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File: [cvs.NetBSD.org] / src / sys / netinet / ip_ecn.h (download)

Revision 1.11, Sat Dec 10 23:36:23 2005 UTC (18 years, 4 months ago) by elad
Branch: MAIN
CVS Tags: yamt-x86pmap-base4, yamt-x86pmap-base3, yamt-x86pmap-base2, yamt-x86pmap-base, yamt-x86pmap, yamt-uio_vmspace-base5, yamt-uio_vmspace, yamt-splraiseipl-base5, yamt-splraiseipl-base4, yamt-splraiseipl-base3, yamt-splraiseipl-base2, yamt-splraiseipl-base, yamt-splraiseipl, yamt-pf42-baseX, yamt-pf42-base4, yamt-pf42-base3, yamt-pf42-base2, yamt-pf42-base, yamt-pf42, yamt-pdpolicy-base9, yamt-pdpolicy-base8, yamt-pdpolicy-base7, yamt-pdpolicy-base6, yamt-pdpolicy-base5, yamt-pdpolicy-base4, yamt-pdpolicy-base3, yamt-pdpolicy-base2, yamt-pdpolicy-base, yamt-pdpolicy, yamt-nfs-mp-base2, yamt-nfs-mp-base, yamt-lazymbuf-base15, yamt-lazymbuf-base14, yamt-kmem-base3, yamt-kmem-base2, yamt-kmem-base, yamt-kmem, yamt-idlelwp-base8, yamt-idlelwp, wrstuden-revivesa-base-4, wrstuden-revivesa-base-3, wrstuden-revivesa-base-2, wrstuden-revivesa-base-1, wrstuden-revivesa-base, wrstuden-revivesa, wrstuden-fixsa-newbase, wrstuden-fixsa-base-1, wrstuden-fixsa-base, wrstuden-fixsa, vmlocking2-base3, vmlocking2-base2, vmlocking2-base1, vmlocking2, vmlocking-nbase, vmlocking-base, vmlocking, thorpej-atomic-base, thorpej-atomic, simonb-wapbl-nbase, simonb-wapbl-base, simonb-wapbl, simonb-timecounters-base, simonb-timecounters, simonb-timcounters-final, rpaulo-netinet-merge-pcb-base, rpaulo-netinet-merge-pcb, reinoud-bufcleanup-nbase, reinoud-bufcleanup-base, reinoud-bufcleanup, post-newlock2-merge, peter-altq-base, peter-altq, nick-net80211-sync-base, nick-net80211-sync, nick-csl-alignment-base5, nick-csl-alignment-base, nick-csl-alignment, newlock2-nbase, newlock2-base, newlock2, netbsd-5-base, netbsd-5-2-RELEASE, netbsd-5-2-RC1, netbsd-5-2-3-RELEASE, netbsd-5-2-2-RELEASE, netbsd-5-2-1-RELEASE, netbsd-5-2, netbsd-5-1-RELEASE, netbsd-5-1-RC4, netbsd-5-1-RC3, netbsd-5-1-RC2, netbsd-5-1-RC1, netbsd-5-1-5-RELEASE, netbsd-5-1-4-RELEASE, netbsd-5-1-3-RELEASE, netbsd-5-1-2-RELEASE, netbsd-5-1-1-RELEASE, netbsd-5-1, netbsd-5-0-RELEASE, netbsd-5-0-RC4, netbsd-5-0-RC3, netbsd-5-0-RC2, netbsd-5-0-RC1, netbsd-5-0-2-RELEASE, netbsd-5-0-1-RELEASE, netbsd-5-0, netbsd-5, netbsd-4-base, netbsd-4-0-RELEASE, netbsd-4-0-RC5, netbsd-4-0-RC4, netbsd-4-0-RC3, netbsd-4-0-RC2, netbsd-4-0-RC1, netbsd-4-0-1-RELEASE, netbsd-4-0, netbsd-4, mjf-ufs-trans-base, mjf-ufs-trans, mjf-devfs-base, mjf-devfs, matt-nb5-pq3-base, matt-nb5-pq3, matt-nb5-mips64-u2-k2-k4-k7-k8-k9, matt-nb5-mips64-u1-k1-k5, matt-nb5-mips64-premerge-20101231, matt-nb5-mips64-premerge-20091211, matt-nb5-mips64-k15, matt-nb5-mips64, matt-nb4-mips64-k7-u2a-k9b, matt-nb4-arm-base, matt-nb4-arm, matt-mips64-base2, matt-mips64-base, matt-mips64, matt-armv6-prevmlocking, matt-armv6-nbase, matt-armv6-base, matt-armv6, ktrace-lwp-base, keiichi-mipv6-nbase, keiichi-mipv6-base, keiichi-mipv6, jmcneill-pm-base, jmcneill-pm, jmcneill-base, hpcarm-cleanup-nbase, hpcarm-cleanup-base, hpcarm-cleanup, haad-dm-base1, gdamore-uart-base, gdamore-uart, elad-kernelauth-base, elad-kernelauth, cube-autoconf-base, cube-autoconf, chap-midi-nbase, chap-midi-base, chap-midi, bouyer-xeni386-nbase, bouyer-xeni386-merge1, bouyer-xeni386-base, bouyer-xeni386, bouyer-xenamd64-base2, bouyer-xenamd64-base, bouyer-xenamd64, ad-socklock-base1, ad-audiomp-base, ad-audiomp, abandoned-netbsd-4-base, abandoned-netbsd-4
Branch point for: yamt-nfs-mp, nick-hppapmap, mjf-devfs2, haad-dm
Changes since 1.10: +2 -2 lines 

Multiple inclusion protection, as suggested by christos@ on tech-kern@
few days ago.

/*	$NetBSD: ip_ecn.h,v 1.11 2005/12/10 23:36:23 elad Exp $	*/
/*	$KAME: ip_ecn.h,v 1.6 2001/05/03 14:51:48 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.
 *
 */
/*
 * 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(__FreeBSD__) && __FreeBSD__ >= 3) || defined(__NetBSD__)
#if defined(_KERNEL) && !defined(_LKM)
#include "opt_inet.h"
#endif
#endif

#define ECN_ALLOWED	1	/* ECN allowed */
#define ECN_FORBIDDEN	0	/* ECN forbidden */
#define ECN_NOCARE	(-1)	/* no consideration to ECN */

#if defined(KERNEL) || defined(_KERNEL)
extern void ip_ecn_ingress (int, u_int8_t *, const u_int8_t *);
extern void ip_ecn_egress (int, const u_int8_t *, u_int8_t *);
#ifdef INET6
extern void ip6_ecn_ingress (int, u_int32_t *, const u_int32_t *);
extern void ip6_ecn_egress (int, const u_int32_t *, u_int32_t *);
#endif
#endif
#endif /* !_NETINET_IP_ECN_H_ */