202 lines
6.0 KiB
C
202 lines
6.0 KiB
C
/* $NetBSD: keydb.h,v 1.3 1999/07/03 21:32:48 thorpej Exp $ */
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/*
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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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#ifndef _NETKEY_KEYDB_H_
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#define _NETKEY_KEYDB_H_
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#ifdef __NetBSD__
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# ifdef _KERNEL
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# define KERNEL
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# endif
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#endif
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#ifdef KERNEL
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#include <netkey/key_var.h>
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/* Must include ipsec.h and keyv2.h before in its use. */
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/* management for the tree and nodes. */
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struct keytree {
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struct keynode *head;
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struct keynode *tail;
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int len;
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};
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struct keynode {
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struct keynode *next;
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struct keynode *prev;
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struct keytree *back; /* pointer to the keytree */
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};
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/* index structure for SPD and SAD */
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/* NOTE: All field are network byte order. */
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struct secindex {
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u_int8_t family; /* AF_INET or AF_INET6 */
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u_int8_t prefs; /* preference for srouce address in bits */
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u_int8_t prefd; /* preference for destination address in bits */
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u_int8_t proto; /* upper layer Protocol */
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u_int16_t ports; /* source port */
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u_int16_t portd; /* destination port */
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union {
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#if 0 /* #include dependency... */
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struct in_addr src4;
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struct in6_addr src6;
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#endif
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u_int8_t srcany[16]; /*guarantee minimum size*/
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} src; /* buffer for source address */
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union {
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#if 0 /* #include dependency... */
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struct in_addr dst4;
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struct in6_addr dst6;
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#endif
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u_int8_t dstany[16]; /*guarantee minimum size*/
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} dst; /* buffer for destination address */
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};
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/* direction of SA */
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#define SADB_X_DIR_UNKNOWN 0 /* initial */
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#define SADB_X_DIR_INBOUND 1
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#define SADB_X_DIR_OUTBOUND 2
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#define SADB_X_DIR_BIDIRECT 3 /* including loopback */
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#define SADB_X_DIR_MAX 4
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#define SADB_X_DIR_INVALID 4
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/*
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* Since X_DIR_INVALID is equal to SADB_X_DIR_MAX,
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* it can be used just as flag. The other are too
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* used for loop counter.
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*/
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/* Security Association Data Base */
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struct secasindex {
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struct secasindex *next;
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struct secasindex *prev;
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struct keytree *saidxt; /* back pointer to */
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/* the top of SA index tree */
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struct secindex idx; /* security index */
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struct keytree satree[SADB_SASTATE_MAX+1];
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/* SA chain */
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struct route sa_route; /* XXX */
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};
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/* Security Association */
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struct secas {
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struct secas *next;
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struct secas *prev;
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struct keytree *sat; /* back pointer to the top of SA tree */
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int refcnt; /* reference count */
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u_int8_t state; /* Status of this Association */
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u_int8_t type; /* Type of this association: protocol */
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u_int8_t alg_auth; /* Authentication Algorithm Identifier*/
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u_int8_t alg_enc; /* Cipher Algorithm Identifier */
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u_int32_t spi; /* SPI Value, network byte order */
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u_int32_t flags; /* holder for SADB_KEY_FLAGS */
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struct sadb_key *key_auth; /* Key for Authentication */
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/* length has been shifted up to 3. */
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struct sadb_key *key_enc; /* Key for Encryption */
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/* length has been shifted up to 3. */
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struct sockaddr *proxy; /* Proxy IP address for Destination */
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struct secreplay *replay; /* replay prevention */
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u_int32_t tick; /* for lifetime */
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struct sadb_lifetime *lft_c; /* CURRENT lifetime, it's constant. */
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struct sadb_lifetime *lft_h; /* HARD lifetime */
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struct sadb_lifetime *lft_s; /* SOFT lifetime */
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/* sadb_lifetime_len is in 32 bits. */
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caddr_t iv; /* Initilization Vector */
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u_int ivlen; /* XXX: quick hack */
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caddr_t misc1; /* the use for example DES's setkey. */
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caddr_t misc2;
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caddr_t misc3;
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u_int32_t seq; /* sequence number */
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u_int32_t pid; /* pid */
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struct secasindex *saidx; /* back pointer to the secasindex */
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};
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/* replay prevention */
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struct secreplay {
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u_int32_t count;
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u_int wsize; /* window size, i.g. 4 bytes */
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u_int32_t seq; /* used by sender */
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u_int32_t lastseq; /* used by receiver */
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caddr_t bitmap; /* used by receiver */
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};
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/* socket table due to send PF_KEY messages. */
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struct secreg {
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struct secreg *next;
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struct secreg *prev;
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struct keytree *regt; /* back pointer to the top of secreg tree */
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struct socket *so;
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};
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#ifndef IPSEC_BLOCK_ACQUIRE
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/* acquiring list table. */
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struct secacq {
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struct secacq *next;
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struct secacq *prev;
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struct keytree *acqt; /* back pointer to the top of secacq tree */
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#if 1
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struct secindex idx; /* security index */
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u_int8_t proto; /* Type of this association: IPsec protocol */
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u_int8_t proxy[16]; /* buffer for proxy address */
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#else
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u_int8_t hash[16];
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#endif
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u_int32_t seq; /* sequence number */
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u_int32_t tick; /* for lifetime */
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int count; /* for lifetime */
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};
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#endif
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/* Sensitivity Level Specification */
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/* nothing */
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#define SADB_KILL_INTERVAL 600 /* six seconds */
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struct key_cb {
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int key_count;
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int any_count;
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};
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#endif /* KERNEL */
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#endif /* _NETKEY_KEYDB_H_ */
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