/* $NetBSD: ipip_var.h,v 1.6 2018/04/22 10:25:40 maxv Exp $ */
/* $FreeBSD: ipip_var.h,v 1.1.4.1 2003/01/24 05:11:35 sam Exp $ */
/* $OpenBSD: ip_ipip.h,v 1.5 2002/06/09 16:26:10 itojun Exp $ */
/*
* The authors of this code are John Ioannidis (
[email protected]),
* Angelos D. Keromytis (
[email protected]) and
* Niels Provos (
[email protected]).
*
* The original version of this code was written by John Ioannidis
* for BSD/OS in Athens, Greece, in November 1995.
*
* Ported to OpenBSD and NetBSD, with additional transforms, in December 1996,
* by Angelos D. Keromytis.
*
* Additional transforms and features in 1997 and 1998 by Angelos D. Keromytis
* and Niels Provos.
*
* Additional features in 1999 by Angelos D. Keromytis.
*
* Copyright (C) 1995, 1996, 1997, 1998, 1999 by John Ioannidis,
* Angelos D. Keromytis and Niels Provos.
* Copyright (c) 2001, Angelos D. Keromytis.
*
* Permission to use, copy, and modify this software with or without fee
* is hereby granted, provided that this entire notice is included in
* all copies of any software which is or includes a copy or
* modification of this software.
* You may use this code under the GNU public license if you so wish. Please
* contribute changes back to the authors under this freer than GPL license
* so that we may further the use of strong encryption without limitations to
* all.
*
* THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
* REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
* MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
* PURPOSE.
*/
#ifndef _NETINET_IPIP_H_
#define _NETINET_IPIP_H_
/*
* IP-inside-IP processing.
* Not quite all the functionality of RFC-1853, but the main idea is there.
*/
#define IPIP_STAT_IPACKETS 0 /* total input packets */
#define IPIP_STAT_OPACKETS 1 /* total output packets */
#define IPIP_STAT_HDROPS 2 /* packet shorter than header shows */
#define IPIP_STAT_QFULL 3
#define IPIP_STAT_IBYTES 4
#define IPIP_STAT_OBYTES 5
#define IPIP_STAT_PDROPS 6 /* packet dropped due to policy */
#define IPIP_STAT_SPOOF 7 /* IP spoofing attempts */
#define IPIP_STAT_FAMILY 8 /* protocol family mismatch */
#define IPIP_STAT_UNSPEC 9 /* missing tunnel endpoint address */
#define IPIP_NSTATS 10
#ifdef _KERNEL
extern int ipip_spoofcheck;
#endif /* _KERNEL */
#endif /* !_NETINET_IPIP_H_ */
