/* $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