| 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_ */ |