2 * Copyright (c) 2003-2004 Networks Associates Technology, Inc.
5 * This software was developed for the FreeBSD Project in part by Network
6 * Associates Laboratories, the Security Research Division of Network
7 * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"),
8 * as part of the DARPA CHATS research program.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
37 #include <sys/param.h>
39 #include <sys/sysctl.h>
40 #include <sys/systm.h>
44 #include <security/mac/mac_internal.h>
46 uma_zone_t zone_label;
48 static int mac_labelzone_ctor(void *mem, int size, void *arg, int flags);
49 static void mac_labelzone_dtor(void *mem, int size, void *arg);
52 mac_labelzone_init(void)
55 zone_label = uma_zcreate("MAC labels", sizeof(struct label),
56 mac_labelzone_ctor, mac_labelzone_dtor, NULL, NULL,
61 mac_labelzone_ctor(void *mem, int size, void *arg, int flags)
65 KASSERT(size == sizeof(*label), ("mac_labelzone_ctor: wrong size\n"));
67 bzero(label, sizeof(*label));
68 label->l_flags = MAC_FLAG_INITIALIZED;
73 mac_labelzone_dtor(void *mem, int size, void *arg)
77 KASSERT(size == sizeof(*label), ("mac_labelzone_dtor: wrong size\n"));
79 KASSERT(label->l_flags & MAC_FLAG_INITIALIZED,
80 ("mac_labelzone_dtor: label not initialized"));
82 bzero(label, sizeof(*label));
84 label->l_flags &= ~MAC_FLAG_INITIALIZED;
89 mac_labelzone_alloc(int flags)
92 return (uma_zalloc(zone_label, flags));
96 mac_labelzone_free(struct label *label)
99 uma_zfree(zone_label, label);