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