2 * Copyright (c) 1999-2002, 2007-2011 Robert N. M. Watson
3 * Copyright (c) 2001-2005 McAfee, Inc.
4 * Copyright (c) 2006 SPARTA, Inc.
7 * This software was developed by Robert Watson for the TrustedBSD Project.
9 * This software was developed for the FreeBSD Project in part by McAfee
10 * Research, the Security Research Division of McAfee, Inc. under
11 * DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA
12 * CHATS research program.
14 * This software was enhanced by SPARTA ISSO under SPAWAR contract
15 * N66001-04-C-6019 ("SEFOS").
17 * This software was developed at the University of Cambridge Computer
18 * Laboratory with support from a grant from Google, Inc.
20 * Redistribution and use in source and binary forms, with or without
21 * modification, are permitted provided that the following conditions
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.
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
45 * Developed by the TrustedBSD Project.
47 * MLS fixed label mandatory confidentiality policy.
50 #include <sys/types.h>
51 #include <sys/param.h>
54 #include <sys/extattr.h>
55 #include <sys/kernel.h>
58 #include <sys/malloc.h>
59 #include <sys/mount.h>
62 #include <sys/systm.h>
63 #include <sys/sysproto.h>
64 #include <sys/sysent.h>
65 #include <sys/systm.h>
66 #include <sys/vnode.h>
68 #include <sys/socket.h>
69 #include <sys/socketvar.h>
72 #include <sys/sysctl.h>
77 #include <fs/devfs/devfs.h>
79 #include <net/bpfdesc.h>
81 #include <net/if_types.h>
82 #include <net/if_var.h>
84 #include <netinet/in.h>
85 #include <netinet/in_pcb.h>
86 #include <netinet/ip_var.h>
91 #include <security/mac/mac_policy.h>
92 #include <security/mac_mls/mac_mls.h>
94 SYSCTL_DECL(_security_mac);
96 static SYSCTL_NODE(_security_mac, OID_AUTO, mls, CTLFLAG_RW, 0,
97 "TrustedBSD mac_mls policy controls");
99 static int mls_label_size = sizeof(struct mac_mls);
100 SYSCTL_INT(_security_mac_mls, OID_AUTO, label_size, CTLFLAG_RD,
101 &mls_label_size, 0, "Size of struct mac_mls");
103 static int mls_enabled = 1;
104 SYSCTL_INT(_security_mac_mls, OID_AUTO, enabled, CTLFLAG_RWTUN, &mls_enabled, 0,
105 "Enforce MAC/MLS policy");
107 static int destroyed_not_inited;
108 SYSCTL_INT(_security_mac_mls, OID_AUTO, destroyed_not_inited, CTLFLAG_RD,
109 &destroyed_not_inited, 0, "Count of labels destroyed but not inited");
111 static int ptys_equal = 0;
112 SYSCTL_INT(_security_mac_mls, OID_AUTO, ptys_equal, CTLFLAG_RWTUN,
113 &ptys_equal, 0, "Label pty devices as mls/equal on create");
115 static int revocation_enabled = 0;
116 SYSCTL_INT(_security_mac_mls, OID_AUTO, revocation_enabled, CTLFLAG_RWTUN,
117 &revocation_enabled, 0, "Revoke access to objects on relabel");
119 static int max_compartments = MAC_MLS_MAX_COMPARTMENTS;
120 SYSCTL_INT(_security_mac_mls, OID_AUTO, max_compartments, CTLFLAG_RD,
121 &max_compartments, 0, "Maximum compartments the policy supports");
124 #define SLOT(l) ((struct mac_mls *)mac_label_get((l), mls_slot))
125 #define SLOT_SET(l, val) mac_label_set((l), mls_slot, (uintptr_t)(val))
127 static uma_zone_t zone_mls;
130 mls_bit_set_empty(u_char *set) {
133 for (i = 0; i < MAC_MLS_MAX_COMPARTMENTS >> 3; i++)
139 static struct mac_mls *
143 return (uma_zalloc(zone_mls, flag | M_ZERO));
147 mls_free(struct mac_mls *mm)
151 uma_zfree(zone_mls, mm);
153 atomic_add_int(&destroyed_not_inited, 1);
157 mls_atmostflags(struct mac_mls *mm, int flags)
160 if ((mm->mm_flags & flags) != mm->mm_flags)
166 mls_dominate_element(struct mac_mls_element *a, struct mac_mls_element *b)
170 switch (a->mme_type) {
171 case MAC_MLS_TYPE_EQUAL:
172 case MAC_MLS_TYPE_HIGH:
175 case MAC_MLS_TYPE_LOW:
176 switch (b->mme_type) {
177 case MAC_MLS_TYPE_LEVEL:
178 case MAC_MLS_TYPE_HIGH:
181 case MAC_MLS_TYPE_EQUAL:
182 case MAC_MLS_TYPE_LOW:
186 panic("mls_dominate_element: b->mme_type invalid");
189 case MAC_MLS_TYPE_LEVEL:
190 switch (b->mme_type) {
191 case MAC_MLS_TYPE_EQUAL:
192 case MAC_MLS_TYPE_LOW:
195 case MAC_MLS_TYPE_HIGH:
198 case MAC_MLS_TYPE_LEVEL:
199 for (bit = 1; bit <= MAC_MLS_MAX_COMPARTMENTS; bit++)
200 if (!MAC_MLS_BIT_TEST(bit,
201 a->mme_compartments) &&
202 MAC_MLS_BIT_TEST(bit, b->mme_compartments))
204 return (a->mme_level >= b->mme_level);
207 panic("mls_dominate_element: b->mme_type invalid");
211 panic("mls_dominate_element: a->mme_type invalid");
218 mls_range_in_range(struct mac_mls *rangea, struct mac_mls *rangeb)
221 return (mls_dominate_element(&rangeb->mm_rangehigh,
222 &rangea->mm_rangehigh) &&
223 mls_dominate_element(&rangea->mm_rangelow,
224 &rangeb->mm_rangelow));
228 mls_effective_in_range(struct mac_mls *effective, struct mac_mls *range)
231 KASSERT((effective->mm_flags & MAC_MLS_FLAG_EFFECTIVE) != 0,
232 ("mls_effective_in_range: a not effective"));
233 KASSERT((range->mm_flags & MAC_MLS_FLAG_RANGE) != 0,
234 ("mls_effective_in_range: b not range"));
236 return (mls_dominate_element(&range->mm_rangehigh,
237 &effective->mm_effective) &&
238 mls_dominate_element(&effective->mm_effective,
239 &range->mm_rangelow));
245 mls_dominate_effective(struct mac_mls *a, struct mac_mls *b)
247 KASSERT((a->mm_flags & MAC_MLS_FLAG_EFFECTIVE) != 0,
248 ("mls_dominate_effective: a not effective"));
249 KASSERT((b->mm_flags & MAC_MLS_FLAG_EFFECTIVE) != 0,
250 ("mls_dominate_effective: b not effective"));
252 return (mls_dominate_element(&a->mm_effective, &b->mm_effective));
256 mls_equal_element(struct mac_mls_element *a, struct mac_mls_element *b)
259 if (a->mme_type == MAC_MLS_TYPE_EQUAL ||
260 b->mme_type == MAC_MLS_TYPE_EQUAL)
263 return (a->mme_type == b->mme_type && a->mme_level == b->mme_level);
267 mls_equal_effective(struct mac_mls *a, struct mac_mls *b)
270 KASSERT((a->mm_flags & MAC_MLS_FLAG_EFFECTIVE) != 0,
271 ("mls_equal_effective: a not effective"));
272 KASSERT((b->mm_flags & MAC_MLS_FLAG_EFFECTIVE) != 0,
273 ("mls_equal_effective: b not effective"));
275 return (mls_equal_element(&a->mm_effective, &b->mm_effective));
279 mls_contains_equal(struct mac_mls *mm)
282 if (mm->mm_flags & MAC_MLS_FLAG_EFFECTIVE)
283 if (mm->mm_effective.mme_type == MAC_MLS_TYPE_EQUAL)
286 if (mm->mm_flags & MAC_MLS_FLAG_RANGE) {
287 if (mm->mm_rangelow.mme_type == MAC_MLS_TYPE_EQUAL)
289 if (mm->mm_rangehigh.mme_type == MAC_MLS_TYPE_EQUAL)
297 mls_subject_privileged(struct mac_mls *mm)
300 KASSERT((mm->mm_flags & MAC_MLS_FLAGS_BOTH) == MAC_MLS_FLAGS_BOTH,
301 ("mls_subject_privileged: subject doesn't have both labels"));
303 /* If the effective is EQUAL, it's ok. */
304 if (mm->mm_effective.mme_type == MAC_MLS_TYPE_EQUAL)
307 /* If either range endpoint is EQUAL, it's ok. */
308 if (mm->mm_rangelow.mme_type == MAC_MLS_TYPE_EQUAL ||
309 mm->mm_rangehigh.mme_type == MAC_MLS_TYPE_EQUAL)
312 /* If the range is low-high, it's ok. */
313 if (mm->mm_rangelow.mme_type == MAC_MLS_TYPE_LOW &&
314 mm->mm_rangehigh.mme_type == MAC_MLS_TYPE_HIGH)
322 mls_valid(struct mac_mls *mm)
325 if (mm->mm_flags & MAC_MLS_FLAG_EFFECTIVE) {
326 switch (mm->mm_effective.mme_type) {
327 case MAC_MLS_TYPE_LEVEL:
330 case MAC_MLS_TYPE_EQUAL:
331 case MAC_MLS_TYPE_HIGH:
332 case MAC_MLS_TYPE_LOW:
333 if (mm->mm_effective.mme_level != 0 ||
334 !MAC_MLS_BIT_SET_EMPTY(
335 mm->mm_effective.mme_compartments))
343 if (mm->mm_effective.mme_type != MAC_MLS_TYPE_UNDEF)
347 if (mm->mm_flags & MAC_MLS_FLAG_RANGE) {
348 switch (mm->mm_rangelow.mme_type) {
349 case MAC_MLS_TYPE_LEVEL:
352 case MAC_MLS_TYPE_EQUAL:
353 case MAC_MLS_TYPE_HIGH:
354 case MAC_MLS_TYPE_LOW:
355 if (mm->mm_rangelow.mme_level != 0 ||
356 !MAC_MLS_BIT_SET_EMPTY(
357 mm->mm_rangelow.mme_compartments))
365 switch (mm->mm_rangehigh.mme_type) {
366 case MAC_MLS_TYPE_LEVEL:
369 case MAC_MLS_TYPE_EQUAL:
370 case MAC_MLS_TYPE_HIGH:
371 case MAC_MLS_TYPE_LOW:
372 if (mm->mm_rangehigh.mme_level != 0 ||
373 !MAC_MLS_BIT_SET_EMPTY(
374 mm->mm_rangehigh.mme_compartments))
381 if (!mls_dominate_element(&mm->mm_rangehigh,
385 if (mm->mm_rangelow.mme_type != MAC_MLS_TYPE_UNDEF ||
386 mm->mm_rangehigh.mme_type != MAC_MLS_TYPE_UNDEF)
394 mls_set_range(struct mac_mls *mm, u_short typelow, u_short levellow,
395 u_char *compartmentslow, u_short typehigh, u_short levelhigh,
396 u_char *compartmentshigh)
399 mm->mm_rangelow.mme_type = typelow;
400 mm->mm_rangelow.mme_level = levellow;
401 if (compartmentslow != NULL)
402 memcpy(mm->mm_rangelow.mme_compartments, compartmentslow,
403 sizeof(mm->mm_rangelow.mme_compartments));
404 mm->mm_rangehigh.mme_type = typehigh;
405 mm->mm_rangehigh.mme_level = levelhigh;
406 if (compartmentshigh != NULL)
407 memcpy(mm->mm_rangehigh.mme_compartments, compartmentshigh,
408 sizeof(mm->mm_rangehigh.mme_compartments));
409 mm->mm_flags |= MAC_MLS_FLAG_RANGE;
413 mls_set_effective(struct mac_mls *mm, u_short type, u_short level,
414 u_char *compartments)
417 mm->mm_effective.mme_type = type;
418 mm->mm_effective.mme_level = level;
419 if (compartments != NULL)
420 memcpy(mm->mm_effective.mme_compartments, compartments,
421 sizeof(mm->mm_effective.mme_compartments));
422 mm->mm_flags |= MAC_MLS_FLAG_EFFECTIVE;
426 mls_copy_range(struct mac_mls *labelfrom, struct mac_mls *labelto)
429 KASSERT((labelfrom->mm_flags & MAC_MLS_FLAG_RANGE) != 0,
430 ("mls_copy_range: labelfrom not range"));
432 labelto->mm_rangelow = labelfrom->mm_rangelow;
433 labelto->mm_rangehigh = labelfrom->mm_rangehigh;
434 labelto->mm_flags |= MAC_MLS_FLAG_RANGE;
438 mls_copy_effective(struct mac_mls *labelfrom, struct mac_mls *labelto)
441 KASSERT((labelfrom->mm_flags & MAC_MLS_FLAG_EFFECTIVE) != 0,
442 ("mls_copy_effective: labelfrom not effective"));
444 labelto->mm_effective = labelfrom->mm_effective;
445 labelto->mm_flags |= MAC_MLS_FLAG_EFFECTIVE;
449 mls_copy(struct mac_mls *source, struct mac_mls *dest)
452 if (source->mm_flags & MAC_MLS_FLAG_EFFECTIVE)
453 mls_copy_effective(source, dest);
454 if (source->mm_flags & MAC_MLS_FLAG_RANGE)
455 mls_copy_range(source, dest);
459 * Policy module operations.
462 mls_init(struct mac_policy_conf *conf)
465 zone_mls = uma_zcreate("mac_mls", sizeof(struct mac_mls), NULL,
466 NULL, NULL, NULL, UMA_ALIGN_PTR, 0);
473 mls_init_label(struct label *label)
476 SLOT_SET(label, mls_alloc(M_WAITOK));
480 mls_init_label_waitcheck(struct label *label, int flag)
483 SLOT_SET(label, mls_alloc(flag));
484 if (SLOT(label) == NULL)
491 mls_destroy_label(struct label *label)
494 mls_free(SLOT(label));
495 SLOT_SET(label, NULL);
499 * mls_element_to_string() accepts an sbuf and MLS element. It converts the
500 * MLS element to a string and stores the result in the sbuf; if there isn't
501 * space in the sbuf, -1 is returned.
504 mls_element_to_string(struct sbuf *sb, struct mac_mls_element *element)
508 switch (element->mme_type) {
509 case MAC_MLS_TYPE_HIGH:
510 return (sbuf_printf(sb, "high"));
512 case MAC_MLS_TYPE_LOW:
513 return (sbuf_printf(sb, "low"));
515 case MAC_MLS_TYPE_EQUAL:
516 return (sbuf_printf(sb, "equal"));
518 case MAC_MLS_TYPE_LEVEL:
519 if (sbuf_printf(sb, "%d", element->mme_level) == -1)
523 for (i = 1; i <= MAC_MLS_MAX_COMPARTMENTS; i++) {
524 if (MAC_MLS_BIT_TEST(i, element->mme_compartments)) {
526 if (sbuf_putc(sb, ':') == -1)
528 if (sbuf_printf(sb, "%d", i) == -1)
532 if (sbuf_printf(sb, "+%d", i) == -1)
540 panic("mls_element_to_string: invalid type (%d)",
546 * mls_to_string() converts an MLS label to a string, and places the results
547 * in the passed sbuf. It returns 0 on success, or EINVAL if there isn't
548 * room in the sbuf. Note: the sbuf will be modified even in a failure case,
549 * so the caller may need to revert the sbuf by restoring the offset if
553 mls_to_string(struct sbuf *sb, struct mac_mls *mm)
556 if (mm->mm_flags & MAC_MLS_FLAG_EFFECTIVE) {
557 if (mls_element_to_string(sb, &mm->mm_effective) == -1)
561 if (mm->mm_flags & MAC_MLS_FLAG_RANGE) {
562 if (sbuf_putc(sb, '(') == -1)
565 if (mls_element_to_string(sb, &mm->mm_rangelow) == -1)
568 if (sbuf_putc(sb, '-') == -1)
571 if (mls_element_to_string(sb, &mm->mm_rangehigh) == -1)
574 if (sbuf_putc(sb, ')') == -1)
582 mls_externalize_label(struct label *label, char *element_name,
583 struct sbuf *sb, int *claimed)
587 if (strcmp(MAC_MLS_LABEL_NAME, element_name) != 0)
594 return (mls_to_string(sb, mm));
598 mls_parse_element(struct mac_mls_element *element, char *string)
600 char *compartment, *end, *level;
603 if (strcmp(string, "high") == 0 || strcmp(string, "hi") == 0) {
604 element->mme_type = MAC_MLS_TYPE_HIGH;
605 element->mme_level = MAC_MLS_TYPE_UNDEF;
606 } else if (strcmp(string, "low") == 0 || strcmp(string, "lo") == 0) {
607 element->mme_type = MAC_MLS_TYPE_LOW;
608 element->mme_level = MAC_MLS_TYPE_UNDEF;
609 } else if (strcmp(string, "equal") == 0 ||
610 strcmp(string, "eq") == 0) {
611 element->mme_type = MAC_MLS_TYPE_EQUAL;
612 element->mme_level = MAC_MLS_TYPE_UNDEF;
614 element->mme_type = MAC_MLS_TYPE_LEVEL;
617 * Numeric level piece of the element.
619 level = strsep(&string, ":");
620 value = strtol(level, &end, 10);
621 if (end == level || *end != '\0')
623 if (value < 0 || value > 65535)
625 element->mme_level = value;
628 * Optional compartment piece of the element. If none are
629 * included, we assume that the label has no compartments.
636 while ((compartment = strsep(&string, "+")) != NULL) {
637 value = strtol(compartment, &end, 10);
638 if (compartment == end || *end != '\0')
640 if (value < 1 || value > MAC_MLS_MAX_COMPARTMENTS)
642 MAC_MLS_BIT_SET(value, element->mme_compartments);
650 * Note: destructively consumes the string, make a local copy before calling
651 * if that's a problem.
654 mls_parse(struct mac_mls *mm, char *string)
656 char *rangehigh, *rangelow, *effective;
659 effective = strsep(&string, "(");
660 if (*effective == '\0')
663 if (string != NULL) {
664 rangelow = strsep(&string, "-");
667 rangehigh = strsep(&string, ")");
677 KASSERT((rangelow != NULL && rangehigh != NULL) ||
678 (rangelow == NULL && rangehigh == NULL),
679 ("mls_parse: range mismatch"));
681 bzero(mm, sizeof(*mm));
682 if (effective != NULL) {
683 error = mls_parse_element(&mm->mm_effective, effective);
686 mm->mm_flags |= MAC_MLS_FLAG_EFFECTIVE;
689 if (rangelow != NULL) {
690 error = mls_parse_element(&mm->mm_rangelow, rangelow);
693 error = mls_parse_element(&mm->mm_rangehigh, rangehigh);
696 mm->mm_flags |= MAC_MLS_FLAG_RANGE;
699 error = mls_valid(mm);
707 mls_internalize_label(struct label *label, char *element_name,
708 char *element_data, int *claimed)
710 struct mac_mls *mm, mm_temp;
713 if (strcmp(MAC_MLS_LABEL_NAME, element_name) != 0)
718 error = mls_parse(&mm_temp, element_data);
729 mls_copy_label(struct label *src, struct label *dest)
732 *SLOT(dest) = *SLOT(src);
736 * Object-specific entry point implementations are sorted alphabetically by
737 * object type name and then by operation.
740 mls_bpfdesc_check_receive(struct bpf_d *d, struct label *dlabel,
741 struct ifnet *ifp, struct label *ifplabel)
743 struct mac_mls *a, *b;
751 if (mls_equal_effective(a, b))
757 mls_bpfdesc_create(struct ucred *cred, struct bpf_d *d, struct label *dlabel)
759 struct mac_mls *source, *dest;
761 source = SLOT(cred->cr_label);
764 mls_copy_effective(source, dest);
768 mls_bpfdesc_create_mbuf(struct bpf_d *d, struct label *dlabel,
769 struct mbuf *m, struct label *mlabel)
771 struct mac_mls *source, *dest;
773 source = SLOT(dlabel);
776 mls_copy_effective(source, dest);
780 mls_cred_associate_nfsd(struct ucred *cred)
782 struct mac_mls *label;
784 label = SLOT(cred->cr_label);
785 mls_set_effective(label, MAC_MLS_TYPE_LOW, 0, NULL);
786 mls_set_range(label, MAC_MLS_TYPE_LOW, 0, NULL, MAC_MLS_TYPE_HIGH, 0,
791 mls_cred_check_relabel(struct ucred *cred, struct label *newlabel)
793 struct mac_mls *subj, *new;
796 subj = SLOT(cred->cr_label);
797 new = SLOT(newlabel);
800 * If there is an MLS label update for the credential, it may be an
801 * update of effective, range, or both.
803 error = mls_atmostflags(new, MAC_MLS_FLAGS_BOTH);
808 * If the MLS label is to be changed, authorize as appropriate.
810 if (new->mm_flags & MAC_MLS_FLAGS_BOTH) {
812 * If the change request modifies both the MLS label
813 * effective and range, check that the new effective will be
816 if ((new->mm_flags & MAC_MLS_FLAGS_BOTH) ==
817 MAC_MLS_FLAGS_BOTH && !mls_effective_in_range(new, new))
821 * To change the MLS effective label on a credential, the new
822 * effective label must be in the current range.
824 if (new->mm_flags & MAC_MLS_FLAG_EFFECTIVE &&
825 !mls_effective_in_range(new, subj))
829 * To change the MLS range label on a credential, the new
830 * range must be in the current range.
832 if (new->mm_flags & MAC_MLS_FLAG_RANGE &&
833 !mls_range_in_range(new, subj))
837 * To have EQUAL in any component of the new credential MLS
838 * label, the subject must already have EQUAL in their label.
840 if (mls_contains_equal(new)) {
841 error = mls_subject_privileged(subj);
851 mls_cred_check_visible(struct ucred *cr1, struct ucred *cr2)
853 struct mac_mls *subj, *obj;
858 subj = SLOT(cr1->cr_label);
859 obj = SLOT(cr2->cr_label);
862 if (!mls_dominate_effective(subj, obj))
869 mls_cred_create_init(struct ucred *cred)
871 struct mac_mls *dest;
873 dest = SLOT(cred->cr_label);
875 mls_set_effective(dest, MAC_MLS_TYPE_LOW, 0, NULL);
876 mls_set_range(dest, MAC_MLS_TYPE_LOW, 0, NULL, MAC_MLS_TYPE_HIGH, 0,
881 mls_cred_create_swapper(struct ucred *cred)
883 struct mac_mls *dest;
885 dest = SLOT(cred->cr_label);
887 mls_set_effective(dest, MAC_MLS_TYPE_EQUAL, 0, NULL);
888 mls_set_range(dest, MAC_MLS_TYPE_LOW, 0, NULL, MAC_MLS_TYPE_HIGH, 0,
893 mls_cred_relabel(struct ucred *cred, struct label *newlabel)
895 struct mac_mls *source, *dest;
897 source = SLOT(newlabel);
898 dest = SLOT(cred->cr_label);
900 mls_copy(source, dest);
904 mls_devfs_create_device(struct ucred *cred, struct mount *mp,
905 struct cdev *dev, struct devfs_dirent *de, struct label *delabel)
913 if (strcmp(dn, "null") == 0 ||
914 strcmp(dn, "zero") == 0 ||
915 strcmp(dn, "random") == 0 ||
916 strncmp(dn, "fd/", strlen("fd/")) == 0)
917 mls_type = MAC_MLS_TYPE_EQUAL;
918 else if (strcmp(dn, "kmem") == 0 ||
919 strcmp(dn, "mem") == 0)
920 mls_type = MAC_MLS_TYPE_HIGH;
921 else if (ptys_equal &&
922 (strncmp(dn, "ttyp", strlen("ttyp")) == 0 ||
923 strncmp(dn, "pts/", strlen("pts/")) == 0 ||
924 strncmp(dn, "ptyp", strlen("ptyp")) == 0))
925 mls_type = MAC_MLS_TYPE_EQUAL;
927 mls_type = MAC_MLS_TYPE_LOW;
928 mls_set_effective(mm, mls_type, 0, NULL);
932 mls_devfs_create_directory(struct mount *mp, char *dirname, int dirnamelen,
933 struct devfs_dirent *de, struct label *delabel)
938 mls_set_effective(mm, MAC_MLS_TYPE_LOW, 0, NULL);
942 mls_devfs_create_symlink(struct ucred *cred, struct mount *mp,
943 struct devfs_dirent *dd, struct label *ddlabel, struct devfs_dirent *de,
944 struct label *delabel)
946 struct mac_mls *source, *dest;
948 source = SLOT(cred->cr_label);
949 dest = SLOT(delabel);
951 mls_copy_effective(source, dest);
955 mls_devfs_update(struct mount *mp, struct devfs_dirent *de,
956 struct label *delabel, struct vnode *vp, struct label *vplabel)
958 struct mac_mls *source, *dest;
960 source = SLOT(vplabel);
961 dest = SLOT(delabel);
963 mls_copy_effective(source, dest);
967 mls_devfs_vnode_associate(struct mount *mp, struct label *mplabel,
968 struct devfs_dirent *de, struct label *delabel, struct vnode *vp,
969 struct label *vplabel)
971 struct mac_mls *source, *dest;
973 source = SLOT(delabel);
974 dest = SLOT(vplabel);
976 mls_copy_effective(source, dest);
980 mls_ifnet_check_relabel(struct ucred *cred, struct ifnet *ifp,
981 struct label *ifplabel, struct label *newlabel)
983 struct mac_mls *subj, *new;
986 subj = SLOT(cred->cr_label);
987 new = SLOT(newlabel);
990 * If there is an MLS label update for the interface, it may be an
991 * update of effective, range, or both.
993 error = mls_atmostflags(new, MAC_MLS_FLAGS_BOTH);
998 * Relabeling network interfaces requires MLS privilege.
1000 return (mls_subject_privileged(subj));
1004 mls_ifnet_check_transmit(struct ifnet *ifp, struct label *ifplabel,
1005 struct mbuf *m, struct label *mlabel)
1007 struct mac_mls *p, *i;
1015 return (mls_effective_in_range(p, i) ? 0 : EACCES);
1019 mls_ifnet_create(struct ifnet *ifp, struct label *ifplabel)
1021 struct mac_mls *dest;
1024 dest = SLOT(ifplabel);
1026 if (ifp->if_type == IFT_LOOP)
1027 type = MAC_MLS_TYPE_EQUAL;
1029 type = MAC_MLS_TYPE_LOW;
1031 mls_set_effective(dest, type, 0, NULL);
1032 mls_set_range(dest, type, 0, NULL, type, 0, NULL);
1036 mls_ifnet_create_mbuf(struct ifnet *ifp, struct label *ifplabel,
1037 struct mbuf *m, struct label *mlabel)
1039 struct mac_mls *source, *dest;
1041 source = SLOT(ifplabel);
1042 dest = SLOT(mlabel);
1044 mls_copy_effective(source, dest);
1048 mls_ifnet_relabel(struct ucred *cred, struct ifnet *ifp,
1049 struct label *ifplabel, struct label *newlabel)
1051 struct mac_mls *source, *dest;
1053 source = SLOT(newlabel);
1054 dest = SLOT(ifplabel);
1056 mls_copy(source, dest);
1060 mls_inpcb_check_deliver(struct inpcb *inp, struct label *inplabel,
1061 struct mbuf *m, struct label *mlabel)
1063 struct mac_mls *p, *i;
1071 return (mls_equal_effective(p, i) ? 0 : EACCES);
1075 mls_inpcb_check_visible(struct ucred *cred, struct inpcb *inp,
1076 struct label *inplabel)
1078 struct mac_mls *subj, *obj;
1083 subj = SLOT(cred->cr_label);
1084 obj = SLOT(inplabel);
1086 if (!mls_dominate_effective(subj, obj))
1093 mls_inpcb_create(struct socket *so, struct label *solabel, struct inpcb *inp,
1094 struct label *inplabel)
1096 struct mac_mls *source, *dest;
1098 source = SLOT(solabel);
1099 dest = SLOT(inplabel);
1101 mls_copy_effective(source, dest);
1105 mls_inpcb_create_mbuf(struct inpcb *inp, struct label *inplabel,
1106 struct mbuf *m, struct label *mlabel)
1108 struct mac_mls *source, *dest;
1110 source = SLOT(inplabel);
1111 dest = SLOT(mlabel);
1113 mls_copy_effective(source, dest);
1117 mls_inpcb_sosetlabel(struct socket *so, struct label *solabel,
1118 struct inpcb *inp, struct label *inplabel)
1120 struct mac_mls *source, *dest;
1122 SOCK_LOCK_ASSERT(so);
1124 source = SLOT(solabel);
1125 dest = SLOT(inplabel);
1127 mls_copy(source, dest);
1131 mls_ip6q_create(struct mbuf *m, struct label *mlabel, struct ip6q *q6,
1132 struct label *q6label)
1134 struct mac_mls *source, *dest;
1136 source = SLOT(mlabel);
1137 dest = SLOT(q6label);
1139 mls_copy_effective(source, dest);
1143 mls_ip6q_match(struct mbuf *m, struct label *mlabel, struct ip6q *q6,
1144 struct label *q6label)
1146 struct mac_mls *a, *b;
1151 return (mls_equal_effective(a, b));
1155 mls_ip6q_reassemble(struct ip6q *q6, struct label *q6label, struct mbuf *m,
1156 struct label *mlabel)
1158 struct mac_mls *source, *dest;
1160 source = SLOT(q6label);
1161 dest = SLOT(mlabel);
1163 /* Just use the head, since we require them all to match. */
1164 mls_copy_effective(source, dest);
1168 mls_ip6q_update(struct mbuf *m, struct label *mlabel, struct ip6q *q6,
1169 struct label *q6label)
1172 /* NOOP: we only accept matching labels, so no need to update */
1176 mls_ipq_create(struct mbuf *m, struct label *mlabel, struct ipq *q,
1177 struct label *qlabel)
1179 struct mac_mls *source, *dest;
1181 source = SLOT(mlabel);
1182 dest = SLOT(qlabel);
1184 mls_copy_effective(source, dest);
1188 mls_ipq_match(struct mbuf *m, struct label *mlabel, struct ipq *q,
1189 struct label *qlabel)
1191 struct mac_mls *a, *b;
1196 return (mls_equal_effective(a, b));
1200 mls_ipq_reassemble(struct ipq *q, struct label *qlabel, struct mbuf *m,
1201 struct label *mlabel)
1203 struct mac_mls *source, *dest;
1205 source = SLOT(qlabel);
1206 dest = SLOT(mlabel);
1208 /* Just use the head, since we require them all to match. */
1209 mls_copy_effective(source, dest);
1213 mls_ipq_update(struct mbuf *m, struct label *mlabel, struct ipq *q,
1214 struct label *qlabel)
1217 /* NOOP: we only accept matching labels, so no need to update */
1221 mls_mount_check_stat(struct ucred *cred, struct mount *mp,
1222 struct label *mntlabel)
1224 struct mac_mls *subj, *obj;
1229 subj = SLOT(cred->cr_label);
1230 obj = SLOT(mntlabel);
1232 if (!mls_dominate_effective(subj, obj))
1239 mls_mount_create(struct ucred *cred, struct mount *mp, struct label *mplabel)
1241 struct mac_mls *source, *dest;
1243 source = SLOT(cred->cr_label);
1244 dest = SLOT(mplabel);
1246 mls_copy_effective(source, dest);
1250 mls_netinet_arp_send(struct ifnet *ifp, struct label *ifplabel,
1251 struct mbuf *m, struct label *mlabel)
1253 struct mac_mls *dest;
1255 dest = SLOT(mlabel);
1257 mls_set_effective(dest, MAC_MLS_TYPE_EQUAL, 0, NULL);
1261 mls_netinet_firewall_reply(struct mbuf *mrecv, struct label *mrecvlabel,
1262 struct mbuf *msend, struct label *msendlabel)
1264 struct mac_mls *source, *dest;
1266 source = SLOT(mrecvlabel);
1267 dest = SLOT(msendlabel);
1269 mls_copy_effective(source, dest);
1273 mls_netinet_firewall_send(struct mbuf *m, struct label *mlabel)
1275 struct mac_mls *dest;
1277 dest = SLOT(mlabel);
1279 /* XXX: where is the label for the firewall really coming from? */
1280 mls_set_effective(dest, MAC_MLS_TYPE_EQUAL, 0, NULL);
1284 mls_netinet_fragment(struct mbuf *m, struct label *mlabel, struct mbuf *frag,
1285 struct label *fraglabel)
1287 struct mac_mls *source, *dest;
1289 source = SLOT(mlabel);
1290 dest = SLOT(fraglabel);
1292 mls_copy_effective(source, dest);
1296 mls_netinet_icmp_reply(struct mbuf *mrecv, struct label *mrecvlabel,
1297 struct mbuf *msend, struct label *msendlabel)
1299 struct mac_mls *source, *dest;
1301 source = SLOT(mrecvlabel);
1302 dest = SLOT(msendlabel);
1304 mls_copy_effective(source, dest);
1308 mls_netinet_igmp_send(struct ifnet *ifp, struct label *ifplabel,
1309 struct mbuf *m, struct label *mlabel)
1311 struct mac_mls *dest;
1313 dest = SLOT(mlabel);
1315 mls_set_effective(dest, MAC_MLS_TYPE_EQUAL, 0, NULL);
1319 mls_netinet6_nd6_send(struct ifnet *ifp, struct label *ifplabel,
1320 struct mbuf *m, struct label *mlabel)
1322 struct mac_mls *dest;
1324 dest = SLOT(mlabel);
1326 mls_set_effective(dest, MAC_MLS_TYPE_EQUAL, 0, NULL);
1330 mls_pipe_check_ioctl(struct ucred *cred, struct pipepair *pp,
1331 struct label *pplabel, unsigned long cmd, void /* caddr_t */ *data)
1337 /* XXX: This will be implemented soon... */
1343 mls_pipe_check_poll(struct ucred *cred, struct pipepair *pp,
1344 struct label *pplabel)
1346 struct mac_mls *subj, *obj;
1351 subj = SLOT(cred->cr_label);
1352 obj = SLOT(pplabel);
1354 if (!mls_dominate_effective(subj, obj))
1361 mls_pipe_check_read(struct ucred *cred, struct pipepair *pp,
1362 struct label *pplabel)
1364 struct mac_mls *subj, *obj;
1369 subj = SLOT(cred->cr_label);
1370 obj = SLOT(pplabel);
1372 if (!mls_dominate_effective(subj, obj))
1379 mls_pipe_check_relabel(struct ucred *cred, struct pipepair *pp,
1380 struct label *pplabel, struct label *newlabel)
1382 struct mac_mls *subj, *obj, *new;
1385 new = SLOT(newlabel);
1386 subj = SLOT(cred->cr_label);
1387 obj = SLOT(pplabel);
1390 * If there is an MLS label update for a pipe, it must be a effective
1393 error = mls_atmostflags(new, MAC_MLS_FLAG_EFFECTIVE);
1398 * To perform a relabel of a pipe (MLS label or not), MLS must
1399 * authorize the relabel.
1401 if (!mls_effective_in_range(obj, subj))
1405 * If the MLS label is to be changed, authorize as appropriate.
1407 if (new->mm_flags & MAC_MLS_FLAG_EFFECTIVE) {
1409 * To change the MLS label on a pipe, the new pipe label must
1410 * be in the subject range.
1412 if (!mls_effective_in_range(new, subj))
1416 * To change the MLS label on a pipe to be EQUAL, the subject
1417 * must have appropriate privilege.
1419 if (mls_contains_equal(new)) {
1420 error = mls_subject_privileged(subj);
1430 mls_pipe_check_stat(struct ucred *cred, struct pipepair *pp,
1431 struct label *pplabel)
1433 struct mac_mls *subj, *obj;
1438 subj = SLOT(cred->cr_label);
1439 obj = SLOT(pplabel);
1441 if (!mls_dominate_effective(subj, obj))
1448 mls_pipe_check_write(struct ucred *cred, struct pipepair *pp,
1449 struct label *pplabel)
1451 struct mac_mls *subj, *obj;
1456 subj = SLOT(cred->cr_label);
1457 obj = SLOT(pplabel);
1459 if (!mls_dominate_effective(obj, subj))
1466 mls_pipe_create(struct ucred *cred, struct pipepair *pp,
1467 struct label *pplabel)
1469 struct mac_mls *source, *dest;
1471 source = SLOT(cred->cr_label);
1472 dest = SLOT(pplabel);
1474 mls_copy_effective(source, dest);
1478 mls_pipe_relabel(struct ucred *cred, struct pipepair *pp,
1479 struct label *pplabel, struct label *newlabel)
1481 struct mac_mls *source, *dest;
1483 source = SLOT(newlabel);
1484 dest = SLOT(pplabel);
1486 mls_copy(source, dest);
1490 mls_posixsem_check_openunlink(struct ucred *cred, struct ksem *ks,
1491 struct label *kslabel)
1493 struct mac_mls *subj, *obj;
1498 subj = SLOT(cred->cr_label);
1499 obj = SLOT(kslabel);
1501 if (!mls_dominate_effective(obj, subj))
1508 mls_posixsem_check_rdonly(struct ucred *active_cred, struct ucred *file_cred,
1509 struct ksem *ks, struct label *kslabel)
1511 struct mac_mls *subj, *obj;
1516 subj = SLOT(active_cred->cr_label);
1517 obj = SLOT(kslabel);
1519 if (!mls_dominate_effective(subj, obj))
1526 mls_posixsem_check_setmode(struct ucred *cred, struct ksem *ks,
1527 struct label *shmlabel, mode_t mode)
1529 struct mac_mls *subj, *obj;
1534 subj = SLOT(cred->cr_label);
1535 obj = SLOT(shmlabel);
1537 if (!mls_dominate_effective(obj, subj))
1544 mls_posixsem_check_setowner(struct ucred *cred, struct ksem *ks,
1545 struct label *shmlabel, uid_t uid, gid_t gid)
1547 struct mac_mls *subj, *obj;
1552 subj = SLOT(cred->cr_label);
1553 obj = SLOT(shmlabel);
1555 if (!mls_dominate_effective(obj, subj))
1562 mls_posixsem_check_write(struct ucred *active_cred, struct ucred *file_cred,
1563 struct ksem *ks, struct label *kslabel)
1565 struct mac_mls *subj, *obj;
1570 subj = SLOT(active_cred->cr_label);
1571 obj = SLOT(kslabel);
1573 if (!mls_dominate_effective(obj, subj))
1580 mls_posixsem_create(struct ucred *cred, struct ksem *ks,
1581 struct label *kslabel)
1583 struct mac_mls *source, *dest;
1585 source = SLOT(cred->cr_label);
1586 dest = SLOT(kslabel);
1588 mls_copy_effective(source, dest);
1592 mls_posixshm_check_mmap(struct ucred *cred, struct shmfd *shmfd,
1593 struct label *shmlabel, int prot, int flags)
1595 struct mac_mls *subj, *obj;
1600 subj = SLOT(cred->cr_label);
1601 obj = SLOT(shmlabel);
1603 if (prot & (VM_PROT_READ | VM_PROT_EXECUTE)) {
1604 if (!mls_dominate_effective(subj, obj))
1607 if (((prot & VM_PROT_WRITE) != 0) && ((flags & MAP_SHARED) != 0)) {
1608 if (!mls_dominate_effective(obj, subj))
1616 mls_posixshm_check_open(struct ucred *cred, struct shmfd *shmfd,
1617 struct label *shmlabel, accmode_t accmode)
1619 struct mac_mls *subj, *obj;
1624 subj = SLOT(cred->cr_label);
1625 obj = SLOT(shmlabel);
1627 if (accmode & (VREAD | VEXEC | VSTAT_PERMS)) {
1628 if (!mls_dominate_effective(subj, obj))
1631 if (accmode & VMODIFY_PERMS) {
1632 if (!mls_dominate_effective(obj, subj))
1640 mls_posixshm_check_read(struct ucred *active_cred, struct ucred *file_cred,
1641 struct shmfd *shm, struct label *shmlabel)
1643 struct mac_mls *subj, *obj;
1645 if (!mls_enabled || !revocation_enabled)
1648 subj = SLOT(active_cred->cr_label);
1649 obj = SLOT(shmlabel);
1651 if (!mls_dominate_effective(subj, obj))
1658 mls_posixshm_check_setmode(struct ucred *cred, struct shmfd *shmfd,
1659 struct label *shmlabel, mode_t mode)
1661 struct mac_mls *subj, *obj;
1666 subj = SLOT(cred->cr_label);
1667 obj = SLOT(shmlabel);
1669 if (!mls_dominate_effective(obj, subj))
1676 mls_posixshm_check_setowner(struct ucred *cred, struct shmfd *shmfd,
1677 struct label *shmlabel, uid_t uid, gid_t gid)
1679 struct mac_mls *subj, *obj;
1684 subj = SLOT(cred->cr_label);
1685 obj = SLOT(shmlabel);
1687 if (!mls_dominate_effective(obj, subj))
1694 mls_posixshm_check_stat(struct ucred *active_cred, struct ucred *file_cred,
1695 struct shmfd *shmfd, struct label *shmlabel)
1697 struct mac_mls *subj, *obj;
1702 subj = SLOT(active_cred->cr_label);
1703 obj = SLOT(shmlabel);
1705 if (!mls_dominate_effective(subj, obj))
1712 mls_posixshm_check_truncate(struct ucred *active_cred,
1713 struct ucred *file_cred, struct shmfd *shmfd, struct label *shmlabel)
1715 struct mac_mls *subj, *obj;
1720 subj = SLOT(active_cred->cr_label);
1721 obj = SLOT(shmlabel);
1723 if (!mls_dominate_effective(obj, subj))
1730 mls_posixshm_check_unlink(struct ucred *cred, struct shmfd *shmfd,
1731 struct label *shmlabel)
1733 struct mac_mls *subj, *obj;
1738 subj = SLOT(cred->cr_label);
1739 obj = SLOT(shmlabel);
1741 if (!mls_dominate_effective(obj, subj))
1748 mls_posixshm_check_write(struct ucred *active_cred, struct ucred *file_cred,
1749 struct shmfd *shm, struct label *shmlabel)
1751 struct mac_mls *subj, *obj;
1753 if (!mls_enabled || !revocation_enabled)
1756 subj = SLOT(active_cred->cr_label);
1757 obj = SLOT(shmlabel);
1759 if (!mls_dominate_effective(subj, obj))
1766 mls_posixshm_create(struct ucred *cred, struct shmfd *shmfd,
1767 struct label *shmlabel)
1769 struct mac_mls *source, *dest;
1771 source = SLOT(cred->cr_label);
1772 dest = SLOT(shmlabel);
1774 mls_copy_effective(source, dest);
1778 mls_proc_check_debug(struct ucred *cred, struct proc *p)
1780 struct mac_mls *subj, *obj;
1785 subj = SLOT(cred->cr_label);
1786 obj = SLOT(p->p_ucred->cr_label);
1788 /* XXX: range checks */
1789 if (!mls_dominate_effective(subj, obj))
1791 if (!mls_dominate_effective(obj, subj))
1798 mls_proc_check_sched(struct ucred *cred, struct proc *p)
1800 struct mac_mls *subj, *obj;
1805 subj = SLOT(cred->cr_label);
1806 obj = SLOT(p->p_ucred->cr_label);
1808 /* XXX: range checks */
1809 if (!mls_dominate_effective(subj, obj))
1811 if (!mls_dominate_effective(obj, subj))
1818 mls_proc_check_signal(struct ucred *cred, struct proc *p, int signum)
1820 struct mac_mls *subj, *obj;
1825 subj = SLOT(cred->cr_label);
1826 obj = SLOT(p->p_ucred->cr_label);
1828 /* XXX: range checks */
1829 if (!mls_dominate_effective(subj, obj))
1831 if (!mls_dominate_effective(obj, subj))
1838 mls_socket_check_deliver(struct socket *so, struct label *solabel,
1839 struct mbuf *m, struct label *mlabel)
1841 struct mac_mls *p, *s;
1851 error = mls_equal_effective(p, s) ? 0 : EACCES;
1858 mls_socket_check_relabel(struct ucred *cred, struct socket *so,
1859 struct label *solabel, struct label *newlabel)
1861 struct mac_mls *subj, *obj, *new;
1864 SOCK_LOCK_ASSERT(so);
1866 new = SLOT(newlabel);
1867 subj = SLOT(cred->cr_label);
1868 obj = SLOT(solabel);
1871 * If there is an MLS label update for the socket, it may be an
1872 * update of effective.
1874 error = mls_atmostflags(new, MAC_MLS_FLAG_EFFECTIVE);
1879 * To relabel a socket, the old socket effective must be in the
1882 if (!mls_effective_in_range(obj, subj))
1886 * If the MLS label is to be changed, authorize as appropriate.
1888 if (new->mm_flags & MAC_MLS_FLAG_EFFECTIVE) {
1890 * To relabel a socket, the new socket effective must be in
1891 * the subject range.
1893 if (!mls_effective_in_range(new, subj))
1897 * To change the MLS label on the socket to contain EQUAL,
1898 * the subject must have appropriate privilege.
1900 if (mls_contains_equal(new)) {
1901 error = mls_subject_privileged(subj);
1911 mls_socket_check_visible(struct ucred *cred, struct socket *so,
1912 struct label *solabel)
1914 struct mac_mls *subj, *obj;
1919 subj = SLOT(cred->cr_label);
1920 obj = SLOT(solabel);
1923 if (!mls_dominate_effective(subj, obj)) {
1933 mls_socket_create(struct ucred *cred, struct socket *so,
1934 struct label *solabel)
1936 struct mac_mls *source, *dest;
1938 source = SLOT(cred->cr_label);
1939 dest = SLOT(solabel);
1941 mls_copy_effective(source, dest);
1945 mls_socket_create_mbuf(struct socket *so, struct label *solabel,
1946 struct mbuf *m, struct label *mlabel)
1948 struct mac_mls *source, *dest;
1950 source = SLOT(solabel);
1951 dest = SLOT(mlabel);
1954 mls_copy_effective(source, dest);
1959 mls_socket_newconn(struct socket *oldso, struct label *oldsolabel,
1960 struct socket *newso, struct label *newsolabel)
1962 struct mac_mls source, *dest;
1965 source = *SLOT(oldsolabel);
1968 dest = SLOT(newsolabel);
1971 mls_copy_effective(&source, dest);
1976 mls_socket_relabel(struct ucred *cred, struct socket *so,
1977 struct label *solabel, struct label *newlabel)
1979 struct mac_mls *source, *dest;
1981 SOCK_LOCK_ASSERT(so);
1983 source = SLOT(newlabel);
1984 dest = SLOT(solabel);
1986 mls_copy(source, dest);
1990 mls_socketpeer_set_from_mbuf(struct mbuf *m, struct label *mlabel,
1991 struct socket *so, struct label *sopeerlabel)
1993 struct mac_mls *source, *dest;
1995 source = SLOT(mlabel);
1996 dest = SLOT(sopeerlabel);
1999 mls_copy_effective(source, dest);
2004 mls_socketpeer_set_from_socket(struct socket *oldso,
2005 struct label *oldsolabel, struct socket *newso,
2006 struct label *newsopeerlabel)
2008 struct mac_mls source, *dest;
2011 source = *SLOT(oldsolabel);
2014 dest = SLOT(newsopeerlabel);
2017 mls_copy_effective(&source, dest);
2022 mls_syncache_create(struct label *label, struct inpcb *inp)
2024 struct mac_mls *source, *dest;
2026 source = SLOT(inp->inp_label);
2029 mls_copy_effective(source, dest);
2033 mls_syncache_create_mbuf(struct label *sc_label, struct mbuf *m,
2034 struct label *mlabel)
2036 struct mac_mls *source, *dest;
2038 source = SLOT(sc_label);
2039 dest = SLOT(mlabel);
2041 mls_copy_effective(source, dest);
2045 mls_system_check_acct(struct ucred *cred, struct vnode *vp,
2046 struct label *vplabel)
2048 struct mac_mls *subj, *obj;
2053 if (vplabel == NULL)
2056 subj = SLOT(cred->cr_label);
2057 obj = SLOT(vplabel);
2059 if (!mls_dominate_effective(obj, subj) ||
2060 !mls_dominate_effective(subj, obj))
2067 mls_system_check_auditctl(struct ucred *cred, struct vnode *vp,
2068 struct label *vplabel)
2070 struct mac_mls *subj, *obj;
2075 subj = SLOT(cred->cr_label);
2076 obj = SLOT(vplabel);
2078 if (!mls_dominate_effective(obj, subj) ||
2079 !mls_dominate_effective(subj, obj))
2086 mls_system_check_swapon(struct ucred *cred, struct vnode *vp,
2087 struct label *vplabel)
2089 struct mac_mls *subj, *obj;
2094 subj = SLOT(cred->cr_label);
2095 obj = SLOT(vplabel);
2097 if (!mls_dominate_effective(obj, subj) ||
2098 !mls_dominate_effective(subj, obj))
2105 mls_sysvmsg_cleanup(struct label *msglabel)
2108 bzero(SLOT(msglabel), sizeof(struct mac_mls));
2112 mls_sysvmsg_create(struct ucred *cred, struct msqid_kernel *msqkptr,
2113 struct label *msqlabel, struct msg *msgptr, struct label *msglabel)
2115 struct mac_mls *source, *dest;
2117 /* Ignore the msgq label. */
2118 source = SLOT(cred->cr_label);
2119 dest = SLOT(msglabel);
2121 mls_copy_effective(source, dest);
2125 mls_sysvmsq_check_msgrcv(struct ucred *cred, struct msg *msgptr,
2126 struct label *msglabel)
2128 struct mac_mls *subj, *obj;
2133 subj = SLOT(cred->cr_label);
2134 obj = SLOT(msglabel);
2136 if (!mls_dominate_effective(subj, obj))
2143 mls_sysvmsq_check_msgrmid(struct ucred *cred, struct msg *msgptr,
2144 struct label *msglabel)
2146 struct mac_mls *subj, *obj;
2151 subj = SLOT(cred->cr_label);
2152 obj = SLOT(msglabel);
2154 if (!mls_dominate_effective(obj, subj))
2161 mls_sysvmsq_check_msqget(struct ucred *cred, struct msqid_kernel *msqkptr,
2162 struct label *msqklabel)
2164 struct mac_mls *subj, *obj;
2169 subj = SLOT(cred->cr_label);
2170 obj = SLOT(msqklabel);
2172 if (!mls_dominate_effective(subj, obj))
2179 mls_sysvmsq_check_msqsnd(struct ucred *cred, struct msqid_kernel *msqkptr,
2180 struct label *msqklabel)
2182 struct mac_mls *subj, *obj;
2187 subj = SLOT(cred->cr_label);
2188 obj = SLOT(msqklabel);
2190 if (!mls_dominate_effective(obj, subj))
2197 mls_sysvmsq_check_msqrcv(struct ucred *cred, struct msqid_kernel *msqkptr,
2198 struct label *msqklabel)
2200 struct mac_mls *subj, *obj;
2205 subj = SLOT(cred->cr_label);
2206 obj = SLOT(msqklabel);
2208 if (!mls_dominate_effective(subj, obj))
2215 mls_sysvmsq_check_msqctl(struct ucred *cred, struct msqid_kernel *msqkptr,
2216 struct label *msqklabel, int cmd)
2218 struct mac_mls *subj, *obj;
2223 subj = SLOT(cred->cr_label);
2224 obj = SLOT(msqklabel);
2229 if (!mls_dominate_effective(obj, subj))
2234 if (!mls_dominate_effective(subj, obj))
2246 mls_sysvmsq_cleanup(struct label *msqlabel)
2249 bzero(SLOT(msqlabel), sizeof(struct mac_mls));
2253 mls_sysvmsq_create(struct ucred *cred, struct msqid_kernel *msqkptr,
2254 struct label *msqlabel)
2256 struct mac_mls *source, *dest;
2258 source = SLOT(cred->cr_label);
2259 dest = SLOT(msqlabel);
2261 mls_copy_effective(source, dest);
2265 mls_sysvsem_check_semctl(struct ucred *cred, struct semid_kernel *semakptr,
2266 struct label *semaklabel, int cmd)
2268 struct mac_mls *subj, *obj;
2273 subj = SLOT(cred->cr_label);
2274 obj = SLOT(semaklabel);
2281 if (!mls_dominate_effective(obj, subj))
2291 if (!mls_dominate_effective(subj, obj))
2303 mls_sysvsem_check_semget(struct ucred *cred, struct semid_kernel *semakptr,
2304 struct label *semaklabel)
2306 struct mac_mls *subj, *obj;
2311 subj = SLOT(cred->cr_label);
2312 obj = SLOT(semaklabel);
2314 if (!mls_dominate_effective(subj, obj))
2321 mls_sysvsem_check_semop(struct ucred *cred, struct semid_kernel *semakptr,
2322 struct label *semaklabel, size_t accesstype)
2324 struct mac_mls *subj, *obj;
2329 subj = SLOT(cred->cr_label);
2330 obj = SLOT(semaklabel);
2332 if( accesstype & SEM_R )
2333 if (!mls_dominate_effective(subj, obj))
2336 if( accesstype & SEM_A )
2337 if (!mls_dominate_effective(obj, subj))
2344 mls_sysvsem_cleanup(struct label *semalabel)
2347 bzero(SLOT(semalabel), sizeof(struct mac_mls));
2351 mls_sysvsem_create(struct ucred *cred, struct semid_kernel *semakptr,
2352 struct label *semalabel)
2354 struct mac_mls *source, *dest;
2356 source = SLOT(cred->cr_label);
2357 dest = SLOT(semalabel);
2359 mls_copy_effective(source, dest);
2363 mls_sysvshm_check_shmat(struct ucred *cred, struct shmid_kernel *shmsegptr,
2364 struct label *shmseglabel, int shmflg)
2366 struct mac_mls *subj, *obj;
2371 subj = SLOT(cred->cr_label);
2372 obj = SLOT(shmseglabel);
2374 if (!mls_dominate_effective(subj, obj))
2376 if ((shmflg & SHM_RDONLY) == 0) {
2377 if (!mls_dominate_effective(obj, subj))
2385 mls_sysvshm_check_shmctl(struct ucred *cred, struct shmid_kernel *shmsegptr,
2386 struct label *shmseglabel, int cmd)
2388 struct mac_mls *subj, *obj;
2393 subj = SLOT(cred->cr_label);
2394 obj = SLOT(shmseglabel);
2399 if (!mls_dominate_effective(obj, subj))
2405 if (!mls_dominate_effective(subj, obj))
2417 mls_sysvshm_check_shmget(struct ucred *cred, struct shmid_kernel *shmsegptr,
2418 struct label *shmseglabel, int shmflg)
2420 struct mac_mls *subj, *obj;
2425 subj = SLOT(cred->cr_label);
2426 obj = SLOT(shmseglabel);
2428 if (!mls_dominate_effective(obj, subj))
2435 mls_sysvshm_cleanup(struct label *shmlabel)
2438 bzero(SLOT(shmlabel), sizeof(struct mac_mls));
2442 mls_sysvshm_create(struct ucred *cred, struct shmid_kernel *shmsegptr,
2443 struct label *shmlabel)
2445 struct mac_mls *source, *dest;
2447 source = SLOT(cred->cr_label);
2448 dest = SLOT(shmlabel);
2450 mls_copy_effective(source, dest);
2454 mls_vnode_associate_extattr(struct mount *mp, struct label *mplabel,
2455 struct vnode *vp, struct label *vplabel)
2457 struct mac_mls mm_temp, *source, *dest;
2460 source = SLOT(mplabel);
2461 dest = SLOT(vplabel);
2463 buflen = sizeof(mm_temp);
2464 bzero(&mm_temp, buflen);
2466 error = vn_extattr_get(vp, IO_NODELOCKED, MAC_MLS_EXTATTR_NAMESPACE,
2467 MAC_MLS_EXTATTR_NAME, &buflen, (char *) &mm_temp, curthread);
2468 if (error == ENOATTR || error == EOPNOTSUPP) {
2469 /* Fall back to the mntlabel. */
2470 mls_copy_effective(source, dest);
2475 if (buflen != sizeof(mm_temp)) {
2476 printf("mls_vnode_associate_extattr: bad size %d\n", buflen);
2479 if (mls_valid(&mm_temp) != 0) {
2480 printf("mls_vnode_associate_extattr: invalid\n");
2483 if ((mm_temp.mm_flags & MAC_MLS_FLAGS_BOTH) !=
2484 MAC_MLS_FLAG_EFFECTIVE) {
2485 printf("mls_associated_vnode_extattr: not effective\n");
2489 mls_copy_effective(&mm_temp, dest);
2494 mls_vnode_associate_singlelabel(struct mount *mp, struct label *mplabel,
2495 struct vnode *vp, struct label *vplabel)
2497 struct mac_mls *source, *dest;
2499 source = SLOT(mplabel);
2500 dest = SLOT(vplabel);
2502 mls_copy_effective(source, dest);
2506 mls_vnode_check_chdir(struct ucred *cred, struct vnode *dvp,
2507 struct label *dvplabel)
2509 struct mac_mls *subj, *obj;
2514 subj = SLOT(cred->cr_label);
2515 obj = SLOT(dvplabel);
2517 if (!mls_dominate_effective(subj, obj))
2524 mls_vnode_check_chroot(struct ucred *cred, struct vnode *dvp,
2525 struct label *dvplabel)
2527 struct mac_mls *subj, *obj;
2532 subj = SLOT(cred->cr_label);
2533 obj = SLOT(dvplabel);
2535 if (!mls_dominate_effective(subj, obj))
2542 mls_vnode_check_create(struct ucred *cred, struct vnode *dvp,
2543 struct label *dvplabel, struct componentname *cnp, struct vattr *vap)
2545 struct mac_mls *subj, *obj;
2550 subj = SLOT(cred->cr_label);
2551 obj = SLOT(dvplabel);
2553 if (!mls_dominate_effective(obj, subj))
2560 mls_vnode_check_deleteacl(struct ucred *cred, struct vnode *vp,
2561 struct label *vplabel, acl_type_t type)
2563 struct mac_mls *subj, *obj;
2568 subj = SLOT(cred->cr_label);
2569 obj = SLOT(vplabel);
2571 if (!mls_dominate_effective(obj, subj))
2578 mls_vnode_check_deleteextattr(struct ucred *cred, struct vnode *vp,
2579 struct label *vplabel, int attrnamespace, const char *name)
2581 struct mac_mls *subj, *obj;
2586 subj = SLOT(cred->cr_label);
2587 obj = SLOT(vplabel);
2589 if (!mls_dominate_effective(obj, subj))
2596 mls_vnode_check_exec(struct ucred *cred, struct vnode *vp,
2597 struct label *vplabel, struct image_params *imgp,
2598 struct label *execlabel)
2600 struct mac_mls *subj, *obj, *exec;
2603 if (execlabel != NULL) {
2605 * We currently don't permit labels to be changed at
2606 * exec-time as part of MLS, so disallow non-NULL MLS label
2607 * elements in the execlabel.
2609 exec = SLOT(execlabel);
2610 error = mls_atmostflags(exec, 0);
2618 subj = SLOT(cred->cr_label);
2619 obj = SLOT(vplabel);
2621 if (!mls_dominate_effective(subj, obj))
2628 mls_vnode_check_getacl(struct ucred *cred, struct vnode *vp,
2629 struct label *vplabel, acl_type_t type)
2631 struct mac_mls *subj, *obj;
2636 subj = SLOT(cred->cr_label);
2637 obj = SLOT(vplabel);
2639 if (!mls_dominate_effective(subj, obj))
2646 mls_vnode_check_getextattr(struct ucred *cred, struct vnode *vp,
2647 struct label *vplabel, int attrnamespace, const char *name)
2649 struct mac_mls *subj, *obj;
2654 subj = SLOT(cred->cr_label);
2655 obj = SLOT(vplabel);
2657 if (!mls_dominate_effective(subj, obj))
2664 mls_vnode_check_link(struct ucred *cred, struct vnode *dvp,
2665 struct label *dvplabel, struct vnode *vp, struct label *vplabel,
2666 struct componentname *cnp)
2668 struct mac_mls *subj, *obj;
2673 subj = SLOT(cred->cr_label);
2674 obj = SLOT(dvplabel);
2676 if (!mls_dominate_effective(obj, subj))
2679 obj = SLOT(vplabel);
2680 if (!mls_dominate_effective(obj, subj))
2687 mls_vnode_check_listextattr(struct ucred *cred, struct vnode *vp,
2688 struct label *vplabel, int attrnamespace)
2691 struct mac_mls *subj, *obj;
2696 subj = SLOT(cred->cr_label);
2697 obj = SLOT(vplabel);
2699 if (!mls_dominate_effective(subj, obj))
2706 mls_vnode_check_lookup(struct ucred *cred, struct vnode *dvp,
2707 struct label *dvplabel, struct componentname *cnp)
2709 struct mac_mls *subj, *obj;
2714 subj = SLOT(cred->cr_label);
2715 obj = SLOT(dvplabel);
2717 if (!mls_dominate_effective(subj, obj))
2724 mls_vnode_check_mmap(struct ucred *cred, struct vnode *vp,
2725 struct label *vplabel, int prot, int flags)
2727 struct mac_mls *subj, *obj;
2730 * Rely on the use of open()-time protections to handle
2731 * non-revocation cases.
2733 if (!mls_enabled || !revocation_enabled)
2736 subj = SLOT(cred->cr_label);
2737 obj = SLOT(vplabel);
2739 if (prot & (VM_PROT_READ | VM_PROT_EXECUTE)) {
2740 if (!mls_dominate_effective(subj, obj))
2743 if (((prot & VM_PROT_WRITE) != 0) && ((flags & MAP_SHARED) != 0)) {
2744 if (!mls_dominate_effective(obj, subj))
2752 mls_vnode_check_open(struct ucred *cred, struct vnode *vp,
2753 struct label *vplabel, accmode_t accmode)
2755 struct mac_mls *subj, *obj;
2760 subj = SLOT(cred->cr_label);
2761 obj = SLOT(vplabel);
2763 /* XXX privilege override for admin? */
2764 if (accmode & (VREAD | VEXEC | VSTAT_PERMS)) {
2765 if (!mls_dominate_effective(subj, obj))
2768 if (accmode & VMODIFY_PERMS) {
2769 if (!mls_dominate_effective(obj, subj))
2777 mls_vnode_check_poll(struct ucred *active_cred, struct ucred *file_cred,
2778 struct vnode *vp, struct label *vplabel)
2780 struct mac_mls *subj, *obj;
2782 if (!mls_enabled || !revocation_enabled)
2785 subj = SLOT(active_cred->cr_label);
2786 obj = SLOT(vplabel);
2788 if (!mls_dominate_effective(subj, obj))
2795 mls_vnode_check_read(struct ucred *active_cred, struct ucred *file_cred,
2796 struct vnode *vp, struct label *vplabel)
2798 struct mac_mls *subj, *obj;
2800 if (!mls_enabled || !revocation_enabled)
2803 subj = SLOT(active_cred->cr_label);
2804 obj = SLOT(vplabel);
2806 if (!mls_dominate_effective(subj, obj))
2813 mls_vnode_check_readdir(struct ucred *cred, struct vnode *dvp,
2814 struct label *dvplabel)
2816 struct mac_mls *subj, *obj;
2821 subj = SLOT(cred->cr_label);
2822 obj = SLOT(dvplabel);
2824 if (!mls_dominate_effective(subj, obj))
2831 mls_vnode_check_readlink(struct ucred *cred, struct vnode *vp,
2832 struct label *vplabel)
2834 struct mac_mls *subj, *obj;
2839 subj = SLOT(cred->cr_label);
2840 obj = SLOT(vplabel);
2842 if (!mls_dominate_effective(subj, obj))
2849 mls_vnode_check_relabel(struct ucred *cred, struct vnode *vp,
2850 struct label *vplabel, struct label *newlabel)
2852 struct mac_mls *old, *new, *subj;
2855 old = SLOT(vplabel);
2856 new = SLOT(newlabel);
2857 subj = SLOT(cred->cr_label);
2860 * If there is an MLS label update for the vnode, it must be a
2863 error = mls_atmostflags(new, MAC_MLS_FLAG_EFFECTIVE);
2868 * To perform a relabel of the vnode (MLS label or not), MLS must
2869 * authorize the relabel.
2871 if (!mls_effective_in_range(old, subj))
2875 * If the MLS label is to be changed, authorize as appropriate.
2877 if (new->mm_flags & MAC_MLS_FLAG_EFFECTIVE) {
2879 * To change the MLS label on a vnode, the new vnode label
2880 * must be in the subject range.
2882 if (!mls_effective_in_range(new, subj))
2886 * To change the MLS label on the vnode to be EQUAL, the
2887 * subject must have appropriate privilege.
2889 if (mls_contains_equal(new)) {
2890 error = mls_subject_privileged(subj);
2900 mls_vnode_check_rename_from(struct ucred *cred, struct vnode *dvp,
2901 struct label *dvplabel, struct vnode *vp, struct label *vplabel,
2902 struct componentname *cnp)
2904 struct mac_mls *subj, *obj;
2909 subj = SLOT(cred->cr_label);
2910 obj = SLOT(dvplabel);
2912 if (!mls_dominate_effective(obj, subj))
2915 obj = SLOT(vplabel);
2917 if (!mls_dominate_effective(obj, subj))
2924 mls_vnode_check_rename_to(struct ucred *cred, struct vnode *dvp,
2925 struct label *dvplabel, struct vnode *vp, struct label *vplabel,
2926 int samedir, struct componentname *cnp)
2928 struct mac_mls *subj, *obj;
2933 subj = SLOT(cred->cr_label);
2934 obj = SLOT(dvplabel);
2936 if (!mls_dominate_effective(obj, subj))
2940 obj = SLOT(vplabel);
2942 if (!mls_dominate_effective(obj, subj))
2950 mls_vnode_check_revoke(struct ucred *cred, struct vnode *vp,
2951 struct label *vplabel)
2953 struct mac_mls *subj, *obj;
2958 subj = SLOT(cred->cr_label);
2959 obj = SLOT(vplabel);
2961 if (!mls_dominate_effective(obj, subj))
2968 mls_vnode_check_setacl(struct ucred *cred, struct vnode *vp,
2969 struct label *vplabel, acl_type_t type, struct acl *acl)
2971 struct mac_mls *subj, *obj;
2976 subj = SLOT(cred->cr_label);
2977 obj = SLOT(vplabel);
2979 if (!mls_dominate_effective(obj, subj))
2986 mls_vnode_check_setextattr(struct ucred *cred, struct vnode *vp,
2987 struct label *vplabel, int attrnamespace, const char *name)
2989 struct mac_mls *subj, *obj;
2994 subj = SLOT(cred->cr_label);
2995 obj = SLOT(vplabel);
2997 if (!mls_dominate_effective(obj, subj))
3000 /* XXX: protect the MAC EA in a special way? */
3006 mls_vnode_check_setflags(struct ucred *cred, struct vnode *vp,
3007 struct label *vplabel, u_long flags)
3009 struct mac_mls *subj, *obj;
3014 subj = SLOT(cred->cr_label);
3015 obj = SLOT(vplabel);
3017 if (!mls_dominate_effective(obj, subj))
3024 mls_vnode_check_setmode(struct ucred *cred, struct vnode *vp,
3025 struct label *vplabel, mode_t mode)
3027 struct mac_mls *subj, *obj;
3032 subj = SLOT(cred->cr_label);
3033 obj = SLOT(vplabel);
3035 if (!mls_dominate_effective(obj, subj))
3042 mls_vnode_check_setowner(struct ucred *cred, struct vnode *vp,
3043 struct label *vplabel, uid_t uid, gid_t gid)
3045 struct mac_mls *subj, *obj;
3050 subj = SLOT(cred->cr_label);
3051 obj = SLOT(vplabel);
3053 if (!mls_dominate_effective(obj, subj))
3060 mls_vnode_check_setutimes(struct ucred *cred, struct vnode *vp,
3061 struct label *vplabel, struct timespec atime, struct timespec mtime)
3063 struct mac_mls *subj, *obj;
3068 subj = SLOT(cred->cr_label);
3069 obj = SLOT(vplabel);
3071 if (!mls_dominate_effective(obj, subj))
3078 mls_vnode_check_stat(struct ucred *active_cred, struct ucred *file_cred,
3079 struct vnode *vp, struct label *vplabel)
3081 struct mac_mls *subj, *obj;
3086 subj = SLOT(active_cred->cr_label);
3087 obj = SLOT(vplabel);
3089 if (!mls_dominate_effective(subj, obj))
3096 mls_vnode_check_unlink(struct ucred *cred, struct vnode *dvp,
3097 struct label *dvplabel, struct vnode *vp, struct label *vplabel,
3098 struct componentname *cnp)
3100 struct mac_mls *subj, *obj;
3105 subj = SLOT(cred->cr_label);
3106 obj = SLOT(dvplabel);
3108 if (!mls_dominate_effective(obj, subj))
3111 obj = SLOT(vplabel);
3113 if (!mls_dominate_effective(obj, subj))
3120 mls_vnode_check_write(struct ucred *active_cred, struct ucred *file_cred,
3121 struct vnode *vp, struct label *vplabel)
3123 struct mac_mls *subj, *obj;
3125 if (!mls_enabled || !revocation_enabled)
3128 subj = SLOT(active_cred->cr_label);
3129 obj = SLOT(vplabel);
3131 if (!mls_dominate_effective(obj, subj))
3138 mls_vnode_create_extattr(struct ucred *cred, struct mount *mp,
3139 struct label *mplabel, struct vnode *dvp, struct label *dvplabel,
3140 struct vnode *vp, struct label *vplabel, struct componentname *cnp)
3142 struct mac_mls *source, *dest, mm_temp;
3146 buflen = sizeof(mm_temp);
3147 bzero(&mm_temp, buflen);
3149 source = SLOT(cred->cr_label);
3150 dest = SLOT(vplabel);
3151 mls_copy_effective(source, &mm_temp);
3153 error = vn_extattr_set(vp, IO_NODELOCKED, MAC_MLS_EXTATTR_NAMESPACE,
3154 MAC_MLS_EXTATTR_NAME, buflen, (char *) &mm_temp, curthread);
3156 mls_copy_effective(source, dest);
3161 mls_vnode_relabel(struct ucred *cred, struct vnode *vp,
3162 struct label *vplabel, struct label *label)
3164 struct mac_mls *source, *dest;
3166 source = SLOT(label);
3167 dest = SLOT(vplabel);
3169 mls_copy(source, dest);
3173 mls_vnode_setlabel_extattr(struct ucred *cred, struct vnode *vp,
3174 struct label *vplabel, struct label *intlabel)
3176 struct mac_mls *source, mm_temp;
3180 buflen = sizeof(mm_temp);
3181 bzero(&mm_temp, buflen);
3183 source = SLOT(intlabel);
3184 if ((source->mm_flags & MAC_MLS_FLAG_EFFECTIVE) == 0)
3187 mls_copy_effective(source, &mm_temp);
3189 error = vn_extattr_set(vp, IO_NODELOCKED, MAC_MLS_EXTATTR_NAMESPACE,
3190 MAC_MLS_EXTATTR_NAME, buflen, (char *) &mm_temp, curthread);
3194 static struct mac_policy_ops mls_ops =
3196 .mpo_init = mls_init,
3198 .mpo_bpfdesc_check_receive = mls_bpfdesc_check_receive,
3199 .mpo_bpfdesc_create = mls_bpfdesc_create,
3200 .mpo_bpfdesc_create_mbuf = mls_bpfdesc_create_mbuf,
3201 .mpo_bpfdesc_destroy_label = mls_destroy_label,
3202 .mpo_bpfdesc_init_label = mls_init_label,
3204 .mpo_cred_associate_nfsd = mls_cred_associate_nfsd,
3205 .mpo_cred_check_relabel = mls_cred_check_relabel,
3206 .mpo_cred_check_visible = mls_cred_check_visible,
3207 .mpo_cred_copy_label = mls_copy_label,
3208 .mpo_cred_create_init = mls_cred_create_init,
3209 .mpo_cred_create_swapper = mls_cred_create_swapper,
3210 .mpo_cred_destroy_label = mls_destroy_label,
3211 .mpo_cred_externalize_label = mls_externalize_label,
3212 .mpo_cred_init_label = mls_init_label,
3213 .mpo_cred_internalize_label = mls_internalize_label,
3214 .mpo_cred_relabel = mls_cred_relabel,
3216 .mpo_devfs_create_device = mls_devfs_create_device,
3217 .mpo_devfs_create_directory = mls_devfs_create_directory,
3218 .mpo_devfs_create_symlink = mls_devfs_create_symlink,
3219 .mpo_devfs_destroy_label = mls_destroy_label,
3220 .mpo_devfs_init_label = mls_init_label,
3221 .mpo_devfs_update = mls_devfs_update,
3222 .mpo_devfs_vnode_associate = mls_devfs_vnode_associate,
3224 .mpo_ifnet_check_relabel = mls_ifnet_check_relabel,
3225 .mpo_ifnet_check_transmit = mls_ifnet_check_transmit,
3226 .mpo_ifnet_copy_label = mls_copy_label,
3227 .mpo_ifnet_create = mls_ifnet_create,
3228 .mpo_ifnet_create_mbuf = mls_ifnet_create_mbuf,
3229 .mpo_ifnet_destroy_label = mls_destroy_label,
3230 .mpo_ifnet_externalize_label = mls_externalize_label,
3231 .mpo_ifnet_init_label = mls_init_label,
3232 .mpo_ifnet_internalize_label = mls_internalize_label,
3233 .mpo_ifnet_relabel = mls_ifnet_relabel,
3235 .mpo_inpcb_check_deliver = mls_inpcb_check_deliver,
3236 .mpo_inpcb_check_visible = mls_inpcb_check_visible,
3237 .mpo_inpcb_create = mls_inpcb_create,
3238 .mpo_inpcb_create_mbuf = mls_inpcb_create_mbuf,
3239 .mpo_inpcb_destroy_label = mls_destroy_label,
3240 .mpo_inpcb_init_label = mls_init_label_waitcheck,
3241 .mpo_inpcb_sosetlabel = mls_inpcb_sosetlabel,
3243 .mpo_ip6q_create = mls_ip6q_create,
3244 .mpo_ip6q_destroy_label = mls_destroy_label,
3245 .mpo_ip6q_init_label = mls_init_label_waitcheck,
3246 .mpo_ip6q_match = mls_ip6q_match,
3247 .mpo_ip6q_reassemble = mls_ip6q_reassemble,
3248 .mpo_ip6q_update = mls_ip6q_update,
3250 .mpo_ipq_create = mls_ipq_create,
3251 .mpo_ipq_destroy_label = mls_destroy_label,
3252 .mpo_ipq_init_label = mls_init_label_waitcheck,
3253 .mpo_ipq_match = mls_ipq_match,
3254 .mpo_ipq_reassemble = mls_ipq_reassemble,
3255 .mpo_ipq_update = mls_ipq_update,
3257 .mpo_mbuf_copy_label = mls_copy_label,
3258 .mpo_mbuf_destroy_label = mls_destroy_label,
3259 .mpo_mbuf_init_label = mls_init_label_waitcheck,
3261 .mpo_mount_check_stat = mls_mount_check_stat,
3262 .mpo_mount_create = mls_mount_create,
3263 .mpo_mount_destroy_label = mls_destroy_label,
3264 .mpo_mount_init_label = mls_init_label,
3266 .mpo_netinet_arp_send = mls_netinet_arp_send,
3267 .mpo_netinet_firewall_reply = mls_netinet_firewall_reply,
3268 .mpo_netinet_firewall_send = mls_netinet_firewall_send,
3269 .mpo_netinet_fragment = mls_netinet_fragment,
3270 .mpo_netinet_icmp_reply = mls_netinet_icmp_reply,
3271 .mpo_netinet_igmp_send = mls_netinet_igmp_send,
3273 .mpo_netinet6_nd6_send = mls_netinet6_nd6_send,
3275 .mpo_pipe_check_ioctl = mls_pipe_check_ioctl,
3276 .mpo_pipe_check_poll = mls_pipe_check_poll,
3277 .mpo_pipe_check_read = mls_pipe_check_read,
3278 .mpo_pipe_check_relabel = mls_pipe_check_relabel,
3279 .mpo_pipe_check_stat = mls_pipe_check_stat,
3280 .mpo_pipe_check_write = mls_pipe_check_write,
3281 .mpo_pipe_copy_label = mls_copy_label,
3282 .mpo_pipe_create = mls_pipe_create,
3283 .mpo_pipe_destroy_label = mls_destroy_label,
3284 .mpo_pipe_externalize_label = mls_externalize_label,
3285 .mpo_pipe_init_label = mls_init_label,
3286 .mpo_pipe_internalize_label = mls_internalize_label,
3287 .mpo_pipe_relabel = mls_pipe_relabel,
3289 .mpo_posixsem_check_getvalue = mls_posixsem_check_rdonly,
3290 .mpo_posixsem_check_open = mls_posixsem_check_openunlink,
3291 .mpo_posixsem_check_post = mls_posixsem_check_write,
3292 .mpo_posixsem_check_setmode = mls_posixsem_check_setmode,
3293 .mpo_posixsem_check_setowner = mls_posixsem_check_setowner,
3294 .mpo_posixsem_check_stat = mls_posixsem_check_rdonly,
3295 .mpo_posixsem_check_unlink = mls_posixsem_check_openunlink,
3296 .mpo_posixsem_check_wait = mls_posixsem_check_write,
3297 .mpo_posixsem_create = mls_posixsem_create,
3298 .mpo_posixsem_destroy_label = mls_destroy_label,
3299 .mpo_posixsem_init_label = mls_init_label,
3301 .mpo_posixshm_check_mmap = mls_posixshm_check_mmap,
3302 .mpo_posixshm_check_open = mls_posixshm_check_open,
3303 .mpo_posixshm_check_read = mls_posixshm_check_read,
3304 .mpo_posixshm_check_setmode = mls_posixshm_check_setmode,
3305 .mpo_posixshm_check_setowner = mls_posixshm_check_setowner,
3306 .mpo_posixshm_check_stat = mls_posixshm_check_stat,
3307 .mpo_posixshm_check_truncate = mls_posixshm_check_truncate,
3308 .mpo_posixshm_check_unlink = mls_posixshm_check_unlink,
3309 .mpo_posixshm_check_write = mls_posixshm_check_write,
3310 .mpo_posixshm_create = mls_posixshm_create,
3311 .mpo_posixshm_destroy_label = mls_destroy_label,
3312 .mpo_posixshm_init_label = mls_init_label,
3314 .mpo_proc_check_debug = mls_proc_check_debug,
3315 .mpo_proc_check_sched = mls_proc_check_sched,
3316 .mpo_proc_check_signal = mls_proc_check_signal,
3318 .mpo_socket_check_deliver = mls_socket_check_deliver,
3319 .mpo_socket_check_relabel = mls_socket_check_relabel,
3320 .mpo_socket_check_visible = mls_socket_check_visible,
3321 .mpo_socket_copy_label = mls_copy_label,
3322 .mpo_socket_create = mls_socket_create,
3323 .mpo_socket_create_mbuf = mls_socket_create_mbuf,
3324 .mpo_socket_destroy_label = mls_destroy_label,
3325 .mpo_socket_externalize_label = mls_externalize_label,
3326 .mpo_socket_init_label = mls_init_label_waitcheck,
3327 .mpo_socket_internalize_label = mls_internalize_label,
3328 .mpo_socket_newconn = mls_socket_newconn,
3329 .mpo_socket_relabel = mls_socket_relabel,
3331 .mpo_socketpeer_destroy_label = mls_destroy_label,
3332 .mpo_socketpeer_externalize_label = mls_externalize_label,
3333 .mpo_socketpeer_init_label = mls_init_label_waitcheck,
3334 .mpo_socketpeer_set_from_mbuf = mls_socketpeer_set_from_mbuf,
3335 .mpo_socketpeer_set_from_socket = mls_socketpeer_set_from_socket,
3337 .mpo_syncache_create = mls_syncache_create,
3338 .mpo_syncache_create_mbuf = mls_syncache_create_mbuf,
3339 .mpo_syncache_destroy_label = mls_destroy_label,
3340 .mpo_syncache_init_label = mls_init_label_waitcheck,
3342 .mpo_sysvmsg_cleanup = mls_sysvmsg_cleanup,
3343 .mpo_sysvmsg_create = mls_sysvmsg_create,
3344 .mpo_sysvmsg_destroy_label = mls_destroy_label,
3345 .mpo_sysvmsg_init_label = mls_init_label,
3347 .mpo_sysvmsq_check_msgrcv = mls_sysvmsq_check_msgrcv,
3348 .mpo_sysvmsq_check_msgrmid = mls_sysvmsq_check_msgrmid,
3349 .mpo_sysvmsq_check_msqget = mls_sysvmsq_check_msqget,
3350 .mpo_sysvmsq_check_msqsnd = mls_sysvmsq_check_msqsnd,
3351 .mpo_sysvmsq_check_msqrcv = mls_sysvmsq_check_msqrcv,
3352 .mpo_sysvmsq_check_msqctl = mls_sysvmsq_check_msqctl,
3353 .mpo_sysvmsq_cleanup = mls_sysvmsq_cleanup,
3354 .mpo_sysvmsq_destroy_label = mls_destroy_label,
3355 .mpo_sysvmsq_init_label = mls_init_label,
3356 .mpo_sysvmsq_create = mls_sysvmsq_create,
3358 .mpo_sysvsem_check_semctl = mls_sysvsem_check_semctl,
3359 .mpo_sysvsem_check_semget = mls_sysvsem_check_semget,
3360 .mpo_sysvsem_check_semop = mls_sysvsem_check_semop,
3361 .mpo_sysvsem_cleanup = mls_sysvsem_cleanup,
3362 .mpo_sysvsem_create = mls_sysvsem_create,
3363 .mpo_sysvsem_destroy_label = mls_destroy_label,
3364 .mpo_sysvsem_init_label = mls_init_label,
3366 .mpo_sysvshm_check_shmat = mls_sysvshm_check_shmat,
3367 .mpo_sysvshm_check_shmctl = mls_sysvshm_check_shmctl,
3368 .mpo_sysvshm_check_shmget = mls_sysvshm_check_shmget,
3369 .mpo_sysvshm_cleanup = mls_sysvshm_cleanup,
3370 .mpo_sysvshm_create = mls_sysvshm_create,
3371 .mpo_sysvshm_destroy_label = mls_destroy_label,
3372 .mpo_sysvshm_init_label = mls_init_label,
3375 .mpo_system_check_acct = mls_system_check_acct,
3376 .mpo_system_check_auditctl = mls_system_check_auditctl,
3377 .mpo_system_check_swapon = mls_system_check_swapon,
3379 .mpo_vnode_associate_extattr = mls_vnode_associate_extattr,
3380 .mpo_vnode_associate_singlelabel = mls_vnode_associate_singlelabel,
3381 .mpo_vnode_check_access = mls_vnode_check_open,
3382 .mpo_vnode_check_chdir = mls_vnode_check_chdir,
3383 .mpo_vnode_check_chroot = mls_vnode_check_chroot,
3384 .mpo_vnode_check_create = mls_vnode_check_create,
3385 .mpo_vnode_check_deleteacl = mls_vnode_check_deleteacl,
3386 .mpo_vnode_check_deleteextattr = mls_vnode_check_deleteextattr,
3387 .mpo_vnode_check_exec = mls_vnode_check_exec,
3388 .mpo_vnode_check_getacl = mls_vnode_check_getacl,
3389 .mpo_vnode_check_getextattr = mls_vnode_check_getextattr,
3390 .mpo_vnode_check_link = mls_vnode_check_link,
3391 .mpo_vnode_check_listextattr = mls_vnode_check_listextattr,
3392 .mpo_vnode_check_lookup = mls_vnode_check_lookup,
3393 .mpo_vnode_check_mmap = mls_vnode_check_mmap,
3394 .mpo_vnode_check_open = mls_vnode_check_open,
3395 .mpo_vnode_check_poll = mls_vnode_check_poll,
3396 .mpo_vnode_check_read = mls_vnode_check_read,
3397 .mpo_vnode_check_readdir = mls_vnode_check_readdir,
3398 .mpo_vnode_check_readlink = mls_vnode_check_readlink,
3399 .mpo_vnode_check_relabel = mls_vnode_check_relabel,
3400 .mpo_vnode_check_rename_from = mls_vnode_check_rename_from,
3401 .mpo_vnode_check_rename_to = mls_vnode_check_rename_to,
3402 .mpo_vnode_check_revoke = mls_vnode_check_revoke,
3403 .mpo_vnode_check_setacl = mls_vnode_check_setacl,
3404 .mpo_vnode_check_setextattr = mls_vnode_check_setextattr,
3405 .mpo_vnode_check_setflags = mls_vnode_check_setflags,
3406 .mpo_vnode_check_setmode = mls_vnode_check_setmode,
3407 .mpo_vnode_check_setowner = mls_vnode_check_setowner,
3408 .mpo_vnode_check_setutimes = mls_vnode_check_setutimes,
3409 .mpo_vnode_check_stat = mls_vnode_check_stat,
3410 .mpo_vnode_check_unlink = mls_vnode_check_unlink,
3411 .mpo_vnode_check_write = mls_vnode_check_write,
3412 .mpo_vnode_copy_label = mls_copy_label,
3413 .mpo_vnode_create_extattr = mls_vnode_create_extattr,
3414 .mpo_vnode_destroy_label = mls_destroy_label,
3415 .mpo_vnode_externalize_label = mls_externalize_label,
3416 .mpo_vnode_init_label = mls_init_label,
3417 .mpo_vnode_internalize_label = mls_internalize_label,
3418 .mpo_vnode_relabel = mls_vnode_relabel,
3419 .mpo_vnode_setlabel_extattr = mls_vnode_setlabel_extattr,
3422 MAC_POLICY_SET(&mls_ops, mac_mls, "TrustedBSD MAC/MLS",
3423 MPC_LOADTIME_FLAG_NOTLATE, &mls_slot);