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/* $OpenBSD: ip_gre.h,v 1.19 2024/05/13 01:15:53 jsg Exp $ */
/* $NetBSD: ip_gre.h,v 1.3 1998/10/07 23:33:02 thorpej Exp $ */
/*
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Heiko W.Rupp <hwr@pilhuhn.de>
*
* 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 _NETINET_IP_GRE_H_
#define _NETINET_IP_GRE_H_
/* Protocol number for Cisco's WCCP
* The Internet Draft is:
* draft-forster-wrec-wccp-v1-00.txt
*/
#define GREPROTO_WCCP 0x883e
/*
* Names for GRE sysctl objects
*/
#define GRECTL_ALLOW 1 /* accept incoming GRE packets */
#define GRECTL_WCCP 2 /* accept WCCPv1-style GRE packets */
#define GRECTL_MAXID 3
#define GRECTL_NAMES { \
{ 0, 0 }, \
{ "allow", CTLTYPE_INT }, \
{ "wccp", CTLTYPE_INT }, \
}
#ifdef _KERNEL
extern const struct pr_usrreqs gre_usrreqs;
int gre_send(struct socket *, struct mbuf *, struct mbuf *,
struct mbuf *);
#endif /* _KERNEL */
#endif /* _NETINET_IP_GRE_H_ */
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