1 | /* $NetBSD: ip_ecn.h,v 1.12 2008/11/12 12:36:28 ad Exp $ */ |
2 | /* $KAME: ip_ecn.h,v 1.6 2001/05/03 14:51:48 itojun 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 | * ECN consideration on tunnel ingress/egress operation. |
35 | * http://www.aciri.org/floyd/papers/draft-ipsec-ecn-00.txt |
36 | */ |
37 | |
38 | #ifndef _NETINET_IP_ECN_H_ |
39 | #define _NETINET_IP_ECN_H_ |
40 | |
41 | #if (defined(__FreeBSD__) && __FreeBSD__ >= 3) || defined(__NetBSD__) |
42 | #if defined(_KERNEL_OPT) |
43 | #include "opt_inet.h" |
44 | #endif |
45 | #endif |
46 | |
47 | #define ECN_ALLOWED 1 /* ECN allowed */ |
48 | #define ECN_FORBIDDEN 0 /* ECN forbidden */ |
49 | #define ECN_NOCARE (-1) /* no consideration to ECN */ |
50 | |
51 | #if defined(KERNEL) || defined(_KERNEL) |
52 | extern void ip_ecn_ingress (int, u_int8_t *, const u_int8_t *); |
53 | extern void ip_ecn_egress (int, const u_int8_t *, u_int8_t *); |
54 | #ifdef INET6 |
55 | extern void ip6_ecn_ingress (int, u_int32_t *, const u_int32_t *); |
56 | extern void ip6_ecn_egress (int, const u_int32_t *, u_int32_t *); |
57 | #endif |
58 | #endif |
59 | #endif /* !_NETINET_IP_ECN_H_ */ |
60 | |