NetBSD/sys/netipsec/key.h
drochner bc5ee3cb6d treat "struct secpolicyindex" and "struct secasindex" as "const" once
they are initialized -- during lifetime, no changes are expected
plus some constification of input to comparision functions etc
mostly required by the former
2011-02-21 22:28:18 +00:00

123 lines
4.7 KiB
C

/* $NetBSD: key.h,v 1.9 2011/02/21 22:28:19 drochner 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(const struct secpolicyindex *, u_int,
const char*, int);
struct secpolicy *key_allocsp2(u_int32_t spi, const 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 (const struct secpolicy *);
int key_ismyaddr (const struct sockaddr *);
int key_cmpspidx_exactly (const struct secpolicyindex *, const struct secpolicyindex *);
int key_cmpspidx_withmask (const struct secpolicyindex *, const struct secpolicyindex *);
int key_spdacquire (const 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_ */