0,0 → 1,98 |
/*!\file netinet6/ah.h |
* Authentication Header. |
*/ |
|
/* $FreeBSD: src/sys/netinet6/ah.h,v 1.7 2002/04/19 04:46:22 suz Exp $ */ |
/* $KAME: ah.h,v 1.16 2001/09/04 08:43:19 itojun Exp $ */ |
|
/* |
* Copyright (C) 1995, 1996, 1997, and 1998 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. |
*/ |
|
/* |
* RFC1826/2402 authentication header. |
*/ |
|
#ifndef _NETINET6_AH_H_ |
#define _NETINET6_AH_H_ |
|
#if defined(_KERNEL) && !defined(_LKM) |
#include "opt_inet.h" |
#endif |
|
struct ah { |
u_int8_t ah_nxt; /* Next Header */ |
u_int8_t ah_len; /* Length of data, in 32bit */ |
u_int16_t ah_reserve; /* Reserved for future use */ |
u_int32_t ah_spi; /* Security parameter index */ |
/* variable size, 32bit bound*/ /* Authentication data */ |
}; |
|
struct newah { |
u_int8_t ah_nxt; /* Next Header */ |
u_int8_t ah_len; /* Length of data + 1, in 32bit */ |
u_int16_t ah_reserve; /* Reserved for future use */ |
u_int32_t ah_spi; /* Security parameter index */ |
u_int32_t ah_seq; /* Sequence number field */ |
/* variable size, 32bit bound*/ /* Authentication data */ |
}; |
|
#ifdef _KERNEL |
struct secasvar; |
|
struct ah_algorithm_state { |
struct secasvar *sav; |
void* foo; /* per algorithm data - maybe */ |
}; |
|
struct ah_algorithm { |
int (*sumsiz) __P((struct secasvar *)); |
int (*mature) __P((struct secasvar *)); |
int keymin; /* in bits */ |
int keymax; /* in bits */ |
const char *name; |
int (*init) __P((struct ah_algorithm_state *, struct secasvar *)); |
void (*update) __P((struct ah_algorithm_state *, caddr_t, size_t)); |
void (*result) __P((struct ah_algorithm_state *, caddr_t)); |
}; |
|
#define AH_MAXSUMSIZE 16 |
|
extern const struct ah_algorithm *ah_algorithm_lookup __P((int)); |
|
/* cksum routines */ |
extern int ah_hdrlen __P((struct secasvar *)); |
|
extern size_t ah_hdrsiz __P((struct ipsecrequest *)); |
extern void ah4_input __P((struct mbuf *, int)); |
extern int ah4_output __P((struct mbuf *, struct ipsecrequest *)); |
extern int ah4_calccksum __P((struct mbuf *, caddr_t, size_t, |
const struct ah_algorithm *, struct secasvar *)); |
#endif /* _KERNEL */ |
|
#endif /* _NETINET6_AH_H_ */ |