| 0,0 → 1,113 |
|---|
| /*!\file netinet6/esp.h |
| * |
| */ |
| |
| /* $FreeBSD: src/sys/netinet6/esp.h,v 1.6 2002/04/19 04:46:22 suz Exp $ */ |
| /* $KAME: esp.h,v 1.19 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. |
| */ |
| |
| /* |
| * 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 ivlenval; /* iv length, in byte */ |
| int (*mature) (struct secasvar *); |
| int keymin; /* in bits */ |
| int keymax; /* in bits */ |
| int (*schedlen) (const struct esp_algorithm *); |
| const char *name; |
| int (*ivlen) (const struct esp_algorithm *, struct secasvar *); |
| int (*decrypt) (struct mbuf *, size_t, |
| struct secasvar *, const struct esp_algorithm *, int); |
| int (*encrypt) (struct mbuf *, size_t, size_t, |
| struct secasvar *, const struct esp_algorithm *, int); |
| /* not supposed to be called directly */ |
| int (*schedule) (const struct esp_algorithm *, struct secasvar *); |
| int (*blockdecrypt) (const struct esp_algorithm *, |
| struct secasvar *, u_int8_t *, u_int8_t *); |
| int (*blockencrypt) (const struct esp_algorithm *, |
| struct secasvar *, u_int8_t *, u_int8_t *); |
| }; |
| |
| extern const struct esp_algorithm *esp_algorithm_lookup (int); |
| extern int esp_max_ivlen (void); |
| |
| /* crypt routines */ |
| extern int esp4_output (struct mbuf *, struct ipsecrequest *); |
| extern void esp4_input (struct mbuf *, int); |
| extern size_t esp_hdrsiz (struct ipsecrequest *); |
| |
| extern int esp_schedule (const struct esp_algorithm *, struct secasvar *); |
| extern int esp_auth (struct mbuf *, size_t, size_t, |
| struct secasvar *, u_char *); |
| #endif /* _KERNEL */ |
| |
| #endif /* _NETINET6_ESP_H_ */ |