/* @(#) $Header: /tcpdump/master/tcpdump/enc.h,v 1.1 2003-03-08 08:55:33 guy Exp $ (LBL) *//* From $OpenBSD: if_enc.h,v 1.8 2001/06/25 05:14:00 angelos 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. * 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. */#define ENC_HDRLEN	12/* From $OpenBSD: mbuf.h,v 1.56 2002/01/25 15:50:23 art Exp $	*/#define M_CONF		0x0400  /* packet was encrypted (ESP-transport) */#define M_AUTH		0x0800  /* packet was authenticated (AH) */struct enchdr {	u_int32_t af;	u_int32_t spi;	u_int32_t flags;};