110 lines
3.9 KiB
C
110 lines
3.9 KiB
C
/* $NetBSD: esp.h,v 1.11 2000/07/23 08:24:12 itojun Exp $ */
|
|
/* $KAME: esp.h,v 1.11 2000/07/23 08:23:29 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.
|
|
*/
|
|
|
|
/*
|
|
* RFC1827/2406 Encapsulated Security Payload.
|
|
*/
|
|
|
|
#ifndef _NETINET6_ESP_H_
|
|
#define _NETINET6_ESP_H_
|
|
|
|
#if defined(_KERNEL) && !defined(_LKM)
|
|
#include "opt_inet.h"
|
|
#endif
|
|
|
|
struct esp {
|
|
u_int32_t esp_spi; /* ESP */
|
|
/*variable size, 32bit bound*/ /* Initialization Vector */
|
|
/*variable size*/ /* Payload data */
|
|
/*variable size*/ /* padding */
|
|
/*8bit*/ /* pad size */
|
|
/*8bit*/ /* next header */
|
|
/*8bit*/ /* next header */
|
|
/*variable size, 32bit bound*/ /* Authentication data (new IPsec) */
|
|
};
|
|
|
|
struct newesp {
|
|
u_int32_t esp_spi; /* ESP */
|
|
u_int32_t esp_seq; /* Sequence number */
|
|
/*variable size*/ /* (IV and) Payload data */
|
|
/*variable size*/ /* padding */
|
|
/*8bit*/ /* pad size */
|
|
/*8bit*/ /* next header */
|
|
/*8bit*/ /* next header */
|
|
/*variable size, 32bit bound*/ /* Authentication data */
|
|
};
|
|
|
|
struct esptail {
|
|
u_int8_t esp_padlen; /* pad length */
|
|
u_int8_t esp_nxt; /* Next header */
|
|
/*variable size, 32bit bound*/ /* Authentication data (new IPsec)*/
|
|
};
|
|
|
|
#ifdef _KERNEL
|
|
struct secasvar;
|
|
|
|
struct esp_algorithm {
|
|
size_t padbound; /* pad boundary, in byte */
|
|
int (*mature) __P((struct secasvar *));
|
|
int keymin; /* in bits */
|
|
int keymax; /* in bits */
|
|
size_t schedlen;
|
|
const char *name;
|
|
int (*ivlen) __P((struct secasvar *));
|
|
int (*decrypt) __P((struct mbuf *, size_t,
|
|
struct secasvar *, const struct esp_algorithm *, int));
|
|
int (*encrypt) __P((struct mbuf *, size_t, size_t,
|
|
struct secasvar *, const struct esp_algorithm *, int));
|
|
/* not supposed to be called directly */
|
|
int (*schedule) __P((const struct esp_algorithm *, struct secasvar *));
|
|
};
|
|
|
|
extern const struct esp_algorithm *esp_algorithm_lookup __P((int));
|
|
|
|
/* crypt routines */
|
|
extern int esp4_output __P((struct mbuf *, struct ipsecrequest *));
|
|
extern void esp4_input __P((struct mbuf *, ...));
|
|
extern size_t esp_hdrsiz __P((struct ipsecrequest *));
|
|
|
|
#ifdef INET6
|
|
extern int esp6_output __P((struct mbuf *, u_char *, struct mbuf *,
|
|
struct ipsecrequest *));
|
|
extern int esp6_input __P((struct mbuf **, int *, int));
|
|
#endif /* INET6 */
|
|
|
|
extern int esp_schedule __P((const struct esp_algorithm *, struct secasvar *));
|
|
extern int esp_auth __P((struct mbuf *, size_t, size_t,
|
|
struct secasvar *, u_char *));
|
|
#endif /*_KERNEL*/
|
|
|
|
#endif /*_NETINET6_ESP_H_*/
|