sys/netkey/key.h

   1 /*      $NetBSD: key.h,v 1.22 2007/03/04 06:03:34 christos Exp $        */
   2 /*      $KAME: key.h,v 1.32 2003/09/07 05:25:20 itojun Exp $    */
   3
   4 /*
   5  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. Neither the name of the project nor the names of its contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32
  33 #ifndef _NETKEY_KEY_H_
  34 #define _NETKEY_KEY_H_
  35
  36 #ifdef _KERNEL
  37
  38 #if defined(_KERNEL_OPT)
  39 #include "opt_ipsec.h"
  40 #endif
  41
  42 #include <sys/queue.h>
  43
  44 extern struct key_cb key_cb;
  45
  46 extern TAILQ_HEAD(_satailq, secasvar) satailq;
  47 extern TAILQ_HEAD(_sptailq, secpolicy) sptailq;
  48
  49 struct secpolicy;
  50 struct secpolicyindex;
  51 struct ipsecrequest;
  52 struct secasvar;
  53 struct sockaddr;
  54 struct socket;
  55 struct sadb_msg;
  56 struct sadb_x_policy;
  57
  58 extern struct secpolicy *key_allocsp(u_int16_t, struct secpolicyindex *,
  59         u_int);
  60 extern int key_checkrequest
  61 (struct ipsecrequest *isr, struct secasindex *);
  62 extern struct secasvar *key_allocsa(u_int, const void *, const void *, u_int,
  63                                     u_int32_t, u_int16_t, u_int16_t);
  64 extern struct secpolicy *key_getspbyid(u_int32_t);
  65 extern void key_freesp(struct secpolicy *);
  66 extern void key_freesav(struct secasvar *);
  67 extern struct secpolicy *key_newsp(u_int32_t);
  68 extern struct secpolicy *key_msg2sp(struct sadb_x_policy *,
  69         size_t, int *);
  70 extern struct mbuf *key_sp2msg(struct secpolicy *);
  71 extern int key_cmpspidx_exactly
  72 (struct secpolicyindex *, struct secpolicyindex *);
  73 extern int key_cmpspidx_withmask
  74 (struct secpolicyindex *, struct secpolicyindex *);
  75 extern int key_spdacquire(struct secpolicy *);
  76 extern struct mbuf *key_setdumpsp(struct secpolicy *,
  77         u_int8_t, u_int32_t, u_int32_t);
  78 extern void key_timehandler(void *);
  79 extern void key_randomfill(void *, size_t);
  80 extern void key_freereg(struct socket *);
  81 struct mbuf *key_setdumpsa_spi(u_int32_t);
  82 extern int key_parse(struct mbuf *, struct socket *);
  83 extern void key_init(void);
  84 extern int key_checktunnelsanity(struct secasvar *, u_int,
  85                                         void *, void *);
  86 extern void key_sa_recordxfer(struct secasvar *, struct mbuf *);
  87 extern void key_sa_routechange(struct sockaddr *);
  88 extern void key_sa_stir_iv(struct secasvar *);
  89
  90 extern int key_sysctl(int *, u_int, void *, size_t *, void *, size_t);
  91 #ifdef IPSEC_NAT_T
  92 u_int16_t key_portfromsaddr(struct sockaddr *);
  93 #define KEY_PORTFROMSADDR(saddr) key_portfromsaddr((struct sockaddr *)(saddr))
  94 #endif
  95
  96 #endif /* defined(_KERNEL) */
  97 #endif /* !_NETKEY_KEY_H_ */