FreeBSD/Linux Kernel Cross Reference
sys/sys/mac_policy.h
1 /*-
2 * Copyright (c) 1999-2002 Robert N. M. Watson
3 * Copyright (c) 2001-2005 Networks Associates Technology, Inc.
4 * Copyright (c) 2005 SPARTA, Inc.
5 * All rights reserved.
6 *
7 * This software was developed by Robert Watson for the TrustedBSD Project.
8 *
9 * This software was developed for the FreeBSD Project in part by Network
10 * Associates Laboratories, the Security Research Division of Network
11 * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"),
12 * as part of the DARPA CHATS research program.
13 *
14 * This software was enhanced by SPARTA ISSO under SPAWAR contract
15 * N66001-04-C-6019 ("SEFOS").
16 *
17 * Redistribution and use in source and binary forms, with or without
18 * modification, are permitted provided that the following conditions
19 * are met:
20 * 1. Redistributions of source code must retain the above copyright
21 * notice, this list of conditions and the following disclaimer.
22 * 2. Redistributions in binary form must reproduce the above copyright
23 * notice, this list of conditions and the following disclaimer in the
24 * documentation and/or other materials provided with the distribution.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 *
38 * $FreeBSD: releng/6.4/sys/sys/mac_policy.h 162448 2006-09-19 15:45:22Z csjp $
39 */
40 /*
41 * Kernel interface for MAC policy modules.
42 */
43 #ifndef _SYS_MAC_POLICY_H_
44 #define _SYS_MAC_POLICY_H_
45
46 /*-
47 * Pluggable access control policy definition structure.
48 *
49 * List of operations that are performed as part of the implementation
50 * of a MAC policy. Policy implementors declare operations with a
51 * mac_policy_ops structure, and using the MAC_POLICY_SET() macro.
52 * If an entry point is not declared, then then the policy will be ignored
53 * during evaluation of that event or check.
54 *
55 * Operations are sorted first by general class of operation, then
56 * alphabetically.
57 */
58 struct acl;
59 struct bpf_d;
60 struct componentname;
61 struct devfs_dirent;
62 struct ifnet;
63 struct image_params;
64 struct inpcb;
65 struct ipq;
66 struct ksem;
67 struct label;
68 struct mac_policy_conf;
69 struct mbuf;
70 struct mount;
71 struct msqid_kernel;
72 struct pipepair;
73 struct proc;
74 struct sbuf;
75 struct semid_kernel;
76 struct shmid_kernel;
77 struct sockaddr;
78 struct socket;
79 struct sysctl_oid;
80 struct sysctl_req;
81 struct thread;
82 struct ucred;
83 struct uio;
84 struct vattr;
85 struct vnode;
86 struct mac_policy_ops {
87 /*
88 * Policy module operations.
89 */
90 void (*mpo_destroy)(struct mac_policy_conf *mpc);
91 void (*mpo_init)(struct mac_policy_conf *mpc);
92
93 /*
94 * General policy-directed security system call so that policies may
95 * implement new services without reserving explicit system call
96 * numbers.
97 */
98 int (*mpo_syscall)(struct thread *td, int call, void *arg);
99
100 /*
101 * Label operations. Initialize label storage, destroy label
102 * storage, recycle for re-use without init/destroy, copy a label to
103 * initialized storage, and externalize/internalize from/to
104 * initialized storage.
105 */
106 void (*mpo_init_bpfdesc_label)(struct label *label);
107 void (*mpo_init_cred_label)(struct label *label);
108 void (*mpo_init_devfsdirent_label)(struct label *label);
109 void (*_mpo_placeholder0)(void);
110 void (*mpo_init_ifnet_label)(struct label *label);
111 int (*mpo_init_inpcb_label)(struct label *label, int flag);
112 void (*mpo_init_sysv_msgmsg_label)(struct label *label);
113 void (*mpo_init_sysv_msgqueue_label)(struct label *label);
114 void (*mpo_init_sysv_sem_label)(struct label *label);
115 void (*mpo_init_sysv_shm_label)(struct label *label);
116 int (*mpo_init_ipq_label)(struct label *label, int flag);
117 int (*mpo_init_mbuf_label)(struct label *label, int flag);
118 void (*mpo_init_mount_label)(struct label *label);
119 void (*mpo_init_mount_fs_label)(struct label *label);
120 int (*mpo_init_socket_label)(struct label *label, int flag);
121 int (*mpo_init_socket_peer_label)(struct label *label, int flag);
122 void (*mpo_init_pipe_label)(struct label *label);
123 void (*mpo_init_posix_sem_label)(struct label *label);
124 void (*mpo_init_proc_label)(struct label *label);
125 void (*mpo_init_vnode_label)(struct label *label);
126 void (*mpo_destroy_bpfdesc_label)(struct label *label);
127 void (*mpo_destroy_cred_label)(struct label *label);
128 void (*mpo_destroy_devfsdirent_label)(struct label *label);
129 void (*_mpo_placeholder1)(void);
130 void (*mpo_destroy_ifnet_label)(struct label *label);
131 void (*mpo_destroy_inpcb_label)(struct label *label);
132 void (*mpo_destroy_sysv_msgmsg_label)(struct label *label);
133 void (*mpo_destroy_sysv_msgqueue_label)(struct label *label);
134 void (*mpo_destroy_sysv_sem_label)(struct label *label);
135 void (*mpo_destroy_sysv_shm_label)(struct label *label);
136 void (*mpo_destroy_ipq_label)(struct label *label);
137 void (*mpo_destroy_mbuf_label)(struct label *label);
138 void (*mpo_destroy_mount_label)(struct label *label);
139 void (*mpo_destroy_mount_fs_label)(struct label *label);
140 void (*mpo_destroy_socket_label)(struct label *label);
141 void (*mpo_destroy_socket_peer_label)(struct label *label);
142 void (*mpo_destroy_pipe_label)(struct label *label);
143 void (*mpo_destroy_posix_sem_label)(struct label *label);
144 void (*mpo_destroy_proc_label)(struct label *label);
145 void (*mpo_destroy_vnode_label)(struct label *label);
146 void (*mpo_cleanup_sysv_msgmsg)(struct label *msglabel);
147 void (*mpo_cleanup_sysv_msgqueue)(struct label *msqlabel);
148 void (*mpo_cleanup_sysv_sem)(struct label *semalabel);
149 void (*mpo_cleanup_sysv_shm)(struct label *shmlabel);
150 void (*mpo_copy_cred_label)(struct label *src,
151 struct label *dest);
152 void (*mpo_copy_ifnet_label)(struct label *src,
153 struct label *dest);
154 void (*mpo_copy_mbuf_label)(struct label *src,
155 struct label *dest);
156 void (*_mpo_placeholder2)(void);
157 void (*mpo_copy_pipe_label)(struct label *src,
158 struct label *dest);
159 void (*mpo_copy_socket_label)(struct label *src,
160 struct label *dest);
161 void (*mpo_copy_vnode_label)(struct label *src,
162 struct label *dest);
163 int (*mpo_externalize_cred_label)(struct label *label,
164 char *element_name, struct sbuf *sb, int *claimed);
165 int (*mpo_externalize_ifnet_label)(struct label *label,
166 char *element_name, struct sbuf *sb, int *claimed);
167 void (*_mpo_placeholder3)(void);
168 int (*mpo_externalize_pipe_label)(struct label *label,
169 char *element_name, struct sbuf *sb, int *claimed);
170 int (*mpo_externalize_socket_label)(struct label *label,
171 char *element_name, struct sbuf *sb, int *claimed);
172 int (*mpo_externalize_socket_peer_label)(struct label *label,
173 char *element_name, struct sbuf *sb, int *claimed);
174 int (*mpo_externalize_vnode_label)(struct label *label,
175 char *element_name, struct sbuf *sb, int *claimed);
176 int (*mpo_internalize_cred_label)(struct label *label,
177 char *element_name, char *element_data, int *claimed);
178 int (*mpo_internalize_ifnet_label)(struct label *label,
179 char *element_name, char *element_data, int *claimed);
180 void (*_mpo_placeholder4)(void);
181 int (*mpo_internalize_pipe_label)(struct label *label,
182 char *element_name, char *element_data, int *claimed);
183 int (*mpo_internalize_socket_label)(struct label *label,
184 char *element_name, char *element_data, int *claimed);
185 int (*mpo_internalize_vnode_label)(struct label *label,
186 char *element_name, char *element_data, int *claimed);
187
188 /*
189 * Labeling event operations: file system objects, and things that
190 * look a lot like file system objects.
191 */
192 void (*mpo_associate_vnode_devfs)(struct mount *mp,
193 struct label *fslabel, struct devfs_dirent *de,
194 struct label *delabel, struct vnode *vp,
195 struct label *vlabel);
196 int (*mpo_associate_vnode_extattr)(struct mount *mp,
197 struct label *fslabel, struct vnode *vp,
198 struct label *vlabel);
199 void (*mpo_associate_vnode_singlelabel)(struct mount *mp,
200 struct label *fslabel, struct vnode *vp,
201 struct label *vlabel);
202 void (*mpo_create_devfs_device)(struct ucred *cred,
203 struct mount *mp, struct cdev *dev,
204 struct devfs_dirent *de, struct label *label);
205 void (*mpo_create_devfs_directory)(struct mount *mp, char *dirname,
206 int dirnamelen, struct devfs_dirent *de,
207 struct label *label);
208 void (*mpo_create_devfs_symlink)(struct ucred *cred,
209 struct mount *mp, struct devfs_dirent *dd,
210 struct label *ddlabel, struct devfs_dirent *de,
211 struct label *delabel);
212 void (*_mpo_placeholder5)(void);
213 int (*mpo_create_vnode_extattr)(struct ucred *cred,
214 struct mount *mp, struct label *fslabel,
215 struct vnode *dvp, struct label *dlabel,
216 struct vnode *vp, struct label *vlabel,
217 struct componentname *cnp);
218 void (*mpo_create_mount)(struct ucred *cred, struct mount *mp,
219 struct label *mntlabel, struct label *fslabel);
220 void (*mpo_relabel_vnode)(struct ucred *cred, struct vnode *vp,
221 struct label *vnodelabel, struct label *label);
222 int (*mpo_setlabel_vnode_extattr)(struct ucred *cred,
223 struct vnode *vp, struct label *vlabel,
224 struct label *intlabel);
225 void (*mpo_update_devfsdirent)(struct mount *mp,
226 struct devfs_dirent *devfs_dirent,
227 struct label *direntlabel, struct vnode *vp,
228 struct label *vnodelabel);
229
230 /*
231 * Labeling event operations: IPC objects.
232 */
233 void (*mpo_create_mbuf_from_socket)(struct socket *so,
234 struct label *socketlabel, struct mbuf *m,
235 struct label *mbuflabel);
236 void (*mpo_create_socket)(struct ucred *cred, struct socket *so,
237 struct label *socketlabel);
238 void (*mpo_create_socket_from_socket)(struct socket *oldsocket,
239 struct label *oldsocketlabel, struct socket *newsocket,
240 struct label *newsocketlabel);
241 void (*mpo_relabel_socket)(struct ucred *cred, struct socket *so,
242 struct label *oldlabel, struct label *newlabel);
243 void (*mpo_relabel_pipe)(struct ucred *cred, struct pipepair *pp,
244 struct label *oldlabel, struct label *newlabel);
245 void (*mpo_set_socket_peer_from_mbuf)(struct mbuf *mbuf,
246 struct label *mbuflabel, struct socket *so,
247 struct label *socketpeerlabel);
248 void (*mpo_set_socket_peer_from_socket)(struct socket *oldsocket,
249 struct label *oldsocketlabel, struct socket *newsocket,
250 struct label *newsocketpeerlabel);
251 void (*mpo_create_pipe)(struct ucred *cred, struct pipepair *pp,
252 struct label *pipelabel);
253
254 /*
255 * Labeling event operations: System V IPC primitives.
256 */
257 void (*mpo_create_sysv_msgmsg)(struct ucred *cred,
258 struct msqid_kernel *msqkptr, struct label *msqlabel,
259 struct msg *msgptr, struct label *msglabel);
260 void (*mpo_create_sysv_msgqueue)(struct ucred *cred,
261 struct msqid_kernel *msqkptr, struct label *msqlabel);
262 void (*mpo_create_sysv_sem)(struct ucred *cred,
263 struct semid_kernel *semakptr, struct label *semalabel);
264 void (*mpo_create_sysv_shm)(struct ucred *cred,
265 struct shmid_kernel *shmsegptr, struct label *shmlabel);
266
267 /*
268 * Labeling event operations: POSIX (global/inter-process) semaphores.
269 */
270 void (*mpo_create_posix_sem)(struct ucred *cred,
271 struct ksem *ksemptr, struct label *ks_label);
272
273 /*
274 * Labeling event operations: network objects.
275 */
276 void (*mpo_create_bpfdesc)(struct ucred *cred, struct bpf_d *bpf_d,
277 struct label *bpflabel);
278 void (*mpo_create_ifnet)(struct ifnet *ifnet,
279 struct label *ifnetlabel);
280 void (*mpo_create_inpcb_from_socket)(struct socket *so,
281 struct label *solabel, struct inpcb *inp,
282 struct label *inplabel);
283 void (*mpo_create_ipq)(struct mbuf *fragment,
284 struct label *fragmentlabel, struct ipq *ipq,
285 struct label *ipqlabel);
286 void (*mpo_create_datagram_from_ipq)
287 (struct ipq *ipq, struct label *ipqlabel,
288 struct mbuf *datagram, struct label *datagramlabel);
289 void (*mpo_create_fragment)(struct mbuf *datagram,
290 struct label *datagramlabel, struct mbuf *fragment,
291 struct label *fragmentlabel);
292 void (*mpo_create_mbuf_from_inpcb)(struct inpcb *inp,
293 struct label *inplabel, struct mbuf *m,
294 struct label *mlabel);
295 void (*mpo_create_mbuf_linklayer)(struct ifnet *ifnet,
296 struct label *ifnetlabel, struct mbuf *mbuf,
297 struct label *mbuflabel);
298 void (*mpo_create_mbuf_from_bpfdesc)(struct bpf_d *bpf_d,
299 struct label *bpflabel, struct mbuf *mbuf,
300 struct label *mbuflabel);
301 void (*mpo_create_mbuf_from_ifnet)(struct ifnet *ifnet,
302 struct label *ifnetlabel, struct mbuf *mbuf,
303 struct label *mbuflabel);
304 void (*mpo_create_mbuf_multicast_encap)(struct mbuf *oldmbuf,
305 struct label *oldmbuflabel, struct ifnet *ifnet,
306 struct label *ifnetlabel, struct mbuf *newmbuf,
307 struct label *newmbuflabel);
308 void (*mpo_create_mbuf_netlayer)(struct mbuf *oldmbuf,
309 struct label *oldmbuflabel, struct mbuf *newmbuf,
310 struct label *newmbuflabel);
311 int (*mpo_fragment_match)(struct mbuf *fragment,
312 struct label *fragmentlabel, struct ipq *ipq,
313 struct label *ipqlabel);
314 void (*mpo_reflect_mbuf_icmp)(struct mbuf *m,
315 struct label *mlabel);
316 void (*mpo_reflect_mbuf_tcp)(struct mbuf *m, struct label *mlabel);
317 void (*mpo_relabel_ifnet)(struct ucred *cred, struct ifnet *ifnet,
318 struct label *ifnetlabel, struct label *newlabel);
319 void (*mpo_update_ipq)(struct mbuf *fragment,
320 struct label *fragmentlabel, struct ipq *ipq,
321 struct label *ipqlabel);
322 void (*mpo_inpcb_sosetlabel)(struct socket *so,
323 struct label *label, struct inpcb *inp,
324 struct label *inplabel);
325
326 /*
327 * Labeling event operations: processes.
328 */
329 void (*mpo_execve_transition)(struct ucred *old, struct ucred *new,
330 struct vnode *vp, struct label *vnodelabel,
331 struct label *interpvnodelabel,
332 struct image_params *imgp, struct label *execlabel);
333 int (*mpo_execve_will_transition)(struct ucred *old,
334 struct vnode *vp, struct label *vnodelabel,
335 struct label *interpvnodelabel,
336 struct image_params *imgp, struct label *execlabel);
337 void (*mpo_create_proc0)(struct ucred *cred);
338 void (*mpo_create_proc1)(struct ucred *cred);
339 void (*mpo_relabel_cred)(struct ucred *cred,
340 struct label *newlabel);
341 void (*_mpo_placeholder6)(void);
342 void (*mpo_thread_userret)(struct thread *thread);
343
344 /*
345 * Access control checks.
346 */
347 int (*mpo_check_bpfdesc_receive)(struct bpf_d *bpf_d,
348 struct label *bpflabel, struct ifnet *ifnet,
349 struct label *ifnetlabel);
350 void (*_mpo_placeholder7)(void);
351 int (*mpo_check_cred_relabel)(struct ucred *cred,
352 struct label *newlabel);
353 int (*mpo_check_cred_visible)(struct ucred *u1, struct ucred *u2);
354 void (*mpo_associate_nfsd_label)(struct ucred *cred);
355 void (*mpo_create_mbuf_from_firewall)(struct mbuf *m,
356 struct label *label);
357 void (*_mpo_placeholder10)(void);
358 void (*_mpo_placeholder11)(void);
359 void (*_mpo_placeholder12)(void);
360 void (*_mpo_placeholder13)(void);
361 void (*_mpo_placeholder14)(void);
362 void (*_mpo_placeholder15)(void);
363 void (*_mpo_placeholder16)(void);
364 void (*_mpo_placeholder17)(void);
365 void (*_mpo_placeholder18)(void);
366 int (*mpo_check_ifnet_relabel)(struct ucred *cred,
367 struct ifnet *ifnet, struct label *ifnetlabel,
368 struct label *newlabel);
369 int (*mpo_check_ifnet_transmit)(struct ifnet *ifnet,
370 struct label *ifnetlabel, struct mbuf *m,
371 struct label *mbuflabel);
372 int (*mpo_check_inpcb_deliver)(struct inpcb *inp,
373 struct label *inplabel, struct mbuf *m,
374 struct label *mlabel);
375 int (*mpo_check_sysv_msgmsq)(struct ucred *cred,
376 struct msg *msgptr, struct label *msglabel,
377 struct msqid_kernel *msqkptr, struct label *msqklabel);
378 int (*mpo_check_sysv_msgrcv)(struct ucred *cred,
379 struct msg *msgptr, struct label *msglabel);
380 int (*mpo_check_sysv_msgrmid)(struct ucred *cred,
381 struct msg *msgptr, struct label *msglabel);
382 int (*mpo_check_sysv_msqget)(struct ucred *cred,
383 struct msqid_kernel *msqkptr, struct label *msqklabel);
384 int (*mpo_check_sysv_msqsnd)(struct ucred *cred,
385 struct msqid_kernel *msqkptr, struct label *msqklabel);
386 int (*mpo_check_sysv_msqrcv)(struct ucred *cred,
387 struct msqid_kernel *msqkptr, struct label *msqklabel);
388 int (*mpo_check_sysv_msqctl)(struct ucred *cred,
389 struct msqid_kernel *msqkptr, struct label *msqklabel,
390 int cmd);
391 int (*mpo_check_sysv_semctl)(struct ucred *cred,
392 struct semid_kernel *semakptr, struct label *semaklabel,
393 int cmd);
394 int (*mpo_check_sysv_semget)(struct ucred *cred,
395 struct semid_kernel *semakptr, struct label *semaklabel);
396 int (*mpo_check_sysv_semop)(struct ucred *cred,
397 struct semid_kernel *semakptr, struct label *semaklabel,
398 size_t accesstype);
399 int (*mpo_check_sysv_shmat)(struct ucred *cred,
400 struct shmid_kernel *shmsegptr,
401 struct label *shmseglabel, int shmflg);
402 int (*mpo_check_sysv_shmctl)(struct ucred *cred,
403 struct shmid_kernel *shmsegptr,
404 struct label *shmseglabel, int cmd);
405 int (*mpo_check_sysv_shmdt)(struct ucred *cred,
406 struct shmid_kernel *shmsegptr,
407 struct label *shmseglabel);
408 int (*mpo_check_sysv_shmget)(struct ucred *cred,
409 struct shmid_kernel *shmsegptr,
410 struct label *shmseglabel, int shmflg);
411 int (*mpo_check_kenv_dump)(struct ucred *cred);
412 int (*mpo_check_kenv_get)(struct ucred *cred, char *name);
413 int (*mpo_check_kenv_set)(struct ucred *cred, char *name,
414 char *value);
415 int (*mpo_check_kenv_unset)(struct ucred *cred, char *name);
416 int (*mpo_check_kld_load)(struct ucred *cred, struct vnode *vp,
417 struct label *vlabel);
418 int (*mpo_check_kld_stat)(struct ucred *cred);
419 int (*mpo_check_kld_unload)(struct ucred *cred);
420 void (*_mpo_placeholder19)(void);
421 void (*_mpo_placeholder20)(void);
422 int (*mpo_check_mount_stat)(struct ucred *cred, struct mount *mp,
423 struct label *mntlabel);
424 void (*_mpo_placeholder21)(void);
425 int (*mpo_check_pipe_ioctl)(struct ucred *cred,
426 struct pipepair *pp, struct label *pipelabel,
427 unsigned long cmd, void *data);
428 int (*mpo_check_pipe_poll)(struct ucred *cred,
429 struct pipepair *pp, struct label *pipelabel);
430 int (*mpo_check_pipe_read)(struct ucred *cred,
431 struct pipepair *pp, struct label *pipelabel);
432 int (*mpo_check_pipe_relabel)(struct ucred *cred,
433 struct pipepair *pp, struct label *pipelabel,
434 struct label *newlabel);
435 int (*mpo_check_pipe_stat)(struct ucred *cred,
436 struct pipepair *pp, struct label *pipelabel);
437 int (*mpo_check_pipe_write)(struct ucred *cred,
438 struct pipepair *pp, struct label *pipelabel);
439 int (*mpo_check_posix_sem_destroy)(struct ucred *cred,
440 struct ksem *ksemptr, struct label *ks_label);
441 int (*mpo_check_posix_sem_getvalue)(struct ucred *cred,
442 struct ksem *ksemptr, struct label *ks_label);
443 int (*mpo_check_posix_sem_open)(struct ucred *cred,
444 struct ksem *ksemptr, struct label *ks_label);
445 int (*mpo_check_posix_sem_post)(struct ucred *cred,
446 struct ksem *ksemptr, struct label *ks_label);
447 int (*mpo_check_posix_sem_unlink)(struct ucred *cred,
448 struct ksem *ksemptr, struct label *ks_label);
449 int (*mpo_check_posix_sem_wait)(struct ucred *cred,
450 struct ksem *ksemptr, struct label *ks_label);
451 int (*mpo_check_proc_debug)(struct ucred *cred,
452 struct proc *proc);
453 int (*mpo_check_proc_sched)(struct ucred *cred,
454 struct proc *proc);
455 int (*mpo_check_proc_setuid)(struct ucred *cred, uid_t uid);
456 int (*mpo_check_proc_seteuid)(struct ucred *cred, uid_t euid);
457 int (*mpo_check_proc_setgid)(struct ucred *cred, gid_t gid);
458 int (*mpo_check_proc_setegid)(struct ucred *cred, gid_t egid);
459 int (*mpo_check_proc_setgroups)(struct ucred *cred, int ngroups,
460 gid_t *gidset);
461 int (*mpo_check_proc_setreuid)(struct ucred *cred, uid_t ruid,
462 uid_t euid);
463 int (*mpo_check_proc_setregid)(struct ucred *cred, gid_t rgid,
464 gid_t egid);
465 int (*mpo_check_proc_setresuid)(struct ucred *cred, uid_t ruid,
466 uid_t euid, uid_t suid);
467 int (*mpo_check_proc_setresgid)(struct ucred *cred, gid_t rgid,
468 gid_t egid, gid_t sgid);
469 int (*mpo_check_proc_signal)(struct ucred *cred,
470 struct proc *proc, int signum);
471 int (*mpo_check_proc_wait)(struct ucred *cred,
472 struct proc *proc);
473 int (*mpo_check_socket_accept)(struct ucred *cred,
474 struct socket *so, struct label *socketlabel);
475 int (*mpo_check_socket_bind)(struct ucred *cred,
476 struct socket *so, struct label *socketlabel,
477 struct sockaddr *sockaddr);
478 int (*mpo_check_socket_connect)(struct ucred *cred,
479 struct socket *so, struct label *socketlabel,
480 struct sockaddr *sockaddr);
481 int (*mpo_check_socket_create)(struct ucred *cred, int domain,
482 int type, int protocol);
483 int (*mpo_check_socket_deliver)(struct socket *so,
484 struct label *socketlabel, struct mbuf *m,
485 struct label *mbuflabel);
486 void (*_mpo_placeholder22)(void);
487 int (*mpo_check_socket_listen)(struct ucred *cred,
488 struct socket *so, struct label *socketlabel);
489 int (*mpo_check_socket_poll)(struct ucred *cred,
490 struct socket *so, struct label *socketlabel);
491 int (*mpo_check_socket_receive)(struct ucred *cred,
492 struct socket *so, struct label *socketlabel);
493 int (*mpo_check_socket_relabel)(struct ucred *cred,
494 struct socket *so, struct label *socketlabel,
495 struct label *newlabel);
496 int (*mpo_check_socket_send)(struct ucred *cred,
497 struct socket *so, struct label *socketlabel);
498 int (*mpo_check_socket_stat)(struct ucred *cred,
499 struct socket *so, struct label *socketlabel);
500 int (*mpo_check_socket_visible)(struct ucred *cred,
501 struct socket *so, struct label *socketlabel);
502 int (*mpo_check_sysarch_ioperm)(struct ucred *cred);
503 int (*mpo_check_system_acct)(struct ucred *cred,
504 struct vnode *vp, struct label *vlabel);
505 int (*mpo_check_system_nfsd)(struct ucred *cred);
506 int (*mpo_check_system_reboot)(struct ucred *cred, int howto);
507 int (*mpo_check_system_settime)(struct ucred *cred);
508 int (*mpo_check_system_swapon)(struct ucred *cred,
509 struct vnode *vp, struct label *label);
510 int (*mpo_check_system_swapoff)(struct ucred *cred,
511 struct vnode *vp, struct label *label);
512 int (*mpo_check_system_sysctl)(struct ucred *cred,
513 struct sysctl_oid *oidp, void *arg1, int arg2,
514 struct sysctl_req *req);
515 void (*_mpo_placeholder23)(void);
516 int (*mpo_check_vnode_access)(struct ucred *cred,
517 struct vnode *vp, struct label *label, int acc_mode);
518 int (*mpo_check_vnode_chdir)(struct ucred *cred,
519 struct vnode *dvp, struct label *dlabel);
520 int (*mpo_check_vnode_chroot)(struct ucred *cred,
521 struct vnode *dvp, struct label *dlabel);
522 int (*mpo_check_vnode_create)(struct ucred *cred,
523 struct vnode *dvp, struct label *dlabel,
524 struct componentname *cnp, struct vattr *vap);
525 int (*mpo_check_vnode_delete)(struct ucred *cred,
526 struct vnode *dvp, struct label *dlabel,
527 struct vnode *vp, struct label *label,
528 struct componentname *cnp);
529 int (*mpo_check_vnode_deleteacl)(struct ucred *cred,
530 struct vnode *vp, struct label *label, acl_type_t type);
531 int (*mpo_check_vnode_deleteextattr)(struct ucred *cred,
532 struct vnode *vp, struct label *label, int attrnamespace,
533 const char *name);
534 int (*mpo_check_vnode_exec)(struct ucred *cred, struct vnode *vp,
535 struct label *label, struct image_params *imgp,
536 struct label *execlabel);
537 int (*mpo_check_vnode_getacl)(struct ucred *cred,
538 struct vnode *vp, struct label *label, acl_type_t type);
539 int (*mpo_check_vnode_getextattr)(struct ucred *cred,
540 struct vnode *vp, struct label *label, int attrnamespace,
541 const char *name, struct uio *uio);
542 void (*_mpo_placeholder24)(void);
543 int (*mpo_check_vnode_link)(struct ucred *cred, struct vnode *dvp,
544 struct label *dlabel, struct vnode *vp,
545 struct label *label, struct componentname *cnp);
546 int (*mpo_check_vnode_listextattr)(struct ucred *cred,
547 struct vnode *vp, struct label *label, int attrnamespace);
548 int (*mpo_check_vnode_lookup)(struct ucred *cred,
549 struct vnode *dvp, struct label *dlabel,
550 struct componentname *cnp);
551 int (*mpo_check_vnode_mmap)(struct ucred *cred, struct vnode *vp,
552 struct label *label, int prot, int flags);
553 void (*mpo_check_vnode_mmap_downgrade)(struct ucred *cred,
554 struct vnode *vp, struct label *label, int *prot);
555 int (*mpo_check_vnode_mprotect)(struct ucred *cred,
556 struct vnode *vp, struct label *label, int prot);
557 int (*mpo_check_vnode_open)(struct ucred *cred, struct vnode *vp,
558 struct label *label, int acc_mode);
559 int (*mpo_check_vnode_poll)(struct ucred *active_cred,
560 struct ucred *file_cred, struct vnode *vp,
561 struct label *label);
562 int (*mpo_check_vnode_read)(struct ucred *active_cred,
563 struct ucred *file_cred, struct vnode *vp,
564 struct label *label);
565 int (*mpo_check_vnode_readdir)(struct ucred *cred,
566 struct vnode *dvp, struct label *dlabel);
567 int (*mpo_check_vnode_readlink)(struct ucred *cred,
568 struct vnode *vp, struct label *label);
569 int (*mpo_check_vnode_relabel)(struct ucred *cred,
570 struct vnode *vp, struct label *vnodelabel,
571 struct label *newlabel);
572 int (*mpo_check_vnode_rename_from)(struct ucred *cred,
573 struct vnode *dvp, struct label *dlabel, struct vnode *vp,
574 struct label *label, struct componentname *cnp);
575 int (*mpo_check_vnode_rename_to)(struct ucred *cred,
576 struct vnode *dvp, struct label *dlabel, struct vnode *vp,
577 struct label *label, int samedir,
578 struct componentname *cnp);
579 int (*mpo_check_vnode_revoke)(struct ucred *cred,
580 struct vnode *vp, struct label *label);
581 int (*mpo_check_vnode_setacl)(struct ucred *cred,
582 struct vnode *vp, struct label *label, acl_type_t type,
583 struct acl *acl);
584 int (*mpo_check_vnode_setextattr)(struct ucred *cred,
585 struct vnode *vp, struct label *label, int attrnamespace,
586 const char *name, struct uio *uio);
587 int (*mpo_check_vnode_setflags)(struct ucred *cred,
588 struct vnode *vp, struct label *label, u_long flags);
589 int (*mpo_check_vnode_setmode)(struct ucred *cred,
590 struct vnode *vp, struct label *label, mode_t mode);
591 int (*mpo_check_vnode_setowner)(struct ucred *cred,
592 struct vnode *vp, struct label *label, uid_t uid,
593 gid_t gid);
594 int (*mpo_check_vnode_setutimes)(struct ucred *cred,
595 struct vnode *vp, struct label *label,
596 struct timespec atime, struct timespec mtime);
597 int (*mpo_check_vnode_stat)(struct ucred *active_cred,
598 struct ucred *file_cred, struct vnode *vp,
599 struct label *label);
600 int (*mpo_check_vnode_write)(struct ucred *active_cred,
601 struct ucred *file_cred, struct vnode *vp,
602 struct label *label);
603 };
604
605 /*
606 * struct mac_policy_conf is the registration structure for policies, and is
607 * provided to the MAC Framework using MAC_POLICY_SET() to invoke a SYSINIT
608 * to register the policy. In general, the fields are immutable, with the
609 * exception of the "security field", run-time flags, and policy list entry,
610 * which are managed by the MAC Framework. Be careful when modifying this
611 * structure, as its layout is statically compiled into all policies.
612 */
613 struct mac_policy_conf {
614 char *mpc_name; /* policy name */
615 char *mpc_fullname; /* policy full name */
616 struct mac_policy_ops *mpc_ops; /* policy operations */
617 int mpc_loadtime_flags; /* flags */
618 int *mpc_field_off; /* security field */
619 int mpc_runtime_flags; /* flags */
620 LIST_ENTRY(mac_policy_conf) mpc_list; /* global list */
621 };
622
623 /* Flags for the mpc_loadtime_flags field. */
624 #define MPC_LOADTIME_FLAG_NOTLATE 0x00000001
625 #define MPC_LOADTIME_FLAG_UNLOADOK 0x00000002
626 #define MPC_LOADTIME_FLAG_LABELMBUFS 0x00000004
627
628 /* Flags for the mpc_runtime_flags field. */
629 #define MPC_RUNTIME_FLAG_REGISTERED 0x00000001
630
631 #define MAC_POLICY_SET(mpops, mpname, mpfullname, mpflags, privdata_wanted) \
632 static struct mac_policy_conf mpname##_mac_policy_conf = { \
633 #mpname, \
634 mpfullname, \
635 mpops, \
636 mpflags, \
637 privdata_wanted, \
638 0, \
639 }; \
640 static moduledata_t mpname##_mod = { \
641 #mpname, \
642 mac_policy_modevent, \
643 &mpname##_mac_policy_conf \
644 }; \
645 MODULE_DEPEND(mpname, kernel_mac_support, 2, 2, 2); \
646 DECLARE_MODULE(mpname, mpname##_mod, SI_SUB_MAC_POLICY, \
647 SI_ORDER_MIDDLE)
648
649 int mac_policy_modevent(module_t mod, int type, void *data);
650
651 #define LABEL_TO_SLOT(l, s) (l)->l_perpolicy[s]
652
653 #endif /* !_SYS_MAC_POLICY_H_ */
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