| 1 |
9 |
jlechner |
/* $FreeBSD: src/sys/netinet6/esp.h,v 1.6 2002/04/19 04:46:22 suz Exp $ */
|
| 2 |
|
|
/* $KAME: esp.h,v 1.19 2001/09/04 08:43:19 itojun Exp $ */
|
| 3 |
|
|
|
| 4 |
|
|
/*
|
| 5 |
|
|
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
|
| 6 |
|
|
* All rights reserved.
|
| 7 |
|
|
*
|
| 8 |
|
|
* Redistribution and use in source and binary forms, with or without
|
| 9 |
|
|
* modification, are permitted provided that the following conditions
|
| 10 |
|
|
* are met:
|
| 11 |
|
|
* 1. Redistributions of source code must retain the above copyright
|
| 12 |
|
|
* notice, this list of conditions and the following disclaimer.
|
| 13 |
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
| 14 |
|
|
* notice, this list of conditions and the following disclaimer in the
|
| 15 |
|
|
* documentation and/or other materials provided with the distribution.
|
| 16 |
|
|
* 3. Neither the name of the project nor the names of its contributors
|
| 17 |
|
|
* may be used to endorse or promote products derived from this software
|
| 18 |
|
|
* without specific prior written permission.
|
| 19 |
|
|
*
|
| 20 |
|
|
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
|
| 21 |
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
| 22 |
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
| 23 |
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
|
| 24 |
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
| 25 |
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
| 26 |
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
| 27 |
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
| 28 |
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
| 29 |
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
| 30 |
|
|
* SUCH DAMAGE.
|
| 31 |
|
|
*/
|
| 32 |
|
|
|
| 33 |
|
|
/*
|
| 34 |
|
|
* RFC1827/2406 Encapsulated Security Payload.
|
| 35 |
|
|
*/
|
| 36 |
|
|
|
| 37 |
|
|
#ifndef _NETINET6_ESP_H_
|
| 38 |
|
|
#define _NETINET6_ESP_H_
|
| 39 |
|
|
|
| 40 |
|
|
#if defined(_KERNEL) && !defined(_LKM)
|
| 41 |
|
|
#include "opt_inet.h"
|
| 42 |
|
|
#endif
|
| 43 |
|
|
|
| 44 |
|
|
struct esp {
|
| 45 |
|
|
u_int32_t esp_spi; /* ESP */
|
| 46 |
|
|
/* variable size, 32bit bound */ /* Initialization Vector */
|
| 47 |
|
|
/* variable size */ /* Payload data */
|
| 48 |
|
|
/* variable size */ /* padding */
|
| 49 |
|
|
/* 8bit */ /* pad size */
|
| 50 |
|
|
/* 8bit */ /* next header */
|
| 51 |
|
|
/* 8bit */ /* next header */
|
| 52 |
|
|
/* variable size, 32bit bound */ /* Authentication data (new IPsec) */
|
| 53 |
|
|
};
|
| 54 |
|
|
|
| 55 |
|
|
struct newesp {
|
| 56 |
|
|
u_int32_t esp_spi; /* ESP */
|
| 57 |
|
|
u_int32_t esp_seq; /* Sequence number */
|
| 58 |
|
|
/* variable size */ /* (IV and) Payload data */
|
| 59 |
|
|
/* variable size */ /* padding */
|
| 60 |
|
|
/* 8bit */ /* pad size */
|
| 61 |
|
|
/* 8bit */ /* next header */
|
| 62 |
|
|
/* 8bit */ /* next header */
|
| 63 |
|
|
/* variable size, 32bit bound *//* Authentication data */
|
| 64 |
|
|
};
|
| 65 |
|
|
|
| 66 |
|
|
struct esptail {
|
| 67 |
|
|
u_int8_t esp_padlen; /* pad length */
|
| 68 |
|
|
u_int8_t esp_nxt; /* Next header */
|
| 69 |
|
|
/* variable size, 32bit bound *//* Authentication data (new IPsec)*/
|
| 70 |
|
|
};
|
| 71 |
|
|
|
| 72 |
|
|
#ifdef _KERNEL
|
| 73 |
|
|
struct secasvar;
|
| 74 |
|
|
|
| 75 |
|
|
struct esp_algorithm {
|
| 76 |
|
|
size_t padbound; /* pad boundary, in byte */
|
| 77 |
|
|
int ivlenval; /* iv length, in byte */
|
| 78 |
|
|
int (*mature) __P((struct secasvar *));
|
| 79 |
|
|
int keymin; /* in bits */
|
| 80 |
|
|
int keymax; /* in bits */
|
| 81 |
|
|
int (*schedlen) __P((const struct esp_algorithm *));
|
| 82 |
|
|
const char *name;
|
| 83 |
|
|
int (*ivlen) __P((const struct esp_algorithm *, struct secasvar *));
|
| 84 |
|
|
int (*decrypt) __P((struct mbuf *, size_t,
|
| 85 |
|
|
struct secasvar *, const struct esp_algorithm *, int));
|
| 86 |
|
|
int (*encrypt) __P((struct mbuf *, size_t, size_t,
|
| 87 |
|
|
struct secasvar *, const struct esp_algorithm *, int));
|
| 88 |
|
|
/* not supposed to be called directly */
|
| 89 |
|
|
int (*schedule) __P((const struct esp_algorithm *, struct secasvar *));
|
| 90 |
|
|
int (*blockdecrypt) __P((const struct esp_algorithm *,
|
| 91 |
|
|
struct secasvar *, u_int8_t *, u_int8_t *));
|
| 92 |
|
|
int (*blockencrypt) __P((const struct esp_algorithm *,
|
| 93 |
|
|
struct secasvar *, u_int8_t *, u_int8_t *));
|
| 94 |
|
|
};
|
| 95 |
|
|
|
| 96 |
|
|
extern const struct esp_algorithm *esp_algorithm_lookup __P((int));
|
| 97 |
|
|
extern int esp_max_ivlen __P((void));
|
| 98 |
|
|
|
| 99 |
|
|
/* crypt routines */
|
| 100 |
|
|
extern int esp4_output __P((struct mbuf *, struct ipsecrequest *));
|
| 101 |
|
|
extern void esp4_input __P((struct mbuf *, int));
|
| 102 |
|
|
extern size_t esp_hdrsiz __P((struct ipsecrequest *));
|
| 103 |
|
|
|
| 104 |
|
|
extern int esp_schedule __P((const struct esp_algorithm *, struct secasvar *));
|
| 105 |
|
|
extern int esp_auth __P((struct mbuf *, size_t, size_t,
|
| 106 |
|
|
struct secasvar *, u_char *));
|
| 107 |
|
|
#endif /* _KERNEL */
|
| 108 |
|
|
|
| 109 |
|
|
#endif /* _NETINET6_ESP_H_ */
|
