1 /*- 2 * Copyright (c) 1999-2002 Robert N. M. Watson 3 * Copyright (c) 2001-2005 McAfee, 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 McAfee 9 * Research, the Security Research Division of McAfee, Inc. under 10 * DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA 11 * 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 * $FreeBSD$ 35 */ 36 37 /* 38 * Developed by the TrustedBSD Project. 39 * 40 * Stub module that implements a NOOP for most (if not all) MAC Framework 41 * policy entry points. 42 */ 43 44 #include <sys/types.h> 45 #include <sys/param.h> 46 #include <sys/acl.h> 47 #include <sys/conf.h> 48 #include <sys/extattr.h> 49 #include <sys/kernel.h> 50 #include <sys/mac.h> 51 #include <sys/mount.h> 52 #include <sys/proc.h> 53 #include <sys/systm.h> 54 #include <sys/sysproto.h> 55 #include <sys/sysent.h> 56 #include <sys/vnode.h> 57 #include <sys/file.h> 58 #include <sys/socket.h> 59 #include <sys/socketvar.h> 60 #include <sys/pipe.h> 61 #include <sys/sysctl.h> 62 #include <sys/msg.h> 63 #include <sys/sem.h> 64 #include <sys/shm.h> 65 66 #include <fs/devfs/devfs.h> 67 68 #include <net/bpfdesc.h> 69 #include <net/if.h> 70 #include <net/if_types.h> 71 #include <net/if_var.h> 72 73 #include <netinet/in.h> 74 #include <netinet/in_pcb.h> 75 #include <netinet/ip_var.h> 76 77 #include <vm/vm.h> 78 79 #include <sys/mac_policy.h> 80 81 SYSCTL_DECL(_security_mac); 82 83 SYSCTL_NODE(_security_mac, OID_AUTO, stub, CTLFLAG_RW, 0, 84 "TrustedBSD mac_stub policy controls"); 85 86 static int stub_enabled = 1; 87 SYSCTL_INT(_security_mac_stub, OID_AUTO, enabled, CTLFLAG_RW, 88 &stub_enabled, 0, "Enforce mac_stub policy"); 89 90 /* 91 * Policy module operations. 92 */ 93 static void 94 stub_destroy(struct mac_policy_conf *conf) 95 { 96 97 } 98 99 static void 100 stub_init(struct mac_policy_conf *conf) 101 { 102 103 } 104 105 static int 106 stub_syscall(struct thread *td, int call, void *arg) 107 { 108 109 return (0); 110 } 111 112 /* 113 * Label operations. 114 */ 115 static void 116 stub_init_label(struct label *label) 117 { 118 119 } 120 121 static int 122 stub_init_label_waitcheck(struct label *label, int flag) 123 { 124 125 return (0); 126 } 127 128 static void 129 stub_destroy_label(struct label *label) 130 { 131 132 } 133 134 static void 135 stub_copy_label(struct label *src, struct label *dest) 136 { 137 138 } 139 140 static int 141 stub_externalize_label(struct label *label, char *element_name, 142 struct sbuf *sb, int *claimed) 143 { 144 145 return (0); 146 } 147 148 static int 149 stub_internalize_label(struct label *label, char *element_name, 150 char *element_data, int *claimed) 151 { 152 153 return (0); 154 } 155 156 /* 157 * Labeling event operations: file system objects, and things that look 158 * a lot like file system objects. 159 */ 160 static void 161 stub_associate_vnode_devfs(struct mount *mp, struct label *fslabel, 162 struct devfs_dirent *de, struct label *delabel, struct vnode *vp, 163 struct label *vlabel) 164 { 165 166 } 167 168 static int 169 stub_associate_vnode_extattr(struct mount *mp, struct label *fslabel, 170 struct vnode *vp, struct label *vlabel) 171 { 172 173 return (0); 174 } 175 176 static void 177 stub_associate_vnode_singlelabel(struct mount *mp, 178 struct label *fslabel, struct vnode *vp, struct label *vlabel) 179 { 180 181 } 182 183 static void 184 stub_create_devfs_device(struct mount *mp, struct cdev *dev, 185 struct devfs_dirent *devfs_dirent, struct label *label) 186 { 187 188 } 189 190 static void 191 stub_create_devfs_directory(struct mount *mp, char *dirname, 192 int dirnamelen, struct devfs_dirent *devfs_dirent, struct label *label) 193 { 194 195 } 196 197 static void 198 stub_create_devfs_symlink(struct ucred *cred, struct mount *mp, 199 struct devfs_dirent *dd, struct label *ddlabel, struct devfs_dirent *de, 200 struct label *delabel) 201 { 202 203 } 204 205 static int 206 stub_create_vnode_extattr(struct ucred *cred, struct mount *mp, 207 struct label *fslabel, struct vnode *dvp, struct label *dlabel, 208 struct vnode *vp, struct label *vlabel, struct componentname *cnp) 209 { 210 211 return (0); 212 } 213 214 static void 215 stub_create_mount(struct ucred *cred, struct mount *mp, 216 struct label *mntlabel, struct label *fslabel) 217 { 218 219 } 220 221 static void 222 stub_create_root_mount(struct ucred *cred, struct mount *mp, 223 struct label *mntlabel, struct label *fslabel) 224 { 225 226 } 227 228 static void 229 stub_relabel_vnode(struct ucred *cred, struct vnode *vp, 230 struct label *vnodelabel, struct label *label) 231 { 232 233 } 234 235 static int 236 stub_setlabel_vnode_extattr(struct ucred *cred, struct vnode *vp, 237 struct label *vlabel, struct label *intlabel) 238 { 239 240 return (0); 241 } 242 243 static void 244 stub_update_devfsdirent(struct mount *mp, 245 struct devfs_dirent *devfs_dirent, struct label *direntlabel, 246 struct vnode *vp, struct label *vnodelabel) 247 { 248 249 } 250 251 /* 252 * Labeling event operations: IPC object. 253 */ 254 static void 255 stub_create_mbuf_from_socket(struct socket *so, struct label *socketlabel, 256 struct mbuf *m, struct label *mbuflabel) 257 { 258 259 } 260 261 static void 262 stub_create_socket(struct ucred *cred, struct socket *socket, 263 struct label *socketlabel) 264 { 265 266 } 267 268 static void 269 stub_create_pipe(struct ucred *cred, struct pipepair *pp, 270 struct label *pipelabel) 271 { 272 273 } 274 275 static void 276 stub_create_socket_from_socket(struct socket *oldsocket, 277 struct label *oldsocketlabel, struct socket *newsocket, 278 struct label *newsocketlabel) 279 { 280 281 } 282 283 static void 284 stub_relabel_socket(struct ucred *cred, struct socket *socket, 285 struct label *socketlabel, struct label *newlabel) 286 { 287 288 } 289 290 static void 291 stub_relabel_pipe(struct ucred *cred, struct pipepair *pp, 292 struct label *pipelabel, struct label *newlabel) 293 { 294 295 } 296 297 static void 298 stub_set_socket_peer_from_mbuf(struct mbuf *mbuf, struct label *mbuflabel, 299 struct socket *socket, struct label *socketpeerlabel) 300 { 301 302 } 303 304 static void 305 stub_set_socket_peer_from_socket(struct socket *oldsocket, 306 struct label *oldsocketlabel, struct socket *newsocket, 307 struct label *newsocketpeerlabel) 308 { 309 310 } 311 312 /* 313 * Labeling event operations: network objects. 314 */ 315 static void 316 stub_create_bpfdesc(struct ucred *cred, struct bpf_d *bpf_d, 317 struct label *bpflabel) 318 { 319 320 } 321 322 static void 323 stub_create_datagram_from_ipq(struct ipq *ipq, struct label *ipqlabel, 324 struct mbuf *datagram, struct label *datagramlabel) 325 { 326 327 } 328 329 static void 330 stub_create_fragment(struct mbuf *datagram, struct label *datagramlabel, 331 struct mbuf *fragment, struct label *fragmentlabel) 332 { 333 334 } 335 336 static void 337 stub_create_ifnet(struct ifnet *ifnet, struct label *ifnetlabel) 338 { 339 340 } 341 342 static void 343 stub_create_inpcb_from_socket(struct socket *so, struct label *solabel, 344 struct inpcb *inp, struct label *inplabel) 345 { 346 347 } 348 349 static void 350 stub_create_sysv_msgmsg(struct ucred *cred, struct msqid_kernel *msqkptr, 351 struct label *msqlabel, struct msg *msgptr, struct label *msglabel) 352 { 353 354 } 355 356 static void 357 stub_create_sysv_msgqueue(struct ucred *cred, struct msqid_kernel *msqkptr, 358 struct label *msqlabel) 359 { 360 361 } 362 363 static void 364 stub_create_sysv_sema(struct ucred *cred, struct semid_kernel *semakptr, 365 struct label *semalabel) 366 { 367 368 } 369 370 static void 371 stub_create_sysv_shm(struct ucred *cred, struct shmid_kernel *shmsegptr, 372 struct label *shmalabel) 373 { 374 375 } 376 377 static void 378 stub_create_ipq(struct mbuf *fragment, struct label *fragmentlabel, 379 struct ipq *ipq, struct label *ipqlabel) 380 { 381 382 } 383 384 static void 385 stub_create_mbuf_from_inpcb(struct inpcb *inp, struct label *inplabel, 386 struct mbuf *m, struct label *mlabel) 387 { 388 389 } 390 391 static void 392 stub_create_mbuf_from_mbuf(struct mbuf *oldmbuf, 393 struct label *oldmbuflabel, struct mbuf *newmbuf, 394 struct label *newmbuflabel) 395 { 396 397 } 398 399 static void 400 stub_create_mbuf_linklayer(struct ifnet *ifnet, struct label *ifnetlabel, 401 struct mbuf *mbuf, struct label *mbuflabel) 402 { 403 404 } 405 406 static void 407 stub_create_mbuf_from_bpfdesc(struct bpf_d *bpf_d, struct label *bpflabel, 408 struct mbuf *mbuf, struct label *mbuflabel) 409 { 410 411 } 412 413 static void 414 stub_create_mbuf_from_ifnet(struct ifnet *ifnet, struct label *ifnetlabel, 415 struct mbuf *m, struct label *mbuflabel) 416 { 417 418 } 419 420 static void 421 stub_create_mbuf_multicast_encap(struct mbuf *oldmbuf, 422 struct label *oldmbuflabel, struct ifnet *ifnet, struct label *ifnetlabel, 423 struct mbuf *newmbuf, struct label *newmbuflabel) 424 { 425 426 } 427 428 static void 429 stub_create_mbuf_netlayer(struct mbuf *oldmbuf, 430 struct label *oldmbuflabel, struct mbuf *newmbuf, struct label *newmbuflabel) 431 { 432 433 } 434 435 static int 436 stub_fragment_match(struct mbuf *fragment, struct label *fragmentlabel, 437 struct ipq *ipq, struct label *ipqlabel) 438 { 439 440 return (1); 441 } 442 443 static void 444 stub_reflect_mbuf_icmp(struct mbuf *m, struct label *mlabel) 445 { 446 447 } 448 449 static void 450 stub_reflect_mbuf_tcp(struct mbuf *m, struct label *mlabel) 451 { 452 453 } 454 455 static void 456 stub_relabel_ifnet(struct ucred *cred, struct ifnet *ifnet, 457 struct label *ifnetlabel, struct label *newlabel) 458 { 459 460 } 461 462 static void 463 stub_update_ipq(struct mbuf *fragment, struct label *fragmentlabel, 464 struct ipq *ipq, struct label *ipqlabel) 465 { 466 467 } 468 469 static void 470 stub_inpcb_sosetlabel(struct socket *so, struct label *solabel, 471 struct inpcb *inp, struct label *inplabel) 472 { 473 474 } 475 476 /* 477 * Labeling event operations: processes. 478 */ 479 static void 480 stub_execve_transition(struct ucred *old, struct ucred *new, 481 struct vnode *vp, struct label *vnodelabel, 482 struct label *interpvnodelabel, struct image_params *imgp, 483 struct label *execlabel) 484 { 485 486 } 487 488 static int 489 stub_execve_will_transition(struct ucred *old, struct vnode *vp, 490 struct label *vnodelabel, struct label *interpvnodelabel, 491 struct image_params *imgp, struct label *execlabel) 492 { 493 494 return (0); 495 } 496 497 static void 498 stub_create_proc0(struct ucred *cred) 499 { 500 501 } 502 503 static void 504 stub_create_proc1(struct ucred *cred) 505 { 506 507 } 508 509 static void 510 stub_relabel_cred(struct ucred *cred, struct label *newlabel) 511 { 512 513 } 514 515 static void 516 stub_thread_userret(struct thread *td) 517 { 518 519 } 520 521 /* 522 * Label cleanup/flush operations 523 */ 524 static void 525 stub_cleanup_sysv_msgmsg(struct label *msglabel) 526 { 527 528 } 529 530 static void 531 stub_cleanup_sysv_msgqueue(struct label *msqlabel) 532 { 533 534 } 535 536 static void 537 stub_cleanup_sysv_sema(struct label *semalabel) 538 { 539 540 } 541 542 static void 543 stub_cleanup_sysv_shm(struct label *shmlabel) 544 { 545 546 } 547 548 /* 549 * Access control checks. 550 */ 551 static int 552 stub_check_bpfdesc_receive(struct bpf_d *bpf_d, struct label *bpflabel, 553 struct ifnet *ifnet, struct label *ifnet_label) 554 { 555 556 return (0); 557 } 558 559 static int 560 stub_check_cred_relabel(struct ucred *cred, struct label *newlabel) 561 { 562 563 return (0); 564 } 565 566 static int 567 stub_check_cred_visible(struct ucred *u1, struct ucred *u2) 568 { 569 570 return (0); 571 } 572 573 static int 574 stub_check_ifnet_relabel(struct ucred *cred, struct ifnet *ifnet, 575 struct label *ifnetlabel, struct label *newlabel) 576 { 577 578 return (0); 579 } 580 581 static int 582 stub_check_ifnet_transmit(struct ifnet *ifnet, struct label *ifnetlabel, 583 struct mbuf *m, struct label *mbuflabel) 584 { 585 586 return (0); 587 } 588 589 static int 590 stub_check_inpcb_deliver(struct inpcb *inp, struct label *inplabel, 591 struct mbuf *m, struct label *mlabel) 592 { 593 594 return (0); 595 } 596 597 static int 598 stub_check_sysv_msgmsq(struct ucred *cred, struct msg *msgptr, 599 struct label *msglabel, struct msqid_kernel *msqkptr, 600 struct label *msqklabel) 601 { 602 603 return (0); 604 } 605 606 static int 607 stub_check_sysv_msgrcv(struct ucred *cred, struct msg *msgptr, 608 struct label *msglabel) 609 { 610 611 return (0); 612 } 613 614 615 static int 616 stub_check_sysv_msgrmid(struct ucred *cred, struct msg *msgptr, 617 struct label *msglabel) 618 { 619 620 return (0); 621 } 622 623 624 static int 625 stub_check_sysv_msqget(struct ucred *cred, struct msqid_kernel *msqkptr, 626 struct label *msqklabel) 627 { 628 629 return (0); 630 } 631 632 633 static int 634 stub_check_sysv_msqsnd(struct ucred *cred, struct msqid_kernel *msqkptr, 635 struct label *msqklabel) 636 { 637 638 return (0); 639 } 640 641 static int 642 stub_check_sysv_msqrcv(struct ucred *cred, struct msqid_kernel *msqkptr, 643 struct label *msqklabel) 644 { 645 646 return (0); 647 } 648 649 650 static int 651 stub_check_sysv_msqctl(struct ucred *cred, struct msqid_kernel *msqkptr, 652 struct label *msqklabel, int cmd) 653 { 654 655 return (0); 656 } 657 658 659 static int 660 stub_check_sysv_semctl(struct ucred *cred, struct semid_kernel *semakptr, 661 struct label *semaklabel, int cmd) 662 { 663 664 return (0); 665 } 666 667 static int 668 stub_check_sysv_semget(struct ucred *cred, struct semid_kernel *semakptr, 669 struct label *semaklabel) 670 { 671 672 return (0); 673 } 674 675 676 static int 677 stub_check_sysv_semop(struct ucred *cred, struct semid_kernel *semakptr, 678 struct label *semaklabel, size_t accesstype) 679 { 680 681 return (0); 682 } 683 684 static int 685 stub_check_sysv_shmat(struct ucred *cred, struct shmid_kernel *shmsegptr, 686 struct label *shmseglabel, int shmflg) 687 { 688 689 return (0); 690 } 691 692 static int 693 stub_check_sysv_shmctl(struct ucred *cred, struct shmid_kernel *shmsegptr, 694 struct label *shmseglabel, int cmd) 695 { 696 697 return (0); 698 } 699 700 static int 701 stub_check_sysv_shmdt(struct ucred *cred, struct shmid_kernel *shmsegptr, 702 struct label *shmseglabel) 703 { 704 705 return (0); 706 } 707 708 709 static int 710 stub_check_sysv_shmget(struct ucred *cred, struct shmid_kernel *shmsegptr, 711 struct label *shmseglabel, int shmflg) 712 { 713 714 return (0); 715 } 716 717 static int 718 stub_check_kenv_dump(struct ucred *cred) 719 { 720 721 return (0); 722 } 723 724 static int 725 stub_check_kenv_get(struct ucred *cred, char *name) 726 { 727 728 return (0); 729 } 730 731 static int 732 stub_check_kenv_set(struct ucred *cred, char *name, char *value) 733 { 734 735 return (0); 736 } 737 738 static int 739 stub_check_kenv_unset(struct ucred *cred, char *name) 740 { 741 742 return (0); 743 } 744 745 static int 746 stub_check_kld_load(struct ucred *cred, struct vnode *vp, 747 struct label *vlabel) 748 { 749 750 return (0); 751 } 752 753 static int 754 stub_check_kld_stat(struct ucred *cred) 755 { 756 757 return (0); 758 } 759 760 static int 761 stub_check_kld_unload(struct ucred *cred) 762 { 763 764 return (0); 765 } 766 767 static int 768 stub_check_mount_stat(struct ucred *cred, struct mount *mp, 769 struct label *mntlabel) 770 { 771 772 return (0); 773 } 774 775 static int 776 stub_check_pipe_ioctl(struct ucred *cred, struct pipepair *pp, 777 struct label *pipelabel, unsigned long cmd, void /* caddr_t */ *data) 778 { 779 780 return (0); 781 } 782 783 static int 784 stub_check_pipe_poll(struct ucred *cred, struct pipepair *pp, 785 struct label *pipelabel) 786 { 787 788 return (0); 789 } 790 791 static int 792 stub_check_pipe_read(struct ucred *cred, struct pipepair *pp, 793 struct label *pipelabel) 794 { 795 796 return (0); 797 } 798 799 static int 800 stub_check_pipe_relabel(struct ucred *cred, struct pipepair *pp, 801 struct label *pipelabel, struct label *newlabel) 802 { 803 804 return (0); 805 } 806 807 static int 808 stub_check_pipe_stat(struct ucred *cred, struct pipepair *pp, 809 struct label *pipelabel) 810 { 811 812 return (0); 813 } 814 815 static int 816 stub_check_pipe_write(struct ucred *cred, struct pipepair *pp, 817 struct label *pipelabel) 818 { 819 820 return (0); 821 } 822 823 static int 824 stub_check_proc_debug(struct ucred *cred, struct proc *proc) 825 { 826 827 return (0); 828 } 829 830 static int 831 stub_check_proc_sched(struct ucred *cred, struct proc *proc) 832 { 833 834 return (0); 835 } 836 837 static int 838 stub_check_proc_signal(struct ucred *cred, struct proc *proc, int signum) 839 { 840 841 return (0); 842 } 843 844 static int 845 stub_check_proc_wait(struct ucred *cred, struct proc *proc) 846 { 847 848 return (0); 849 } 850 851 static int 852 stub_check_proc_setuid(struct ucred *cred, uid_t uid) 853 { 854 855 return (0); 856 } 857 858 static int 859 stub_check_proc_seteuid(struct ucred *cred, uid_t euid) 860 { 861 862 return (0); 863 } 864 865 static int 866 stub_check_proc_setgid(struct ucred *cred, gid_t gid) 867 { 868 869 return (0); 870 } 871 872 static int 873 stub_check_proc_setegid(struct ucred *cred, gid_t egid) 874 { 875 876 return (0); 877 } 878 879 static int 880 stub_check_proc_setgroups(struct ucred *cred, int ngroups, 881 gid_t *gidset) 882 { 883 884 return (0); 885 } 886 887 static int 888 stub_check_proc_setreuid(struct ucred *cred, uid_t ruid, uid_t euid) 889 { 890 891 return (0); 892 } 893 894 static int 895 stub_check_proc_setregid(struct ucred *cred, gid_t rgid, gid_t egid) 896 { 897 898 return (0); 899 } 900 901 static int 902 stub_check_proc_setresuid(struct ucred *cred, uid_t ruid, uid_t euid, 903 uid_t suid) 904 { 905 906 return (0); 907 } 908 909 static int 910 stub_check_proc_setresgid(struct ucred *cred, gid_t rgid, gid_t egid, 911 gid_t sgid) 912 { 913 914 return (0); 915 } 916 917 static int 918 stub_check_socket_accept(struct ucred *cred, struct socket *socket, 919 struct label *socketlabel) 920 { 921 922 return (0); 923 } 924 925 static int 926 stub_check_socket_bind(struct ucred *cred, struct socket *socket, 927 struct label *socketlabel, struct sockaddr *sockaddr) 928 { 929 930 return (0); 931 } 932 933 static int 934 stub_check_socket_connect(struct ucred *cred, struct socket *socket, 935 struct label *socketlabel, struct sockaddr *sockaddr) 936 { 937 938 return (0); 939 } 940 941 static int 942 stub_check_socket_deliver(struct socket *so, struct label *socketlabel, 943 struct mbuf *m, struct label *mbuflabel) 944 { 945 946 return (0); 947 } 948 949 static int 950 stub_check_socket_listen(struct ucred *cred, struct socket *so, 951 struct label *socketlabel) 952 { 953 954 return (0); 955 } 956 957 static int 958 stub_check_socket_poll(struct ucred *cred, struct socket *so, 959 struct label *socketlabel) 960 { 961 962 return (0); 963 } 964 965 static int 966 stub_check_socket_receive(struct ucred *cred, struct socket *so, 967 struct label *socketlabel) 968 { 969 970 return (0); 971 } 972 973 static int 974 stub_check_socket_relabel(struct ucred *cred, struct socket *socket, 975 struct label *socketlabel, struct label *newlabel) 976 { 977 978 return (0); 979 } 980 static int 981 stub_check_socket_send(struct ucred *cred, struct socket *so, 982 struct label *socketlabel) 983 { 984 985 return (0); 986 } 987 988 static int 989 stub_check_socket_stat(struct ucred *cred, struct socket *so, 990 struct label *socketlabel) 991 { 992 993 return (0); 994 } 995 996 static int 997 stub_check_socket_visible(struct ucred *cred, struct socket *socket, 998 struct label *socketlabel) 999 { 1000 1001 return (0); 1002 } 1003 1004 static int 1005 stub_check_sysarch_ioperm(struct ucred *cred) 1006 { 1007 1008 return (0); 1009 } 1010 1011 static int 1012 stub_check_system_acct(struct ucred *cred, struct vnode *vp, 1013 struct label *vlabel) 1014 { 1015 1016 return (0); 1017 } 1018 1019 static int 1020 stub_check_system_reboot(struct ucred *cred, int how) 1021 { 1022 1023 return (0); 1024 } 1025 1026 static int 1027 stub_check_system_settime(struct ucred *cred) 1028 { 1029 1030 return (0); 1031 } 1032 1033 static int 1034 stub_check_system_swapon(struct ucred *cred, struct vnode *vp, 1035 struct label *label) 1036 { 1037 1038 return (0); 1039 } 1040 1041 static int 1042 stub_check_system_swapoff(struct ucred *cred, struct vnode *vp, 1043 struct label *label) 1044 { 1045 1046 return (0); 1047 } 1048 1049 static int 1050 stub_check_system_sysctl(struct ucred *cred, struct sysctl_oid *oidp, 1051 void *arg1, int arg2, struct sysctl_req *req) 1052 { 1053 1054 return (0); 1055 } 1056 1057 static int 1058 stub_check_vnode_access(struct ucred *cred, struct vnode *vp, 1059 struct label *label, int acc_mode) 1060 { 1061 1062 return (0); 1063 } 1064 1065 static int 1066 stub_check_vnode_chdir(struct ucred *cred, struct vnode *dvp, 1067 struct label *dlabel) 1068 { 1069 1070 return (0); 1071 } 1072 1073 static int 1074 stub_check_vnode_chroot(struct ucred *cred, struct vnode *dvp, 1075 struct label *dlabel) 1076 { 1077 1078 return (0); 1079 } 1080 1081 static int 1082 stub_check_vnode_create(struct ucred *cred, struct vnode *dvp, 1083 struct label *dlabel, struct componentname *cnp, struct vattr *vap) 1084 { 1085 1086 return (0); 1087 } 1088 1089 static int 1090 stub_check_vnode_delete(struct ucred *cred, struct vnode *dvp, 1091 struct label *dlabel, struct vnode *vp, struct label *label, 1092 struct componentname *cnp) 1093 { 1094 1095 return (0); 1096 } 1097 1098 static int 1099 stub_check_vnode_deleteacl(struct ucred *cred, struct vnode *vp, 1100 struct label *label, acl_type_t type) 1101 { 1102 1103 return (0); 1104 } 1105 1106 static int 1107 stub_check_vnode_deleteextattr(struct ucred *cred, struct vnode *vp, 1108 struct label *label, int attrnamespace, const char *name) 1109 { 1110 1111 return (0); 1112 } 1113 1114 static int 1115 stub_check_vnode_exec(struct ucred *cred, struct vnode *vp, 1116 struct label *label, struct image_params *imgp, 1117 struct label *execlabel) 1118 { 1119 1120 return (0); 1121 } 1122 1123 static int 1124 stub_check_vnode_getacl(struct ucred *cred, struct vnode *vp, 1125 struct label *label, acl_type_t type) 1126 { 1127 1128 return (0); 1129 } 1130 1131 static int 1132 stub_check_vnode_getextattr(struct ucred *cred, struct vnode *vp, 1133 struct label *label, int attrnamespace, const char *name, struct uio *uio) 1134 { 1135 1136 return (0); 1137 } 1138 1139 static int 1140 stub_check_vnode_link(struct ucred *cred, struct vnode *dvp, 1141 struct label *dlabel, struct vnode *vp, struct label *label, 1142 struct componentname *cnp) 1143 { 1144 1145 return (0); 1146 } 1147 1148 static int 1149 stub_check_vnode_listextattr(struct ucred *cred, struct vnode *vp, 1150 struct label *label, int attrnamespace) 1151 { 1152 1153 return (0); 1154 } 1155 1156 static int 1157 stub_check_vnode_lookup(struct ucred *cred, struct vnode *dvp, 1158 struct label *dlabel, struct componentname *cnp) 1159 { 1160 1161 return (0); 1162 } 1163 1164 static int 1165 stub_check_vnode_mmap(struct ucred *cred, struct vnode *vp, 1166 struct label *label, int prot, int flags) 1167 { 1168 1169 return (0); 1170 } 1171 1172 static int 1173 stub_check_vnode_open(struct ucred *cred, struct vnode *vp, 1174 struct label *filelabel, int acc_mode) 1175 { 1176 1177 return (0); 1178 } 1179 1180 static int 1181 stub_check_vnode_poll(struct ucred *active_cred, struct ucred *file_cred, 1182 struct vnode *vp, struct label *label) 1183 { 1184 1185 return (0); 1186 } 1187 1188 static int 1189 stub_check_vnode_read(struct ucred *active_cred, struct ucred *file_cred, 1190 struct vnode *vp, struct label *label) 1191 { 1192 1193 return (0); 1194 } 1195 1196 static int 1197 stub_check_vnode_readdir(struct ucred *cred, struct vnode *vp, 1198 struct label *dlabel) 1199 { 1200 1201 return (0); 1202 } 1203 1204 static int 1205 stub_check_vnode_readlink(struct ucred *cred, struct vnode *vp, 1206 struct label *vnodelabel) 1207 { 1208 1209 return (0); 1210 } 1211 1212 static int 1213 stub_check_vnode_relabel(struct ucred *cred, struct vnode *vp, 1214 struct label *vnodelabel, struct label *newlabel) 1215 { 1216 1217 return (0); 1218 } 1219 1220 static int 1221 stub_check_vnode_rename_from(struct ucred *cred, struct vnode *dvp, 1222 struct label *dlabel, struct vnode *vp, struct label *label, 1223 struct componentname *cnp) 1224 { 1225 1226 return (0); 1227 } 1228 1229 static int 1230 stub_check_vnode_rename_to(struct ucred *cred, struct vnode *dvp, 1231 struct label *dlabel, struct vnode *vp, struct label *label, int samedir, 1232 struct componentname *cnp) 1233 { 1234 1235 return (0); 1236 } 1237 1238 static int 1239 stub_check_vnode_revoke(struct ucred *cred, struct vnode *vp, 1240 struct label *label) 1241 { 1242 1243 return (0); 1244 } 1245 1246 static int 1247 stub_check_vnode_setacl(struct ucred *cred, struct vnode *vp, 1248 struct label *label, acl_type_t type, struct acl *acl) 1249 { 1250 1251 return (0); 1252 } 1253 1254 static int 1255 stub_check_vnode_setextattr(struct ucred *cred, struct vnode *vp, 1256 struct label *label, int attrnamespace, const char *name, struct uio *uio) 1257 { 1258 1259 return (0); 1260 } 1261 1262 static int 1263 stub_check_vnode_setflags(struct ucred *cred, struct vnode *vp, 1264 struct label *label, u_long flags) 1265 { 1266 1267 return (0); 1268 } 1269 1270 static int 1271 stub_check_vnode_setmode(struct ucred *cred, struct vnode *vp, 1272 struct label *label, mode_t mode) 1273 { 1274 1275 return (0); 1276 } 1277 1278 static int 1279 stub_check_vnode_setowner(struct ucred *cred, struct vnode *vp, 1280 struct label *label, uid_t uid, gid_t gid) 1281 { 1282 1283 return (0); 1284 } 1285 1286 static int 1287 stub_check_vnode_setutimes(struct ucred *cred, struct vnode *vp, 1288 struct label *label, struct timespec atime, struct timespec mtime) 1289 { 1290 1291 return (0); 1292 } 1293 1294 static int 1295 stub_check_vnode_stat(struct ucred *active_cred, struct ucred *file_cred, 1296 struct vnode *vp, struct label *label) 1297 { 1298 1299 return (0); 1300 } 1301 1302 static int 1303 stub_check_vnode_write(struct ucred *active_cred, 1304 struct ucred *file_cred, struct vnode *vp, struct label *label) 1305 { 1306 1307 return (0); 1308 } 1309 1310 static struct mac_policy_ops mac_stub_ops = 1311 { 1312 .mpo_destroy = stub_destroy, 1313 .mpo_init = stub_init, 1314 .mpo_syscall = stub_syscall, 1315 .mpo_init_bpfdesc_label = stub_init_label, 1316 .mpo_init_cred_label = stub_init_label, 1317 .mpo_init_devfsdirent_label = stub_init_label, 1318 .mpo_init_ifnet_label = stub_init_label, 1319 .mpo_init_inpcb_label = stub_init_label_waitcheck, 1320 .mpo_init_sysv_msgmsg_label = stub_init_label, 1321 .mpo_init_sysv_msgqueue_label = stub_init_label, 1322 .mpo_init_sysv_sema_label = stub_init_label, 1323 .mpo_init_sysv_shm_label = stub_init_label, 1324 .mpo_init_ipq_label = stub_init_label_waitcheck, 1325 .mpo_init_mbuf_label = stub_init_label_waitcheck, 1326 .mpo_init_mount_label = stub_init_label, 1327 .mpo_init_mount_fs_label = stub_init_label, 1328 .mpo_init_pipe_label = stub_init_label, 1329 .mpo_init_socket_label = stub_init_label_waitcheck, 1330 .mpo_init_socket_peer_label = stub_init_label_waitcheck, 1331 .mpo_init_vnode_label = stub_init_label, 1332 .mpo_destroy_bpfdesc_label = stub_destroy_label, 1333 .mpo_destroy_cred_label = stub_destroy_label, 1334 .mpo_destroy_devfsdirent_label = stub_destroy_label, 1335 .mpo_destroy_ifnet_label = stub_destroy_label, 1336 .mpo_destroy_inpcb_label = stub_destroy_label, 1337 .mpo_destroy_sysv_msgmsg_label = stub_destroy_label, 1338 .mpo_destroy_sysv_msgqueue_label = stub_destroy_label, 1339 .mpo_destroy_sysv_sema_label = stub_destroy_label, 1340 .mpo_destroy_sysv_shm_label = stub_destroy_label, 1341 .mpo_destroy_ipq_label = stub_destroy_label, 1342 .mpo_destroy_mbuf_label = stub_destroy_label, 1343 .mpo_destroy_mount_label = stub_destroy_label, 1344 .mpo_destroy_mount_fs_label = stub_destroy_label, 1345 .mpo_destroy_pipe_label = stub_destroy_label, 1346 .mpo_destroy_socket_label = stub_destroy_label, 1347 .mpo_destroy_socket_peer_label = stub_destroy_label, 1348 .mpo_destroy_vnode_label = stub_destroy_label, 1349 .mpo_copy_cred_label = stub_copy_label, 1350 .mpo_copy_ifnet_label = stub_copy_label, 1351 .mpo_copy_mbuf_label = stub_copy_label, 1352 .mpo_copy_pipe_label = stub_copy_label, 1353 .mpo_copy_socket_label = stub_copy_label, 1354 .mpo_copy_vnode_label = stub_copy_label, 1355 .mpo_externalize_cred_label = stub_externalize_label, 1356 .mpo_externalize_ifnet_label = stub_externalize_label, 1357 .mpo_externalize_pipe_label = stub_externalize_label, 1358 .mpo_externalize_socket_label = stub_externalize_label, 1359 .mpo_externalize_socket_peer_label = stub_externalize_label, 1360 .mpo_externalize_vnode_label = stub_externalize_label, 1361 .mpo_internalize_cred_label = stub_internalize_label, 1362 .mpo_internalize_ifnet_label = stub_internalize_label, 1363 .mpo_internalize_pipe_label = stub_internalize_label, 1364 .mpo_internalize_socket_label = stub_internalize_label, 1365 .mpo_internalize_vnode_label = stub_internalize_label, 1366 .mpo_associate_vnode_devfs = stub_associate_vnode_devfs, 1367 .mpo_associate_vnode_extattr = stub_associate_vnode_extattr, 1368 .mpo_associate_vnode_singlelabel = stub_associate_vnode_singlelabel, 1369 .mpo_create_devfs_device = stub_create_devfs_device, 1370 .mpo_create_devfs_directory = stub_create_devfs_directory, 1371 .mpo_create_devfs_symlink = stub_create_devfs_symlink, 1372 .mpo_create_sysv_msgmsg = stub_create_sysv_msgmsg, 1373 .mpo_create_sysv_msgqueue = stub_create_sysv_msgqueue, 1374 .mpo_create_sysv_sema = stub_create_sysv_sema, 1375 .mpo_create_sysv_shm = stub_create_sysv_shm, 1376 .mpo_create_vnode_extattr = stub_create_vnode_extattr, 1377 .mpo_create_mount = stub_create_mount, 1378 .mpo_create_root_mount = stub_create_root_mount, 1379 .mpo_relabel_vnode = stub_relabel_vnode, 1380 .mpo_setlabel_vnode_extattr = stub_setlabel_vnode_extattr, 1381 .mpo_update_devfsdirent = stub_update_devfsdirent, 1382 .mpo_create_mbuf_from_socket = stub_create_mbuf_from_socket, 1383 .mpo_create_pipe = stub_create_pipe, 1384 .mpo_create_socket = stub_create_socket, 1385 .mpo_create_socket_from_socket = stub_create_socket_from_socket, 1386 .mpo_relabel_pipe = stub_relabel_pipe, 1387 .mpo_relabel_socket = stub_relabel_socket, 1388 .mpo_set_socket_peer_from_mbuf = stub_set_socket_peer_from_mbuf, 1389 .mpo_set_socket_peer_from_socket = stub_set_socket_peer_from_socket, 1390 .mpo_create_bpfdesc = stub_create_bpfdesc, 1391 .mpo_create_ifnet = stub_create_ifnet, 1392 .mpo_create_inpcb_from_socket = stub_create_inpcb_from_socket, 1393 .mpo_create_ipq = stub_create_ipq, 1394 .mpo_create_datagram_from_ipq = stub_create_datagram_from_ipq, 1395 .mpo_create_fragment = stub_create_fragment, 1396 .mpo_create_ipq = stub_create_ipq, 1397 .mpo_create_mbuf_from_inpcb = stub_create_mbuf_from_inpcb, 1398 .mpo_create_mbuf_from_mbuf = stub_create_mbuf_from_mbuf, 1399 .mpo_create_mbuf_linklayer = stub_create_mbuf_linklayer, 1400 .mpo_create_mbuf_from_bpfdesc = stub_create_mbuf_from_bpfdesc, 1401 .mpo_create_mbuf_from_ifnet = stub_create_mbuf_from_ifnet, 1402 .mpo_create_mbuf_multicast_encap = stub_create_mbuf_multicast_encap, 1403 .mpo_create_mbuf_netlayer = stub_create_mbuf_netlayer, 1404 .mpo_fragment_match = stub_fragment_match, 1405 .mpo_reflect_mbuf_icmp = stub_reflect_mbuf_icmp, 1406 .mpo_reflect_mbuf_tcp = stub_reflect_mbuf_tcp, 1407 .mpo_relabel_ifnet = stub_relabel_ifnet, 1408 .mpo_update_ipq = stub_update_ipq, 1409 .mpo_inpcb_sosetlabel = stub_inpcb_sosetlabel, 1410 .mpo_execve_transition = stub_execve_transition, 1411 .mpo_execve_will_transition = stub_execve_will_transition, 1412 .mpo_create_proc0 = stub_create_proc0, 1413 .mpo_create_proc1 = stub_create_proc1, 1414 .mpo_relabel_cred = stub_relabel_cred, 1415 .mpo_thread_userret = stub_thread_userret, 1416 .mpo_cleanup_sysv_msgmsg = stub_cleanup_sysv_msgmsg, 1417 .mpo_cleanup_sysv_msgqueue = stub_cleanup_sysv_msgqueue, 1418 .mpo_cleanup_sysv_sema = stub_cleanup_sysv_sema, 1419 .mpo_cleanup_sysv_shm = stub_cleanup_sysv_shm, 1420 .mpo_check_bpfdesc_receive = stub_check_bpfdesc_receive, 1421 .mpo_check_cred_relabel = stub_check_cred_relabel, 1422 .mpo_check_cred_visible = stub_check_cred_visible, 1423 .mpo_check_ifnet_relabel = stub_check_ifnet_relabel, 1424 .mpo_check_ifnet_transmit = stub_check_ifnet_transmit, 1425 .mpo_check_inpcb_deliver = stub_check_inpcb_deliver, 1426 .mpo_check_sysv_msgmsq = stub_check_sysv_msgmsq, 1427 .mpo_check_sysv_msgrcv = stub_check_sysv_msgrcv, 1428 .mpo_check_sysv_msgrmid = stub_check_sysv_msgrmid, 1429 .mpo_check_sysv_msqget = stub_check_sysv_msqget, 1430 .mpo_check_sysv_msqsnd = stub_check_sysv_msqsnd, 1431 .mpo_check_sysv_msqrcv = stub_check_sysv_msqrcv, 1432 .mpo_check_sysv_msqctl = stub_check_sysv_msqctl, 1433 .mpo_check_sysv_semctl = stub_check_sysv_semctl, 1434 .mpo_check_sysv_semget = stub_check_sysv_semget, 1435 .mpo_check_sysv_semop = stub_check_sysv_semop, 1436 .mpo_check_sysv_shmat = stub_check_sysv_shmat, 1437 .mpo_check_sysv_shmctl = stub_check_sysv_shmctl, 1438 .mpo_check_sysv_shmdt = stub_check_sysv_shmdt, 1439 .mpo_check_sysv_shmget = stub_check_sysv_shmget, 1440 .mpo_check_kenv_dump = stub_check_kenv_dump, 1441 .mpo_check_kenv_get = stub_check_kenv_get, 1442 .mpo_check_kenv_set = stub_check_kenv_set, 1443 .mpo_check_kenv_unset = stub_check_kenv_unset, 1444 .mpo_check_kld_load = stub_check_kld_load, 1445 .mpo_check_kld_stat = stub_check_kld_stat, 1446 .mpo_check_kld_unload = stub_check_kld_unload, 1447 .mpo_check_mount_stat = stub_check_mount_stat, 1448 .mpo_check_pipe_ioctl = stub_check_pipe_ioctl, 1449 .mpo_check_pipe_poll = stub_check_pipe_poll, 1450 .mpo_check_pipe_read = stub_check_pipe_read, 1451 .mpo_check_pipe_relabel = stub_check_pipe_relabel, 1452 .mpo_check_pipe_stat = stub_check_pipe_stat, 1453 .mpo_check_pipe_write = stub_check_pipe_write, 1454 .mpo_check_proc_debug = stub_check_proc_debug, 1455 .mpo_check_proc_sched = stub_check_proc_sched, 1456 .mpo_check_proc_setuid = stub_check_proc_setuid, 1457 .mpo_check_proc_seteuid = stub_check_proc_seteuid, 1458 .mpo_check_proc_setgid = stub_check_proc_setgid, 1459 .mpo_check_proc_setegid = stub_check_proc_setegid, 1460 .mpo_check_proc_setgroups = stub_check_proc_setgroups, 1461 .mpo_check_proc_setreuid = stub_check_proc_setreuid, 1462 .mpo_check_proc_setregid = stub_check_proc_setregid, 1463 .mpo_check_proc_setresuid = stub_check_proc_setresuid, 1464 .mpo_check_proc_setresgid = stub_check_proc_setresgid, 1465 .mpo_check_proc_signal = stub_check_proc_signal, 1466 .mpo_check_proc_wait = stub_check_proc_wait, 1467 .mpo_check_socket_accept = stub_check_socket_accept, 1468 .mpo_check_socket_bind = stub_check_socket_bind, 1469 .mpo_check_socket_connect = stub_check_socket_connect, 1470 .mpo_check_socket_deliver = stub_check_socket_deliver, 1471 .mpo_check_socket_listen = stub_check_socket_listen, 1472 .mpo_check_socket_poll = stub_check_socket_poll, 1473 .mpo_check_socket_receive = stub_check_socket_receive, 1474 .mpo_check_socket_relabel = stub_check_socket_relabel, 1475 .mpo_check_socket_send = stub_check_socket_send, 1476 .mpo_check_socket_stat = stub_check_socket_stat, 1477 .mpo_check_socket_visible = stub_check_socket_visible, 1478 .mpo_check_sysarch_ioperm = stub_check_sysarch_ioperm, 1479 .mpo_check_system_acct = stub_check_system_acct, 1480 .mpo_check_system_reboot = stub_check_system_reboot, 1481 .mpo_check_system_settime = stub_check_system_settime, 1482 .mpo_check_system_swapon = stub_check_system_swapon, 1483 .mpo_check_system_swapoff = stub_check_system_swapoff, 1484 .mpo_check_system_sysctl = stub_check_system_sysctl, 1485 .mpo_check_vnode_access = stub_check_vnode_access, 1486 .mpo_check_vnode_chdir = stub_check_vnode_chdir, 1487 .mpo_check_vnode_chroot = stub_check_vnode_chroot, 1488 .mpo_check_vnode_create = stub_check_vnode_create, 1489 .mpo_check_vnode_delete = stub_check_vnode_delete, 1490 .mpo_check_vnode_deleteacl = stub_check_vnode_deleteacl, 1491 .mpo_check_vnode_deleteextattr = stub_check_vnode_deleteextattr, 1492 .mpo_check_vnode_exec = stub_check_vnode_exec, 1493 .mpo_check_vnode_getacl = stub_check_vnode_getacl, 1494 .mpo_check_vnode_getextattr = stub_check_vnode_getextattr, 1495 .mpo_check_vnode_link = stub_check_vnode_link, 1496 .mpo_check_vnode_listextattr = stub_check_vnode_listextattr, 1497 .mpo_check_vnode_lookup = stub_check_vnode_lookup, 1498 .mpo_check_vnode_mmap = stub_check_vnode_mmap, 1499 .mpo_check_vnode_open = stub_check_vnode_open, 1500 .mpo_check_vnode_poll = stub_check_vnode_poll, 1501 .mpo_check_vnode_read = stub_check_vnode_read, 1502 .mpo_check_vnode_readdir = stub_check_vnode_readdir, 1503 .mpo_check_vnode_readlink = stub_check_vnode_readlink, 1504 .mpo_check_vnode_relabel = stub_check_vnode_relabel, 1505 .mpo_check_vnode_rename_from = stub_check_vnode_rename_from, 1506 .mpo_check_vnode_rename_to = stub_check_vnode_rename_to, 1507 .mpo_check_vnode_revoke = stub_check_vnode_revoke, 1508 .mpo_check_vnode_setacl = stub_check_vnode_setacl, 1509 .mpo_check_vnode_setextattr = stub_check_vnode_setextattr, 1510 .mpo_check_vnode_setflags = stub_check_vnode_setflags, 1511 .mpo_check_vnode_setmode = stub_check_vnode_setmode, 1512 .mpo_check_vnode_setowner = stub_check_vnode_setowner, 1513 .mpo_check_vnode_setutimes = stub_check_vnode_setutimes, 1514 .mpo_check_vnode_stat = stub_check_vnode_stat, 1515 .mpo_check_vnode_write = stub_check_vnode_write, 1516 }; 1517 1518 MAC_POLICY_SET(&mac_stub_ops, mac_stub, "TrustedBSD MAC/Stub", 1519 MPC_LOADTIME_FLAG_UNLOADOK, NULL); 1520