2 * Copyright (c) 1999-2002, 2007 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 * Redistribution and use in source and binary forms, with or without
18 * modification, are permitted provided that the following conditions
20 * 1. Redistributions of source code must retain the above copyright
21 * notice, this list of conditions and the following disclaimer.
22 * 2. Redistributions in binary form must reproduce the above copyright
23 * notice, this list of conditions and the following disclaimer in the
24 * documentation and/or other materials provided with the distribution.
26 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
42 * Developed by the TrustedBSD Project.
44 * MLS fixed label mandatory confidentiality policy.
47 #include <sys/types.h>
48 #include <sys/param.h>
51 #include <sys/extattr.h>
52 #include <sys/kernel.h>
55 #include <sys/malloc.h>
56 #include <sys/mount.h>
59 #include <sys/systm.h>
60 #include <sys/sysproto.h>
61 #include <sys/sysent.h>
62 #include <sys/systm.h>
63 #include <sys/vnode.h>
65 #include <sys/socket.h>
66 #include <sys/socketvar.h>
69 #include <sys/sysctl.h>
74 #include <fs/devfs/devfs.h>
76 #include <net/bpfdesc.h>
78 #include <net/if_types.h>
79 #include <net/if_var.h>
81 #include <netinet/in.h>
82 #include <netinet/in_pcb.h>
83 #include <netinet/ip_var.h>
88 #include <security/mac/mac_policy.h>
89 #include <security/mac_mls/mac_mls.h>
91 SYSCTL_DECL(_security_mac);
93 SYSCTL_NODE(_security_mac, OID_AUTO, mls, CTLFLAG_RW, 0,
94 "TrustedBSD mac_mls policy controls");
96 static int mls_label_size = sizeof(struct mac_mls);
97 SYSCTL_INT(_security_mac_mls, OID_AUTO, label_size, CTLFLAG_RD,
98 &mls_label_size, 0, "Size of struct mac_mls");
100 static int mls_enabled = 1;
101 SYSCTL_INT(_security_mac_mls, OID_AUTO, enabled, CTLFLAG_RW, &mls_enabled, 0,
102 "Enforce MAC/MLS policy");
103 TUNABLE_INT("security.mac.mls.enabled", &mls_enabled);
105 static int destroyed_not_inited;
106 SYSCTL_INT(_security_mac_mls, OID_AUTO, destroyed_not_inited, CTLFLAG_RD,
107 &destroyed_not_inited, 0, "Count of labels destroyed but not inited");
109 static int ptys_equal = 0;
110 SYSCTL_INT(_security_mac_mls, OID_AUTO, ptys_equal, CTLFLAG_RW,
111 &ptys_equal, 0, "Label pty devices as mls/equal on create");
112 TUNABLE_INT("security.mac.mls.ptys_equal", &ptys_equal);
114 static int revocation_enabled = 0;
115 SYSCTL_INT(_security_mac_mls, OID_AUTO, revocation_enabled, CTLFLAG_RW,
116 &revocation_enabled, 0, "Revoke access to objects on relabel");
117 TUNABLE_INT("security.mac.mls.revocation_enabled", &revocation_enabled);
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_check_relabel(struct ucred *cred, struct label *newlabel)
782 struct mac_mls *subj, *new;
785 subj = SLOT(cred->cr_label);
786 new = SLOT(newlabel);
789 * If there is an MLS label update for the credential, it may be an
790 * update of effective, range, or both.
792 error = mls_atmostflags(new, MAC_MLS_FLAGS_BOTH);
797 * If the MLS label is to be changed, authorize as appropriate.
799 if (new->mm_flags & MAC_MLS_FLAGS_BOTH) {
801 * If the change request modifies both the MLS label
802 * effective and range, check that the new effective will be
805 if ((new->mm_flags & MAC_MLS_FLAGS_BOTH) ==
806 MAC_MLS_FLAGS_BOTH && !mls_effective_in_range(new, new))
810 * To change the MLS effective label on a credential, the new
811 * effective label must be in the current range.
813 if (new->mm_flags & MAC_MLS_FLAG_EFFECTIVE &&
814 !mls_effective_in_range(new, subj))
818 * To change the MLS range label on a credential, the new
819 * range must be in the current range.
821 if (new->mm_flags & MAC_MLS_FLAG_RANGE &&
822 !mls_range_in_range(new, subj))
826 * To have EQUAL in any component of the new credential MLS
827 * label, the subject must already have EQUAL in their label.
829 if (mls_contains_equal(new)) {
830 error = mls_subject_privileged(subj);
840 mls_cred_check_visible(struct ucred *cr1, struct ucred *cr2)
842 struct mac_mls *subj, *obj;
847 subj = SLOT(cr1->cr_label);
848 obj = SLOT(cr2->cr_label);
851 if (!mls_dominate_effective(subj, obj))
858 mls_cred_relabel(struct ucred *cred, struct label *newlabel)
860 struct mac_mls *source, *dest;
862 source = SLOT(newlabel);
863 dest = SLOT(cred->cr_label);
865 mls_copy(source, dest);
869 mls_devfs_create_device(struct ucred *cred, struct mount *mp,
870 struct cdev *dev, struct devfs_dirent *de, struct label *delabel)
876 if (strcmp(dev->si_name, "null") == 0 ||
877 strcmp(dev->si_name, "zero") == 0 ||
878 strcmp(dev->si_name, "random") == 0 ||
879 strncmp(dev->si_name, "fd/", strlen("fd/")) == 0)
880 mls_type = MAC_MLS_TYPE_EQUAL;
881 else if (strcmp(dev->si_name, "kmem") == 0 ||
882 strcmp(dev->si_name, "mem") == 0)
883 mls_type = MAC_MLS_TYPE_HIGH;
884 else if (ptys_equal &&
885 (strncmp(dev->si_name, "ttyp", strlen("ttyp")) == 0 ||
886 strncmp(dev->si_name, "ptyp", strlen("ptyp")) == 0))
887 mls_type = MAC_MLS_TYPE_EQUAL;
889 mls_type = MAC_MLS_TYPE_LOW;
890 mls_set_effective(mm, mls_type, 0, NULL);
894 mls_devfs_create_directory(struct mount *mp, char *dirname, int dirnamelen,
895 struct devfs_dirent *de, struct label *delabel)
900 mls_set_effective(mm, MAC_MLS_TYPE_LOW, 0, NULL);
904 mls_devfs_create_symlink(struct ucred *cred, struct mount *mp,
905 struct devfs_dirent *dd, struct label *ddlabel, struct devfs_dirent *de,
906 struct label *delabel)
908 struct mac_mls *source, *dest;
910 source = SLOT(cred->cr_label);
911 dest = SLOT(delabel);
913 mls_copy_effective(source, dest);
917 mls_devfs_update(struct mount *mp, struct devfs_dirent *de,
918 struct label *delabel, struct vnode *vp, struct label *vplabel)
920 struct mac_mls *source, *dest;
922 source = SLOT(vplabel);
923 dest = SLOT(delabel);
925 mls_copy_effective(source, dest);
929 mls_devfs_vnode_associate(struct mount *mp, struct label *mplabel,
930 struct devfs_dirent *de, struct label *delabel, struct vnode *vp,
931 struct label *vplabel)
933 struct mac_mls *source, *dest;
935 source = SLOT(delabel);
936 dest = SLOT(vplabel);
938 mls_copy_effective(source, dest);
942 mls_ifnet_check_relabel(struct ucred *cred, struct ifnet *ifp,
943 struct label *ifplabel, struct label *newlabel)
945 struct mac_mls *subj, *new;
948 subj = SLOT(cred->cr_label);
949 new = SLOT(newlabel);
952 * If there is an MLS label update for the interface, it may be an
953 * update of effective, range, or both.
955 error = mls_atmostflags(new, MAC_MLS_FLAGS_BOTH);
960 * Relabeling network interfaces requires MLS privilege.
962 return (mls_subject_privileged(subj));
966 mls_ifnet_check_transmit(struct ifnet *ifp, struct label *ifplabel,
967 struct mbuf *m, struct label *mlabel)
969 struct mac_mls *p, *i;
977 return (mls_effective_in_range(p, i) ? 0 : EACCES);
981 mls_ifnet_create(struct ifnet *ifp, struct label *ifplabel)
983 struct mac_mls *dest;
986 dest = SLOT(ifplabel);
988 if (ifp->if_type == IFT_LOOP)
989 type = MAC_MLS_TYPE_EQUAL;
991 type = MAC_MLS_TYPE_LOW;
993 mls_set_effective(dest, type, 0, NULL);
994 mls_set_range(dest, type, 0, NULL, type, 0, NULL);
998 mls_ifnet_create_mbuf(struct ifnet *ifp, struct label *ifplabel,
999 struct mbuf *m, struct label *mlabel)
1001 struct mac_mls *source, *dest;
1003 source = SLOT(ifplabel);
1004 dest = SLOT(mlabel);
1006 mls_copy_effective(source, dest);
1010 mls_ifnet_relabel(struct ucred *cred, struct ifnet *ifp,
1011 struct label *ifplabel, struct label *newlabel)
1013 struct mac_mls *source, *dest;
1015 source = SLOT(newlabel);
1016 dest = SLOT(ifplabel);
1018 mls_copy(source, dest);
1022 mls_inpcb_check_deliver(struct inpcb *inp, struct label *inplabel,
1023 struct mbuf *m, struct label *mlabel)
1025 struct mac_mls *p, *i;
1033 return (mls_equal_effective(p, i) ? 0 : EACCES);
1037 mls_inpcb_check_visible(struct ucred *cred, struct inpcb *inp,
1038 struct label *inplabel)
1040 struct mac_mls *subj, *obj;
1045 subj = SLOT(cred->cr_label);
1046 obj = SLOT(inplabel);
1048 if (!mls_dominate_effective(subj, obj))
1055 mls_inpcb_create(struct socket *so, struct label *solabel, struct inpcb *inp,
1056 struct label *inplabel)
1058 struct mac_mls *source, *dest;
1060 source = SLOT(solabel);
1061 dest = SLOT(inplabel);
1063 mls_copy_effective(source, dest);
1067 mls_inpcb_create_mbuf(struct inpcb *inp, struct label *inplabel,
1068 struct mbuf *m, struct label *mlabel)
1070 struct mac_mls *source, *dest;
1072 source = SLOT(inplabel);
1073 dest = SLOT(mlabel);
1075 mls_copy_effective(source, dest);
1079 mls_inpcb_sosetlabel(struct socket *so, struct label *solabel,
1080 struct inpcb *inp, struct label *inplabel)
1082 struct mac_mls *source, *dest;
1084 source = SLOT(solabel);
1085 dest = SLOT(inplabel);
1087 mls_copy(source, dest);
1091 mls_ipq_create(struct mbuf *m, struct label *mlabel, struct ipq *q,
1092 struct label *qlabel)
1094 struct mac_mls *source, *dest;
1096 source = SLOT(mlabel);
1097 dest = SLOT(qlabel);
1099 mls_copy_effective(source, dest);
1103 mls_ipq_match(struct mbuf *m, struct label *mlabel, struct ipq *q,
1104 struct label *qlabel)
1106 struct mac_mls *a, *b;
1111 return (mls_equal_effective(a, b));
1115 mls_ipq_reassemble(struct ipq *q, struct label *qlabel, struct mbuf *m,
1116 struct label *mlabel)
1118 struct mac_mls *source, *dest;
1120 source = SLOT(qlabel);
1121 dest = SLOT(mlabel);
1123 /* Just use the head, since we require them all to match. */
1124 mls_copy_effective(source, dest);
1128 mls_ipq_update(struct mbuf *m, struct label *mlabel, struct ipq *q,
1129 struct label *qlabel)
1132 /* NOOP: we only accept matching labels, so no need to update */
1136 mls_mount_check_stat(struct ucred *cred, struct mount *mp,
1137 struct label *mntlabel)
1139 struct mac_mls *subj, *obj;
1144 subj = SLOT(cred->cr_label);
1145 obj = SLOT(mntlabel);
1147 if (!mls_dominate_effective(subj, obj))
1154 mls_mount_create(struct ucred *cred, struct mount *mp, struct label *mplabel)
1156 struct mac_mls *source, *dest;
1158 source = SLOT(cred->cr_label);
1159 dest = SLOT(mplabel);
1161 mls_copy_effective(source, dest);
1165 mls_netatalk_aarp_send(struct ifnet *ifp, struct label *ifplabel,
1166 struct mbuf *m, struct label *mlabel)
1168 struct mac_mls *dest;
1170 dest = SLOT(mlabel);
1172 mls_set_effective(dest, MAC_MLS_TYPE_EQUAL, 0, NULL);
1176 mls_netinet_arp_send(struct ifnet *ifp, struct label *ifplabel,
1177 struct mbuf *m, struct label *mlabel)
1179 struct mac_mls *dest;
1181 dest = SLOT(mlabel);
1183 mls_set_effective(dest, MAC_MLS_TYPE_EQUAL, 0, NULL);
1187 mls_netinet_firewall_reply(struct mbuf *mrecv, struct label *mrecvlabel,
1188 struct mbuf *msend, struct label *msendlabel)
1190 struct mac_mls *source, *dest;
1192 source = SLOT(mrecvlabel);
1193 dest = SLOT(msendlabel);
1195 mls_copy_effective(source, dest);
1199 mls_netinet_firewall_send(struct mbuf *m, struct label *mlabel)
1201 struct mac_mls *dest;
1203 dest = SLOT(mlabel);
1205 /* XXX: where is the label for the firewall really comming from? */
1206 mls_set_effective(dest, MAC_MLS_TYPE_EQUAL, 0, NULL);
1210 mls_netinet_fragment(struct mbuf *m, struct label *mlabel, struct mbuf *frag,
1211 struct label *fraglabel)
1213 struct mac_mls *source, *dest;
1215 source = SLOT(mlabel);
1216 dest = SLOT(fraglabel);
1218 mls_copy_effective(source, dest);
1222 mls_netinet_icmp_reply(struct mbuf *mrecv, struct label *mrecvlabel,
1223 struct mbuf *msend, struct label *msendlabel)
1225 struct mac_mls *source, *dest;
1227 source = SLOT(mrecvlabel);
1228 dest = SLOT(msendlabel);
1230 mls_copy_effective(source, dest);
1234 mls_netinet_igmp_send(struct ifnet *ifp, struct label *ifplabel,
1235 struct mbuf *m, struct label *mlabel)
1237 struct mac_mls *dest;
1239 dest = SLOT(mlabel);
1241 mls_set_effective(dest, MAC_MLS_TYPE_EQUAL, 0, NULL);
1245 mls_netinet6_nd6_send(struct ifnet *ifp, struct label *ifplabel,
1246 struct mbuf *m, struct label *mlabel)
1248 struct mac_mls *dest;
1250 dest = SLOT(mlabel);
1252 mls_set_effective(dest, MAC_MLS_TYPE_EQUAL, 0, NULL);
1256 mls_pipe_check_ioctl(struct ucred *cred, struct pipepair *pp,
1257 struct label *pplabel, unsigned long cmd, void /* caddr_t */ *data)
1263 /* XXX: This will be implemented soon... */
1269 mls_pipe_check_poll(struct ucred *cred, struct pipepair *pp,
1270 struct label *pplabel)
1272 struct mac_mls *subj, *obj;
1277 subj = SLOT(cred->cr_label);
1278 obj = SLOT(pplabel);
1280 if (!mls_dominate_effective(subj, obj))
1287 mls_pipe_check_read(struct ucred *cred, struct pipepair *pp,
1288 struct label *pplabel)
1290 struct mac_mls *subj, *obj;
1295 subj = SLOT(cred->cr_label);
1296 obj = SLOT(pplabel);
1298 if (!mls_dominate_effective(subj, obj))
1305 mls_pipe_check_relabel(struct ucred *cred, struct pipepair *pp,
1306 struct label *pplabel, struct label *newlabel)
1308 struct mac_mls *subj, *obj, *new;
1311 new = SLOT(newlabel);
1312 subj = SLOT(cred->cr_label);
1313 obj = SLOT(pplabel);
1316 * If there is an MLS label update for a pipe, it must be a effective
1319 error = mls_atmostflags(new, MAC_MLS_FLAG_EFFECTIVE);
1324 * To perform a relabel of a pipe (MLS label or not), MLS must
1325 * authorize the relabel.
1327 if (!mls_effective_in_range(obj, subj))
1331 * If the MLS label is to be changed, authorize as appropriate.
1333 if (new->mm_flags & MAC_MLS_FLAG_EFFECTIVE) {
1335 * To change the MLS label on a pipe, the new pipe label must
1336 * be in the subject range.
1338 if (!mls_effective_in_range(new, subj))
1342 * To change the MLS label on a pipe to be EQUAL, the subject
1343 * must have appropriate privilege.
1345 if (mls_contains_equal(new)) {
1346 error = mls_subject_privileged(subj);
1356 mls_pipe_check_stat(struct ucred *cred, struct pipepair *pp,
1357 struct label *pplabel)
1359 struct mac_mls *subj, *obj;
1364 subj = SLOT(cred->cr_label);
1365 obj = SLOT(pplabel);
1367 if (!mls_dominate_effective(subj, obj))
1374 mls_pipe_check_write(struct ucred *cred, struct pipepair *pp,
1375 struct label *pplabel)
1377 struct mac_mls *subj, *obj;
1382 subj = SLOT(cred->cr_label);
1383 obj = SLOT(pplabel);
1385 if (!mls_dominate_effective(obj, subj))
1392 mls_pipe_create(struct ucred *cred, struct pipepair *pp,
1393 struct label *pplabel)
1395 struct mac_mls *source, *dest;
1397 source = SLOT(cred->cr_label);
1398 dest = SLOT(pplabel);
1400 mls_copy_effective(source, dest);
1404 mls_pipe_relabel(struct ucred *cred, struct pipepair *pp,
1405 struct label *pplabel, struct label *newlabel)
1407 struct mac_mls *source, *dest;
1409 source = SLOT(newlabel);
1410 dest = SLOT(pplabel);
1412 mls_copy(source, dest);
1416 mls_posixsem_check_openunlink(struct ucred *cred, struct ksem *ks,
1417 struct label *kslabel)
1419 struct mac_mls *subj, *obj;
1424 subj = SLOT(cred->cr_label);
1425 obj = SLOT(kslabel);
1427 if (!mls_dominate_effective(obj, subj))
1434 mls_posixsem_check_rdonly(struct ucred *active_cred, struct ucred *file_cred,
1435 struct ksem *ks, struct label *kslabel)
1437 struct mac_mls *subj, *obj;
1442 subj = SLOT(active_cred->cr_label);
1443 obj = SLOT(kslabel);
1445 if (!mls_dominate_effective(subj, obj))
1452 mls_posixsem_check_write(struct ucred *active_cred, struct ucred *file_cred,
1453 struct ksem *ks, struct label *kslabel)
1455 struct mac_mls *subj, *obj;
1460 subj = SLOT(active_cred->cr_label);
1461 obj = SLOT(kslabel);
1463 if (!mls_dominate_effective(obj, subj))
1470 mls_posixsem_create(struct ucred *cred, struct ksem *ks,
1471 struct label *kslabel)
1473 struct mac_mls *source, *dest;
1475 source = SLOT(cred->cr_label);
1476 dest = SLOT(kslabel);
1478 mls_copy_effective(source, dest);
1482 mls_proc_associate_nfsd(struct ucred *cred)
1484 struct mac_mls *label;
1486 label = SLOT(cred->cr_label);
1487 mls_set_effective(label, MAC_MLS_TYPE_LOW, 0, NULL);
1488 mls_set_range(label, MAC_MLS_TYPE_LOW, 0, NULL, MAC_MLS_TYPE_HIGH, 0,
1493 mls_proc_check_debug(struct ucred *cred, struct proc *p)
1495 struct mac_mls *subj, *obj;
1500 subj = SLOT(cred->cr_label);
1501 obj = SLOT(p->p_ucred->cr_label);
1503 /* XXX: range checks */
1504 if (!mls_dominate_effective(subj, obj))
1506 if (!mls_dominate_effective(obj, subj))
1513 mls_proc_check_sched(struct ucred *cred, struct proc *p)
1515 struct mac_mls *subj, *obj;
1520 subj = SLOT(cred->cr_label);
1521 obj = SLOT(p->p_ucred->cr_label);
1523 /* XXX: range checks */
1524 if (!mls_dominate_effective(subj, obj))
1526 if (!mls_dominate_effective(obj, subj))
1533 mls_proc_check_signal(struct ucred *cred, struct proc *p, int signum)
1535 struct mac_mls *subj, *obj;
1540 subj = SLOT(cred->cr_label);
1541 obj = SLOT(p->p_ucred->cr_label);
1543 /* XXX: range checks */
1544 if (!mls_dominate_effective(subj, obj))
1546 if (!mls_dominate_effective(obj, subj))
1553 mls_proc_create_init(struct ucred *cred)
1555 struct mac_mls *dest;
1557 dest = SLOT(cred->cr_label);
1559 mls_set_effective(dest, MAC_MLS_TYPE_LOW, 0, NULL);
1560 mls_set_range(dest, MAC_MLS_TYPE_LOW, 0, NULL, MAC_MLS_TYPE_HIGH, 0,
1565 mls_proc_create_swapper(struct ucred *cred)
1567 struct mac_mls *dest;
1569 dest = SLOT(cred->cr_label);
1571 mls_set_effective(dest, MAC_MLS_TYPE_EQUAL, 0, NULL);
1572 mls_set_range(dest, MAC_MLS_TYPE_LOW, 0, NULL, MAC_MLS_TYPE_HIGH, 0,
1577 mls_socket_check_deliver(struct socket *so, struct label *solabel,
1578 struct mbuf *m, struct label *mlabel)
1580 struct mac_mls *p, *s;
1588 return (mls_equal_effective(p, s) ? 0 : EACCES);
1592 mls_socket_check_relabel(struct ucred *cred, struct socket *so,
1593 struct label *solabel, struct label *newlabel)
1595 struct mac_mls *subj, *obj, *new;
1598 new = SLOT(newlabel);
1599 subj = SLOT(cred->cr_label);
1600 obj = SLOT(solabel);
1603 * If there is an MLS label update for the socket, it may be an
1604 * update of effective.
1606 error = mls_atmostflags(new, MAC_MLS_FLAG_EFFECTIVE);
1611 * To relabel a socket, the old socket effective must be in the
1614 if (!mls_effective_in_range(obj, subj))
1618 * If the MLS label is to be changed, authorize as appropriate.
1620 if (new->mm_flags & MAC_MLS_FLAG_EFFECTIVE) {
1622 * To relabel a socket, the new socket effective must be in
1623 * the subject range.
1625 if (!mls_effective_in_range(new, subj))
1629 * To change the MLS label on the socket to contain EQUAL,
1630 * the subject must have appropriate privilege.
1632 if (mls_contains_equal(new)) {
1633 error = mls_subject_privileged(subj);
1643 mls_socket_check_visible(struct ucred *cred, struct socket *so,
1644 struct label *solabel)
1646 struct mac_mls *subj, *obj;
1651 subj = SLOT(cred->cr_label);
1652 obj = SLOT(solabel);
1654 if (!mls_dominate_effective(subj, obj))
1661 mls_socket_create(struct ucred *cred, struct socket *so,
1662 struct label *solabel)
1664 struct mac_mls *source, *dest;
1666 source = SLOT(cred->cr_label);
1667 dest = SLOT(solabel);
1669 mls_copy_effective(source, dest);
1673 mls_socket_create_mbuf(struct socket *so, struct label *solabel,
1674 struct mbuf *m, struct label *mlabel)
1676 struct mac_mls *source, *dest;
1678 source = SLOT(solabel);
1679 dest = SLOT(mlabel);
1681 mls_copy_effective(source, dest);
1685 mls_socket_newconn(struct socket *oldso, struct label *oldsolabel,
1686 struct socket *newso, struct label *newsolabel)
1688 struct mac_mls *source, *dest;
1690 source = SLOT(oldsolabel);
1691 dest = SLOT(newsolabel);
1693 mls_copy_effective(source, dest);
1697 mls_socket_relabel(struct ucred *cred, struct socket *so,
1698 struct label *solabel, struct label *newlabel)
1700 struct mac_mls *source, *dest;
1702 source = SLOT(newlabel);
1703 dest = SLOT(solabel);
1705 mls_copy(source, dest);
1709 mls_socketpeer_set_from_mbuf(struct mbuf *m, struct label *mlabel,
1710 struct socket *so, struct label *sopeerlabel)
1712 struct mac_mls *source, *dest;
1714 source = SLOT(mlabel);
1715 dest = SLOT(sopeerlabel);
1717 mls_copy_effective(source, dest);
1721 mls_socketpeer_set_from_socket(struct socket *oldso,
1722 struct label *oldsolabel, struct socket *newso,
1723 struct label *newsopeerlabel)
1725 struct mac_mls *source, *dest;
1727 source = SLOT(oldsolabel);
1728 dest = SLOT(newsopeerlabel);
1730 mls_copy_effective(source, dest);
1734 mls_syncache_create(struct label *label, struct inpcb *inp)
1736 struct mac_mls *source, *dest;
1738 source = SLOT(inp->inp_label);
1741 mls_copy_effective(source, dest);
1745 mls_syncache_create_mbuf(struct label *sc_label, struct mbuf *m,
1746 struct label *mlabel)
1748 struct mac_mls *source, *dest;
1750 source = SLOT(sc_label);
1751 dest = SLOT(mlabel);
1753 mls_copy_effective(source, dest);
1757 mls_system_check_acct(struct ucred *cred, struct vnode *vp,
1758 struct label *vplabel)
1760 struct mac_mls *subj, *obj;
1765 subj = SLOT(cred->cr_label);
1766 obj = SLOT(vplabel);
1768 if (!mls_dominate_effective(obj, subj) ||
1769 !mls_dominate_effective(subj, obj))
1776 mls_system_check_auditctl(struct ucred *cred, struct vnode *vp,
1777 struct label *vplabel)
1779 struct mac_mls *subj, *obj;
1784 subj = SLOT(cred->cr_label);
1785 obj = SLOT(vplabel);
1787 if (!mls_dominate_effective(obj, subj) ||
1788 !mls_dominate_effective(subj, obj))
1795 mls_system_check_swapon(struct ucred *cred, struct vnode *vp,
1796 struct label *vplabel)
1798 struct mac_mls *subj, *obj;
1803 subj = SLOT(cred->cr_label);
1804 obj = SLOT(vplabel);
1806 if (!mls_dominate_effective(obj, subj) ||
1807 !mls_dominate_effective(subj, obj))
1814 mls_sysvmsg_cleanup(struct label *msglabel)
1817 bzero(SLOT(msglabel), sizeof(struct mac_mls));
1821 mls_sysvmsg_create(struct ucred *cred, struct msqid_kernel *msqkptr,
1822 struct label *msqlabel, struct msg *msgptr, struct label *msglabel)
1824 struct mac_mls *source, *dest;
1826 /* Ignore the msgq label. */
1827 source = SLOT(cred->cr_label);
1828 dest = SLOT(msglabel);
1830 mls_copy_effective(source, dest);
1834 mls_sysvmsq_check_msgrcv(struct ucred *cred, struct msg *msgptr,
1835 struct label *msglabel)
1837 struct mac_mls *subj, *obj;
1842 subj = SLOT(cred->cr_label);
1843 obj = SLOT(msglabel);
1845 if (!mls_dominate_effective(subj, obj))
1852 mls_sysvmsq_check_msgrmid(struct ucred *cred, struct msg *msgptr,
1853 struct label *msglabel)
1855 struct mac_mls *subj, *obj;
1860 subj = SLOT(cred->cr_label);
1861 obj = SLOT(msglabel);
1863 if (!mls_dominate_effective(obj, subj))
1870 mls_sysvmsq_check_msqget(struct ucred *cred, struct msqid_kernel *msqkptr,
1871 struct label *msqklabel)
1873 struct mac_mls *subj, *obj;
1878 subj = SLOT(cred->cr_label);
1879 obj = SLOT(msqklabel);
1881 if (!mls_dominate_effective(subj, obj))
1888 mls_sysvmsq_check_msqsnd(struct ucred *cred, struct msqid_kernel *msqkptr,
1889 struct label *msqklabel)
1891 struct mac_mls *subj, *obj;
1896 subj = SLOT(cred->cr_label);
1897 obj = SLOT(msqklabel);
1899 if (!mls_dominate_effective(obj, subj))
1906 mls_sysvmsq_check_msqrcv(struct ucred *cred, struct msqid_kernel *msqkptr,
1907 struct label *msqklabel)
1909 struct mac_mls *subj, *obj;
1914 subj = SLOT(cred->cr_label);
1915 obj = SLOT(msqklabel);
1917 if (!mls_dominate_effective(subj, obj))
1924 mls_sysvmsq_check_msqctl(struct ucred *cred, struct msqid_kernel *msqkptr,
1925 struct label *msqklabel, int cmd)
1927 struct mac_mls *subj, *obj;
1932 subj = SLOT(cred->cr_label);
1933 obj = SLOT(msqklabel);
1938 if (!mls_dominate_effective(obj, subj))
1943 if (!mls_dominate_effective(subj, obj))
1955 mls_sysvmsq_cleanup(struct label *msqlabel)
1958 bzero(SLOT(msqlabel), sizeof(struct mac_mls));
1962 mls_sysvmsq_create(struct ucred *cred, struct msqid_kernel *msqkptr,
1963 struct label *msqlabel)
1965 struct mac_mls *source, *dest;
1967 source = SLOT(cred->cr_label);
1968 dest = SLOT(msqlabel);
1970 mls_copy_effective(source, dest);
1974 mls_sysvsem_check_semctl(struct ucred *cred, struct semid_kernel *semakptr,
1975 struct label *semaklabel, int cmd)
1977 struct mac_mls *subj, *obj;
1982 subj = SLOT(cred->cr_label);
1983 obj = SLOT(semaklabel);
1990 if (!mls_dominate_effective(obj, subj))
2000 if (!mls_dominate_effective(subj, obj))
2012 mls_sysvsem_check_semget(struct ucred *cred, struct semid_kernel *semakptr,
2013 struct label *semaklabel)
2015 struct mac_mls *subj, *obj;
2020 subj = SLOT(cred->cr_label);
2021 obj = SLOT(semaklabel);
2023 if (!mls_dominate_effective(subj, obj))
2030 mls_sysvsem_check_semop(struct ucred *cred, struct semid_kernel *semakptr,
2031 struct label *semaklabel, size_t accesstype)
2033 struct mac_mls *subj, *obj;
2038 subj = SLOT(cred->cr_label);
2039 obj = SLOT(semaklabel);
2041 if( accesstype & SEM_R )
2042 if (!mls_dominate_effective(subj, obj))
2045 if( accesstype & SEM_A )
2046 if (!mls_dominate_effective(obj, subj))
2053 mls_sysvsem_cleanup(struct label *semalabel)
2056 bzero(SLOT(semalabel), sizeof(struct mac_mls));
2060 mls_sysvsem_create(struct ucred *cred, struct semid_kernel *semakptr,
2061 struct label *semalabel)
2063 struct mac_mls *source, *dest;
2065 source = SLOT(cred->cr_label);
2066 dest = SLOT(semalabel);
2068 mls_copy_effective(source, dest);
2072 mls_sysvshm_check_shmat(struct ucred *cred, struct shmid_kernel *shmsegptr,
2073 struct label *shmseglabel, int shmflg)
2075 struct mac_mls *subj, *obj;
2080 subj = SLOT(cred->cr_label);
2081 obj = SLOT(shmseglabel);
2083 if (!mls_dominate_effective(subj, obj))
2085 if ((shmflg & SHM_RDONLY) == 0) {
2086 if (!mls_dominate_effective(obj, subj))
2094 mls_sysvshm_check_shmctl(struct ucred *cred, struct shmid_kernel *shmsegptr,
2095 struct label *shmseglabel, int cmd)
2097 struct mac_mls *subj, *obj;
2102 subj = SLOT(cred->cr_label);
2103 obj = SLOT(shmseglabel);
2108 if (!mls_dominate_effective(obj, subj))
2114 if (!mls_dominate_effective(subj, obj))
2126 mls_sysvshm_check_shmget(struct ucred *cred, struct shmid_kernel *shmsegptr,
2127 struct label *shmseglabel, int shmflg)
2129 struct mac_mls *subj, *obj;
2134 subj = SLOT(cred->cr_label);
2135 obj = SLOT(shmseglabel);
2137 if (!mls_dominate_effective(obj, subj))
2144 mls_sysvshm_cleanup(struct label *shmlabel)
2147 bzero(SLOT(shmlabel), sizeof(struct mac_mls));
2151 mls_sysvshm_create(struct ucred *cred, struct shmid_kernel *shmsegptr,
2152 struct label *shmlabel)
2154 struct mac_mls *source, *dest;
2156 source = SLOT(cred->cr_label);
2157 dest = SLOT(shmlabel);
2159 mls_copy_effective(source, dest);
2163 mls_vnode_associate_extattr(struct mount *mp, struct label *mplabel,
2164 struct vnode *vp, struct label *vplabel)
2166 struct mac_mls mm_temp, *source, *dest;
2169 source = SLOT(mplabel);
2170 dest = SLOT(vplabel);
2172 buflen = sizeof(mm_temp);
2173 bzero(&mm_temp, buflen);
2175 error = vn_extattr_get(vp, IO_NODELOCKED, MAC_MLS_EXTATTR_NAMESPACE,
2176 MAC_MLS_EXTATTR_NAME, &buflen, (char *) &mm_temp, curthread);
2177 if (error == ENOATTR || error == EOPNOTSUPP) {
2178 /* Fall back to the mntlabel. */
2179 mls_copy_effective(source, dest);
2184 if (buflen != sizeof(mm_temp)) {
2185 printf("mls_vnode_associate_extattr: bad size %d\n", buflen);
2188 if (mls_valid(&mm_temp) != 0) {
2189 printf("mls_vnode_associate_extattr: invalid\n");
2192 if ((mm_temp.mm_flags & MAC_MLS_FLAGS_BOTH) !=
2193 MAC_MLS_FLAG_EFFECTIVE) {
2194 printf("mls_associated_vnode_extattr: not effective\n");
2198 mls_copy_effective(&mm_temp, dest);
2203 mls_vnode_associate_singlelabel(struct mount *mp, struct label *mplabel,
2204 struct vnode *vp, struct label *vplabel)
2206 struct mac_mls *source, *dest;
2208 source = SLOT(mplabel);
2209 dest = SLOT(vplabel);
2211 mls_copy_effective(source, dest);
2215 mls_vnode_check_chdir(struct ucred *cred, struct vnode *dvp,
2216 struct label *dvplabel)
2218 struct mac_mls *subj, *obj;
2223 subj = SLOT(cred->cr_label);
2224 obj = SLOT(dvplabel);
2226 if (!mls_dominate_effective(subj, obj))
2233 mls_vnode_check_chroot(struct ucred *cred, struct vnode *dvp,
2234 struct label *dvplabel)
2236 struct mac_mls *subj, *obj;
2241 subj = SLOT(cred->cr_label);
2242 obj = SLOT(dvplabel);
2244 if (!mls_dominate_effective(subj, obj))
2251 mls_vnode_check_create(struct ucred *cred, struct vnode *dvp,
2252 struct label *dvplabel, struct componentname *cnp, struct vattr *vap)
2254 struct mac_mls *subj, *obj;
2259 subj = SLOT(cred->cr_label);
2260 obj = SLOT(dvplabel);
2262 if (!mls_dominate_effective(obj, subj))
2269 mls_vnode_check_deleteacl(struct ucred *cred, struct vnode *vp,
2270 struct label *vplabel, acl_type_t type)
2272 struct mac_mls *subj, *obj;
2277 subj = SLOT(cred->cr_label);
2278 obj = SLOT(vplabel);
2280 if (!mls_dominate_effective(obj, subj))
2287 mls_vnode_check_deleteextattr(struct ucred *cred, struct vnode *vp,
2288 struct label *vplabel, int attrnamespace, const char *name)
2290 struct mac_mls *subj, *obj;
2295 subj = SLOT(cred->cr_label);
2296 obj = SLOT(vplabel);
2298 if (!mls_dominate_effective(obj, subj))
2305 mls_vnode_check_exec(struct ucred *cred, struct vnode *vp,
2306 struct label *vplabel, struct image_params *imgp,
2307 struct label *execlabel)
2309 struct mac_mls *subj, *obj, *exec;
2312 if (execlabel != NULL) {
2314 * We currently don't permit labels to be changed at
2315 * exec-time as part of MLS, so disallow non-NULL MLS label
2316 * elements in the execlabel.
2318 exec = SLOT(execlabel);
2319 error = mls_atmostflags(exec, 0);
2327 subj = SLOT(cred->cr_label);
2328 obj = SLOT(vplabel);
2330 if (!mls_dominate_effective(subj, obj))
2337 mls_vnode_check_getacl(struct ucred *cred, struct vnode *vp,
2338 struct label *vplabel, acl_type_t type)
2340 struct mac_mls *subj, *obj;
2345 subj = SLOT(cred->cr_label);
2346 obj = SLOT(vplabel);
2348 if (!mls_dominate_effective(subj, obj))
2355 mls_vnode_check_getextattr(struct ucred *cred, struct vnode *vp,
2356 struct label *vplabel, int attrnamespace, const char *name,
2359 struct mac_mls *subj, *obj;
2364 subj = SLOT(cred->cr_label);
2365 obj = SLOT(vplabel);
2367 if (!mls_dominate_effective(subj, obj))
2374 mls_vnode_check_link(struct ucred *cred, struct vnode *dvp,
2375 struct label *dvplabel, struct vnode *vp, struct label *vplabel,
2376 struct componentname *cnp)
2378 struct mac_mls *subj, *obj;
2383 subj = SLOT(cred->cr_label);
2384 obj = SLOT(dvplabel);
2386 if (!mls_dominate_effective(obj, subj))
2389 obj = SLOT(vplabel);
2390 if (!mls_dominate_effective(obj, subj))
2397 mls_vnode_check_listextattr(struct ucred *cred, struct vnode *vp,
2398 struct label *vplabel, int attrnamespace)
2401 struct mac_mls *subj, *obj;
2406 subj = SLOT(cred->cr_label);
2407 obj = SLOT(vplabel);
2409 if (!mls_dominate_effective(subj, obj))
2416 mls_vnode_check_lookup(struct ucred *cred, struct vnode *dvp,
2417 struct label *dvplabel, struct componentname *cnp)
2419 struct mac_mls *subj, *obj;
2424 subj = SLOT(cred->cr_label);
2425 obj = SLOT(dvplabel);
2427 if (!mls_dominate_effective(subj, obj))
2434 mls_vnode_check_mmap(struct ucred *cred, struct vnode *vp,
2435 struct label *vplabel, int prot, int flags)
2437 struct mac_mls *subj, *obj;
2440 * Rely on the use of open()-time protections to handle
2441 * non-revocation cases.
2443 if (!mls_enabled || !revocation_enabled)
2446 subj = SLOT(cred->cr_label);
2447 obj = SLOT(vplabel);
2449 if (prot & (VM_PROT_READ | VM_PROT_EXECUTE)) {
2450 if (!mls_dominate_effective(subj, obj))
2453 if (((prot & VM_PROT_WRITE) != 0) && ((flags & MAP_SHARED) != 0)) {
2454 if (!mls_dominate_effective(obj, subj))
2462 mls_vnode_check_open(struct ucred *cred, struct vnode *vp,
2463 struct label *vplabel, int acc_mode)
2465 struct mac_mls *subj, *obj;
2470 subj = SLOT(cred->cr_label);
2471 obj = SLOT(vplabel);
2473 /* XXX privilege override for admin? */
2474 if (acc_mode & (VREAD | VEXEC | VSTAT)) {
2475 if (!mls_dominate_effective(subj, obj))
2478 if (acc_mode & (VWRITE | VAPPEND | VADMIN)) {
2479 if (!mls_dominate_effective(obj, subj))
2487 mls_vnode_check_poll(struct ucred *active_cred, struct ucred *file_cred,
2488 struct vnode *vp, struct label *vplabel)
2490 struct mac_mls *subj, *obj;
2492 if (!mls_enabled || !revocation_enabled)
2495 subj = SLOT(active_cred->cr_label);
2496 obj = SLOT(vplabel);
2498 if (!mls_dominate_effective(subj, obj))
2505 mls_vnode_check_read(struct ucred *active_cred, struct ucred *file_cred,
2506 struct vnode *vp, struct label *vplabel)
2508 struct mac_mls *subj, *obj;
2510 if (!mls_enabled || !revocation_enabled)
2513 subj = SLOT(active_cred->cr_label);
2514 obj = SLOT(vplabel);
2516 if (!mls_dominate_effective(subj, obj))
2523 mls_vnode_check_readdir(struct ucred *cred, struct vnode *dvp,
2524 struct label *dvplabel)
2526 struct mac_mls *subj, *obj;
2531 subj = SLOT(cred->cr_label);
2532 obj = SLOT(dvplabel);
2534 if (!mls_dominate_effective(subj, obj))
2541 mls_vnode_check_readlink(struct ucred *cred, struct vnode *vp,
2542 struct label *vplabel)
2544 struct mac_mls *subj, *obj;
2549 subj = SLOT(cred->cr_label);
2550 obj = SLOT(vplabel);
2552 if (!mls_dominate_effective(subj, obj))
2559 mls_vnode_check_relabel(struct ucred *cred, struct vnode *vp,
2560 struct label *vplabel, struct label *newlabel)
2562 struct mac_mls *old, *new, *subj;
2565 old = SLOT(vplabel);
2566 new = SLOT(newlabel);
2567 subj = SLOT(cred->cr_label);
2570 * If there is an MLS label update for the vnode, it must be a
2573 error = mls_atmostflags(new, MAC_MLS_FLAG_EFFECTIVE);
2578 * To perform a relabel of the vnode (MLS label or not), MLS must
2579 * authorize the relabel.
2581 if (!mls_effective_in_range(old, subj))
2585 * If the MLS label is to be changed, authorize as appropriate.
2587 if (new->mm_flags & MAC_MLS_FLAG_EFFECTIVE) {
2589 * To change the MLS label on a vnode, the new vnode label
2590 * must be in the subject range.
2592 if (!mls_effective_in_range(new, subj))
2596 * To change the MLS label on the vnode to be EQUAL, the
2597 * subject must have appropriate privilege.
2599 if (mls_contains_equal(new)) {
2600 error = mls_subject_privileged(subj);
2610 mls_vnode_check_rename_from(struct ucred *cred, struct vnode *dvp,
2611 struct label *dvplabel, struct vnode *vp, struct label *vplabel,
2612 struct componentname *cnp)
2614 struct mac_mls *subj, *obj;
2619 subj = SLOT(cred->cr_label);
2620 obj = SLOT(dvplabel);
2622 if (!mls_dominate_effective(obj, subj))
2625 obj = SLOT(vplabel);
2627 if (!mls_dominate_effective(obj, subj))
2634 mls_vnode_check_rename_to(struct ucred *cred, struct vnode *dvp,
2635 struct label *dvplabel, struct vnode *vp, struct label *vplabel,
2636 int samedir, struct componentname *cnp)
2638 struct mac_mls *subj, *obj;
2643 subj = SLOT(cred->cr_label);
2644 obj = SLOT(dvplabel);
2646 if (!mls_dominate_effective(obj, subj))
2650 obj = SLOT(vplabel);
2652 if (!mls_dominate_effective(obj, subj))
2660 mls_vnode_check_revoke(struct ucred *cred, struct vnode *vp,
2661 struct label *vplabel)
2663 struct mac_mls *subj, *obj;
2668 subj = SLOT(cred->cr_label);
2669 obj = SLOT(vplabel);
2671 if (!mls_dominate_effective(obj, subj))
2678 mls_vnode_check_setacl(struct ucred *cred, struct vnode *vp,
2679 struct label *vplabel, acl_type_t type, struct acl *acl)
2681 struct mac_mls *subj, *obj;
2686 subj = SLOT(cred->cr_label);
2687 obj = SLOT(vplabel);
2689 if (!mls_dominate_effective(obj, subj))
2696 mls_vnode_check_setextattr(struct ucred *cred, struct vnode *vp,
2697 struct label *vplabel, int attrnamespace, const char *name,
2700 struct mac_mls *subj, *obj;
2705 subj = SLOT(cred->cr_label);
2706 obj = SLOT(vplabel);
2708 if (!mls_dominate_effective(obj, subj))
2711 /* XXX: protect the MAC EA in a special way? */
2717 mls_vnode_check_setflags(struct ucred *cred, struct vnode *vp,
2718 struct label *vplabel, u_long flags)
2720 struct mac_mls *subj, *obj;
2725 subj = SLOT(cred->cr_label);
2726 obj = SLOT(vplabel);
2728 if (!mls_dominate_effective(obj, subj))
2735 mls_vnode_check_setmode(struct ucred *cred, struct vnode *vp,
2736 struct label *vplabel, mode_t mode)
2738 struct mac_mls *subj, *obj;
2743 subj = SLOT(cred->cr_label);
2744 obj = SLOT(vplabel);
2746 if (!mls_dominate_effective(obj, subj))
2753 mls_vnode_check_setowner(struct ucred *cred, struct vnode *vp,
2754 struct label *vplabel, uid_t uid, gid_t gid)
2756 struct mac_mls *subj, *obj;
2761 subj = SLOT(cred->cr_label);
2762 obj = SLOT(vplabel);
2764 if (!mls_dominate_effective(obj, subj))
2771 mls_vnode_check_setutimes(struct ucred *cred, struct vnode *vp,
2772 struct label *vplabel, struct timespec atime, struct timespec mtime)
2774 struct mac_mls *subj, *obj;
2779 subj = SLOT(cred->cr_label);
2780 obj = SLOT(vplabel);
2782 if (!mls_dominate_effective(obj, subj))
2789 mls_vnode_check_stat(struct ucred *active_cred, struct ucred *file_cred,
2790 struct vnode *vp, struct label *vplabel)
2792 struct mac_mls *subj, *obj;
2797 subj = SLOT(active_cred->cr_label);
2798 obj = SLOT(vplabel);
2800 if (!mls_dominate_effective(subj, obj))
2807 mls_vnode_check_unlink(struct ucred *cred, struct vnode *dvp,
2808 struct label *dvplabel, struct vnode *vp, struct label *vplabel,
2809 struct componentname *cnp)
2811 struct mac_mls *subj, *obj;
2816 subj = SLOT(cred->cr_label);
2817 obj = SLOT(dvplabel);
2819 if (!mls_dominate_effective(obj, subj))
2822 obj = SLOT(vplabel);
2824 if (!mls_dominate_effective(obj, subj))
2831 mls_vnode_check_write(struct ucred *active_cred, struct ucred *file_cred,
2832 struct vnode *vp, struct label *vplabel)
2834 struct mac_mls *subj, *obj;
2836 if (!mls_enabled || !revocation_enabled)
2839 subj = SLOT(active_cred->cr_label);
2840 obj = SLOT(vplabel);
2842 if (!mls_dominate_effective(obj, subj))
2849 mls_vnode_create_extattr(struct ucred *cred, struct mount *mp,
2850 struct label *mplabel, struct vnode *dvp, struct label *dvplabel,
2851 struct vnode *vp, struct label *vplabel, struct componentname *cnp)
2853 struct mac_mls *source, *dest, mm_temp;
2857 buflen = sizeof(mm_temp);
2858 bzero(&mm_temp, buflen);
2860 source = SLOT(cred->cr_label);
2861 dest = SLOT(vplabel);
2862 mls_copy_effective(source, &mm_temp);
2864 error = vn_extattr_set(vp, IO_NODELOCKED, MAC_MLS_EXTATTR_NAMESPACE,
2865 MAC_MLS_EXTATTR_NAME, buflen, (char *) &mm_temp, curthread);
2867 mls_copy_effective(source, dest);
2872 mls_vnode_relabel(struct ucred *cred, struct vnode *vp,
2873 struct label *vplabel, struct label *label)
2875 struct mac_mls *source, *dest;
2877 source = SLOT(label);
2878 dest = SLOT(vplabel);
2880 mls_copy(source, dest);
2884 mls_vnode_setlabel_extattr(struct ucred *cred, struct vnode *vp,
2885 struct label *vplabel, struct label *intlabel)
2887 struct mac_mls *source, mm_temp;
2891 buflen = sizeof(mm_temp);
2892 bzero(&mm_temp, buflen);
2894 source = SLOT(intlabel);
2895 if ((source->mm_flags & MAC_MLS_FLAG_EFFECTIVE) == 0)
2898 mls_copy_effective(source, &mm_temp);
2900 error = vn_extattr_set(vp, IO_NODELOCKED, MAC_MLS_EXTATTR_NAMESPACE,
2901 MAC_MLS_EXTATTR_NAME, buflen, (char *) &mm_temp, curthread);
2905 static struct mac_policy_ops mls_ops =
2907 .mpo_init = mls_init,
2909 .mpo_bpfdesc_check_receive = mls_bpfdesc_check_receive,
2910 .mpo_bpfdesc_create = mls_bpfdesc_create,
2911 .mpo_bpfdesc_create_mbuf = mls_bpfdesc_create_mbuf,
2912 .mpo_bpfdesc_destroy_label = mls_destroy_label,
2913 .mpo_bpfdesc_init_label = mls_init_label,
2915 .mpo_cred_check_relabel = mls_cred_check_relabel,
2916 .mpo_cred_check_visible = mls_cred_check_visible,
2917 .mpo_cred_copy_label = mls_copy_label,
2918 .mpo_cred_destroy_label = mls_destroy_label,
2919 .mpo_cred_externalize_label = mls_externalize_label,
2920 .mpo_cred_init_label = mls_init_label,
2921 .mpo_cred_internalize_label = mls_internalize_label,
2922 .mpo_cred_relabel = mls_cred_relabel,
2924 .mpo_devfs_create_device = mls_devfs_create_device,
2925 .mpo_devfs_create_directory = mls_devfs_create_directory,
2926 .mpo_devfs_create_symlink = mls_devfs_create_symlink,
2927 .mpo_devfs_destroy_label = mls_destroy_label,
2928 .mpo_devfs_init_label = mls_init_label,
2929 .mpo_devfs_update = mls_devfs_update,
2930 .mpo_devfs_vnode_associate = mls_devfs_vnode_associate,
2932 .mpo_ifnet_check_relabel = mls_ifnet_check_relabel,
2933 .mpo_ifnet_check_transmit = mls_ifnet_check_transmit,
2934 .mpo_ifnet_copy_label = mls_copy_label,
2935 .mpo_ifnet_create = mls_ifnet_create,
2936 .mpo_ifnet_create_mbuf = mls_ifnet_create_mbuf,
2937 .mpo_ifnet_destroy_label = mls_destroy_label,
2938 .mpo_ifnet_externalize_label = mls_externalize_label,
2939 .mpo_ifnet_init_label = mls_init_label,
2940 .mpo_ifnet_internalize_label = mls_internalize_label,
2941 .mpo_ifnet_relabel = mls_ifnet_relabel,
2943 .mpo_inpcb_check_deliver = mls_inpcb_check_deliver,
2944 .mpo_inpcb_check_visible = mls_inpcb_check_visible,
2945 .mpo_inpcb_create = mls_inpcb_create,
2946 .mpo_inpcb_create_mbuf = mls_inpcb_create_mbuf,
2947 .mpo_inpcb_destroy_label = mls_destroy_label,
2948 .mpo_inpcb_init_label = mls_init_label_waitcheck,
2949 .mpo_inpcb_sosetlabel = mls_inpcb_sosetlabel,
2951 .mpo_ipq_create = mls_ipq_create,
2952 .mpo_ipq_destroy_label = mls_destroy_label,
2953 .mpo_ipq_init_label = mls_init_label_waitcheck,
2954 .mpo_ipq_match = mls_ipq_match,
2955 .mpo_ipq_reassemble = mls_ipq_reassemble,
2956 .mpo_ipq_update = mls_ipq_update,
2958 .mpo_mbuf_copy_label = mls_copy_label,
2959 .mpo_mbuf_destroy_label = mls_destroy_label,
2960 .mpo_mbuf_init_label = mls_init_label_waitcheck,
2962 .mpo_mount_check_stat = mls_mount_check_stat,
2963 .mpo_mount_create = mls_mount_create,
2964 .mpo_mount_destroy_label = mls_destroy_label,
2965 .mpo_mount_init_label = mls_init_label,
2967 .mpo_netatalk_aarp_send = mls_netatalk_aarp_send,
2969 .mpo_netinet_arp_send = mls_netinet_arp_send,
2970 .mpo_netinet_firewall_reply = mls_netinet_firewall_reply,
2971 .mpo_netinet_firewall_send = mls_netinet_firewall_send,
2972 .mpo_netinet_fragment = mls_netinet_fragment,
2973 .mpo_netinet_icmp_reply = mls_netinet_icmp_reply,
2974 .mpo_netinet_igmp_send = mls_netinet_igmp_send,
2976 .mpo_netinet6_nd6_send = mls_netinet6_nd6_send,
2978 .mpo_pipe_check_ioctl = mls_pipe_check_ioctl,
2979 .mpo_pipe_check_poll = mls_pipe_check_poll,
2980 .mpo_pipe_check_read = mls_pipe_check_read,
2981 .mpo_pipe_check_relabel = mls_pipe_check_relabel,
2982 .mpo_pipe_check_stat = mls_pipe_check_stat,
2983 .mpo_pipe_check_write = mls_pipe_check_write,
2984 .mpo_pipe_copy_label = mls_copy_label,
2985 .mpo_pipe_create = mls_pipe_create,
2986 .mpo_pipe_destroy_label = mls_destroy_label,
2987 .mpo_pipe_externalize_label = mls_externalize_label,
2988 .mpo_pipe_init_label = mls_init_label,
2989 .mpo_pipe_internalize_label = mls_internalize_label,
2990 .mpo_pipe_relabel = mls_pipe_relabel,
2992 .mpo_posixsem_check_getvalue = mls_posixsem_check_rdonly,
2993 .mpo_posixsem_check_open = mls_posixsem_check_openunlink,
2994 .mpo_posixsem_check_post = mls_posixsem_check_write,
2995 .mpo_posixsem_check_stat = mls_posixsem_check_rdonly,
2996 .mpo_posixsem_check_unlink = mls_posixsem_check_openunlink,
2997 .mpo_posixsem_check_wait = mls_posixsem_check_write,
2998 .mpo_posixsem_create = mls_posixsem_create,
2999 .mpo_posixsem_destroy_label = mls_destroy_label,
3000 .mpo_posixsem_init_label = mls_init_label,
3002 .mpo_proc_associate_nfsd = mls_proc_associate_nfsd,
3003 .mpo_proc_check_debug = mls_proc_check_debug,
3004 .mpo_proc_check_sched = mls_proc_check_sched,
3005 .mpo_proc_check_signal = mls_proc_check_signal,
3006 .mpo_proc_create_init = mls_proc_create_init,
3007 .mpo_proc_create_swapper = mls_proc_create_swapper,
3009 .mpo_socket_check_deliver = mls_socket_check_deliver,
3010 .mpo_socket_check_relabel = mls_socket_check_relabel,
3011 .mpo_socket_check_visible = mls_socket_check_visible,
3012 .mpo_socket_copy_label = mls_copy_label,
3013 .mpo_socket_create = mls_socket_create,
3014 .mpo_socket_create_mbuf = mls_socket_create_mbuf,
3015 .mpo_socket_destroy_label = mls_destroy_label,
3016 .mpo_socket_externalize_label = mls_externalize_label,
3017 .mpo_socket_init_label = mls_init_label_waitcheck,
3018 .mpo_socket_internalize_label = mls_internalize_label,
3019 .mpo_socket_newconn = mls_socket_newconn,
3020 .mpo_socket_relabel = mls_socket_relabel,
3022 .mpo_socketpeer_destroy_label = mls_destroy_label,
3023 .mpo_socketpeer_externalize_label = mls_externalize_label,
3024 .mpo_socketpeer_init_label = mls_init_label_waitcheck,
3025 .mpo_socketpeer_set_from_mbuf = mls_socketpeer_set_from_mbuf,
3026 .mpo_socketpeer_set_from_socket = mls_socketpeer_set_from_socket,
3028 .mpo_syncache_create = mls_syncache_create,
3029 .mpo_syncache_create_mbuf = mls_syncache_create_mbuf,
3030 .mpo_syncache_destroy_label = mls_destroy_label,
3031 .mpo_syncache_init_label = mls_init_label_waitcheck,
3033 .mpo_sysvmsg_cleanup = mls_sysvmsg_cleanup,
3034 .mpo_sysvmsg_create = mls_sysvmsg_create,
3035 .mpo_sysvmsg_destroy_label = mls_destroy_label,
3036 .mpo_sysvmsg_init_label = mls_init_label,
3038 .mpo_sysvmsq_check_msgrcv = mls_sysvmsq_check_msgrcv,
3039 .mpo_sysvmsq_check_msgrmid = mls_sysvmsq_check_msgrmid,
3040 .mpo_sysvmsq_check_msqget = mls_sysvmsq_check_msqget,
3041 .mpo_sysvmsq_check_msqsnd = mls_sysvmsq_check_msqsnd,
3042 .mpo_sysvmsq_check_msqrcv = mls_sysvmsq_check_msqrcv,
3043 .mpo_sysvmsq_check_msqctl = mls_sysvmsq_check_msqctl,
3044 .mpo_sysvmsq_cleanup = mls_sysvmsq_cleanup,
3045 .mpo_sysvmsq_destroy_label = mls_destroy_label,
3046 .mpo_sysvmsq_init_label = mls_init_label,
3047 .mpo_sysvmsq_create = mls_sysvmsq_create,
3049 .mpo_sysvsem_check_semctl = mls_sysvsem_check_semctl,
3050 .mpo_sysvsem_check_semget = mls_sysvsem_check_semget,
3051 .mpo_sysvsem_check_semop = mls_sysvsem_check_semop,
3052 .mpo_sysvsem_cleanup = mls_sysvsem_cleanup,
3053 .mpo_sysvsem_create = mls_sysvsem_create,
3054 .mpo_sysvsem_destroy_label = mls_destroy_label,
3055 .mpo_sysvsem_init_label = mls_init_label,
3057 .mpo_sysvshm_check_shmat = mls_sysvshm_check_shmat,
3058 .mpo_sysvshm_check_shmctl = mls_sysvshm_check_shmctl,
3059 .mpo_sysvshm_check_shmget = mls_sysvshm_check_shmget,
3060 .mpo_sysvshm_cleanup = mls_sysvshm_cleanup,
3061 .mpo_sysvshm_create = mls_sysvshm_create,
3062 .mpo_sysvshm_destroy_label = mls_destroy_label,
3063 .mpo_sysvshm_init_label = mls_init_label,
3066 .mpo_system_check_acct = mls_system_check_acct,
3067 .mpo_system_check_auditctl = mls_system_check_auditctl,
3068 .mpo_system_check_swapon = mls_system_check_swapon,
3070 .mpo_vnode_associate_extattr = mls_vnode_associate_extattr,
3071 .mpo_vnode_associate_singlelabel = mls_vnode_associate_singlelabel,
3072 .mpo_vnode_check_access = mls_vnode_check_open,
3073 .mpo_vnode_check_chdir = mls_vnode_check_chdir,
3074 .mpo_vnode_check_chroot = mls_vnode_check_chroot,
3075 .mpo_vnode_check_create = mls_vnode_check_create,
3076 .mpo_vnode_check_deleteacl = mls_vnode_check_deleteacl,
3077 .mpo_vnode_check_deleteextattr = mls_vnode_check_deleteextattr,
3078 .mpo_vnode_check_exec = mls_vnode_check_exec,
3079 .mpo_vnode_check_getacl = mls_vnode_check_getacl,
3080 .mpo_vnode_check_getextattr = mls_vnode_check_getextattr,
3081 .mpo_vnode_check_link = mls_vnode_check_link,
3082 .mpo_vnode_check_listextattr = mls_vnode_check_listextattr,
3083 .mpo_vnode_check_lookup = mls_vnode_check_lookup,
3084 .mpo_vnode_check_mmap = mls_vnode_check_mmap,
3085 .mpo_vnode_check_open = mls_vnode_check_open,
3086 .mpo_vnode_check_poll = mls_vnode_check_poll,
3087 .mpo_vnode_check_read = mls_vnode_check_read,
3088 .mpo_vnode_check_readdir = mls_vnode_check_readdir,
3089 .mpo_vnode_check_readlink = mls_vnode_check_readlink,
3090 .mpo_vnode_check_relabel = mls_vnode_check_relabel,
3091 .mpo_vnode_check_rename_from = mls_vnode_check_rename_from,
3092 .mpo_vnode_check_rename_to = mls_vnode_check_rename_to,
3093 .mpo_vnode_check_revoke = mls_vnode_check_revoke,
3094 .mpo_vnode_check_setacl = mls_vnode_check_setacl,
3095 .mpo_vnode_check_setextattr = mls_vnode_check_setextattr,
3096 .mpo_vnode_check_setflags = mls_vnode_check_setflags,
3097 .mpo_vnode_check_setmode = mls_vnode_check_setmode,
3098 .mpo_vnode_check_setowner = mls_vnode_check_setowner,
3099 .mpo_vnode_check_setutimes = mls_vnode_check_setutimes,
3100 .mpo_vnode_check_stat = mls_vnode_check_stat,
3101 .mpo_vnode_check_unlink = mls_vnode_check_unlink,
3102 .mpo_vnode_check_write = mls_vnode_check_write,
3103 .mpo_vnode_copy_label = mls_copy_label,
3104 .mpo_vnode_create_extattr = mls_vnode_create_extattr,
3105 .mpo_vnode_destroy_label = mls_destroy_label,
3106 .mpo_vnode_externalize_label = mls_externalize_label,
3107 .mpo_vnode_init_label = mls_init_label,
3108 .mpo_vnode_internalize_label = mls_internalize_label,
3109 .mpo_vnode_relabel = mls_vnode_relabel,
3110 .mpo_vnode_setlabel_extattr = mls_vnode_setlabel_extattr,
3113 #define MLS_OBJECTS (MPC_OBJECT_CRED | \
3114 /* MPC_OBJECT_PROC | */ \
3115 MPC_OBJECT_VNODE | \
3116 MPC_OBJECT_INPCB | \
3117 MPC_OBJECT_SOCKET | \
3118 MPC_OBJECT_DEVFS | \
3121 MPC_OBJECT_IFNET | \
3122 MPC_OBJECT_BPFDESC | \
3124 MPC_OBJECT_MOUNT | \
3125 MPC_OBJECT_POSIXSEM | \
3126 /* MPC_OBJECT_POSIXSHM | */ \
3127 MPC_OBJECT_SYSVMSG | \
3128 MPC_OBJECT_SYSVMSQ | \
3129 MPC_OBJECT_SYSVSEM | \
3130 MPC_OBJECT_SYSVSHM | \
3131 MPC_OBJECT_SYNCACHE)
3133 MAC_POLICY_SET(&mls_ops, mac_mls, "TrustedBSD MAC/MLS",
3134 MPC_LOADTIME_FLAG_NOTLATE, &mls_slot, MLS_OBJECTS);