188768458SSam Leffler /* $FreeBSD$ */ 288768458SSam Leffler /* $KAME: ipcomp.h,v 1.8 2000/09/26 07:55:14 itojun Exp $ */ 388768458SSam Leffler 488768458SSam Leffler /* 588768458SSam Leffler * Copyright (C) 1999 WIDE Project. 688768458SSam Leffler * All rights reserved. 788768458SSam Leffler * 888768458SSam Leffler * Redistribution and use in source and binary forms, with or without 988768458SSam Leffler * modification, are permitted provided that the following conditions 1088768458SSam Leffler * are met: 1188768458SSam Leffler * 1. Redistributions of source code must retain the above copyright 1288768458SSam Leffler * notice, this list of conditions and the following disclaimer. 1388768458SSam Leffler * 2. Redistributions in binary form must reproduce the above copyright 1488768458SSam Leffler * notice, this list of conditions and the following disclaimer in the 1588768458SSam Leffler * documentation and/or other materials provided with the distribution. 1688768458SSam Leffler * 3. Neither the name of the project nor the names of its contributors 1788768458SSam Leffler * may be used to endorse or promote products derived from this software 1888768458SSam Leffler * without specific prior written permission. 1988768458SSam Leffler * 2088768458SSam Leffler * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 2188768458SSam Leffler * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2288768458SSam Leffler * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2388768458SSam Leffler * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 2488768458SSam Leffler * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2588768458SSam Leffler * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2688768458SSam Leffler * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2788768458SSam Leffler * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2888768458SSam Leffler * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2988768458SSam Leffler * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3088768458SSam Leffler * SUCH DAMAGE. 3188768458SSam Leffler */ 3288768458SSam Leffler 3388768458SSam Leffler /* 3488768458SSam Leffler * RFC2393 IP payload compression protocol (IPComp). 3588768458SSam Leffler */ 3688768458SSam Leffler 3788768458SSam Leffler #ifndef _NETIPSEC_IPCOMP_H_ 3888768458SSam Leffler #define _NETIPSEC_IPCOMP_H_ 3988768458SSam Leffler 4088768458SSam Leffler struct ipcomp { 4188768458SSam Leffler u_int8_t comp_nxt; /* Next Header */ 4288768458SSam Leffler u_int8_t comp_flags; /* reserved, must be zero */ 4388768458SSam Leffler u_int16_t comp_cpi; /* Compression parameter index */ 4488768458SSam Leffler }; 4588768458SSam Leffler 4688768458SSam Leffler #define IPCOMP_HLENGTH 4 /* Length of IPCOMP header */ 4788768458SSam Leffler 4888768458SSam Leffler /* well-known algorithm number (in CPI), from RFC2409 */ 4988768458SSam Leffler #define IPCOMP_OUI 1 /* vendor specific */ 5088768458SSam Leffler #define IPCOMP_DEFLATE 2 /* RFC2394 */ 5188768458SSam Leffler #define IPCOMP_LZS 3 /* RFC2395 */ 5288768458SSam Leffler #define IPCOMP_MAX 4 5388768458SSam Leffler 5488768458SSam Leffler #define IPCOMP_CPI_NEGOTIATE_MIN 256 5588768458SSam Leffler #endif /*_NETIPSEC_IPCOMP_H_*/ 56