyright (c) 2006, Hans Rosenfeld <rosenfeld@grumpf.hope-2000.org>
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* All rights reserved.
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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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* 3. Neither the name of Hans Rosenfeld nor the names of his
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _NET_IF_ETHERIP_H_
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#define _NET_IF_ETHERIP_H_
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#include <sys/queue.h>
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#ifdef _KERNEL_OPT
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#include "opt_inet.h"
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#endif
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#include <netinet/in.h>
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struct etherip_softc {
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struct ifmedia sc_im;
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device_t sc_dev;
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struct ethercom sc_ec;
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struct sockaddr *sc_src; /* tunnel source address */
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struct sockaddr *sc_dst; /* tunnel destination address */
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struct route sc_ro; /* cached inet route */
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void *sc_si; /* softintr handle */
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LIST_ENTRY(etherip_softc) etherip_list; /* list of etherip tunnels */
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};
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LIST_HEAD(etherip_softc_list, etherip_softc);
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extern struct etherip_softc_list etherip_softc_list;
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struct etherip_header {
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uint8_t eip_ver; /* version/reserved */
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uint8_t eip_pad; /* required padding byte */
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};
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#define ETHERIP_VER_VERS_MASK 0x0f
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#define ETHERIP_VER_RSVD_MASK 0xf0
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#define ETHERIP_VERSION 0x03
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#define ETHERIP_TTL 30
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#define ETHERIP_ROUTE_TTL 10
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#endif /* !_NET_IF_ETHERIP_H_ */
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