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- /* $KAME: keydb.h,v 1.9 2000/02/22 14:06:41 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.
- */
-
- #ifndef _NETKEY_KEYDB_H_
- #define _NETKEY_KEYDB_H_
-
- #ifdef KERNEL
-
- #include <netkey/key_var.h>
-
- /* Security Assocciation Index */
- /* NOTE: Ensure to be same address family */
- struct secasindex {
- struct sockaddr_storage src; /* srouce address for SA */
- struct sockaddr_storage 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 {
- LIST_ENTRY(secashead) chain;
-
- struct secasindex saidx;
-
- struct sadb_ident *idents; /* source identity */
- struct sadb_ident *identd; /* destination identity */
- /* XXX I don't know how to use them. */
-
- u_int8_t state; /* MATURE or DEAD. */
- LIST_HEAD(_satree, secasvar) savtree[SADB_SASTATE_MAX+1];
- /* SA chain */
- /* The first of this list is newer SA */
-
- struct route sa_route; /* route cache */
- };
-
- /* Security Association */
- struct secasvar {
- LIST_ENTRY(secasvar) chain;
-
- int refcnt; /* reference count */
- u_int8_t state; /* Status of this Association */
-
- u_int8_t alg_auth; /* Authentication Algorithm Identifier*/
- u_int8_t alg_enc; /* Cipher Algorithm Identifier */
- u_int32_t spi; /* SPI Value, network byte order */
- u_int32_t flags; /* holder for SADB_KEY_FLAGS */
-
- struct sadb_key *key_auth; /* Key for Authentication */
- /* length has been shifted up to 3. */
- struct sadb_key *key_enc; /* Key for Encryption */
- /* length has been shifted up to 3. */
- caddr_t iv; /* Initilization Vector */
- u_int ivlen; /* length of IV */
- #if 0
- caddr_t misc1;
- caddr_t misc2;
- caddr_t misc3;
- #endif
-
- struct secreplay *replay; /* replay prevention */
- u_int32_t tick; /* for lifetime */
-
- struct sadb_lifetime *lft_c; /* CURRENT lifetime, it's constant. */
- struct sadb_lifetime *lft_h; /* HARD lifetime */
- struct sadb_lifetime *lft_s; /* SOFT lifetime */
-
- u_int32_t seq; /* sequence number */
- pid_t pid; /* message's pid */
-
- struct secashead *sah; /* back pointer to the secashead */
- };
-
- /* 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 */
- caddr_t bitmap; /* used by receiver */
- int overflow; /* overflow flag */
- };
-
- /* socket table due to send PF_KEY messages. */
- struct secreg {
- LIST_ENTRY(secreg) chain;
-
- struct socket *so;
- };
-
- #ifndef IPSEC_NONBLOCK_ACQUIRE
- /* acquiring list table. */
- struct secacq {
- LIST_ENTRY(secacq) chain;
-
- struct secasindex saidx;
-
- u_int32_t seq; /* sequence number */
- u_int32_t tick; /* for lifetime */
- int count; /* for lifetime */
- };
- #endif
-
- /* Sensitivity Level Specification */
- /* nothing */
-
- #define SADB_KILL_INTERVAL 600 /* six seconds */
-
- struct key_cb {
- int key_count;
- int any_count;
- };
-
- /* secpolicy */
- extern struct secpolicy *keydb_newsecpolicy __P((void));
- extern void keydb_delsecpolicy __P((struct secpolicy *));
- /* secashead */
- extern struct secashead *keydb_newsecashead __P((void));
- extern void keydb_delsecashead __P((struct secashead *));
- /* secasvar */
- extern struct secasvar *keydb_newsecasvar __P((void));
- extern void keydb_refsecasvar __P((struct secasvar *));
- extern void keydb_freesecasvar __P((struct secasvar *));
- /* secreplay */
- extern struct secreplay *keydb_newsecreplay __P((size_t));
- extern void keydb_delsecreplay __P((struct secreplay *));
- /* secreg */
- extern struct secreg *keydb_newsecreg __P((void));
- extern void keydb_delsecreg __P((struct secreg *));
-
- #endif /* KERNEL */
-
- #endif /* _NETKEY_KEYDB_H_ */
-