1686cdd19SJun-ichiro itojun Hagino /* $FreeBSD$ */ 233841545SHajimu UMEMOTO /* $KAME: ip_ecn.h,v 1.6 2001/05/03 14:51:48 itojun Exp $ */ 3686cdd19SJun-ichiro itojun Hagino 46a800098SYoshinobu Inoue /* 56a800098SYoshinobu Inoue * Copyright (C) 1999 WIDE Project. 66a800098SYoshinobu Inoue * All rights reserved. 76a800098SYoshinobu Inoue * 86a800098SYoshinobu Inoue * Redistribution and use in source and binary forms, with or without 96a800098SYoshinobu Inoue * modification, are permitted provided that the following conditions 106a800098SYoshinobu Inoue * are met: 116a800098SYoshinobu Inoue * 1. Redistributions of source code must retain the above copyright 126a800098SYoshinobu Inoue * notice, this list of conditions and the following disclaimer. 136a800098SYoshinobu Inoue * 2. Redistributions in binary form must reproduce the above copyright 146a800098SYoshinobu Inoue * notice, this list of conditions and the following disclaimer in the 156a800098SYoshinobu Inoue * documentation and/or other materials provided with the distribution. 166a800098SYoshinobu Inoue * 3. Neither the name of the project nor the names of its contributors 176a800098SYoshinobu Inoue * may be used to endorse or promote products derived from this software 186a800098SYoshinobu Inoue * without specific prior written permission. 196a800098SYoshinobu Inoue * 206a800098SYoshinobu Inoue * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 216a800098SYoshinobu Inoue * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 226a800098SYoshinobu Inoue * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 236a800098SYoshinobu Inoue * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 246a800098SYoshinobu Inoue * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 256a800098SYoshinobu Inoue * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 266a800098SYoshinobu Inoue * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 276a800098SYoshinobu Inoue * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 286a800098SYoshinobu Inoue * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 296a800098SYoshinobu Inoue * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 306a800098SYoshinobu Inoue * SUCH DAMAGE. 316a800098SYoshinobu Inoue * 326a800098SYoshinobu Inoue */ 336a800098SYoshinobu Inoue /* 346a800098SYoshinobu Inoue * ECN consideration on tunnel ingress/egress operation. 356a800098SYoshinobu Inoue * http://www.aciri.org/floyd/papers/draft-ipsec-ecn-00.txt 366a800098SYoshinobu Inoue */ 376a800098SYoshinobu Inoue 3833841545SHajimu UMEMOTO #if defined(_KERNEL) && !defined(_LKM) 3933841545SHajimu UMEMOTO #include "opt_inet.h" 4033841545SHajimu UMEMOTO #endif 4133841545SHajimu UMEMOTO 426a800098SYoshinobu Inoue #define ECN_ALLOWED 1 /* ECN allowed */ 436a800098SYoshinobu Inoue #define ECN_FORBIDDEN 0 /* ECN forbidden */ 446a800098SYoshinobu Inoue #define ECN_NOCARE (-1) /* no consideration to ECN */ 456a800098SYoshinobu Inoue 46664a31e4SPeter Wemm #ifdef _KERNEL 474d77a549SAlfred Perlstein extern void ip_ecn_ingress(int, u_int8_t *, const u_int8_t *); 484d77a549SAlfred Perlstein extern void ip_ecn_egress(int, const u_int8_t *, u_int8_t *); 496a800098SYoshinobu Inoue #endif 50