/* $OpenBSD: ip_ip4.h,v 1.10 1998/05/18 21:10:55 provos Exp $ */ /* * The authors of this code are John Ioannidis (ji@tla.org), * Angelos D. Keromytis (kermit@csd.uch.gr) and * Niels Provos (provos@physnet.uni-hamburg.de). * * 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. * * Copyright (C) 1995, 1996, 1997, 1998 by John Ioannidis, Angelos D. Keromytis * and Niels Provos. * * 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. * 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. */ /* * IP-inside-IP processing. * Not quite all the functionality of RFC-1853, but the main idea is there. */ struct ip4stat { u_int32_t ip4s_ipackets; /* total input packets */ u_int32_t ip4s_opackets; /* total output packets */ u_int32_t ip4s_hdrops; /* packet shorter than header shows */ u_int32_t ip4s_badlen; u_int32_t ip4s_notip4; u_int32_t ip4s_qfull; u_int64_t ip4s_ibytes; u_int64_t ip4s_obytes; }; #define IP4_DEFAULT_TTL 0 #define IP4_SAME_TTL -1 #ifdef _KERNEL struct ip4stat ip4stat; #endif