xref: /freebsd/sys/security/mac/mac_policy.h (revision 6780ab54325a71e7e70112b11657973edde8655e)
1 /*-
2  * Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson
3  * Copyright (c) 2001, 2002 Networks Associates Technology, Inc.
4  * All rights reserved.
5  *
6  * This software was developed by Robert Watson for the TrustedBSD Project.
7  *
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.
12  *
13  * Redistribution and use in source and binary forms, with or without
14  * modification, are permitted provided that the following conditions
15  * are met:
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.
21  *
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
32  * SUCH DAMAGE.
33  *
34  * $FreeBSD$
35  */
36 /*
37  * Kernel interface for MAC policy modules.
38  */
39 #ifndef _SYS_MAC_POLICY_H
40 #define _SYS_MAC_POLICY_H
41 
42 /*-
43  * Pluggable access control policy definition structure.
44  *
45  * List of operations that are performed as part of the implementation
46  * of a MAC policy.  Policy implementors declare operations with a
47  * mac_policy_ops structure, and using the MAC_POLICY_SET() macro.
48  * If an entry point is not declared, then then the policy will be ignored
49  * during evaluation of that event or check.
50  *
51  * Operations are sorted first by general class of operation, then
52  * alphabetically.
53  */
54 struct mac_policy_conf;
55 struct mac_policy_ops {
56 	/*
57 	 * Policy module operations.
58 	 */
59 	void	(*mpo_destroy)(struct mac_policy_conf *mpc);
60 	void	(*mpo_init)(struct mac_policy_conf *mpc);
61 
62 	/*
63 	 * General policy-directed security system call so that policies
64 	 * may implement new services without reserving explicit
65 	 * system call numbers.
66 	 */
67 	int	(*mpo_syscall)(struct thread *td, int call, void *arg);
68 
69 	/*
70 	 * Label operations.
71 	 */
72 	void	(*mpo_init_bpfdesc_label)(struct label *label);
73 	void	(*mpo_init_cred_label)(struct label *label);
74 	void	(*mpo_init_devfsdirent_label)(struct label *label);
75 	void	(*mpo_init_ifnet_label)(struct label *label);
76 	void	(*mpo_init_ipq_label)(struct label *label);
77 	int	(*mpo_init_mbuf_label)(struct label *label, int flag);
78 	void	(*mpo_init_mount_label)(struct label *label);
79 	void	(*mpo_init_mount_fs_label)(struct label *label);
80 	int	(*mpo_init_socket_label)(struct label *label, int flag);
81 	int	(*mpo_init_socket_peer_label)(struct label *label, int flag);
82 	void	(*mpo_init_pipe_label)(struct label *label);
83 	void	(*mpo_init_proc_label)(struct label *label);
84 	void	(*mpo_init_vnode_label)(struct label *label);
85 	void	(*mpo_destroy_bpfdesc_label)(struct label *label);
86 	void	(*mpo_destroy_cred_label)(struct label *label);
87 	void	(*mpo_destroy_devfsdirent_label)(struct label *label);
88 	void	(*mpo_destroy_ifnet_label)(struct label *label);
89 	void	(*mpo_destroy_ipq_label)(struct label *label);
90 	void	(*mpo_destroy_mbuf_label)(struct label *label);
91 	void	(*mpo_destroy_mount_label)(struct label *label);
92 	void	(*mpo_destroy_mount_fs_label)(struct label *label);
93 	void	(*mpo_destroy_socket_label)(struct label *label);
94 	void	(*mpo_destroy_socket_peer_label)(struct label *label);
95 	void	(*mpo_destroy_pipe_label)(struct label *label);
96 	void	(*mpo_destroy_proc_label)(struct label *label);
97 	void	(*mpo_destroy_vnode_label)(struct label *label);
98 	void	(*mpo_copy_pipe_label)(struct label *src,
99 		    struct label *dest);
100 	void	(*mpo_copy_vnode_label)(struct label *src,
101 		    struct label *dest);
102 	int	(*mpo_externalize_cred_label)(struct label *label,
103 		    char *element_name, char *buffer, size_t buflen,
104 		    size_t *len, int *claimed);
105 	int	(*mpo_externalize_ifnet_label)(struct label *label,
106 		    char *element_name, char *buffer, size_t buflen,
107 		    size_t *len, int *claimed);
108 	int	(*mpo_externalize_pipe_label)(struct label *label,
109 		    char *element_name, char *buffer, size_t buflen,
110 		    size_t *len, int *claimed);
111 	int	(*mpo_externalize_socket_label)(struct label *label,
112 		    char *element_name, char *buffer, size_t buflen,
113 		    size_t *len, int *claimed);
114 	int	(*mpo_externalize_socket_peer_label)(struct label *label,
115 		    char *element_name, char *buffer, size_t buflen,
116 		    size_t *len, int *claimed);
117 	int	(*mpo_externalize_vnode_label)(struct label *label,
118 		    char *element_name, char *buffer, size_t buflen,
119 		    size_t *len, int *claimed);
120 	int	(*mpo_internalize_cred_label)(struct label *label,
121 		    char *element_name, char *element_data, int *claimed);
122 	int	(*mpo_internalize_ifnet_label)(struct label *label,
123 		    char *element_name, char *element_data, int *claimed);
124 	int	(*mpo_internalize_pipe_label)(struct label *label,
125 		    char *element_name, char *element_data, int *claimed);
126 	int	(*mpo_internalize_socket_label)(struct label *label,
127 		    char *element_name, char *element_data, int *claimed);
128 	int	(*mpo_internalize_vnode_label)(struct label *label,
129 		    char *element_name, char *element_data, int *claimed);
130 
131 	/*
132 	 * Labeling event operations: file system objects, and things that
133 	 * look a lot like file system objects.
134 	 */
135 	void	(*mpo_associate_vnode_devfs)(struct mount *mp,
136 		    struct label *fslabel, struct devfs_dirent *de,
137 		    struct label *delabel, struct vnode *vp,
138 		    struct label *vlabel);
139 	int	(*mpo_associate_vnode_extattr)(struct mount *mp,
140 		    struct label *fslabel, struct vnode *vp,
141 		    struct label *vlabel);
142 	void	(*mpo_associate_vnode_singlelabel)(struct mount *mp,
143 		    struct label *fslabel, struct vnode *vp,
144 		    struct label *vlabel);
145 	void	(*mpo_create_devfs_device)(struct mount *mp, dev_t dev,
146 		    struct devfs_dirent *de, struct label *label);
147 	void	(*mpo_create_devfs_directory)(struct mount *mp, char *dirname,
148 		    int dirnamelen, struct devfs_dirent *de,
149 		    struct label *label);
150 	void	(*mpo_create_devfs_symlink)(struct ucred *cred,
151 		    struct mount *mp, struct devfs_dirent *dd,
152 		    struct label *ddlabel, struct devfs_dirent *de,
153 		    struct label *delabel);
154 	int	(*mpo_create_vnode_extattr)(struct ucred *cred,
155 		    struct mount *mp, struct label *fslabel,
156 		    struct vnode *dvp, struct label *dlabel,
157 		    struct vnode *vp, struct label *vlabel,
158 		    struct componentname *cnp);
159 	void	(*mpo_create_mount)(struct ucred *cred, struct mount *mp,
160 		    struct label *mntlabel, struct label *fslabel);
161 	void	(*mpo_create_root_mount)(struct ucred *cred, struct mount *mp,
162 		    struct label *mountlabel, struct label *fslabel);
163 	void	(*mpo_relabel_vnode)(struct ucred *cred, struct vnode *vp,
164 		    struct label *vnodelabel, struct label *label);
165 	int	(*mpo_setlabel_vnode_extattr)(struct ucred *cred,
166 		    struct vnode *vp, struct label *vlabel,
167 		    struct label *intlabel);
168 	void	(*mpo_update_devfsdirent)(struct mount *mp,
169 		    struct devfs_dirent *devfs_dirent,
170 		    struct label *direntlabel, struct vnode *vp,
171 		    struct label *vnodelabel);
172 
173 	/*
174 	 * Labeling event operations: IPC objects.
175 	 */
176 	void	(*mpo_create_mbuf_from_socket)(struct socket *so,
177 		    struct label *socketlabel, struct mbuf *m,
178 		    struct label *mbuflabel);
179 	void	(*mpo_create_socket)(struct ucred *cred, struct socket *so,
180 		    struct label *socketlabel);
181 	void	(*mpo_create_socket_from_socket)(struct socket *oldsocket,
182 		    struct label *oldsocketlabel, struct socket *newsocket,
183 		    struct label *newsocketlabel);
184 	void	(*mpo_relabel_socket)(struct ucred *cred, struct socket *so,
185 		    struct label *oldlabel, struct label *newlabel);
186 	void	(*mpo_relabel_pipe)(struct ucred *cred, struct pipe *pipe,
187 		    struct label *oldlabel, struct label *newlabel);
188 	void	(*mpo_set_socket_peer_from_mbuf)(struct mbuf *mbuf,
189 		    struct label *mbuflabel, struct socket *so,
190 		    struct label *socketpeerlabel);
191 	void	(*mpo_set_socket_peer_from_socket)(struct socket *oldsocket,
192 		    struct label *oldsocketlabel, struct socket *newsocket,
193 		    struct label *newsocketpeerlabel);
194 	void	(*mpo_create_pipe)(struct ucred *cred, struct pipe *pipe,
195 		    struct label *pipelabel);
196 
197 	/*
198 	 * Labeling event operations: network objects.
199 	 */
200 	void	(*mpo_create_bpfdesc)(struct ucred *cred, struct bpf_d *bpf_d,
201 		    struct label *bpflabel);
202 	void	(*mpo_create_ifnet)(struct ifnet *ifnet,
203 		    struct label *ifnetlabel);
204 	void	(*mpo_create_ipq)(struct mbuf *fragment,
205 		    struct label *fragmentlabel, struct ipq *ipq,
206 		    struct label *ipqlabel);
207 	void	(*mpo_create_datagram_from_ipq)
208 		    (struct ipq *ipq, struct label *ipqlabel,
209 		    struct mbuf *datagram, struct label *datagramlabel);
210 	void	(*mpo_create_fragment)(struct mbuf *datagram,
211 		    struct label *datagramlabel, struct mbuf *fragment,
212 		    struct label *fragmentlabel);
213 	void	(*mpo_create_mbuf_from_mbuf)(struct mbuf *oldmbuf,
214 		    struct label *oldlabel, struct mbuf *newmbuf,
215 		    struct label *newlabel);
216 	void	(*mpo_create_mbuf_linklayer)(struct ifnet *ifnet,
217 		    struct label *ifnetlabel, struct mbuf *mbuf,
218 		    struct label *mbuflabel);
219 	void	(*mpo_create_mbuf_from_bpfdesc)(struct bpf_d *bpf_d,
220 		    struct label *bpflabel, struct mbuf *mbuf,
221 		    struct label *mbuflabel);
222 	void	(*mpo_create_mbuf_from_ifnet)(struct ifnet *ifnet,
223 		    struct label *ifnetlabel, struct mbuf *mbuf,
224 		    struct label *mbuflabel);
225 	void	(*mpo_create_mbuf_multicast_encap)(struct mbuf *oldmbuf,
226 		    struct label *oldmbuflabel, struct ifnet *ifnet,
227 		    struct label *ifnetlabel, struct mbuf *newmbuf,
228 		    struct label *newmbuflabel);
229 	void	(*mpo_create_mbuf_netlayer)(struct mbuf *oldmbuf,
230 		    struct label *oldmbuflabel, struct mbuf *newmbuf,
231 		    struct label *newmbuflabel);
232 	int	(*mpo_fragment_match)(struct mbuf *fragment,
233 		    struct label *fragmentlabel, struct ipq *ipq,
234 		    struct label *ipqlabel);
235 	void	(*mpo_relabel_ifnet)(struct ucred *cred, struct ifnet *ifnet,
236 		    struct label *ifnetlabel, struct label *newlabel);
237 	void	(*mpo_update_ipq)(struct mbuf *fragment,
238 		    struct label *fragmentlabel, struct ipq *ipq,
239 		    struct label *ipqlabel);
240 
241 	/*
242 	 * Labeling event operations: processes.
243 	 */
244 	void	(*mpo_create_cred)(struct ucred *parent_cred,
245 		    struct ucred *child_cred);
246 	void	(*mpo_execve_transition)(struct ucred *old, struct ucred *new,
247 		    struct vnode *vp, struct label *vnodelabel,
248 		    struct label *interpvnodelabel,
249 		    struct image_params *imgp, struct label *execlabel);
250 	int	(*mpo_execve_will_transition)(struct ucred *old,
251 		    struct vnode *vp, struct label *vnodelabel,
252 		    struct label *interpvnodelabel,
253 		    struct image_params *imgp, struct label *execlabel);
254 	void	(*mpo_create_proc0)(struct ucred *cred);
255 	void	(*mpo_create_proc1)(struct ucred *cred);
256 	void	(*mpo_relabel_cred)(struct ucred *cred,
257 		    struct label *newlabel);
258 	void	(*mpo_thread_userret)(struct thread *thread);
259 
260 	/*
261 	 * Access control checks.
262 	 */
263 	int	(*mpo_check_bpfdesc_receive)(struct bpf_d *bpf_d,
264 		    struct label *bpflabel, struct ifnet *ifnet,
265 		    struct label *ifnetlabel);
266 	int	(*mpo_check_cred_relabel)(struct ucred *cred,
267 		    struct label *newlabel);
268 	int	(*mpo_check_cred_visible)(struct ucred *u1, struct ucred *u2);
269 	int	(*mpo_check_ifnet_relabel)(struct ucred *cred,
270 		    struct ifnet *ifnet, struct label *ifnetlabel,
271 		    struct label *newlabel);
272 	int	(*mpo_check_ifnet_transmit)(struct ifnet *ifnet,
273 		    struct label *ifnetlabel, struct mbuf *m,
274 		    struct label *mbuflabel);
275 	int	(*mpo_check_kenv_dump)(struct ucred *cred);
276 	int	(*mpo_check_kenv_get)(struct ucred *cred, char *name);
277 	int	(*mpo_check_kenv_set)(struct ucred *cred, char *name,
278 		    char *value);
279 	int	(*mpo_check_kenv_unset)(struct ucred *cred, char *name);
280 	int	(*mpo_check_kld_load)(struct ucred *cred, struct vnode *vp,
281 		    struct label *vlabel);
282 	int	(*mpo_check_kld_stat)(struct ucred *cred);
283 	int	(*mpo_check_kld_unload)(struct ucred *cred);
284 	int	(*mpo_check_mount_stat)(struct ucred *cred, struct mount *mp,
285 		    struct label *mntlabel);
286 	int	(*mpo_check_pipe_ioctl)(struct ucred *cred, struct pipe *pipe,
287 		    struct label *pipelabel, unsigned long cmd, void *data);
288 	int	(*mpo_check_pipe_poll)(struct ucred *cred, struct pipe *pipe,
289 		    struct label *pipelabel);
290 	int	(*mpo_check_pipe_read)(struct ucred *cred, struct pipe *pipe,
291 		    struct label *pipelabel);
292 	int	(*mpo_check_pipe_relabel)(struct ucred *cred,
293 		    struct pipe *pipe, struct label *pipelabel,
294 		    struct label *newlabel);
295 	int	(*mpo_check_pipe_stat)(struct ucred *cred, struct pipe *pipe,
296 		    struct label *pipelabel);
297 	int	(*mpo_check_pipe_write)(struct ucred *cred, struct pipe *pipe,
298 		    struct label *pipelabel);
299 	int	(*mpo_check_proc_debug)(struct ucred *cred,
300 		    struct proc *proc);
301 	int	(*mpo_check_proc_sched)(struct ucred *cred,
302 		    struct proc *proc);
303 	int	(*mpo_check_proc_signal)(struct ucred *cred,
304 		    struct proc *proc, int signum);
305 	int	(*mpo_check_socket_bind)(struct ucred *cred,
306 		    struct socket *so, struct label *socketlabel,
307 		    struct sockaddr *sockaddr);
308 	int	(*mpo_check_socket_connect)(struct ucred *cred,
309 		    struct socket *so, struct label *socketlabel,
310 		    struct sockaddr *sockaddr);
311 	int	(*mpo_check_socket_deliver)(struct socket *so,
312 		    struct label *socketlabel, struct mbuf *m,
313 		    struct label *mbuflabel);
314 	int	(*mpo_check_socket_listen)(struct ucred *cred,
315 		    struct socket *so, struct label *socketlabel);
316 	int	(*mpo_check_socket_receive)(struct ucred *cred,
317 		    struct socket *so, struct label *socketlabel);
318 	int	(*mpo_check_socket_relabel)(struct ucred *cred,
319 		    struct socket *so, struct label *socketlabel,
320 		    struct label *newlabel);
321 	int	(*mpo_check_socket_send)(struct ucred *cred,
322 		    struct socket *so, struct label *socketlabel);
323 	int	(*mpo_check_socket_visible)(struct ucred *cred,
324 		    struct socket *so, struct label *socketlabel);
325 	int	(*mpo_check_system_acct)(struct ucred *cred,
326 		    struct vnode *vp, struct label *vlabel);
327 	int	(*mpo_check_system_nfsd)(struct ucred *cred);
328 	int	(*mpo_check_system_reboot)(struct ucred *cred, int howto);
329 	int	(*mpo_check_system_settime)(struct ucred *cred);
330 	int	(*mpo_check_system_swapon)(struct ucred *cred,
331 		    struct vnode *vp, struct label *label);
332 	int	(*mpo_check_system_sysctl)(struct ucred *cred, int *name,
333 		    u_int namelen, void *old, size_t *oldlenp, int inkernel,
334 		    void *new, size_t newlen);
335 	int	(*mpo_check_vnode_access)(struct ucred *cred,
336 		    struct vnode *vp, struct label *label, int acc_mode);
337 	int	(*mpo_check_vnode_chdir)(struct ucred *cred,
338 		    struct vnode *dvp, struct label *dlabel);
339 	int	(*mpo_check_vnode_chroot)(struct ucred *cred,
340 		    struct vnode *dvp, struct label *dlabel);
341 	int	(*mpo_check_vnode_create)(struct ucred *cred,
342 		    struct vnode *dvp, struct label *dlabel,
343 		    struct componentname *cnp, struct vattr *vap);
344 	int	(*mpo_check_vnode_delete)(struct ucred *cred,
345 		    struct vnode *dvp, struct label *dlabel,
346 		    struct vnode *vp, struct label *label,
347 		    struct componentname *cnp);
348 	int	(*mpo_check_vnode_deleteacl)(struct ucred *cred,
349 		    struct vnode *vp, struct label *label, acl_type_t type);
350 	int	(*mpo_check_vnode_exec)(struct ucred *cred, struct vnode *vp,
351 		    struct label *label, struct image_params *imgp,
352 		    struct label *execlabel);
353 	int	(*mpo_check_vnode_getacl)(struct ucred *cred,
354 		    struct vnode *vp, struct label *label, acl_type_t type);
355 	int	(*mpo_check_vnode_getextattr)(struct ucred *cred,
356 		    struct vnode *vp, struct label *label, int attrnamespace,
357 		    const char *name, struct uio *uio);
358 	int	(*mpo_check_vnode_link)(struct ucred *cred, struct vnode *dvp,
359 		    struct label *dlabel, struct vnode *vp,
360 		    struct label *label, struct componentname *cnp);
361 	int	(*mpo_check_vnode_lookup)(struct ucred *cred,
362 		    struct vnode *dvp, struct label *dlabel,
363 		    struct componentname *cnp);
364 	int	(*mpo_check_vnode_mmap)(struct ucred *cred, struct vnode *vp,
365 		    struct label *label, int prot);
366 	void	(*mpo_check_vnode_mmap_downgrade)(struct ucred *cred,
367 		    struct vnode *vp, struct label *label, int *prot);
368 	int	(*mpo_check_vnode_mprotect)(struct ucred *cred,
369 		    struct vnode *vp, struct label *label, int prot);
370 	int	(*mpo_check_vnode_open)(struct ucred *cred, struct vnode *vp,
371 		    struct label *label, int acc_mode);
372 	int	(*mpo_check_vnode_poll)(struct ucred *active_cred,
373 		    struct ucred *file_cred, struct vnode *vp,
374 		    struct label *label);
375 	int	(*mpo_check_vnode_read)(struct ucred *active_cred,
376 		    struct ucred *file_cred, struct vnode *vp,
377 		    struct label *label);
378 	int	(*mpo_check_vnode_readdir)(struct ucred *cred,
379 		    struct vnode *dvp, struct label *dlabel);
380 	int	(*mpo_check_vnode_readlink)(struct ucred *cred,
381 		    struct vnode *vp, struct label *label);
382 	int	(*mpo_check_vnode_relabel)(struct ucred *cred,
383 		    struct vnode *vp, struct label *vnodelabel,
384 		    struct label *newlabel);
385 	int	(*mpo_check_vnode_rename_from)(struct ucred *cred,
386 		    struct vnode *dvp, struct label *dlabel, struct vnode *vp,
387 		    struct label *label, struct componentname *cnp);
388 	int	(*mpo_check_vnode_rename_to)(struct ucred *cred,
389 		    struct vnode *dvp, struct label *dlabel, struct vnode *vp,
390 		    struct label *label, int samedir,
391 		    struct componentname *cnp);
392 	int	(*mpo_check_vnode_revoke)(struct ucred *cred,
393 		    struct vnode *vp, struct label *label);
394 	int	(*mpo_check_vnode_setacl)(struct ucred *cred,
395 		    struct vnode *vp, struct label *label, acl_type_t type,
396 		    struct acl *acl);
397 	int	(*mpo_check_vnode_setextattr)(struct ucred *cred,
398 		    struct vnode *vp, struct label *label, int attrnamespace,
399 		    const char *name, struct uio *uio);
400 	int	(*mpo_check_vnode_setflags)(struct ucred *cred,
401 		    struct vnode *vp, struct label *label, u_long flags);
402 	int	(*mpo_check_vnode_setmode)(struct ucred *cred,
403 		    struct vnode *vp, struct label *label, mode_t mode);
404 	int	(*mpo_check_vnode_setowner)(struct ucred *cred,
405 		    struct vnode *vp, struct label *label, uid_t uid,
406 		    gid_t gid);
407 	int	(*mpo_check_vnode_setutimes)(struct ucred *cred,
408 		    struct vnode *vp, struct label *label,
409 		    struct timespec atime, struct timespec mtime);
410 	int	(*mpo_check_vnode_stat)(struct ucred *active_cred,
411 		    struct ucred *file_cred, struct vnode *vp,
412 		    struct label *label);
413 	int	(*mpo_check_vnode_write)(struct ucred *active_cred,
414 		    struct ucred *file_cred, struct vnode *vp,
415 		    struct label *label);
416 };
417 
418 struct mac_policy_conf {
419 	char				*mpc_name;	/* policy name */
420 	char				*mpc_fullname;	/* policy full name */
421 	struct mac_policy_ops		*mpc_ops;	/* policy operations */
422 	int				 mpc_loadtime_flags;	/* flags */
423 	int				*mpc_field_off; /* security field */
424 	int				 mpc_runtime_flags; /* flags */
425 	LIST_ENTRY(mac_policy_conf)	 mpc_list;	/* global list */
426 };
427 
428 /* Flags for the mpc_loadtime_flags field. */
429 #define	MPC_LOADTIME_FLAG_NOTLATE	0x00000001
430 #define	MPC_LOADTIME_FLAG_UNLOADOK	0x00000002
431 
432 /* Flags for the mpc_runtime_flags field. */
433 #define	MPC_RUNTIME_FLAG_REGISTERED	0x00000001
434 
435 #define	MAC_POLICY_SET(mpops, mpname, mpfullname, mpflags, privdata_wanted) \
436 	static struct mac_policy_conf mpname##_mac_policy_conf = {	\
437 		#mpname,						\
438 		mpfullname,						\
439 		mpops,							\
440 		mpflags,						\
441 		privdata_wanted,					\
442 		0,							\
443 	};								\
444 	static moduledata_t mpname##_mod = {				\
445 		#mpname,						\
446 		mac_policy_modevent,					\
447 		&mpname##_mac_policy_conf				\
448 	};								\
449 	MODULE_DEPEND(mpname, kernel_mac_support, 1, 1, 1);		\
450 	DECLARE_MODULE(mpname, mpname##_mod, SI_SUB_MAC_POLICY,		\
451 	    SI_ORDER_MIDDLE)
452 
453 int	mac_policy_modevent(module_t mod, int type, void *data);
454 
455 #define	LABEL_TO_SLOT(l, s)	(l)->l_perpolicy[s]
456 
457 #endif /* !_SYS_MAC_POLICY_H */
458