ugidfw_vnode.c revision 119202
1/*- 2 * Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson 3 * Copyright (c) 2001, 2002, 2003 Networks Associates Technology, Inc. 4 * All rights reserved. 5 * 6 * This software was developed by Robert Watson for the TrustedBSD Project. 7 * 8 * This software was developed for the FreeBSD Project in part by Network 9 * Associates Laboratories, the Security Research Division of Network 10 * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), 11 * as part of the DARPA CHATS research program. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * $FreeBSD: head/sys/security/mac_bsdextended/mac_bsdextended.c 119202 2003-08-21 14:34:54Z rwatson $ 35 */ 36/* 37 * Developed by the TrustedBSD Project. 38 * "BSD Extended" MAC policy, allowing the administrator to impose 39 * mandatory rules regarding users and some system objects. 40 * 41 * XXX: Much locking support required here. 42 */ 43 44#include <sys/types.h> 45#include <sys/param.h> 46#include <sys/acl.h> 47#include <sys/conf.h> 48#include <sys/kernel.h> 49#include <sys/mac.h> 50#include <sys/malloc.h> 51#include <sys/mount.h> 52#include <sys/proc.h> 53#include <sys/systm.h> 54#include <sys/sysproto.h> 55#include <sys/sysent.h> 56#include <sys/vnode.h> 57#include <sys/file.h> 58#include <sys/socket.h> 59#include <sys/socketvar.h> 60#include <sys/sysctl.h> 61 62#include <net/bpfdesc.h> 63#include <net/if.h> 64#include <net/if_types.h> 65#include <net/if_var.h> 66 67#include <vm/vm.h> 68 69#include <sys/mac_policy.h> 70 71#include <security/mac_bsdextended/mac_bsdextended.h> 72 73SYSCTL_DECL(_security_mac); 74 75SYSCTL_NODE(_security_mac, OID_AUTO, bsdextended, CTLFLAG_RW, 0, 76 "TrustedBSD extended BSD MAC policy controls"); 77 78static int mac_bsdextended_enabled = 1; 79SYSCTL_INT(_security_mac_bsdextended, OID_AUTO, enabled, CTLFLAG_RW, 80 &mac_bsdextended_enabled, 0, "Enforce extended BSD policy"); 81TUNABLE_INT("security.mac.bsdextended.enabled", &mac_bsdextended_enabled); 82 83MALLOC_DEFINE(M_MACBSDEXTENDED, "mac_bsdextended", "BSD Extended MAC rule"); 84 85#define MAC_BSDEXTENDED_MAXRULES 250 86static struct mac_bsdextended_rule *rules[MAC_BSDEXTENDED_MAXRULES]; 87static int rule_count = 0; 88static int rule_slots = 0; 89 90SYSCTL_INT(_security_mac_bsdextended, OID_AUTO, rule_count, CTLFLAG_RD, 91 &rule_count, 0, "Number of defined rules\n"); 92SYSCTL_INT(_security_mac_bsdextended, OID_AUTO, rule_slots, CTLFLAG_RD, 93 &rule_slots, 0, "Number of used rule slots\n"); 94 95static int mac_bsdextended_debugging; 96SYSCTL_INT(_security_mac_bsdextended, OID_AUTO, debugging, CTLFLAG_RW, 97 &mac_bsdextended_debugging, 0, "Enable debugging on failure"); 98 99static int 100mac_bsdextended_rule_valid(struct mac_bsdextended_rule *rule) 101{ 102 103 if ((rule->mbr_subject.mbi_flags | MBI_BITS) != MBI_BITS) 104 return (EINVAL); 105 106 if ((rule->mbr_object.mbi_flags | MBI_BITS) != MBI_BITS) 107 return (EINVAL); 108 109 if ((rule->mbr_mode | VALLPERM) != VALLPERM) 110 return (EINVAL); 111 112 return (0); 113} 114 115static int 116sysctl_rule(SYSCTL_HANDLER_ARGS) 117{ 118 struct mac_bsdextended_rule temprule, *ruleptr; 119 u_int namelen; 120 int error, index, *name; 121 122 name = (int *)arg1; 123 namelen = arg2; 124 125 /* printf("bsdextended sysctl handler (namelen %d)\n", namelen); */ 126 127 if (namelen != 1) 128 return (EINVAL); 129 130 index = name[0]; 131 if (index < 0 || index > rule_slots + 1) 132 return (ENOENT); 133 if (rule_slots >= MAC_BSDEXTENDED_MAXRULES) 134 return (ENOENT); 135 136 if (req->oldptr) { 137 if (rules[index] == NULL) 138 return (ENOENT); 139 140 error = SYSCTL_OUT(req, rules[index], sizeof(*rules[index])); 141 if (error) 142 return (error); 143 } 144 145 if (req->newptr) { 146 if (req->newlen == 0) { 147 /* printf("deletion\n"); */ 148 ruleptr = rules[index]; 149 if (ruleptr == NULL) 150 return (ENOENT); 151 rule_count--; 152 rules[index] = NULL; 153 FREE(ruleptr, M_MACBSDEXTENDED); 154 return(0); 155 } 156 error = SYSCTL_IN(req, &temprule, sizeof(temprule)); 157 if (error) 158 return (error); 159 160 error = mac_bsdextended_rule_valid(&temprule); 161 if (error) 162 return (error); 163 164 if (rules[index] == NULL) { 165 /* printf("addition\n"); */ 166 MALLOC(ruleptr, struct mac_bsdextended_rule *, 167 sizeof(*ruleptr), M_MACBSDEXTENDED, M_WAITOK | 168 M_ZERO); 169 *ruleptr = temprule; 170 rules[index] = ruleptr; 171 if (index+1 > rule_slots) 172 rule_slots = index+1; 173 rule_count++; 174 } else { 175 /* printf("replacement\n"); */ 176 *rules[index] = temprule; 177 } 178 } 179 180 return (0); 181} 182 183SYSCTL_NODE(_security_mac_bsdextended, OID_AUTO, rules, 184 CTLFLAG_RW, sysctl_rule, "BSD extended MAC rules"); 185 186static void 187mac_bsdextended_init(struct mac_policy_conf *mpc) 188{ 189 190 /* Initialize ruleset lock. */ 191 /* Register dynamic sysctl's for rules. */ 192} 193 194static void 195mac_bsdextended_destroy(struct mac_policy_conf *mpc) 196{ 197 198 /* Tear down sysctls. */ 199 /* Destroy ruleset lock. */ 200} 201 202static int 203mac_bsdextended_rulecheck(struct mac_bsdextended_rule *rule, 204 struct ucred *cred, uid_t object_uid, gid_t object_gid, int acc_mode) 205{ 206 int match; 207 208 /* 209 * Is there a subject match? 210 */ 211 if (rule->mbr_subject.mbi_flags & MBI_UID_DEFINED) { 212 match = (rule->mbr_subject.mbi_uid == cred->cr_uid || 213 rule->mbr_subject.mbi_uid == cred->cr_ruid || 214 rule->mbr_subject.mbi_uid == cred->cr_svuid); 215 216 if (rule->mbr_subject.mbi_flags & MBI_NEGATED) 217 match = !match; 218 219 if (!match) 220 return (0); 221 } 222 223 if (rule->mbr_subject.mbi_flags & MBI_GID_DEFINED) { 224 match = (groupmember(rule->mbr_subject.mbi_gid, cred) || 225 rule->mbr_subject.mbi_gid == cred->cr_rgid || 226 rule->mbr_subject.mbi_gid == cred->cr_svgid); 227 228 if (rule->mbr_subject.mbi_flags & MBI_NEGATED) 229 match = !match; 230 231 if (!match) 232 return (0); 233 } 234 235 /* 236 * Is there an object match? 237 */ 238 if (rule->mbr_object.mbi_flags & MBI_UID_DEFINED) { 239 match = (rule->mbr_object.mbi_uid == object_uid); 240 241 if (rule->mbr_object.mbi_flags & MBI_NEGATED) 242 match = !match; 243 244 if (!match) 245 return (0); 246 } 247 248 if (rule->mbr_object.mbi_flags & MBI_GID_DEFINED) { 249 match = (rule->mbr_object.mbi_gid == object_gid); 250 251 if (rule->mbr_object.mbi_flags & MBI_NEGATED) 252 match = !match; 253 254 if (!match) 255 return (0); 256 } 257 258 /* 259 * Is the access permitted? 260 */ 261 if ((rule->mbr_mode & acc_mode) != acc_mode) { 262 if (mac_bsdextended_debugging) 263 printf("mac_bsdextended: %d:%d request %d on %d:%d" 264 " fails\n", cred->cr_ruid, cred->cr_rgid, 265 acc_mode, object_uid, object_gid); 266 return (EACCES); 267 } 268 269 return (0); 270} 271 272static int 273mac_bsdextended_check(struct ucred *cred, uid_t object_uid, gid_t object_gid, 274 int acc_mode) 275{ 276 int error, i; 277 278 for (i = 0; i < rule_slots; i++) { 279 if (rules[i] == NULL) 280 continue; 281 282 /* 283 * Since we don't separately handle append, map append to 284 * write. 285 */ 286 if (acc_mode & VAPPEND) { 287 acc_mode &= ~VAPPEND; 288 acc_mode |= VWRITE; 289 } 290 291 error = mac_bsdextended_rulecheck(rules[i], cred, object_uid, 292 object_gid, acc_mode); 293 if (error) 294 return (error); 295 } 296 297 return (0); 298} 299 300static int 301mac_bsdextended_check_system_swapon(struct ucred *cred, struct vnode *vp, 302 struct label *label) 303{ 304 struct vattr vap; 305 int error; 306 307 if (!mac_bsdextended_enabled) 308 return (0); 309 310 error = VOP_GETATTR(vp, &vap, cred, curthread); 311 if (error) 312 return (error); 313 return (mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VWRITE)); 314} 315 316static int 317mac_bsdextended_check_vnode_access(struct ucred *cred, struct vnode *vp, 318 struct label *label, int acc_mode) 319{ 320 struct vattr vap; 321 int error; 322 323 if (!mac_bsdextended_enabled) 324 return (0); 325 326 error = VOP_GETATTR(vp, &vap, cred, curthread); 327 if (error) 328 return (error); 329 return (mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, acc_mode)); 330} 331 332static int 333mac_bsdextended_check_vnode_chdir(struct ucred *cred, struct vnode *dvp, 334 struct label *dlabel) 335{ 336 struct vattr vap; 337 int error; 338 339 if (!mac_bsdextended_enabled) 340 return (0); 341 342 error = VOP_GETATTR(dvp, &vap, cred, curthread); 343 if (error) 344 return (error); 345 return (mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VEXEC)); 346} 347 348static int 349mac_bsdextended_check_vnode_chroot(struct ucred *cred, struct vnode *dvp, 350 struct label *dlabel) 351{ 352 struct vattr vap; 353 int error; 354 355 if (!mac_bsdextended_enabled) 356 return (0); 357 358 error = VOP_GETATTR(dvp, &vap, cred, curthread); 359 if (error) 360 return (error); 361 return (mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VEXEC)); 362} 363 364static int 365mac_bsdextended_check_create_vnode(struct ucred *cred, struct vnode *dvp, 366 struct label *dlabel, struct componentname *cnp, struct vattr *vap) 367{ 368 struct vattr dvap; 369 int error; 370 371 if (!mac_bsdextended_enabled) 372 return (0); 373 374 error = VOP_GETATTR(dvp, &dvap, cred, curthread); 375 if (error) 376 return (error); 377 return (mac_bsdextended_check(cred, dvap.va_uid, dvap.va_gid, VWRITE)); 378} 379 380static int 381mac_bsdextended_check_vnode_delete(struct ucred *cred, struct vnode *dvp, 382 struct label *dlabel, struct vnode *vp, struct label *label, 383 struct componentname *cnp) 384{ 385 struct vattr vap; 386 int error; 387 388 if (!mac_bsdextended_enabled) 389 return (0); 390 391 error = VOP_GETATTR(dvp, &vap, cred, curthread); 392 if (error) 393 return (error); 394 error = mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VWRITE); 395 if (error) 396 return (error); 397 398 error = VOP_GETATTR(vp, &vap, cred, curthread); 399 if (error) 400 return (error); 401 return (mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VWRITE)); 402} 403 404static int 405mac_bsdextended_check_vnode_deleteacl(struct ucred *cred, struct vnode *vp, 406 struct label *label, acl_type_t type) 407{ 408 struct vattr vap; 409 int error; 410 411 if (!mac_bsdextended_enabled) 412 return (0); 413 414 error = VOP_GETATTR(vp, &vap, cred, curthread); 415 if (error) 416 return (error); 417 return (mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VADMIN)); 418} 419 420static int 421mac_bsdextended_check_vnode_deleteextattr(struct ucred *cred, struct vnode *vp, 422 struct label *label, int attrnamespace, const char *name) 423{ 424 struct vattr vap; 425 int error; 426 427 if (!mac_bsdextended_enabled) 428 return (0); 429 430 error = VOP_GETATTR(vp, &vap, cred, curthread); 431 if (error) 432 return (error); 433 return (mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VWRITE)); 434} 435 436static int 437mac_bsdextended_check_vnode_exec(struct ucred *cred, struct vnode *vp, 438 struct label *label, struct image_params *imgp, 439 struct label *execlabel) 440{ 441 struct vattr vap; 442 int error; 443 444 if (!mac_bsdextended_enabled) 445 return (0); 446 447 error = VOP_GETATTR(vp, &vap, cred, curthread); 448 if (error) 449 return (error); 450 return (mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, 451 VREAD|VEXEC)); 452} 453 454static int 455mac_bsdextended_check_vnode_getacl(struct ucred *cred, struct vnode *vp, 456 struct label *label, acl_type_t type) 457{ 458 struct vattr vap; 459 int error; 460 461 if (!mac_bsdextended_enabled) 462 return (0); 463 464 error = VOP_GETATTR(vp, &vap, cred, curthread); 465 if (error) 466 return (error); 467 return (mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VSTAT)); 468} 469 470static int 471mac_bsdextended_check_vnode_getextattr(struct ucred *cred, struct vnode *vp, 472 struct label *label, int attrnamespace, const char *name, struct uio *uio) 473{ 474 struct vattr vap; 475 int error; 476 477 if (!mac_bsdextended_enabled) 478 return (0); 479 480 error = VOP_GETATTR(vp, &vap, cred, curthread); 481 if (error) 482 return (error); 483 return (mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VREAD)); 484} 485 486static int 487mac_bsdextended_check_vnode_link(struct ucred *cred, struct vnode *dvp, 488 struct label *dlabel, struct vnode *vp, struct label *label, 489 struct componentname *cnp) 490{ 491 struct vattr vap; 492 int error; 493 494 if (!mac_bsdextended_enabled) 495 return (0); 496 497 error = VOP_GETATTR(dvp, &vap, cred, curthread); 498 if (error) 499 return (error); 500 error = mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VWRITE); 501 if (error) 502 return (error); 503 504 error = VOP_GETATTR(vp, &vap, cred, curthread); 505 if (error) 506 return (error); 507 error = mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VWRITE); 508 if (error) 509 return (error); 510 return (0); 511} 512 513static int 514mac_bsdextended_check_vnode_listextattr(struct ucred *cred, struct vnode *vp, 515 struct label *label, int attrnamespace) 516{ 517 struct vattr vap; 518 int error; 519 520 if (!mac_bsdextended_enabled) 521 return (0); 522 523 error = VOP_GETATTR(vp, &vap, cred, curthread); 524 if (error) 525 return (error); 526 return (mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VREAD)); 527} 528 529static int 530mac_bsdextended_check_vnode_lookup(struct ucred *cred, struct vnode *dvp, 531 struct label *dlabel, struct componentname *cnp) 532{ 533 struct vattr vap; 534 int error; 535 536 if (!mac_bsdextended_enabled) 537 return (0); 538 539 error = VOP_GETATTR(dvp, &vap, cred, curthread); 540 if (error) 541 return (error); 542 return (mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VEXEC)); 543} 544 545static int 546mac_bsdextended_check_vnode_open(struct ucred *cred, struct vnode *vp, 547 struct label *filelabel, int acc_mode) 548{ 549 struct vattr vap; 550 int error; 551 552 if (!mac_bsdextended_enabled) 553 return (0); 554 555 error = VOP_GETATTR(vp, &vap, cred, curthread); 556 if (error) 557 return (error); 558 return (mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, acc_mode)); 559} 560 561static int 562mac_bsdextended_check_vnode_readdir(struct ucred *cred, struct vnode *dvp, 563 struct label *dlabel) 564{ 565 struct vattr vap; 566 int error; 567 568 if (!mac_bsdextended_enabled) 569 return (0); 570 571 error = VOP_GETATTR(dvp, &vap, cred, curthread); 572 if (error) 573 return (error); 574 return (mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VREAD)); 575} 576 577static int 578mac_bsdextended_check_vnode_readdlink(struct ucred *cred, struct vnode *vp, 579 struct label *label) 580{ 581 struct vattr vap; 582 int error; 583 584 if (!mac_bsdextended_enabled) 585 return (0); 586 587 error = VOP_GETATTR(vp, &vap, cred, curthread); 588 if (error) 589 return (error); 590 return (mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VREAD)); 591} 592 593static int 594mac_bsdextended_check_vnode_rename_from(struct ucred *cred, struct vnode *dvp, 595 struct label *dlabel, struct vnode *vp, struct label *label, 596 struct componentname *cnp) 597{ 598 struct vattr vap; 599 int error; 600 601 if (!mac_bsdextended_enabled) 602 return (0); 603 604 error = VOP_GETATTR(dvp, &vap, cred, curthread); 605 if (error) 606 return (error); 607 error = mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VWRITE); 608 if (error) 609 return (error); 610 error = VOP_GETATTR(vp, &vap, cred, curthread); 611 if (error) 612 return (error); 613 error = mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VWRITE); 614 615 return (error); 616} 617 618static int 619mac_bsdextended_check_vnode_rename_to(struct ucred *cred, struct vnode *dvp, 620 struct label *dlabel, struct vnode *vp, struct label *label, int samedir, 621 struct componentname *cnp) 622{ 623 struct vattr vap; 624 int error; 625 626 if (!mac_bsdextended_enabled) 627 return (0); 628 629 error = VOP_GETATTR(dvp, &vap, cred, curthread); 630 if (error) 631 return (error); 632 error = mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VWRITE); 633 if (error) 634 return (error); 635 636 if (vp != NULL) { 637 error = VOP_GETATTR(vp, &vap, cred, curthread); 638 if (error) 639 return (error); 640 error = mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, 641 VWRITE); 642 } 643 644 return (error); 645} 646 647static int 648mac_bsdextended_check_vnode_revoke(struct ucred *cred, struct vnode *vp, 649 struct label *label) 650{ 651 struct vattr vap; 652 int error; 653 654 if (!mac_bsdextended_enabled) 655 return (0); 656 657 error = VOP_GETATTR(vp, &vap, cred, curthread); 658 if (error) 659 return (error); 660 return (mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VADMIN)); 661} 662 663static int 664mac_bsdextended_check_setacl_vnode(struct ucred *cred, struct vnode *vp, 665 struct label *label, acl_type_t type, struct acl *acl) 666{ 667 struct vattr vap; 668 int error; 669 670 if (!mac_bsdextended_enabled) 671 return (0); 672 673 error = VOP_GETATTR(vp, &vap, cred, curthread); 674 if (error) 675 return (error); 676 return (mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VADMIN)); 677} 678 679static int 680mac_bsdextended_check_vnode_setextattr(struct ucred *cred, struct vnode *vp, 681 struct label *label, int attrnamespace, const char *name, struct uio *uio) 682{ 683 struct vattr vap; 684 int error; 685 686 if (!mac_bsdextended_enabled) 687 return (0); 688 689 error = VOP_GETATTR(vp, &vap, cred, curthread); 690 if (error) 691 return (error); 692 return (mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VWRITE)); 693} 694 695static int 696mac_bsdextended_check_vnode_setflags(struct ucred *cred, struct vnode *vp, 697 struct label *label, u_long flags) 698{ 699 struct vattr vap; 700 int error; 701 702 if (!mac_bsdextended_enabled) 703 return (0); 704 705 error = VOP_GETATTR(vp, &vap, cred, curthread); 706 if (error) 707 return (error); 708 return (mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VADMIN)); 709} 710 711static int 712mac_bsdextended_check_vnode_setmode(struct ucred *cred, struct vnode *vp, 713 struct label *label, mode_t mode) 714{ 715 struct vattr vap; 716 int error; 717 718 if (!mac_bsdextended_enabled) 719 return (0); 720 721 error = VOP_GETATTR(vp, &vap, cred, curthread); 722 if (error) 723 return (error); 724 return (mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VADMIN)); 725} 726 727static int 728mac_bsdextended_check_vnode_setowner(struct ucred *cred, struct vnode *vp, 729 struct label *label, uid_t uid, gid_t gid) 730{ 731 struct vattr vap; 732 int error; 733 734 if (!mac_bsdextended_enabled) 735 return (0); 736 737 error = VOP_GETATTR(vp, &vap, cred, curthread); 738 if (error) 739 return (error); 740 return (mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VADMIN)); 741} 742 743static int 744mac_bsdextended_check_vnode_setutimes(struct ucred *cred, struct vnode *vp, 745 struct label *label, struct timespec atime, struct timespec utime) 746{ 747 struct vattr vap; 748 int error; 749 750 if (!mac_bsdextended_enabled) 751 return (0); 752 753 error = VOP_GETATTR(vp, &vap, cred, curthread); 754 if (error) 755 return (error); 756 return (mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VADMIN)); 757} 758 759static int 760mac_bsdextended_check_vnode_stat(struct ucred *active_cred, 761 struct ucred *file_cred, struct vnode *vp, struct label *label) 762{ 763 struct vattr vap; 764 int error; 765 766 if (!mac_bsdextended_enabled) 767 return (0); 768 769 error = VOP_GETATTR(vp, &vap, active_cred, curthread); 770 if (error) 771 return (error); 772 return (mac_bsdextended_check(active_cred, vap.va_uid, vap.va_gid, 773 VSTAT)); 774} 775 776static struct mac_policy_ops mac_bsdextended_ops = 777{ 778 .mpo_destroy = mac_bsdextended_destroy, 779 .mpo_init = mac_bsdextended_init, 780 .mpo_check_system_swapon = mac_bsdextended_check_system_swapon, 781 .mpo_check_vnode_access = mac_bsdextended_check_vnode_access, 782 .mpo_check_vnode_chdir = mac_bsdextended_check_vnode_chdir, 783 .mpo_check_vnode_chroot = mac_bsdextended_check_vnode_chroot, 784 .mpo_check_vnode_create = mac_bsdextended_check_create_vnode, 785 .mpo_check_vnode_delete = mac_bsdextended_check_vnode_delete, 786 .mpo_check_vnode_deleteacl = mac_bsdextended_check_vnode_deleteacl, 787 .mpo_check_vnode_deleteextattr = mac_bsdextended_check_vnode_deleteextattr, 788 .mpo_check_vnode_exec = mac_bsdextended_check_vnode_exec, 789 .mpo_check_vnode_getacl = mac_bsdextended_check_vnode_getacl, 790 .mpo_check_vnode_getextattr = mac_bsdextended_check_vnode_getextattr, 791 .mpo_check_vnode_link = mac_bsdextended_check_vnode_link, 792 .mpo_check_vnode_listextattr = mac_bsdextended_check_vnode_listextattr, 793 .mpo_check_vnode_lookup = mac_bsdextended_check_vnode_lookup, 794 .mpo_check_vnode_open = mac_bsdextended_check_vnode_open, 795 .mpo_check_vnode_readdir = mac_bsdextended_check_vnode_readdir, 796 .mpo_check_vnode_readlink = mac_bsdextended_check_vnode_readdlink, 797 .mpo_check_vnode_rename_from = mac_bsdextended_check_vnode_rename_from, 798 .mpo_check_vnode_rename_to = mac_bsdextended_check_vnode_rename_to, 799 .mpo_check_vnode_revoke = mac_bsdextended_check_vnode_revoke, 800 .mpo_check_vnode_setacl = mac_bsdextended_check_setacl_vnode, 801 .mpo_check_vnode_setextattr = mac_bsdextended_check_vnode_setextattr, 802 .mpo_check_vnode_setflags = mac_bsdextended_check_vnode_setflags, 803 .mpo_check_vnode_setmode = mac_bsdextended_check_vnode_setmode, 804 .mpo_check_vnode_setowner = mac_bsdextended_check_vnode_setowner, 805 .mpo_check_vnode_setutimes = mac_bsdextended_check_vnode_setutimes, 806 .mpo_check_vnode_stat = mac_bsdextended_check_vnode_stat, 807}; 808 809MAC_POLICY_SET(&mac_bsdextended_ops, mac_bsdextended, 810 "TrustedBSD MAC/BSD Extended", MPC_LOADTIME_FLAG_UNLOADOK, NULL); 811