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,
97 CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
98 "TrustedBSD mac_mls policy controls");
100 static int mls_label_size = sizeof(struct mac_mls);
101 SYSCTL_INT(_security_mac_mls, OID_AUTO, label_size, CTLFLAG_RD,
102 &mls_label_size, 0, "Size of struct mac_mls");
104 static int mls_enabled = 1;
105 SYSCTL_INT(_security_mac_mls, OID_AUTO, enabled, CTLFLAG_RWTUN, &mls_enabled, 0,
106 "Enforce MAC/MLS policy");
108 static int destroyed_not_inited;
109 SYSCTL_INT(_security_mac_mls, OID_AUTO, destroyed_not_inited, CTLFLAG_RD,
110 &destroyed_not_inited, 0, "Count of labels destroyed but not inited");
112 static int ptys_equal = 0;
113 SYSCTL_INT(_security_mac_mls, OID_AUTO, ptys_equal, CTLFLAG_RWTUN,
114 &ptys_equal, 0, "Label pty devices as mls/equal on create");
116 static int revocation_enabled = 0;
117 SYSCTL_INT(_security_mac_mls, OID_AUTO, revocation_enabled, CTLFLAG_RWTUN,
118 &revocation_enabled, 0, "Revoke access to objects on relabel");
120 static int max_compartments = MAC_MLS_MAX_COMPARTMENTS;
121 SYSCTL_INT(_security_mac_mls, OID_AUTO, max_compartments, CTLFLAG_RD,
122 &max_compartments, 0, "Maximum compartments the policy supports");
125 #define SLOT(l) ((struct mac_mls *)mac_label_get((l), mls_slot))
126 #define SLOT_SET(l, val) mac_label_set((l), mls_slot, (uintptr_t)(val))
128 static uma_zone_t zone_mls;
131 mls_bit_set_empty(u_char *set) {
134 for (i = 0; i < MAC_MLS_MAX_COMPARTMENTS >> 3; i++)
140 static struct mac_mls *
144 return (uma_zalloc(zone_mls, flag | M_ZERO));
148 mls_free(struct mac_mls *mm)
152 uma_zfree(zone_mls, mm);
154 atomic_add_int(&destroyed_not_inited, 1);
158 mls_atmostflags(struct mac_mls *mm, int flags)
161 if ((mm->mm_flags & flags) != mm->mm_flags)
167 mls_dominate_element(struct mac_mls_element *a, struct mac_mls_element *b)
171 switch (a->mme_type) {
172 case MAC_MLS_TYPE_EQUAL:
173 case MAC_MLS_TYPE_HIGH:
176 case MAC_MLS_TYPE_LOW:
177 switch (b->mme_type) {
178 case MAC_MLS_TYPE_LEVEL:
179 case MAC_MLS_TYPE_HIGH:
182 case MAC_MLS_TYPE_EQUAL:
183 case MAC_MLS_TYPE_LOW:
187 panic("mls_dominate_element: b->mme_type invalid");
190 case MAC_MLS_TYPE_LEVEL:
191 switch (b->mme_type) {
192 case MAC_MLS_TYPE_EQUAL:
193 case MAC_MLS_TYPE_LOW:
196 case MAC_MLS_TYPE_HIGH:
199 case MAC_MLS_TYPE_LEVEL:
200 for (bit = 1; bit <= MAC_MLS_MAX_COMPARTMENTS; bit++)
201 if (!MAC_MLS_BIT_TEST(bit,
202 a->mme_compartments) &&
203 MAC_MLS_BIT_TEST(bit, b->mme_compartments))
205 return (a->mme_level >= b->mme_level);
208 panic("mls_dominate_element: b->mme_type invalid");
212 panic("mls_dominate_element: a->mme_type invalid");
219 mls_range_in_range(struct mac_mls *rangea, struct mac_mls *rangeb)
222 return (mls_dominate_element(&rangeb->mm_rangehigh,
223 &rangea->mm_rangehigh) &&
224 mls_dominate_element(&rangea->mm_rangelow,
225 &rangeb->mm_rangelow));
229 mls_effective_in_range(struct mac_mls *effective, struct mac_mls *range)
232 KASSERT((effective->mm_flags & MAC_MLS_FLAG_EFFECTIVE) != 0,
233 ("mls_effective_in_range: a not effective"));
234 KASSERT((range->mm_flags & MAC_MLS_FLAG_RANGE) != 0,
235 ("mls_effective_in_range: b not range"));
237 return (mls_dominate_element(&range->mm_rangehigh,
238 &effective->mm_effective) &&
239 mls_dominate_element(&effective->mm_effective,
240 &range->mm_rangelow));
246 mls_dominate_effective(struct mac_mls *a, struct mac_mls *b)
248 KASSERT((a->mm_flags & MAC_MLS_FLAG_EFFECTIVE) != 0,
249 ("mls_dominate_effective: a not effective"));
250 KASSERT((b->mm_flags & MAC_MLS_FLAG_EFFECTIVE) != 0,
251 ("mls_dominate_effective: b not effective"));
253 return (mls_dominate_element(&a->mm_effective, &b->mm_effective));
257 mls_equal_element(struct mac_mls_element *a, struct mac_mls_element *b)
260 if (a->mme_type == MAC_MLS_TYPE_EQUAL ||
261 b->mme_type == MAC_MLS_TYPE_EQUAL)
264 return (a->mme_type == b->mme_type && a->mme_level == b->mme_level);
268 mls_equal_effective(struct mac_mls *a, struct mac_mls *b)
271 KASSERT((a->mm_flags & MAC_MLS_FLAG_EFFECTIVE) != 0,
272 ("mls_equal_effective: a not effective"));
273 KASSERT((b->mm_flags & MAC_MLS_FLAG_EFFECTIVE) != 0,
274 ("mls_equal_effective: b not effective"));
276 return (mls_equal_element(&a->mm_effective, &b->mm_effective));
280 mls_contains_equal(struct mac_mls *mm)
283 if (mm->mm_flags & MAC_MLS_FLAG_EFFECTIVE)
284 if (mm->mm_effective.mme_type == MAC_MLS_TYPE_EQUAL)
287 if (mm->mm_flags & MAC_MLS_FLAG_RANGE) {
288 if (mm->mm_rangelow.mme_type == MAC_MLS_TYPE_EQUAL)
290 if (mm->mm_rangehigh.mme_type == MAC_MLS_TYPE_EQUAL)
298 mls_subject_privileged(struct mac_mls *mm)
301 KASSERT((mm->mm_flags & MAC_MLS_FLAGS_BOTH) == MAC_MLS_FLAGS_BOTH,
302 ("mls_subject_privileged: subject doesn't have both labels"));
304 /* If the effective is EQUAL, it's ok. */
305 if (mm->mm_effective.mme_type == MAC_MLS_TYPE_EQUAL)
308 /* If either range endpoint is EQUAL, it's ok. */
309 if (mm->mm_rangelow.mme_type == MAC_MLS_TYPE_EQUAL ||
310 mm->mm_rangehigh.mme_type == MAC_MLS_TYPE_EQUAL)
313 /* If the range is low-high, it's ok. */
314 if (mm->mm_rangelow.mme_type == MAC_MLS_TYPE_LOW &&
315 mm->mm_rangehigh.mme_type == MAC_MLS_TYPE_HIGH)
323 mls_valid(struct mac_mls *mm)
326 if (mm->mm_flags & MAC_MLS_FLAG_EFFECTIVE) {
327 switch (mm->mm_effective.mme_type) {
328 case MAC_MLS_TYPE_LEVEL:
331 case MAC_MLS_TYPE_EQUAL:
332 case MAC_MLS_TYPE_HIGH:
333 case MAC_MLS_TYPE_LOW:
334 if (mm->mm_effective.mme_level != 0 ||
335 !MAC_MLS_BIT_SET_EMPTY(
336 mm->mm_effective.mme_compartments))
344 if (mm->mm_effective.mme_type != MAC_MLS_TYPE_UNDEF)
348 if (mm->mm_flags & MAC_MLS_FLAG_RANGE) {
349 switch (mm->mm_rangelow.mme_type) {
350 case MAC_MLS_TYPE_LEVEL:
353 case MAC_MLS_TYPE_EQUAL:
354 case MAC_MLS_TYPE_HIGH:
355 case MAC_MLS_TYPE_LOW:
356 if (mm->mm_rangelow.mme_level != 0 ||
357 !MAC_MLS_BIT_SET_EMPTY(
358 mm->mm_rangelow.mme_compartments))
366 switch (mm->mm_rangehigh.mme_type) {
367 case MAC_MLS_TYPE_LEVEL:
370 case MAC_MLS_TYPE_EQUAL:
371 case MAC_MLS_TYPE_HIGH:
372 case MAC_MLS_TYPE_LOW:
373 if (mm->mm_rangehigh.mme_level != 0 ||
374 !MAC_MLS_BIT_SET_EMPTY(
375 mm->mm_rangehigh.mme_compartments))
382 if (!mls_dominate_element(&mm->mm_rangehigh,
386 if (mm->mm_rangelow.mme_type != MAC_MLS_TYPE_UNDEF ||
387 mm->mm_rangehigh.mme_type != MAC_MLS_TYPE_UNDEF)
395 mls_set_range(struct mac_mls *mm, u_short typelow, u_short levellow,
396 u_char *compartmentslow, u_short typehigh, u_short levelhigh,
397 u_char *compartmentshigh)
400 mm->mm_rangelow.mme_type = typelow;
401 mm->mm_rangelow.mme_level = levellow;
402 if (compartmentslow != NULL)
403 memcpy(mm->mm_rangelow.mme_compartments, compartmentslow,
404 sizeof(mm->mm_rangelow.mme_compartments));
405 mm->mm_rangehigh.mme_type = typehigh;
406 mm->mm_rangehigh.mme_level = levelhigh;
407 if (compartmentshigh != NULL)
408 memcpy(mm->mm_rangehigh.mme_compartments, compartmentshigh,
409 sizeof(mm->mm_rangehigh.mme_compartments));
410 mm->mm_flags |= MAC_MLS_FLAG_RANGE;
414 mls_set_effective(struct mac_mls *mm, u_short type, u_short level,
415 u_char *compartments)
418 mm->mm_effective.mme_type = type;
419 mm->mm_effective.mme_level = level;
420 if (compartments != NULL)
421 memcpy(mm->mm_effective.mme_compartments, compartments,
422 sizeof(mm->mm_effective.mme_compartments));
423 mm->mm_flags |= MAC_MLS_FLAG_EFFECTIVE;
427 mls_copy_range(struct mac_mls *labelfrom, struct mac_mls *labelto)
430 KASSERT((labelfrom->mm_flags & MAC_MLS_FLAG_RANGE) != 0,
431 ("mls_copy_range: labelfrom not range"));
433 labelto->mm_rangelow = labelfrom->mm_rangelow;
434 labelto->mm_rangehigh = labelfrom->mm_rangehigh;
435 labelto->mm_flags |= MAC_MLS_FLAG_RANGE;
439 mls_copy_effective(struct mac_mls *labelfrom, struct mac_mls *labelto)
442 KASSERT((labelfrom->mm_flags & MAC_MLS_FLAG_EFFECTIVE) != 0,
443 ("mls_copy_effective: labelfrom not effective"));
445 labelto->mm_effective = labelfrom->mm_effective;
446 labelto->mm_flags |= MAC_MLS_FLAG_EFFECTIVE;
450 mls_copy(struct mac_mls *source, struct mac_mls *dest)
453 if (source->mm_flags & MAC_MLS_FLAG_EFFECTIVE)
454 mls_copy_effective(source, dest);
455 if (source->mm_flags & MAC_MLS_FLAG_RANGE)
456 mls_copy_range(source, dest);
460 * Policy module operations.
463 mls_init(struct mac_policy_conf *conf)
466 zone_mls = uma_zcreate("mac_mls", sizeof(struct mac_mls), NULL,
467 NULL, NULL, NULL, UMA_ALIGN_PTR, 0);
474 mls_init_label(struct label *label)
477 SLOT_SET(label, mls_alloc(M_WAITOK));
481 mls_init_label_waitcheck(struct label *label, int flag)
484 SLOT_SET(label, mls_alloc(flag));
485 if (SLOT(label) == NULL)
492 mls_destroy_label(struct label *label)
495 mls_free(SLOT(label));
496 SLOT_SET(label, NULL);
500 * mls_element_to_string() accepts an sbuf and MLS element. It converts the
501 * MLS element to a string and stores the result in the sbuf; if there isn't
502 * space in the sbuf, -1 is returned.
505 mls_element_to_string(struct sbuf *sb, struct mac_mls_element *element)
509 switch (element->mme_type) {
510 case MAC_MLS_TYPE_HIGH:
511 return (sbuf_printf(sb, "high"));
513 case MAC_MLS_TYPE_LOW:
514 return (sbuf_printf(sb, "low"));
516 case MAC_MLS_TYPE_EQUAL:
517 return (sbuf_printf(sb, "equal"));
519 case MAC_MLS_TYPE_LEVEL:
520 if (sbuf_printf(sb, "%d", element->mme_level) == -1)
524 for (i = 1; i <= MAC_MLS_MAX_COMPARTMENTS; i++) {
525 if (MAC_MLS_BIT_TEST(i, element->mme_compartments)) {
527 if (sbuf_putc(sb, ':') == -1)
529 if (sbuf_printf(sb, "%d", i) == -1)
533 if (sbuf_printf(sb, "+%d", i) == -1)
541 panic("mls_element_to_string: invalid type (%d)",
547 * mls_to_string() converts an MLS label to a string, and places the results
548 * in the passed sbuf. It returns 0 on success, or EINVAL if there isn't
549 * room in the sbuf. Note: the sbuf will be modified even in a failure case,
550 * so the caller may need to revert the sbuf by restoring the offset if
554 mls_to_string(struct sbuf *sb, struct mac_mls *mm)
557 if (mm->mm_flags & MAC_MLS_FLAG_EFFECTIVE) {
558 if (mls_element_to_string(sb, &mm->mm_effective) == -1)
562 if (mm->mm_flags & MAC_MLS_FLAG_RANGE) {
563 if (sbuf_putc(sb, '(') == -1)
566 if (mls_element_to_string(sb, &mm->mm_rangelow) == -1)
569 if (sbuf_putc(sb, '-') == -1)
572 if (mls_element_to_string(sb, &mm->mm_rangehigh) == -1)
575 if (sbuf_putc(sb, ')') == -1)
583 mls_externalize_label(struct label *label, char *element_name,
584 struct sbuf *sb, int *claimed)
588 if (strcmp(MAC_MLS_LABEL_NAME, element_name) != 0)
595 return (mls_to_string(sb, mm));
599 mls_parse_element(struct mac_mls_element *element, char *string)
601 char *compartment, *end, *level;
604 if (strcmp(string, "high") == 0 || strcmp(string, "hi") == 0) {
605 element->mme_type = MAC_MLS_TYPE_HIGH;
606 element->mme_level = MAC_MLS_TYPE_UNDEF;
607 } else if (strcmp(string, "low") == 0 || strcmp(string, "lo") == 0) {
608 element->mme_type = MAC_MLS_TYPE_LOW;
609 element->mme_level = MAC_MLS_TYPE_UNDEF;
610 } else if (strcmp(string, "equal") == 0 ||
611 strcmp(string, "eq") == 0) {
612 element->mme_type = MAC_MLS_TYPE_EQUAL;
613 element->mme_level = MAC_MLS_TYPE_UNDEF;
615 element->mme_type = MAC_MLS_TYPE_LEVEL;
618 * Numeric level piece of the element.
620 level = strsep(&string, ":");
621 value = strtol(level, &end, 10);
622 if (end == level || *end != '\0')
624 if (value < 0 || value > 65535)
626 element->mme_level = value;
629 * Optional compartment piece of the element. If none are
630 * included, we assume that the label has no compartments.
637 while ((compartment = strsep(&string, "+")) != NULL) {
638 value = strtol(compartment, &end, 10);
639 if (compartment == end || *end != '\0')
641 if (value < 1 || value > MAC_MLS_MAX_COMPARTMENTS)
643 MAC_MLS_BIT_SET(value, element->mme_compartments);
651 * Note: destructively consumes the string, make a local copy before calling
652 * if that's a problem.
655 mls_parse(struct mac_mls *mm, char *string)
657 char *rangehigh, *rangelow, *effective;
660 effective = strsep(&string, "(");
661 if (*effective == '\0')
664 if (string != NULL) {
665 rangelow = strsep(&string, "-");
668 rangehigh = strsep(&string, ")");
678 KASSERT((rangelow != NULL && rangehigh != NULL) ||
679 (rangelow == NULL && rangehigh == NULL),
680 ("mls_parse: range mismatch"));
682 bzero(mm, sizeof(*mm));
683 if (effective != NULL) {
684 error = mls_parse_element(&mm->mm_effective, effective);
687 mm->mm_flags |= MAC_MLS_FLAG_EFFECTIVE;
690 if (rangelow != NULL) {
691 error = mls_parse_element(&mm->mm_rangelow, rangelow);
694 error = mls_parse_element(&mm->mm_rangehigh, rangehigh);
697 mm->mm_flags |= MAC_MLS_FLAG_RANGE;
700 error = mls_valid(mm);
708 mls_internalize_label(struct label *label, char *element_name,
709 char *element_data, int *claimed)
711 struct mac_mls *mm, mm_temp;
714 if (strcmp(MAC_MLS_LABEL_NAME, element_name) != 0)
719 error = mls_parse(&mm_temp, element_data);
730 mls_copy_label(struct label *src, struct label *dest)
733 *SLOT(dest) = *SLOT(src);
737 * Object-specific entry point implementations are sorted alphabetically by
738 * object type name and then by operation.
741 mls_bpfdesc_check_receive(struct bpf_d *d, struct label *dlabel,
742 struct ifnet *ifp, struct label *ifplabel)
744 struct mac_mls *a, *b;
752 if (mls_equal_effective(a, b))
758 mls_bpfdesc_create(struct ucred *cred, struct bpf_d *d, struct label *dlabel)
760 struct mac_mls *source, *dest;
762 source = SLOT(cred->cr_label);
765 mls_copy_effective(source, dest);
769 mls_bpfdesc_create_mbuf(struct bpf_d *d, struct label *dlabel,
770 struct mbuf *m, struct label *mlabel)
772 struct mac_mls *source, *dest;
774 source = SLOT(dlabel);
777 mls_copy_effective(source, dest);
781 mls_cred_associate_nfsd(struct ucred *cred)
783 struct mac_mls *label;
785 label = SLOT(cred->cr_label);
786 mls_set_effective(label, MAC_MLS_TYPE_LOW, 0, NULL);
787 mls_set_range(label, MAC_MLS_TYPE_LOW, 0, NULL, MAC_MLS_TYPE_HIGH, 0,
792 mls_cred_check_relabel(struct ucred *cred, struct label *newlabel)
794 struct mac_mls *subj, *new;
797 subj = SLOT(cred->cr_label);
798 new = SLOT(newlabel);
801 * If there is an MLS label update for the credential, it may be an
802 * update of effective, range, or both.
804 error = mls_atmostflags(new, MAC_MLS_FLAGS_BOTH);
809 * If the MLS label is to be changed, authorize as appropriate.
811 if (new->mm_flags & MAC_MLS_FLAGS_BOTH) {
813 * If the change request modifies both the MLS label
814 * effective and range, check that the new effective will be
817 if ((new->mm_flags & MAC_MLS_FLAGS_BOTH) ==
818 MAC_MLS_FLAGS_BOTH && !mls_effective_in_range(new, new))
822 * To change the MLS effective label on a credential, the new
823 * effective label must be in the current range.
825 if (new->mm_flags & MAC_MLS_FLAG_EFFECTIVE &&
826 !mls_effective_in_range(new, subj))
830 * To change the MLS range label on a credential, the new
831 * range must be in the current range.
833 if (new->mm_flags & MAC_MLS_FLAG_RANGE &&
834 !mls_range_in_range(new, subj))
838 * To have EQUAL in any component of the new credential MLS
839 * label, the subject must already have EQUAL in their label.
841 if (mls_contains_equal(new)) {
842 error = mls_subject_privileged(subj);
852 mls_cred_check_visible(struct ucred *cr1, struct ucred *cr2)
854 struct mac_mls *subj, *obj;
859 subj = SLOT(cr1->cr_label);
860 obj = SLOT(cr2->cr_label);
863 if (!mls_dominate_effective(subj, obj))
870 mls_cred_create_init(struct ucred *cred)
872 struct mac_mls *dest;
874 dest = SLOT(cred->cr_label);
876 mls_set_effective(dest, MAC_MLS_TYPE_LOW, 0, NULL);
877 mls_set_range(dest, MAC_MLS_TYPE_LOW, 0, NULL, MAC_MLS_TYPE_HIGH, 0,
882 mls_cred_create_swapper(struct ucred *cred)
884 struct mac_mls *dest;
886 dest = SLOT(cred->cr_label);
888 mls_set_effective(dest, MAC_MLS_TYPE_EQUAL, 0, NULL);
889 mls_set_range(dest, MAC_MLS_TYPE_LOW, 0, NULL, MAC_MLS_TYPE_HIGH, 0,
894 mls_cred_relabel(struct ucred *cred, struct label *newlabel)
896 struct mac_mls *source, *dest;
898 source = SLOT(newlabel);
899 dest = SLOT(cred->cr_label);
901 mls_copy(source, dest);
905 mls_devfs_create_device(struct ucred *cred, struct mount *mp,
906 struct cdev *dev, struct devfs_dirent *de, struct label *delabel)
914 if (strcmp(dn, "null") == 0 ||
915 strcmp(dn, "zero") == 0 ||
916 strcmp(dn, "random") == 0 ||
917 strncmp(dn, "fd/", strlen("fd/")) == 0)
918 mls_type = MAC_MLS_TYPE_EQUAL;
919 else if (strcmp(dn, "kmem") == 0 ||
920 strcmp(dn, "mem") == 0)
921 mls_type = MAC_MLS_TYPE_HIGH;
922 else if (ptys_equal &&
923 (strncmp(dn, "ttyp", strlen("ttyp")) == 0 ||
924 strncmp(dn, "pts/", strlen("pts/")) == 0 ||
925 strncmp(dn, "ptyp", strlen("ptyp")) == 0))
926 mls_type = MAC_MLS_TYPE_EQUAL;
928 mls_type = MAC_MLS_TYPE_LOW;
929 mls_set_effective(mm, mls_type, 0, NULL);
933 mls_devfs_create_directory(struct mount *mp, char *dirname, int dirnamelen,
934 struct devfs_dirent *de, struct label *delabel)
939 mls_set_effective(mm, MAC_MLS_TYPE_LOW, 0, NULL);
943 mls_devfs_create_symlink(struct ucred *cred, struct mount *mp,
944 struct devfs_dirent *dd, struct label *ddlabel, struct devfs_dirent *de,
945 struct label *delabel)
947 struct mac_mls *source, *dest;
949 source = SLOT(cred->cr_label);
950 dest = SLOT(delabel);
952 mls_copy_effective(source, dest);
956 mls_devfs_update(struct mount *mp, struct devfs_dirent *de,
957 struct label *delabel, struct vnode *vp, struct label *vplabel)
959 struct mac_mls *source, *dest;
961 source = SLOT(vplabel);
962 dest = SLOT(delabel);
964 mls_copy_effective(source, dest);
968 mls_devfs_vnode_associate(struct mount *mp, struct label *mplabel,
969 struct devfs_dirent *de, struct label *delabel, struct vnode *vp,
970 struct label *vplabel)
972 struct mac_mls *source, *dest;
974 source = SLOT(delabel);
975 dest = SLOT(vplabel);
977 mls_copy_effective(source, dest);
981 mls_ifnet_check_relabel(struct ucred *cred, struct ifnet *ifp,
982 struct label *ifplabel, struct label *newlabel)
984 struct mac_mls *subj, *new;
987 subj = SLOT(cred->cr_label);
988 new = SLOT(newlabel);
991 * If there is an MLS label update for the interface, it may be an
992 * update of effective, range, or both.
994 error = mls_atmostflags(new, MAC_MLS_FLAGS_BOTH);
999 * Relabeling network interfaces requires MLS privilege.
1001 return (mls_subject_privileged(subj));
1005 mls_ifnet_check_transmit(struct ifnet *ifp, struct label *ifplabel,
1006 struct mbuf *m, struct label *mlabel)
1008 struct mac_mls *p, *i;
1016 return (mls_effective_in_range(p, i) ? 0 : EACCES);
1020 mls_ifnet_create(struct ifnet *ifp, struct label *ifplabel)
1022 struct mac_mls *dest;
1025 dest = SLOT(ifplabel);
1027 if (ifp->if_type == IFT_LOOP)
1028 type = MAC_MLS_TYPE_EQUAL;
1030 type = MAC_MLS_TYPE_LOW;
1032 mls_set_effective(dest, type, 0, NULL);
1033 mls_set_range(dest, type, 0, NULL, type, 0, NULL);
1037 mls_ifnet_create_mbuf(struct ifnet *ifp, struct label *ifplabel,
1038 struct mbuf *m, struct label *mlabel)
1040 struct mac_mls *source, *dest;
1042 source = SLOT(ifplabel);
1043 dest = SLOT(mlabel);
1045 mls_copy_effective(source, dest);
1049 mls_ifnet_relabel(struct ucred *cred, struct ifnet *ifp,
1050 struct label *ifplabel, struct label *newlabel)
1052 struct mac_mls *source, *dest;
1054 source = SLOT(newlabel);
1055 dest = SLOT(ifplabel);
1057 mls_copy(source, dest);
1061 mls_inpcb_check_deliver(struct inpcb *inp, struct label *inplabel,
1062 struct mbuf *m, struct label *mlabel)
1064 struct mac_mls *p, *i;
1072 return (mls_equal_effective(p, i) ? 0 : EACCES);
1076 mls_inpcb_check_visible(struct ucred *cred, struct inpcb *inp,
1077 struct label *inplabel)
1079 struct mac_mls *subj, *obj;
1084 subj = SLOT(cred->cr_label);
1085 obj = SLOT(inplabel);
1087 if (!mls_dominate_effective(subj, obj))
1094 mls_inpcb_create(struct socket *so, struct label *solabel, struct inpcb *inp,
1095 struct label *inplabel)
1097 struct mac_mls *source, *dest;
1099 source = SLOT(solabel);
1100 dest = SLOT(inplabel);
1102 mls_copy_effective(source, dest);
1106 mls_inpcb_create_mbuf(struct inpcb *inp, struct label *inplabel,
1107 struct mbuf *m, struct label *mlabel)
1109 struct mac_mls *source, *dest;
1111 source = SLOT(inplabel);
1112 dest = SLOT(mlabel);
1114 mls_copy_effective(source, dest);
1118 mls_inpcb_sosetlabel(struct socket *so, struct label *solabel,
1119 struct inpcb *inp, struct label *inplabel)
1121 struct mac_mls *source, *dest;
1123 SOCK_LOCK_ASSERT(so);
1125 source = SLOT(solabel);
1126 dest = SLOT(inplabel);
1128 mls_copy(source, dest);
1132 mls_ip6q_create(struct mbuf *m, struct label *mlabel, struct ip6q *q6,
1133 struct label *q6label)
1135 struct mac_mls *source, *dest;
1137 source = SLOT(mlabel);
1138 dest = SLOT(q6label);
1140 mls_copy_effective(source, dest);
1144 mls_ip6q_match(struct mbuf *m, struct label *mlabel, struct ip6q *q6,
1145 struct label *q6label)
1147 struct mac_mls *a, *b;
1152 return (mls_equal_effective(a, b));
1156 mls_ip6q_reassemble(struct ip6q *q6, struct label *q6label, struct mbuf *m,
1157 struct label *mlabel)
1159 struct mac_mls *source, *dest;
1161 source = SLOT(q6label);
1162 dest = SLOT(mlabel);
1164 /* Just use the head, since we require them all to match. */
1165 mls_copy_effective(source, dest);
1169 mls_ip6q_update(struct mbuf *m, struct label *mlabel, struct ip6q *q6,
1170 struct label *q6label)
1173 /* NOOP: we only accept matching labels, so no need to update */
1177 mls_ipq_create(struct mbuf *m, struct label *mlabel, struct ipq *q,
1178 struct label *qlabel)
1180 struct mac_mls *source, *dest;
1182 source = SLOT(mlabel);
1183 dest = SLOT(qlabel);
1185 mls_copy_effective(source, dest);
1189 mls_ipq_match(struct mbuf *m, struct label *mlabel, struct ipq *q,
1190 struct label *qlabel)
1192 struct mac_mls *a, *b;
1197 return (mls_equal_effective(a, b));
1201 mls_ipq_reassemble(struct ipq *q, struct label *qlabel, struct mbuf *m,
1202 struct label *mlabel)
1204 struct mac_mls *source, *dest;
1206 source = SLOT(qlabel);
1207 dest = SLOT(mlabel);
1209 /* Just use the head, since we require them all to match. */
1210 mls_copy_effective(source, dest);
1214 mls_ipq_update(struct mbuf *m, struct label *mlabel, struct ipq *q,
1215 struct label *qlabel)
1218 /* NOOP: we only accept matching labels, so no need to update */
1222 mls_mount_check_stat(struct ucred *cred, struct mount *mp,
1223 struct label *mntlabel)
1225 struct mac_mls *subj, *obj;
1230 subj = SLOT(cred->cr_label);
1231 obj = SLOT(mntlabel);
1233 if (!mls_dominate_effective(subj, obj))
1240 mls_mount_create(struct ucred *cred, struct mount *mp, struct label *mplabel)
1242 struct mac_mls *source, *dest;
1244 source = SLOT(cred->cr_label);
1245 dest = SLOT(mplabel);
1247 mls_copy_effective(source, dest);
1251 mls_netinet_arp_send(struct ifnet *ifp, struct label *ifplabel,
1252 struct mbuf *m, struct label *mlabel)
1254 struct mac_mls *dest;
1256 dest = SLOT(mlabel);
1258 mls_set_effective(dest, MAC_MLS_TYPE_EQUAL, 0, NULL);
1262 mls_netinet_firewall_reply(struct mbuf *mrecv, struct label *mrecvlabel,
1263 struct mbuf *msend, struct label *msendlabel)
1265 struct mac_mls *source, *dest;
1267 source = SLOT(mrecvlabel);
1268 dest = SLOT(msendlabel);
1270 mls_copy_effective(source, dest);
1274 mls_netinet_firewall_send(struct mbuf *m, struct label *mlabel)
1276 struct mac_mls *dest;
1278 dest = SLOT(mlabel);
1280 /* XXX: where is the label for the firewall really coming from? */
1281 mls_set_effective(dest, MAC_MLS_TYPE_EQUAL, 0, NULL);
1285 mls_netinet_fragment(struct mbuf *m, struct label *mlabel, struct mbuf *frag,
1286 struct label *fraglabel)
1288 struct mac_mls *source, *dest;
1290 source = SLOT(mlabel);
1291 dest = SLOT(fraglabel);
1293 mls_copy_effective(source, dest);
1297 mls_netinet_icmp_reply(struct mbuf *mrecv, struct label *mrecvlabel,
1298 struct mbuf *msend, struct label *msendlabel)
1300 struct mac_mls *source, *dest;
1302 source = SLOT(mrecvlabel);
1303 dest = SLOT(msendlabel);
1305 mls_copy_effective(source, dest);
1309 mls_netinet_igmp_send(struct ifnet *ifp, struct label *ifplabel,
1310 struct mbuf *m, struct label *mlabel)
1312 struct mac_mls *dest;
1314 dest = SLOT(mlabel);
1316 mls_set_effective(dest, MAC_MLS_TYPE_EQUAL, 0, NULL);
1320 mls_netinet6_nd6_send(struct ifnet *ifp, struct label *ifplabel,
1321 struct mbuf *m, struct label *mlabel)
1323 struct mac_mls *dest;
1325 dest = SLOT(mlabel);
1327 mls_set_effective(dest, MAC_MLS_TYPE_EQUAL, 0, NULL);
1331 mls_pipe_check_ioctl(struct ucred *cred, struct pipepair *pp,
1332 struct label *pplabel, unsigned long cmd, void /* caddr_t */ *data)
1338 /* XXX: This will be implemented soon... */
1344 mls_pipe_check_poll(struct ucred *cred, struct pipepair *pp,
1345 struct label *pplabel)
1347 struct mac_mls *subj, *obj;
1352 subj = SLOT(cred->cr_label);
1353 obj = SLOT(pplabel);
1355 if (!mls_dominate_effective(subj, obj))
1362 mls_pipe_check_read(struct ucred *cred, struct pipepair *pp,
1363 struct label *pplabel)
1365 struct mac_mls *subj, *obj;
1370 subj = SLOT(cred->cr_label);
1371 obj = SLOT(pplabel);
1373 if (!mls_dominate_effective(subj, obj))
1380 mls_pipe_check_relabel(struct ucred *cred, struct pipepair *pp,
1381 struct label *pplabel, struct label *newlabel)
1383 struct mac_mls *subj, *obj, *new;
1386 new = SLOT(newlabel);
1387 subj = SLOT(cred->cr_label);
1388 obj = SLOT(pplabel);
1391 * If there is an MLS label update for a pipe, it must be a effective
1394 error = mls_atmostflags(new, MAC_MLS_FLAG_EFFECTIVE);
1399 * To perform a relabel of a pipe (MLS label or not), MLS must
1400 * authorize the relabel.
1402 if (!mls_effective_in_range(obj, subj))
1406 * If the MLS label is to be changed, authorize as appropriate.
1408 if (new->mm_flags & MAC_MLS_FLAG_EFFECTIVE) {
1410 * To change the MLS label on a pipe, the new pipe label must
1411 * be in the subject range.
1413 if (!mls_effective_in_range(new, subj))
1417 * To change the MLS label on a pipe to be EQUAL, the subject
1418 * must have appropriate privilege.
1420 if (mls_contains_equal(new)) {
1421 error = mls_subject_privileged(subj);
1431 mls_pipe_check_stat(struct ucred *cred, struct pipepair *pp,
1432 struct label *pplabel)
1434 struct mac_mls *subj, *obj;
1439 subj = SLOT(cred->cr_label);
1440 obj = SLOT(pplabel);
1442 if (!mls_dominate_effective(subj, obj))
1449 mls_pipe_check_write(struct ucred *cred, struct pipepair *pp,
1450 struct label *pplabel)
1452 struct mac_mls *subj, *obj;
1457 subj = SLOT(cred->cr_label);
1458 obj = SLOT(pplabel);
1460 if (!mls_dominate_effective(obj, subj))
1467 mls_pipe_create(struct ucred *cred, struct pipepair *pp,
1468 struct label *pplabel)
1470 struct mac_mls *source, *dest;
1472 source = SLOT(cred->cr_label);
1473 dest = SLOT(pplabel);
1475 mls_copy_effective(source, dest);
1479 mls_pipe_relabel(struct ucred *cred, struct pipepair *pp,
1480 struct label *pplabel, struct label *newlabel)
1482 struct mac_mls *source, *dest;
1484 source = SLOT(newlabel);
1485 dest = SLOT(pplabel);
1487 mls_copy(source, dest);
1491 mls_posixsem_check_openunlink(struct ucred *cred, struct ksem *ks,
1492 struct label *kslabel)
1494 struct mac_mls *subj, *obj;
1499 subj = SLOT(cred->cr_label);
1500 obj = SLOT(kslabel);
1502 if (!mls_dominate_effective(obj, subj))
1509 mls_posixsem_check_rdonly(struct ucred *active_cred, struct ucred *file_cred,
1510 struct ksem *ks, struct label *kslabel)
1512 struct mac_mls *subj, *obj;
1517 subj = SLOT(active_cred->cr_label);
1518 obj = SLOT(kslabel);
1520 if (!mls_dominate_effective(subj, obj))
1527 mls_posixsem_check_setmode(struct ucred *cred, struct ksem *ks,
1528 struct label *shmlabel, mode_t mode)
1530 struct mac_mls *subj, *obj;
1535 subj = SLOT(cred->cr_label);
1536 obj = SLOT(shmlabel);
1538 if (!mls_dominate_effective(obj, subj))
1545 mls_posixsem_check_setowner(struct ucred *cred, struct ksem *ks,
1546 struct label *shmlabel, uid_t uid, gid_t gid)
1548 struct mac_mls *subj, *obj;
1553 subj = SLOT(cred->cr_label);
1554 obj = SLOT(shmlabel);
1556 if (!mls_dominate_effective(obj, subj))
1563 mls_posixsem_check_write(struct ucred *active_cred, struct ucred *file_cred,
1564 struct ksem *ks, struct label *kslabel)
1566 struct mac_mls *subj, *obj;
1571 subj = SLOT(active_cred->cr_label);
1572 obj = SLOT(kslabel);
1574 if (!mls_dominate_effective(obj, subj))
1581 mls_posixsem_create(struct ucred *cred, struct ksem *ks,
1582 struct label *kslabel)
1584 struct mac_mls *source, *dest;
1586 source = SLOT(cred->cr_label);
1587 dest = SLOT(kslabel);
1589 mls_copy_effective(source, dest);
1593 mls_posixshm_check_mmap(struct ucred *cred, struct shmfd *shmfd,
1594 struct label *shmlabel, int prot, int flags)
1596 struct mac_mls *subj, *obj;
1601 subj = SLOT(cred->cr_label);
1602 obj = SLOT(shmlabel);
1604 if (prot & (VM_PROT_READ | VM_PROT_EXECUTE)) {
1605 if (!mls_dominate_effective(subj, obj))
1608 if (((prot & VM_PROT_WRITE) != 0) && ((flags & MAP_SHARED) != 0)) {
1609 if (!mls_dominate_effective(obj, subj))
1617 mls_posixshm_check_open(struct ucred *cred, struct shmfd *shmfd,
1618 struct label *shmlabel, accmode_t accmode)
1620 struct mac_mls *subj, *obj;
1625 subj = SLOT(cred->cr_label);
1626 obj = SLOT(shmlabel);
1628 if (accmode & (VREAD | VEXEC | VSTAT_PERMS)) {
1629 if (!mls_dominate_effective(subj, obj))
1632 if (accmode & VMODIFY_PERMS) {
1633 if (!mls_dominate_effective(obj, subj))
1641 mls_posixshm_check_read(struct ucred *active_cred, struct ucred *file_cred,
1642 struct shmfd *shm, struct label *shmlabel)
1644 struct mac_mls *subj, *obj;
1646 if (!mls_enabled || !revocation_enabled)
1649 subj = SLOT(active_cred->cr_label);
1650 obj = SLOT(shmlabel);
1652 if (!mls_dominate_effective(subj, obj))
1659 mls_posixshm_check_setmode(struct ucred *cred, struct shmfd *shmfd,
1660 struct label *shmlabel, mode_t mode)
1662 struct mac_mls *subj, *obj;
1667 subj = SLOT(cred->cr_label);
1668 obj = SLOT(shmlabel);
1670 if (!mls_dominate_effective(obj, subj))
1677 mls_posixshm_check_setowner(struct ucred *cred, struct shmfd *shmfd,
1678 struct label *shmlabel, uid_t uid, gid_t gid)
1680 struct mac_mls *subj, *obj;
1685 subj = SLOT(cred->cr_label);
1686 obj = SLOT(shmlabel);
1688 if (!mls_dominate_effective(obj, subj))
1695 mls_posixshm_check_stat(struct ucred *active_cred, struct ucred *file_cred,
1696 struct shmfd *shmfd, struct label *shmlabel)
1698 struct mac_mls *subj, *obj;
1703 subj = SLOT(active_cred->cr_label);
1704 obj = SLOT(shmlabel);
1706 if (!mls_dominate_effective(subj, obj))
1713 mls_posixshm_check_truncate(struct ucred *active_cred,
1714 struct ucred *file_cred, struct shmfd *shmfd, struct label *shmlabel)
1716 struct mac_mls *subj, *obj;
1721 subj = SLOT(active_cred->cr_label);
1722 obj = SLOT(shmlabel);
1724 if (!mls_dominate_effective(obj, subj))
1731 mls_posixshm_check_unlink(struct ucred *cred, struct shmfd *shmfd,
1732 struct label *shmlabel)
1734 struct mac_mls *subj, *obj;
1739 subj = SLOT(cred->cr_label);
1740 obj = SLOT(shmlabel);
1742 if (!mls_dominate_effective(obj, subj))
1749 mls_posixshm_check_write(struct ucred *active_cred, struct ucred *file_cred,
1750 struct shmfd *shm, struct label *shmlabel)
1752 struct mac_mls *subj, *obj;
1754 if (!mls_enabled || !revocation_enabled)
1757 subj = SLOT(active_cred->cr_label);
1758 obj = SLOT(shmlabel);
1760 if (!mls_dominate_effective(subj, obj))
1767 mls_posixshm_create(struct ucred *cred, struct shmfd *shmfd,
1768 struct label *shmlabel)
1770 struct mac_mls *source, *dest;
1772 source = SLOT(cred->cr_label);
1773 dest = SLOT(shmlabel);
1775 mls_copy_effective(source, dest);
1779 mls_proc_check_debug(struct ucred *cred, struct proc *p)
1781 struct mac_mls *subj, *obj;
1786 subj = SLOT(cred->cr_label);
1787 obj = SLOT(p->p_ucred->cr_label);
1789 /* XXX: range checks */
1790 if (!mls_dominate_effective(subj, obj))
1792 if (!mls_dominate_effective(obj, subj))
1799 mls_proc_check_sched(struct ucred *cred, struct proc *p)
1801 struct mac_mls *subj, *obj;
1806 subj = SLOT(cred->cr_label);
1807 obj = SLOT(p->p_ucred->cr_label);
1809 /* XXX: range checks */
1810 if (!mls_dominate_effective(subj, obj))
1812 if (!mls_dominate_effective(obj, subj))
1819 mls_proc_check_signal(struct ucred *cred, struct proc *p, int signum)
1821 struct mac_mls *subj, *obj;
1826 subj = SLOT(cred->cr_label);
1827 obj = SLOT(p->p_ucred->cr_label);
1829 /* XXX: range checks */
1830 if (!mls_dominate_effective(subj, obj))
1832 if (!mls_dominate_effective(obj, subj))
1839 mls_socket_check_deliver(struct socket *so, struct label *solabel,
1840 struct mbuf *m, struct label *mlabel)
1842 struct mac_mls *p, *s;
1852 error = mls_equal_effective(p, s) ? 0 : EACCES;
1859 mls_socket_check_relabel(struct ucred *cred, struct socket *so,
1860 struct label *solabel, struct label *newlabel)
1862 struct mac_mls *subj, *obj, *new;
1865 SOCK_LOCK_ASSERT(so);
1867 new = SLOT(newlabel);
1868 subj = SLOT(cred->cr_label);
1869 obj = SLOT(solabel);
1872 * If there is an MLS label update for the socket, it may be an
1873 * update of effective.
1875 error = mls_atmostflags(new, MAC_MLS_FLAG_EFFECTIVE);
1880 * To relabel a socket, the old socket effective must be in the
1883 if (!mls_effective_in_range(obj, subj))
1887 * If the MLS label is to be changed, authorize as appropriate.
1889 if (new->mm_flags & MAC_MLS_FLAG_EFFECTIVE) {
1891 * To relabel a socket, the new socket effective must be in
1892 * the subject range.
1894 if (!mls_effective_in_range(new, subj))
1898 * To change the MLS label on the socket to contain EQUAL,
1899 * the subject must have appropriate privilege.
1901 if (mls_contains_equal(new)) {
1902 error = mls_subject_privileged(subj);
1912 mls_socket_check_visible(struct ucred *cred, struct socket *so,
1913 struct label *solabel)
1915 struct mac_mls *subj, *obj;
1920 subj = SLOT(cred->cr_label);
1921 obj = SLOT(solabel);
1924 if (!mls_dominate_effective(subj, obj)) {
1934 mls_socket_create(struct ucred *cred, struct socket *so,
1935 struct label *solabel)
1937 struct mac_mls *source, *dest;
1939 source = SLOT(cred->cr_label);
1940 dest = SLOT(solabel);
1942 mls_copy_effective(source, dest);
1946 mls_socket_create_mbuf(struct socket *so, struct label *solabel,
1947 struct mbuf *m, struct label *mlabel)
1949 struct mac_mls *source, *dest;
1951 source = SLOT(solabel);
1952 dest = SLOT(mlabel);
1955 mls_copy_effective(source, dest);
1960 mls_socket_newconn(struct socket *oldso, struct label *oldsolabel,
1961 struct socket *newso, struct label *newsolabel)
1963 struct mac_mls source, *dest;
1966 source = *SLOT(oldsolabel);
1969 dest = SLOT(newsolabel);
1972 mls_copy_effective(&source, dest);
1977 mls_socket_relabel(struct ucred *cred, struct socket *so,
1978 struct label *solabel, struct label *newlabel)
1980 struct mac_mls *source, *dest;
1982 SOCK_LOCK_ASSERT(so);
1984 source = SLOT(newlabel);
1985 dest = SLOT(solabel);
1987 mls_copy(source, dest);
1991 mls_socketpeer_set_from_mbuf(struct mbuf *m, struct label *mlabel,
1992 struct socket *so, struct label *sopeerlabel)
1994 struct mac_mls *source, *dest;
1996 source = SLOT(mlabel);
1997 dest = SLOT(sopeerlabel);
2000 mls_copy_effective(source, dest);
2005 mls_socketpeer_set_from_socket(struct socket *oldso,
2006 struct label *oldsolabel, struct socket *newso,
2007 struct label *newsopeerlabel)
2009 struct mac_mls source, *dest;
2012 source = *SLOT(oldsolabel);
2015 dest = SLOT(newsopeerlabel);
2018 mls_copy_effective(&source, dest);
2023 mls_syncache_create(struct label *label, struct inpcb *inp)
2025 struct mac_mls *source, *dest;
2027 source = SLOT(inp->inp_label);
2030 mls_copy_effective(source, dest);
2034 mls_syncache_create_mbuf(struct label *sc_label, struct mbuf *m,
2035 struct label *mlabel)
2037 struct mac_mls *source, *dest;
2039 source = SLOT(sc_label);
2040 dest = SLOT(mlabel);
2042 mls_copy_effective(source, dest);
2046 mls_system_check_acct(struct ucred *cred, struct vnode *vp,
2047 struct label *vplabel)
2049 struct mac_mls *subj, *obj;
2054 if (vplabel == NULL)
2057 subj = SLOT(cred->cr_label);
2058 obj = SLOT(vplabel);
2060 if (!mls_dominate_effective(obj, subj) ||
2061 !mls_dominate_effective(subj, obj))
2068 mls_system_check_auditctl(struct ucred *cred, struct vnode *vp,
2069 struct label *vplabel)
2071 struct mac_mls *subj, *obj;
2076 subj = SLOT(cred->cr_label);
2077 obj = SLOT(vplabel);
2079 if (!mls_dominate_effective(obj, subj) ||
2080 !mls_dominate_effective(subj, obj))
2087 mls_system_check_swapon(struct ucred *cred, struct vnode *vp,
2088 struct label *vplabel)
2090 struct mac_mls *subj, *obj;
2095 subj = SLOT(cred->cr_label);
2096 obj = SLOT(vplabel);
2098 if (!mls_dominate_effective(obj, subj) ||
2099 !mls_dominate_effective(subj, obj))
2106 mls_sysvmsg_cleanup(struct label *msglabel)
2109 bzero(SLOT(msglabel), sizeof(struct mac_mls));
2113 mls_sysvmsg_create(struct ucred *cred, struct msqid_kernel *msqkptr,
2114 struct label *msqlabel, struct msg *msgptr, struct label *msglabel)
2116 struct mac_mls *source, *dest;
2118 /* Ignore the msgq label. */
2119 source = SLOT(cred->cr_label);
2120 dest = SLOT(msglabel);
2122 mls_copy_effective(source, dest);
2126 mls_sysvmsq_check_msgrcv(struct ucred *cred, struct msg *msgptr,
2127 struct label *msglabel)
2129 struct mac_mls *subj, *obj;
2134 subj = SLOT(cred->cr_label);
2135 obj = SLOT(msglabel);
2137 if (!mls_dominate_effective(subj, obj))
2144 mls_sysvmsq_check_msgrmid(struct ucred *cred, struct msg *msgptr,
2145 struct label *msglabel)
2147 struct mac_mls *subj, *obj;
2152 subj = SLOT(cred->cr_label);
2153 obj = SLOT(msglabel);
2155 if (!mls_dominate_effective(obj, subj))
2162 mls_sysvmsq_check_msqget(struct ucred *cred, struct msqid_kernel *msqkptr,
2163 struct label *msqklabel)
2165 struct mac_mls *subj, *obj;
2170 subj = SLOT(cred->cr_label);
2171 obj = SLOT(msqklabel);
2173 if (!mls_dominate_effective(subj, obj))
2180 mls_sysvmsq_check_msqsnd(struct ucred *cred, struct msqid_kernel *msqkptr,
2181 struct label *msqklabel)
2183 struct mac_mls *subj, *obj;
2188 subj = SLOT(cred->cr_label);
2189 obj = SLOT(msqklabel);
2191 if (!mls_dominate_effective(obj, subj))
2198 mls_sysvmsq_check_msqrcv(struct ucred *cred, struct msqid_kernel *msqkptr,
2199 struct label *msqklabel)
2201 struct mac_mls *subj, *obj;
2206 subj = SLOT(cred->cr_label);
2207 obj = SLOT(msqklabel);
2209 if (!mls_dominate_effective(subj, obj))
2216 mls_sysvmsq_check_msqctl(struct ucred *cred, struct msqid_kernel *msqkptr,
2217 struct label *msqklabel, int cmd)
2219 struct mac_mls *subj, *obj;
2224 subj = SLOT(cred->cr_label);
2225 obj = SLOT(msqklabel);
2230 if (!mls_dominate_effective(obj, subj))
2235 if (!mls_dominate_effective(subj, obj))
2247 mls_sysvmsq_cleanup(struct label *msqlabel)
2250 bzero(SLOT(msqlabel), sizeof(struct mac_mls));
2254 mls_sysvmsq_create(struct ucred *cred, struct msqid_kernel *msqkptr,
2255 struct label *msqlabel)
2257 struct mac_mls *source, *dest;
2259 source = SLOT(cred->cr_label);
2260 dest = SLOT(msqlabel);
2262 mls_copy_effective(source, dest);
2266 mls_sysvsem_check_semctl(struct ucred *cred, struct semid_kernel *semakptr,
2267 struct label *semaklabel, int cmd)
2269 struct mac_mls *subj, *obj;
2274 subj = SLOT(cred->cr_label);
2275 obj = SLOT(semaklabel);
2282 if (!mls_dominate_effective(obj, subj))
2292 if (!mls_dominate_effective(subj, obj))
2304 mls_sysvsem_check_semget(struct ucred *cred, struct semid_kernel *semakptr,
2305 struct label *semaklabel)
2307 struct mac_mls *subj, *obj;
2312 subj = SLOT(cred->cr_label);
2313 obj = SLOT(semaklabel);
2315 if (!mls_dominate_effective(subj, obj))
2322 mls_sysvsem_check_semop(struct ucred *cred, struct semid_kernel *semakptr,
2323 struct label *semaklabel, size_t accesstype)
2325 struct mac_mls *subj, *obj;
2330 subj = SLOT(cred->cr_label);
2331 obj = SLOT(semaklabel);
2333 if( accesstype & SEM_R )
2334 if (!mls_dominate_effective(subj, obj))
2337 if( accesstype & SEM_A )
2338 if (!mls_dominate_effective(obj, subj))
2345 mls_sysvsem_cleanup(struct label *semalabel)
2348 bzero(SLOT(semalabel), sizeof(struct mac_mls));
2352 mls_sysvsem_create(struct ucred *cred, struct semid_kernel *semakptr,
2353 struct label *semalabel)
2355 struct mac_mls *source, *dest;
2357 source = SLOT(cred->cr_label);
2358 dest = SLOT(semalabel);
2360 mls_copy_effective(source, dest);
2364 mls_sysvshm_check_shmat(struct ucred *cred, struct shmid_kernel *shmsegptr,
2365 struct label *shmseglabel, int shmflg)
2367 struct mac_mls *subj, *obj;
2372 subj = SLOT(cred->cr_label);
2373 obj = SLOT(shmseglabel);
2375 if (!mls_dominate_effective(subj, obj))
2377 if ((shmflg & SHM_RDONLY) == 0) {
2378 if (!mls_dominate_effective(obj, subj))
2386 mls_sysvshm_check_shmctl(struct ucred *cred, struct shmid_kernel *shmsegptr,
2387 struct label *shmseglabel, int cmd)
2389 struct mac_mls *subj, *obj;
2394 subj = SLOT(cred->cr_label);
2395 obj = SLOT(shmseglabel);
2400 if (!mls_dominate_effective(obj, subj))
2406 if (!mls_dominate_effective(subj, obj))
2418 mls_sysvshm_check_shmget(struct ucred *cred, struct shmid_kernel *shmsegptr,
2419 struct label *shmseglabel, int shmflg)
2421 struct mac_mls *subj, *obj;
2426 subj = SLOT(cred->cr_label);
2427 obj = SLOT(shmseglabel);
2429 if (!mls_dominate_effective(obj, subj))
2436 mls_sysvshm_cleanup(struct label *shmlabel)
2439 bzero(SLOT(shmlabel), sizeof(struct mac_mls));
2443 mls_sysvshm_create(struct ucred *cred, struct shmid_kernel *shmsegptr,
2444 struct label *shmlabel)
2446 struct mac_mls *source, *dest;
2448 source = SLOT(cred->cr_label);
2449 dest = SLOT(shmlabel);
2451 mls_copy_effective(source, dest);
2455 mls_vnode_associate_extattr(struct mount *mp, struct label *mplabel,
2456 struct vnode *vp, struct label *vplabel)
2458 struct mac_mls mm_temp, *source, *dest;
2461 source = SLOT(mplabel);
2462 dest = SLOT(vplabel);
2464 buflen = sizeof(mm_temp);
2465 bzero(&mm_temp, buflen);
2467 error = vn_extattr_get(vp, IO_NODELOCKED, MAC_MLS_EXTATTR_NAMESPACE,
2468 MAC_MLS_EXTATTR_NAME, &buflen, (char *) &mm_temp, curthread);
2469 if (error == ENOATTR || error == EOPNOTSUPP) {
2470 /* Fall back to the mntlabel. */
2471 mls_copy_effective(source, dest);
2476 if (buflen != sizeof(mm_temp)) {
2477 printf("mls_vnode_associate_extattr: bad size %d\n", buflen);
2480 if (mls_valid(&mm_temp) != 0) {
2481 printf("mls_vnode_associate_extattr: invalid\n");
2484 if ((mm_temp.mm_flags & MAC_MLS_FLAGS_BOTH) !=
2485 MAC_MLS_FLAG_EFFECTIVE) {
2486 printf("mls_associated_vnode_extattr: not effective\n");
2490 mls_copy_effective(&mm_temp, dest);
2495 mls_vnode_associate_singlelabel(struct mount *mp, struct label *mplabel,
2496 struct vnode *vp, struct label *vplabel)
2498 struct mac_mls *source, *dest;
2500 source = SLOT(mplabel);
2501 dest = SLOT(vplabel);
2503 mls_copy_effective(source, dest);
2507 mls_vnode_check_chdir(struct ucred *cred, struct vnode *dvp,
2508 struct label *dvplabel)
2510 struct mac_mls *subj, *obj;
2515 subj = SLOT(cred->cr_label);
2516 obj = SLOT(dvplabel);
2518 if (!mls_dominate_effective(subj, obj))
2525 mls_vnode_check_chroot(struct ucred *cred, struct vnode *dvp,
2526 struct label *dvplabel)
2528 struct mac_mls *subj, *obj;
2533 subj = SLOT(cred->cr_label);
2534 obj = SLOT(dvplabel);
2536 if (!mls_dominate_effective(subj, obj))
2543 mls_vnode_check_create(struct ucred *cred, struct vnode *dvp,
2544 struct label *dvplabel, struct componentname *cnp, struct vattr *vap)
2546 struct mac_mls *subj, *obj;
2551 subj = SLOT(cred->cr_label);
2552 obj = SLOT(dvplabel);
2554 if (!mls_dominate_effective(obj, subj))
2561 mls_vnode_check_deleteacl(struct ucred *cred, struct vnode *vp,
2562 struct label *vplabel, acl_type_t type)
2564 struct mac_mls *subj, *obj;
2569 subj = SLOT(cred->cr_label);
2570 obj = SLOT(vplabel);
2572 if (!mls_dominate_effective(obj, subj))
2579 mls_vnode_check_deleteextattr(struct ucred *cred, struct vnode *vp,
2580 struct label *vplabel, int attrnamespace, const char *name)
2582 struct mac_mls *subj, *obj;
2587 subj = SLOT(cred->cr_label);
2588 obj = SLOT(vplabel);
2590 if (!mls_dominate_effective(obj, subj))
2597 mls_vnode_check_exec(struct ucred *cred, struct vnode *vp,
2598 struct label *vplabel, struct image_params *imgp,
2599 struct label *execlabel)
2601 struct mac_mls *subj, *obj, *exec;
2604 if (execlabel != NULL) {
2606 * We currently don't permit labels to be changed at
2607 * exec-time as part of MLS, so disallow non-NULL MLS label
2608 * elements in the execlabel.
2610 exec = SLOT(execlabel);
2611 error = mls_atmostflags(exec, 0);
2619 subj = SLOT(cred->cr_label);
2620 obj = SLOT(vplabel);
2622 if (!mls_dominate_effective(subj, obj))
2629 mls_vnode_check_getacl(struct ucred *cred, struct vnode *vp,
2630 struct label *vplabel, acl_type_t type)
2632 struct mac_mls *subj, *obj;
2637 subj = SLOT(cred->cr_label);
2638 obj = SLOT(vplabel);
2640 if (!mls_dominate_effective(subj, obj))
2647 mls_vnode_check_getextattr(struct ucred *cred, struct vnode *vp,
2648 struct label *vplabel, int attrnamespace, const char *name)
2650 struct mac_mls *subj, *obj;
2655 subj = SLOT(cred->cr_label);
2656 obj = SLOT(vplabel);
2658 if (!mls_dominate_effective(subj, obj))
2665 mls_vnode_check_link(struct ucred *cred, struct vnode *dvp,
2666 struct label *dvplabel, struct vnode *vp, struct label *vplabel,
2667 struct componentname *cnp)
2669 struct mac_mls *subj, *obj;
2674 subj = SLOT(cred->cr_label);
2675 obj = SLOT(dvplabel);
2677 if (!mls_dominate_effective(obj, subj))
2680 obj = SLOT(vplabel);
2681 if (!mls_dominate_effective(obj, subj))
2688 mls_vnode_check_listextattr(struct ucred *cred, struct vnode *vp,
2689 struct label *vplabel, int attrnamespace)
2692 struct mac_mls *subj, *obj;
2697 subj = SLOT(cred->cr_label);
2698 obj = SLOT(vplabel);
2700 if (!mls_dominate_effective(subj, obj))
2707 mls_vnode_check_lookup(struct ucred *cred, struct vnode *dvp,
2708 struct label *dvplabel, struct componentname *cnp)
2710 struct mac_mls *subj, *obj;
2715 subj = SLOT(cred->cr_label);
2716 obj = SLOT(dvplabel);
2718 if (!mls_dominate_effective(subj, obj))
2725 mls_vnode_check_mmap(struct ucred *cred, struct vnode *vp,
2726 struct label *vplabel, int prot, int flags)
2728 struct mac_mls *subj, *obj;
2731 * Rely on the use of open()-time protections to handle
2732 * non-revocation cases.
2734 if (!mls_enabled || !revocation_enabled)
2737 subj = SLOT(cred->cr_label);
2738 obj = SLOT(vplabel);
2740 if (prot & (VM_PROT_READ | VM_PROT_EXECUTE)) {
2741 if (!mls_dominate_effective(subj, obj))
2744 if (((prot & VM_PROT_WRITE) != 0) && ((flags & MAP_SHARED) != 0)) {
2745 if (!mls_dominate_effective(obj, subj))
2753 mls_vnode_check_open(struct ucred *cred, struct vnode *vp,
2754 struct label *vplabel, accmode_t accmode)
2756 struct mac_mls *subj, *obj;
2761 subj = SLOT(cred->cr_label);
2762 obj = SLOT(vplabel);
2764 /* XXX privilege override for admin? */
2765 if (accmode & (VREAD | VEXEC | VSTAT_PERMS)) {
2766 if (!mls_dominate_effective(subj, obj))
2769 if (accmode & VMODIFY_PERMS) {
2770 if (!mls_dominate_effective(obj, subj))
2778 mls_vnode_check_poll(struct ucred *active_cred, struct ucred *file_cred,
2779 struct vnode *vp, struct label *vplabel)
2781 struct mac_mls *subj, *obj;
2783 if (!mls_enabled || !revocation_enabled)
2786 subj = SLOT(active_cred->cr_label);
2787 obj = SLOT(vplabel);
2789 if (!mls_dominate_effective(subj, obj))
2796 mls_vnode_check_read(struct ucred *active_cred, struct ucred *file_cred,
2797 struct vnode *vp, struct label *vplabel)
2799 struct mac_mls *subj, *obj;
2801 if (!mls_enabled || !revocation_enabled)
2804 subj = SLOT(active_cred->cr_label);
2805 obj = SLOT(vplabel);
2807 if (!mls_dominate_effective(subj, obj))
2814 mls_vnode_check_readdir(struct ucred *cred, struct vnode *dvp,
2815 struct label *dvplabel)
2817 struct mac_mls *subj, *obj;
2822 subj = SLOT(cred->cr_label);
2823 obj = SLOT(dvplabel);
2825 if (!mls_dominate_effective(subj, obj))
2832 mls_vnode_check_readlink(struct ucred *cred, struct vnode *vp,
2833 struct label *vplabel)
2835 struct mac_mls *subj, *obj;
2840 subj = SLOT(cred->cr_label);
2841 obj = SLOT(vplabel);
2843 if (!mls_dominate_effective(subj, obj))
2850 mls_vnode_check_relabel(struct ucred *cred, struct vnode *vp,
2851 struct label *vplabel, struct label *newlabel)
2853 struct mac_mls *old, *new, *subj;
2856 old = SLOT(vplabel);
2857 new = SLOT(newlabel);
2858 subj = SLOT(cred->cr_label);
2861 * If there is an MLS label update for the vnode, it must be a
2864 error = mls_atmostflags(new, MAC_MLS_FLAG_EFFECTIVE);
2869 * To perform a relabel of the vnode (MLS label or not), MLS must
2870 * authorize the relabel.
2872 if (!mls_effective_in_range(old, subj))
2876 * If the MLS label is to be changed, authorize as appropriate.
2878 if (new->mm_flags & MAC_MLS_FLAG_EFFECTIVE) {
2880 * To change the MLS label on a vnode, the new vnode label
2881 * must be in the subject range.
2883 if (!mls_effective_in_range(new, subj))
2887 * To change the MLS label on the vnode to be EQUAL, the
2888 * subject must have appropriate privilege.
2890 if (mls_contains_equal(new)) {
2891 error = mls_subject_privileged(subj);
2901 mls_vnode_check_rename_from(struct ucred *cred, struct vnode *dvp,
2902 struct label *dvplabel, struct vnode *vp, struct label *vplabel,
2903 struct componentname *cnp)
2905 struct mac_mls *subj, *obj;
2910 subj = SLOT(cred->cr_label);
2911 obj = SLOT(dvplabel);
2913 if (!mls_dominate_effective(obj, subj))
2916 obj = SLOT(vplabel);
2918 if (!mls_dominate_effective(obj, subj))
2925 mls_vnode_check_rename_to(struct ucred *cred, struct vnode *dvp,
2926 struct label *dvplabel, struct vnode *vp, struct label *vplabel,
2927 int samedir, struct componentname *cnp)
2929 struct mac_mls *subj, *obj;
2934 subj = SLOT(cred->cr_label);
2935 obj = SLOT(dvplabel);
2937 if (!mls_dominate_effective(obj, subj))
2941 obj = SLOT(vplabel);
2943 if (!mls_dominate_effective(obj, subj))
2951 mls_vnode_check_revoke(struct ucred *cred, struct vnode *vp,
2952 struct label *vplabel)
2954 struct mac_mls *subj, *obj;
2959 subj = SLOT(cred->cr_label);
2960 obj = SLOT(vplabel);
2962 if (!mls_dominate_effective(obj, subj))
2969 mls_vnode_check_setacl(struct ucred *cred, struct vnode *vp,
2970 struct label *vplabel, acl_type_t type, struct acl *acl)
2972 struct mac_mls *subj, *obj;
2977 subj = SLOT(cred->cr_label);
2978 obj = SLOT(vplabel);
2980 if (!mls_dominate_effective(obj, subj))
2987 mls_vnode_check_setextattr(struct ucred *cred, struct vnode *vp,
2988 struct label *vplabel, int attrnamespace, const char *name)
2990 struct mac_mls *subj, *obj;
2995 subj = SLOT(cred->cr_label);
2996 obj = SLOT(vplabel);
2998 if (!mls_dominate_effective(obj, subj))
3001 /* XXX: protect the MAC EA in a special way? */
3007 mls_vnode_check_setflags(struct ucred *cred, struct vnode *vp,
3008 struct label *vplabel, u_long flags)
3010 struct mac_mls *subj, *obj;
3015 subj = SLOT(cred->cr_label);
3016 obj = SLOT(vplabel);
3018 if (!mls_dominate_effective(obj, subj))
3025 mls_vnode_check_setmode(struct ucred *cred, struct vnode *vp,
3026 struct label *vplabel, mode_t mode)
3028 struct mac_mls *subj, *obj;
3033 subj = SLOT(cred->cr_label);
3034 obj = SLOT(vplabel);
3036 if (!mls_dominate_effective(obj, subj))
3043 mls_vnode_check_setowner(struct ucred *cred, struct vnode *vp,
3044 struct label *vplabel, uid_t uid, gid_t gid)
3046 struct mac_mls *subj, *obj;
3051 subj = SLOT(cred->cr_label);
3052 obj = SLOT(vplabel);
3054 if (!mls_dominate_effective(obj, subj))
3061 mls_vnode_check_setutimes(struct ucred *cred, struct vnode *vp,
3062 struct label *vplabel, struct timespec atime, struct timespec mtime)
3064 struct mac_mls *subj, *obj;
3069 subj = SLOT(cred->cr_label);
3070 obj = SLOT(vplabel);
3072 if (!mls_dominate_effective(obj, subj))
3079 mls_vnode_check_stat(struct ucred *active_cred, struct ucred *file_cred,
3080 struct vnode *vp, struct label *vplabel)
3082 struct mac_mls *subj, *obj;
3087 subj = SLOT(active_cred->cr_label);
3088 obj = SLOT(vplabel);
3090 if (!mls_dominate_effective(subj, obj))
3097 mls_vnode_check_unlink(struct ucred *cred, struct vnode *dvp,
3098 struct label *dvplabel, struct vnode *vp, struct label *vplabel,
3099 struct componentname *cnp)
3101 struct mac_mls *subj, *obj;
3106 subj = SLOT(cred->cr_label);
3107 obj = SLOT(dvplabel);
3109 if (!mls_dominate_effective(obj, subj))
3112 obj = SLOT(vplabel);
3114 if (!mls_dominate_effective(obj, subj))
3121 mls_vnode_check_write(struct ucred *active_cred, struct ucred *file_cred,
3122 struct vnode *vp, struct label *vplabel)
3124 struct mac_mls *subj, *obj;
3126 if (!mls_enabled || !revocation_enabled)
3129 subj = SLOT(active_cred->cr_label);
3130 obj = SLOT(vplabel);
3132 if (!mls_dominate_effective(obj, subj))
3139 mls_vnode_create_extattr(struct ucred *cred, struct mount *mp,
3140 struct label *mplabel, struct vnode *dvp, struct label *dvplabel,
3141 struct vnode *vp, struct label *vplabel, struct componentname *cnp)
3143 struct mac_mls *source, *dest, mm_temp;
3147 buflen = sizeof(mm_temp);
3148 bzero(&mm_temp, buflen);
3150 source = SLOT(cred->cr_label);
3151 dest = SLOT(vplabel);
3152 mls_copy_effective(source, &mm_temp);
3154 error = vn_extattr_set(vp, IO_NODELOCKED, MAC_MLS_EXTATTR_NAMESPACE,
3155 MAC_MLS_EXTATTR_NAME, buflen, (char *) &mm_temp, curthread);
3157 mls_copy_effective(source, dest);
3162 mls_vnode_relabel(struct ucred *cred, struct vnode *vp,
3163 struct label *vplabel, struct label *label)
3165 struct mac_mls *source, *dest;
3167 source = SLOT(label);
3168 dest = SLOT(vplabel);
3170 mls_copy(source, dest);
3174 mls_vnode_setlabel_extattr(struct ucred *cred, struct vnode *vp,
3175 struct label *vplabel, struct label *intlabel)
3177 struct mac_mls *source, mm_temp;
3181 buflen = sizeof(mm_temp);
3182 bzero(&mm_temp, buflen);
3184 source = SLOT(intlabel);
3185 if ((source->mm_flags & MAC_MLS_FLAG_EFFECTIVE) == 0)
3188 mls_copy_effective(source, &mm_temp);
3190 error = vn_extattr_set(vp, IO_NODELOCKED, MAC_MLS_EXTATTR_NAMESPACE,
3191 MAC_MLS_EXTATTR_NAME, buflen, (char *) &mm_temp, curthread);
3195 static struct mac_policy_ops mls_ops =
3197 .mpo_init = mls_init,
3199 .mpo_bpfdesc_check_receive = mls_bpfdesc_check_receive,
3200 .mpo_bpfdesc_create = mls_bpfdesc_create,
3201 .mpo_bpfdesc_create_mbuf = mls_bpfdesc_create_mbuf,
3202 .mpo_bpfdesc_destroy_label = mls_destroy_label,
3203 .mpo_bpfdesc_init_label = mls_init_label,
3205 .mpo_cred_associate_nfsd = mls_cred_associate_nfsd,
3206 .mpo_cred_check_relabel = mls_cred_check_relabel,
3207 .mpo_cred_check_visible = mls_cred_check_visible,
3208 .mpo_cred_copy_label = mls_copy_label,
3209 .mpo_cred_create_init = mls_cred_create_init,
3210 .mpo_cred_create_swapper = mls_cred_create_swapper,
3211 .mpo_cred_destroy_label = mls_destroy_label,
3212 .mpo_cred_externalize_label = mls_externalize_label,
3213 .mpo_cred_init_label = mls_init_label,
3214 .mpo_cred_internalize_label = mls_internalize_label,
3215 .mpo_cred_relabel = mls_cred_relabel,
3217 .mpo_devfs_create_device = mls_devfs_create_device,
3218 .mpo_devfs_create_directory = mls_devfs_create_directory,
3219 .mpo_devfs_create_symlink = mls_devfs_create_symlink,
3220 .mpo_devfs_destroy_label = mls_destroy_label,
3221 .mpo_devfs_init_label = mls_init_label,
3222 .mpo_devfs_update = mls_devfs_update,
3223 .mpo_devfs_vnode_associate = mls_devfs_vnode_associate,
3225 .mpo_ifnet_check_relabel = mls_ifnet_check_relabel,
3226 .mpo_ifnet_check_transmit = mls_ifnet_check_transmit,
3227 .mpo_ifnet_copy_label = mls_copy_label,
3228 .mpo_ifnet_create = mls_ifnet_create,
3229 .mpo_ifnet_create_mbuf = mls_ifnet_create_mbuf,
3230 .mpo_ifnet_destroy_label = mls_destroy_label,
3231 .mpo_ifnet_externalize_label = mls_externalize_label,
3232 .mpo_ifnet_init_label = mls_init_label,
3233 .mpo_ifnet_internalize_label = mls_internalize_label,
3234 .mpo_ifnet_relabel = mls_ifnet_relabel,
3236 .mpo_inpcb_check_deliver = mls_inpcb_check_deliver,
3237 .mpo_inpcb_check_visible = mls_inpcb_check_visible,
3238 .mpo_inpcb_create = mls_inpcb_create,
3239 .mpo_inpcb_create_mbuf = mls_inpcb_create_mbuf,
3240 .mpo_inpcb_destroy_label = mls_destroy_label,
3241 .mpo_inpcb_init_label = mls_init_label_waitcheck,
3242 .mpo_inpcb_sosetlabel = mls_inpcb_sosetlabel,
3244 .mpo_ip6q_create = mls_ip6q_create,
3245 .mpo_ip6q_destroy_label = mls_destroy_label,
3246 .mpo_ip6q_init_label = mls_init_label_waitcheck,
3247 .mpo_ip6q_match = mls_ip6q_match,
3248 .mpo_ip6q_reassemble = mls_ip6q_reassemble,
3249 .mpo_ip6q_update = mls_ip6q_update,
3251 .mpo_ipq_create = mls_ipq_create,
3252 .mpo_ipq_destroy_label = mls_destroy_label,
3253 .mpo_ipq_init_label = mls_init_label_waitcheck,
3254 .mpo_ipq_match = mls_ipq_match,
3255 .mpo_ipq_reassemble = mls_ipq_reassemble,
3256 .mpo_ipq_update = mls_ipq_update,
3258 .mpo_mbuf_copy_label = mls_copy_label,
3259 .mpo_mbuf_destroy_label = mls_destroy_label,
3260 .mpo_mbuf_init_label = mls_init_label_waitcheck,
3262 .mpo_mount_check_stat = mls_mount_check_stat,
3263 .mpo_mount_create = mls_mount_create,
3264 .mpo_mount_destroy_label = mls_destroy_label,
3265 .mpo_mount_init_label = mls_init_label,
3267 .mpo_netinet_arp_send = mls_netinet_arp_send,
3268 .mpo_netinet_firewall_reply = mls_netinet_firewall_reply,
3269 .mpo_netinet_firewall_send = mls_netinet_firewall_send,
3270 .mpo_netinet_fragment = mls_netinet_fragment,
3271 .mpo_netinet_icmp_reply = mls_netinet_icmp_reply,
3272 .mpo_netinet_igmp_send = mls_netinet_igmp_send,
3274 .mpo_netinet6_nd6_send = mls_netinet6_nd6_send,
3276 .mpo_pipe_check_ioctl = mls_pipe_check_ioctl,
3277 .mpo_pipe_check_poll = mls_pipe_check_poll,
3278 .mpo_pipe_check_read = mls_pipe_check_read,
3279 .mpo_pipe_check_relabel = mls_pipe_check_relabel,
3280 .mpo_pipe_check_stat = mls_pipe_check_stat,
3281 .mpo_pipe_check_write = mls_pipe_check_write,
3282 .mpo_pipe_copy_label = mls_copy_label,
3283 .mpo_pipe_create = mls_pipe_create,
3284 .mpo_pipe_destroy_label = mls_destroy_label,
3285 .mpo_pipe_externalize_label = mls_externalize_label,
3286 .mpo_pipe_init_label = mls_init_label,
3287 .mpo_pipe_internalize_label = mls_internalize_label,
3288 .mpo_pipe_relabel = mls_pipe_relabel,
3290 .mpo_posixsem_check_getvalue = mls_posixsem_check_rdonly,
3291 .mpo_posixsem_check_open = mls_posixsem_check_openunlink,
3292 .mpo_posixsem_check_post = mls_posixsem_check_write,
3293 .mpo_posixsem_check_setmode = mls_posixsem_check_setmode,
3294 .mpo_posixsem_check_setowner = mls_posixsem_check_setowner,
3295 .mpo_posixsem_check_stat = mls_posixsem_check_rdonly,
3296 .mpo_posixsem_check_unlink = mls_posixsem_check_openunlink,
3297 .mpo_posixsem_check_wait = mls_posixsem_check_write,
3298 .mpo_posixsem_create = mls_posixsem_create,
3299 .mpo_posixsem_destroy_label = mls_destroy_label,
3300 .mpo_posixsem_init_label = mls_init_label,
3302 .mpo_posixshm_check_mmap = mls_posixshm_check_mmap,
3303 .mpo_posixshm_check_open = mls_posixshm_check_open,
3304 .mpo_posixshm_check_read = mls_posixshm_check_read,
3305 .mpo_posixshm_check_setmode = mls_posixshm_check_setmode,
3306 .mpo_posixshm_check_setowner = mls_posixshm_check_setowner,
3307 .mpo_posixshm_check_stat = mls_posixshm_check_stat,
3308 .mpo_posixshm_check_truncate = mls_posixshm_check_truncate,
3309 .mpo_posixshm_check_unlink = mls_posixshm_check_unlink,
3310 .mpo_posixshm_check_write = mls_posixshm_check_write,
3311 .mpo_posixshm_create = mls_posixshm_create,
3312 .mpo_posixshm_destroy_label = mls_destroy_label,
3313 .mpo_posixshm_init_label = mls_init_label,
3315 .mpo_proc_check_debug = mls_proc_check_debug,
3316 .mpo_proc_check_sched = mls_proc_check_sched,
3317 .mpo_proc_check_signal = mls_proc_check_signal,
3319 .mpo_socket_check_deliver = mls_socket_check_deliver,
3320 .mpo_socket_check_relabel = mls_socket_check_relabel,
3321 .mpo_socket_check_visible = mls_socket_check_visible,
3322 .mpo_socket_copy_label = mls_copy_label,
3323 .mpo_socket_create = mls_socket_create,
3324 .mpo_socket_create_mbuf = mls_socket_create_mbuf,
3325 .mpo_socket_destroy_label = mls_destroy_label,
3326 .mpo_socket_externalize_label = mls_externalize_label,
3327 .mpo_socket_init_label = mls_init_label_waitcheck,
3328 .mpo_socket_internalize_label = mls_internalize_label,
3329 .mpo_socket_newconn = mls_socket_newconn,
3330 .mpo_socket_relabel = mls_socket_relabel,
3332 .mpo_socketpeer_destroy_label = mls_destroy_label,
3333 .mpo_socketpeer_externalize_label = mls_externalize_label,
3334 .mpo_socketpeer_init_label = mls_init_label_waitcheck,
3335 .mpo_socketpeer_set_from_mbuf = mls_socketpeer_set_from_mbuf,
3336 .mpo_socketpeer_set_from_socket = mls_socketpeer_set_from_socket,
3338 .mpo_syncache_create = mls_syncache_create,
3339 .mpo_syncache_create_mbuf = mls_syncache_create_mbuf,
3340 .mpo_syncache_destroy_label = mls_destroy_label,
3341 .mpo_syncache_init_label = mls_init_label_waitcheck,
3343 .mpo_sysvmsg_cleanup = mls_sysvmsg_cleanup,
3344 .mpo_sysvmsg_create = mls_sysvmsg_create,
3345 .mpo_sysvmsg_destroy_label = mls_destroy_label,
3346 .mpo_sysvmsg_init_label = mls_init_label,
3348 .mpo_sysvmsq_check_msgrcv = mls_sysvmsq_check_msgrcv,
3349 .mpo_sysvmsq_check_msgrmid = mls_sysvmsq_check_msgrmid,
3350 .mpo_sysvmsq_check_msqget = mls_sysvmsq_check_msqget,
3351 .mpo_sysvmsq_check_msqsnd = mls_sysvmsq_check_msqsnd,
3352 .mpo_sysvmsq_check_msqrcv = mls_sysvmsq_check_msqrcv,
3353 .mpo_sysvmsq_check_msqctl = mls_sysvmsq_check_msqctl,
3354 .mpo_sysvmsq_cleanup = mls_sysvmsq_cleanup,
3355 .mpo_sysvmsq_destroy_label = mls_destroy_label,
3356 .mpo_sysvmsq_init_label = mls_init_label,
3357 .mpo_sysvmsq_create = mls_sysvmsq_create,
3359 .mpo_sysvsem_check_semctl = mls_sysvsem_check_semctl,
3360 .mpo_sysvsem_check_semget = mls_sysvsem_check_semget,
3361 .mpo_sysvsem_check_semop = mls_sysvsem_check_semop,
3362 .mpo_sysvsem_cleanup = mls_sysvsem_cleanup,
3363 .mpo_sysvsem_create = mls_sysvsem_create,
3364 .mpo_sysvsem_destroy_label = mls_destroy_label,
3365 .mpo_sysvsem_init_label = mls_init_label,
3367 .mpo_sysvshm_check_shmat = mls_sysvshm_check_shmat,
3368 .mpo_sysvshm_check_shmctl = mls_sysvshm_check_shmctl,
3369 .mpo_sysvshm_check_shmget = mls_sysvshm_check_shmget,
3370 .mpo_sysvshm_cleanup = mls_sysvshm_cleanup,
3371 .mpo_sysvshm_create = mls_sysvshm_create,
3372 .mpo_sysvshm_destroy_label = mls_destroy_label,
3373 .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);