1 /*-
2 * Copyright (c) 1999-2002, 2007-2011 Robert N. M. Watson
3 * Copyright (c) 2001-2005 Networks Associates Technology, Inc.
4 * Copyright (c) 2005-2006 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 * This software was developed at the University of Cambridge Computer
18 * Laboratory with support from a grant from Google, Inc.
19 *
20 * Redistribution and use in source and binary forms, with or without
21 * modification, are permitted provided that the following conditions
22 * are met:
23 * 1. Redistributions of source code must retain the above copyright
24 * notice, this list of conditions and the following disclaimer.
25 * 2. Redistributions in binary form must reproduce the above copyright
26 * notice, this list of conditions and the following disclaimer in the
27 * documentation and/or other materials provided with the distribution.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
32 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39 * SUCH DAMAGE.
40 */
41
42 /*
43 * Kernel interface for Mandatory Access Control -- how kernel services
44 * interact with the TrustedBSD MAC Framework.
45 */
46
47 #ifndef _SECURITY_MAC_MAC_FRAMEWORK_H_
48 #define _SECURITY_MAC_MAC_FRAMEWORK_H_
49
50 #ifndef _KERNEL
51 #error "no user-serviceable parts inside"
52 #endif
53
54 struct auditinfo;
55 struct auditinfo_addr;
56 struct bpf_d;
57 struct cdev;
58 struct componentname;
59 struct devfs_dirent;
60 struct ifnet;
61 struct ifreq;
62 struct image_params;
63 struct inpcb;
64 struct ip6q;
65 struct ipq;
66 struct kdb_dbbe;
67 struct ksem;
68 struct label;
69 struct m_tag;
70 struct mac;
71 struct mbuf;
72 struct mount;
73 struct msg;
74 struct msqid_kernel;
75 struct pipepair;
76 struct prison;
77 struct proc;
78 struct semid_kernel;
79 struct shmfd;
80 struct shmid_kernel;
81 struct sockaddr;
82 struct socket;
83 struct sysctl_oid;
84 struct sysctl_req;
85 struct thread;
86 struct timespec;
87 struct ucred;
88 struct vattr;
89 struct vfsoptlist;
90 struct vnode;
91 struct vop_setlabel_args;
92
93 struct in_addr;
94 struct in6_addr;
95
96 #include <sys/acl.h> /* XXX acl_type_t */
97 #include <sys/types.h> /* accmode_t */
98
99 #include <ddb/ddb.h> /* db_expr_t */
100
101 /*
102 * Entry points to the TrustedBSD MAC Framework from the remainder of the
103 * kernel: entry points are named based on a principle object type and an
104 * action relating to it. They are sorted alphabetically first by object
105 * type and then action. In some situations, the principle object type is
106 * obvious, and in other cases, less so as multiple objects may be inolved
107 * in the operation.
108 */
109 int mac_bpfdesc_check_receive(struct bpf_d *d, struct ifnet *ifp);
110 void mac_bpfdesc_create(struct ucred *cred, struct bpf_d *d);
111 void mac_bpfdesc_create_mbuf(struct bpf_d *d, struct mbuf *m);
112 void mac_bpfdesc_destroy(struct bpf_d *);
113 void mac_bpfdesc_init(struct bpf_d *);
114
115 void mac_cred_associate_nfsd(struct ucred *cred);
116 int mac_cred_check_setaudit(struct ucred *cred, struct auditinfo *ai);
117 int mac_cred_check_setaudit_addr(struct ucred *cred,
118 struct auditinfo_addr *aia);
119 int mac_cred_check_setauid(struct ucred *cred, uid_t auid);
120 void mac_cred_setcred_enter(void);
121 int mac_cred_check_setcred(u_int flags, const struct ucred *old_cred,
122 struct ucred *new_cred);
123 void mac_cred_setcred_exit(void);
124 int mac_cred_check_setegid(struct ucred *cred, gid_t egid);
125 int mac_cred_check_seteuid(struct ucred *cred, uid_t euid);
126 int mac_cred_check_setgid(struct ucred *cred, gid_t gid);
127 int mac_cred_check_setgroups(struct ucred *cred, int ngroups,
128 gid_t *gidset);
129 int mac_cred_check_setregid(struct ucred *cred, gid_t rgid, gid_t egid);
130 int mac_cred_check_setresgid(struct ucred *cred, gid_t rgid, gid_t egid,
131 gid_t sgid);
132 int mac_cred_check_setresuid(struct ucred *cred, uid_t ruid, uid_t euid,
133 uid_t suid);
134 int mac_cred_check_setreuid(struct ucred *cred, uid_t ruid, uid_t euid);
135 int mac_cred_check_setuid(struct ucred *cred, uid_t uid);
136 int mac_cred_check_visible(struct ucred *cr1, struct ucred *cr2);
137 void mac_cred_copy(struct ucred *cr1, struct ucred *cr2);
138 void mac_cred_create_init(struct ucred *cred);
139 void mac_cred_create_kproc0(struct ucred *cred);
140 void mac_cred_destroy(struct ucred *);
141 void mac_cred_init(struct ucred *);
142
143 int mac_ddb_command_register(struct db_command_table *table,
144 struct db_command *cmd);
145 int mac_ddb_command_exec(struct db_command *cmd, db_expr_t addr,
146 bool have_addr, db_expr_t count, char *modif);
147
148 void mac_devfs_create_device(struct ucred *cred, struct mount *mp,
149 struct cdev *dev, struct devfs_dirent *de);
150 void mac_devfs_create_directory(struct mount *mp, char *dirname,
151 int dirnamelen, struct devfs_dirent *de);
152 void mac_devfs_create_symlink(struct ucred *cred, struct mount *mp,
153 struct devfs_dirent *dd, struct devfs_dirent *de);
154 void mac_devfs_destroy(struct devfs_dirent *);
155 void mac_devfs_init(struct devfs_dirent *);
156 void mac_devfs_update(struct mount *mp, struct devfs_dirent *de,
157 struct vnode *vp);
158 void mac_devfs_vnode_associate(struct mount *mp, struct devfs_dirent *de,
159 struct vnode *vp);
160
161 int mac_ifnet_check_transmit_impl(struct ifnet *ifp, struct mbuf *m);
162 #ifdef MAC
163 extern bool mac_ifnet_check_transmit_fp_flag;
164 #else
165 #define mac_ifnet_check_transmit_fp_flag false
166 #endif
167 #define mac_ifnet_check_transmit_enabled() __predict_false(mac_ifnet_check_transmit_fp_flag)
168 static inline int
mac_ifnet_check_transmit(struct ifnet * ifp,struct mbuf * m)169 mac_ifnet_check_transmit(struct ifnet *ifp, struct mbuf *m)
170 {
171
172 if (mac_ifnet_check_transmit_enabled())
173 return (mac_ifnet_check_transmit_impl(ifp, m));
174 return (0);
175 }
176
177 void mac_ifnet_create(struct ifnet *ifp);
178
179 void mac_ifnet_create_mbuf_impl(struct ifnet *ifp, struct mbuf *m);
180 #ifdef MAC
181 extern bool mac_ifnet_create_mbuf_fp_flag;
182 #else
183 #define mac_ifnet_create_mbuf_fp_flag false
184 #endif
185 #define mac_ifnet_create_mbuf_enabled() __predict_false(mac_ifnet_create_mbuf_fp_flag)
186 static inline void
mac_ifnet_create_mbuf(struct ifnet * ifp,struct mbuf * m)187 mac_ifnet_create_mbuf(struct ifnet *ifp, struct mbuf *m)
188 {
189
190 if (mac_ifnet_create_mbuf_enabled())
191 mac_ifnet_create_mbuf_impl(ifp, m);
192 }
193
194 void mac_ifnet_destroy(struct ifnet *);
195 void mac_ifnet_init(struct ifnet *);
196 int mac_ifnet_ioctl_get(struct ucred *cred, struct ifreq *ifr,
197 struct ifnet *ifp);
198 int mac_ifnet_ioctl_set(struct ucred *cred, struct ifreq *ifr,
199 struct ifnet *ifp);
200
201 /* Check if the IP address is allowed for the interface. */
202 int mac_inet_check_add_addr(struct ucred *cred,
203 const struct in_addr *ia, struct ifnet *ifp);
204 int mac_inet6_check_add_addr(struct ucred *cred,
205 const struct in6_addr *ia6, struct ifnet *ifp);
206
207 int mac_inpcb_check_deliver(struct inpcb *inp, struct mbuf *m);
208 int mac_inpcb_check_visible(struct ucred *cred, struct inpcb *inp);
209 void mac_inpcb_create(struct socket *so, struct inpcb *inp);
210 void mac_inpcb_create_mbuf(struct inpcb *inp, struct mbuf *m);
211 void mac_inpcb_destroy(struct inpcb *);
212 int mac_inpcb_init(struct inpcb *, int);
213 void mac_inpcb_sosetlabel(struct socket *so, struct inpcb *inp);
214
215 void mac_ip6q_create(struct mbuf *m, struct ip6q *q6);
216 void mac_ip6q_destroy(struct ip6q *q6);
217 int mac_ip6q_init(struct ip6q *q6, int);
218 int mac_ip6q_match(struct mbuf *m, struct ip6q *q6);
219 void mac_ip6q_reassemble(struct ip6q *q6, struct mbuf *m);
220 void mac_ip6q_update(struct mbuf *m, struct ip6q *q6);
221
222 void mac_ipq_create(struct mbuf *m, struct ipq *q);
223 void mac_ipq_destroy(struct ipq *q);
224 int mac_ipq_init(struct ipq *q, int);
225 int mac_ipq_match(struct mbuf *m, struct ipq *q);
226 void mac_ipq_reassemble(struct ipq *q, struct mbuf *m);
227 void mac_ipq_update(struct mbuf *m, struct ipq *q);
228
229 int mac_kdb_check_backend(struct kdb_dbbe *be);
230 int mac_kdb_grant_backend(struct kdb_dbbe *be);
231
232 int mac_kenv_check_dump(struct ucred *cred);
233 int mac_kenv_check_get(struct ucred *cred, char *name);
234 int mac_kenv_check_set(struct ucred *cred, char *name, char *value);
235 int mac_kenv_check_unset(struct ucred *cred, char *name);
236
237 int mac_kld_check_load(struct ucred *cred, struct vnode *vp);
238 int mac_kld_check_stat(struct ucred *cred);
239
240 void mac_mbuf_copy(struct mbuf *, struct mbuf *);
241 int mac_mbuf_init(struct mbuf *, int);
242
243 void mac_mbuf_tag_copy(struct m_tag *, struct m_tag *);
244 void mac_mbuf_tag_destroy(struct m_tag *);
245 int mac_mbuf_tag_init(struct m_tag *, int);
246
247 int mac_mount_check_stat(struct ucred *cred, struct mount *mp);
248 void mac_mount_create(struct ucred *cred, struct mount *mp);
249 void mac_mount_destroy(struct mount *);
250 void mac_mount_init(struct mount *);
251
252 void mac_netinet_arp_send(struct ifnet *ifp, struct mbuf *m);
253 void mac_netinet_firewall_reply(struct mbuf *mrecv, struct mbuf *msend);
254 void mac_netinet_firewall_send(struct mbuf *m);
255 void mac_netinet_fragment(struct mbuf *m, struct mbuf *frag);
256 void mac_netinet_icmp_reply(struct mbuf *mrecv, struct mbuf *msend);
257 void mac_netinet_icmp_replyinplace(struct mbuf *m);
258 void mac_netinet_igmp_send(struct ifnet *ifp, struct mbuf *m);
259 void mac_netinet_tcp_reply(struct mbuf *m);
260
261 void mac_netinet6_nd6_send(struct ifnet *ifp, struct mbuf *m);
262
263 int mac_pipe_check_ioctl(struct ucred *cred, struct pipepair *pp,
264 unsigned long cmd, void *data);
265 int mac_pipe_check_poll_impl(struct ucred *cred, struct pipepair *pp);
266 #ifdef MAC
267 extern bool mac_pipe_check_poll_fp_flag;
268 #else
269 #define mac_pipe_check_poll_fp_flag false
270 #endif
271 #define mac_pipe_check_poll_enabled() __predict_false(mac_pipe_check_poll_fp_flag)
272 static inline int
mac_pipe_check_poll(struct ucred * cred,struct pipepair * pp)273 mac_pipe_check_poll(struct ucred *cred, struct pipepair *pp)
274 {
275
276 if (mac_pipe_check_poll_enabled())
277 return (mac_pipe_check_poll_impl(cred, pp));
278 return (0);
279 }
280
281 #ifdef MAC
282 extern bool mac_pipe_check_stat_fp_flag;
283 #else
284 #define mac_pipe_check_stat_fp_flag false
285 #endif
286 #define mac_pipe_check_stat_enabled() __predict_false(mac_pipe_check_stat_fp_flag)
287 int mac_pipe_check_stat(struct ucred *cred, struct pipepair *pp);
288 int mac_pipe_check_read_impl(struct ucred *cred, struct pipepair *pp);
289 #ifdef MAC
290 extern bool mac_pipe_check_read_fp_flag;
291 #else
292 #define mac_pipe_check_read_fp_flag false
293 #endif
294 #define mac_pipe_check_read_enabled() __predict_false(mac_pipe_check_read_fp_flag)
295 static inline int
mac_pipe_check_read(struct ucred * cred,struct pipepair * pp)296 mac_pipe_check_read(struct ucred *cred, struct pipepair *pp)
297 {
298
299 if (mac_pipe_check_read_enabled())
300 return (mac_pipe_check_read_impl(cred, pp));
301 return (0);
302 }
303
304 int mac_pipe_check_write(struct ucred *cred, struct pipepair *pp);
305 void mac_pipe_create(struct ucred *cred, struct pipepair *pp);
306 void mac_pipe_destroy(struct pipepair *);
307 void mac_pipe_init(struct pipepair *);
308 int mac_pipe_label_set(struct ucred *cred, struct pipepair *pp,
309 struct label *label);
310
311 int mac_posixsem_check_getvalue(struct ucred *active_cred,
312 struct ucred *file_cred, struct ksem *ks);
313 int mac_posixsem_check_open(struct ucred *cred, struct ksem *ks);
314 int mac_posixsem_check_post(struct ucred *active_cred,
315 struct ucred *file_cred, struct ksem *ks);
316 int mac_posixsem_check_setmode(struct ucred *cred, struct ksem *ks,
317 mode_t mode);
318 int mac_posixsem_check_setowner(struct ucred *cred, struct ksem *ks,
319 uid_t uid, gid_t gid);
320 int mac_posixsem_check_stat(struct ucred *active_cred,
321 struct ucred *file_cred, struct ksem *ks);
322 int mac_posixsem_check_unlink(struct ucred *cred, struct ksem *ks);
323 int mac_posixsem_check_wait(struct ucred *active_cred,
324 struct ucred *file_cred, struct ksem *ks);
325 void mac_posixsem_create(struct ucred *cred, struct ksem *ks);
326 void mac_posixsem_destroy(struct ksem *);
327 void mac_posixsem_init(struct ksem *);
328
329 int mac_posixshm_check_create(struct ucred *cred, const char *path);
330 int mac_posixshm_check_mmap(struct ucred *cred, struct shmfd *shmfd,
331 int prot, int flags);
332 int mac_posixshm_check_open(struct ucred *cred, struct shmfd *shmfd,
333 accmode_t accmode);
334 int mac_posixshm_check_read(struct ucred *active_cred,
335 struct ucred *file_cred, struct shmfd *shmfd);
336 int mac_posixshm_check_setmode(struct ucred *cred, struct shmfd *shmfd,
337 mode_t mode);
338 int mac_posixshm_check_setowner(struct ucred *cred, struct shmfd *shmfd,
339 uid_t uid, gid_t gid);
340 int mac_posixshm_check_stat(struct ucred *active_cred,
341 struct ucred *file_cred, struct shmfd *shmfd);
342 int mac_posixshm_check_truncate(struct ucred *active_cred,
343 struct ucred *file_cred, struct shmfd *shmfd);
344 int mac_posixshm_check_unlink(struct ucred *cred, struct shmfd *shmfd);
345 int mac_posixshm_check_write(struct ucred *active_cred,
346 struct ucred *file_cred, struct shmfd *shmfd);
347 void mac_posixshm_create(struct ucred *cred, struct shmfd *shmfd);
348 void mac_posixshm_destroy(struct shmfd *);
349 void mac_posixshm_init(struct shmfd *);
350
351 int mac_prison_init(struct prison *pr, int flag);
352 void mac_prison_relabel(struct ucred *cred, struct prison *pr,
353 struct label *newlabel);
354 void mac_prison_destroy(struct prison *pr);
355 int mac_prison_check_attach(struct ucred *cred, struct prison *pr);
356 int mac_prison_check_create(struct ucred *cred, struct vfsoptlist *opts,
357 int flags);
358 int mac_prison_check_get(struct ucred *cred, struct prison *pr,
359 struct vfsoptlist *opts, int flags);
360 int mac_prison_check_set(struct ucred *cred, struct prison *pr,
361 struct vfsoptlist *opts, int flags);
362 int mac_prison_check_remove(struct ucred *cred, struct prison *pr);
363 void mac_prison_created(struct ucred *cred, struct prison *pr);
364 void mac_prison_attached(struct ucred *cred, struct prison *pr,
365 struct proc *p);
366
367 int mac_priv_check_impl(struct ucred *cred, int priv);
368 #ifdef MAC
369 extern bool mac_priv_check_fp_flag;
370 #else
371 #define mac_priv_check_fp_flag false
372 #endif
373 #define mac_priv_check_enabled() __predict_false(mac_priv_check_fp_flag)
374 static inline int
mac_priv_check(struct ucred * cred,int priv)375 mac_priv_check(struct ucred *cred, int priv)
376 {
377
378 if (mac_priv_check_enabled())
379 return (mac_priv_check_impl(cred, priv));
380 return (0);
381 }
382
383 int mac_priv_grant_impl(struct ucred *cred, int priv);
384 #ifdef MAC
385 extern bool mac_priv_grant_fp_flag;
386 #else
387 #define mac_priv_grant_fp_flag false
388 #endif
389 #define mac_priv_grant_enabled() __predict_false(mac_priv_grant_fp_flag)
390 static inline int
mac_priv_grant(struct ucred * cred,int priv)391 mac_priv_grant(struct ucred *cred, int priv)
392 {
393
394 if (mac_priv_grant_enabled())
395 return (mac_priv_grant_impl(cred, priv));
396 return (EPERM);
397 }
398
399 int mac_proc_check_debug(struct ucred *cred, struct proc *p);
400 int mac_proc_check_sched(struct ucred *cred, struct proc *p);
401 int mac_proc_check_signal(struct ucred *cred, struct proc *p,
402 int signum);
403 int mac_proc_check_wait(struct ucred *cred, struct proc *p);
404 void mac_proc_destroy(struct proc *);
405 void mac_proc_init(struct proc *);
406 void mac_proc_vm_revoke(struct thread *td);
407 int mac_execve_enter(struct image_params *imgp, struct mac *mac_p);
408 void mac_execve_exit(struct image_params *imgp);
409 void mac_execve_interpreter_enter(struct vnode *interpvp,
410 struct label **interplabel);
411 void mac_execve_interpreter_exit(struct label *interpvplabel);
412
413 int mac_socket_check_accept(struct ucred *cred, struct socket *so);
414 int mac_socket_check_bind(struct ucred *cred, struct socket *so,
415 struct sockaddr *sa);
416 int mac_socket_check_connect(struct ucred *cred, struct socket *so,
417 struct sockaddr *sa);
418 int mac_socket_check_create(struct ucred *cred, int domain, int type,
419 int proto);
420 int mac_socket_check_deliver(struct socket *so, struct mbuf *m);
421 int mac_socket_check_listen(struct ucred *cred, struct socket *so);
422 int mac_socket_check_poll(struct ucred *cred, struct socket *so);
423 int mac_socket_check_receive(struct ucred *cred, struct socket *so);
424 int mac_socket_check_send(struct ucred *cred, struct socket *so);
425 int mac_socket_check_stat(struct ucred *cred, struct socket *so);
426 int mac_socket_check_visible(struct ucred *cred, struct socket *so);
427 void mac_socket_create_mbuf(struct socket *so, struct mbuf *m);
428 void mac_socket_create(struct ucred *cred, struct socket *so);
429 void mac_socket_destroy(struct socket *);
430 int mac_socket_init(struct socket *, int);
431 void mac_socket_newconn(struct socket *oldso, struct socket *newso);
432 int mac_getsockopt_label(struct ucred *cred, struct socket *so,
433 const struct mac *extmac);
434 int mac_getsockopt_peerlabel(struct ucred *cred, struct socket *so,
435 const struct mac *extmac);
436 int mac_setsockopt_label(struct ucred *cred, struct socket *so,
437 const struct mac *extmac);
438
439 void mac_socketpeer_set_from_mbuf(struct mbuf *m, struct socket *so);
440 void mac_socketpeer_set_from_socket(struct socket *oldso,
441 struct socket *newso);
442
443 void mac_syncache_create(struct label *l, struct inpcb *inp);
444 void mac_syncache_create_mbuf(struct label *l, struct mbuf *m);
445 void mac_syncache_destroy(struct label **l);
446 int mac_syncache_init(struct label **l);
447
448 int mac_system_check_acct(struct ucred *cred, struct vnode *vp);
449 int mac_system_check_audit(struct ucred *cred, void *record, int length);
450 int mac_system_check_auditctl(struct ucred *cred, struct vnode *vp);
451 int mac_system_check_auditon(struct ucred *cred, int cmd);
452 int mac_system_check_reboot(struct ucred *cred, int howto);
453 int mac_system_check_swapon(struct ucred *cred, struct vnode *vp);
454 int mac_system_check_swapoff(struct ucred *cred, struct vnode *vp);
455 int mac_system_check_sysctl(struct ucred *cred, struct sysctl_oid *oidp,
456 void *arg1, int arg2, struct sysctl_req *req);
457
458 void mac_sysvmsg_cleanup(struct msg *msgptr);
459 void mac_sysvmsg_create(struct ucred *cred, struct msqid_kernel *msqkptr,
460 struct msg *msgptr);
461 void mac_sysvmsg_destroy(struct msg *);
462 void mac_sysvmsg_init(struct msg *);
463
464 int mac_sysvmsq_check_msgmsq(struct ucred *cred, struct msg *msgptr,
465 struct msqid_kernel *msqkptr);
466 int mac_sysvmsq_check_msgrcv(struct ucred *cred, struct msg *msgptr);
467 int mac_sysvmsq_check_msgrmid(struct ucred *cred, struct msg *msgptr);
468 int mac_sysvmsq_check_msqctl(struct ucred *cred,
469 struct msqid_kernel *msqkptr, int cmd);
470 int mac_sysvmsq_check_msqget(struct ucred *cred,
471 struct msqid_kernel *msqkptr);
472 int mac_sysvmsq_check_msqrcv(struct ucred *cred,
473 struct msqid_kernel *msqkptr);
474 int mac_sysvmsq_check_msqsnd(struct ucred *cred,
475 struct msqid_kernel *msqkptr);
476 void mac_sysvmsq_cleanup(struct msqid_kernel *msqkptr);
477 void mac_sysvmsq_create(struct ucred *cred, struct msqid_kernel *msqkptr);
478 void mac_sysvmsq_destroy(struct msqid_kernel *);
479 void mac_sysvmsq_init(struct msqid_kernel *);
480
481 int mac_sysvsem_check_semctl(struct ucred *cred,
482 struct semid_kernel *semakptr, int cmd);
483 int mac_sysvsem_check_semget(struct ucred *cred,
484 struct semid_kernel *semakptr);
485 int mac_sysvsem_check_semop(struct ucred *cred,
486 struct semid_kernel *semakptr, size_t accesstype);
487 void mac_sysvsem_cleanup(struct semid_kernel *semakptr);
488 void mac_sysvsem_create(struct ucred *cred,
489 struct semid_kernel *semakptr);
490 void mac_sysvsem_destroy(struct semid_kernel *);
491 void mac_sysvsem_init(struct semid_kernel *);
492
493 int mac_sysvshm_check_shmat(struct ucred *cred,
494 struct shmid_kernel *shmsegptr, int shmflg);
495 int mac_sysvshm_check_shmctl(struct ucred *cred,
496 struct shmid_kernel *shmsegptr, int cmd);
497 int mac_sysvshm_check_shmdt(struct ucred *cred,
498 struct shmid_kernel *shmsegptr);
499 int mac_sysvshm_check_shmget(struct ucred *cred,
500 struct shmid_kernel *shmsegptr, int shmflg);
501 void mac_sysvshm_cleanup(struct shmid_kernel *shmsegptr);
502 void mac_sysvshm_create(struct ucred *cred,
503 struct shmid_kernel *shmsegptr);
504 void mac_sysvshm_destroy(struct shmid_kernel *);
505 void mac_sysvshm_init(struct shmid_kernel *);
506
507 void mac_thread_userret(struct thread *td);
508
509 #if defined(MAC) && defined(INVARIANTS)
510 void mac_vnode_assert_locked(struct vnode *vp, const char *func);
511 #else
512 #define mac_vnode_assert_locked(vp, func) do { } while (0)
513 #endif
514
515 int mac_vnode_associate_extattr(struct mount *mp, struct vnode *vp);
516 void mac_vnode_associate_singlelabel(struct mount *mp, struct vnode *vp);
517 int mac_vnode_check_access_impl(struct ucred *cred, struct vnode *dvp,
518 accmode_t accmode);
519 extern bool mac_vnode_check_access_fp_flag;
520 #define mac_vnode_check_access_enabled() __predict_false(mac_vnode_check_access_fp_flag)
521 static inline int
mac_vnode_check_access(struct ucred * cred,struct vnode * dvp,accmode_t accmode)522 mac_vnode_check_access(struct ucred *cred, struct vnode *dvp,
523 accmode_t accmode)
524 {
525
526 mac_vnode_assert_locked(dvp, "mac_vnode_check_access");
527 if (mac_vnode_check_access_enabled())
528 return (mac_vnode_check_access_impl(cred, dvp, accmode));
529 return (0);
530 }
531 int mac_vnode_check_chdir(struct ucred *cred, struct vnode *dvp);
532 int mac_vnode_check_chroot(struct ucred *cred, struct vnode *dvp);
533 int mac_vnode_check_create(struct ucred *cred, struct vnode *dvp,
534 struct componentname *cnp, struct vattr *vap);
535 int mac_vnode_check_deleteacl(struct ucred *cred, struct vnode *vp,
536 acl_type_t type);
537 int mac_vnode_check_deleteextattr(struct ucred *cred, struct vnode *vp,
538 int attrnamespace, const char *name);
539 int mac_vnode_check_exec(struct ucred *cred, struct vnode *vp,
540 struct image_params *imgp);
541 int mac_vnode_check_getacl(struct ucred *cred, struct vnode *vp,
542 acl_type_t type);
543 int mac_vnode_check_getextattr(struct ucred *cred, struct vnode *vp,
544 int attrnamespace, const char *name);
545 int mac_vnode_check_link(struct ucred *cred, struct vnode *dvp,
546 struct vnode *vp, struct componentname *cnp);
547 int mac_vnode_check_listextattr(struct ucred *cred, struct vnode *vp,
548 int attrnamespace);
549
550 int mac_vnode_check_lookup_impl(struct ucred *cred, struct vnode *dvp,
551 struct componentname *cnp);
552 #ifdef MAC
553 extern bool mac_vnode_check_lookup_fp_flag;
554 #else
555 #define mac_vnode_check_lookup_fp_flag false
556 #endif
557 #define mac_vnode_check_lookup_enabled() __predict_false(mac_vnode_check_lookup_fp_flag)
558 static inline int
mac_vnode_check_lookup(struct ucred * cred,struct vnode * dvp,struct componentname * cnp)559 mac_vnode_check_lookup(struct ucred *cred, struct vnode *dvp,
560 struct componentname *cnp)
561 {
562
563 mac_vnode_assert_locked(dvp, "mac_vnode_check_lookup");
564 if (mac_vnode_check_lookup_enabled())
565 return (mac_vnode_check_lookup_impl(cred, dvp, cnp));
566 return (0);
567 }
568
569 int mac_vnode_check_mmap_impl(struct ucred *cred, struct vnode *vp, int prot,
570 int flags);
571 #ifdef MAC
572 extern bool mac_vnode_check_mmap_fp_flag;
573 #else
574 #define mac_vnode_check_mmap_fp_flag false
575 #endif
576 #define mac_vnode_check_mmap_enabled() __predict_false(mac_vnode_check_mmap_fp_flag)
577 static inline int
mac_vnode_check_mmap(struct ucred * cred,struct vnode * vp,int prot,int flags)578 mac_vnode_check_mmap(struct ucred *cred, struct vnode *vp, int prot,
579 int flags)
580 {
581
582 mac_vnode_assert_locked(vp, "mac_vnode_check_mmap");
583 if (mac_vnode_check_mmap_enabled())
584 return (mac_vnode_check_mmap_impl(cred, vp, prot, flags));
585 return (0);
586 }
587
588 int mac_vnode_check_open_impl(struct ucred *cred, struct vnode *vp,
589 accmode_t accmode);
590 #ifdef MAC
591 extern bool mac_vnode_check_open_fp_flag;
592 #else
593 #define mac_vnode_check_open_fp_flag false
594 #endif
595 #define mac_vnode_check_open_enabled() __predict_false(mac_vnode_check_open_fp_flag)
596 static inline int
mac_vnode_check_open(struct ucred * cred,struct vnode * vp,accmode_t accmode)597 mac_vnode_check_open(struct ucred *cred, struct vnode *vp,
598 accmode_t accmode)
599 {
600
601 mac_vnode_assert_locked(vp, "mac_vnode_check_open");
602 if (mac_vnode_check_open_enabled())
603 return (mac_vnode_check_open_impl(cred, vp, accmode));
604 return (0);
605 }
606
607 int mac_vnode_check_mprotect(struct ucred *cred, struct vnode *vp,
608 int prot);
609
610 #define mac_vnode_check_poll_enabled() __predict_false(mac_vnode_check_poll_fp_flag)
611 #ifdef MAC
612 extern bool mac_vnode_check_poll_fp_flag;
613 int mac_vnode_check_poll(struct ucred *active_cred,
614 struct ucred *file_cred, struct vnode *vp);
615 #else
616 #define mac_vnode_check_poll_fp_flag false
617 static inline int
mac_vnode_check_poll(struct ucred * active_cred,struct ucred * file_cred,struct vnode * vp)618 mac_vnode_check_poll(struct ucred *active_cred, struct ucred *file_cred,
619 struct vnode *vp)
620 {
621
622 return (0);
623 }
624 #endif
625 int mac_vnode_check_readdir(struct ucred *cred, struct vnode *vp);
626 int mac_vnode_check_readlink_impl(struct ucred *cred, struct vnode *dvp);
627 #ifdef MAC
628 extern bool mac_vnode_check_readlink_fp_flag;
629 #else
630 #define mac_vnode_check_readlink_fp_flag false
631 #endif
632 #define mac_vnode_check_readlink_enabled() __predict_false(mac_vnode_check_readlink_fp_flag)
633 static inline int
mac_vnode_check_readlink(struct ucred * cred,struct vnode * vp)634 mac_vnode_check_readlink(struct ucred *cred, struct vnode *vp)
635 {
636
637 mac_vnode_assert_locked(vp, "mac_vnode_check_readlink");
638 if (mac_vnode_check_readlink_enabled())
639 return (mac_vnode_check_readlink_impl(cred, vp));
640 return (0);
641 }
642 #define mac_vnode_check_rename_from_enabled() __predict_false(mac_vnode_check_rename_from_fp_flag)
643 #ifdef MAC
644 extern bool mac_vnode_check_rename_from_fp_flag;
645 #endif
646 int mac_vnode_check_rename_from(struct ucred *cred, struct vnode *dvp,
647 struct vnode *vp, struct componentname *cnp);
648 int mac_vnode_check_rename_to(struct ucred *cred, struct vnode *dvp,
649 struct vnode *vp, int samedir, struct componentname *cnp);
650 int mac_vnode_check_revoke(struct ucred *cred, struct vnode *vp);
651 int mac_vnode_check_setacl(struct ucred *cred, struct vnode *vp,
652 acl_type_t type, struct acl *acl);
653 int mac_vnode_check_setextattr(struct ucred *cred, struct vnode *vp,
654 int attrnamespace, const char *name);
655 int mac_vnode_check_setflags(struct ucred *cred, struct vnode *vp,
656 u_long flags);
657 int mac_vnode_check_setmode(struct ucred *cred, struct vnode *vp,
658 mode_t mode);
659 int mac_vnode_check_setowner(struct ucred *cred, struct vnode *vp,
660 uid_t uid, gid_t gid);
661 int mac_vnode_check_setutimes(struct ucred *cred, struct vnode *vp,
662 struct timespec atime, struct timespec mtime);
663
664 int mac_vnode_check_stat_impl(struct ucred *active_cred,
665 struct ucred *file_cred, struct vnode *vp);
666 #ifdef MAC
667 extern bool mac_vnode_check_stat_fp_flag;
668 #else
669 #define mac_vnode_check_stat_fp_flag false
670 #endif
671 #define mac_vnode_check_stat_enabled() __predict_false(mac_vnode_check_stat_fp_flag)
672 static inline int
mac_vnode_check_stat(struct ucred * active_cred,struct ucred * file_cred,struct vnode * vp)673 mac_vnode_check_stat(struct ucred *active_cred, struct ucred *file_cred,
674 struct vnode *vp)
675 {
676
677 mac_vnode_assert_locked(vp, "mac_vnode_check_stat");
678 if (mac_vnode_check_stat_enabled())
679 return (mac_vnode_check_stat_impl(active_cred, file_cred, vp));
680 return (0);
681 }
682
683 int mac_vnode_check_read_impl(struct ucred *active_cred,
684 struct ucred *file_cred, struct vnode *vp);
685 #ifdef MAC
686 extern bool mac_vnode_check_read_fp_flag;
687 #else
688 #define mac_vnode_check_read_fp_flag false
689 #endif
690 #define mac_vnode_check_read_enabled() __predict_false(mac_vnode_check_read_fp_flag)
691 static inline int
mac_vnode_check_read(struct ucred * active_cred,struct ucred * file_cred,struct vnode * vp)692 mac_vnode_check_read(struct ucred *active_cred, struct ucred *file_cred,
693 struct vnode *vp)
694 {
695
696 mac_vnode_assert_locked(vp, "mac_vnode_check_read");
697 if (mac_vnode_check_read_enabled())
698 return (mac_vnode_check_read_impl(active_cred, file_cred, vp));
699 return (0);
700 }
701
702 int mac_vnode_check_write_impl(struct ucred *active_cred,
703 struct ucred *file_cred, struct vnode *vp);
704 #ifdef MAC
705 extern bool mac_vnode_check_write_fp_flag;
706 #else
707 #define mac_vnode_check_write_fp_flag false
708 #endif
709 #define mac_vnode_check_write_enabled() __predict_false(mac_vnode_check_write_fp_flag)
710 static inline int
mac_vnode_check_write(struct ucred * active_cred,struct ucred * file_cred,struct vnode * vp)711 mac_vnode_check_write(struct ucred *active_cred, struct ucred *file_cred,
712 struct vnode *vp)
713 {
714
715 mac_vnode_assert_locked(vp, "mac_vnode_check_write");
716 if (mac_vnode_check_write_enabled())
717 return (mac_vnode_check_write_impl(active_cred, file_cred, vp));
718 return (0);
719 }
720
721 int mac_vnode_check_unlink(struct ucred *cred, struct vnode *dvp,
722 struct vnode *vp, struct componentname *cnp);
723 void mac_vnode_copy_label(struct label *, struct label *);
724 void mac_vnode_init(struct vnode *);
725 int mac_vnode_create_extattr(struct ucred *cred, struct mount *mp,
726 struct vnode *dvp, struct vnode *vp, struct componentname *cnp);
727 void mac_vnode_destroy(struct vnode *);
728 void mac_vnode_execve_transition(struct ucred *oldcred,
729 struct ucred *newcred, struct vnode *vp,
730 struct label *interpvplabel, struct image_params *imgp);
731 int mac_vnode_execve_will_transition(struct ucred *cred,
732 struct vnode *vp, struct label *interpvplabel,
733 struct image_params *imgp);
734 void mac_vnode_relabel(struct ucred *cred, struct vnode *vp,
735 struct label *newlabel);
736
737 /*
738 * Calls to help various file systems implement labeling functionality using
739 * their existing EA implementation.
740 */
741 int vop_stdsetlabel_ea(struct vop_setlabel_args *ap);
742
743 #endif /* !_SECURITY_MAC_MAC_FRAMEWORK_H_ */
744