xref: /freebsd/sys/security/mac_none/mac_none.c (revision dc858fcabedb57c5e9351fdd5a1d994e39b2a88e)
1d8a7b7a3SRobert Watson /*-
2d8a7b7a3SRobert Watson  * Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson
3d8a7b7a3SRobert Watson  * Copyright (c) 2001, 2002 Networks Associates Technology, Inc.
4d8a7b7a3SRobert Watson  * All rights reserved.
5d8a7b7a3SRobert Watson  *
6d8a7b7a3SRobert Watson  * This software was developed by Robert Watson for the TrustedBSD Project.
7d8a7b7a3SRobert Watson  *
8dc858fcaSRobert Watson  * This software was developed for the FreeBSD Project in part by Network
9dc858fcaSRobert Watson  * Associates Laboratories, the Security Research Division of Network
10dc858fcaSRobert Watson  * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"),
11dc858fcaSRobert Watson  * as part of the DARPA CHATS research program.
12d8a7b7a3SRobert Watson  *
13d8a7b7a3SRobert Watson  * Redistribution and use in source and binary forms, with or without
14d8a7b7a3SRobert Watson  * modification, are permitted provided that the following conditions
15d8a7b7a3SRobert Watson  * are met:
16d8a7b7a3SRobert Watson  * 1. Redistributions of source code must retain the above copyright
17d8a7b7a3SRobert Watson  *    notice, this list of conditions and the following disclaimer.
18d8a7b7a3SRobert Watson  * 2. Redistributions in binary form must reproduce the above copyright
19d8a7b7a3SRobert Watson  *    notice, this list of conditions and the following disclaimer in the
20d8a7b7a3SRobert Watson  *    documentation and/or other materials provided with the distribution.
21d8a7b7a3SRobert Watson  *
22d8a7b7a3SRobert Watson  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
23d8a7b7a3SRobert Watson  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24d8a7b7a3SRobert Watson  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25d8a7b7a3SRobert Watson  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
26d8a7b7a3SRobert Watson  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27d8a7b7a3SRobert Watson  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28d8a7b7a3SRobert Watson  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29d8a7b7a3SRobert Watson  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30d8a7b7a3SRobert Watson  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31d8a7b7a3SRobert Watson  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32d8a7b7a3SRobert Watson  * SUCH DAMAGE.
33d8a7b7a3SRobert Watson  *
34d8a7b7a3SRobert Watson  * $FreeBSD$
35d8a7b7a3SRobert Watson  */
36d8a7b7a3SRobert Watson 
37d8a7b7a3SRobert Watson /*
38d8a7b7a3SRobert Watson  * Developed by the TrustedBSD Project.
39d8a7b7a3SRobert Watson  * Generic mandatory access module that does nothing.
40d8a7b7a3SRobert Watson  */
41d8a7b7a3SRobert Watson 
42d8a7b7a3SRobert Watson #include <sys/types.h>
43d8a7b7a3SRobert Watson #include <sys/param.h>
44d8a7b7a3SRobert Watson #include <sys/acl.h>
45d8a7b7a3SRobert Watson #include <sys/conf.h>
46763bbd2fSRobert Watson #include <sys/extattr.h>
47d8a7b7a3SRobert Watson #include <sys/kernel.h>
48d8a7b7a3SRobert Watson #include <sys/mac.h>
49d8a7b7a3SRobert Watson #include <sys/mount.h>
50d8a7b7a3SRobert Watson #include <sys/proc.h>
51d8a7b7a3SRobert Watson #include <sys/systm.h>
52d8a7b7a3SRobert Watson #include <sys/sysproto.h>
53d8a7b7a3SRobert Watson #include <sys/sysent.h>
54d8a7b7a3SRobert Watson #include <sys/vnode.h>
55d8a7b7a3SRobert Watson #include <sys/file.h>
56d8a7b7a3SRobert Watson #include <sys/socket.h>
57d8a7b7a3SRobert Watson #include <sys/socketvar.h>
58d8a7b7a3SRobert Watson #include <sys/pipe.h>
59d8a7b7a3SRobert Watson #include <sys/sysctl.h>
60d8a7b7a3SRobert Watson 
61d8a7b7a3SRobert Watson #include <fs/devfs/devfs.h>
62d8a7b7a3SRobert Watson 
63d8a7b7a3SRobert Watson #include <net/bpfdesc.h>
64d8a7b7a3SRobert Watson #include <net/if.h>
65d8a7b7a3SRobert Watson #include <net/if_types.h>
66d8a7b7a3SRobert Watson #include <net/if_var.h>
67d8a7b7a3SRobert Watson 
68d8a7b7a3SRobert Watson #include <netinet/in.h>
69d8a7b7a3SRobert Watson #include <netinet/ip_var.h>
70d8a7b7a3SRobert Watson 
71d8a7b7a3SRobert Watson #include <vm/vm.h>
72d8a7b7a3SRobert Watson 
73d8a7b7a3SRobert Watson #include <sys/mac_policy.h>
74d8a7b7a3SRobert Watson 
75d8a7b7a3SRobert Watson SYSCTL_DECL(_security_mac);
76d8a7b7a3SRobert Watson 
77d8a7b7a3SRobert Watson SYSCTL_NODE(_security_mac, OID_AUTO, none, CTLFLAG_RW, 0,
78d8a7b7a3SRobert Watson     "TrustedBSD mac_none policy controls");
79d8a7b7a3SRobert Watson 
80d8a7b7a3SRobert Watson static int	mac_none_enabled = 0;
81d8a7b7a3SRobert Watson SYSCTL_INT(_security_mac_none, OID_AUTO, enabled, CTLFLAG_RW,
82d8a7b7a3SRobert Watson     &mac_none_enabled, 0, "Enforce none policy");
83d8a7b7a3SRobert Watson 
84d8a7b7a3SRobert Watson /*
85d8a7b7a3SRobert Watson  * Policy module operations.
86d8a7b7a3SRobert Watson  */
87d8a7b7a3SRobert Watson static void
88d8a7b7a3SRobert Watson mac_none_destroy(struct mac_policy_conf *conf)
89d8a7b7a3SRobert Watson {
90d8a7b7a3SRobert Watson 
91d8a7b7a3SRobert Watson }
92d8a7b7a3SRobert Watson 
93d8a7b7a3SRobert Watson static void
94d8a7b7a3SRobert Watson mac_none_init(struct mac_policy_conf *conf)
95d8a7b7a3SRobert Watson {
96d8a7b7a3SRobert Watson 
97d8a7b7a3SRobert Watson }
98d8a7b7a3SRobert Watson 
998a97ecf6SRobert Watson static int
1008a97ecf6SRobert Watson mac_none_syscall(struct thread *td, int call, void *arg)
1018a97ecf6SRobert Watson {
1028a97ecf6SRobert Watson 
1038a97ecf6SRobert Watson 	return (0);
1048a97ecf6SRobert Watson }
1058a97ecf6SRobert Watson 
106d8a7b7a3SRobert Watson /*
107d8a7b7a3SRobert Watson  * Label operations.
108d8a7b7a3SRobert Watson  */
109d8a7b7a3SRobert Watson static void
11096adb909SRobert Watson mac_none_init_label(struct label *label)
111d8a7b7a3SRobert Watson {
112d8a7b7a3SRobert Watson 
113d8a7b7a3SRobert Watson }
114d8a7b7a3SRobert Watson 
115d8a7b7a3SRobert Watson static int
11696adb909SRobert Watson mac_none_init_label_waitcheck(struct label *label, int flag)
117d8a7b7a3SRobert Watson {
118d8a7b7a3SRobert Watson 
119d8a7b7a3SRobert Watson 	return (0);
120d8a7b7a3SRobert Watson }
121d8a7b7a3SRobert Watson 
122d8a7b7a3SRobert Watson static void
12396adb909SRobert Watson mac_none_destroy_label(struct label *label)
124d8a7b7a3SRobert Watson {
125d8a7b7a3SRobert Watson 
126d8a7b7a3SRobert Watson }
127d8a7b7a3SRobert Watson 
128d8a7b7a3SRobert Watson static int
12924e8d0d0SRobert Watson mac_none_externalize_label(struct label *label, char *element_name,
13024e8d0d0SRobert Watson     char *element_data, size_t size, size_t *len, int *claimed)
131d8a7b7a3SRobert Watson {
132d8a7b7a3SRobert Watson 
133d8a7b7a3SRobert Watson 	return (0);
134d8a7b7a3SRobert Watson }
135d8a7b7a3SRobert Watson 
136d8a7b7a3SRobert Watson static int
13724e8d0d0SRobert Watson mac_none_internalize_label(struct label *label, char *element_name,
13824e8d0d0SRobert Watson     char *element_data, int *claimed)
139d8a7b7a3SRobert Watson {
140d8a7b7a3SRobert Watson 
141d8a7b7a3SRobert Watson 	return (0);
142d8a7b7a3SRobert Watson }
143d8a7b7a3SRobert Watson 
144d8a7b7a3SRobert Watson /*
145d8a7b7a3SRobert Watson  * Labeling event operations: file system objects, and things that look
146d8a7b7a3SRobert Watson  * a lot like file system objects.
147d8a7b7a3SRobert Watson  */
148d8a7b7a3SRobert Watson static void
149763bbd2fSRobert Watson mac_none_associate_vnode_devfs(struct mount *mp, struct label *fslabel,
150763bbd2fSRobert Watson     struct devfs_dirent *de, struct label *delabel, struct vnode *vp,
151763bbd2fSRobert Watson     struct label *vlabel)
152763bbd2fSRobert Watson {
153763bbd2fSRobert Watson 
154763bbd2fSRobert Watson }
155763bbd2fSRobert Watson 
156763bbd2fSRobert Watson static int
157763bbd2fSRobert Watson mac_none_associate_vnode_extattr(struct mount *mp, struct label *fslabel,
158763bbd2fSRobert Watson     struct vnode *vp, struct label *vlabel)
159763bbd2fSRobert Watson {
160763bbd2fSRobert Watson 
161763bbd2fSRobert Watson 	return (0);
162763bbd2fSRobert Watson }
163763bbd2fSRobert Watson 
164763bbd2fSRobert Watson static void
165763bbd2fSRobert Watson mac_none_associate_vnode_singlelabel(struct mount *mp,
166763bbd2fSRobert Watson     struct label *fslabel, struct vnode *vp, struct label *vlabel)
167763bbd2fSRobert Watson {
168763bbd2fSRobert Watson 
169763bbd2fSRobert Watson }
170763bbd2fSRobert Watson 
171763bbd2fSRobert Watson static void
172d8a7b7a3SRobert Watson mac_none_create_devfs_device(dev_t dev, struct devfs_dirent *devfs_dirent,
173d8a7b7a3SRobert Watson     struct label *label)
174d8a7b7a3SRobert Watson {
175d8a7b7a3SRobert Watson 
176d8a7b7a3SRobert Watson }
177d8a7b7a3SRobert Watson 
178d8a7b7a3SRobert Watson static void
17957e2f493SRobert Watson mac_none_create_devfs_directory(char *dirname, int dirnamelen,
18057e2f493SRobert Watson     struct devfs_dirent *devfs_dirent, struct label *label)
181eea8ea31SRobert Watson {
182eea8ea31SRobert Watson 
183eea8ea31SRobert Watson }
184eea8ea31SRobert Watson 
185eea8ea31SRobert Watson static void
18657e2f493SRobert Watson mac_none_create_devfs_symlink(struct ucred *cred, struct devfs_dirent *dd,
18757e2f493SRobert Watson     struct label *ddlabel, struct devfs_dirent *de, struct label *delabel)
188d8a7b7a3SRobert Watson {
189d8a7b7a3SRobert Watson 
190d8a7b7a3SRobert Watson }
191d8a7b7a3SRobert Watson 
192d8a7b7a3SRobert Watson static void
193d8a7b7a3SRobert Watson mac_none_create_devfs_vnode(struct devfs_dirent *devfs_dirent,
194d8a7b7a3SRobert Watson     struct label *direntlabel, struct vnode *vp, struct label *vnodelabel)
195d8a7b7a3SRobert Watson {
196d8a7b7a3SRobert Watson 
197d8a7b7a3SRobert Watson }
198d8a7b7a3SRobert Watson 
199763bbd2fSRobert Watson static int
200763bbd2fSRobert Watson mac_none_create_vnode_extattr(struct ucred *cred, struct mount *mp,
201763bbd2fSRobert Watson     struct label *fslabel, struct vnode *dvp, struct label *dlabel,
202763bbd2fSRobert Watson     struct vnode *vp, struct label *vlabel, struct componentname *cnp)
203d8a7b7a3SRobert Watson {
204d8a7b7a3SRobert Watson 
205763bbd2fSRobert Watson 	return (0);
206d8a7b7a3SRobert Watson }
207d8a7b7a3SRobert Watson 
208d8a7b7a3SRobert Watson static void
209d8a7b7a3SRobert Watson mac_none_create_mount(struct ucred *cred, struct mount *mp,
210d8a7b7a3SRobert Watson     struct label *mntlabel, struct label *fslabel)
211d8a7b7a3SRobert Watson {
212d8a7b7a3SRobert Watson 
213d8a7b7a3SRobert Watson }
214d8a7b7a3SRobert Watson 
215d8a7b7a3SRobert Watson static void
216d8a7b7a3SRobert Watson mac_none_create_root_mount(struct ucred *cred, struct mount *mp,
217d8a7b7a3SRobert Watson     struct label *mntlabel, struct label *fslabel)
218d8a7b7a3SRobert Watson {
219d8a7b7a3SRobert Watson 
220d8a7b7a3SRobert Watson }
221d8a7b7a3SRobert Watson 
222d8a7b7a3SRobert Watson static void
223d8a7b7a3SRobert Watson mac_none_relabel_vnode(struct ucred *cred, struct vnode *vp,
224d8a7b7a3SRobert Watson     struct label *vnodelabel, struct label *label)
225d8a7b7a3SRobert Watson {
226d8a7b7a3SRobert Watson 
227d8a7b7a3SRobert Watson }
228d8a7b7a3SRobert Watson 
229d8a7b7a3SRobert Watson static int
230763bbd2fSRobert Watson mac_none_setlabel_vnode_extattr(struct ucred *cred, struct vnode *vp,
231763bbd2fSRobert Watson     struct label *vlabel, struct label *intlabel)
232d8a7b7a3SRobert Watson {
233d8a7b7a3SRobert Watson 
234d8a7b7a3SRobert Watson 	return (0);
235d8a7b7a3SRobert Watson }
236d8a7b7a3SRobert Watson 
237d8a7b7a3SRobert Watson static void
238763bbd2fSRobert Watson mac_none_update_devfsdirent(struct devfs_dirent *devfs_dirent,
239763bbd2fSRobert Watson     struct label *direntlabel, struct vnode *vp, struct label *vnodelabel)
240d8a7b7a3SRobert Watson {
241d8a7b7a3SRobert Watson 
242d8a7b7a3SRobert Watson }
243d8a7b7a3SRobert Watson 
244d8a7b7a3SRobert Watson /*
245d8a7b7a3SRobert Watson  * Labeling event operations: IPC object.
246d8a7b7a3SRobert Watson  */
247d8a7b7a3SRobert Watson static void
248d8a7b7a3SRobert Watson mac_none_create_mbuf_from_socket(struct socket *so, struct label *socketlabel,
249d8a7b7a3SRobert Watson     struct mbuf *m, struct label *mbuflabel)
250d8a7b7a3SRobert Watson {
251d8a7b7a3SRobert Watson 
252d8a7b7a3SRobert Watson }
253d8a7b7a3SRobert Watson 
254d8a7b7a3SRobert Watson static void
255d8a7b7a3SRobert Watson mac_none_create_socket(struct ucred *cred, struct socket *socket,
256d8a7b7a3SRobert Watson     struct label *socketlabel)
257d8a7b7a3SRobert Watson {
258d8a7b7a3SRobert Watson 
259d8a7b7a3SRobert Watson }
260d8a7b7a3SRobert Watson 
261d8a7b7a3SRobert Watson static void
262d8a7b7a3SRobert Watson mac_none_create_pipe(struct ucred *cred, struct pipe *pipe,
263d8a7b7a3SRobert Watson     struct label *pipelabel)
264d8a7b7a3SRobert Watson {
265d8a7b7a3SRobert Watson 
266d8a7b7a3SRobert Watson }
267d8a7b7a3SRobert Watson 
268d8a7b7a3SRobert Watson static void
269d8a7b7a3SRobert Watson mac_none_create_socket_from_socket(struct socket *oldsocket,
270d8a7b7a3SRobert Watson     struct label *oldsocketlabel, struct socket *newsocket,
271d8a7b7a3SRobert Watson     struct label *newsocketlabel)
272d8a7b7a3SRobert Watson {
273d8a7b7a3SRobert Watson 
274d8a7b7a3SRobert Watson }
275d8a7b7a3SRobert Watson 
276d8a7b7a3SRobert Watson static void
277d8a7b7a3SRobert Watson mac_none_relabel_socket(struct ucred *cred, struct socket *socket,
278d8a7b7a3SRobert Watson     struct label *socketlabel, struct label *newlabel)
279d8a7b7a3SRobert Watson {
280d8a7b7a3SRobert Watson 
281d8a7b7a3SRobert Watson }
282d8a7b7a3SRobert Watson 
283d8a7b7a3SRobert Watson static void
284d8a7b7a3SRobert Watson mac_none_relabel_pipe(struct ucred *cred, struct pipe *pipe,
285d8a7b7a3SRobert Watson     struct label *pipelabel, struct label *newlabel)
286d8a7b7a3SRobert Watson {
287d8a7b7a3SRobert Watson 
288d8a7b7a3SRobert Watson }
289d8a7b7a3SRobert Watson 
290d8a7b7a3SRobert Watson static void
291d8a7b7a3SRobert Watson mac_none_set_socket_peer_from_mbuf(struct mbuf *mbuf, struct label *mbuflabel,
292d8a7b7a3SRobert Watson     struct socket *socket, struct label *socketpeerlabel)
293d8a7b7a3SRobert Watson {
294d8a7b7a3SRobert Watson 
295d8a7b7a3SRobert Watson }
296d8a7b7a3SRobert Watson 
297d8a7b7a3SRobert Watson static void
298d8a7b7a3SRobert Watson mac_none_set_socket_peer_from_socket(struct socket *oldsocket,
299d8a7b7a3SRobert Watson     struct label *oldsocketlabel, struct socket *newsocket,
300d8a7b7a3SRobert Watson     struct label *newsocketpeerlabel)
301d8a7b7a3SRobert Watson {
302d8a7b7a3SRobert Watson 
303d8a7b7a3SRobert Watson }
304d8a7b7a3SRobert Watson 
305d8a7b7a3SRobert Watson /*
306d8a7b7a3SRobert Watson  * Labeling event operations: network objects.
307d8a7b7a3SRobert Watson  */
308d8a7b7a3SRobert Watson static void
309d8a7b7a3SRobert Watson mac_none_create_bpfdesc(struct ucred *cred, struct bpf_d *bpf_d,
310d8a7b7a3SRobert Watson     struct label *bpflabel)
311d8a7b7a3SRobert Watson {
312d8a7b7a3SRobert Watson 
313d8a7b7a3SRobert Watson }
314d8a7b7a3SRobert Watson 
315d8a7b7a3SRobert Watson static void
316d8a7b7a3SRobert Watson mac_none_create_datagram_from_ipq(struct ipq *ipq, struct label *ipqlabel,
317d8a7b7a3SRobert Watson     struct mbuf *datagram, struct label *datagramlabel)
318d8a7b7a3SRobert Watson {
319d8a7b7a3SRobert Watson 
320d8a7b7a3SRobert Watson }
321d8a7b7a3SRobert Watson 
322d8a7b7a3SRobert Watson static void
323d8a7b7a3SRobert Watson mac_none_create_fragment(struct mbuf *datagram, struct label *datagramlabel,
324d8a7b7a3SRobert Watson     struct mbuf *fragment, struct label *fragmentlabel)
325d8a7b7a3SRobert Watson {
326d8a7b7a3SRobert Watson 
327d8a7b7a3SRobert Watson }
328d8a7b7a3SRobert Watson 
329d8a7b7a3SRobert Watson static void
330d8a7b7a3SRobert Watson mac_none_create_ifnet(struct ifnet *ifnet, struct label *ifnetlabel)
331d8a7b7a3SRobert Watson {
332d8a7b7a3SRobert Watson 
333d8a7b7a3SRobert Watson }
334d8a7b7a3SRobert Watson 
335d8a7b7a3SRobert Watson static void
336d8a7b7a3SRobert Watson mac_none_create_ipq(struct mbuf *fragment, struct label *fragmentlabel,
337d8a7b7a3SRobert Watson     struct ipq *ipq, struct label *ipqlabel)
338d8a7b7a3SRobert Watson {
339d8a7b7a3SRobert Watson 
340d8a7b7a3SRobert Watson }
341d8a7b7a3SRobert Watson 
342d8a7b7a3SRobert Watson static void
343d8a7b7a3SRobert Watson mac_none_create_mbuf_from_mbuf(struct mbuf *oldmbuf,
344d8a7b7a3SRobert Watson     struct label *oldmbuflabel, struct mbuf *newmbuf,
345d8a7b7a3SRobert Watson     struct label *newmbuflabel)
346d8a7b7a3SRobert Watson {
347d8a7b7a3SRobert Watson 
348d8a7b7a3SRobert Watson }
349d8a7b7a3SRobert Watson 
350d8a7b7a3SRobert Watson static void
351d8a7b7a3SRobert Watson mac_none_create_mbuf_linklayer(struct ifnet *ifnet, struct label *ifnetlabel,
352d8a7b7a3SRobert Watson     struct mbuf *mbuf, struct label *mbuflabel)
353d8a7b7a3SRobert Watson {
354d8a7b7a3SRobert Watson 
355d8a7b7a3SRobert Watson }
356d8a7b7a3SRobert Watson 
357d8a7b7a3SRobert Watson static void
358d8a7b7a3SRobert Watson mac_none_create_mbuf_from_bpfdesc(struct bpf_d *bpf_d, struct label *bpflabel,
359d8a7b7a3SRobert Watson     struct mbuf *mbuf, struct label *mbuflabel)
360d8a7b7a3SRobert Watson {
361d8a7b7a3SRobert Watson 
362d8a7b7a3SRobert Watson }
363d8a7b7a3SRobert Watson 
364d8a7b7a3SRobert Watson static void
365d8a7b7a3SRobert Watson mac_none_create_mbuf_from_ifnet(struct ifnet *ifnet, struct label *ifnetlabel,
366d8a7b7a3SRobert Watson     struct mbuf *m, struct label *mbuflabel)
367d8a7b7a3SRobert Watson {
368d8a7b7a3SRobert Watson 
369d8a7b7a3SRobert Watson }
370d8a7b7a3SRobert Watson 
371d8a7b7a3SRobert Watson static void
372d8a7b7a3SRobert Watson mac_none_create_mbuf_multicast_encap(struct mbuf *oldmbuf,
373d8a7b7a3SRobert Watson     struct label *oldmbuflabel, struct ifnet *ifnet, struct label *ifnetlabel,
374d8a7b7a3SRobert Watson     struct mbuf *newmbuf, struct label *newmbuflabel)
375d8a7b7a3SRobert Watson {
376d8a7b7a3SRobert Watson 
377d8a7b7a3SRobert Watson }
378d8a7b7a3SRobert Watson 
379d8a7b7a3SRobert Watson static void
380d8a7b7a3SRobert Watson mac_none_create_mbuf_netlayer(struct mbuf *oldmbuf,
381d8a7b7a3SRobert Watson     struct label *oldmbuflabel, struct mbuf *newmbuf, struct label *newmbuflabel)
382d8a7b7a3SRobert Watson {
383d8a7b7a3SRobert Watson 
384d8a7b7a3SRobert Watson }
385d8a7b7a3SRobert Watson 
386d8a7b7a3SRobert Watson static int
387d8a7b7a3SRobert Watson mac_none_fragment_match(struct mbuf *fragment, struct label *fragmentlabel,
388d8a7b7a3SRobert Watson     struct ipq *ipq, struct label *ipqlabel)
389d8a7b7a3SRobert Watson {
390d8a7b7a3SRobert Watson 
391d8a7b7a3SRobert Watson 	return (1);
392d8a7b7a3SRobert Watson }
393d8a7b7a3SRobert Watson 
394d8a7b7a3SRobert Watson static void
395d8a7b7a3SRobert Watson mac_none_relabel_ifnet(struct ucred *cred, struct ifnet *ifnet,
396d8a7b7a3SRobert Watson     struct label *ifnetlabel, struct label *newlabel)
397d8a7b7a3SRobert Watson {
398d8a7b7a3SRobert Watson 
399d8a7b7a3SRobert Watson }
400d8a7b7a3SRobert Watson 
401d8a7b7a3SRobert Watson static void
402d8a7b7a3SRobert Watson mac_none_update_ipq(struct mbuf *fragment, struct label *fragmentlabel,
403d8a7b7a3SRobert Watson     struct ipq *ipq, struct label *ipqlabel)
404d8a7b7a3SRobert Watson {
405d8a7b7a3SRobert Watson 
406d8a7b7a3SRobert Watson }
407d8a7b7a3SRobert Watson 
408d8a7b7a3SRobert Watson /*
409d8a7b7a3SRobert Watson  * Labeling event operations: processes.
410d8a7b7a3SRobert Watson  */
411d8a7b7a3SRobert Watson static void
412d8a7b7a3SRobert Watson mac_none_create_cred(struct ucred *cred_parent, struct ucred *cred_child)
413d8a7b7a3SRobert Watson {
414d8a7b7a3SRobert Watson 
415d8a7b7a3SRobert Watson }
416d8a7b7a3SRobert Watson 
417d8a7b7a3SRobert Watson static void
418d8a7b7a3SRobert Watson mac_none_execve_transition(struct ucred *old, struct ucred *new,
419d8a7b7a3SRobert Watson     struct vnode *vp, struct label *vnodelabel)
420d8a7b7a3SRobert Watson {
421d8a7b7a3SRobert Watson 
422d8a7b7a3SRobert Watson }
423d8a7b7a3SRobert Watson 
424d8a7b7a3SRobert Watson static int
425d8a7b7a3SRobert Watson mac_none_execve_will_transition(struct ucred *old, struct vnode *vp,
426d8a7b7a3SRobert Watson     struct label *vnodelabel)
427d8a7b7a3SRobert Watson {
428d8a7b7a3SRobert Watson 
429d8a7b7a3SRobert Watson 	return (0);
430d8a7b7a3SRobert Watson }
431d8a7b7a3SRobert Watson 
432d8a7b7a3SRobert Watson static void
433d8a7b7a3SRobert Watson mac_none_create_proc0(struct ucred *cred)
434d8a7b7a3SRobert Watson {
435d8a7b7a3SRobert Watson 
436d8a7b7a3SRobert Watson }
437d8a7b7a3SRobert Watson 
438d8a7b7a3SRobert Watson static void
439d8a7b7a3SRobert Watson mac_none_create_proc1(struct ucred *cred)
440d8a7b7a3SRobert Watson {
441d8a7b7a3SRobert Watson 
442d8a7b7a3SRobert Watson }
443d8a7b7a3SRobert Watson 
444d8a7b7a3SRobert Watson static void
445d8a7b7a3SRobert Watson mac_none_relabel_cred(struct ucred *cred, struct label *newlabel)
446d8a7b7a3SRobert Watson {
447d8a7b7a3SRobert Watson 
448d8a7b7a3SRobert Watson }
449d8a7b7a3SRobert Watson 
450d8a7b7a3SRobert Watson /*
451d8a7b7a3SRobert Watson  * Access control checks.
452d8a7b7a3SRobert Watson  */
453d8a7b7a3SRobert Watson static int
454d8a7b7a3SRobert Watson mac_none_check_bpfdesc_receive(struct bpf_d *bpf_d, struct label *bpflabel,
455d8a7b7a3SRobert Watson     struct ifnet *ifnet, struct label *ifnet_label)
456d8a7b7a3SRobert Watson {
457d8a7b7a3SRobert Watson 
458d8a7b7a3SRobert Watson         return (0);
459d8a7b7a3SRobert Watson }
460d8a7b7a3SRobert Watson 
461d8a7b7a3SRobert Watson static int
462d8a7b7a3SRobert Watson mac_none_check_cred_relabel(struct ucred *cred, struct label *newlabel)
463d8a7b7a3SRobert Watson {
464d8a7b7a3SRobert Watson 
465d8a7b7a3SRobert Watson 	return (0);
466d8a7b7a3SRobert Watson }
467d8a7b7a3SRobert Watson 
468d8a7b7a3SRobert Watson static int
469d8a7b7a3SRobert Watson mac_none_check_cred_visible(struct ucred *u1, struct ucred *u2)
470d8a7b7a3SRobert Watson {
471d8a7b7a3SRobert Watson 
472d8a7b7a3SRobert Watson 	return (0);
473d8a7b7a3SRobert Watson }
474d8a7b7a3SRobert Watson 
475d8a7b7a3SRobert Watson static int
476d8a7b7a3SRobert Watson mac_none_check_ifnet_relabel(struct ucred *cred, struct ifnet *ifnet,
4771979061bSRobert Watson     struct label *ifnetlabel, struct label *newlabel)
478d8a7b7a3SRobert Watson {
479d8a7b7a3SRobert Watson 
480d8a7b7a3SRobert Watson 	return (0);
481d8a7b7a3SRobert Watson }
482d8a7b7a3SRobert Watson 
483d8a7b7a3SRobert Watson static int
484d8a7b7a3SRobert Watson mac_none_check_ifnet_transmit(struct ifnet *ifnet, struct label *ifnetlabel,
485d8a7b7a3SRobert Watson     struct mbuf *m, struct label *mbuflabel)
486d8a7b7a3SRobert Watson {
487d8a7b7a3SRobert Watson 
488d8a7b7a3SRobert Watson 	return (0);
489d8a7b7a3SRobert Watson }
490d8a7b7a3SRobert Watson 
491d8a7b7a3SRobert Watson static int
492d8a7b7a3SRobert Watson mac_none_check_mount_stat(struct ucred *cred, struct mount *mp,
493d8a7b7a3SRobert Watson     struct label *mntlabel)
494d8a7b7a3SRobert Watson {
495d8a7b7a3SRobert Watson 
496d8a7b7a3SRobert Watson 	return (0);
497d8a7b7a3SRobert Watson }
498d8a7b7a3SRobert Watson 
499d8a7b7a3SRobert Watson static int
500d8a7b7a3SRobert Watson mac_none_check_pipe_ioctl(struct ucred *cred, struct pipe *pipe,
501d8a7b7a3SRobert Watson     struct label *pipelabel, unsigned long cmd, void /* caddr_t */ *data)
502d8a7b7a3SRobert Watson {
503d8a7b7a3SRobert Watson 
504d8a7b7a3SRobert Watson 	return (0);
505d8a7b7a3SRobert Watson }
506d8a7b7a3SRobert Watson 
507d8a7b7a3SRobert Watson static int
508c024c3eeSRobert Watson mac_none_check_pipe_poll(struct ucred *cred, struct pipe *pipe,
509c024c3eeSRobert Watson     struct label *pipelabel)
510c024c3eeSRobert Watson {
511c024c3eeSRobert Watson 
512c024c3eeSRobert Watson 	return (0);
513c024c3eeSRobert Watson }
514c024c3eeSRobert Watson 
515c024c3eeSRobert Watson static int
516c024c3eeSRobert Watson mac_none_check_pipe_read(struct ucred *cred, struct pipe *pipe,
517c024c3eeSRobert Watson     struct label *pipelabel)
518d8a7b7a3SRobert Watson {
519d8a7b7a3SRobert Watson 
520d8a7b7a3SRobert Watson 	return (0);
521d8a7b7a3SRobert Watson }
522d8a7b7a3SRobert Watson 
523d8a7b7a3SRobert Watson static int
524d8a7b7a3SRobert Watson mac_none_check_pipe_relabel(struct ucred *cred, struct pipe *pipe,
525d8a7b7a3SRobert Watson     struct label *pipelabel, struct label *newlabel)
526d8a7b7a3SRobert Watson {
527d8a7b7a3SRobert Watson 
528d8a7b7a3SRobert Watson 	return (0);
529d8a7b7a3SRobert Watson }
530d8a7b7a3SRobert Watson 
531d8a7b7a3SRobert Watson static int
532c024c3eeSRobert Watson mac_none_check_pipe_stat(struct ucred *cred, struct pipe *pipe,
533c024c3eeSRobert Watson     struct label *pipelabel)
534c024c3eeSRobert Watson {
535c024c3eeSRobert Watson 
536c024c3eeSRobert Watson 	return (0);
537c024c3eeSRobert Watson }
538c024c3eeSRobert Watson 
539c024c3eeSRobert Watson static int
540c024c3eeSRobert Watson mac_none_check_pipe_write(struct ucred *cred, struct pipe *pipe,
541c024c3eeSRobert Watson     struct label *pipelabel)
542c024c3eeSRobert Watson {
543c024c3eeSRobert Watson 
544c024c3eeSRobert Watson 	return (0);
545c024c3eeSRobert Watson }
546c024c3eeSRobert Watson 
547c024c3eeSRobert Watson static int
548d8a7b7a3SRobert Watson mac_none_check_proc_debug(struct ucred *cred, struct proc *proc)
549d8a7b7a3SRobert Watson {
550d8a7b7a3SRobert Watson 
551d8a7b7a3SRobert Watson 	return (0);
552d8a7b7a3SRobert Watson }
553d8a7b7a3SRobert Watson 
554d8a7b7a3SRobert Watson static int
555d8a7b7a3SRobert Watson mac_none_check_proc_sched(struct ucred *cred, struct proc *proc)
556d8a7b7a3SRobert Watson {
557d8a7b7a3SRobert Watson 
558d8a7b7a3SRobert Watson 	return (0);
559d8a7b7a3SRobert Watson }
560d8a7b7a3SRobert Watson 
561d8a7b7a3SRobert Watson static int
562d8a7b7a3SRobert Watson mac_none_check_proc_signal(struct ucred *cred, struct proc *proc, int signum)
563d8a7b7a3SRobert Watson {
564d8a7b7a3SRobert Watson 
565d8a7b7a3SRobert Watson 	return (0);
566d8a7b7a3SRobert Watson }
567d8a7b7a3SRobert Watson 
568d8a7b7a3SRobert Watson static int
569d8a7b7a3SRobert Watson mac_none_check_socket_bind(struct ucred *cred, struct socket *socket,
570d8a7b7a3SRobert Watson     struct label *socketlabel, struct sockaddr *sockaddr)
571d8a7b7a3SRobert Watson {
572d8a7b7a3SRobert Watson 
573d8a7b7a3SRobert Watson 	return (0);
574d8a7b7a3SRobert Watson }
575d8a7b7a3SRobert Watson 
576d8a7b7a3SRobert Watson static int
577d8a7b7a3SRobert Watson mac_none_check_socket_connect(struct ucred *cred, struct socket *socket,
578d8a7b7a3SRobert Watson     struct label *socketlabel, struct sockaddr *sockaddr)
579d8a7b7a3SRobert Watson {
580d8a7b7a3SRobert Watson 
581d8a7b7a3SRobert Watson 	return (0);
582d8a7b7a3SRobert Watson }
583d8a7b7a3SRobert Watson 
584d8a7b7a3SRobert Watson static int
585fb95b5d3SRobert Watson mac_none_check_socket_deliver(struct socket *so, struct label *socketlabel,
586fb95b5d3SRobert Watson     struct mbuf *m, struct label *mbuflabel)
587d8a7b7a3SRobert Watson {
588d8a7b7a3SRobert Watson 
589d8a7b7a3SRobert Watson 	return (0);
590d8a7b7a3SRobert Watson }
591d8a7b7a3SRobert Watson 
592d8a7b7a3SRobert Watson static int
59357e2f493SRobert Watson mac_none_check_socket_listen(struct ucred *cred, struct socket *so,
594fb95b5d3SRobert Watson     struct label *socketlabel)
595d8a7b7a3SRobert Watson {
596d8a7b7a3SRobert Watson 
597d8a7b7a3SRobert Watson 	return (0);
598d8a7b7a3SRobert Watson }
599d8a7b7a3SRobert Watson 
600d8a7b7a3SRobert Watson static int
601d8a7b7a3SRobert Watson mac_none_check_socket_relabel(struct ucred *cred, struct socket *socket,
602d8a7b7a3SRobert Watson     struct label *socketlabel, struct label *newlabel)
603d8a7b7a3SRobert Watson {
604d8a7b7a3SRobert Watson 
605d8a7b7a3SRobert Watson 	return (0);
606d8a7b7a3SRobert Watson }
607d8a7b7a3SRobert Watson 
608d8a7b7a3SRobert Watson static int
609d8a7b7a3SRobert Watson mac_none_check_socket_visible(struct ucred *cred, struct socket *socket,
610d8a7b7a3SRobert Watson    struct label *socketlabel)
611d8a7b7a3SRobert Watson {
612d8a7b7a3SRobert Watson 
613d8a7b7a3SRobert Watson 	return (0);
614d8a7b7a3SRobert Watson }
615d8a7b7a3SRobert Watson 
616d8a7b7a3SRobert Watson static int
617927f6069SRobert Watson mac_none_check_system_reboot(struct ucred *cred, int how)
618927f6069SRobert Watson {
619927f6069SRobert Watson 
620927f6069SRobert Watson 	return (0);
621927f6069SRobert Watson }
622927f6069SRobert Watson 
623927f6069SRobert Watson static int
624927f6069SRobert Watson mac_none_check_system_swapon(struct ucred *cred, struct vnode *vp,
625927f6069SRobert Watson     struct label *label)
626927f6069SRobert Watson {
627927f6069SRobert Watson 
628927f6069SRobert Watson 	return (0);
629927f6069SRobert Watson }
630927f6069SRobert Watson 
631927f6069SRobert Watson static int
632927f6069SRobert Watson mac_none_check_system_sysctl(struct ucred *cred, int *name, u_int namelen,
633927f6069SRobert Watson     void *old, size_t *oldlenp, int inkernel, void *new, size_t newlen)
634927f6069SRobert Watson {
635927f6069SRobert Watson 
636927f6069SRobert Watson 	return (0);
637927f6069SRobert Watson }
638927f6069SRobert Watson 
639927f6069SRobert Watson static int
640d8a7b7a3SRobert Watson mac_none_check_vnode_access(struct ucred *cred, struct vnode *vp,
641b914de36SRobert Watson     struct label *label, int acc_mode)
642d8a7b7a3SRobert Watson {
643d8a7b7a3SRobert Watson 
644d8a7b7a3SRobert Watson 	return (0);
645d8a7b7a3SRobert Watson }
646d8a7b7a3SRobert Watson 
647d8a7b7a3SRobert Watson static int
648d8a7b7a3SRobert Watson mac_none_check_vnode_chdir(struct ucred *cred, struct vnode *dvp,
649d8a7b7a3SRobert Watson     struct label *dlabel)
650d8a7b7a3SRobert Watson {
651d8a7b7a3SRobert Watson 
652d8a7b7a3SRobert Watson 	return (0);
653d8a7b7a3SRobert Watson }
654d8a7b7a3SRobert Watson 
655d8a7b7a3SRobert Watson static int
656d8a7b7a3SRobert Watson mac_none_check_vnode_chroot(struct ucred *cred, struct vnode *dvp,
657d8a7b7a3SRobert Watson     struct label *dlabel)
658d8a7b7a3SRobert Watson {
659d8a7b7a3SRobert Watson 
660d8a7b7a3SRobert Watson 	return (0);
661d8a7b7a3SRobert Watson }
662d8a7b7a3SRobert Watson 
663d8a7b7a3SRobert Watson static int
664d8a7b7a3SRobert Watson mac_none_check_vnode_create(struct ucred *cred, struct vnode *dvp,
665d8a7b7a3SRobert Watson     struct label *dlabel, struct componentname *cnp, struct vattr *vap)
666d8a7b7a3SRobert Watson {
667d8a7b7a3SRobert Watson 
668d8a7b7a3SRobert Watson 	return (0);
669d8a7b7a3SRobert Watson }
670d8a7b7a3SRobert Watson 
671d8a7b7a3SRobert Watson static int
672d8a7b7a3SRobert Watson mac_none_check_vnode_delete(struct ucred *cred, struct vnode *dvp,
673d8a7b7a3SRobert Watson     struct label *dlabel, struct vnode *vp, struct label *label,
674d8a7b7a3SRobert Watson     struct componentname *cnp)
675d8a7b7a3SRobert Watson {
676d8a7b7a3SRobert Watson 
677d8a7b7a3SRobert Watson 	return (0);
678d8a7b7a3SRobert Watson }
679d8a7b7a3SRobert Watson 
680d8a7b7a3SRobert Watson static int
681d8a7b7a3SRobert Watson mac_none_check_vnode_deleteacl(struct ucred *cred, struct vnode *vp,
682d8a7b7a3SRobert Watson     struct label *label, acl_type_t type)
683d8a7b7a3SRobert Watson {
684d8a7b7a3SRobert Watson 
685d8a7b7a3SRobert Watson 	return (0);
686d8a7b7a3SRobert Watson }
687d8a7b7a3SRobert Watson 
688d8a7b7a3SRobert Watson static int
689d8a7b7a3SRobert Watson mac_none_check_vnode_exec(struct ucred *cred, struct vnode *vp,
690d8a7b7a3SRobert Watson     struct label *label)
691d8a7b7a3SRobert Watson {
692d8a7b7a3SRobert Watson 
693d8a7b7a3SRobert Watson 	return (0);
694d8a7b7a3SRobert Watson }
695d8a7b7a3SRobert Watson 
696d8a7b7a3SRobert Watson static int
697d8a7b7a3SRobert Watson mac_none_check_vnode_getacl(struct ucred *cred, struct vnode *vp,
698d8a7b7a3SRobert Watson     struct label *label, acl_type_t type)
699d8a7b7a3SRobert Watson {
700d8a7b7a3SRobert Watson 
701d8a7b7a3SRobert Watson 	return (0);
702d8a7b7a3SRobert Watson }
703d8a7b7a3SRobert Watson 
704d8a7b7a3SRobert Watson static int
705d8a7b7a3SRobert Watson mac_none_check_vnode_getextattr(struct ucred *cred, struct vnode *vp,
706d8a7b7a3SRobert Watson     struct label *label, int attrnamespace, const char *name, struct uio *uio)
707d8a7b7a3SRobert Watson {
708d8a7b7a3SRobert Watson 
709d8a7b7a3SRobert Watson 	return (0);
710d8a7b7a3SRobert Watson }
711d8a7b7a3SRobert Watson 
712d8a7b7a3SRobert Watson static int
713c27b50f5SRobert Watson mac_none_check_vnode_link(struct ucred *cred, struct vnode *dvp,
714c27b50f5SRobert Watson     struct label *dlabel, struct vnode *vp, struct label *label,
715c27b50f5SRobert Watson     struct componentname *cnp)
716c27b50f5SRobert Watson {
717c27b50f5SRobert Watson 
718c27b50f5SRobert Watson 	return (0);
719c27b50f5SRobert Watson }
720c27b50f5SRobert Watson 
721c27b50f5SRobert Watson static int
722d8a7b7a3SRobert Watson mac_none_check_vnode_lookup(struct ucred *cred, struct vnode *dvp,
723d8a7b7a3SRobert Watson     struct label *dlabel, struct componentname *cnp)
724d8a7b7a3SRobert Watson {
725d8a7b7a3SRobert Watson 
726d8a7b7a3SRobert Watson 	return (0);
727d8a7b7a3SRobert Watson }
728d8a7b7a3SRobert Watson 
729d8a7b7a3SRobert Watson static int
730e183f80eSRobert Watson mac_none_check_vnode_mmap(struct ucred *cred, struct vnode *vp,
731e183f80eSRobert Watson     struct label *label, int prot)
732e183f80eSRobert Watson {
733e183f80eSRobert Watson 
734e183f80eSRobert Watson 	return (0);
735e183f80eSRobert Watson }
736e183f80eSRobert Watson 
737e183f80eSRobert Watson static int
738e183f80eSRobert Watson mac_none_check_vnode_mprotect(struct ucred *cred, struct vnode *vp,
739e183f80eSRobert Watson     struct label *label, int prot)
740e183f80eSRobert Watson {
741e183f80eSRobert Watson 
742e183f80eSRobert Watson 	return (0);
743e183f80eSRobert Watson }
744e183f80eSRobert Watson 
745e183f80eSRobert Watson static int
746d8a7b7a3SRobert Watson mac_none_check_vnode_open(struct ucred *cred, struct vnode *vp,
747b914de36SRobert Watson     struct label *filelabel, int acc_mode)
748d8a7b7a3SRobert Watson {
749d8a7b7a3SRobert Watson 
750d8a7b7a3SRobert Watson 	return (0);
751d8a7b7a3SRobert Watson }
752d8a7b7a3SRobert Watson 
753d8a7b7a3SRobert Watson static int
754177142e4SRobert Watson mac_none_check_vnode_poll(struct ucred *active_cred, struct ucred *file_cred,
755177142e4SRobert Watson     struct vnode *vp, struct label *label)
7567f724f8bSRobert Watson {
7577f724f8bSRobert Watson 
7587f724f8bSRobert Watson 	return (0);
7597f724f8bSRobert Watson }
7607f724f8bSRobert Watson 
7617f724f8bSRobert Watson static int
762177142e4SRobert Watson mac_none_check_vnode_read(struct ucred *active_cred, struct ucred *file_cred,
763177142e4SRobert Watson     struct vnode *vp, struct label *label)
7647f724f8bSRobert Watson {
7657f724f8bSRobert Watson 
7667f724f8bSRobert Watson 	return (0);
7677f724f8bSRobert Watson }
7687f724f8bSRobert Watson 
7697f724f8bSRobert Watson static int
770d8a7b7a3SRobert Watson mac_none_check_vnode_readdir(struct ucred *cred, struct vnode *vp,
771d8a7b7a3SRobert Watson     struct label *dlabel)
772d8a7b7a3SRobert Watson {
773d8a7b7a3SRobert Watson 
774d8a7b7a3SRobert Watson 	return (0);
775d8a7b7a3SRobert Watson }
776d8a7b7a3SRobert Watson 
777d8a7b7a3SRobert Watson static int
778d8a7b7a3SRobert Watson mac_none_check_vnode_readlink(struct ucred *cred, struct vnode *vp,
779d8a7b7a3SRobert Watson     struct label *vnodelabel)
780d8a7b7a3SRobert Watson {
781d8a7b7a3SRobert Watson 
782d8a7b7a3SRobert Watson 	return (0);
783d8a7b7a3SRobert Watson }
784d8a7b7a3SRobert Watson 
785d8a7b7a3SRobert Watson static int
786d8a7b7a3SRobert Watson mac_none_check_vnode_relabel(struct ucred *cred, struct vnode *vp,
787d8a7b7a3SRobert Watson     struct label *vnodelabel, struct label *newlabel)
788d8a7b7a3SRobert Watson {
789d8a7b7a3SRobert Watson 
790d8a7b7a3SRobert Watson 	return (0);
791d8a7b7a3SRobert Watson }
792d8a7b7a3SRobert Watson 
793d8a7b7a3SRobert Watson static int
794d8a7b7a3SRobert Watson mac_none_check_vnode_rename_from(struct ucred *cred, struct vnode *dvp,
795d8a7b7a3SRobert Watson     struct label *dlabel, struct vnode *vp, struct label *label,
796d8a7b7a3SRobert Watson     struct componentname *cnp)
797d8a7b7a3SRobert Watson {
798d8a7b7a3SRobert Watson 
799d8a7b7a3SRobert Watson 	return (0);
800d8a7b7a3SRobert Watson }
801d8a7b7a3SRobert Watson 
802d8a7b7a3SRobert Watson static int
803d8a7b7a3SRobert Watson mac_none_check_vnode_rename_to(struct ucred *cred, struct vnode *dvp,
804d8a7b7a3SRobert Watson     struct label *dlabel, struct vnode *vp, struct label *label, int samedir,
805d8a7b7a3SRobert Watson     struct componentname *cnp)
806d8a7b7a3SRobert Watson {
807d8a7b7a3SRobert Watson 
808d8a7b7a3SRobert Watson 	return (0);
809d8a7b7a3SRobert Watson }
810d8a7b7a3SRobert Watson 
811d8a7b7a3SRobert Watson static int
812d8a7b7a3SRobert Watson mac_none_check_vnode_revoke(struct ucred *cred, struct vnode *vp,
813d8a7b7a3SRobert Watson     struct label *label)
814d8a7b7a3SRobert Watson {
815d8a7b7a3SRobert Watson 
816d8a7b7a3SRobert Watson 	return (0);
817d8a7b7a3SRobert Watson }
818d8a7b7a3SRobert Watson 
819d8a7b7a3SRobert Watson static int
820d8a7b7a3SRobert Watson mac_none_check_vnode_setacl(struct ucred *cred, struct vnode *vp,
821d8a7b7a3SRobert Watson     struct label *label, acl_type_t type, struct acl *acl)
822d8a7b7a3SRobert Watson {
823d8a7b7a3SRobert Watson 
824d8a7b7a3SRobert Watson 	return (0);
825d8a7b7a3SRobert Watson }
826d8a7b7a3SRobert Watson 
827d8a7b7a3SRobert Watson static int
828d8a7b7a3SRobert Watson mac_none_check_vnode_setextattr(struct ucred *cred, struct vnode *vp,
829d8a7b7a3SRobert Watson     struct label *label, int attrnamespace, const char *name, struct uio *uio)
830d8a7b7a3SRobert Watson {
831d8a7b7a3SRobert Watson 
832d8a7b7a3SRobert Watson 	return (0);
833d8a7b7a3SRobert Watson }
834d8a7b7a3SRobert Watson 
835d8a7b7a3SRobert Watson static int
836d8a7b7a3SRobert Watson mac_none_check_vnode_setflags(struct ucred *cred, struct vnode *vp,
837d8a7b7a3SRobert Watson     struct label *label, u_long flags)
838d8a7b7a3SRobert Watson {
839d8a7b7a3SRobert Watson 
840d8a7b7a3SRobert Watson 	return (0);
841d8a7b7a3SRobert Watson }
842d8a7b7a3SRobert Watson 
843d8a7b7a3SRobert Watson static int
844d8a7b7a3SRobert Watson mac_none_check_vnode_setmode(struct ucred *cred, struct vnode *vp,
845d8a7b7a3SRobert Watson     struct label *label, mode_t mode)
846d8a7b7a3SRobert Watson {
847d8a7b7a3SRobert Watson 
848d8a7b7a3SRobert Watson 	return (0);
849d8a7b7a3SRobert Watson }
850d8a7b7a3SRobert Watson 
851d8a7b7a3SRobert Watson static int
852d8a7b7a3SRobert Watson mac_none_check_vnode_setowner(struct ucred *cred, struct vnode *vp,
853d8a7b7a3SRobert Watson     struct label *label, uid_t uid, gid_t gid)
854d8a7b7a3SRobert Watson {
855d8a7b7a3SRobert Watson 
856d8a7b7a3SRobert Watson 	return (0);
857d8a7b7a3SRobert Watson }
858d8a7b7a3SRobert Watson 
859d8a7b7a3SRobert Watson static int
860d8a7b7a3SRobert Watson mac_none_check_vnode_setutimes(struct ucred *cred, struct vnode *vp,
861d8a7b7a3SRobert Watson     struct label *label, struct timespec atime, struct timespec mtime)
862d8a7b7a3SRobert Watson {
863d8a7b7a3SRobert Watson 
864d8a7b7a3SRobert Watson 	return (0);
865d8a7b7a3SRobert Watson }
866d8a7b7a3SRobert Watson 
867d8a7b7a3SRobert Watson static int
868177142e4SRobert Watson mac_none_check_vnode_stat(struct ucred *active_cred, struct ucred *file_cred,
869177142e4SRobert Watson     struct vnode *vp, struct label *label)
870d8a7b7a3SRobert Watson {
871d8a7b7a3SRobert Watson 
872d8a7b7a3SRobert Watson 	return (0);
873d8a7b7a3SRobert Watson }
874d8a7b7a3SRobert Watson 
8757f724f8bSRobert Watson static int
876177142e4SRobert Watson mac_none_check_vnode_write(struct ucred *active_cred,
877177142e4SRobert Watson     struct ucred *file_cred, struct vnode *vp, struct label *label)
8787f724f8bSRobert Watson {
8797f724f8bSRobert Watson 
8807f724f8bSRobert Watson 	return (0);
8817f724f8bSRobert Watson }
8827f724f8bSRobert Watson 
8835c8dd342SRobert Watson static struct mac_policy_ops mac_none_ops =
884d8a7b7a3SRobert Watson {
8855c8dd342SRobert Watson 	.mpo_destroy = mac_none_destroy,
8865c8dd342SRobert Watson 	.mpo_init = mac_none_init,
8875c8dd342SRobert Watson 	.mpo_syscall = mac_none_syscall,
8885c8dd342SRobert Watson 	.mpo_init_bpfdesc_label = mac_none_init_label,
8895c8dd342SRobert Watson 	.mpo_init_cred_label = mac_none_init_label,
8905c8dd342SRobert Watson 	.mpo_init_devfsdirent_label = mac_none_init_label,
8915c8dd342SRobert Watson 	.mpo_init_ifnet_label = mac_none_init_label,
8925c8dd342SRobert Watson 	.mpo_init_ipq_label = mac_none_init_label,
8935c8dd342SRobert Watson 	.mpo_init_mbuf_label = mac_none_init_label_waitcheck,
8945c8dd342SRobert Watson 	.mpo_init_mount_label = mac_none_init_label,
8955c8dd342SRobert Watson 	.mpo_init_mount_fs_label = mac_none_init_label,
8965c8dd342SRobert Watson 	.mpo_init_pipe_label = mac_none_init_label,
8975c8dd342SRobert Watson 	.mpo_init_socket_label = mac_none_init_label_waitcheck,
8985c8dd342SRobert Watson 	.mpo_init_socket_peer_label = mac_none_init_label_waitcheck,
8995c8dd342SRobert Watson 	.mpo_init_vnode_label = mac_none_init_label,
9005c8dd342SRobert Watson 	.mpo_destroy_bpfdesc_label = mac_none_destroy_label,
9015c8dd342SRobert Watson 	.mpo_destroy_cred_label = mac_none_destroy_label,
9025c8dd342SRobert Watson 	.mpo_destroy_devfsdirent_label = mac_none_destroy_label,
9035c8dd342SRobert Watson 	.mpo_destroy_ifnet_label = mac_none_destroy_label,
9045c8dd342SRobert Watson 	.mpo_destroy_ipq_label = mac_none_destroy_label,
9055c8dd342SRobert Watson 	.mpo_destroy_mbuf_label = mac_none_destroy_label,
9065c8dd342SRobert Watson 	.mpo_destroy_mount_label = mac_none_destroy_label,
9075c8dd342SRobert Watson 	.mpo_destroy_mount_fs_label = mac_none_destroy_label,
9085c8dd342SRobert Watson 	.mpo_destroy_pipe_label = mac_none_destroy_label,
9095c8dd342SRobert Watson 	.mpo_destroy_socket_label = mac_none_destroy_label,
9105c8dd342SRobert Watson 	.mpo_destroy_socket_peer_label = mac_none_destroy_label,
9115c8dd342SRobert Watson 	.mpo_destroy_vnode_label = mac_none_destroy_label,
9125c8dd342SRobert Watson 	.mpo_externalize_cred_label = mac_none_externalize_label,
9135c8dd342SRobert Watson 	.mpo_externalize_ifnet_label = mac_none_externalize_label,
9145c8dd342SRobert Watson 	.mpo_externalize_pipe_label = mac_none_externalize_label,
9155c8dd342SRobert Watson 	.mpo_externalize_socket_label = mac_none_externalize_label,
9165c8dd342SRobert Watson 	.mpo_externalize_socket_peer_label = mac_none_externalize_label,
9175c8dd342SRobert Watson 	.mpo_externalize_vnode_label = mac_none_externalize_label,
9185c8dd342SRobert Watson 	.mpo_internalize_cred_label = mac_none_internalize_label,
9195c8dd342SRobert Watson 	.mpo_internalize_ifnet_label = mac_none_internalize_label,
9205c8dd342SRobert Watson 	.mpo_internalize_pipe_label = mac_none_internalize_label,
9215c8dd342SRobert Watson 	.mpo_internalize_socket_label = mac_none_internalize_label,
9225c8dd342SRobert Watson 	.mpo_internalize_vnode_label = mac_none_internalize_label,
9235c8dd342SRobert Watson 	.mpo_associate_vnode_devfs = mac_none_associate_vnode_devfs,
9245c8dd342SRobert Watson 	.mpo_associate_vnode_extattr = mac_none_associate_vnode_extattr,
9255c8dd342SRobert Watson 	.mpo_associate_vnode_singlelabel = mac_none_associate_vnode_singlelabel,
9265c8dd342SRobert Watson 	.mpo_create_devfs_device = mac_none_create_devfs_device,
9275c8dd342SRobert Watson 	.mpo_create_devfs_directory = mac_none_create_devfs_directory,
9285c8dd342SRobert Watson 	.mpo_create_devfs_symlink = mac_none_create_devfs_symlink,
9295c8dd342SRobert Watson 	.mpo_create_devfs_vnode = mac_none_create_devfs_vnode,
9305c8dd342SRobert Watson 	.mpo_create_vnode_extattr = mac_none_create_vnode_extattr,
9315c8dd342SRobert Watson 	.mpo_create_mount = mac_none_create_mount,
9325c8dd342SRobert Watson 	.mpo_create_root_mount = mac_none_create_root_mount,
9335c8dd342SRobert Watson 	.mpo_relabel_vnode = mac_none_relabel_vnode,
9345c8dd342SRobert Watson 	.mpo_setlabel_vnode_extattr = mac_none_setlabel_vnode_extattr,
9355c8dd342SRobert Watson 	.mpo_update_devfsdirent = mac_none_update_devfsdirent,
9365c8dd342SRobert Watson 	.mpo_create_mbuf_from_socket = mac_none_create_mbuf_from_socket,
9375c8dd342SRobert Watson 	.mpo_create_pipe = mac_none_create_pipe,
9385c8dd342SRobert Watson 	.mpo_create_socket = mac_none_create_socket,
9395c8dd342SRobert Watson 	.mpo_create_socket_from_socket = mac_none_create_socket_from_socket,
9405c8dd342SRobert Watson 	.mpo_relabel_pipe = mac_none_relabel_pipe,
9415c8dd342SRobert Watson 	.mpo_relabel_socket = mac_none_relabel_socket,
9425c8dd342SRobert Watson 	.mpo_set_socket_peer_from_mbuf = mac_none_set_socket_peer_from_mbuf,
9435c8dd342SRobert Watson 	.mpo_set_socket_peer_from_socket = mac_none_set_socket_peer_from_socket,
9445c8dd342SRobert Watson 	.mpo_create_bpfdesc = mac_none_create_bpfdesc,
9455c8dd342SRobert Watson 	.mpo_create_ifnet = mac_none_create_ifnet,
9465c8dd342SRobert Watson 	.mpo_create_ipq = mac_none_create_ipq,
9475c8dd342SRobert Watson 	.mpo_create_datagram_from_ipq = mac_none_create_datagram_from_ipq,
9485c8dd342SRobert Watson 	.mpo_create_fragment = mac_none_create_fragment,
9495c8dd342SRobert Watson 	.mpo_create_ipq = mac_none_create_ipq,
9505c8dd342SRobert Watson 	.mpo_create_mbuf_from_mbuf = mac_none_create_mbuf_from_mbuf,
9515c8dd342SRobert Watson 	.mpo_create_mbuf_linklayer = mac_none_create_mbuf_linklayer,
9525c8dd342SRobert Watson 	.mpo_create_mbuf_from_bpfdesc = mac_none_create_mbuf_from_bpfdesc,
9535c8dd342SRobert Watson 	.mpo_create_mbuf_from_ifnet = mac_none_create_mbuf_from_ifnet,
9545c8dd342SRobert Watson 	.mpo_create_mbuf_multicast_encap = mac_none_create_mbuf_multicast_encap,
9555c8dd342SRobert Watson 	.mpo_create_mbuf_netlayer = mac_none_create_mbuf_netlayer,
9565c8dd342SRobert Watson 	.mpo_fragment_match = mac_none_fragment_match,
9575c8dd342SRobert Watson 	.mpo_relabel_ifnet = mac_none_relabel_ifnet,
9585c8dd342SRobert Watson 	.mpo_update_ipq = mac_none_update_ipq,
9595c8dd342SRobert Watson 	.mpo_create_cred = mac_none_create_cred,
9605c8dd342SRobert Watson 	.mpo_execve_transition = mac_none_execve_transition,
9615c8dd342SRobert Watson 	.mpo_execve_will_transition = mac_none_execve_will_transition,
9625c8dd342SRobert Watson 	.mpo_create_proc0 = mac_none_create_proc0,
9635c8dd342SRobert Watson 	.mpo_create_proc1 = mac_none_create_proc1,
9645c8dd342SRobert Watson 	.mpo_relabel_cred = mac_none_relabel_cred,
9655c8dd342SRobert Watson 	.mpo_check_bpfdesc_receive = mac_none_check_bpfdesc_receive,
9665c8dd342SRobert Watson 	.mpo_check_cred_relabel = mac_none_check_cred_relabel,
9675c8dd342SRobert Watson 	.mpo_check_cred_visible = mac_none_check_cred_visible,
9685c8dd342SRobert Watson 	.mpo_check_ifnet_relabel = mac_none_check_ifnet_relabel,
9695c8dd342SRobert Watson 	.mpo_check_ifnet_transmit = mac_none_check_ifnet_transmit,
9705c8dd342SRobert Watson 	.mpo_check_mount_stat = mac_none_check_mount_stat,
9715c8dd342SRobert Watson 	.mpo_check_pipe_ioctl = mac_none_check_pipe_ioctl,
9725c8dd342SRobert Watson 	.mpo_check_pipe_poll = mac_none_check_pipe_poll,
9735c8dd342SRobert Watson 	.mpo_check_pipe_read = mac_none_check_pipe_read,
9745c8dd342SRobert Watson 	.mpo_check_pipe_relabel = mac_none_check_pipe_relabel,
9755c8dd342SRobert Watson 	.mpo_check_pipe_stat = mac_none_check_pipe_stat,
9765c8dd342SRobert Watson 	.mpo_check_pipe_write = mac_none_check_pipe_write,
9775c8dd342SRobert Watson 	.mpo_check_proc_debug = mac_none_check_proc_debug,
9785c8dd342SRobert Watson 	.mpo_check_proc_sched = mac_none_check_proc_sched,
9795c8dd342SRobert Watson 	.mpo_check_proc_signal = mac_none_check_proc_signal,
9805c8dd342SRobert Watson 	.mpo_check_socket_bind = mac_none_check_socket_bind,
9815c8dd342SRobert Watson 	.mpo_check_socket_connect = mac_none_check_socket_connect,
9825c8dd342SRobert Watson 	.mpo_check_socket_deliver = mac_none_check_socket_deliver,
9835c8dd342SRobert Watson 	.mpo_check_socket_listen = mac_none_check_socket_listen,
9845c8dd342SRobert Watson 	.mpo_check_socket_relabel = mac_none_check_socket_relabel,
9855c8dd342SRobert Watson 	.mpo_check_socket_visible = mac_none_check_socket_visible,
9865c8dd342SRobert Watson 	.mpo_check_system_reboot = mac_none_check_system_reboot,
9875c8dd342SRobert Watson 	.mpo_check_system_swapon = mac_none_check_system_swapon,
9885c8dd342SRobert Watson 	.mpo_check_system_sysctl = mac_none_check_system_sysctl,
9895c8dd342SRobert Watson 	.mpo_check_vnode_access = mac_none_check_vnode_access,
9905c8dd342SRobert Watson 	.mpo_check_vnode_chdir = mac_none_check_vnode_chdir,
9915c8dd342SRobert Watson 	.mpo_check_vnode_chroot = mac_none_check_vnode_chroot,
9925c8dd342SRobert Watson 	.mpo_check_vnode_create = mac_none_check_vnode_create,
9935c8dd342SRobert Watson 	.mpo_check_vnode_delete = mac_none_check_vnode_delete,
9945c8dd342SRobert Watson 	.mpo_check_vnode_deleteacl = mac_none_check_vnode_deleteacl,
9955c8dd342SRobert Watson 	.mpo_check_vnode_exec = mac_none_check_vnode_exec,
9965c8dd342SRobert Watson 	.mpo_check_vnode_getacl = mac_none_check_vnode_getacl,
9975c8dd342SRobert Watson 	.mpo_check_vnode_getextattr = mac_none_check_vnode_getextattr,
9985c8dd342SRobert Watson 	.mpo_check_vnode_link = mac_none_check_vnode_link,
9995c8dd342SRobert Watson 	.mpo_check_vnode_lookup = mac_none_check_vnode_lookup,
10005c8dd342SRobert Watson 	.mpo_check_vnode_mmap = mac_none_check_vnode_mmap,
10015c8dd342SRobert Watson 	.mpo_check_vnode_mprotect = mac_none_check_vnode_mprotect,
10025c8dd342SRobert Watson 	.mpo_check_vnode_open = mac_none_check_vnode_open,
10035c8dd342SRobert Watson 	.mpo_check_vnode_poll = mac_none_check_vnode_poll,
10045c8dd342SRobert Watson 	.mpo_check_vnode_read = mac_none_check_vnode_read,
10055c8dd342SRobert Watson 	.mpo_check_vnode_readdir = mac_none_check_vnode_readdir,
10065c8dd342SRobert Watson 	.mpo_check_vnode_readlink = mac_none_check_vnode_readlink,
10075c8dd342SRobert Watson 	.mpo_check_vnode_relabel = mac_none_check_vnode_relabel,
10085c8dd342SRobert Watson 	.mpo_check_vnode_rename_from = mac_none_check_vnode_rename_from,
10095c8dd342SRobert Watson 	.mpo_check_vnode_rename_to = mac_none_check_vnode_rename_to,
10105c8dd342SRobert Watson 	.mpo_check_vnode_revoke = mac_none_check_vnode_revoke,
10115c8dd342SRobert Watson 	.mpo_check_vnode_setacl = mac_none_check_vnode_setacl,
10125c8dd342SRobert Watson 	.mpo_check_vnode_setextattr = mac_none_check_vnode_setextattr,
10135c8dd342SRobert Watson 	.mpo_check_vnode_setflags = mac_none_check_vnode_setflags,
10145c8dd342SRobert Watson 	.mpo_check_vnode_setmode = mac_none_check_vnode_setmode,
10155c8dd342SRobert Watson 	.mpo_check_vnode_setowner = mac_none_check_vnode_setowner,
10165c8dd342SRobert Watson 	.mpo_check_vnode_setutimes = mac_none_check_vnode_setutimes,
10175c8dd342SRobert Watson 	.mpo_check_vnode_stat = mac_none_check_vnode_stat,
10185c8dd342SRobert Watson 	.mpo_check_vnode_write = mac_none_check_vnode_write,
1019d8a7b7a3SRobert Watson };
1020d8a7b7a3SRobert Watson 
10215c8dd342SRobert Watson MAC_POLICY_SET(&mac_none_ops, trustedbsd_mac_none, "TrustedBSD MAC/None",
1022740348c4SRobert Watson     MPC_LOADTIME_FLAG_UNLOADOK, NULL);
1023