The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/netipsec/key.h

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    1 /*      $NetBSD: key.h,v 1.3 2005/02/26 22:45:13 perry Exp $    */
    2 /*      $FreeBSD: src/sys/netipsec/key.h,v 1.1.4.1 2003/01/24 05:11:36 sam Exp $        */
    3 /*      $KAME: key.h,v 1.21 2001/07/27 03:51:30 itojun Exp $    */
    4 
    5 /*
    6  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
    7  * All rights reserved.
    8  *
    9  * Redistribution and use in source and binary forms, with or without
   10  * modification, are permitted provided that the following conditions
   11  * are met:
   12  * 1. Redistributions of source code must retain the above copyright
   13  *    notice, this list of conditions and the following disclaimer.
   14  * 2. Redistributions in binary form must reproduce the above copyright
   15  *    notice, this list of conditions and the following disclaimer in the
   16  *    documentation and/or other materials provided with the distribution.
   17  * 3. Neither the name of the project nor the names of its contributors
   18  *    may be used to endorse or promote products derived from this software
   19  *    without specific prior written permission.
   20  *
   21  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
   22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
   25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   31  * SUCH DAMAGE.
   32  */
   33 
   34 #ifndef _NETIPSEC_KEY_H_
   35 #define _NETIPSEC_KEY_H_
   36 
   37 #ifdef _KERNEL
   38 
   39 struct secpolicy;
   40 struct secpolicyindex;
   41 struct ipsecrequest;
   42 struct secasvar;
   43 struct sockaddr;
   44 struct socket;
   45 struct sadb_msg;
   46 struct sadb_x_policy;
   47 struct secasindex;
   48 union sockaddr_union;
   49 
   50 extern  int key_havesp(u_int dir);
   51 extern struct secpolicy *key_allocsp(struct secpolicyindex *, u_int,
   52         const char*, int);
   53 extern struct secpolicy *key_allocsp2(u_int32_t spi, union sockaddr_union *dst,
   54         u_int8_t proto, u_int dir, const char*, int);
   55 extern struct secpolicy *key_newsp(const char*, int);
   56 extern struct secpolicy *key_gettunnel(const struct sockaddr *,
   57         const struct sockaddr *, const struct sockaddr *,
   58         const struct sockaddr *, const char*, int);
   59 /* NB: prepend with _ for KAME IPv6 compatbility */
   60 extern void _key_freesp(struct secpolicy **, const char*, int);
   61 
   62 /*
   63  * Access to the SADB are interlocked with splsoftnet.  In particular,
   64  * holders of SA's use this to block accesses by protocol processing
   65  * that can happen either by network swi's or by continuations that
   66  * occur on crypto callbacks.  Much of this could go away if
   67  * key_checkrequest were redone.
   68  */
   69 #define KEY_ALLOCSP(spidx, dir)                                 \
   70         key_allocsp(spidx, dir, __FILE__, __LINE__)
   71 #define KEY_ALLOCSP2(spi, dst, proto, dir)                      \
   72         key_allocsp2(spi, dst, proto, dir, __FILE__, __LINE__)
   73 #define KEY_NEWSP()                                             \
   74         key_newsp(__FILE__, __LINE__)
   75 #define KEY_GETTUNNEL(osrc, odst, isrc, idst)                   \
   76         key_gettunnel(osrc, odst, isrc, idst, __FILE__, __LINE__)
   77 #define KEY_FREESP(spp)                                         \
   78         _key_freesp(spp, __FILE__, __LINE__)
   79 
   80 extern struct secasvar *key_allocsa(union sockaddr_union *, u_int, u_int32_t,
   81         const char*, int);
   82 extern void key_freesav(struct secasvar **, const char*, int);
   83 
   84 #define KEY_ALLOCSA(dst, proto, spi)                            \
   85         key_allocsa(dst, proto, spi, __FILE__, __LINE__)
   86 #define KEY_FREESAV(psav)                                       \
   87         key_freesav(psav, __FILE__, __LINE__)
   88 
   89 extern void key_freeso __P((struct socket *));
   90 extern int key_checktunnelsanity __P((struct secasvar *, u_int,
   91                                         caddr_t, caddr_t));
   92 extern int key_checkrequest
   93         __P((struct ipsecrequest *isr, const struct secasindex *));
   94 
   95 extern struct secpolicy *key_msg2sp __P((struct sadb_x_policy *,
   96         size_t, int *));
   97 extern struct mbuf *key_sp2msg __P((struct secpolicy *));
   98 extern int key_ismyaddr __P((struct sockaddr *));
   99 extern int key_cmpspidx_exactly
  100         __P((struct secpolicyindex *, struct secpolicyindex *));
  101 extern int key_cmpspidx_withmask
  102         __P((struct secpolicyindex *, struct secpolicyindex *));
  103 extern int key_spdacquire __P((struct secpolicy *));
  104 extern void key_timehandler __P((void*));
  105 extern u_long key_random __P((void));
  106 extern void key_randomfill __P((void *, size_t));
  107 extern void key_freereg __P((struct socket *));
  108 extern int key_parse __P((struct mbuf *, struct socket *));
  109 extern void key_init __P((void));
  110 extern void key_sa_recordxfer __P((struct secasvar *, struct mbuf *));
  111 extern void key_sa_routechange __P((struct sockaddr *));
  112 extern void key_sa_stir_iv __P((struct secasvar *));
  113 
  114 #ifdef MALLOC_DECLARE
  115 MALLOC_DECLARE(M_SECA);
  116 #endif /* MALLOC_DECLARE */
  117 
  118 #endif /* defined(_KERNEL) */
  119 #endif /* _NETIPSEC_KEY_H_ */

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