2000-07-04 16:35:15 +00:00
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/* $FreeBSD$ */
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/* $KAME: keydb.c,v 1.64 2000/05/11 17:02:30 itojun 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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#include "opt_inet.h"
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#include "opt_inet6.h"
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/errno.h>
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#include <sys/queue.h>
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#include <net/if.h>
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#include <net/route.h>
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#include <netinet/in.h>
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#include <net/pfkeyv2.h>
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#include <netkey/keydb.h>
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#include <netinet6/ipsec.h>
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#include <net/net_osdep.h>
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MALLOC_DEFINE(M_SECA, "key mgmt", "security associations, key management");
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2002-03-20 02:39:27 +00:00
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static void keydb_delsecasvar(struct secasvar *);
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2000-07-04 16:35:15 +00:00
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/*
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* secpolicy management
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*/
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struct secpolicy *
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keydb_newsecpolicy()
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{
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struct secpolicy *p;
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p = (struct secpolicy *)malloc(sizeof(*p), M_SECA, M_NOWAIT);
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if (!p)
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return p;
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bzero(p, sizeof(*p));
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return p;
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}
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void
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keydb_delsecpolicy(p)
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struct secpolicy *p;
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{
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free(p, M_SECA);
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}
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/*
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* secashead management
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*/
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struct secashead *
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keydb_newsecashead()
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{
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struct secashead *p;
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int i;
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p = (struct secashead *)malloc(sizeof(*p), M_SECA, M_NOWAIT);
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if (!p)
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return p;
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bzero(p, sizeof(*p));
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for (i = 0; i < sizeof(p->savtree)/sizeof(p->savtree[0]); i++)
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LIST_INIT(&p->savtree[i]);
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return p;
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}
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void
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keydb_delsecashead(p)
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struct secashead *p;
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{
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free(p, M_SECA);
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}
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/*
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* secasvar management (reference counted)
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*/
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struct secasvar *
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keydb_newsecasvar()
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{
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struct secasvar *p;
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p = (struct secasvar *)malloc(sizeof(*p), M_SECA, M_NOWAIT);
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if (!p)
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return p;
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bzero(p, sizeof(*p));
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p->refcnt = 1;
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return p;
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}
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void
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keydb_refsecasvar(p)
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struct secasvar *p;
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{
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int s;
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s = splnet();
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p->refcnt++;
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splx(s);
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}
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void
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keydb_freesecasvar(p)
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struct secasvar *p;
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{
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int s;
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s = splnet();
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p->refcnt--;
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/* negative refcnt will cause panic intentionally */
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if (p->refcnt <= 0)
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keydb_delsecasvar(p);
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splx(s);
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}
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static void
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keydb_delsecasvar(p)
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struct secasvar *p;
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{
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if (p->refcnt)
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panic("keydb_delsecasvar called with refcnt != 0");
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free(p, M_SECA);
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}
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/*
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* secreplay management
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*/
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struct secreplay *
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keydb_newsecreplay(wsize)
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size_t wsize;
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{
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struct secreplay *p;
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p = (struct secreplay *)malloc(sizeof(*p), M_SECA, M_NOWAIT);
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if (!p)
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return p;
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bzero(p, sizeof(*p));
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if (wsize != 0) {
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p->bitmap = (caddr_t)malloc(wsize, M_SECA, M_NOWAIT);
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if (!p->bitmap) {
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free(p, M_SECA);
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return NULL;
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}
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bzero(p->bitmap, wsize);
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}
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p->wsize = wsize;
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return p;
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}
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void
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keydb_delsecreplay(p)
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struct secreplay *p;
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{
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if (p->bitmap)
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free(p->bitmap, M_SECA);
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free(p, M_SECA);
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}
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/*
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* secreg management
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*/
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struct secreg *
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keydb_newsecreg()
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{
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struct secreg *p;
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p = (struct secreg *)malloc(sizeof(*p), M_SECA, M_NOWAIT);
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if (p)
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bzero(p, sizeof(*p));
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return p;
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}
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void
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keydb_delsecreg(p)
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struct secreg *p;
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{
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free(p, M_SECA);
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}
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