1/*-
2 * Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson
3 * Copyright (c) 2001, 2002, 2003 Networks Associates Technology, Inc.
4 * All rights reserved.
5 *
6 * This software was developed by Robert Watson for the TrustedBSD Project.
7 *
8 * This software was developed for the FreeBSD Project in part by Network
9 * Associates Laboratories, the Security Research Division of Network
10 * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"),
11 * as part of the DARPA CHATS research program.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 * $FreeBSD: head/sys/security/mac_stub/mac_stub.c 123173 2003-12-06 21:48:03Z rwatson $
35 */
36
37/*
38 * Developed by the TrustedBSD Project.
39 *
40 * Stub module that implements a NOOP for most (if not all) MAC Framework
41 * policy entry points.
42 */
43
44#include <sys/types.h>
45#include <sys/param.h>
46#include <sys/acl.h>
47#include <sys/conf.h>
48#include <sys/extattr.h>
49#include <sys/kernel.h>
50#include <sys/mac.h>
51#include <sys/mount.h>
52#include <sys/proc.h>
53#include <sys/systm.h>
54#include <sys/sysproto.h>
55#include <sys/sysent.h>
56#include <sys/vnode.h>
57#include <sys/file.h>
58#include <sys/socket.h>
59#include <sys/socketvar.h>
60#include <sys/pipe.h>
61#include <sys/sysctl.h>
62
63#include <fs/devfs/devfs.h>
64
65#include <net/bpfdesc.h>
66#include <net/if.h>
67#include <net/if_types.h>
68#include <net/if_var.h>
69
70#include <netinet/in.h>
71#include <netinet/in_pcb.h>
72#include <netinet/ip_var.h>
73
74#include <vm/vm.h>
75
76#include <sys/mac_policy.h>
77
78SYSCTL_DECL(_security_mac);
79
80SYSCTL_NODE(_security_mac, OID_AUTO, stub, CTLFLAG_RW, 0,
81 "TrustedBSD mac_stub policy controls");
82
83static int stub_enabled = 1;
84SYSCTL_INT(_security_mac_stub, OID_AUTO, enabled, CTLFLAG_RW,
85 &stub_enabled, 0, "Enforce mac_stub policy");
86
87/*
88 * Policy module operations.
89 */
90static void
91stub_destroy(struct mac_policy_conf *conf)
92{
93
94}
95
96static void
97stub_init(struct mac_policy_conf *conf)
98{
99
100}
101
102static int
103stub_syscall(struct thread *td, int call, void *arg)
104{
105
106 return (0);
107}
108
109/*
110 * Label operations.
111 */
112static void
113stub_init_label(struct label *label)
114{
115
116}
117
118static int
119stub_init_label_waitcheck(struct label *label, int flag)
120{
121
122 return (0);
123}
124
125static void
126stub_destroy_label(struct label *label)
127{
128
129}
130
131static void
132stub_copy_label(struct label *src, struct label *dest)
133{
134
135}
136
137static int
138stub_externalize_label(struct label *label, char *element_name,
139 struct sbuf *sb, int *claimed)
140{
141
142 return (0);
143}
144
145static int
146stub_internalize_label(struct label *label, char *element_name,
147 char *element_data, int *claimed)
148{
149
150 return (0);
151}
152
153/*
154 * Labeling event operations: file system objects, and things that look
155 * a lot like file system objects.
156 */
157static void
158stub_associate_vnode_devfs(struct mount *mp, struct label *fslabel,
159 struct devfs_dirent *de, struct label *delabel, struct vnode *vp,
160 struct label *vlabel)
161{
162
163}
164
165static int
166stub_associate_vnode_extattr(struct mount *mp, struct label *fslabel,
167 struct vnode *vp, struct label *vlabel)
168{
169
170 return (0);
171}
172
173static void
174stub_associate_vnode_singlelabel(struct mount *mp,
175 struct label *fslabel, struct vnode *vp, struct label *vlabel)
176{
177
178}
179
180static void
181stub_create_devfs_device(struct mount *mp, dev_t dev,
182 struct devfs_dirent *devfs_dirent, struct label *label)
183{
184
185}
186
187static void
188stub_create_devfs_directory(struct mount *mp, char *dirname,
189 int dirnamelen, struct devfs_dirent *devfs_dirent, struct label *label)
190{
191
192}
193
194static void
195stub_create_devfs_symlink(struct ucred *cred, struct mount *mp,
196 struct devfs_dirent *dd, struct label *ddlabel, struct devfs_dirent *de,
197 struct label *delabel)
198{
199
200}
201
202static int
203stub_create_vnode_extattr(struct ucred *cred, struct mount *mp,
204 struct label *fslabel, struct vnode *dvp, struct label *dlabel,
205 struct vnode *vp, struct label *vlabel, struct componentname *cnp)
206{
207
208 return (0);
209}
210
211static void
212stub_create_mount(struct ucred *cred, struct mount *mp,
213 struct label *mntlabel, struct label *fslabel)
214{
215
216}
217
218static void
219stub_create_root_mount(struct ucred *cred, struct mount *mp,
220 struct label *mntlabel, struct label *fslabel)
221{
222
223}
224
225static void
226stub_relabel_vnode(struct ucred *cred, struct vnode *vp,
227 struct label *vnodelabel, struct label *label)
228{
229
230}
231
232static int
233stub_setlabel_vnode_extattr(struct ucred *cred, struct vnode *vp,
234 struct label *vlabel, struct label *intlabel)
235{
236
237 return (0);
238}
239
240static void
241stub_update_devfsdirent(struct mount *mp,
242 struct devfs_dirent *devfs_dirent, struct label *direntlabel,
243 struct vnode *vp, struct label *vnodelabel)
244{
245
246}
247
248/*
249 * Labeling event operations: IPC object.
250 */
251static void
252stub_create_mbuf_from_socket(struct socket *so, struct label *socketlabel,
253 struct mbuf *m, struct label *mbuflabel)
254{
255
256}
257
258static void
259stub_create_socket(struct ucred *cred, struct socket *socket,
260 struct label *socketlabel)
261{
262
263}
264
265static void
266stub_create_pipe(struct ucred *cred, struct pipe *pipe,
267 struct label *pipelabel)
268{
269
270}
271
272static void
273stub_create_socket_from_socket(struct socket *oldsocket,
274 struct label *oldsocketlabel, struct socket *newsocket,
275 struct label *newsocketlabel)
276{
277
278}
279
280static void
281stub_relabel_socket(struct ucred *cred, struct socket *socket,
282 struct label *socketlabel, struct label *newlabel)
283{
284
285}
286
287static void
288stub_relabel_pipe(struct ucred *cred, struct pipe *pipe,
289 struct label *pipelabel, struct label *newlabel)
290{
291
292}
293
294static void
295stub_set_socket_peer_from_mbuf(struct mbuf *mbuf, struct label *mbuflabel,
296 struct socket *socket, struct label *socketpeerlabel)
297{
298
299}
300
301static void
302stub_set_socket_peer_from_socket(struct socket *oldsocket,
303 struct label *oldsocketlabel, struct socket *newsocket,
304 struct label *newsocketpeerlabel)
305{
306
307}
308
309/*
310 * Labeling event operations: network objects.
311 */
312static void
313stub_create_bpfdesc(struct ucred *cred, struct bpf_d *bpf_d,
314 struct label *bpflabel)
315{
316
317}
318
319static void
320stub_create_datagram_from_ipq(struct ipq *ipq, struct label *ipqlabel,
321 struct mbuf *datagram, struct label *datagramlabel)
322{
323
324}
325
326static void
327stub_create_fragment(struct mbuf *datagram, struct label *datagramlabel,
328 struct mbuf *fragment, struct label *fragmentlabel)
329{
330
331}
332
333static void
334stub_create_ifnet(struct ifnet *ifnet, struct label *ifnetlabel)
335{
336
337}
338
339static void
340stub_create_inpcb_from_socket(struct socket *so, struct label *solabel,
341 struct inpcb *inp, struct label *inplabel)
342{
343
344}
345
346static void
347stub_create_ipq(struct mbuf *fragment, struct label *fragmentlabel,
348 struct ipq *ipq, struct label *ipqlabel)
349{
350
351}
352
353static void
354stub_create_mbuf_from_mbuf(struct mbuf *oldmbuf,
355 struct label *oldmbuflabel, struct mbuf *newmbuf,
356 struct label *newmbuflabel)
357{
358
359}
360
361static void
362stub_create_mbuf_linklayer(struct ifnet *ifnet, struct label *ifnetlabel,
363 struct mbuf *mbuf, struct label *mbuflabel)
364{
365
366}
367
368static void
369stub_create_mbuf_from_bpfdesc(struct bpf_d *bpf_d, struct label *bpflabel,
370 struct mbuf *mbuf, struct label *mbuflabel)
371{
372
373}
374
375static void
376stub_create_mbuf_from_ifnet(struct ifnet *ifnet, struct label *ifnetlabel,
377 struct mbuf *m, struct label *mbuflabel)
378{
379
380}
381
382static void
383stub_create_mbuf_multicast_encap(struct mbuf *oldmbuf,
384 struct label *oldmbuflabel, struct ifnet *ifnet, struct label *ifnetlabel,
385 struct mbuf *newmbuf, struct label *newmbuflabel)
386{
387
388}
389
390static void
391stub_create_mbuf_netlayer(struct mbuf *oldmbuf,
392 struct label *oldmbuflabel, struct mbuf *newmbuf, struct label *newmbuflabel)
393{
394
395}
396
397static int
398stub_fragment_match(struct mbuf *fragment, struct label *fragmentlabel,
399 struct ipq *ipq, struct label *ipqlabel)
400{
401
402 return (1);
403}
404
405static void
406stub_reflect_mbuf_icmp(struct mbuf *m, struct label *mlabel)
407{
408
409}
410
411static void
412stub_reflect_mbuf_tcp(struct mbuf *m, struct label *mlabel)
413{
414
415}
416
417static void
418stub_relabel_ifnet(struct ucred *cred, struct ifnet *ifnet,
419 struct label *ifnetlabel, struct label *newlabel)
420{
421
422}
423
424static void
425stub_update_ipq(struct mbuf *fragment, struct label *fragmentlabel,
426 struct ipq *ipq, struct label *ipqlabel)
427{
428
429}
430
431static void
432stub_inpcb_sosetlabel(struct socket *so, struct label *solabel,
433 struct inpcb *inp, struct label *inplabel)
434{
435
436}
437
438/*
439 * Labeling event operations: processes.
440 */
441static void
442stub_execve_transition(struct ucred *old, struct ucred *new,
443 struct vnode *vp, struct label *vnodelabel,
444 struct label *interpvnodelabel, struct image_params *imgp,
445 struct label *execlabel)
446{
447
448}
449
450static int
451stub_execve_will_transition(struct ucred *old, struct vnode *vp,
452 struct label *vnodelabel, struct label *interpvnodelabel,
453 struct image_params *imgp, struct label *execlabel)
454{
455
456 return (0);
457}
458
459static void
460stub_create_proc0(struct ucred *cred)
461{
462
463}
464
465static void
466stub_create_proc1(struct ucred *cred)
467{
468
469}
470
471static void
472stub_relabel_cred(struct ucred *cred, struct label *newlabel)
473{
474
475}
476
477static void
478stub_thread_userret(struct thread *td)
479{
480
481}
482
483/*
484 * Access control checks.
485 */
486static int
487stub_check_bpfdesc_receive(struct bpf_d *bpf_d, struct label *bpflabel,
488 struct ifnet *ifnet, struct label *ifnet_label)
489{
490
491 return (0);
492}
493
494static int
495stub_check_cred_relabel(struct ucred *cred, struct label *newlabel)
496{
497
498 return (0);
499}
500
501static int
502stub_check_cred_visible(struct ucred *u1, struct ucred *u2)
503{
504
505 return (0);
506}
507
508static int
509stub_check_ifnet_relabel(struct ucred *cred, struct ifnet *ifnet,
510 struct label *ifnetlabel, struct label *newlabel)
511{
512
513 return (0);
514}
515
516static int
517stub_check_ifnet_transmit(struct ifnet *ifnet, struct label *ifnetlabel,
518 struct mbuf *m, struct label *mbuflabel)
519{
520
521 return (0);
522}
523
524static int
525stub_check_inpcb_deliver(struct inpcb *inp, struct label *inplabel,
526 struct mbuf *m, struct label *mlabel)
527{
528
529 return (0);
530}
531
532static int
533stub_check_kenv_dump(struct ucred *cred)
534{
535
536 return (0);
537}
538
539static int
540stub_check_kenv_get(struct ucred *cred, char *name)
541{
542
543 return (0);
544}
545
546static int
547stub_check_kenv_set(struct ucred *cred, char *name, char *value)
548{
549
550 return (0);
551}
552
553static int
554stub_check_kenv_unset(struct ucred *cred, char *name)
555{
556
557 return (0);
558}
559
560static int
561stub_check_kld_load(struct ucred *cred, struct vnode *vp,
562 struct label *vlabel)
563{
564
565 return (0);
566}
567
568static int
569stub_check_kld_stat(struct ucred *cred)
570{
571
572 return (0);
573}
574
575static int
576stub_check_kld_unload(struct ucred *cred)
577{
578
579 return (0);
580}
581
582static int
583stub_check_mount_stat(struct ucred *cred, struct mount *mp,
584 struct label *mntlabel)
585{
586
587 return (0);
588}
589
590static int
591stub_check_pipe_ioctl(struct ucred *cred, struct pipe *pipe,
592 struct label *pipelabel, unsigned long cmd, void /* caddr_t */ *data)
593{
594
595 return (0);
596}
597
598static int
599stub_check_pipe_poll(struct ucred *cred, struct pipe *pipe,
600 struct label *pipelabel)
601{
602
603 return (0);
604}
605
606static int
607stub_check_pipe_read(struct ucred *cred, struct pipe *pipe,
608 struct label *pipelabel)
609{
610
611 return (0);
612}
613
614static int
615stub_check_pipe_relabel(struct ucred *cred, struct pipe *pipe,
616 struct label *pipelabel, struct label *newlabel)
617{
618
619 return (0);
620}
621
622static int
623stub_check_pipe_stat(struct ucred *cred, struct pipe *pipe,
624 struct label *pipelabel)
625{
626
627 return (0);
628}
629
630static int
631stub_check_pipe_write(struct ucred *cred, struct pipe *pipe,
632 struct label *pipelabel)
633{
634
635 return (0);
636}
637
638static int
639stub_check_proc_debug(struct ucred *cred, struct proc *proc)
640{
641
642 return (0);
643}
644
645static int
646stub_check_proc_sched(struct ucred *cred, struct proc *proc)
647{
648
649 return (0);
650}
651
652static int
653stub_check_proc_signal(struct ucred *cred, struct proc *proc, int signum)
654{
655
656 return (0);
657}
658
659static int
660stub_check_socket_bind(struct ucred *cred, struct socket *socket,
661 struct label *socketlabel, struct sockaddr *sockaddr)
662{
663
664 return (0);
665}
666
667static int
668stub_check_socket_connect(struct ucred *cred, struct socket *socket,
669 struct label *socketlabel, struct sockaddr *sockaddr)
670{
671
672 return (0);
673}
674
675static int
676stub_check_socket_deliver(struct socket *so, struct label *socketlabel,
677 struct mbuf *m, struct label *mbuflabel)
678{
679
680 return (0);
681}
682
683static int
684stub_check_socket_listen(struct ucred *cred, struct socket *so,
685 struct label *socketlabel)
686{
687
688 return (0);
689}
690
691static int
692stub_check_socket_relabel(struct ucred *cred, struct socket *socket,
693 struct label *socketlabel, struct label *newlabel)
694{
695
696 return (0);
697}
698
699static int
700stub_check_socket_visible(struct ucred *cred, struct socket *socket,
701 struct label *socketlabel)
702{
703
704 return (0);
705}
706
707static int
708stub_check_sysarch_ioperm(struct ucred *cred)
709{
710
711 return (0);
712}
713
714static int
715stub_check_system_acct(struct ucred *cred, struct vnode *vp,
716 struct label *vlabel)
717{
718
719 return (0);
720}
721
722static int
723stub_check_system_reboot(struct ucred *cred, int how)
724{
725
726 return (0);
727}
728
729static int
730stub_check_system_settime(struct ucred *cred)
731{
732
733 return (0);
734}
735
736static int
737stub_check_system_swapon(struct ucred *cred, struct vnode *vp,
738 struct label *label)
739{
740
741 return (0);
742}
743
744static int
745stub_check_system_swapoff(struct ucred *cred, struct vnode *vp,
746 struct label *label)
747{
748
749 return (0);
750}
751
752static int
753stub_check_system_sysctl(struct ucred *cred, int *name, u_int namelen,
754 void *old, size_t *oldlenp, int inkernel, void *new, size_t newlen)
755{
756
757 return (0);
758}
759
760static int
761stub_check_vnode_access(struct ucred *cred, struct vnode *vp,
762 struct label *label, int acc_mode)
763{
764
765 return (0);
766}
767
768static int
769stub_check_vnode_chdir(struct ucred *cred, struct vnode *dvp,
770 struct label *dlabel)
771{
772
773 return (0);
774}
775
776static int
777stub_check_vnode_chroot(struct ucred *cred, struct vnode *dvp,
778 struct label *dlabel)
779{
780
781 return (0);
782}
783
784static int
785stub_check_vnode_create(struct ucred *cred, struct vnode *dvp,
786 struct label *dlabel, struct componentname *cnp, struct vattr *vap)
787{
788
789 return (0);
790}
791
792static int
793stub_check_vnode_delete(struct ucred *cred, struct vnode *dvp,
794 struct label *dlabel, struct vnode *vp, struct label *label,
795 struct componentname *cnp)
796{
797
798 return (0);
799}
800
801static int
802stub_check_vnode_deleteacl(struct ucred *cred, struct vnode *vp,
803 struct label *label, acl_type_t type)
804{
805
806 return (0);
807}
808
809static int
810stub_check_vnode_deleteextattr(struct ucred *cred, struct vnode *vp,
811 struct label *label, int attrnamespace, const char *name)
812{
813
814 return (0);
815}
816
817static int
818stub_check_vnode_exec(struct ucred *cred, struct vnode *vp,
819 struct label *label, struct image_params *imgp,
820 struct label *execlabel)
821{
822
823 return (0);
824}
825
826static int
827stub_check_vnode_getacl(struct ucred *cred, struct vnode *vp,
828 struct label *label, acl_type_t type)
829{
830
831 return (0);
832}
833
834static int
835stub_check_vnode_getextattr(struct ucred *cred, struct vnode *vp,
836 struct label *label, int attrnamespace, const char *name, struct uio *uio)
837{
838
839 return (0);
840}
841
842static int
843stub_check_vnode_link(struct ucred *cred, struct vnode *dvp,
844 struct label *dlabel, struct vnode *vp, struct label *label,
845 struct componentname *cnp)
846{
847
848 return (0);
849}
850
851static int
852stub_check_vnode_listextattr(struct ucred *cred, struct vnode *vp,
853 struct label *label, int attrnamespace)
854{
855
856 return (0);
857}
858
859static int
860stub_check_vnode_lookup(struct ucred *cred, struct vnode *dvp,
861 struct label *dlabel, struct componentname *cnp)
862{
863
864 return (0);
865}
866
867static int
868stub_check_vnode_mmap(struct ucred *cred, struct vnode *vp,
869 struct label *label, int prot)
870{
871
872 return (0);
873}
874
875static int
876stub_check_vnode_mprotect(struct ucred *cred, struct vnode *vp,
877 struct label *label, int prot)
878{
879
880 return (0);
881}
882
883static int
884stub_check_vnode_open(struct ucred *cred, struct vnode *vp,
885 struct label *filelabel, int acc_mode)
886{
887
888 return (0);
889}
890
891static int
892stub_check_vnode_poll(struct ucred *active_cred, struct ucred *file_cred,
893 struct vnode *vp, struct label *label)
894{
895
896 return (0);
897}
898
899static int
900stub_check_vnode_read(struct ucred *active_cred, struct ucred *file_cred,
901 struct vnode *vp, struct label *label)
902{
903
904 return (0);
905}
906
907static int
908stub_check_vnode_readdir(struct ucred *cred, struct vnode *vp,
909 struct label *dlabel)
910{
911
912 return (0);
913}
914
915static int
916stub_check_vnode_readlink(struct ucred *cred, struct vnode *vp,
917 struct label *vnodelabel)
918{
919
920 return (0);
921}
922
923static int
924stub_check_vnode_relabel(struct ucred *cred, struct vnode *vp,
925 struct label *vnodelabel, struct label *newlabel)
926{
927
928 return (0);
929}
930
931static int
932stub_check_vnode_rename_from(struct ucred *cred, struct vnode *dvp,
933 struct label *dlabel, struct vnode *vp, struct label *label,
934 struct componentname *cnp)
935{
936
937 return (0);
938}
939
940static int
941stub_check_vnode_rename_to(struct ucred *cred, struct vnode *dvp,
942 struct label *dlabel, struct vnode *vp, struct label *label, int samedir,
943 struct componentname *cnp)
944{
945
946 return (0);
947}
948
949static int
950stub_check_vnode_revoke(struct ucred *cred, struct vnode *vp,
951 struct label *label)
952{
953
954 return (0);
955}
956
957static int
958stub_check_vnode_setacl(struct ucred *cred, struct vnode *vp,
959 struct label *label, acl_type_t type, struct acl *acl)
960{
961
962 return (0);
963}
964
965static int
966stub_check_vnode_setextattr(struct ucred *cred, struct vnode *vp,
967 struct label *label, int attrnamespace, const char *name, struct uio *uio)
968{
969
970 return (0);
971}
972
973static int
974stub_check_vnode_setflags(struct ucred *cred, struct vnode *vp,
975 struct label *label, u_long flags)
976{
977
978 return (0);
979}
980
981static int
982stub_check_vnode_setmode(struct ucred *cred, struct vnode *vp,
983 struct label *label, mode_t mode)
984{
985
986 return (0);
987}
988
989static int
990stub_check_vnode_setowner(struct ucred *cred, struct vnode *vp,
991 struct label *label, uid_t uid, gid_t gid)
992{
993
994 return (0);
995}
996
997static int
998stub_check_vnode_setutimes(struct ucred *cred, struct vnode *vp,
999 struct label *label, struct timespec atime, struct timespec mtime)
1000{
1001
1002 return (0);
1003}
1004
1005static int
1006stub_check_vnode_stat(struct ucred *active_cred, struct ucred *file_cred,
1007 struct vnode *vp, struct label *label)
1008{
1009
1010 return (0);
1011}
1012
1013static int
1014stub_check_vnode_write(struct ucred *active_cred,
1015 struct ucred *file_cred, struct vnode *vp, struct label *label)
1016{
1017
1018 return (0);
1019}
1020
1021static struct mac_policy_ops mac_stub_ops =
1022{
1023 .mpo_destroy = stub_destroy,
1024 .mpo_init = stub_init,
1025 .mpo_syscall = stub_syscall,
1026 .mpo_init_bpfdesc_label = stub_init_label,
1027 .mpo_init_cred_label = stub_init_label,
1028 .mpo_init_devfsdirent_label = stub_init_label,
1029 .mpo_init_ifnet_label = stub_init_label,
1030 .mpo_init_inpcb_label = stub_init_label_waitcheck,
1031 .mpo_init_ipq_label = stub_init_label_waitcheck,
1032 .mpo_init_mbuf_label = stub_init_label_waitcheck,
1033 .mpo_init_mount_label = stub_init_label,
1034 .mpo_init_mount_fs_label = stub_init_label,
1035 .mpo_init_pipe_label = stub_init_label,
1036 .mpo_init_socket_label = stub_init_label_waitcheck,
1037 .mpo_init_socket_peer_label = stub_init_label_waitcheck,
1038 .mpo_init_vnode_label = stub_init_label,
1039 .mpo_destroy_bpfdesc_label = stub_destroy_label,
1040 .mpo_destroy_cred_label = stub_destroy_label,
1041 .mpo_destroy_devfsdirent_label = stub_destroy_label,
1042 .mpo_destroy_ifnet_label = stub_destroy_label,
1043 .mpo_destroy_inpcb_label = stub_destroy_label,
1044 .mpo_destroy_ipq_label = stub_destroy_label,
1045 .mpo_destroy_mbuf_label = stub_destroy_label,
1046 .mpo_destroy_mount_label = stub_destroy_label,
1047 .mpo_destroy_mount_fs_label = stub_destroy_label,
1048 .mpo_destroy_pipe_label = stub_destroy_label,
1049 .mpo_destroy_socket_label = stub_destroy_label,
1050 .mpo_destroy_socket_peer_label = stub_destroy_label,
1051 .mpo_destroy_vnode_label = stub_destroy_label,
1052 .mpo_copy_cred_label = stub_copy_label,
1053 .mpo_copy_mbuf_label = stub_copy_label,
1054 .mpo_copy_pipe_label = stub_copy_label,
1055 .mpo_copy_socket_label = stub_copy_label,
1056 .mpo_copy_vnode_label = stub_copy_label,
1057 .mpo_externalize_cred_label = stub_externalize_label,
1058 .mpo_externalize_ifnet_label = stub_externalize_label,
1059 .mpo_externalize_pipe_label = stub_externalize_label,
1060 .mpo_externalize_socket_label = stub_externalize_label,
1061 .mpo_externalize_socket_peer_label = stub_externalize_label,
1062 .mpo_externalize_vnode_label = stub_externalize_label,
1063 .mpo_internalize_cred_label = stub_internalize_label,
1064 .mpo_internalize_ifnet_label = stub_internalize_label,
1065 .mpo_internalize_pipe_label = stub_internalize_label,
1066 .mpo_internalize_socket_label = stub_internalize_label,
1067 .mpo_internalize_vnode_label = stub_internalize_label,
1068 .mpo_associate_vnode_devfs = stub_associate_vnode_devfs,
1069 .mpo_associate_vnode_extattr = stub_associate_vnode_extattr,
1070 .mpo_associate_vnode_singlelabel = stub_associate_vnode_singlelabel,
1071 .mpo_create_devfs_device = stub_create_devfs_device,
1072 .mpo_create_devfs_directory = stub_create_devfs_directory,
1073 .mpo_create_devfs_symlink = stub_create_devfs_symlink,
1074 .mpo_create_vnode_extattr = stub_create_vnode_extattr,
1075 .mpo_create_mount = stub_create_mount,
1076 .mpo_create_root_mount = stub_create_root_mount,
1077 .mpo_relabel_vnode = stub_relabel_vnode,
1078 .mpo_setlabel_vnode_extattr = stub_setlabel_vnode_extattr,
1079 .mpo_update_devfsdirent = stub_update_devfsdirent,
1080 .mpo_create_mbuf_from_socket = stub_create_mbuf_from_socket,
1081 .mpo_create_pipe = stub_create_pipe,
1082 .mpo_create_socket = stub_create_socket,
1083 .mpo_create_socket_from_socket = stub_create_socket_from_socket,
1084 .mpo_relabel_pipe = stub_relabel_pipe,
1085 .mpo_relabel_socket = stub_relabel_socket,
1086 .mpo_set_socket_peer_from_mbuf = stub_set_socket_peer_from_mbuf,
1087 .mpo_set_socket_peer_from_socket = stub_set_socket_peer_from_socket,
1088 .mpo_create_bpfdesc = stub_create_bpfdesc,
1089 .mpo_create_ifnet = stub_create_ifnet,
1090 .mpo_create_inpcb_from_socket = stub_create_inpcb_from_socket,
1091 .mpo_create_ipq = stub_create_ipq,
1092 .mpo_create_datagram_from_ipq = stub_create_datagram_from_ipq,
1093 .mpo_create_fragment = stub_create_fragment,
1094 .mpo_create_ipq = stub_create_ipq,
1095 .mpo_create_mbuf_from_mbuf = stub_create_mbuf_from_mbuf,
1096 .mpo_create_mbuf_linklayer = stub_create_mbuf_linklayer,
1097 .mpo_create_mbuf_from_bpfdesc = stub_create_mbuf_from_bpfdesc,
1098 .mpo_create_mbuf_from_ifnet = stub_create_mbuf_from_ifnet,
1099 .mpo_create_mbuf_multicast_encap = stub_create_mbuf_multicast_encap,
1100 .mpo_create_mbuf_netlayer = stub_create_mbuf_netlayer,
1101 .mpo_fragment_match = stub_fragment_match,
1102 .mpo_reflect_mbuf_icmp = stub_reflect_mbuf_icmp,
1103 .mpo_reflect_mbuf_tcp = stub_reflect_mbuf_tcp,
1104 .mpo_relabel_ifnet = stub_relabel_ifnet,
1105 .mpo_update_ipq = stub_update_ipq,
1106 .mpo_inpcb_sosetlabel = stub_inpcb_sosetlabel,
1107 .mpo_execve_transition = stub_execve_transition,
1108 .mpo_execve_will_transition = stub_execve_will_transition,
1109 .mpo_create_proc0 = stub_create_proc0,
1110 .mpo_create_proc1 = stub_create_proc1,
1111 .mpo_relabel_cred = stub_relabel_cred,
1112 .mpo_thread_userret = stub_thread_userret,
1113 .mpo_check_bpfdesc_receive = stub_check_bpfdesc_receive,
1114 .mpo_check_cred_relabel = stub_check_cred_relabel,
1115 .mpo_check_cred_visible = stub_check_cred_visible,
1116 .mpo_check_ifnet_relabel = stub_check_ifnet_relabel,
1117 .mpo_check_ifnet_transmit = stub_check_ifnet_transmit,
1118 .mpo_check_inpcb_deliver = stub_check_inpcb_deliver,
1119 .mpo_check_kenv_dump = stub_check_kenv_dump,
1120 .mpo_check_kenv_get = stub_check_kenv_get,
1121 .mpo_check_kenv_set = stub_check_kenv_set,
1122 .mpo_check_kenv_unset = stub_check_kenv_unset,
1123 .mpo_check_kld_load = stub_check_kld_load,
1124 .mpo_check_kld_stat = stub_check_kld_stat,
1125 .mpo_check_kld_unload = stub_check_kld_unload,
1126 .mpo_check_mount_stat = stub_check_mount_stat,
1127 .mpo_check_pipe_ioctl = stub_check_pipe_ioctl,
1128 .mpo_check_pipe_poll = stub_check_pipe_poll,
1129 .mpo_check_pipe_read = stub_check_pipe_read,
1130 .mpo_check_pipe_relabel = stub_check_pipe_relabel,
1131 .mpo_check_pipe_stat = stub_check_pipe_stat,
1132 .mpo_check_pipe_write = stub_check_pipe_write,
1133 .mpo_check_proc_debug = stub_check_proc_debug,
1134 .mpo_check_proc_sched = stub_check_proc_sched,
1135 .mpo_check_proc_signal = stub_check_proc_signal,
1136 .mpo_check_socket_bind = stub_check_socket_bind,
1137 .mpo_check_socket_connect = stub_check_socket_connect,
1138 .mpo_check_socket_deliver = stub_check_socket_deliver,
1139 .mpo_check_socket_listen = stub_check_socket_listen,
1140 .mpo_check_socket_relabel = stub_check_socket_relabel,
1141 .mpo_check_socket_visible = stub_check_socket_visible,
1142 .mpo_check_sysarch_ioperm = stub_check_sysarch_ioperm,
1143 .mpo_check_system_acct = stub_check_system_acct,
1144 .mpo_check_system_reboot = stub_check_system_reboot,
1145 .mpo_check_system_settime = stub_check_system_settime,
1146 .mpo_check_system_swapon = stub_check_system_swapon,
1147 .mpo_check_system_swapoff = stub_check_system_swapoff,
1148 .mpo_check_system_sysctl = stub_check_system_sysctl,
1149 .mpo_check_vnode_access = stub_check_vnode_access,
1150 .mpo_check_vnode_chdir = stub_check_vnode_chdir,
1151 .mpo_check_vnode_chroot = stub_check_vnode_chroot,
1152 .mpo_check_vnode_create = stub_check_vnode_create,
1153 .mpo_check_vnode_delete = stub_check_vnode_delete,
1154 .mpo_check_vnode_deleteacl = stub_check_vnode_deleteacl,
1155 .mpo_check_vnode_deleteextattr = stub_check_vnode_deleteextattr,
1156 .mpo_check_vnode_exec = stub_check_vnode_exec,
1157 .mpo_check_vnode_getacl = stub_check_vnode_getacl,
1158 .mpo_check_vnode_getextattr = stub_check_vnode_getextattr,
1159 .mpo_check_vnode_link = stub_check_vnode_link,
1160 .mpo_check_vnode_listextattr = stub_check_vnode_listextattr,
1161 .mpo_check_vnode_lookup = stub_check_vnode_lookup,
1162 .mpo_check_vnode_mmap = stub_check_vnode_mmap,
1163 .mpo_check_vnode_mprotect = stub_check_vnode_mprotect,
1164 .mpo_check_vnode_open = stub_check_vnode_open,
1165 .mpo_check_vnode_poll = stub_check_vnode_poll,
1166 .mpo_check_vnode_read = stub_check_vnode_read,
1167 .mpo_check_vnode_readdir = stub_check_vnode_readdir,
1168 .mpo_check_vnode_readlink = stub_check_vnode_readlink,
1169 .mpo_check_vnode_relabel = stub_check_vnode_relabel,
1170 .mpo_check_vnode_rename_from = stub_check_vnode_rename_from,
1171 .mpo_check_vnode_rename_to = stub_check_vnode_rename_to,
1172 .mpo_check_vnode_revoke = stub_check_vnode_revoke,
1173 .mpo_check_vnode_setacl = stub_check_vnode_setacl,
1174 .mpo_check_vnode_setextattr = stub_check_vnode_setextattr,
1175 .mpo_check_vnode_setflags = stub_check_vnode_setflags,
1176 .mpo_check_vnode_setmode = stub_check_vnode_setmode,
1177 .mpo_check_vnode_setowner = stub_check_vnode_setowner,
1178 .mpo_check_vnode_setutimes = stub_check_vnode_setutimes,
1179 .mpo_check_vnode_stat = stub_check_vnode_stat,
1180 .mpo_check_vnode_write = stub_check_vnode_write,
1181};
1182
1183MAC_POLICY_SET(&mac_stub_ops, mac_stub, "TrustedBSD MAC/Stub",
1184 MPC_LOADTIME_FLAG_UNLOADOK, NULL);
2 * Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson
3 * Copyright (c) 2001, 2002, 2003 Networks Associates Technology, Inc.
4 * All rights reserved.
5 *
6 * This software was developed by Robert Watson for the TrustedBSD Project.
7 *
8 * This software was developed for the FreeBSD Project in part by Network
9 * Associates Laboratories, the Security Research Division of Network
10 * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"),
11 * as part of the DARPA CHATS research program.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 * $FreeBSD: head/sys/security/mac_stub/mac_stub.c 123173 2003-12-06 21:48:03Z rwatson $
35 */
36
37/*
38 * Developed by the TrustedBSD Project.
39 *
40 * Stub module that implements a NOOP for most (if not all) MAC Framework
41 * policy entry points.
42 */
43
44#include <sys/types.h>
45#include <sys/param.h>
46#include <sys/acl.h>
47#include <sys/conf.h>
48#include <sys/extattr.h>
49#include <sys/kernel.h>
50#include <sys/mac.h>
51#include <sys/mount.h>
52#include <sys/proc.h>
53#include <sys/systm.h>
54#include <sys/sysproto.h>
55#include <sys/sysent.h>
56#include <sys/vnode.h>
57#include <sys/file.h>
58#include <sys/socket.h>
59#include <sys/socketvar.h>
60#include <sys/pipe.h>
61#include <sys/sysctl.h>
62
63#include <fs/devfs/devfs.h>
64
65#include <net/bpfdesc.h>
66#include <net/if.h>
67#include <net/if_types.h>
68#include <net/if_var.h>
69
70#include <netinet/in.h>
71#include <netinet/in_pcb.h>
72#include <netinet/ip_var.h>
73
74#include <vm/vm.h>
75
76#include <sys/mac_policy.h>
77
78SYSCTL_DECL(_security_mac);
79
80SYSCTL_NODE(_security_mac, OID_AUTO, stub, CTLFLAG_RW, 0,
81 "TrustedBSD mac_stub policy controls");
82
83static int stub_enabled = 1;
84SYSCTL_INT(_security_mac_stub, OID_AUTO, enabled, CTLFLAG_RW,
85 &stub_enabled, 0, "Enforce mac_stub policy");
86
87/*
88 * Policy module operations.
89 */
90static void
91stub_destroy(struct mac_policy_conf *conf)
92{
93
94}
95
96static void
97stub_init(struct mac_policy_conf *conf)
98{
99
100}
101
102static int
103stub_syscall(struct thread *td, int call, void *arg)
104{
105
106 return (0);
107}
108
109/*
110 * Label operations.
111 */
112static void
113stub_init_label(struct label *label)
114{
115
116}
117
118static int
119stub_init_label_waitcheck(struct label *label, int flag)
120{
121
122 return (0);
123}
124
125static void
126stub_destroy_label(struct label *label)
127{
128
129}
130
131static void
132stub_copy_label(struct label *src, struct label *dest)
133{
134
135}
136
137static int
138stub_externalize_label(struct label *label, char *element_name,
139 struct sbuf *sb, int *claimed)
140{
141
142 return (0);
143}
144
145static int
146stub_internalize_label(struct label *label, char *element_name,
147 char *element_data, int *claimed)
148{
149
150 return (0);
151}
152
153/*
154 * Labeling event operations: file system objects, and things that look
155 * a lot like file system objects.
156 */
157static void
158stub_associate_vnode_devfs(struct mount *mp, struct label *fslabel,
159 struct devfs_dirent *de, struct label *delabel, struct vnode *vp,
160 struct label *vlabel)
161{
162
163}
164
165static int
166stub_associate_vnode_extattr(struct mount *mp, struct label *fslabel,
167 struct vnode *vp, struct label *vlabel)
168{
169
170 return (0);
171}
172
173static void
174stub_associate_vnode_singlelabel(struct mount *mp,
175 struct label *fslabel, struct vnode *vp, struct label *vlabel)
176{
177
178}
179
180static void
181stub_create_devfs_device(struct mount *mp, dev_t dev,
182 struct devfs_dirent *devfs_dirent, struct label *label)
183{
184
185}
186
187static void
188stub_create_devfs_directory(struct mount *mp, char *dirname,
189 int dirnamelen, struct devfs_dirent *devfs_dirent, struct label *label)
190{
191
192}
193
194static void
195stub_create_devfs_symlink(struct ucred *cred, struct mount *mp,
196 struct devfs_dirent *dd, struct label *ddlabel, struct devfs_dirent *de,
197 struct label *delabel)
198{
199
200}
201
202static int
203stub_create_vnode_extattr(struct ucred *cred, struct mount *mp,
204 struct label *fslabel, struct vnode *dvp, struct label *dlabel,
205 struct vnode *vp, struct label *vlabel, struct componentname *cnp)
206{
207
208 return (0);
209}
210
211static void
212stub_create_mount(struct ucred *cred, struct mount *mp,
213 struct label *mntlabel, struct label *fslabel)
214{
215
216}
217
218static void
219stub_create_root_mount(struct ucred *cred, struct mount *mp,
220 struct label *mntlabel, struct label *fslabel)
221{
222
223}
224
225static void
226stub_relabel_vnode(struct ucred *cred, struct vnode *vp,
227 struct label *vnodelabel, struct label *label)
228{
229
230}
231
232static int
233stub_setlabel_vnode_extattr(struct ucred *cred, struct vnode *vp,
234 struct label *vlabel, struct label *intlabel)
235{
236
237 return (0);
238}
239
240static void
241stub_update_devfsdirent(struct mount *mp,
242 struct devfs_dirent *devfs_dirent, struct label *direntlabel,
243 struct vnode *vp, struct label *vnodelabel)
244{
245
246}
247
248/*
249 * Labeling event operations: IPC object.
250 */
251static void
252stub_create_mbuf_from_socket(struct socket *so, struct label *socketlabel,
253 struct mbuf *m, struct label *mbuflabel)
254{
255
256}
257
258static void
259stub_create_socket(struct ucred *cred, struct socket *socket,
260 struct label *socketlabel)
261{
262
263}
264
265static void
266stub_create_pipe(struct ucred *cred, struct pipe *pipe,
267 struct label *pipelabel)
268{
269
270}
271
272static void
273stub_create_socket_from_socket(struct socket *oldsocket,
274 struct label *oldsocketlabel, struct socket *newsocket,
275 struct label *newsocketlabel)
276{
277
278}
279
280static void
281stub_relabel_socket(struct ucred *cred, struct socket *socket,
282 struct label *socketlabel, struct label *newlabel)
283{
284
285}
286
287static void
288stub_relabel_pipe(struct ucred *cred, struct pipe *pipe,
289 struct label *pipelabel, struct label *newlabel)
290{
291
292}
293
294static void
295stub_set_socket_peer_from_mbuf(struct mbuf *mbuf, struct label *mbuflabel,
296 struct socket *socket, struct label *socketpeerlabel)
297{
298
299}
300
301static void
302stub_set_socket_peer_from_socket(struct socket *oldsocket,
303 struct label *oldsocketlabel, struct socket *newsocket,
304 struct label *newsocketpeerlabel)
305{
306
307}
308
309/*
310 * Labeling event operations: network objects.
311 */
312static void
313stub_create_bpfdesc(struct ucred *cred, struct bpf_d *bpf_d,
314 struct label *bpflabel)
315{
316
317}
318
319static void
320stub_create_datagram_from_ipq(struct ipq *ipq, struct label *ipqlabel,
321 struct mbuf *datagram, struct label *datagramlabel)
322{
323
324}
325
326static void
327stub_create_fragment(struct mbuf *datagram, struct label *datagramlabel,
328 struct mbuf *fragment, struct label *fragmentlabel)
329{
330
331}
332
333static void
334stub_create_ifnet(struct ifnet *ifnet, struct label *ifnetlabel)
335{
336
337}
338
339static void
340stub_create_inpcb_from_socket(struct socket *so, struct label *solabel,
341 struct inpcb *inp, struct label *inplabel)
342{
343
344}
345
346static void
347stub_create_ipq(struct mbuf *fragment, struct label *fragmentlabel,
348 struct ipq *ipq, struct label *ipqlabel)
349{
350
351}
352
353static void
354stub_create_mbuf_from_mbuf(struct mbuf *oldmbuf,
355 struct label *oldmbuflabel, struct mbuf *newmbuf,
356 struct label *newmbuflabel)
357{
358
359}
360
361static void
362stub_create_mbuf_linklayer(struct ifnet *ifnet, struct label *ifnetlabel,
363 struct mbuf *mbuf, struct label *mbuflabel)
364{
365
366}
367
368static void
369stub_create_mbuf_from_bpfdesc(struct bpf_d *bpf_d, struct label *bpflabel,
370 struct mbuf *mbuf, struct label *mbuflabel)
371{
372
373}
374
375static void
376stub_create_mbuf_from_ifnet(struct ifnet *ifnet, struct label *ifnetlabel,
377 struct mbuf *m, struct label *mbuflabel)
378{
379
380}
381
382static void
383stub_create_mbuf_multicast_encap(struct mbuf *oldmbuf,
384 struct label *oldmbuflabel, struct ifnet *ifnet, struct label *ifnetlabel,
385 struct mbuf *newmbuf, struct label *newmbuflabel)
386{
387
388}
389
390static void
391stub_create_mbuf_netlayer(struct mbuf *oldmbuf,
392 struct label *oldmbuflabel, struct mbuf *newmbuf, struct label *newmbuflabel)
393{
394
395}
396
397static int
398stub_fragment_match(struct mbuf *fragment, struct label *fragmentlabel,
399 struct ipq *ipq, struct label *ipqlabel)
400{
401
402 return (1);
403}
404
405static void
406stub_reflect_mbuf_icmp(struct mbuf *m, struct label *mlabel)
407{
408
409}
410
411static void
412stub_reflect_mbuf_tcp(struct mbuf *m, struct label *mlabel)
413{
414
415}
416
417static void
418stub_relabel_ifnet(struct ucred *cred, struct ifnet *ifnet,
419 struct label *ifnetlabel, struct label *newlabel)
420{
421
422}
423
424static void
425stub_update_ipq(struct mbuf *fragment, struct label *fragmentlabel,
426 struct ipq *ipq, struct label *ipqlabel)
427{
428
429}
430
431static void
432stub_inpcb_sosetlabel(struct socket *so, struct label *solabel,
433 struct inpcb *inp, struct label *inplabel)
434{
435
436}
437
438/*
439 * Labeling event operations: processes.
440 */
441static void
442stub_execve_transition(struct ucred *old, struct ucred *new,
443 struct vnode *vp, struct label *vnodelabel,
444 struct label *interpvnodelabel, struct image_params *imgp,
445 struct label *execlabel)
446{
447
448}
449
450static int
451stub_execve_will_transition(struct ucred *old, struct vnode *vp,
452 struct label *vnodelabel, struct label *interpvnodelabel,
453 struct image_params *imgp, struct label *execlabel)
454{
455
456 return (0);
457}
458
459static void
460stub_create_proc0(struct ucred *cred)
461{
462
463}
464
465static void
466stub_create_proc1(struct ucred *cred)
467{
468
469}
470
471static void
472stub_relabel_cred(struct ucred *cred, struct label *newlabel)
473{
474
475}
476
477static void
478stub_thread_userret(struct thread *td)
479{
480
481}
482
483/*
484 * Access control checks.
485 */
486static int
487stub_check_bpfdesc_receive(struct bpf_d *bpf_d, struct label *bpflabel,
488 struct ifnet *ifnet, struct label *ifnet_label)
489{
490
491 return (0);
492}
493
494static int
495stub_check_cred_relabel(struct ucred *cred, struct label *newlabel)
496{
497
498 return (0);
499}
500
501static int
502stub_check_cred_visible(struct ucred *u1, struct ucred *u2)
503{
504
505 return (0);
506}
507
508static int
509stub_check_ifnet_relabel(struct ucred *cred, struct ifnet *ifnet,
510 struct label *ifnetlabel, struct label *newlabel)
511{
512
513 return (0);
514}
515
516static int
517stub_check_ifnet_transmit(struct ifnet *ifnet, struct label *ifnetlabel,
518 struct mbuf *m, struct label *mbuflabel)
519{
520
521 return (0);
522}
523
524static int
525stub_check_inpcb_deliver(struct inpcb *inp, struct label *inplabel,
526 struct mbuf *m, struct label *mlabel)
527{
528
529 return (0);
530}
531
532static int
533stub_check_kenv_dump(struct ucred *cred)
534{
535
536 return (0);
537}
538
539static int
540stub_check_kenv_get(struct ucred *cred, char *name)
541{
542
543 return (0);
544}
545
546static int
547stub_check_kenv_set(struct ucred *cred, char *name, char *value)
548{
549
550 return (0);
551}
552
553static int
554stub_check_kenv_unset(struct ucred *cred, char *name)
555{
556
557 return (0);
558}
559
560static int
561stub_check_kld_load(struct ucred *cred, struct vnode *vp,
562 struct label *vlabel)
563{
564
565 return (0);
566}
567
568static int
569stub_check_kld_stat(struct ucred *cred)
570{
571
572 return (0);
573}
574
575static int
576stub_check_kld_unload(struct ucred *cred)
577{
578
579 return (0);
580}
581
582static int
583stub_check_mount_stat(struct ucred *cred, struct mount *mp,
584 struct label *mntlabel)
585{
586
587 return (0);
588}
589
590static int
591stub_check_pipe_ioctl(struct ucred *cred, struct pipe *pipe,
592 struct label *pipelabel, unsigned long cmd, void /* caddr_t */ *data)
593{
594
595 return (0);
596}
597
598static int
599stub_check_pipe_poll(struct ucred *cred, struct pipe *pipe,
600 struct label *pipelabel)
601{
602
603 return (0);
604}
605
606static int
607stub_check_pipe_read(struct ucred *cred, struct pipe *pipe,
608 struct label *pipelabel)
609{
610
611 return (0);
612}
613
614static int
615stub_check_pipe_relabel(struct ucred *cred, struct pipe *pipe,
616 struct label *pipelabel, struct label *newlabel)
617{
618
619 return (0);
620}
621
622static int
623stub_check_pipe_stat(struct ucred *cred, struct pipe *pipe,
624 struct label *pipelabel)
625{
626
627 return (0);
628}
629
630static int
631stub_check_pipe_write(struct ucred *cred, struct pipe *pipe,
632 struct label *pipelabel)
633{
634
635 return (0);
636}
637
638static int
639stub_check_proc_debug(struct ucred *cred, struct proc *proc)
640{
641
642 return (0);
643}
644
645static int
646stub_check_proc_sched(struct ucred *cred, struct proc *proc)
647{
648
649 return (0);
650}
651
652static int
653stub_check_proc_signal(struct ucred *cred, struct proc *proc, int signum)
654{
655
656 return (0);
657}
658
659static int
660stub_check_socket_bind(struct ucred *cred, struct socket *socket,
661 struct label *socketlabel, struct sockaddr *sockaddr)
662{
663
664 return (0);
665}
666
667static int
668stub_check_socket_connect(struct ucred *cred, struct socket *socket,
669 struct label *socketlabel, struct sockaddr *sockaddr)
670{
671
672 return (0);
673}
674
675static int
676stub_check_socket_deliver(struct socket *so, struct label *socketlabel,
677 struct mbuf *m, struct label *mbuflabel)
678{
679
680 return (0);
681}
682
683static int
684stub_check_socket_listen(struct ucred *cred, struct socket *so,
685 struct label *socketlabel)
686{
687
688 return (0);
689}
690
691static int
692stub_check_socket_relabel(struct ucred *cred, struct socket *socket,
693 struct label *socketlabel, struct label *newlabel)
694{
695
696 return (0);
697}
698
699static int
700stub_check_socket_visible(struct ucred *cred, struct socket *socket,
701 struct label *socketlabel)
702{
703
704 return (0);
705}
706
707static int
708stub_check_sysarch_ioperm(struct ucred *cred)
709{
710
711 return (0);
712}
713
714static int
715stub_check_system_acct(struct ucred *cred, struct vnode *vp,
716 struct label *vlabel)
717{
718
719 return (0);
720}
721
722static int
723stub_check_system_reboot(struct ucred *cred, int how)
724{
725
726 return (0);
727}
728
729static int
730stub_check_system_settime(struct ucred *cred)
731{
732
733 return (0);
734}
735
736static int
737stub_check_system_swapon(struct ucred *cred, struct vnode *vp,
738 struct label *label)
739{
740
741 return (0);
742}
743
744static int
745stub_check_system_swapoff(struct ucred *cred, struct vnode *vp,
746 struct label *label)
747{
748
749 return (0);
750}
751
752static int
753stub_check_system_sysctl(struct ucred *cred, int *name, u_int namelen,
754 void *old, size_t *oldlenp, int inkernel, void *new, size_t newlen)
755{
756
757 return (0);
758}
759
760static int
761stub_check_vnode_access(struct ucred *cred, struct vnode *vp,
762 struct label *label, int acc_mode)
763{
764
765 return (0);
766}
767
768static int
769stub_check_vnode_chdir(struct ucred *cred, struct vnode *dvp,
770 struct label *dlabel)
771{
772
773 return (0);
774}
775
776static int
777stub_check_vnode_chroot(struct ucred *cred, struct vnode *dvp,
778 struct label *dlabel)
779{
780
781 return (0);
782}
783
784static int
785stub_check_vnode_create(struct ucred *cred, struct vnode *dvp,
786 struct label *dlabel, struct componentname *cnp, struct vattr *vap)
787{
788
789 return (0);
790}
791
792static int
793stub_check_vnode_delete(struct ucred *cred, struct vnode *dvp,
794 struct label *dlabel, struct vnode *vp, struct label *label,
795 struct componentname *cnp)
796{
797
798 return (0);
799}
800
801static int
802stub_check_vnode_deleteacl(struct ucred *cred, struct vnode *vp,
803 struct label *label, acl_type_t type)
804{
805
806 return (0);
807}
808
809static int
810stub_check_vnode_deleteextattr(struct ucred *cred, struct vnode *vp,
811 struct label *label, int attrnamespace, const char *name)
812{
813
814 return (0);
815}
816
817static int
818stub_check_vnode_exec(struct ucred *cred, struct vnode *vp,
819 struct label *label, struct image_params *imgp,
820 struct label *execlabel)
821{
822
823 return (0);
824}
825
826static int
827stub_check_vnode_getacl(struct ucred *cred, struct vnode *vp,
828 struct label *label, acl_type_t type)
829{
830
831 return (0);
832}
833
834static int
835stub_check_vnode_getextattr(struct ucred *cred, struct vnode *vp,
836 struct label *label, int attrnamespace, const char *name, struct uio *uio)
837{
838
839 return (0);
840}
841
842static int
843stub_check_vnode_link(struct ucred *cred, struct vnode *dvp,
844 struct label *dlabel, struct vnode *vp, struct label *label,
845 struct componentname *cnp)
846{
847
848 return (0);
849}
850
851static int
852stub_check_vnode_listextattr(struct ucred *cred, struct vnode *vp,
853 struct label *label, int attrnamespace)
854{
855
856 return (0);
857}
858
859static int
860stub_check_vnode_lookup(struct ucred *cred, struct vnode *dvp,
861 struct label *dlabel, struct componentname *cnp)
862{
863
864 return (0);
865}
866
867static int
868stub_check_vnode_mmap(struct ucred *cred, struct vnode *vp,
869 struct label *label, int prot)
870{
871
872 return (0);
873}
874
875static int
876stub_check_vnode_mprotect(struct ucred *cred, struct vnode *vp,
877 struct label *label, int prot)
878{
879
880 return (0);
881}
882
883static int
884stub_check_vnode_open(struct ucred *cred, struct vnode *vp,
885 struct label *filelabel, int acc_mode)
886{
887
888 return (0);
889}
890
891static int
892stub_check_vnode_poll(struct ucred *active_cred, struct ucred *file_cred,
893 struct vnode *vp, struct label *label)
894{
895
896 return (0);
897}
898
899static int
900stub_check_vnode_read(struct ucred *active_cred, struct ucred *file_cred,
901 struct vnode *vp, struct label *label)
902{
903
904 return (0);
905}
906
907static int
908stub_check_vnode_readdir(struct ucred *cred, struct vnode *vp,
909 struct label *dlabel)
910{
911
912 return (0);
913}
914
915static int
916stub_check_vnode_readlink(struct ucred *cred, struct vnode *vp,
917 struct label *vnodelabel)
918{
919
920 return (0);
921}
922
923static int
924stub_check_vnode_relabel(struct ucred *cred, struct vnode *vp,
925 struct label *vnodelabel, struct label *newlabel)
926{
927
928 return (0);
929}
930
931static int
932stub_check_vnode_rename_from(struct ucred *cred, struct vnode *dvp,
933 struct label *dlabel, struct vnode *vp, struct label *label,
934 struct componentname *cnp)
935{
936
937 return (0);
938}
939
940static int
941stub_check_vnode_rename_to(struct ucred *cred, struct vnode *dvp,
942 struct label *dlabel, struct vnode *vp, struct label *label, int samedir,
943 struct componentname *cnp)
944{
945
946 return (0);
947}
948
949static int
950stub_check_vnode_revoke(struct ucred *cred, struct vnode *vp,
951 struct label *label)
952{
953
954 return (0);
955}
956
957static int
958stub_check_vnode_setacl(struct ucred *cred, struct vnode *vp,
959 struct label *label, acl_type_t type, struct acl *acl)
960{
961
962 return (0);
963}
964
965static int
966stub_check_vnode_setextattr(struct ucred *cred, struct vnode *vp,
967 struct label *label, int attrnamespace, const char *name, struct uio *uio)
968{
969
970 return (0);
971}
972
973static int
974stub_check_vnode_setflags(struct ucred *cred, struct vnode *vp,
975 struct label *label, u_long flags)
976{
977
978 return (0);
979}
980
981static int
982stub_check_vnode_setmode(struct ucred *cred, struct vnode *vp,
983 struct label *label, mode_t mode)
984{
985
986 return (0);
987}
988
989static int
990stub_check_vnode_setowner(struct ucred *cred, struct vnode *vp,
991 struct label *label, uid_t uid, gid_t gid)
992{
993
994 return (0);
995}
996
997static int
998stub_check_vnode_setutimes(struct ucred *cred, struct vnode *vp,
999 struct label *label, struct timespec atime, struct timespec mtime)
1000{
1001
1002 return (0);
1003}
1004
1005static int
1006stub_check_vnode_stat(struct ucred *active_cred, struct ucred *file_cred,
1007 struct vnode *vp, struct label *label)
1008{
1009
1010 return (0);
1011}
1012
1013static int
1014stub_check_vnode_write(struct ucred *active_cred,
1015 struct ucred *file_cred, struct vnode *vp, struct label *label)
1016{
1017
1018 return (0);
1019}
1020
1021static struct mac_policy_ops mac_stub_ops =
1022{
1023 .mpo_destroy = stub_destroy,
1024 .mpo_init = stub_init,
1025 .mpo_syscall = stub_syscall,
1026 .mpo_init_bpfdesc_label = stub_init_label,
1027 .mpo_init_cred_label = stub_init_label,
1028 .mpo_init_devfsdirent_label = stub_init_label,
1029 .mpo_init_ifnet_label = stub_init_label,
1030 .mpo_init_inpcb_label = stub_init_label_waitcheck,
1031 .mpo_init_ipq_label = stub_init_label_waitcheck,
1032 .mpo_init_mbuf_label = stub_init_label_waitcheck,
1033 .mpo_init_mount_label = stub_init_label,
1034 .mpo_init_mount_fs_label = stub_init_label,
1035 .mpo_init_pipe_label = stub_init_label,
1036 .mpo_init_socket_label = stub_init_label_waitcheck,
1037 .mpo_init_socket_peer_label = stub_init_label_waitcheck,
1038 .mpo_init_vnode_label = stub_init_label,
1039 .mpo_destroy_bpfdesc_label = stub_destroy_label,
1040 .mpo_destroy_cred_label = stub_destroy_label,
1041 .mpo_destroy_devfsdirent_label = stub_destroy_label,
1042 .mpo_destroy_ifnet_label = stub_destroy_label,
1043 .mpo_destroy_inpcb_label = stub_destroy_label,
1044 .mpo_destroy_ipq_label = stub_destroy_label,
1045 .mpo_destroy_mbuf_label = stub_destroy_label,
1046 .mpo_destroy_mount_label = stub_destroy_label,
1047 .mpo_destroy_mount_fs_label = stub_destroy_label,
1048 .mpo_destroy_pipe_label = stub_destroy_label,
1049 .mpo_destroy_socket_label = stub_destroy_label,
1050 .mpo_destroy_socket_peer_label = stub_destroy_label,
1051 .mpo_destroy_vnode_label = stub_destroy_label,
1052 .mpo_copy_cred_label = stub_copy_label,
1053 .mpo_copy_mbuf_label = stub_copy_label,
1054 .mpo_copy_pipe_label = stub_copy_label,
1055 .mpo_copy_socket_label = stub_copy_label,
1056 .mpo_copy_vnode_label = stub_copy_label,
1057 .mpo_externalize_cred_label = stub_externalize_label,
1058 .mpo_externalize_ifnet_label = stub_externalize_label,
1059 .mpo_externalize_pipe_label = stub_externalize_label,
1060 .mpo_externalize_socket_label = stub_externalize_label,
1061 .mpo_externalize_socket_peer_label = stub_externalize_label,
1062 .mpo_externalize_vnode_label = stub_externalize_label,
1063 .mpo_internalize_cred_label = stub_internalize_label,
1064 .mpo_internalize_ifnet_label = stub_internalize_label,
1065 .mpo_internalize_pipe_label = stub_internalize_label,
1066 .mpo_internalize_socket_label = stub_internalize_label,
1067 .mpo_internalize_vnode_label = stub_internalize_label,
1068 .mpo_associate_vnode_devfs = stub_associate_vnode_devfs,
1069 .mpo_associate_vnode_extattr = stub_associate_vnode_extattr,
1070 .mpo_associate_vnode_singlelabel = stub_associate_vnode_singlelabel,
1071 .mpo_create_devfs_device = stub_create_devfs_device,
1072 .mpo_create_devfs_directory = stub_create_devfs_directory,
1073 .mpo_create_devfs_symlink = stub_create_devfs_symlink,
1074 .mpo_create_vnode_extattr = stub_create_vnode_extattr,
1075 .mpo_create_mount = stub_create_mount,
1076 .mpo_create_root_mount = stub_create_root_mount,
1077 .mpo_relabel_vnode = stub_relabel_vnode,
1078 .mpo_setlabel_vnode_extattr = stub_setlabel_vnode_extattr,
1079 .mpo_update_devfsdirent = stub_update_devfsdirent,
1080 .mpo_create_mbuf_from_socket = stub_create_mbuf_from_socket,
1081 .mpo_create_pipe = stub_create_pipe,
1082 .mpo_create_socket = stub_create_socket,
1083 .mpo_create_socket_from_socket = stub_create_socket_from_socket,
1084 .mpo_relabel_pipe = stub_relabel_pipe,
1085 .mpo_relabel_socket = stub_relabel_socket,
1086 .mpo_set_socket_peer_from_mbuf = stub_set_socket_peer_from_mbuf,
1087 .mpo_set_socket_peer_from_socket = stub_set_socket_peer_from_socket,
1088 .mpo_create_bpfdesc = stub_create_bpfdesc,
1089 .mpo_create_ifnet = stub_create_ifnet,
1090 .mpo_create_inpcb_from_socket = stub_create_inpcb_from_socket,
1091 .mpo_create_ipq = stub_create_ipq,
1092 .mpo_create_datagram_from_ipq = stub_create_datagram_from_ipq,
1093 .mpo_create_fragment = stub_create_fragment,
1094 .mpo_create_ipq = stub_create_ipq,
1095 .mpo_create_mbuf_from_mbuf = stub_create_mbuf_from_mbuf,
1096 .mpo_create_mbuf_linklayer = stub_create_mbuf_linklayer,
1097 .mpo_create_mbuf_from_bpfdesc = stub_create_mbuf_from_bpfdesc,
1098 .mpo_create_mbuf_from_ifnet = stub_create_mbuf_from_ifnet,
1099 .mpo_create_mbuf_multicast_encap = stub_create_mbuf_multicast_encap,
1100 .mpo_create_mbuf_netlayer = stub_create_mbuf_netlayer,
1101 .mpo_fragment_match = stub_fragment_match,
1102 .mpo_reflect_mbuf_icmp = stub_reflect_mbuf_icmp,
1103 .mpo_reflect_mbuf_tcp = stub_reflect_mbuf_tcp,
1104 .mpo_relabel_ifnet = stub_relabel_ifnet,
1105 .mpo_update_ipq = stub_update_ipq,
1106 .mpo_inpcb_sosetlabel = stub_inpcb_sosetlabel,
1107 .mpo_execve_transition = stub_execve_transition,
1108 .mpo_execve_will_transition = stub_execve_will_transition,
1109 .mpo_create_proc0 = stub_create_proc0,
1110 .mpo_create_proc1 = stub_create_proc1,
1111 .mpo_relabel_cred = stub_relabel_cred,
1112 .mpo_thread_userret = stub_thread_userret,
1113 .mpo_check_bpfdesc_receive = stub_check_bpfdesc_receive,
1114 .mpo_check_cred_relabel = stub_check_cred_relabel,
1115 .mpo_check_cred_visible = stub_check_cred_visible,
1116 .mpo_check_ifnet_relabel = stub_check_ifnet_relabel,
1117 .mpo_check_ifnet_transmit = stub_check_ifnet_transmit,
1118 .mpo_check_inpcb_deliver = stub_check_inpcb_deliver,
1119 .mpo_check_kenv_dump = stub_check_kenv_dump,
1120 .mpo_check_kenv_get = stub_check_kenv_get,
1121 .mpo_check_kenv_set = stub_check_kenv_set,
1122 .mpo_check_kenv_unset = stub_check_kenv_unset,
1123 .mpo_check_kld_load = stub_check_kld_load,
1124 .mpo_check_kld_stat = stub_check_kld_stat,
1125 .mpo_check_kld_unload = stub_check_kld_unload,
1126 .mpo_check_mount_stat = stub_check_mount_stat,
1127 .mpo_check_pipe_ioctl = stub_check_pipe_ioctl,
1128 .mpo_check_pipe_poll = stub_check_pipe_poll,
1129 .mpo_check_pipe_read = stub_check_pipe_read,
1130 .mpo_check_pipe_relabel = stub_check_pipe_relabel,
1131 .mpo_check_pipe_stat = stub_check_pipe_stat,
1132 .mpo_check_pipe_write = stub_check_pipe_write,
1133 .mpo_check_proc_debug = stub_check_proc_debug,
1134 .mpo_check_proc_sched = stub_check_proc_sched,
1135 .mpo_check_proc_signal = stub_check_proc_signal,
1136 .mpo_check_socket_bind = stub_check_socket_bind,
1137 .mpo_check_socket_connect = stub_check_socket_connect,
1138 .mpo_check_socket_deliver = stub_check_socket_deliver,
1139 .mpo_check_socket_listen = stub_check_socket_listen,
1140 .mpo_check_socket_relabel = stub_check_socket_relabel,
1141 .mpo_check_socket_visible = stub_check_socket_visible,
1142 .mpo_check_sysarch_ioperm = stub_check_sysarch_ioperm,
1143 .mpo_check_system_acct = stub_check_system_acct,
1144 .mpo_check_system_reboot = stub_check_system_reboot,
1145 .mpo_check_system_settime = stub_check_system_settime,
1146 .mpo_check_system_swapon = stub_check_system_swapon,
1147 .mpo_check_system_swapoff = stub_check_system_swapoff,
1148 .mpo_check_system_sysctl = stub_check_system_sysctl,
1149 .mpo_check_vnode_access = stub_check_vnode_access,
1150 .mpo_check_vnode_chdir = stub_check_vnode_chdir,
1151 .mpo_check_vnode_chroot = stub_check_vnode_chroot,
1152 .mpo_check_vnode_create = stub_check_vnode_create,
1153 .mpo_check_vnode_delete = stub_check_vnode_delete,
1154 .mpo_check_vnode_deleteacl = stub_check_vnode_deleteacl,
1155 .mpo_check_vnode_deleteextattr = stub_check_vnode_deleteextattr,
1156 .mpo_check_vnode_exec = stub_check_vnode_exec,
1157 .mpo_check_vnode_getacl = stub_check_vnode_getacl,
1158 .mpo_check_vnode_getextattr = stub_check_vnode_getextattr,
1159 .mpo_check_vnode_link = stub_check_vnode_link,
1160 .mpo_check_vnode_listextattr = stub_check_vnode_listextattr,
1161 .mpo_check_vnode_lookup = stub_check_vnode_lookup,
1162 .mpo_check_vnode_mmap = stub_check_vnode_mmap,
1163 .mpo_check_vnode_mprotect = stub_check_vnode_mprotect,
1164 .mpo_check_vnode_open = stub_check_vnode_open,
1165 .mpo_check_vnode_poll = stub_check_vnode_poll,
1166 .mpo_check_vnode_read = stub_check_vnode_read,
1167 .mpo_check_vnode_readdir = stub_check_vnode_readdir,
1168 .mpo_check_vnode_readlink = stub_check_vnode_readlink,
1169 .mpo_check_vnode_relabel = stub_check_vnode_relabel,
1170 .mpo_check_vnode_rename_from = stub_check_vnode_rename_from,
1171 .mpo_check_vnode_rename_to = stub_check_vnode_rename_to,
1172 .mpo_check_vnode_revoke = stub_check_vnode_revoke,
1173 .mpo_check_vnode_setacl = stub_check_vnode_setacl,
1174 .mpo_check_vnode_setextattr = stub_check_vnode_setextattr,
1175 .mpo_check_vnode_setflags = stub_check_vnode_setflags,
1176 .mpo_check_vnode_setmode = stub_check_vnode_setmode,
1177 .mpo_check_vnode_setowner = stub_check_vnode_setowner,
1178 .mpo_check_vnode_setutimes = stub_check_vnode_setutimes,
1179 .mpo_check_vnode_stat = stub_check_vnode_stat,
1180 .mpo_check_vnode_write = stub_check_vnode_write,
1181};
1182
1183MAC_POLICY_SET(&mac_stub_ops, mac_stub, "TrustedBSD MAC/Stub",
1184 MPC_LOADTIME_FLAG_UNLOADOK, NULL);