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/* $OpenBSD: ip_ip4.h,v 1.4 1997/02/26 03:01:05 angelos Exp $ */
/*
* The author of this code is John Ioannidis, ji@tla.org,
* (except when noted otherwise).
*
* This code was written for BSD/OS in Athens, Greece, in November 1995.
*
* Ported to OpenBSD and NetBSD, with additional transforms, in December 1996,
* by Angelos D. Keromytis, kermit@forthnet.gr.
*
* Copyright (C) 1995, 1996, 1997 by John Ioannidis and Angelos D. Keromytis.
*
* Permission to use, copy, and modify this software 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.
*
* THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTY. IN PARTICULAR, NEITHER AUTHOR MAKES ANY
* REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
* MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
* PURPOSE.
*/
/*
* IP-inside-IP processing.
* Not quite all the functionality of RFC-1853, but the main idea is there.
*/
struct ip4_xdata
{
int32_t ip4_ttl;
};
struct ip4_xencap
{
int32_t ip4_ttl;
};
struct ip4stat
{
u_long ip4s_ipackets; /* total input packets */
u_long ip4s_opackets; /* total output packets */
u_long ip4s_hdrops; /* packet shorter than header shows */
u_long ip4s_badlen;
u_long ip4s_notip4;
u_long ip4s_qfull;
};
#define IP4_SAME_TTL 0
#define IP4_DEFAULT_TTL -1
#ifdef _KERNEL
struct ip4stat ip4stat;
#endif
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