mac_stub.c revision 165469
1/*- 2 * Copyright (c) 1999-2002 Robert N. M. Watson 3 * Copyright (c) 2001-2005 McAfee, Inc. 4 * Copyright (c) 2005 SPARTA, Inc. 5 * All rights reserved. 6 * 7 * This software was developed by Robert Watson for the TrustedBSD Project. 8 * 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. 13 * 14 * This software was enhanced by SPARTA ISSO under SPAWAR contract 15 * N66001-04-C-6019 ("SEFOS"). 16 * 17 * Redistribution and use in source and binary forms, with or without 18 * modification, are permitted provided that the following conditions 19 * are met: 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. 25 * 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 36 * SUCH DAMAGE. 37 * 38 * $FreeBSD: head/sys/security/mac_stub/mac_stub.c 165469 2006-12-22 23:34:47Z rwatson $ 39 */ 40 41/* 42 * Developed by the TrustedBSD Project. 43 * 44 * Stub module that implements a NOOP for most (if not all) MAC Framework 45 * policy entry points. 46 */ 47 48#include <sys/types.h> 49#include <sys/param.h> 50#include <sys/acl.h> 51#include <sys/conf.h> 52#include <sys/extattr.h> 53#include <sys/kernel.h> 54#include <sys/ksem.h> 55#include <sys/mac.h> 56#include <sys/mount.h> 57#include <sys/proc.h> 58#include <sys/systm.h> 59#include <sys/sysproto.h> 60#include <sys/sysent.h> 61#include <sys/vnode.h> 62#include <sys/file.h> 63#include <sys/socket.h> 64#include <sys/socketvar.h> 65#include <sys/pipe.h> 66#include <sys/sx.h> 67#include <sys/sysctl.h> 68#include <sys/msg.h> 69#include <sys/sem.h> 70#include <sys/shm.h> 71 72#include <fs/devfs/devfs.h> 73 74#include <net/bpfdesc.h> 75#include <net/if.h> 76#include <net/if_types.h> 77#include <net/if_var.h> 78 79#include <netinet/in.h> 80#include <netinet/in_pcb.h> 81#include <netinet/ip_var.h> 82 83#include <vm/vm.h> 84 85#include <security/mac/mac_policy.h> 86 87SYSCTL_DECL(_security_mac); 88 89SYSCTL_NODE(_security_mac, OID_AUTO, stub, CTLFLAG_RW, 0, 90 "TrustedBSD mac_stub policy controls"); 91 92static int stub_enabled = 1; 93SYSCTL_INT(_security_mac_stub, OID_AUTO, enabled, CTLFLAG_RW, 94 &stub_enabled, 0, "Enforce mac_stub policy"); 95 96/* 97 * Policy module operations. 98 */ 99static void 100stub_destroy(struct mac_policy_conf *conf) 101{ 102 103} 104 105static void 106stub_init(struct mac_policy_conf *conf) 107{ 108 109} 110 111static int 112stub_syscall(struct thread *td, int call, void *arg) 113{ 114 115 return (0); 116} 117 118/* 119 * Label operations. 120 */ 121static void 122stub_init_label(struct label *label) 123{ 124 125} 126 127static int 128stub_init_label_waitcheck(struct label *label, int flag) 129{ 130 131 return (0); 132} 133 134static void 135stub_destroy_label(struct label *label) 136{ 137 138} 139 140static void 141stub_copy_label(struct label *src, struct label *dest) 142{ 143 144} 145 146static int 147stub_externalize_label(struct label *label, char *element_name, 148 struct sbuf *sb, int *claimed) 149{ 150 151 return (0); 152} 153 154static int 155stub_internalize_label(struct label *label, char *element_name, 156 char *element_data, int *claimed) 157{ 158 159 return (0); 160} 161 162/* 163 * Labeling event operations: file system objects, and things that look 164 * a lot like file system objects. 165 */ 166static void 167stub_associate_vnode_devfs(struct mount *mp, struct label *fslabel, 168 struct devfs_dirent *de, struct label *delabel, struct vnode *vp, 169 struct label *vlabel) 170{ 171 172} 173 174static int 175stub_associate_vnode_extattr(struct mount *mp, struct label *fslabel, 176 struct vnode *vp, struct label *vlabel) 177{ 178 179 return (0); 180} 181 182static void 183stub_associate_vnode_singlelabel(struct mount *mp, 184 struct label *fslabel, struct vnode *vp, struct label *vlabel) 185{ 186 187} 188 189static void 190stub_create_devfs_device(struct ucred *cred, struct mount *mp, 191 struct cdev *dev, struct devfs_dirent *devfs_dirent, struct label *label) 192{ 193 194} 195 196static void 197stub_create_devfs_directory(struct mount *mp, char *dirname, 198 int dirnamelen, struct devfs_dirent *devfs_dirent, struct label *label) 199{ 200 201} 202 203static void 204stub_create_devfs_symlink(struct ucred *cred, struct mount *mp, 205 struct devfs_dirent *dd, struct label *ddlabel, struct devfs_dirent *de, 206 struct label *delabel) 207{ 208 209} 210 211static int 212stub_create_vnode_extattr(struct ucred *cred, struct mount *mp, 213 struct label *fslabel, struct vnode *dvp, struct label *dlabel, 214 struct vnode *vp, struct label *vlabel, struct componentname *cnp) 215{ 216 217 return (0); 218} 219 220static void 221stub_create_mount(struct ucred *cred, struct mount *mp, 222 struct label *mntlabel, struct label *fslabel) 223{ 224 225} 226 227static void 228stub_relabel_vnode(struct ucred *cred, struct vnode *vp, 229 struct label *vnodelabel, struct label *label) 230{ 231 232} 233 234static int 235stub_setlabel_vnode_extattr(struct ucred *cred, struct vnode *vp, 236 struct label *vlabel, struct label *intlabel) 237{ 238 239 return (0); 240} 241 242static void 243stub_update_devfsdirent(struct mount *mp, 244 struct devfs_dirent *devfs_dirent, struct label *direntlabel, 245 struct vnode *vp, struct label *vnodelabel) 246{ 247 248} 249 250/* 251 * Labeling event operations: IPC object. 252 */ 253static void 254stub_create_mbuf_from_socket(struct socket *so, struct label *socketlabel, 255 struct mbuf *m, struct label *mbuflabel) 256{ 257 258} 259 260static void 261stub_create_socket(struct ucred *cred, struct socket *socket, 262 struct label *socketlabel) 263{ 264 265} 266 267static void 268stub_create_pipe(struct ucred *cred, struct pipepair *pp, 269 struct label *pipelabel) 270{ 271 272} 273 274static void 275stub_create_posix_sem(struct ucred *cred, struct ksem *ksemptr, 276 struct label *ks_label) 277{ 278 279} 280 281static void 282stub_create_socket_from_socket(struct socket *oldsocket, 283 struct label *oldsocketlabel, struct socket *newsocket, 284 struct label *newsocketlabel) 285{ 286 287} 288 289static void 290stub_relabel_socket(struct ucred *cred, struct socket *socket, 291 struct label *socketlabel, struct label *newlabel) 292{ 293 294} 295 296static void 297stub_relabel_pipe(struct ucred *cred, struct pipepair *pp, 298 struct label *pipelabel, struct label *newlabel) 299{ 300 301} 302 303static void 304stub_set_socket_peer_from_mbuf(struct mbuf *mbuf, struct label *mbuflabel, 305 struct socket *socket, struct label *socketpeerlabel) 306{ 307 308} 309 310static void 311stub_set_socket_peer_from_socket(struct socket *oldsocket, 312 struct label *oldsocketlabel, struct socket *newsocket, 313 struct label *newsocketpeerlabel) 314{ 315 316} 317 318/* 319 * Labeling event operations: network objects. 320 */ 321static void 322stub_create_bpfdesc(struct ucred *cred, struct bpf_d *bpf_d, 323 struct label *bpflabel) 324{ 325 326} 327 328static void 329stub_create_datagram_from_ipq(struct ipq *ipq, struct label *ipqlabel, 330 struct mbuf *datagram, struct label *datagramlabel) 331{ 332 333} 334 335static void 336stub_create_fragment(struct mbuf *datagram, struct label *datagramlabel, 337 struct mbuf *fragment, struct label *fragmentlabel) 338{ 339 340} 341 342static void 343stub_create_ifnet(struct ifnet *ifnet, struct label *ifnetlabel) 344{ 345 346} 347 348static void 349stub_create_inpcb_from_socket(struct socket *so, struct label *solabel, 350 struct inpcb *inp, struct label *inplabel) 351{ 352 353} 354 355static void 356stub_create_sysv_msgmsg(struct ucred *cred, struct msqid_kernel *msqkptr, 357 struct label *msqlabel, struct msg *msgptr, struct label *msglabel) 358{ 359 360} 361 362static void 363stub_create_sysv_msgqueue(struct ucred *cred, struct msqid_kernel *msqkptr, 364 struct label *msqlabel) 365{ 366 367} 368 369static void 370stub_create_sysv_sem(struct ucred *cred, struct semid_kernel *semakptr, 371 struct label *semalabel) 372{ 373 374} 375 376static void 377stub_create_sysv_shm(struct ucred *cred, struct shmid_kernel *shmsegptr, 378 struct label *shmalabel) 379{ 380 381} 382 383static void 384stub_create_ipq(struct mbuf *fragment, struct label *fragmentlabel, 385 struct ipq *ipq, struct label *ipqlabel) 386{ 387 388} 389 390static void 391stub_create_mbuf_from_inpcb(struct inpcb *inp, struct label *inplabel, 392 struct mbuf *m, struct label *mlabel) 393{ 394 395} 396 397static void 398stub_create_mbuf_linklayer(struct ifnet *ifnet, struct label *ifnetlabel, 399 struct mbuf *mbuf, struct label *mbuflabel) 400{ 401 402} 403 404static void 405stub_create_mbuf_from_bpfdesc(struct bpf_d *bpf_d, struct label *bpflabel, 406 struct mbuf *mbuf, struct label *mbuflabel) 407{ 408 409} 410 411static void 412stub_create_mbuf_from_ifnet(struct ifnet *ifnet, struct label *ifnetlabel, 413 struct mbuf *m, struct label *mbuflabel) 414{ 415 416} 417 418static void 419stub_create_mbuf_multicast_encap(struct mbuf *oldmbuf, 420 struct label *oldmbuflabel, struct ifnet *ifnet, struct label *ifnetlabel, 421 struct mbuf *newmbuf, struct label *newmbuflabel) 422{ 423 424} 425 426static void 427stub_create_mbuf_netlayer(struct mbuf *oldmbuf, 428 struct label *oldmbuflabel, struct mbuf *newmbuf, struct label *newmbuflabel) 429{ 430 431} 432 433static int 434stub_fragment_match(struct mbuf *fragment, struct label *fragmentlabel, 435 struct ipq *ipq, struct label *ipqlabel) 436{ 437 438 return (1); 439} 440 441static void 442stub_reflect_mbuf_icmp(struct mbuf *m, struct label *mlabel) 443{ 444 445} 446 447static void 448stub_reflect_mbuf_tcp(struct mbuf *m, struct label *mlabel) 449{ 450 451} 452 453static void 454stub_relabel_ifnet(struct ucred *cred, struct ifnet *ifnet, 455 struct label *ifnetlabel, struct label *newlabel) 456{ 457 458} 459 460static void 461stub_update_ipq(struct mbuf *fragment, struct label *fragmentlabel, 462 struct ipq *ipq, struct label *ipqlabel) 463{ 464 465} 466 467static void 468stub_inpcb_sosetlabel(struct socket *so, struct label *solabel, 469 struct inpcb *inp, struct label *inplabel) 470{ 471 472} 473 474/* 475 * Labeling event operations: processes. 476 */ 477static void 478stub_execve_transition(struct ucred *old, struct ucred *new, 479 struct vnode *vp, struct label *vnodelabel, 480 struct label *interpvnodelabel, struct image_params *imgp, 481 struct label *execlabel) 482{ 483 484} 485 486static int 487stub_execve_will_transition(struct ucred *old, struct vnode *vp, 488 struct label *vnodelabel, struct label *interpvnodelabel, 489 struct image_params *imgp, struct label *execlabel) 490{ 491 492 return (0); 493} 494 495static void 496stub_create_proc0(struct ucred *cred) 497{ 498 499} 500 501static void 502stub_create_proc1(struct ucred *cred) 503{ 504 505} 506 507static void 508stub_relabel_cred(struct ucred *cred, struct label *newlabel) 509{ 510 511} 512 513static void 514stub_thread_userret(struct thread *td) 515{ 516 517} 518 519/* 520 * Label cleanup/flush operations 521 */ 522static void 523stub_cleanup_sysv_msgmsg(struct label *msglabel) 524{ 525 526} 527 528static void 529stub_cleanup_sysv_msgqueue(struct label *msqlabel) 530{ 531 532} 533 534static void 535stub_cleanup_sysv_sem(struct label *semalabel) 536{ 537 538} 539 540static void 541stub_cleanup_sysv_shm(struct label *shmlabel) 542{ 543 544} 545 546/* 547 * Access control checks. 548 */ 549static int 550stub_check_bpfdesc_receive(struct bpf_d *bpf_d, struct label *bpflabel, 551 struct ifnet *ifnet, struct label *ifnet_label) 552{ 553 554 return (0); 555} 556 557static int 558stub_check_cred_relabel(struct ucred *cred, struct label *newlabel) 559{ 560 561 return (0); 562} 563 564static int 565stub_check_cred_visible(struct ucred *u1, struct ucred *u2) 566{ 567 568 return (0); 569} 570 571static int 572stub_check_ifnet_relabel(struct ucred *cred, struct ifnet *ifnet, 573 struct label *ifnetlabel, struct label *newlabel) 574{ 575 576 return (0); 577} 578 579static int 580stub_check_ifnet_transmit(struct ifnet *ifnet, struct label *ifnetlabel, 581 struct mbuf *m, struct label *mbuflabel) 582{ 583 584 return (0); 585} 586 587static int 588stub_check_inpcb_deliver(struct inpcb *inp, struct label *inplabel, 589 struct mbuf *m, struct label *mlabel) 590{ 591 592 return (0); 593} 594 595static int 596stub_check_sysv_msgmsq(struct ucred *cred, struct msg *msgptr, 597 struct label *msglabel, struct msqid_kernel *msqkptr, 598 struct label *msqklabel) 599{ 600 601 return (0); 602} 603 604static int 605stub_check_sysv_msgrcv(struct ucred *cred, struct msg *msgptr, 606 struct label *msglabel) 607{ 608 609 return (0); 610} 611 612 613static int 614stub_check_sysv_msgrmid(struct ucred *cred, struct msg *msgptr, 615 struct label *msglabel) 616{ 617 618 return (0); 619} 620 621 622static int 623stub_check_sysv_msqget(struct ucred *cred, struct msqid_kernel *msqkptr, 624 struct label *msqklabel) 625{ 626 627 return (0); 628} 629 630 631static int 632stub_check_sysv_msqsnd(struct ucred *cred, struct msqid_kernel *msqkptr, 633 struct label *msqklabel) 634{ 635 636 return (0); 637} 638 639static int 640stub_check_sysv_msqrcv(struct ucred *cred, struct msqid_kernel *msqkptr, 641 struct label *msqklabel) 642{ 643 644 return (0); 645} 646 647 648static int 649stub_check_sysv_msqctl(struct ucred *cred, struct msqid_kernel *msqkptr, 650 struct label *msqklabel, int cmd) 651{ 652 653 return (0); 654} 655 656 657static int 658stub_check_sysv_semctl(struct ucred *cred, struct semid_kernel *semakptr, 659 struct label *semaklabel, int cmd) 660{ 661 662 return (0); 663} 664 665static int 666stub_check_sysv_semget(struct ucred *cred, struct semid_kernel *semakptr, 667 struct label *semaklabel) 668{ 669 670 return (0); 671} 672 673 674static int 675stub_check_sysv_semop(struct ucred *cred, struct semid_kernel *semakptr, 676 struct label *semaklabel, size_t accesstype) 677{ 678 679 return (0); 680} 681 682static int 683stub_check_sysv_shmat(struct ucred *cred, struct shmid_kernel *shmsegptr, 684 struct label *shmseglabel, int shmflg) 685{ 686 687 return (0); 688} 689 690static int 691stub_check_sysv_shmctl(struct ucred *cred, struct shmid_kernel *shmsegptr, 692 struct label *shmseglabel, int cmd) 693{ 694 695 return (0); 696} 697 698static int 699stub_check_sysv_shmdt(struct ucred *cred, struct shmid_kernel *shmsegptr, 700 struct label *shmseglabel) 701{ 702 703 return (0); 704} 705 706 707static int 708stub_check_sysv_shmget(struct ucred *cred, struct shmid_kernel *shmsegptr, 709 struct label *shmseglabel, int shmflg) 710{ 711 712 return (0); 713} 714 715static int 716stub_check_kenv_dump(struct ucred *cred) 717{ 718 719 return (0); 720} 721 722static int 723stub_check_kenv_get(struct ucred *cred, char *name) 724{ 725 726 return (0); 727} 728 729static int 730stub_check_kenv_set(struct ucred *cred, char *name, char *value) 731{ 732 733 return (0); 734} 735 736static int 737stub_check_kenv_unset(struct ucred *cred, char *name) 738{ 739 740 return (0); 741} 742 743static int 744stub_check_kld_load(struct ucred *cred, struct vnode *vp, 745 struct label *vlabel) 746{ 747 748 return (0); 749} 750 751static int 752stub_check_kld_stat(struct ucred *cred) 753{ 754 755 return (0); 756} 757 758static int 759stub_check_kld_unload(struct ucred *cred) 760{ 761 762 return (0); 763} 764 765static int 766stub_check_mount_stat(struct ucred *cred, struct mount *mp, 767 struct label *mntlabel) 768{ 769 770 return (0); 771} 772 773static int 774stub_check_pipe_ioctl(struct ucred *cred, struct pipepair *pp, 775 struct label *pipelabel, unsigned long cmd, void /* caddr_t */ *data) 776{ 777 778 return (0); 779} 780 781static int 782stub_check_pipe_poll(struct ucred *cred, struct pipepair *pp, 783 struct label *pipelabel) 784{ 785 786 return (0); 787} 788 789static int 790stub_check_pipe_read(struct ucred *cred, struct pipepair *pp, 791 struct label *pipelabel) 792{ 793 794 return (0); 795} 796 797static int 798stub_check_pipe_relabel(struct ucred *cred, struct pipepair *pp, 799 struct label *pipelabel, struct label *newlabel) 800{ 801 802 return (0); 803} 804 805static int 806stub_check_pipe_stat(struct ucred *cred, struct pipepair *pp, 807 struct label *pipelabel) 808{ 809 810 return (0); 811} 812 813static int 814stub_check_pipe_write(struct ucred *cred, struct pipepair *pp, 815 struct label *pipelabel) 816{ 817 818 return (0); 819} 820 821static int 822stub_check_posix_sem_destroy(struct ucred *cred, struct ksem *ksemptr, 823 struct label *ks_label) 824{ 825 826 return (0); 827} 828 829static int 830stub_check_posix_sem_getvalue(struct ucred *cred, struct ksem *ksemptr, 831 struct label *ks_label) 832{ 833 834 return (0); 835} 836 837static int 838stub_check_posix_sem_open(struct ucred *cred, struct ksem *ksemptr, 839 struct label *ks_label) 840{ 841 842 return (0); 843} 844 845static int 846stub_check_posix_sem_post(struct ucred *cred, struct ksem *ksemptr, 847 struct label *ks_label) 848{ 849 850 return (0); 851} 852 853static int 854stub_check_posix_sem_unlink(struct ucred *cred, struct ksem *ksemptr, 855 struct label *ks_label) 856{ 857 858 return (0); 859} 860 861static int 862stub_check_posix_sem_wait(struct ucred *cred, struct ksem *ksemptr, 863 struct label *ks_label) 864{ 865 866 return (0); 867} 868 869static int 870stub_check_proc_debug(struct ucred *cred, struct proc *proc) 871{ 872 873 return (0); 874} 875 876static int 877stub_check_proc_sched(struct ucred *cred, struct proc *proc) 878{ 879 880 return (0); 881} 882 883static int 884stub_check_proc_signal(struct ucred *cred, struct proc *proc, int signum) 885{ 886 887 return (0); 888} 889 890static int 891stub_check_proc_wait(struct ucred *cred, struct proc *proc) 892{ 893 894 return (0); 895} 896 897static int 898stub_check_proc_setuid(struct ucred *cred, uid_t uid) 899{ 900 901 return (0); 902} 903 904static int 905stub_check_proc_seteuid(struct ucred *cred, uid_t euid) 906{ 907 908 return (0); 909} 910 911static int 912stub_check_proc_setgid(struct ucred *cred, gid_t gid) 913{ 914 915 return (0); 916} 917 918static int 919stub_check_proc_setegid(struct ucred *cred, gid_t egid) 920{ 921 922 return (0); 923} 924 925static int 926stub_check_proc_setgroups(struct ucred *cred, int ngroups, 927 gid_t *gidset) 928{ 929 930 return (0); 931} 932 933static int 934stub_check_proc_setreuid(struct ucred *cred, uid_t ruid, uid_t euid) 935{ 936 937 return (0); 938} 939 940static int 941stub_check_proc_setregid(struct ucred *cred, gid_t rgid, gid_t egid) 942{ 943 944 return (0); 945} 946 947static int 948stub_check_proc_setresuid(struct ucred *cred, uid_t ruid, uid_t euid, 949 uid_t suid) 950{ 951 952 return (0); 953} 954 955static int 956stub_check_proc_setresgid(struct ucred *cred, gid_t rgid, gid_t egid, 957 gid_t sgid) 958{ 959 960 return (0); 961} 962 963static int 964stub_check_socket_accept(struct ucred *cred, struct socket *socket, 965 struct label *socketlabel) 966{ 967 968 return (0); 969} 970 971static int 972stub_check_socket_bind(struct ucred *cred, struct socket *socket, 973 struct label *socketlabel, struct sockaddr *sockaddr) 974{ 975 976 return (0); 977} 978 979static int 980stub_check_socket_connect(struct ucred *cred, struct socket *socket, 981 struct label *socketlabel, struct sockaddr *sockaddr) 982{ 983 984 return (0); 985} 986 987static int 988stub_check_socket_create(struct ucred *cred, int domain, int type, 989 int protocol) 990{ 991 992 return (0); 993} 994 995static int 996stub_check_socket_deliver(struct socket *so, struct label *socketlabel, 997 struct mbuf *m, struct label *mbuflabel) 998{ 999 1000 return (0); 1001} 1002 1003static int 1004stub_check_socket_listen(struct ucred *cred, struct socket *so, 1005 struct label *socketlabel) 1006{ 1007 1008 return (0); 1009} 1010 1011static int 1012stub_check_socket_poll(struct ucred *cred, struct socket *so, 1013 struct label *socketlabel) 1014{ 1015 1016 return (0); 1017} 1018 1019static int 1020stub_check_socket_receive(struct ucred *cred, struct socket *so, 1021 struct label *socketlabel) 1022{ 1023 1024 return (0); 1025} 1026 1027static int 1028stub_check_socket_relabel(struct ucred *cred, struct socket *socket, 1029 struct label *socketlabel, struct label *newlabel) 1030{ 1031 1032 return (0); 1033} 1034static int 1035stub_check_socket_send(struct ucred *cred, struct socket *so, 1036 struct label *socketlabel) 1037{ 1038 1039 return (0); 1040} 1041 1042static int 1043stub_check_socket_stat(struct ucred *cred, struct socket *so, 1044 struct label *socketlabel) 1045{ 1046 1047 return (0); 1048} 1049 1050static int 1051stub_check_socket_visible(struct ucred *cred, struct socket *socket, 1052 struct label *socketlabel) 1053{ 1054 1055 return (0); 1056} 1057 1058static int 1059stub_check_sysarch_ioperm(struct ucred *cred) 1060{ 1061 1062 return (0); 1063} 1064 1065static int 1066stub_check_system_acct(struct ucred *cred, struct vnode *vp, 1067 struct label *vlabel) 1068{ 1069 1070 return (0); 1071} 1072 1073static int 1074stub_check_system_reboot(struct ucred *cred, int how) 1075{ 1076 1077 return (0); 1078} 1079 1080static int 1081stub_check_system_settime(struct ucred *cred) 1082{ 1083 1084 return (0); 1085} 1086 1087static int 1088stub_check_system_swapon(struct ucred *cred, struct vnode *vp, 1089 struct label *label) 1090{ 1091 1092 return (0); 1093} 1094 1095static int 1096stub_check_system_swapoff(struct ucred *cred, struct vnode *vp, 1097 struct label *label) 1098{ 1099 1100 return (0); 1101} 1102 1103static int 1104stub_check_system_sysctl(struct ucred *cred, struct sysctl_oid *oidp, 1105 void *arg1, int arg2, struct sysctl_req *req) 1106{ 1107 1108 return (0); 1109} 1110 1111static int 1112stub_check_vnode_access(struct ucred *cred, struct vnode *vp, 1113 struct label *label, int acc_mode) 1114{ 1115 1116 return (0); 1117} 1118 1119static int 1120stub_check_vnode_chdir(struct ucred *cred, struct vnode *dvp, 1121 struct label *dlabel) 1122{ 1123 1124 return (0); 1125} 1126 1127static int 1128stub_check_vnode_chroot(struct ucred *cred, struct vnode *dvp, 1129 struct label *dlabel) 1130{ 1131 1132 return (0); 1133} 1134 1135static int 1136stub_check_vnode_create(struct ucred *cred, struct vnode *dvp, 1137 struct label *dlabel, struct componentname *cnp, struct vattr *vap) 1138{ 1139 1140 return (0); 1141} 1142 1143static int 1144stub_check_vnode_delete(struct ucred *cred, struct vnode *dvp, 1145 struct label *dlabel, struct vnode *vp, struct label *label, 1146 struct componentname *cnp) 1147{ 1148 1149 return (0); 1150} 1151 1152static int 1153stub_check_vnode_deleteacl(struct ucred *cred, struct vnode *vp, 1154 struct label *label, acl_type_t type) 1155{ 1156 1157 return (0); 1158} 1159 1160static int 1161stub_check_vnode_deleteextattr(struct ucred *cred, struct vnode *vp, 1162 struct label *label, int attrnamespace, const char *name) 1163{ 1164 1165 return (0); 1166} 1167 1168static int 1169stub_check_vnode_exec(struct ucred *cred, struct vnode *vp, 1170 struct label *label, struct image_params *imgp, 1171 struct label *execlabel) 1172{ 1173 1174 return (0); 1175} 1176 1177static int 1178stub_check_vnode_getacl(struct ucred *cred, struct vnode *vp, 1179 struct label *label, acl_type_t type) 1180{ 1181 1182 return (0); 1183} 1184 1185static int 1186stub_check_vnode_getextattr(struct ucred *cred, struct vnode *vp, 1187 struct label *label, int attrnamespace, const char *name, struct uio *uio) 1188{ 1189 1190 return (0); 1191} 1192 1193static int 1194stub_check_vnode_link(struct ucred *cred, struct vnode *dvp, 1195 struct label *dlabel, struct vnode *vp, struct label *label, 1196 struct componentname *cnp) 1197{ 1198 1199 return (0); 1200} 1201 1202static int 1203stub_check_vnode_listextattr(struct ucred *cred, struct vnode *vp, 1204 struct label *label, int attrnamespace) 1205{ 1206 1207 return (0); 1208} 1209 1210static int 1211stub_check_vnode_lookup(struct ucred *cred, struct vnode *dvp, 1212 struct label *dlabel, struct componentname *cnp) 1213{ 1214 1215 return (0); 1216} 1217 1218static int 1219stub_check_vnode_mmap(struct ucred *cred, struct vnode *vp, 1220 struct label *label, int prot, int flags) 1221{ 1222 1223 return (0); 1224} 1225 1226static int 1227stub_check_vnode_open(struct ucred *cred, struct vnode *vp, 1228 struct label *filelabel, int acc_mode) 1229{ 1230 1231 return (0); 1232} 1233 1234static int 1235stub_check_vnode_poll(struct ucred *active_cred, struct ucred *file_cred, 1236 struct vnode *vp, struct label *label) 1237{ 1238 1239 return (0); 1240} 1241 1242static int 1243stub_check_vnode_read(struct ucred *active_cred, struct ucred *file_cred, 1244 struct vnode *vp, struct label *label) 1245{ 1246 1247 return (0); 1248} 1249 1250static int 1251stub_check_vnode_readdir(struct ucred *cred, struct vnode *vp, 1252 struct label *dlabel) 1253{ 1254 1255 return (0); 1256} 1257 1258static int 1259stub_check_vnode_readlink(struct ucred *cred, struct vnode *vp, 1260 struct label *vnodelabel) 1261{ 1262 1263 return (0); 1264} 1265 1266static int 1267stub_check_vnode_relabel(struct ucred *cred, struct vnode *vp, 1268 struct label *vnodelabel, struct label *newlabel) 1269{ 1270 1271 return (0); 1272} 1273 1274static int 1275stub_check_vnode_rename_from(struct ucred *cred, struct vnode *dvp, 1276 struct label *dlabel, struct vnode *vp, struct label *label, 1277 struct componentname *cnp) 1278{ 1279 1280 return (0); 1281} 1282 1283static int 1284stub_check_vnode_rename_to(struct ucred *cred, struct vnode *dvp, 1285 struct label *dlabel, struct vnode *vp, struct label *label, int samedir, 1286 struct componentname *cnp) 1287{ 1288 1289 return (0); 1290} 1291 1292static int 1293stub_check_vnode_revoke(struct ucred *cred, struct vnode *vp, 1294 struct label *label) 1295{ 1296 1297 return (0); 1298} 1299 1300static int 1301stub_check_vnode_setacl(struct ucred *cred, struct vnode *vp, 1302 struct label *label, acl_type_t type, struct acl *acl) 1303{ 1304 1305 return (0); 1306} 1307 1308static int 1309stub_check_vnode_setextattr(struct ucred *cred, struct vnode *vp, 1310 struct label *label, int attrnamespace, const char *name, struct uio *uio) 1311{ 1312 1313 return (0); 1314} 1315 1316static int 1317stub_check_vnode_setflags(struct ucred *cred, struct vnode *vp, 1318 struct label *label, u_long flags) 1319{ 1320 1321 return (0); 1322} 1323 1324static int 1325stub_check_vnode_setmode(struct ucred *cred, struct vnode *vp, 1326 struct label *label, mode_t mode) 1327{ 1328 1329 return (0); 1330} 1331 1332static int 1333stub_check_vnode_setowner(struct ucred *cred, struct vnode *vp, 1334 struct label *label, uid_t uid, gid_t gid) 1335{ 1336 1337 return (0); 1338} 1339 1340static int 1341stub_check_vnode_setutimes(struct ucred *cred, struct vnode *vp, 1342 struct label *label, struct timespec atime, struct timespec mtime) 1343{ 1344 1345 return (0); 1346} 1347 1348static int 1349stub_check_vnode_stat(struct ucred *active_cred, struct ucred *file_cred, 1350 struct vnode *vp, struct label *label) 1351{ 1352 1353 return (0); 1354} 1355 1356static int 1357stub_check_vnode_write(struct ucred *active_cred, 1358 struct ucred *file_cred, struct vnode *vp, struct label *label) 1359{ 1360 1361 return (0); 1362} 1363 1364static int 1365stub_priv_check(struct ucred *cred, int priv) 1366{ 1367 1368 return (0); 1369} 1370 1371static int 1372stub_priv_grant(struct ucred *cred, int priv) 1373{ 1374 1375 return (EPERM); 1376} 1377 1378static struct mac_policy_ops mac_stub_ops = 1379{ 1380 .mpo_destroy = stub_destroy, 1381 .mpo_init = stub_init, 1382 .mpo_syscall = stub_syscall, 1383 .mpo_init_bpfdesc_label = stub_init_label, 1384 .mpo_init_cred_label = stub_init_label, 1385 .mpo_init_devfsdirent_label = stub_init_label, 1386 .mpo_init_ifnet_label = stub_init_label, 1387 .mpo_init_inpcb_label = stub_init_label_waitcheck, 1388 .mpo_init_sysv_msgmsg_label = stub_init_label, 1389 .mpo_init_sysv_msgqueue_label = stub_init_label, 1390 .mpo_init_sysv_sem_label = stub_init_label, 1391 .mpo_init_sysv_shm_label = stub_init_label, 1392 .mpo_init_ipq_label = stub_init_label_waitcheck, 1393 .mpo_init_mbuf_label = stub_init_label_waitcheck, 1394 .mpo_init_mount_label = stub_init_label, 1395 .mpo_init_mount_fs_label = stub_init_label, 1396 .mpo_init_pipe_label = stub_init_label, 1397 .mpo_init_posix_sem_label = stub_init_label, 1398 .mpo_init_socket_label = stub_init_label_waitcheck, 1399 .mpo_init_socket_peer_label = stub_init_label_waitcheck, 1400 .mpo_init_vnode_label = stub_init_label, 1401 .mpo_destroy_bpfdesc_label = stub_destroy_label, 1402 .mpo_destroy_cred_label = stub_destroy_label, 1403 .mpo_destroy_devfsdirent_label = stub_destroy_label, 1404 .mpo_destroy_ifnet_label = stub_destroy_label, 1405 .mpo_destroy_inpcb_label = stub_destroy_label, 1406 .mpo_destroy_sysv_msgmsg_label = stub_destroy_label, 1407 .mpo_destroy_sysv_msgqueue_label = stub_destroy_label, 1408 .mpo_destroy_sysv_sem_label = stub_destroy_label, 1409 .mpo_destroy_sysv_shm_label = stub_destroy_label, 1410 .mpo_destroy_ipq_label = stub_destroy_label, 1411 .mpo_destroy_mbuf_label = stub_destroy_label, 1412 .mpo_destroy_mount_label = stub_destroy_label, 1413 .mpo_destroy_mount_fs_label = stub_destroy_label, 1414 .mpo_destroy_pipe_label = stub_destroy_label, 1415 .mpo_destroy_posix_sem_label = stub_destroy_label, 1416 .mpo_destroy_socket_label = stub_destroy_label, 1417 .mpo_destroy_socket_peer_label = stub_destroy_label, 1418 .mpo_destroy_vnode_label = stub_destroy_label, 1419 .mpo_copy_cred_label = stub_copy_label, 1420 .mpo_copy_ifnet_label = stub_copy_label, 1421 .mpo_copy_mbuf_label = stub_copy_label, 1422 .mpo_copy_pipe_label = stub_copy_label, 1423 .mpo_copy_socket_label = stub_copy_label, 1424 .mpo_copy_vnode_label = stub_copy_label, 1425 .mpo_externalize_cred_label = stub_externalize_label, 1426 .mpo_externalize_ifnet_label = stub_externalize_label, 1427 .mpo_externalize_pipe_label = stub_externalize_label, 1428 .mpo_externalize_socket_label = stub_externalize_label, 1429 .mpo_externalize_socket_peer_label = stub_externalize_label, 1430 .mpo_externalize_vnode_label = stub_externalize_label, 1431 .mpo_internalize_cred_label = stub_internalize_label, 1432 .mpo_internalize_ifnet_label = stub_internalize_label, 1433 .mpo_internalize_pipe_label = stub_internalize_label, 1434 .mpo_internalize_socket_label = stub_internalize_label, 1435 .mpo_internalize_vnode_label = stub_internalize_label, 1436 .mpo_associate_vnode_devfs = stub_associate_vnode_devfs, 1437 .mpo_associate_vnode_extattr = stub_associate_vnode_extattr, 1438 .mpo_associate_vnode_singlelabel = stub_associate_vnode_singlelabel, 1439 .mpo_create_devfs_device = stub_create_devfs_device, 1440 .mpo_create_devfs_directory = stub_create_devfs_directory, 1441 .mpo_create_devfs_symlink = stub_create_devfs_symlink, 1442 .mpo_create_sysv_msgmsg = stub_create_sysv_msgmsg, 1443 .mpo_create_sysv_msgqueue = stub_create_sysv_msgqueue, 1444 .mpo_create_sysv_sem = stub_create_sysv_sem, 1445 .mpo_create_sysv_shm = stub_create_sysv_shm, 1446 .mpo_create_vnode_extattr = stub_create_vnode_extattr, 1447 .mpo_create_mount = stub_create_mount, 1448 .mpo_relabel_vnode = stub_relabel_vnode, 1449 .mpo_setlabel_vnode_extattr = stub_setlabel_vnode_extattr, 1450 .mpo_update_devfsdirent = stub_update_devfsdirent, 1451 .mpo_create_mbuf_from_socket = stub_create_mbuf_from_socket, 1452 .mpo_create_pipe = stub_create_pipe, 1453 .mpo_create_posix_sem = stub_create_posix_sem, 1454 .mpo_create_socket = stub_create_socket, 1455 .mpo_create_socket_from_socket = stub_create_socket_from_socket, 1456 .mpo_relabel_pipe = stub_relabel_pipe, 1457 .mpo_relabel_socket = stub_relabel_socket, 1458 .mpo_set_socket_peer_from_mbuf = stub_set_socket_peer_from_mbuf, 1459 .mpo_set_socket_peer_from_socket = stub_set_socket_peer_from_socket, 1460 .mpo_create_bpfdesc = stub_create_bpfdesc, 1461 .mpo_create_ifnet = stub_create_ifnet, 1462 .mpo_create_inpcb_from_socket = stub_create_inpcb_from_socket, 1463 .mpo_create_ipq = stub_create_ipq, 1464 .mpo_create_datagram_from_ipq = stub_create_datagram_from_ipq, 1465 .mpo_create_fragment = stub_create_fragment, 1466 .mpo_create_mbuf_from_inpcb = stub_create_mbuf_from_inpcb, 1467 .mpo_create_mbuf_linklayer = stub_create_mbuf_linklayer, 1468 .mpo_create_mbuf_from_bpfdesc = stub_create_mbuf_from_bpfdesc, 1469 .mpo_create_mbuf_from_ifnet = stub_create_mbuf_from_ifnet, 1470 .mpo_create_mbuf_multicast_encap = stub_create_mbuf_multicast_encap, 1471 .mpo_create_mbuf_netlayer = stub_create_mbuf_netlayer, 1472 .mpo_fragment_match = stub_fragment_match, 1473 .mpo_reflect_mbuf_icmp = stub_reflect_mbuf_icmp, 1474 .mpo_reflect_mbuf_tcp = stub_reflect_mbuf_tcp, 1475 .mpo_relabel_ifnet = stub_relabel_ifnet, 1476 .mpo_update_ipq = stub_update_ipq, 1477 .mpo_inpcb_sosetlabel = stub_inpcb_sosetlabel, 1478 .mpo_execve_transition = stub_execve_transition, 1479 .mpo_execve_will_transition = stub_execve_will_transition, 1480 .mpo_create_proc0 = stub_create_proc0, 1481 .mpo_create_proc1 = stub_create_proc1, 1482 .mpo_relabel_cred = stub_relabel_cred, 1483 .mpo_thread_userret = stub_thread_userret, 1484 .mpo_cleanup_sysv_msgmsg = stub_cleanup_sysv_msgmsg, 1485 .mpo_cleanup_sysv_msgqueue = stub_cleanup_sysv_msgqueue, 1486 .mpo_cleanup_sysv_sem = stub_cleanup_sysv_sem, 1487 .mpo_cleanup_sysv_shm = stub_cleanup_sysv_shm, 1488 .mpo_check_bpfdesc_receive = stub_check_bpfdesc_receive, 1489 .mpo_check_cred_relabel = stub_check_cred_relabel, 1490 .mpo_check_cred_visible = stub_check_cred_visible, 1491 .mpo_check_ifnet_relabel = stub_check_ifnet_relabel, 1492 .mpo_check_ifnet_transmit = stub_check_ifnet_transmit, 1493 .mpo_check_inpcb_deliver = stub_check_inpcb_deliver, 1494 .mpo_check_sysv_msgmsq = stub_check_sysv_msgmsq, 1495 .mpo_check_sysv_msgrcv = stub_check_sysv_msgrcv, 1496 .mpo_check_sysv_msgrmid = stub_check_sysv_msgrmid, 1497 .mpo_check_sysv_msqget = stub_check_sysv_msqget, 1498 .mpo_check_sysv_msqsnd = stub_check_sysv_msqsnd, 1499 .mpo_check_sysv_msqrcv = stub_check_sysv_msqrcv, 1500 .mpo_check_sysv_msqctl = stub_check_sysv_msqctl, 1501 .mpo_check_sysv_semctl = stub_check_sysv_semctl, 1502 .mpo_check_sysv_semget = stub_check_sysv_semget, 1503 .mpo_check_sysv_semop = stub_check_sysv_semop, 1504 .mpo_check_sysv_shmat = stub_check_sysv_shmat, 1505 .mpo_check_sysv_shmctl = stub_check_sysv_shmctl, 1506 .mpo_check_sysv_shmdt = stub_check_sysv_shmdt, 1507 .mpo_check_sysv_shmget = stub_check_sysv_shmget, 1508 .mpo_check_kenv_dump = stub_check_kenv_dump, 1509 .mpo_check_kenv_get = stub_check_kenv_get, 1510 .mpo_check_kenv_set = stub_check_kenv_set, 1511 .mpo_check_kenv_unset = stub_check_kenv_unset, 1512 .mpo_check_kld_load = stub_check_kld_load, 1513 .mpo_check_kld_stat = stub_check_kld_stat, 1514 .mpo_check_kld_unload = stub_check_kld_unload, 1515 .mpo_check_mount_stat = stub_check_mount_stat, 1516 .mpo_check_pipe_ioctl = stub_check_pipe_ioctl, 1517 .mpo_check_pipe_poll = stub_check_pipe_poll, 1518 .mpo_check_pipe_read = stub_check_pipe_read, 1519 .mpo_check_pipe_relabel = stub_check_pipe_relabel, 1520 .mpo_check_pipe_stat = stub_check_pipe_stat, 1521 .mpo_check_pipe_write = stub_check_pipe_write, 1522 .mpo_check_posix_sem_destroy = stub_check_posix_sem_destroy, 1523 .mpo_check_posix_sem_getvalue = stub_check_posix_sem_getvalue, 1524 .mpo_check_posix_sem_open = stub_check_posix_sem_open, 1525 .mpo_check_posix_sem_post = stub_check_posix_sem_post, 1526 .mpo_check_posix_sem_unlink = stub_check_posix_sem_unlink, 1527 .mpo_check_posix_sem_wait = stub_check_posix_sem_wait, 1528 .mpo_check_proc_debug = stub_check_proc_debug, 1529 .mpo_check_proc_sched = stub_check_proc_sched, 1530 .mpo_check_proc_setuid = stub_check_proc_setuid, 1531 .mpo_check_proc_seteuid = stub_check_proc_seteuid, 1532 .mpo_check_proc_setgid = stub_check_proc_setgid, 1533 .mpo_check_proc_setegid = stub_check_proc_setegid, 1534 .mpo_check_proc_setgroups = stub_check_proc_setgroups, 1535 .mpo_check_proc_setreuid = stub_check_proc_setreuid, 1536 .mpo_check_proc_setregid = stub_check_proc_setregid, 1537 .mpo_check_proc_setresuid = stub_check_proc_setresuid, 1538 .mpo_check_proc_setresgid = stub_check_proc_setresgid, 1539 .mpo_check_proc_signal = stub_check_proc_signal, 1540 .mpo_check_proc_wait = stub_check_proc_wait, 1541 .mpo_check_socket_accept = stub_check_socket_accept, 1542 .mpo_check_socket_bind = stub_check_socket_bind, 1543 .mpo_check_socket_connect = stub_check_socket_connect, 1544 .mpo_check_socket_create = stub_check_socket_create, 1545 .mpo_check_socket_deliver = stub_check_socket_deliver, 1546 .mpo_check_socket_listen = stub_check_socket_listen, 1547 .mpo_check_socket_poll = stub_check_socket_poll, 1548 .mpo_check_socket_receive = stub_check_socket_receive, 1549 .mpo_check_socket_relabel = stub_check_socket_relabel, 1550 .mpo_check_socket_send = stub_check_socket_send, 1551 .mpo_check_socket_stat = stub_check_socket_stat, 1552 .mpo_check_socket_visible = stub_check_socket_visible, 1553 .mpo_check_sysarch_ioperm = stub_check_sysarch_ioperm, 1554 .mpo_check_system_acct = stub_check_system_acct, 1555 .mpo_check_system_reboot = stub_check_system_reboot, 1556 .mpo_check_system_settime = stub_check_system_settime, 1557 .mpo_check_system_swapon = stub_check_system_swapon, 1558 .mpo_check_system_swapoff = stub_check_system_swapoff, 1559 .mpo_check_system_sysctl = stub_check_system_sysctl, 1560 .mpo_check_vnode_access = stub_check_vnode_access, 1561 .mpo_check_vnode_chdir = stub_check_vnode_chdir, 1562 .mpo_check_vnode_chroot = stub_check_vnode_chroot, 1563 .mpo_check_vnode_create = stub_check_vnode_create, 1564 .mpo_check_vnode_delete = stub_check_vnode_delete, 1565 .mpo_check_vnode_deleteacl = stub_check_vnode_deleteacl, 1566 .mpo_check_vnode_deleteextattr = stub_check_vnode_deleteextattr, 1567 .mpo_check_vnode_exec = stub_check_vnode_exec, 1568 .mpo_check_vnode_getacl = stub_check_vnode_getacl, 1569 .mpo_check_vnode_getextattr = stub_check_vnode_getextattr, 1570 .mpo_check_vnode_link = stub_check_vnode_link, 1571 .mpo_check_vnode_listextattr = stub_check_vnode_listextattr, 1572 .mpo_check_vnode_lookup = stub_check_vnode_lookup, 1573 .mpo_check_vnode_mmap = stub_check_vnode_mmap, 1574 .mpo_check_vnode_open = stub_check_vnode_open, 1575 .mpo_check_vnode_poll = stub_check_vnode_poll, 1576 .mpo_check_vnode_read = stub_check_vnode_read, 1577 .mpo_check_vnode_readdir = stub_check_vnode_readdir, 1578 .mpo_check_vnode_readlink = stub_check_vnode_readlink, 1579 .mpo_check_vnode_relabel = stub_check_vnode_relabel, 1580 .mpo_check_vnode_rename_from = stub_check_vnode_rename_from, 1581 .mpo_check_vnode_rename_to = stub_check_vnode_rename_to, 1582 .mpo_check_vnode_revoke = stub_check_vnode_revoke, 1583 .mpo_check_vnode_setacl = stub_check_vnode_setacl, 1584 .mpo_check_vnode_setextattr = stub_check_vnode_setextattr, 1585 .mpo_check_vnode_setflags = stub_check_vnode_setflags, 1586 .mpo_check_vnode_setmode = stub_check_vnode_setmode, 1587 .mpo_check_vnode_setowner = stub_check_vnode_setowner, 1588 .mpo_check_vnode_setutimes = stub_check_vnode_setutimes, 1589 .mpo_check_vnode_stat = stub_check_vnode_stat, 1590 .mpo_check_vnode_write = stub_check_vnode_write, 1591 .mpo_priv_check = stub_priv_check, 1592 .mpo_priv_grant = stub_priv_grant, 1593}; 1594 1595MAC_POLICY_SET(&mac_stub_ops, mac_stub, "TrustedBSD MAC/Stub", 1596 MPC_LOADTIME_FLAG_UNLOADOK, NULL); 1597