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 vfsconf;
90 struct vfsoptlist;
91 struct vnode;
92 struct vop_setlabel_args;
93
94 struct in_addr;
95 struct in6_addr;
96
97 #include <sys/acl.h> /* XXX acl_type_t */
98 #include <sys/types.h> /* accmode_t */
99
100 #include <ddb/ddb.h> /* db_expr_t */
101
102 /*
103 * Entry points to the TrustedBSD MAC Framework from the remainder of the
104 * kernel: entry points are named based on a principle object type and an
105 * action relating to it. They are sorted alphabetically first by object
106 * type and then action. In some situations, the principle object type is
107 * obvious, and in other cases, less so as multiple objects may be inolved
108 * in the operation.
109 */
110 int mac_bpfdesc_check_receive(struct bpf_d *d, struct ifnet *ifp);
111 void mac_bpfdesc_create(struct ucred *cred, struct bpf_d *d);
112 void mac_bpfdesc_create_mbuf(struct bpf_d *d, struct mbuf *m);
113 void mac_bpfdesc_destroy(struct bpf_d *);
114 void mac_bpfdesc_init(struct bpf_d *);
115
116 void mac_cred_associate_nfsd(struct ucred *cred);
117 int mac_cred_check_setaudit(struct ucred *cred, struct auditinfo *ai);
118 int mac_cred_check_setaudit_addr(struct ucred *cred,
119 struct auditinfo_addr *aia);
120 int mac_cred_check_setauid(struct ucred *cred, uid_t auid);
121 void mac_cred_setcred_enter(void);
122 int mac_cred_check_setcred(u_int flags, const struct ucred *old_cred,
123 struct ucred *new_cred);
124 void mac_cred_setcred_exit(void);
125 int mac_cred_check_setegid(struct ucred *cred, gid_t egid);
126 int mac_cred_check_seteuid(struct ucred *cred, uid_t euid);
127 int mac_cred_check_setgid(struct ucred *cred, gid_t gid);
128 int mac_cred_check_setgroups(struct ucred *cred, int ngroups,
129 gid_t *gidset);
130 int mac_cred_check_setregid(struct ucred *cred, gid_t rgid, gid_t egid);
131 int mac_cred_check_setresgid(struct ucred *cred, gid_t rgid, gid_t egid,
132 gid_t sgid);
133 int mac_cred_check_setresuid(struct ucred *cred, uid_t ruid, uid_t euid,
134 uid_t suid);
135 int mac_cred_check_setreuid(struct ucred *cred, uid_t ruid, uid_t euid);
136 int mac_cred_check_setuid(struct ucred *cred, uid_t uid);
137 int mac_cred_check_visible(struct ucred *cr1, struct ucred *cr2);
138 void mac_cred_copy(struct ucred *cr1, struct ucred *cr2);
139 void mac_cred_create_init(struct ucred *cred);
140 void mac_cred_create_kproc0(struct ucred *cred);
141 void mac_cred_destroy(struct ucred *);
142 void mac_cred_init(struct ucred *);
143
144 int mac_ddb_command_register(struct db_command_table *table,
145 struct db_command *cmd);
146 int mac_ddb_command_exec(struct db_command *cmd, db_expr_t addr,
147 bool have_addr, db_expr_t count, char *modif);
148
149 void mac_devfs_create_device(struct ucred *cred, struct mount *mp,
150 struct cdev *dev, struct devfs_dirent *de);
151 void mac_devfs_create_directory(struct mount *mp, char *dirname,
152 int dirnamelen, struct devfs_dirent *de);
153 void mac_devfs_create_symlink(struct ucred *cred, struct mount *mp,
154 struct devfs_dirent *dd, struct devfs_dirent *de);
155 void mac_devfs_destroy(struct devfs_dirent *);
156 void mac_devfs_init(struct devfs_dirent *);
157 void mac_devfs_update(struct mount *mp, struct devfs_dirent *de,
158 struct vnode *vp);
159 void mac_devfs_vnode_associate(struct mount *mp, struct devfs_dirent *de,
160 struct vnode *vp);
161
162 int mac_ifnet_check_transmit_impl(struct ifnet *ifp, struct mbuf *m);
163 #ifdef MAC
164 extern bool mac_ifnet_check_transmit_fp_flag;
165 #else
166 #define mac_ifnet_check_transmit_fp_flag false
167 #endif
168 #define mac_ifnet_check_transmit_enabled() __predict_false(mac_ifnet_check_transmit_fp_flag)
169 static inline int
mac_ifnet_check_transmit(struct ifnet * ifp,struct mbuf * m)170 mac_ifnet_check_transmit(struct ifnet *ifp, struct mbuf *m)
171 {
172
173 if (mac_ifnet_check_transmit_enabled())
174 return (mac_ifnet_check_transmit_impl(ifp, m));
175 return (0);
176 }
177
178 void mac_ifnet_create(struct ifnet *ifp);
179
180 void mac_ifnet_create_mbuf_impl(struct ifnet *ifp, struct mbuf *m);
181 #ifdef MAC
182 extern bool mac_ifnet_create_mbuf_fp_flag;
183 #else
184 #define mac_ifnet_create_mbuf_fp_flag false
185 #endif
186 #define mac_ifnet_create_mbuf_enabled() __predict_false(mac_ifnet_create_mbuf_fp_flag)
187 static inline void
mac_ifnet_create_mbuf(struct ifnet * ifp,struct mbuf * m)188 mac_ifnet_create_mbuf(struct ifnet *ifp, struct mbuf *m)
189 {
190
191 if (mac_ifnet_create_mbuf_enabled())
192 mac_ifnet_create_mbuf_impl(ifp, m);
193 }
194
195 void mac_ifnet_destroy(struct ifnet *);
196 void mac_ifnet_init(struct ifnet *);
197 int mac_ifnet_ioctl_get(struct ucred *cred, struct ifreq *ifr,
198 struct ifnet *ifp);
199 int mac_ifnet_ioctl_set(struct ucred *cred, struct ifreq *ifr,
200 struct ifnet *ifp);
201
202 /* Check if the IP address is allowed for the interface. */
203 int mac_inet_check_add_addr(struct ucred *cred,
204 const struct in_addr *ia, struct ifnet *ifp);
205 int mac_inet6_check_add_addr(struct ucred *cred,
206 const struct in6_addr *ia6, struct ifnet *ifp);
207
208 int mac_inpcb_check_deliver(struct inpcb *inp, struct mbuf *m);
209 int mac_inpcb_check_visible(struct ucred *cred, struct inpcb *inp);
210 void mac_inpcb_create(struct socket *so, struct inpcb *inp);
211 void mac_inpcb_create_mbuf(struct inpcb *inp, struct mbuf *m);
212 void mac_inpcb_destroy(struct inpcb *);
213 int mac_inpcb_init(struct inpcb *, int);
214 void mac_inpcb_sosetlabel(struct socket *so, struct inpcb *inp);
215
216 void mac_ip6q_create(struct mbuf *m, struct ip6q *q6);
217 void mac_ip6q_destroy(struct ip6q *q6);
218 int mac_ip6q_init(struct ip6q *q6, int);
219 int mac_ip6q_match(struct mbuf *m, struct ip6q *q6);
220 void mac_ip6q_reassemble(struct ip6q *q6, struct mbuf *m);
221 void mac_ip6q_update(struct mbuf *m, struct ip6q *q6);
222
223 void mac_ipq_create(struct mbuf *m, struct ipq *q);
224 void mac_ipq_destroy(struct ipq *q);
225 int mac_ipq_init(struct ipq *q, int);
226 int mac_ipq_match(struct mbuf *m, struct ipq *q);
227 void mac_ipq_reassemble(struct ipq *q, struct mbuf *m);
228 void mac_ipq_update(struct mbuf *m, struct ipq *q);
229
230 int mac_kdb_check_backend(struct kdb_dbbe *be);
231 int mac_kdb_grant_backend(struct kdb_dbbe *be);
232
233 int mac_kenv_check_dump(struct ucred *cred);
234 int mac_kenv_check_get(struct ucred *cred, char *name);
235 int mac_kenv_check_set(struct ucred *cred, char *name, char *value);
236 int mac_kenv_check_unset(struct ucred *cred, char *name);
237
238 int mac_kld_check_load(struct ucred *cred, struct vnode *vp);
239 int mac_kld_check_stat(struct ucred *cred);
240
241 void mac_mbuf_copy(struct mbuf *, struct mbuf *);
242 int mac_mbuf_init(struct mbuf *, int);
243
244 void mac_mbuf_tag_copy(struct m_tag *, struct m_tag *);
245 void mac_mbuf_tag_destroy(struct m_tag *);
246 int mac_mbuf_tag_init(struct m_tag *, int);
247
248 int mac_mount_check_stat(struct ucred *cred, struct mount *mp);
249 void mac_mount_create(struct ucred *cred, struct mount *mp);
250 void mac_mount_destroy(struct mount *);
251 void mac_mount_init(struct mount *);
252 int mac_mount_check_mount(struct ucred *cred, struct vnode *vp,
253 struct vfsconf *, struct vfsoptlist **optlist, uint64_t fsflags);
254 int mac_mount_check_update(struct ucred *cred, struct mount *mp,
255 struct vfsoptlist **optlist, uint64_t fsflags);
256 int mac_mount_check_unmount(struct ucred *cred, struct mount *mp,
257 uint64_t flags);
258
259 void mac_netinet_arp_send(struct ifnet *ifp, struct mbuf *m);
260 void mac_netinet_firewall_reply(struct mbuf *mrecv, struct mbuf *msend);
261 void mac_netinet_firewall_send(struct mbuf *m);
262 void mac_netinet_fragment(struct mbuf *m, struct mbuf *frag);
263 void mac_netinet_icmp_reply(struct mbuf *mrecv, struct mbuf *msend);
264 void mac_netinet_icmp_replyinplace(struct mbuf *m);
265 void mac_netinet_igmp_send(struct ifnet *ifp, struct mbuf *m);
266 void mac_netinet_tcp_reply(struct mbuf *m);
267
268 void mac_netinet6_nd6_send(struct ifnet *ifp, struct mbuf *m);
269
270 int mac_pipe_check_ioctl(struct ucred *cred, struct pipepair *pp,
271 unsigned long cmd, void *data);
272 int mac_pipe_check_poll_impl(struct ucred *cred, struct pipepair *pp);
273 #ifdef MAC
274 extern bool mac_pipe_check_poll_fp_flag;
275 #else
276 #define mac_pipe_check_poll_fp_flag false
277 #endif
278 #define mac_pipe_check_poll_enabled() __predict_false(mac_pipe_check_poll_fp_flag)
279 static inline int
mac_pipe_check_poll(struct ucred * cred,struct pipepair * pp)280 mac_pipe_check_poll(struct ucred *cred, struct pipepair *pp)
281 {
282
283 if (mac_pipe_check_poll_enabled())
284 return (mac_pipe_check_poll_impl(cred, pp));
285 return (0);
286 }
287
288 #ifdef MAC
289 extern bool mac_pipe_check_stat_fp_flag;
290 #else
291 #define mac_pipe_check_stat_fp_flag false
292 #endif
293 #define mac_pipe_check_stat_enabled() __predict_false(mac_pipe_check_stat_fp_flag)
294 int mac_pipe_check_stat(struct ucred *cred, struct pipepair *pp);
295 int mac_pipe_check_read_impl(struct ucred *cred, struct pipepair *pp);
296 #ifdef MAC
297 extern bool mac_pipe_check_read_fp_flag;
298 #else
299 #define mac_pipe_check_read_fp_flag false
300 #endif
301 #define mac_pipe_check_read_enabled() __predict_false(mac_pipe_check_read_fp_flag)
302 static inline int
mac_pipe_check_read(struct ucred * cred,struct pipepair * pp)303 mac_pipe_check_read(struct ucred *cred, struct pipepair *pp)
304 {
305
306 if (mac_pipe_check_read_enabled())
307 return (mac_pipe_check_read_impl(cred, pp));
308 return (0);
309 }
310
311 int mac_pipe_check_write(struct ucred *cred, struct pipepair *pp);
312 void mac_pipe_create(struct ucred *cred, struct pipepair *pp);
313 void mac_pipe_destroy(struct pipepair *);
314 void mac_pipe_init(struct pipepair *);
315 int mac_pipe_label_set(struct ucred *cred, struct pipepair *pp,
316 struct label *label);
317
318 int mac_posixsem_check_getvalue(struct ucred *active_cred,
319 struct ucred *file_cred, struct ksem *ks);
320 int mac_posixsem_check_open(struct ucred *cred, struct ksem *ks);
321 int mac_posixsem_check_post(struct ucred *active_cred,
322 struct ucred *file_cred, struct ksem *ks);
323 int mac_posixsem_check_setmode(struct ucred *cred, struct ksem *ks,
324 mode_t mode);
325 int mac_posixsem_check_setowner(struct ucred *cred, struct ksem *ks,
326 uid_t uid, gid_t gid);
327 int mac_posixsem_check_stat(struct ucred *active_cred,
328 struct ucred *file_cred, struct ksem *ks);
329 int mac_posixsem_check_unlink(struct ucred *cred, struct ksem *ks);
330 int mac_posixsem_check_wait(struct ucred *active_cred,
331 struct ucred *file_cred, struct ksem *ks);
332 void mac_posixsem_create(struct ucred *cred, struct ksem *ks);
333 void mac_posixsem_destroy(struct ksem *);
334 void mac_posixsem_init(struct ksem *);
335
336 int mac_posixshm_check_create(struct ucred *cred, const char *path);
337 int mac_posixshm_check_mmap(struct ucred *cred, struct shmfd *shmfd,
338 int prot, int flags);
339 int mac_posixshm_check_open(struct ucred *cred, struct shmfd *shmfd,
340 accmode_t accmode);
341 int mac_posixshm_check_read(struct ucred *active_cred,
342 struct ucred *file_cred, struct shmfd *shmfd);
343 int mac_posixshm_check_setmode(struct ucred *cred, struct shmfd *shmfd,
344 mode_t mode);
345 int mac_posixshm_check_setowner(struct ucred *cred, struct shmfd *shmfd,
346 uid_t uid, gid_t gid);
347 int mac_posixshm_check_stat(struct ucred *active_cred,
348 struct ucred *file_cred, struct shmfd *shmfd);
349 int mac_posixshm_check_truncate(struct ucred *active_cred,
350 struct ucred *file_cred, struct shmfd *shmfd);
351 int mac_posixshm_check_unlink(struct ucred *cred, struct shmfd *shmfd);
352 int mac_posixshm_check_write(struct ucred *active_cred,
353 struct ucred *file_cred, struct shmfd *shmfd);
354 void mac_posixshm_create(struct ucred *cred, struct shmfd *shmfd);
355 void mac_posixshm_destroy(struct shmfd *);
356 void mac_posixshm_init(struct shmfd *);
357
358 int mac_prison_init(struct prison *pr, int flag);
359 void mac_prison_relabel(struct ucred *cred, struct prison *pr,
360 struct label *newlabel);
361 void mac_prison_destroy(struct prison *pr);
362 int mac_prison_check_attach(struct ucred *cred, struct prison *pr);
363 int mac_prison_check_create(struct ucred *cred, struct vfsoptlist *opts,
364 int flags);
365 int mac_prison_check_get(struct ucred *cred, struct prison *pr,
366 struct vfsoptlist *opts, int flags);
367 int mac_prison_check_set(struct ucred *cred, struct prison *pr,
368 struct vfsoptlist *opts, int flags);
369 int mac_prison_check_remove(struct ucred *cred, struct prison *pr);
370 void mac_prison_created(struct ucred *cred, struct prison *pr);
371 void mac_prison_attached(struct ucred *cred, struct prison *pr,
372 struct proc *p);
373
374 int mac_priv_check_impl(struct ucred *cred, int priv);
375 #ifdef MAC
376 extern bool mac_priv_check_fp_flag;
377 #else
378 #define mac_priv_check_fp_flag false
379 #endif
380 #define mac_priv_check_enabled() __predict_false(mac_priv_check_fp_flag)
381 static inline int
mac_priv_check(struct ucred * cred,int priv)382 mac_priv_check(struct ucred *cred, int priv)
383 {
384
385 if (mac_priv_check_enabled())
386 return (mac_priv_check_impl(cred, priv));
387 return (0);
388 }
389
390 int mac_priv_grant_impl(struct ucred *cred, int priv);
391 #ifdef MAC
392 extern bool mac_priv_grant_fp_flag;
393 #else
394 #define mac_priv_grant_fp_flag false
395 #endif
396 #define mac_priv_grant_enabled() __predict_false(mac_priv_grant_fp_flag)
397 static inline int
mac_priv_grant(struct ucred * cred,int priv)398 mac_priv_grant(struct ucred *cred, int priv)
399 {
400
401 if (mac_priv_grant_enabled())
402 return (mac_priv_grant_impl(cred, priv));
403 return (EPERM);
404 }
405
406 int mac_proc_check_debug(struct ucred *cred, struct proc *p);
407 int mac_proc_check_sched(struct ucred *cred, struct proc *p);
408 int mac_proc_check_signal(struct ucred *cred, struct proc *p,
409 int signum);
410 int mac_proc_check_wait(struct ucred *cred, struct proc *p);
411 void mac_proc_destroy(struct proc *);
412 void mac_proc_init(struct proc *);
413 void mac_proc_vm_revoke(struct thread *td);
414 int mac_execve_enter(struct image_params *imgp, struct mac *mac_p);
415 void mac_execve_exit(struct image_params *imgp);
416 void mac_execve_interpreter_enter(struct vnode *interpvp,
417 struct label **interplabel);
418 void mac_execve_interpreter_exit(struct label *interpvplabel);
419
420 int mac_socket_check_accept(struct ucred *cred, struct socket *so);
421 int mac_socket_check_bind(struct ucred *cred, struct socket *so,
422 struct sockaddr *sa);
423 int mac_socket_check_connect(struct ucred *cred, struct socket *so,
424 struct sockaddr *sa);
425 int mac_socket_check_create(struct ucred *cred, int domain, int type,
426 int proto);
427 int mac_socket_check_deliver(struct socket *so, struct mbuf *m);
428 int mac_socket_check_listen(struct ucred *cred, struct socket *so);
429 int mac_socket_check_poll(struct ucred *cred, struct socket *so);
430 int mac_socket_check_receive(struct ucred *cred, struct socket *so);
431 int mac_socket_check_send(struct ucred *cred, struct socket *so);
432 int mac_socket_check_stat(struct ucred *cred, struct socket *so);
433 int mac_socket_check_visible(struct ucred *cred, struct socket *so);
434 void mac_socket_create_mbuf(struct socket *so, struct mbuf *m);
435 void mac_socket_create(struct ucred *cred, struct socket *so);
436 void mac_socket_destroy(struct socket *);
437 int mac_socket_init(struct socket *, int);
438 void mac_socket_newconn(struct socket *oldso, struct socket *newso);
439 int mac_getsockopt_label(struct ucred *cred, struct socket *so,
440 const struct mac *extmac);
441 int mac_getsockopt_peerlabel(struct ucred *cred, struct socket *so,
442 const struct mac *extmac);
443 int mac_setsockopt_label(struct ucred *cred, struct socket *so,
444 const struct mac *extmac);
445
446 void mac_socketpeer_set_from_mbuf(struct mbuf *m, struct socket *so);
447 void mac_socketpeer_set_from_socket(struct socket *oldso,
448 struct socket *newso);
449
450 void mac_syncache_create(struct label *l, struct inpcb *inp);
451 void mac_syncache_create_mbuf(struct label *l, struct mbuf *m);
452 void mac_syncache_destroy(struct label **l);
453 int mac_syncache_init(struct label **l);
454
455 int mac_system_check_acct(struct ucred *cred, struct vnode *vp);
456 int mac_system_check_audit(struct ucred *cred, void *record, int length);
457 int mac_system_check_auditctl(struct ucred *cred, struct vnode *vp);
458 int mac_system_check_auditon(struct ucred *cred, int cmd);
459 int mac_system_check_reboot(struct ucred *cred, int howto);
460 int mac_system_check_swapon(struct ucred *cred, struct vnode *vp);
461 int mac_system_check_swapoff(struct ucred *cred, struct vnode *vp);
462 int mac_system_check_sysctl(struct ucred *cred, struct sysctl_oid *oidp,
463 void *arg1, int arg2, struct sysctl_req *req);
464
465 void mac_sysvmsg_cleanup(struct msg *msgptr);
466 void mac_sysvmsg_create(struct ucred *cred, struct msqid_kernel *msqkptr,
467 struct msg *msgptr);
468 void mac_sysvmsg_destroy(struct msg *);
469 void mac_sysvmsg_init(struct msg *);
470
471 int mac_sysvmsq_check_msgmsq(struct ucred *cred, struct msg *msgptr,
472 struct msqid_kernel *msqkptr);
473 int mac_sysvmsq_check_msgrcv(struct ucred *cred, struct msg *msgptr);
474 int mac_sysvmsq_check_msgrmid(struct ucred *cred, struct msg *msgptr);
475 int mac_sysvmsq_check_msqctl(struct ucred *cred,
476 struct msqid_kernel *msqkptr, int cmd);
477 int mac_sysvmsq_check_msqget(struct ucred *cred,
478 struct msqid_kernel *msqkptr);
479 int mac_sysvmsq_check_msqrcv(struct ucred *cred,
480 struct msqid_kernel *msqkptr);
481 int mac_sysvmsq_check_msqsnd(struct ucred *cred,
482 struct msqid_kernel *msqkptr);
483 void mac_sysvmsq_cleanup(struct msqid_kernel *msqkptr);
484 void mac_sysvmsq_create(struct ucred *cred, struct msqid_kernel *msqkptr);
485 void mac_sysvmsq_destroy(struct msqid_kernel *);
486 void mac_sysvmsq_init(struct msqid_kernel *);
487
488 int mac_sysvsem_check_semctl(struct ucred *cred,
489 struct semid_kernel *semakptr, int cmd);
490 int mac_sysvsem_check_semget(struct ucred *cred,
491 struct semid_kernel *semakptr);
492 int mac_sysvsem_check_semop(struct ucred *cred,
493 struct semid_kernel *semakptr, size_t accesstype);
494 void mac_sysvsem_cleanup(struct semid_kernel *semakptr);
495 void mac_sysvsem_create(struct ucred *cred,
496 struct semid_kernel *semakptr);
497 void mac_sysvsem_destroy(struct semid_kernel *);
498 void mac_sysvsem_init(struct semid_kernel *);
499
500 int mac_sysvshm_check_shmat(struct ucred *cred,
501 struct shmid_kernel *shmsegptr, int shmflg);
502 int mac_sysvshm_check_shmctl(struct ucred *cred,
503 struct shmid_kernel *shmsegptr, int cmd);
504 int mac_sysvshm_check_shmdt(struct ucred *cred,
505 struct shmid_kernel *shmsegptr);
506 int mac_sysvshm_check_shmget(struct ucred *cred,
507 struct shmid_kernel *shmsegptr, int shmflg);
508 void mac_sysvshm_cleanup(struct shmid_kernel *shmsegptr);
509 void mac_sysvshm_create(struct ucred *cred,
510 struct shmid_kernel *shmsegptr);
511 void mac_sysvshm_destroy(struct shmid_kernel *);
512 void mac_sysvshm_init(struct shmid_kernel *);
513
514 void mac_thread_userret(struct thread *td);
515
516 #if defined(MAC) && defined(INVARIANTS)
517 void mac_vnode_assert_locked(struct vnode *vp, const char *func);
518 #else
519 #define mac_vnode_assert_locked(vp, func) do { } while (0)
520 #endif
521
522 int mac_vnode_associate_extattr(struct mount *mp, struct vnode *vp);
523 void mac_vnode_associate_singlelabel(struct mount *mp, struct vnode *vp);
524 int mac_vnode_check_access_impl(struct ucred *cred, struct vnode *dvp,
525 accmode_t accmode);
526 extern bool mac_vnode_check_access_fp_flag;
527 #define mac_vnode_check_access_enabled() __predict_false(mac_vnode_check_access_fp_flag)
528 static inline int
mac_vnode_check_access(struct ucred * cred,struct vnode * dvp,accmode_t accmode)529 mac_vnode_check_access(struct ucred *cred, struct vnode *dvp,
530 accmode_t accmode)
531 {
532
533 mac_vnode_assert_locked(dvp, "mac_vnode_check_access");
534 if (mac_vnode_check_access_enabled())
535 return (mac_vnode_check_access_impl(cred, dvp, accmode));
536 return (0);
537 }
538 int mac_vnode_check_chdir(struct ucred *cred, struct vnode *dvp);
539 int mac_vnode_check_chroot(struct ucred *cred, struct vnode *dvp);
540 int mac_vnode_check_create(struct ucred *cred, struct vnode *dvp,
541 struct componentname *cnp, struct vattr *vap);
542 int mac_vnode_check_deleteacl(struct ucred *cred, struct vnode *vp,
543 acl_type_t type);
544 int mac_vnode_check_deleteextattr(struct ucred *cred, struct vnode *vp,
545 int attrnamespace, const char *name);
546 int mac_vnode_check_exec(struct ucred *cred, struct vnode *vp,
547 struct image_params *imgp);
548 int mac_vnode_check_getacl(struct ucred *cred, struct vnode *vp,
549 acl_type_t type);
550 int mac_vnode_check_getextattr(struct ucred *cred, struct vnode *vp,
551 int attrnamespace, const char *name);
552 int mac_vnode_check_link(struct ucred *cred, struct vnode *dvp,
553 struct vnode *vp, struct componentname *cnp);
554 int mac_vnode_check_listextattr(struct ucred *cred, struct vnode *vp,
555 int attrnamespace);
556
557 int mac_vnode_check_lookup_impl(struct ucred *cred, struct vnode *dvp,
558 struct componentname *cnp);
559 #ifdef MAC
560 extern bool mac_vnode_check_lookup_fp_flag;
561 #else
562 #define mac_vnode_check_lookup_fp_flag false
563 #endif
564 #define mac_vnode_check_lookup_enabled() __predict_false(mac_vnode_check_lookup_fp_flag)
565 static inline int
mac_vnode_check_lookup(struct ucred * cred,struct vnode * dvp,struct componentname * cnp)566 mac_vnode_check_lookup(struct ucred *cred, struct vnode *dvp,
567 struct componentname *cnp)
568 {
569
570 mac_vnode_assert_locked(dvp, "mac_vnode_check_lookup");
571 if (mac_vnode_check_lookup_enabled())
572 return (mac_vnode_check_lookup_impl(cred, dvp, cnp));
573 return (0);
574 }
575
576 int mac_vnode_check_mmap_impl(struct ucred *cred, struct vnode *vp, int prot,
577 int flags);
578 #ifdef MAC
579 extern bool mac_vnode_check_mmap_fp_flag;
580 #else
581 #define mac_vnode_check_mmap_fp_flag false
582 #endif
583 #define mac_vnode_check_mmap_enabled() __predict_false(mac_vnode_check_mmap_fp_flag)
584 static inline int
mac_vnode_check_mmap(struct ucred * cred,struct vnode * vp,int prot,int flags)585 mac_vnode_check_mmap(struct ucred *cred, struct vnode *vp, int prot,
586 int flags)
587 {
588
589 mac_vnode_assert_locked(vp, "mac_vnode_check_mmap");
590 if (mac_vnode_check_mmap_enabled())
591 return (mac_vnode_check_mmap_impl(cred, vp, prot, flags));
592 return (0);
593 }
594
595 int mac_vnode_check_open_impl(struct ucred *cred, struct vnode *vp,
596 accmode_t accmode);
597 #ifdef MAC
598 extern bool mac_vnode_check_open_fp_flag;
599 #else
600 #define mac_vnode_check_open_fp_flag false
601 #endif
602 #define mac_vnode_check_open_enabled() __predict_false(mac_vnode_check_open_fp_flag)
603 static inline int
mac_vnode_check_open(struct ucred * cred,struct vnode * vp,accmode_t accmode)604 mac_vnode_check_open(struct ucred *cred, struct vnode *vp,
605 accmode_t accmode)
606 {
607
608 mac_vnode_assert_locked(vp, "mac_vnode_check_open");
609 if (mac_vnode_check_open_enabled())
610 return (mac_vnode_check_open_impl(cred, vp, accmode));
611 return (0);
612 }
613
614 int mac_vnode_check_mprotect(struct ucred *cred, struct vnode *vp,
615 int prot);
616
617 #define mac_vnode_check_poll_enabled() __predict_false(mac_vnode_check_poll_fp_flag)
618 #ifdef MAC
619 extern bool mac_vnode_check_poll_fp_flag;
620 int mac_vnode_check_poll(struct ucred *active_cred,
621 struct ucred *file_cred, struct vnode *vp);
622 #else
623 #define mac_vnode_check_poll_fp_flag false
624 static inline int
mac_vnode_check_poll(struct ucred * active_cred,struct ucred * file_cred,struct vnode * vp)625 mac_vnode_check_poll(struct ucred *active_cred, struct ucred *file_cred,
626 struct vnode *vp)
627 {
628
629 return (0);
630 }
631 #endif
632 int mac_vnode_check_readdir(struct ucred *cred, struct vnode *vp);
633 int mac_vnode_check_readlink_impl(struct ucred *cred, struct vnode *dvp);
634 #ifdef MAC
635 extern bool mac_vnode_check_readlink_fp_flag;
636 #else
637 #define mac_vnode_check_readlink_fp_flag false
638 #endif
639 #define mac_vnode_check_readlink_enabled() __predict_false(mac_vnode_check_readlink_fp_flag)
640 static inline int
mac_vnode_check_readlink(struct ucred * cred,struct vnode * vp)641 mac_vnode_check_readlink(struct ucred *cred, struct vnode *vp)
642 {
643
644 mac_vnode_assert_locked(vp, "mac_vnode_check_readlink");
645 if (mac_vnode_check_readlink_enabled())
646 return (mac_vnode_check_readlink_impl(cred, vp));
647 return (0);
648 }
649 #define mac_vnode_check_rename_from_enabled() __predict_false(mac_vnode_check_rename_from_fp_flag)
650 #ifdef MAC
651 extern bool mac_vnode_check_rename_from_fp_flag;
652 #endif
653 int mac_vnode_check_rename_from(struct ucred *cred, struct vnode *dvp,
654 struct vnode *vp, struct componentname *cnp);
655 int mac_vnode_check_rename_to(struct ucred *cred, struct vnode *dvp,
656 struct vnode *vp, int samedir, struct componentname *cnp);
657 int mac_vnode_check_revoke(struct ucred *cred, struct vnode *vp);
658 int mac_vnode_check_setacl(struct ucred *cred, struct vnode *vp,
659 acl_type_t type, struct acl *acl);
660 int mac_vnode_check_setextattr(struct ucred *cred, struct vnode *vp,
661 int attrnamespace, const char *name);
662 int mac_vnode_check_setflags(struct ucred *cred, struct vnode *vp,
663 u_long flags);
664 int mac_vnode_check_setmode(struct ucred *cred, struct vnode *vp,
665 mode_t mode);
666 int mac_vnode_check_setowner(struct ucred *cred, struct vnode *vp,
667 uid_t uid, gid_t gid);
668 int mac_vnode_check_setutimes(struct ucred *cred, struct vnode *vp,
669 struct timespec atime, struct timespec mtime);
670
671 int mac_vnode_check_stat_impl(struct ucred *active_cred,
672 struct ucred *file_cred, struct vnode *vp);
673 #ifdef MAC
674 extern bool mac_vnode_check_stat_fp_flag;
675 #else
676 #define mac_vnode_check_stat_fp_flag false
677 #endif
678 #define mac_vnode_check_stat_enabled() __predict_false(mac_vnode_check_stat_fp_flag)
679 static inline int
mac_vnode_check_stat(struct ucred * active_cred,struct ucred * file_cred,struct vnode * vp)680 mac_vnode_check_stat(struct ucred *active_cred, struct ucred *file_cred,
681 struct vnode *vp)
682 {
683
684 mac_vnode_assert_locked(vp, "mac_vnode_check_stat");
685 if (mac_vnode_check_stat_enabled())
686 return (mac_vnode_check_stat_impl(active_cred, file_cred, vp));
687 return (0);
688 }
689
690 int mac_vnode_check_read_impl(struct ucred *active_cred,
691 struct ucred *file_cred, struct vnode *vp);
692 #ifdef MAC
693 extern bool mac_vnode_check_read_fp_flag;
694 #else
695 #define mac_vnode_check_read_fp_flag false
696 #endif
697 #define mac_vnode_check_read_enabled() __predict_false(mac_vnode_check_read_fp_flag)
698 static inline int
mac_vnode_check_read(struct ucred * active_cred,struct ucred * file_cred,struct vnode * vp)699 mac_vnode_check_read(struct ucred *active_cred, struct ucred *file_cred,
700 struct vnode *vp)
701 {
702
703 mac_vnode_assert_locked(vp, "mac_vnode_check_read");
704 if (mac_vnode_check_read_enabled())
705 return (mac_vnode_check_read_impl(active_cred, file_cred, vp));
706 return (0);
707 }
708
709 int mac_vnode_check_write_impl(struct ucred *active_cred,
710 struct ucred *file_cred, struct vnode *vp);
711 #ifdef MAC
712 extern bool mac_vnode_check_write_fp_flag;
713 #else
714 #define mac_vnode_check_write_fp_flag false
715 #endif
716 #define mac_vnode_check_write_enabled() __predict_false(mac_vnode_check_write_fp_flag)
717 static inline int
mac_vnode_check_write(struct ucred * active_cred,struct ucred * file_cred,struct vnode * vp)718 mac_vnode_check_write(struct ucred *active_cred, struct ucred *file_cred,
719 struct vnode *vp)
720 {
721
722 mac_vnode_assert_locked(vp, "mac_vnode_check_write");
723 if (mac_vnode_check_write_enabled())
724 return (mac_vnode_check_write_impl(active_cred, file_cred, vp));
725 return (0);
726 }
727
728 int mac_vnode_check_unlink(struct ucred *cred, struct vnode *dvp,
729 struct vnode *vp, struct componentname *cnp);
730 void mac_vnode_copy_label(struct label *, struct label *);
731 void mac_vnode_init(struct vnode *);
732 int mac_vnode_create_extattr(struct ucred *cred, struct mount *mp,
733 struct vnode *dvp, struct vnode *vp, struct componentname *cnp);
734 void mac_vnode_destroy(struct vnode *);
735 void mac_vnode_execve_transition(struct ucred *oldcred,
736 struct ucred *newcred, struct vnode *vp,
737 struct label *interpvplabel, struct image_params *imgp);
738 int mac_vnode_execve_will_transition(struct ucred *cred,
739 struct vnode *vp, struct label *interpvplabel,
740 struct image_params *imgp);
741 void mac_vnode_relabel(struct ucred *cred, struct vnode *vp,
742 struct label *newlabel);
743
744 /*
745 * Calls to help various file systems implement labeling functionality using
746 * their existing EA implementation.
747 */
748 int vop_stdsetlabel_ea(struct vop_setlabel_args *ap);
749
750 #endif /* !_SECURITY_MAC_MAC_FRAMEWORK_H_ */
751