/*
* 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.
*/
#ifndef _SOCKADDR_UNION_DEFINED
#define _SOCKADDR_UNION_DEFINED
/*
* The union of all possible address formats we handle.
*/
union sockaddr_union {
struct sockaddr sa;
struct sockaddr_in sin;
struct sockaddr_in6 sin6;
};
#endif /* _SOCKADDR_UNION_DEFINED */
/* Security Association Index */
/* NOTE: Ensure to be same address family */
struct secasindex {
union sockaddr_union src; /* source address for SA */
union sockaddr_union dst; /* destination address for SA */
u_int16_t proto; /* IPPROTO_ESP or IPPROTO_AH */
u_int8_t mode; /* mode of protocol, see ipsec.h */
u_int32_t reqid; /* reqid id who owned this SA */
/* see IPSEC_MANUAL_REQID_MAX. */
};
/* Security Association Data Base */
struct secashead {
struct pslist_entry pslist_entry;
struct localcount localcount; /* reference count */
struct secasindex saidx;
struct sadb_ident *idents; /* source identity */
struct sadb_ident *identd; /* destination identity */
/* XXX I don't know how to use them. */
size_t idents_len; /* length of idents */
size_t identd_len; /* length of identd */
u_int8_t state; /* MATURE or DEAD. */
struct pslist_head savlist[SADB_SASTATE_MAX+1];
/* SA chain */
/* The first of this list is newer SA */
struct secashead *sah; /* back pointer to the secashead */
/*
* NB: Fields with a tdb_ prefix are part of the "glue" used
* to interface to the OpenBSD crypto support. This was done
* to distinguish this code from the mainline KAME code.
*/
const struct xformsw *tdb_xform; /* transform */
const struct enc_xform *tdb_encalgxform; /* encoding algorithm */
const struct auth_hash *tdb_authalgxform; /* authentication algorithm */
const struct comp_algo *tdb_compalgxform; /* compression algorithm */
u_int64_t tdb_cryptoid; /* crypto session id */
u_int16_t natt_type;
u_int16_t esp_frag;
};
/* replay prevention */
struct secreplay {
u_int32_t count;
u_int wsize; /* window size, i.g. 4 bytes */
u_int32_t seq; /* used by sender */
u_int32_t lastseq; /* used by receiver */
char *bitmap; /* used by receiver */
int overflow; /* overflow flag */
};
/* socket table due to send PF_KEY messages. */
struct secreg {
LIST_ENTRY(secreg) chain;
