/* $NetBSD: ipcomp.h,v 1.1 2003/08/13 20:06:50 jonathan Exp $ */ /* $FreeBSD: src/sys/netipsec/ipcomp.h,v 1.1.4.1 2003/01/24 05:11:35 sam Exp $ */ /* $KAME: ipcomp.h,v 1.8 2000/09/26 07:55:14 itojun Exp $ */ /* * Copyright (C) 1999 WIDE Project. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the project nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ /* * RFC2393 IP payload compression protocol (IPComp). */ #ifndef _NETIPSEC_IPCOMP_H_ #define _NETIPSEC_IPCOMP_H_ struct ipcomp { u_int8_t comp_nxt; /* Next Header */ u_int8_t comp_flags; /* reserved, must be zero */ u_int16_t comp_cpi; /* Compression parameter index */ }; #define IPCOMP_HLENGTH 4 /* Length of IPCOMP header */ /* well-known algorithm number (in CPI), from RFC2409 */ #define IPCOMP_OUI 1 /* vendor specific */ #define IPCOMP_DEFLATE 2 /* RFC2394 */ #define IPCOMP_LZS 3 /* RFC2395 */ #define IPCOMP_MAX 4 #define IPCOMP_CPI_NEGOTIATE_MIN 256 #endif /*_NETIPSEC_IPCOMP_H_*/