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