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

     /*      $NetBSD: key.h,v 1.8 2007/07/07 18:38:23 degroote Exp $ */
     /*      $FreeBSD: src/sys/netipsec/key.h,v 1.1.4.1 2003/01/24 05:11:36 sam Exp $        */
     /*      $KAME: key.h,v 1.21 2001/07/27 03:51:30 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 _NETIPSEC_KEY_H_
    #define _NETIPSEC_KEY_H_
    
    #ifdef _KERNEL
    
    #include "opt_ipsec.h"
    
    struct secpolicy;
    struct secpolicyindex;
    struct ipsecrequest;
    struct secasvar;
    struct sockaddr;
    struct socket;
    struct sadb_msg;
    struct sadb_x_policy;
    struct secasindex;
    union sockaddr_union;
    
    int key_havesp(u_int dir);
    struct secpolicy *key_allocsp(struct secpolicyindex *, u_int,
            const char*, int);
    struct secpolicy *key_allocsp2(u_int32_t spi, union sockaddr_union *dst,
            u_int8_t proto, u_int dir, const char*, int);
    struct secpolicy *key_newsp(const char*, int);
    struct secpolicy *key_gettunnel(const struct sockaddr *,
            const struct sockaddr *, const struct sockaddr *,
            const struct sockaddr *, const char*, int);
    /* NB: prepend with _ for KAME IPv6 compatbility */
    void _key_freesp(struct secpolicy **, const char*, int);
    
    /*
     * Access to the SADB are interlocked with splsoftnet.  In particular,
     * holders of SA's use this to block accesses by protocol processing
     * that can happen either by network swi's or by continuations that
     * occur on crypto callbacks.  Much of this could go away if
     * key_checkrequest were redone.
     */
    #define KEY_ALLOCSP(spidx, dir)                                 \
            key_allocsp(spidx, dir, __FILE__, __LINE__)
    #define KEY_ALLOCSP2(spi, dst, proto, dir)                      \
            key_allocsp2(spi, dst, proto, dir, __FILE__, __LINE__)
    #define KEY_NEWSP()                                             \
            key_newsp(__FILE__, __LINE__)
    #define KEY_GETTUNNEL(osrc, odst, isrc, idst)                   \
            key_gettunnel(osrc, odst, isrc, idst, __FILE__, __LINE__)
    #define KEY_FREESP(spp)                                         \
            _key_freesp(spp, __FILE__, __LINE__)
    
    struct secasvar *key_allocsa(const union sockaddr_union *, 
                    u_int, u_int32_t, u_int16_t, u_int16_t, const char*, int);
    void key_freesav(struct secasvar **, const char*, int);
    
    #define KEY_ALLOCSA(dst, proto, spi, sport, dport)                              \
            key_allocsa(dst, proto, spi, sport, dport,  __FILE__, __LINE__)
    #define KEY_FREESAV(psav)                                       \
            key_freesav(psav, __FILE__, __LINE__)
    
    void key_freeso (struct socket *);
    int key_checktunnelsanity (struct secasvar *, u_int, void *, void *);
    int key_checkrequest (struct ipsecrequest *isr, const struct secasindex *);
    
    struct secpolicy *key_msg2sp (struct sadb_x_policy *, size_t, int *);
    struct mbuf *key_sp2msg (struct secpolicy *);
    int key_ismyaddr (struct sockaddr *);
    int key_cmpspidx_exactly (struct secpolicyindex *, struct secpolicyindex *);
    int key_cmpspidx_withmask (struct secpolicyindex *, struct secpolicyindex *);
   int key_spdacquire (struct secpolicy *);
   void key_timehandler (void*);
   u_long key_random (void);
   void key_randomfill (void *, size_t);
   void key_freereg (struct socket *);
   int key_parse (struct mbuf *, struct socket *);
   void key_init (void);
   void key_sa_recordxfer (struct secasvar *, struct mbuf *);
   void key_sa_routechange (struct sockaddr *);
   void key_sa_stir_iv (struct secasvar *);
   
   #ifdef IPSEC_NAT_T
   u_int16_t key_portfromsaddr (const union sockaddr_union *);
   #endif
   
   
   
   #ifdef MALLOC_DECLARE
   MALLOC_DECLARE(M_SECA);
   #endif /* MALLOC_DECLARE */
   
   #endif /* defined(_KERNEL) */
   #endif /* !_NETIPSEC_KEY_H_ */

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