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/* $FreeBSD: release/9.1.0/sys/netinet/ip_ecn.h 139823 2005-01-07 01:45:51Z imp $ */ /* $KAME: ip_ecn.h,v 1.8 2002/01/07 11:34:47 kjc 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. * */ /* * ECN consideration on tunnel ingress/egress operation. * http://www.aciri.org/floyd/papers/draft-ipsec-ecn-00.txt */ #ifndef _NETINET_IP_ECN_H_ #define _NETINET_IP_ECN_H_ #if defined(_KERNEL) && !defined(_LKM) #include "opt_inet.h" #endif #define ECN_ALLOWED 1 /* ECN allowed */ #define ECN_FORBIDDEN 0 /* ECN forbidden */ #define ECN_NOCARE (-1) /* no consideration to ECN */ #ifdef _KERNEL extern void ip_ecn_ingress(int, u_int8_t *, const u_int8_t *); extern int ip_ecn_egress(int, const u_int8_t *, u_int8_t *); #endif #endif