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664a31e496
is an application space macro and the applications are supposed to be free to use it as they please (but cannot). This is consistant with the other BSD's who made this change quite some time ago. More commits to come.
100 lines
3.4 KiB
C
100 lines
3.4 KiB
C
/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* RFC1827/2406 Encapsulated Security Payload.
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*/
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#ifndef _NETINET6_ESP_H_
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#define _NETINET6_ESP_H_
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struct secasvar;
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struct esp {
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u_int32_t esp_spi; /* ESP */
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/*variable size, 32bit bound*/ /* Initialization Vector */
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/*variable size*/ /* Payload data */
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/*variable size*/ /* padding */
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/*8bit*/ /* pad size */
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/*8bit*/ /* next header */
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/*8bit*/ /* next header */
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/*variable size, 32bit bound*/ /* Authentication data (new IPsec) */
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};
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struct newesp {
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u_int32_t esp_spi; /* ESP */
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u_int32_t esp_seq; /* Sequence number */
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/*variable size*/ /* (IV and) Payload data */
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/*variable size*/ /* padding */
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/*8bit*/ /* pad size */
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/*8bit*/ /* next header */
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/*8bit*/ /* next header */
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/*variable size, 32bit bound*/ /* Authentication data */
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};
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struct esptail {
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u_int8_t esp_padlen; /* pad length */
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u_int8_t esp_nxt; /* Next header */
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/*variable size, 32bit bound*/ /* Authentication data (new IPsec)*/
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};
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struct esp_algorithm_state {
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struct secasvar *sav;
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void* foo; /*per algorithm data - maybe*/
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};
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/* XXX yet to be defined */
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struct esp_algorithm {
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size_t padbound; /* pad boundary, in byte */
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int (*mature) __P((struct secasvar *));
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int keymin; /* in bits */
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int keymax; /* in bits */
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int (*ivlen) __P((struct secasvar *));
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int (*decrypt) __P((struct mbuf *, size_t,
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struct secasvar *, struct esp_algorithm *, int));
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int (*encrypt) __P((struct mbuf *, size_t, size_t,
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struct secasvar *, struct esp_algorithm *, int));
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};
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#ifdef _KERNEL
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extern struct esp_algorithm esp_algorithms[];
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/* crypt routines */
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extern int esp4_output __P((struct mbuf *, struct ipsecrequest *));
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extern void esp4_input __P((struct mbuf *, int, int));
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extern size_t esp_hdrsiz __P((struct ipsecrequest *));
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#endif
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extern int esp_auth __P((struct mbuf *, size_t, size_t,
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struct secasvar *, u_char *));
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#endif /*_NETINET6_ESP_H_*/
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