2 * Copyright (c) 2003-2006 SPARTA, 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 * This software was enhanced by SPARTA ISSO under SPAWAR contract
11 * N66001-04-C-6019 ("SEFOS").
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
39 #include "opt_posix.h"
41 #include <sys/param.h>
42 #include <sys/kernel.h>
44 #include <sys/malloc.h>
45 #include <sys/module.h>
46 #include <sys/systm.h>
47 #include <sys/sysctl.h>
49 #include <security/mac/mac_framework.h>
50 #include <security/mac/mac_internal.h>
51 #include <security/mac/mac_policy.h>
54 mac_posixsem_label_alloc(void)
58 label = mac_labelzone_alloc(M_WAITOK);
59 MAC_PERFORM(posixsem_init_label, label);
64 mac_posixsem_init(struct ksem *ks)
67 if (mac_labeled & MPC_OBJECT_POSIXSEM)
68 ks->ks_label = mac_posixsem_label_alloc();
74 mac_posixsem_label_free(struct label *label)
77 MAC_PERFORM(posixsem_destroy_label, label);
78 mac_labelzone_free(label);
82 mac_posixsem_destroy(struct ksem *ks)
85 if (ks->ks_label != NULL) {
86 mac_posixsem_label_free(ks->ks_label);
92 mac_posixsem_create(struct ucred *cred, struct ksem *ks)
95 MAC_PERFORM(posixsem_create, cred, ks, ks->ks_label);
99 mac_posixsem_check_open(struct ucred *cred, struct ksem *ks)
103 MAC_CHECK(posixsem_check_open, cred, ks, ks->ks_label);
109 mac_posixsem_check_getvalue(struct ucred *active_cred, struct ucred *file_cred,
114 MAC_CHECK(posixsem_check_getvalue, active_cred, file_cred, ks,
121 mac_posixsem_check_post(struct ucred *active_cred, struct ucred *file_cred,
126 MAC_CHECK(posixsem_check_post, active_cred, file_cred, ks,
133 mac_posixsem_check_stat(struct ucred *active_cred, struct ucred *file_cred,
138 MAC_CHECK(posixsem_check_stat, active_cred, file_cred, ks,
145 mac_posixsem_check_unlink(struct ucred *cred, struct ksem *ks)
149 MAC_CHECK(posixsem_check_unlink, cred, ks, ks->ks_label);
155 mac_posixsem_check_wait(struct ucred *active_cred, struct ucred *file_cred,
160 MAC_CHECK(posixsem_check_wait, active_cred, file_cred, ks,