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Annotation of sys/netinet/ip_ecn.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: ip_ecn.h,v 1.5 2002/05/16 14:10:51 kjc Exp $  */
                      2: /*     $KAME: ip_ecn.h,v 1.5 2000/03/27 04:58:38 sumikawa Exp $        */
                      3:
                      4: /*
                      5:  * Copyright (C) 1999 WIDE Project.
                      6:  * All rights reserved.
                      7:  *
                      8:  * Redistribution and use in source and binary forms, with or without
                      9:  * modification, are permitted provided that the following conditions
                     10:  * are met:
                     11:  * 1. Redistributions of source code must retain the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer.
                     13:  * 2. Redistributions in binary form must reproduce the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer in the
                     15:  *    documentation and/or other materials provided with the distribution.
                     16:  * 3. Neither the name of the project nor the names of its contributors
                     17:  *    may be used to endorse or promote products derived from this software
                     18:  *    without specific prior written permission.
                     19:  *
                     20:  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
                     21:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     22:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     23:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
                     24:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     25:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     26:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     27:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     28:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     29:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     30:  * SUCH DAMAGE.
                     31:  *
                     32:  */
                     33:
                     34: #ifndef _NETINET_IP_ECN_H_
                     35: #define _NETINET_IP_ECN_H_
                     36:
                     37: /*
                     38:  * ECN consideration on tunnel ingress/egress operation.
                     39:  * http://www.aciri.org/floyd/papers/draft-ipsec-ecn-00.txt
                     40:  */
                     41:
                     42: #define ECN_ALLOWED    1       /* ECN allowed */
                     43: #define ECN_FORBIDDEN  0       /* ECN forbidden */
                     44: #define ECN_NOCARE     (-1)    /* no consideration to ECN */
                     45:
                     46: #if defined(_KERNEL)
                     47: extern void ip_ecn_ingress(int, u_int8_t *, u_int8_t *);
                     48: extern int ip_ecn_egress(int, u_int8_t *, u_int8_t *);
                     49: #ifdef INET6
                     50: extern void ip6_ecn_ingress(int, u_int32_t *, u_int32_t *);
                     51: extern int ip6_ecn_egress(int, u_int32_t *, u_int32_t *);
                     52: #endif /* INET6 */
                     53: #endif /* _KERNEL */
                     54: #endif /* _NETINET_IP_ECN_H_ */