0,0 → 1,75 |
/*!\file netinet6/ipcomp.h |
* |
*/ |
|
/* $FreeBSD: src/sys/netinet6/ipcomp.h,v 1.4 2002/04/19 04:46:23 suz Exp $ */ |
/* $KAME: ipcomp.h,v 1.11 2001/09/04 08:43:19 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. |
*/ |
|
/* |
* RFC2393 IP payload compression protocol (IPComp). |
*/ |
|
#ifndef _NETINET6_IPCOMP_H_ |
#define _NETINET6_IPCOMP_H_ |
|
#if defined(_KERNEL) && !defined(_LKM) |
#include "opt_inet.h" |
#endif |
|
struct ipcomp { |
u_int8_t comp_nxt; /* Next Header */ |
u_int8_t comp_flags; /* reserved, must be zero */ |
u_int16_t comp_cpi; /* Compression parameter index */ |
}; |
|
/* well-known algorithm number (in CPI), from RFC2409 */ |
#define IPCOMP_OUI 1 /* vendor specific */ |
#define IPCOMP_DEFLATE 2 /* RFC2394 */ |
#define IPCOMP_LZS 3 /* RFC2395 */ |
#define IPCOMP_MAX 4 |
|
#define IPCOMP_CPI_NEGOTIATE_MIN 256 |
|
#ifdef _KERNEL |
struct ipcomp_algorithm { |
int (*compress) __P((struct mbuf *, struct mbuf *, size_t *)); |
int (*decompress) __P((struct mbuf *, struct mbuf *, size_t *)); |
size_t minplen; /* minimum required length for compression */ |
}; |
|
struct ipsecrequest; |
extern const struct ipcomp_algorithm *ipcomp_algorithm_lookup __P((int)); |
extern void ipcomp4_input __P((struct mbuf *, int)); |
extern int ipcomp4_output __P((struct mbuf *, struct ipsecrequest *)); |
#endif /* KERNEL */ |
|
#endif /* _NETINET6_IPCOMP_H_ */ |