xref: /xnu-11215.61.5/bsd/netinet6/ipcomp.h (revision 4f1223e81cd707a65cc109d0b8ad6653699da3c4)
1*4f1223e8SApple OSS Distributions /*	$FreeBSD: src/sys/netinet6/ipcomp.h,v 1.1.2.2 2001/07/03 11:01:54 ume Exp $	*/
2*4f1223e8SApple OSS Distributions /*	$KAME: ipcomp.h,v 1.8 2000/09/26 07:55:14 itojun Exp $	*/
3*4f1223e8SApple OSS Distributions 
4*4f1223e8SApple OSS Distributions /*
5*4f1223e8SApple OSS Distributions  * Copyright (C) 1999 WIDE Project.
6*4f1223e8SApple OSS Distributions  * All rights reserved.
7*4f1223e8SApple OSS Distributions  *
8*4f1223e8SApple OSS Distributions  * Redistribution and use in source and binary forms, with or without
9*4f1223e8SApple OSS Distributions  * modification, are permitted provided that the following conditions
10*4f1223e8SApple OSS Distributions  * are met:
11*4f1223e8SApple OSS Distributions  * 1. Redistributions of source code must retain the above copyright
12*4f1223e8SApple OSS Distributions  *    notice, this list of conditions and the following disclaimer.
13*4f1223e8SApple OSS Distributions  * 2. Redistributions in binary form must reproduce the above copyright
14*4f1223e8SApple OSS Distributions  *    notice, this list of conditions and the following disclaimer in the
15*4f1223e8SApple OSS Distributions  *    documentation and/or other materials provided with the distribution.
16*4f1223e8SApple OSS Distributions  * 3. Neither the name of the project nor the names of its contributors
17*4f1223e8SApple OSS Distributions  *    may be used to endorse or promote products derived from this software
18*4f1223e8SApple OSS Distributions  *    without specific prior written permission.
19*4f1223e8SApple OSS Distributions  *
20*4f1223e8SApple OSS Distributions  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
21*4f1223e8SApple OSS Distributions  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22*4f1223e8SApple OSS Distributions  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23*4f1223e8SApple OSS Distributions  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
24*4f1223e8SApple OSS Distributions  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25*4f1223e8SApple OSS Distributions  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26*4f1223e8SApple OSS Distributions  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27*4f1223e8SApple OSS Distributions  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28*4f1223e8SApple OSS Distributions  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29*4f1223e8SApple OSS Distributions  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30*4f1223e8SApple OSS Distributions  * SUCH DAMAGE.
31*4f1223e8SApple OSS Distributions  */
32*4f1223e8SApple OSS Distributions 
33*4f1223e8SApple OSS Distributions /*
34*4f1223e8SApple OSS Distributions  * RFC2393 IP payload compression protocol (IPComp).
35*4f1223e8SApple OSS Distributions  */
36*4f1223e8SApple OSS Distributions 
37*4f1223e8SApple OSS Distributions #ifndef _NETINET6_IPCOMP_H_
38*4f1223e8SApple OSS Distributions #define _NETINET6_IPCOMP_H_
39*4f1223e8SApple OSS Distributions #include <sys/appleapiopts.h>
40*4f1223e8SApple OSS Distributions #include <netinet6/ipsec.h>
41*4f1223e8SApple OSS Distributions 
42*4f1223e8SApple OSS Distributions struct ipcomp {
43*4f1223e8SApple OSS Distributions 	u_int8_t comp_nxt;      /* Next Header */
44*4f1223e8SApple OSS Distributions 	u_int8_t comp_flags;    /* reserved, must be zero */
45*4f1223e8SApple OSS Distributions 	u_int16_t comp_cpi;     /* Compression parameter index */
46*4f1223e8SApple OSS Distributions };
47*4f1223e8SApple OSS Distributions 
48*4f1223e8SApple OSS Distributions /* well-known algorithm number (in CPI), from RFC2409 */
49*4f1223e8SApple OSS Distributions #define IPCOMP_OUI      1       /* vendor specific */
50*4f1223e8SApple OSS Distributions #define IPCOMP_DEFLATE  2       /* RFC2394 */
51*4f1223e8SApple OSS Distributions #define IPCOMP_LZS      3       /* RFC2395 */
52*4f1223e8SApple OSS Distributions #define IPCOMP_MAX      4
53*4f1223e8SApple OSS Distributions 
54*4f1223e8SApple OSS Distributions #define IPCOMP_CPI_NEGOTIATE_MIN        256
55*4f1223e8SApple OSS Distributions 
56*4f1223e8SApple OSS Distributions #endif /* _NETINET6_IPCOMP_H_ */
57