/*
* Copyright (c) 2016 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
*
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
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*
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/* $KAME: keydb.c,v 1.61 2000/03/25 07:24:13 sumikawa 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.
*/
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/errno.h>
#include <sys/queue.h>
#include <net/if.h>
#include <net/route.h>
#include <netinet/in.h>
#include <net/pfkeyv2.h>
#include <netkey/key.h>
#include <netkey/keydb.h>
#include <netinet6/ipsec.h>
#include <net/net_osdep.h>
// static void keydb_delsecasvar(struct secasvar *); // not used
/*
* secpolicy management
*/
struct secpolicy *
keydb_newsecpolicy(void)
{
LCK_MTX_ASSERT(sadb_mutex, LCK_MTX_ASSERT_NOTOWNED);
return kalloc_type(struct secpolicy, Z_WAITOK | Z_ZERO);
}
void
keydb_delsecpolicy(struct secpolicy *p)
{
kfree_type(struct secpolicy, p);
}
/*
* secashead management
*/
struct secashead *
keydb_newsecashead(void)
{
struct secashead *p;
LCK_MTX_ASSERT(sadb_mutex, LCK_MTX_ASSERT_OWNED);
p = kalloc_type(struct secashead, Z_NOWAIT | Z_ZERO);
if (!p) {
lck_mtx_unlock(sadb_mutex);
p = kalloc_type(struct secashead, Z_WAITOK | Z_ZERO | Z_NOFAIL);
lck_mtx_lock(sadb_mutex);
}
for (size_t i = 0; i < ARRAY_COUNT(p->savtree); i++) {
LIST_INIT(&p->savtree[i]);
}
return p;
}
/*
* secreplay management
*/
struct secreplay *
keydb_newsecreplay(u_int8_t wsize)
{
struct secreplay *p;
caddr_t tmp_bitmap = NULL;
LCK_MTX_ASSERT(sadb_mutex, LCK_MTX_ASSERT_OWNED);
p = kalloc_type(struct secreplay, Z_NOWAIT | Z_ZERO);
if (!p) {
lck_mtx_unlock(sadb_mutex);
p = kalloc_type(struct secreplay, Z_WAITOK | Z_ZERO | Z_NOFAIL);
lck_mtx_lock(sadb_mutex);
}
if (wsize != 0) {
tmp_bitmap = (caddr_t)kalloc_data(wsize, Z_NOWAIT | Z_ZERO);
if (!tmp_bitmap) {
lck_mtx_unlock(sadb_mutex);
tmp_bitmap = (caddr_t)kalloc_data(wsize, Z_WAITOK | Z_ZERO | Z_NOFAIL);
lck_mtx_lock(sadb_mutex);
}
p->bitmap = tmp_bitmap;
p->wsize = wsize;
}
return p;
}
void
keydb_delsecreplay(struct secreplay *p)
{
if (p->bitmap) {
kfree_data_sized_by(p->bitmap, p->wsize);
}
kfree_type(struct secreplay, p);
}