2 * Copyright (c) 2003-2004 Networks Associates Technology, Inc.
3 * Copyright (c) 2006 SPARTA, Inc.
4 * Copyright (c) 2008 Apple Inc.
5 * Copyright (c) 2009 Robert N. M. Watson
8 * This software was developed for the FreeBSD Project in part by Network
9 * Associates Laboratories, the Security Research Division of Network
10 * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"),
11 * as part of the DARPA CHATS research program.
13 * This software was enhanced by SPARTA ISSO under SPAWAR contract
14 * N66001-04-C-6019 ("SEFOS").
16 * This software was developed at the University of Cambridge Computer
17 * Laboratory with support from a grant from Google, Inc.
19 * Redistribution and use in source and binary forms, with or without
20 * modification, are permitted provided that the following conditions
22 * 1. Redistributions of source code must retain the above copyright
23 * notice, this list of conditions and the following disclaimer.
24 * 2. Redistributions in binary form must reproduce the above copyright
25 * notice, this list of conditions and the following disclaimer in the
26 * documentation and/or other materials provided with the distribution.
28 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
41 #include <sys/cdefs.h>
42 __FBSDID("$FreeBSD$");
46 #include <sys/param.h>
47 #include <sys/kernel.h>
49 #include <sys/malloc.h>
50 #include <sys/mutex.h>
53 #include <sys/systm.h>
54 #include <sys/vnode.h>
55 #include <sys/mount.h>
57 #include <sys/namei.h>
58 #include <sys/sysctl.h>
61 #include <security/mac/mac_framework.h>
62 #include <security/mac/mac_internal.h>
63 #include <security/mac/mac_policy.h>
66 mac_sysv_msgmsg_label_alloc(void)
70 label = mac_labelzone_alloc(M_WAITOK);
71 MAC_POLICY_PERFORM(sysvmsg_init_label, label);
76 mac_sysvmsg_init(struct msg *msgptr)
79 if (mac_labeled & MPC_OBJECT_SYSVMSG)
80 msgptr->label = mac_sysv_msgmsg_label_alloc();
86 mac_sysv_msgqueue_label_alloc(void)
90 label = mac_labelzone_alloc(M_WAITOK);
91 MAC_POLICY_PERFORM(sysvmsq_init_label, label);
96 mac_sysvmsq_init(struct msqid_kernel *msqkptr)
99 if (mac_labeled & MPC_OBJECT_SYSVMSQ)
100 msqkptr->label = mac_sysv_msgqueue_label_alloc();
102 msqkptr->label = NULL;
106 mac_sysv_msgmsg_label_free(struct label *label)
109 MAC_POLICY_PERFORM_NOSLEEP(sysvmsg_destroy_label, label);
110 mac_labelzone_free(label);
114 mac_sysvmsg_destroy(struct msg *msgptr)
117 if (msgptr->label != NULL) {
118 mac_sysv_msgmsg_label_free(msgptr->label);
119 msgptr->label = NULL;
124 mac_sysv_msgqueue_label_free(struct label *label)
127 MAC_POLICY_PERFORM_NOSLEEP(sysvmsq_destroy_label, label);
128 mac_labelzone_free(label);
132 mac_sysvmsq_destroy(struct msqid_kernel *msqkptr)
135 if (msqkptr->label != NULL) {
136 mac_sysv_msgqueue_label_free(msqkptr->label);
137 msqkptr->label = NULL;
142 mac_sysvmsg_create(struct ucred *cred, struct msqid_kernel *msqkptr,
146 MAC_POLICY_PERFORM_NOSLEEP(sysvmsg_create, cred, msqkptr,
147 msqkptr->label, msgptr, msgptr->label);
151 mac_sysvmsq_create(struct ucred *cred, struct msqid_kernel *msqkptr)
154 MAC_POLICY_PERFORM_NOSLEEP(sysvmsq_create, cred, msqkptr,
159 mac_sysvmsg_cleanup(struct msg *msgptr)
162 MAC_POLICY_PERFORM_NOSLEEP(sysvmsg_cleanup, msgptr->label);
166 mac_sysvmsq_cleanup(struct msqid_kernel *msqkptr)
169 MAC_POLICY_PERFORM_NOSLEEP(sysvmsq_cleanup, msqkptr->label);
172 MAC_CHECK_PROBE_DEFINE3(sysvmsq_check_msgmsq, "struct ucred *",
173 "struct msg *", "struct msqid_kernel *");
176 mac_sysvmsq_check_msgmsq(struct ucred *cred, struct msg *msgptr,
177 struct msqid_kernel *msqkptr)
181 MAC_POLICY_CHECK_NOSLEEP(sysvmsq_check_msgmsq, cred, msgptr,
182 msgptr->label, msqkptr, msqkptr->label);
183 MAC_CHECK_PROBE3(sysvmsq_check_msgmsq, error, cred, msgptr, msqkptr);
188 MAC_CHECK_PROBE_DEFINE2(sysvmsq_check_msgrcv, "struct ucred *",
192 mac_sysvmsq_check_msgrcv(struct ucred *cred, struct msg *msgptr)
196 MAC_POLICY_CHECK_NOSLEEP(sysvmsq_check_msgrcv, cred, msgptr,
198 MAC_CHECK_PROBE2(sysvmsq_check_msgrcv, error, cred, msgptr);
203 MAC_CHECK_PROBE_DEFINE2(sysvmsq_check_msgrmid, "struct ucred *",
207 mac_sysvmsq_check_msgrmid(struct ucred *cred, struct msg *msgptr)
211 MAC_POLICY_CHECK_NOSLEEP(sysvmsq_check_msgrmid, cred, msgptr,
213 MAC_CHECK_PROBE2(sysvmsq_check_msgrmid, error, cred, msgptr);
218 MAC_CHECK_PROBE_DEFINE2(sysvmsq_check_msqget, "struct ucred *",
219 "struct msqid_kernel *");
222 mac_sysvmsq_check_msqget(struct ucred *cred, struct msqid_kernel *msqkptr)
226 MAC_POLICY_CHECK_NOSLEEP(sysvmsq_check_msqget, cred, msqkptr,
228 MAC_CHECK_PROBE2(sysvmsq_check_msqget, error, cred, msqkptr);
233 MAC_CHECK_PROBE_DEFINE2(sysvmsq_check_msqsnd, "struct ucred *",
234 "struct msqid_kernel *");
237 mac_sysvmsq_check_msqsnd(struct ucred *cred, struct msqid_kernel *msqkptr)
241 MAC_POLICY_CHECK_NOSLEEP(sysvmsq_check_msqsnd, cred, msqkptr,
243 MAC_CHECK_PROBE2(sysvmsq_check_msqsnd, error, cred, msqkptr);
248 MAC_CHECK_PROBE_DEFINE2(sysvmsq_check_msqrcv, "struct ucred *",
249 "struct msqid_kernel *");
252 mac_sysvmsq_check_msqrcv(struct ucred *cred, struct msqid_kernel *msqkptr)
256 MAC_POLICY_CHECK_NOSLEEP(sysvmsq_check_msqrcv, cred, msqkptr,
258 MAC_CHECK_PROBE2(sysvmsq_check_msqrcv, error, cred, msqkptr);
263 MAC_CHECK_PROBE_DEFINE3(sysvmsq_check_msqctl, "struct ucred *",
264 "struct msqid_kernel *", "int");
267 mac_sysvmsq_check_msqctl(struct ucred *cred, struct msqid_kernel *msqkptr,
272 MAC_POLICY_CHECK_NOSLEEP(sysvmsq_check_msqctl, cred, msqkptr,
273 msqkptr->label, cmd);
274 MAC_CHECK_PROBE3(sysvmsq_check_msqctl, error, cred, msqkptr, cmd);