mac_stub.c revision 147785
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 147785 2005-07-05 23:39:51Z 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/mac.h> 55#include <sys/mount.h> 56#include <sys/proc.h> 57#include <sys/systm.h> 58#include <sys/sysproto.h> 59#include <sys/sysent.h> 60#include <sys/vnode.h> 61#include <sys/file.h> 62#include <sys/socket.h> 63#include <sys/socketvar.h> 64#include <sys/pipe.h> 65#include <sys/sysctl.h> 66#include <sys/msg.h> 67#include <sys/sem.h> 68#include <sys/shm.h> 69 70#include <posix4/ksem.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 <sys/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 mount *mp, struct cdev *dev, 191 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_create_root_mount(struct ucred *cred, struct mount *mp, 229 struct label *mntlabel, struct label *fslabel) 230{ 231 232} 233 234static void 235stub_relabel_vnode(struct ucred *cred, struct vnode *vp, 236 struct label *vnodelabel, struct label *label) 237{ 238 239} 240 241static int 242stub_setlabel_vnode_extattr(struct ucred *cred, struct vnode *vp, 243 struct label *vlabel, struct label *intlabel) 244{ 245 246 return (0); 247} 248 249static void 250stub_update_devfsdirent(struct mount *mp, 251 struct devfs_dirent *devfs_dirent, struct label *direntlabel, 252 struct vnode *vp, struct label *vnodelabel) 253{ 254 255} 256 257/* 258 * Labeling event operations: IPC object. 259 */ 260static void 261stub_create_mbuf_from_socket(struct socket *so, struct label *socketlabel, 262 struct mbuf *m, struct label *mbuflabel) 263{ 264 265} 266 267static void 268stub_create_socket(struct ucred *cred, struct socket *socket, 269 struct label *socketlabel) 270{ 271 272} 273 274static void 275stub_create_pipe(struct ucred *cred, struct pipepair *pp, 276 struct label *pipelabel) 277{ 278 279} 280 281static void 282stub_create_posix_sem(struct ucred *cred, struct ksem *ksemptr, 283 struct label *ks_label) 284{ 285 286} 287 288static void 289stub_create_socket_from_socket(struct socket *oldsocket, 290 struct label *oldsocketlabel, struct socket *newsocket, 291 struct label *newsocketlabel) 292{ 293 294} 295 296static void 297stub_relabel_socket(struct ucred *cred, struct socket *socket, 298 struct label *socketlabel, struct label *newlabel) 299{ 300 301} 302 303static void 304stub_relabel_pipe(struct ucred *cred, struct pipepair *pp, 305 struct label *pipelabel, struct label *newlabel) 306{ 307 308} 309 310static void 311stub_set_socket_peer_from_mbuf(struct mbuf *mbuf, struct label *mbuflabel, 312 struct socket *socket, struct label *socketpeerlabel) 313{ 314 315} 316 317static void 318stub_set_socket_peer_from_socket(struct socket *oldsocket, 319 struct label *oldsocketlabel, struct socket *newsocket, 320 struct label *newsocketpeerlabel) 321{ 322 323} 324 325/* 326 * Labeling event operations: network objects. 327 */ 328static void 329stub_create_bpfdesc(struct ucred *cred, struct bpf_d *bpf_d, 330 struct label *bpflabel) 331{ 332 333} 334 335static void 336stub_create_datagram_from_ipq(struct ipq *ipq, struct label *ipqlabel, 337 struct mbuf *datagram, struct label *datagramlabel) 338{ 339 340} 341 342static void 343stub_create_fragment(struct mbuf *datagram, struct label *datagramlabel, 344 struct mbuf *fragment, struct label *fragmentlabel) 345{ 346 347} 348 349static void 350stub_create_ifnet(struct ifnet *ifnet, struct label *ifnetlabel) 351{ 352 353} 354 355static void 356stub_create_inpcb_from_socket(struct socket *so, struct label *solabel, 357 struct inpcb *inp, struct label *inplabel) 358{ 359 360} 361 362static void 363stub_create_sysv_msgmsg(struct ucred *cred, struct msqid_kernel *msqkptr, 364 struct label *msqlabel, struct msg *msgptr, struct label *msglabel) 365{ 366 367} 368 369static void 370stub_create_sysv_msgqueue(struct ucred *cred, struct msqid_kernel *msqkptr, 371 struct label *msqlabel) 372{ 373 374} 375 376static void 377stub_create_sysv_sem(struct ucred *cred, struct semid_kernel *semakptr, 378 struct label *semalabel) 379{ 380 381} 382 383static void 384stub_create_sysv_shm(struct ucred *cred, struct shmid_kernel *shmsegptr, 385 struct label *shmalabel) 386{ 387 388} 389 390static void 391stub_create_ipq(struct mbuf *fragment, struct label *fragmentlabel, 392 struct ipq *ipq, struct label *ipqlabel) 393{ 394 395} 396 397static void 398stub_create_mbuf_from_inpcb(struct inpcb *inp, struct label *inplabel, 399 struct mbuf *m, struct label *mlabel) 400{ 401 402} 403 404static void 405stub_create_mbuf_linklayer(struct ifnet *ifnet, struct label *ifnetlabel, 406 struct mbuf *mbuf, struct label *mbuflabel) 407{ 408 409} 410 411static void 412stub_create_mbuf_from_bpfdesc(struct bpf_d *bpf_d, struct label *bpflabel, 413 struct mbuf *mbuf, struct label *mbuflabel) 414{ 415 416} 417 418static void 419stub_create_mbuf_from_ifnet(struct ifnet *ifnet, struct label *ifnetlabel, 420 struct mbuf *m, struct label *mbuflabel) 421{ 422 423} 424 425static void 426stub_create_mbuf_multicast_encap(struct mbuf *oldmbuf, 427 struct label *oldmbuflabel, struct ifnet *ifnet, struct label *ifnetlabel, 428 struct mbuf *newmbuf, struct label *newmbuflabel) 429{ 430 431} 432 433static void 434stub_create_mbuf_netlayer(struct mbuf *oldmbuf, 435 struct label *oldmbuflabel, struct mbuf *newmbuf, struct label *newmbuflabel) 436{ 437 438} 439 440static int 441stub_fragment_match(struct mbuf *fragment, struct label *fragmentlabel, 442 struct ipq *ipq, struct label *ipqlabel) 443{ 444 445 return (1); 446} 447 448static void 449stub_reflect_mbuf_icmp(struct mbuf *m, struct label *mlabel) 450{ 451 452} 453 454static void 455stub_reflect_mbuf_tcp(struct mbuf *m, struct label *mlabel) 456{ 457 458} 459 460static void 461stub_relabel_ifnet(struct ucred *cred, struct ifnet *ifnet, 462 struct label *ifnetlabel, struct label *newlabel) 463{ 464 465} 466 467static void 468stub_update_ipq(struct mbuf *fragment, struct label *fragmentlabel, 469 struct ipq *ipq, struct label *ipqlabel) 470{ 471 472} 473 474static void 475stub_inpcb_sosetlabel(struct socket *so, struct label *solabel, 476 struct inpcb *inp, struct label *inplabel) 477{ 478 479} 480 481/* 482 * Labeling event operations: processes. 483 */ 484static void 485stub_execve_transition(struct ucred *old, struct ucred *new, 486 struct vnode *vp, struct label *vnodelabel, 487 struct label *interpvnodelabel, struct image_params *imgp, 488 struct label *execlabel) 489{ 490 491} 492 493static int 494stub_execve_will_transition(struct ucred *old, struct vnode *vp, 495 struct label *vnodelabel, struct label *interpvnodelabel, 496 struct image_params *imgp, struct label *execlabel) 497{ 498 499 return (0); 500} 501 502static void 503stub_create_proc0(struct ucred *cred) 504{ 505 506} 507 508static void 509stub_create_proc1(struct ucred *cred) 510{ 511 512} 513 514static void 515stub_relabel_cred(struct ucred *cred, struct label *newlabel) 516{ 517 518} 519 520static void 521stub_thread_userret(struct thread *td) 522{ 523 524} 525 526/* 527 * Label cleanup/flush operations 528 */ 529static void 530stub_cleanup_sysv_msgmsg(struct label *msglabel) 531{ 532 533} 534 535static void 536stub_cleanup_sysv_msgqueue(struct label *msqlabel) 537{ 538 539} 540 541static void 542stub_cleanup_sysv_sem(struct label *semalabel) 543{ 544 545} 546 547static void 548stub_cleanup_sysv_shm(struct label *shmlabel) 549{ 550 551} 552 553/* 554 * Access control checks. 555 */ 556static int 557stub_check_bpfdesc_receive(struct bpf_d *bpf_d, struct label *bpflabel, 558 struct ifnet *ifnet, struct label *ifnet_label) 559{ 560 561 return (0); 562} 563 564static int 565stub_check_cred_relabel(struct ucred *cred, struct label *newlabel) 566{ 567 568 return (0); 569} 570 571static int 572stub_check_cred_visible(struct ucred *u1, struct ucred *u2) 573{ 574 575 return (0); 576} 577 578static int 579stub_check_ifnet_relabel(struct ucred *cred, struct ifnet *ifnet, 580 struct label *ifnetlabel, struct label *newlabel) 581{ 582 583 return (0); 584} 585 586static int 587stub_check_ifnet_transmit(struct ifnet *ifnet, struct label *ifnetlabel, 588 struct mbuf *m, struct label *mbuflabel) 589{ 590 591 return (0); 592} 593 594static int 595stub_check_inpcb_deliver(struct inpcb *inp, struct label *inplabel, 596 struct mbuf *m, struct label *mlabel) 597{ 598 599 return (0); 600} 601 602static int 603stub_check_sysv_msgmsq(struct ucred *cred, struct msg *msgptr, 604 struct label *msglabel, struct msqid_kernel *msqkptr, 605 struct label *msqklabel) 606{ 607 608 return (0); 609} 610 611static int 612stub_check_sysv_msgrcv(struct ucred *cred, struct msg *msgptr, 613 struct label *msglabel) 614{ 615 616 return (0); 617} 618 619 620static int 621stub_check_sysv_msgrmid(struct ucred *cred, struct msg *msgptr, 622 struct label *msglabel) 623{ 624 625 return (0); 626} 627 628 629static int 630stub_check_sysv_msqget(struct ucred *cred, struct msqid_kernel *msqkptr, 631 struct label *msqklabel) 632{ 633 634 return (0); 635} 636 637 638static int 639stub_check_sysv_msqsnd(struct ucred *cred, struct msqid_kernel *msqkptr, 640 struct label *msqklabel) 641{ 642 643 return (0); 644} 645 646static int 647stub_check_sysv_msqrcv(struct ucred *cred, struct msqid_kernel *msqkptr, 648 struct label *msqklabel) 649{ 650 651 return (0); 652} 653 654 655static int 656stub_check_sysv_msqctl(struct ucred *cred, struct msqid_kernel *msqkptr, 657 struct label *msqklabel, int cmd) 658{ 659 660 return (0); 661} 662 663 664static int 665stub_check_sysv_semctl(struct ucred *cred, struct semid_kernel *semakptr, 666 struct label *semaklabel, int cmd) 667{ 668 669 return (0); 670} 671 672static int 673stub_check_sysv_semget(struct ucred *cred, struct semid_kernel *semakptr, 674 struct label *semaklabel) 675{ 676 677 return (0); 678} 679 680 681static int 682stub_check_sysv_semop(struct ucred *cred, struct semid_kernel *semakptr, 683 struct label *semaklabel, size_t accesstype) 684{ 685 686 return (0); 687} 688 689static int 690stub_check_sysv_shmat(struct ucred *cred, struct shmid_kernel *shmsegptr, 691 struct label *shmseglabel, int shmflg) 692{ 693 694 return (0); 695} 696 697static int 698stub_check_sysv_shmctl(struct ucred *cred, struct shmid_kernel *shmsegptr, 699 struct label *shmseglabel, int cmd) 700{ 701 702 return (0); 703} 704 705static int 706stub_check_sysv_shmdt(struct ucred *cred, struct shmid_kernel *shmsegptr, 707 struct label *shmseglabel) 708{ 709 710 return (0); 711} 712 713 714static int 715stub_check_sysv_shmget(struct ucred *cred, struct shmid_kernel *shmsegptr, 716 struct label *shmseglabel, int shmflg) 717{ 718 719 return (0); 720} 721 722static int 723stub_check_kenv_dump(struct ucred *cred) 724{ 725 726 return (0); 727} 728 729static int 730stub_check_kenv_get(struct ucred *cred, char *name) 731{ 732 733 return (0); 734} 735 736static int 737stub_check_kenv_set(struct ucred *cred, char *name, char *value) 738{ 739 740 return (0); 741} 742 743static int 744stub_check_kenv_unset(struct ucred *cred, char *name) 745{ 746 747 return (0); 748} 749 750static int 751stub_check_kld_load(struct ucred *cred, struct vnode *vp, 752 struct label *vlabel) 753{ 754 755 return (0); 756} 757 758static int 759stub_check_kld_stat(struct ucred *cred) 760{ 761 762 return (0); 763} 764 765static int 766stub_check_kld_unload(struct ucred *cred) 767{ 768 769 return (0); 770} 771 772static int 773stub_check_mount_stat(struct ucred *cred, struct mount *mp, 774 struct label *mntlabel) 775{ 776 777 return (0); 778} 779 780static int 781stub_check_pipe_ioctl(struct ucred *cred, struct pipepair *pp, 782 struct label *pipelabel, unsigned long cmd, void /* caddr_t */ *data) 783{ 784 785 return (0); 786} 787 788static int 789stub_check_pipe_poll(struct ucred *cred, struct pipepair *pp, 790 struct label *pipelabel) 791{ 792 793 return (0); 794} 795 796static int 797stub_check_pipe_read(struct ucred *cred, struct pipepair *pp, 798 struct label *pipelabel) 799{ 800 801 return (0); 802} 803 804static int 805stub_check_pipe_relabel(struct ucred *cred, struct pipepair *pp, 806 struct label *pipelabel, struct label *newlabel) 807{ 808 809 return (0); 810} 811 812static int 813stub_check_pipe_stat(struct ucred *cred, struct pipepair *pp, 814 struct label *pipelabel) 815{ 816 817 return (0); 818} 819 820static int 821stub_check_pipe_write(struct ucred *cred, struct pipepair *pp, 822 struct label *pipelabel) 823{ 824 825 return (0); 826} 827 828static int 829stub_check_posix_sem_destroy(struct ucred *cred, struct ksem *ksemptr, 830 struct label *ks_label) 831{ 832 833 return (0); 834} 835 836static int 837stub_check_posix_sem_getvalue(struct ucred *cred, struct ksem *ksemptr, 838 struct label *ks_label) 839{ 840 841 return (0); 842} 843 844static int 845stub_check_posix_sem_open(struct ucred *cred, struct ksem *ksemptr, 846 struct label *ks_label) 847{ 848 849 return (0); 850} 851 852static int 853stub_check_posix_sem_post(struct ucred *cred, struct ksem *ksemptr, 854 struct label *ks_label) 855{ 856 857 return (0); 858} 859 860static int 861stub_check_posix_sem_unlink(struct ucred *cred, struct ksem *ksemptr, 862 struct label *ks_label) 863{ 864 865 return (0); 866} 867 868static int 869stub_check_posix_sem_wait(struct ucred *cred, struct ksem *ksemptr, 870 struct label *ks_label) 871{ 872 873 return (0); 874} 875 876static int 877stub_check_proc_debug(struct ucred *cred, struct proc *proc) 878{ 879 880 return (0); 881} 882 883static int 884stub_check_proc_sched(struct ucred *cred, struct proc *proc) 885{ 886 887 return (0); 888} 889 890static int 891stub_check_proc_signal(struct ucred *cred, struct proc *proc, int signum) 892{ 893 894 return (0); 895} 896 897static int 898stub_check_proc_wait(struct ucred *cred, struct proc *proc) 899{ 900 901 return (0); 902} 903 904static int 905stub_check_proc_setuid(struct ucred *cred, uid_t uid) 906{ 907 908 return (0); 909} 910 911static int 912stub_check_proc_seteuid(struct ucred *cred, uid_t euid) 913{ 914 915 return (0); 916} 917 918static int 919stub_check_proc_setgid(struct ucred *cred, gid_t gid) 920{ 921 922 return (0); 923} 924 925static int 926stub_check_proc_setegid(struct ucred *cred, gid_t egid) 927{ 928 929 return (0); 930} 931 932static int 933stub_check_proc_setgroups(struct ucred *cred, int ngroups, 934 gid_t *gidset) 935{ 936 937 return (0); 938} 939 940static int 941stub_check_proc_setreuid(struct ucred *cred, uid_t ruid, uid_t euid) 942{ 943 944 return (0); 945} 946 947static int 948stub_check_proc_setregid(struct ucred *cred, gid_t rgid, gid_t egid) 949{ 950 951 return (0); 952} 953 954static int 955stub_check_proc_setresuid(struct ucred *cred, uid_t ruid, uid_t euid, 956 uid_t suid) 957{ 958 959 return (0); 960} 961 962static int 963stub_check_proc_setresgid(struct ucred *cred, gid_t rgid, gid_t egid, 964 gid_t sgid) 965{ 966 967 return (0); 968} 969 970static int 971stub_check_socket_accept(struct ucred *cred, struct socket *socket, 972 struct label *socketlabel) 973{ 974 975 return (0); 976} 977 978static int 979stub_check_socket_bind(struct ucred *cred, struct socket *socket, 980 struct label *socketlabel, struct sockaddr *sockaddr) 981{ 982 983 return (0); 984} 985 986static int 987stub_check_socket_connect(struct ucred *cred, struct socket *socket, 988 struct label *socketlabel, struct sockaddr *sockaddr) 989{ 990 991 return (0); 992} 993 994static int 995stub_check_socket_create(struct ucred *cred, int domain, int type, 996 int protocol) 997{ 998 999 return (0); 1000} 1001 1002static int 1003stub_check_socket_deliver(struct socket *so, struct label *socketlabel, 1004 struct mbuf *m, struct label *mbuflabel) 1005{ 1006 1007 return (0); 1008} 1009 1010static int 1011stub_check_socket_listen(struct ucred *cred, struct socket *so, 1012 struct label *socketlabel) 1013{ 1014 1015 return (0); 1016} 1017 1018static int 1019stub_check_socket_poll(struct ucred *cred, struct socket *so, 1020 struct label *socketlabel) 1021{ 1022 1023 return (0); 1024} 1025 1026static int 1027stub_check_socket_receive(struct ucred *cred, struct socket *so, 1028 struct label *socketlabel) 1029{ 1030 1031 return (0); 1032} 1033 1034static int 1035stub_check_socket_relabel(struct ucred *cred, struct socket *socket, 1036 struct label *socketlabel, struct label *newlabel) 1037{ 1038 1039 return (0); 1040} 1041static int 1042stub_check_socket_send(struct ucred *cred, struct socket *so, 1043 struct label *socketlabel) 1044{ 1045 1046 return (0); 1047} 1048 1049static int 1050stub_check_socket_stat(struct ucred *cred, struct socket *so, 1051 struct label *socketlabel) 1052{ 1053 1054 return (0); 1055} 1056 1057static int 1058stub_check_socket_visible(struct ucred *cred, struct socket *socket, 1059 struct label *socketlabel) 1060{ 1061 1062 return (0); 1063} 1064 1065static int 1066stub_check_sysarch_ioperm(struct ucred *cred) 1067{ 1068 1069 return (0); 1070} 1071 1072static int 1073stub_check_system_acct(struct ucred *cred, struct vnode *vp, 1074 struct label *vlabel) 1075{ 1076 1077 return (0); 1078} 1079 1080static int 1081stub_check_system_reboot(struct ucred *cred, int how) 1082{ 1083 1084 return (0); 1085} 1086 1087static int 1088stub_check_system_settime(struct ucred *cred) 1089{ 1090 1091 return (0); 1092} 1093 1094static int 1095stub_check_system_swapon(struct ucred *cred, struct vnode *vp, 1096 struct label *label) 1097{ 1098 1099 return (0); 1100} 1101 1102static int 1103stub_check_system_swapoff(struct ucred *cred, struct vnode *vp, 1104 struct label *label) 1105{ 1106 1107 return (0); 1108} 1109 1110static int 1111stub_check_system_sysctl(struct ucred *cred, struct sysctl_oid *oidp, 1112 void *arg1, int arg2, struct sysctl_req *req) 1113{ 1114 1115 return (0); 1116} 1117 1118static int 1119stub_check_vnode_access(struct ucred *cred, struct vnode *vp, 1120 struct label *label, int acc_mode) 1121{ 1122 1123 return (0); 1124} 1125 1126static int 1127stub_check_vnode_chdir(struct ucred *cred, struct vnode *dvp, 1128 struct label *dlabel) 1129{ 1130 1131 return (0); 1132} 1133 1134static int 1135stub_check_vnode_chroot(struct ucred *cred, struct vnode *dvp, 1136 struct label *dlabel) 1137{ 1138 1139 return (0); 1140} 1141 1142static int 1143stub_check_vnode_create(struct ucred *cred, struct vnode *dvp, 1144 struct label *dlabel, struct componentname *cnp, struct vattr *vap) 1145{ 1146 1147 return (0); 1148} 1149 1150static int 1151stub_check_vnode_delete(struct ucred *cred, struct vnode *dvp, 1152 struct label *dlabel, struct vnode *vp, struct label *label, 1153 struct componentname *cnp) 1154{ 1155 1156 return (0); 1157} 1158 1159static int 1160stub_check_vnode_deleteacl(struct ucred *cred, struct vnode *vp, 1161 struct label *label, acl_type_t type) 1162{ 1163 1164 return (0); 1165} 1166 1167static int 1168stub_check_vnode_deleteextattr(struct ucred *cred, struct vnode *vp, 1169 struct label *label, int attrnamespace, const char *name) 1170{ 1171 1172 return (0); 1173} 1174 1175static int 1176stub_check_vnode_exec(struct ucred *cred, struct vnode *vp, 1177 struct label *label, struct image_params *imgp, 1178 struct label *execlabel) 1179{ 1180 1181 return (0); 1182} 1183 1184static int 1185stub_check_vnode_getacl(struct ucred *cred, struct vnode *vp, 1186 struct label *label, acl_type_t type) 1187{ 1188 1189 return (0); 1190} 1191 1192static int 1193stub_check_vnode_getextattr(struct ucred *cred, struct vnode *vp, 1194 struct label *label, int attrnamespace, const char *name, struct uio *uio) 1195{ 1196 1197 return (0); 1198} 1199 1200static int 1201stub_check_vnode_link(struct ucred *cred, struct vnode *dvp, 1202 struct label *dlabel, struct vnode *vp, struct label *label, 1203 struct componentname *cnp) 1204{ 1205 1206 return (0); 1207} 1208 1209static int 1210stub_check_vnode_listextattr(struct ucred *cred, struct vnode *vp, 1211 struct label *label, int attrnamespace) 1212{ 1213 1214 return (0); 1215} 1216 1217static int 1218stub_check_vnode_lookup(struct ucred *cred, struct vnode *dvp, 1219 struct label *dlabel, struct componentname *cnp) 1220{ 1221 1222 return (0); 1223} 1224 1225static int 1226stub_check_vnode_mmap(struct ucred *cred, struct vnode *vp, 1227 struct label *label, int prot, int flags) 1228{ 1229 1230 return (0); 1231} 1232 1233static int 1234stub_check_vnode_open(struct ucred *cred, struct vnode *vp, 1235 struct label *filelabel, int acc_mode) 1236{ 1237 1238 return (0); 1239} 1240 1241static int 1242stub_check_vnode_poll(struct ucred *active_cred, struct ucred *file_cred, 1243 struct vnode *vp, struct label *label) 1244{ 1245 1246 return (0); 1247} 1248 1249static int 1250stub_check_vnode_read(struct ucred *active_cred, struct ucred *file_cred, 1251 struct vnode *vp, struct label *label) 1252{ 1253 1254 return (0); 1255} 1256 1257static int 1258stub_check_vnode_readdir(struct ucred *cred, struct vnode *vp, 1259 struct label *dlabel) 1260{ 1261 1262 return (0); 1263} 1264 1265static int 1266stub_check_vnode_readlink(struct ucred *cred, struct vnode *vp, 1267 struct label *vnodelabel) 1268{ 1269 1270 return (0); 1271} 1272 1273static int 1274stub_check_vnode_relabel(struct ucred *cred, struct vnode *vp, 1275 struct label *vnodelabel, struct label *newlabel) 1276{ 1277 1278 return (0); 1279} 1280 1281static int 1282stub_check_vnode_rename_from(struct ucred *cred, struct vnode *dvp, 1283 struct label *dlabel, struct vnode *vp, struct label *label, 1284 struct componentname *cnp) 1285{ 1286 1287 return (0); 1288} 1289 1290static int 1291stub_check_vnode_rename_to(struct ucred *cred, struct vnode *dvp, 1292 struct label *dlabel, struct vnode *vp, struct label *label, int samedir, 1293 struct componentname *cnp) 1294{ 1295 1296 return (0); 1297} 1298 1299static int 1300stub_check_vnode_revoke(struct ucred *cred, struct vnode *vp, 1301 struct label *label) 1302{ 1303 1304 return (0); 1305} 1306 1307static int 1308stub_check_vnode_setacl(struct ucred *cred, struct vnode *vp, 1309 struct label *label, acl_type_t type, struct acl *acl) 1310{ 1311 1312 return (0); 1313} 1314 1315static int 1316stub_check_vnode_setextattr(struct ucred *cred, struct vnode *vp, 1317 struct label *label, int attrnamespace, const char *name, struct uio *uio) 1318{ 1319 1320 return (0); 1321} 1322 1323static int 1324stub_check_vnode_setflags(struct ucred *cred, struct vnode *vp, 1325 struct label *label, u_long flags) 1326{ 1327 1328 return (0); 1329} 1330 1331static int 1332stub_check_vnode_setmode(struct ucred *cred, struct vnode *vp, 1333 struct label *label, mode_t mode) 1334{ 1335 1336 return (0); 1337} 1338 1339static int 1340stub_check_vnode_setowner(struct ucred *cred, struct vnode *vp, 1341 struct label *label, uid_t uid, gid_t gid) 1342{ 1343 1344 return (0); 1345} 1346 1347static int 1348stub_check_vnode_setutimes(struct ucred *cred, struct vnode *vp, 1349 struct label *label, struct timespec atime, struct timespec mtime) 1350{ 1351 1352 return (0); 1353} 1354 1355static int 1356stub_check_vnode_stat(struct ucred *active_cred, struct ucred *file_cred, 1357 struct vnode *vp, struct label *label) 1358{ 1359 1360 return (0); 1361} 1362 1363static int 1364stub_check_vnode_write(struct ucred *active_cred, 1365 struct ucred *file_cred, struct vnode *vp, struct label *label) 1366{ 1367 1368 return (0); 1369} 1370 1371static struct mac_policy_ops mac_stub_ops = 1372{ 1373 .mpo_destroy = stub_destroy, 1374 .mpo_init = stub_init, 1375 .mpo_syscall = stub_syscall, 1376 .mpo_init_bpfdesc_label = stub_init_label, 1377 .mpo_init_cred_label = stub_init_label, 1378 .mpo_init_devfsdirent_label = stub_init_label, 1379 .mpo_init_ifnet_label = stub_init_label, 1380 .mpo_init_inpcb_label = stub_init_label_waitcheck, 1381 .mpo_init_sysv_msgmsg_label = stub_init_label, 1382 .mpo_init_sysv_msgqueue_label = stub_init_label, 1383 .mpo_init_sysv_sem_label = stub_init_label, 1384 .mpo_init_sysv_shm_label = stub_init_label, 1385 .mpo_init_ipq_label = stub_init_label_waitcheck, 1386 .mpo_init_mbuf_label = stub_init_label_waitcheck, 1387 .mpo_init_mount_label = stub_init_label, 1388 .mpo_init_mount_fs_label = stub_init_label, 1389 .mpo_init_pipe_label = stub_init_label, 1390 .mpo_init_posix_sem_label = stub_init_label, 1391 .mpo_init_socket_label = stub_init_label_waitcheck, 1392 .mpo_init_socket_peer_label = stub_init_label_waitcheck, 1393 .mpo_init_vnode_label = stub_init_label, 1394 .mpo_destroy_bpfdesc_label = stub_destroy_label, 1395 .mpo_destroy_cred_label = stub_destroy_label, 1396 .mpo_destroy_devfsdirent_label = stub_destroy_label, 1397 .mpo_destroy_ifnet_label = stub_destroy_label, 1398 .mpo_destroy_inpcb_label = stub_destroy_label, 1399 .mpo_destroy_sysv_msgmsg_label = stub_destroy_label, 1400 .mpo_destroy_sysv_msgqueue_label = stub_destroy_label, 1401 .mpo_destroy_sysv_sem_label = stub_destroy_label, 1402 .mpo_destroy_sysv_shm_label = stub_destroy_label, 1403 .mpo_destroy_ipq_label = stub_destroy_label, 1404 .mpo_destroy_mbuf_label = stub_destroy_label, 1405 .mpo_destroy_mount_label = stub_destroy_label, 1406 .mpo_destroy_mount_fs_label = stub_destroy_label, 1407 .mpo_destroy_pipe_label = stub_destroy_label, 1408 .mpo_destroy_posix_sem_label = stub_destroy_label, 1409 .mpo_destroy_socket_label = stub_destroy_label, 1410 .mpo_destroy_socket_peer_label = stub_destroy_label, 1411 .mpo_destroy_vnode_label = stub_destroy_label, 1412 .mpo_copy_cred_label = stub_copy_label, 1413 .mpo_copy_ifnet_label = stub_copy_label, 1414 .mpo_copy_mbuf_label = stub_copy_label, 1415 .mpo_copy_pipe_label = stub_copy_label, 1416 .mpo_copy_socket_label = stub_copy_label, 1417 .mpo_copy_vnode_label = stub_copy_label, 1418 .mpo_externalize_cred_label = stub_externalize_label, 1419 .mpo_externalize_ifnet_label = stub_externalize_label, 1420 .mpo_externalize_pipe_label = stub_externalize_label, 1421 .mpo_externalize_socket_label = stub_externalize_label, 1422 .mpo_externalize_socket_peer_label = stub_externalize_label, 1423 .mpo_externalize_vnode_label = stub_externalize_label, 1424 .mpo_internalize_cred_label = stub_internalize_label, 1425 .mpo_internalize_ifnet_label = stub_internalize_label, 1426 .mpo_internalize_pipe_label = stub_internalize_label, 1427 .mpo_internalize_socket_label = stub_internalize_label, 1428 .mpo_internalize_vnode_label = stub_internalize_label, 1429 .mpo_associate_vnode_devfs = stub_associate_vnode_devfs, 1430 .mpo_associate_vnode_extattr = stub_associate_vnode_extattr, 1431 .mpo_associate_vnode_singlelabel = stub_associate_vnode_singlelabel, 1432 .mpo_create_devfs_device = stub_create_devfs_device, 1433 .mpo_create_devfs_directory = stub_create_devfs_directory, 1434 .mpo_create_devfs_symlink = stub_create_devfs_symlink, 1435 .mpo_create_sysv_msgmsg = stub_create_sysv_msgmsg, 1436 .mpo_create_sysv_msgqueue = stub_create_sysv_msgqueue, 1437 .mpo_create_sysv_sem = stub_create_sysv_sem, 1438 .mpo_create_sysv_shm = stub_create_sysv_shm, 1439 .mpo_create_vnode_extattr = stub_create_vnode_extattr, 1440 .mpo_create_mount = stub_create_mount, 1441 .mpo_create_root_mount = stub_create_root_mount, 1442 .mpo_relabel_vnode = stub_relabel_vnode, 1443 .mpo_setlabel_vnode_extattr = stub_setlabel_vnode_extattr, 1444 .mpo_update_devfsdirent = stub_update_devfsdirent, 1445 .mpo_create_mbuf_from_socket = stub_create_mbuf_from_socket, 1446 .mpo_create_pipe = stub_create_pipe, 1447 .mpo_create_posix_sem = stub_create_posix_sem, 1448 .mpo_create_socket = stub_create_socket, 1449 .mpo_create_socket_from_socket = stub_create_socket_from_socket, 1450 .mpo_relabel_pipe = stub_relabel_pipe, 1451 .mpo_relabel_socket = stub_relabel_socket, 1452 .mpo_set_socket_peer_from_mbuf = stub_set_socket_peer_from_mbuf, 1453 .mpo_set_socket_peer_from_socket = stub_set_socket_peer_from_socket, 1454 .mpo_create_bpfdesc = stub_create_bpfdesc, 1455 .mpo_create_ifnet = stub_create_ifnet, 1456 .mpo_create_inpcb_from_socket = stub_create_inpcb_from_socket, 1457 .mpo_create_ipq = stub_create_ipq, 1458 .mpo_create_datagram_from_ipq = stub_create_datagram_from_ipq, 1459 .mpo_create_fragment = stub_create_fragment, 1460 .mpo_create_ipq = stub_create_ipq, 1461 .mpo_create_mbuf_from_inpcb = stub_create_mbuf_from_inpcb, 1462 .mpo_create_mbuf_linklayer = stub_create_mbuf_linklayer, 1463 .mpo_create_mbuf_from_bpfdesc = stub_create_mbuf_from_bpfdesc, 1464 .mpo_create_mbuf_from_ifnet = stub_create_mbuf_from_ifnet, 1465 .mpo_create_mbuf_multicast_encap = stub_create_mbuf_multicast_encap, 1466 .mpo_create_mbuf_netlayer = stub_create_mbuf_netlayer, 1467 .mpo_fragment_match = stub_fragment_match, 1468 .mpo_reflect_mbuf_icmp = stub_reflect_mbuf_icmp, 1469 .mpo_reflect_mbuf_tcp = stub_reflect_mbuf_tcp, 1470 .mpo_relabel_ifnet = stub_relabel_ifnet, 1471 .mpo_update_ipq = stub_update_ipq, 1472 .mpo_inpcb_sosetlabel = stub_inpcb_sosetlabel, 1473 .mpo_execve_transition = stub_execve_transition, 1474 .mpo_execve_will_transition = stub_execve_will_transition, 1475 .mpo_create_proc0 = stub_create_proc0, 1476 .mpo_create_proc1 = stub_create_proc1, 1477 .mpo_relabel_cred = stub_relabel_cred, 1478 .mpo_thread_userret = stub_thread_userret, 1479 .mpo_cleanup_sysv_msgmsg = stub_cleanup_sysv_msgmsg, 1480 .mpo_cleanup_sysv_msgqueue = stub_cleanup_sysv_msgqueue, 1481 .mpo_cleanup_sysv_sem = stub_cleanup_sysv_sem, 1482 .mpo_cleanup_sysv_shm = stub_cleanup_sysv_shm, 1483 .mpo_check_bpfdesc_receive = stub_check_bpfdesc_receive, 1484 .mpo_check_cred_relabel = stub_check_cred_relabel, 1485 .mpo_check_cred_visible = stub_check_cred_visible, 1486 .mpo_check_ifnet_relabel = stub_check_ifnet_relabel, 1487 .mpo_check_ifnet_transmit = stub_check_ifnet_transmit, 1488 .mpo_check_inpcb_deliver = stub_check_inpcb_deliver, 1489 .mpo_check_sysv_msgmsq = stub_check_sysv_msgmsq, 1490 .mpo_check_sysv_msgrcv = stub_check_sysv_msgrcv, 1491 .mpo_check_sysv_msgrmid = stub_check_sysv_msgrmid, 1492 .mpo_check_sysv_msqget = stub_check_sysv_msqget, 1493 .mpo_check_sysv_msqsnd = stub_check_sysv_msqsnd, 1494 .mpo_check_sysv_msqrcv = stub_check_sysv_msqrcv, 1495 .mpo_check_sysv_msqctl = stub_check_sysv_msqctl, 1496 .mpo_check_sysv_semctl = stub_check_sysv_semctl, 1497 .mpo_check_sysv_semget = stub_check_sysv_semget, 1498 .mpo_check_sysv_semop = stub_check_sysv_semop, 1499 .mpo_check_sysv_shmat = stub_check_sysv_shmat, 1500 .mpo_check_sysv_shmctl = stub_check_sysv_shmctl, 1501 .mpo_check_sysv_shmdt = stub_check_sysv_shmdt, 1502 .mpo_check_sysv_shmget = stub_check_sysv_shmget, 1503 .mpo_check_kenv_dump = stub_check_kenv_dump, 1504 .mpo_check_kenv_get = stub_check_kenv_get, 1505 .mpo_check_kenv_set = stub_check_kenv_set, 1506 .mpo_check_kenv_unset = stub_check_kenv_unset, 1507 .mpo_check_kld_load = stub_check_kld_load, 1508 .mpo_check_kld_stat = stub_check_kld_stat, 1509 .mpo_check_kld_unload = stub_check_kld_unload, 1510 .mpo_check_mount_stat = stub_check_mount_stat, 1511 .mpo_check_pipe_ioctl = stub_check_pipe_ioctl, 1512 .mpo_check_pipe_poll = stub_check_pipe_poll, 1513 .mpo_check_pipe_read = stub_check_pipe_read, 1514 .mpo_check_pipe_relabel = stub_check_pipe_relabel, 1515 .mpo_check_pipe_stat = stub_check_pipe_stat, 1516 .mpo_check_pipe_write = stub_check_pipe_write, 1517 .mpo_check_posix_sem_destroy = stub_check_posix_sem_destroy, 1518 .mpo_check_posix_sem_getvalue = stub_check_posix_sem_getvalue, 1519 .mpo_check_posix_sem_open = stub_check_posix_sem_open, 1520 .mpo_check_posix_sem_post = stub_check_posix_sem_post, 1521 .mpo_check_posix_sem_unlink = stub_check_posix_sem_unlink, 1522 .mpo_check_posix_sem_wait = stub_check_posix_sem_wait, 1523 .mpo_check_proc_debug = stub_check_proc_debug, 1524 .mpo_check_proc_sched = stub_check_proc_sched, 1525 .mpo_check_proc_setuid = stub_check_proc_setuid, 1526 .mpo_check_proc_seteuid = stub_check_proc_seteuid, 1527 .mpo_check_proc_setgid = stub_check_proc_setgid, 1528 .mpo_check_proc_setegid = stub_check_proc_setegid, 1529 .mpo_check_proc_setgroups = stub_check_proc_setgroups, 1530 .mpo_check_proc_setreuid = stub_check_proc_setreuid, 1531 .mpo_check_proc_setregid = stub_check_proc_setregid, 1532 .mpo_check_proc_setresuid = stub_check_proc_setresuid, 1533 .mpo_check_proc_setresgid = stub_check_proc_setresgid, 1534 .mpo_check_proc_signal = stub_check_proc_signal, 1535 .mpo_check_proc_wait = stub_check_proc_wait, 1536 .mpo_check_socket_accept = stub_check_socket_accept, 1537 .mpo_check_socket_bind = stub_check_socket_bind, 1538 .mpo_check_socket_connect = stub_check_socket_connect, 1539 .mpo_check_socket_create = stub_check_socket_create, 1540 .mpo_check_socket_deliver = stub_check_socket_deliver, 1541 .mpo_check_socket_listen = stub_check_socket_listen, 1542 .mpo_check_socket_poll = stub_check_socket_poll, 1543 .mpo_check_socket_receive = stub_check_socket_receive, 1544 .mpo_check_socket_relabel = stub_check_socket_relabel, 1545 .mpo_check_socket_send = stub_check_socket_send, 1546 .mpo_check_socket_stat = stub_check_socket_stat, 1547 .mpo_check_socket_visible = stub_check_socket_visible, 1548 .mpo_check_sysarch_ioperm = stub_check_sysarch_ioperm, 1549 .mpo_check_system_acct = stub_check_system_acct, 1550 .mpo_check_system_reboot = stub_check_system_reboot, 1551 .mpo_check_system_settime = stub_check_system_settime, 1552 .mpo_check_system_swapon = stub_check_system_swapon, 1553 .mpo_check_system_swapoff = stub_check_system_swapoff, 1554 .mpo_check_system_sysctl = stub_check_system_sysctl, 1555 .mpo_check_vnode_access = stub_check_vnode_access, 1556 .mpo_check_vnode_chdir = stub_check_vnode_chdir, 1557 .mpo_check_vnode_chroot = stub_check_vnode_chroot, 1558 .mpo_check_vnode_create = stub_check_vnode_create, 1559 .mpo_check_vnode_delete = stub_check_vnode_delete, 1560 .mpo_check_vnode_deleteacl = stub_check_vnode_deleteacl, 1561 .mpo_check_vnode_deleteextattr = stub_check_vnode_deleteextattr, 1562 .mpo_check_vnode_exec = stub_check_vnode_exec, 1563 .mpo_check_vnode_getacl = stub_check_vnode_getacl, 1564 .mpo_check_vnode_getextattr = stub_check_vnode_getextattr, 1565 .mpo_check_vnode_link = stub_check_vnode_link, 1566 .mpo_check_vnode_listextattr = stub_check_vnode_listextattr, 1567 .mpo_check_vnode_lookup = stub_check_vnode_lookup, 1568 .mpo_check_vnode_mmap = stub_check_vnode_mmap, 1569 .mpo_check_vnode_open = stub_check_vnode_open, 1570 .mpo_check_vnode_poll = stub_check_vnode_poll, 1571 .mpo_check_vnode_read = stub_check_vnode_read, 1572 .mpo_check_vnode_readdir = stub_check_vnode_readdir, 1573 .mpo_check_vnode_readlink = stub_check_vnode_readlink, 1574 .mpo_check_vnode_relabel = stub_check_vnode_relabel, 1575 .mpo_check_vnode_rename_from = stub_check_vnode_rename_from, 1576 .mpo_check_vnode_rename_to = stub_check_vnode_rename_to, 1577 .mpo_check_vnode_revoke = stub_check_vnode_revoke, 1578 .mpo_check_vnode_setacl = stub_check_vnode_setacl, 1579 .mpo_check_vnode_setextattr = stub_check_vnode_setextattr, 1580 .mpo_check_vnode_setflags = stub_check_vnode_setflags, 1581 .mpo_check_vnode_setmode = stub_check_vnode_setmode, 1582 .mpo_check_vnode_setowner = stub_check_vnode_setowner, 1583 .mpo_check_vnode_setutimes = stub_check_vnode_setutimes, 1584 .mpo_check_vnode_stat = stub_check_vnode_stat, 1585 .mpo_check_vnode_write = stub_check_vnode_write, 1586}; 1587 1588MAC_POLICY_SET(&mac_stub_ops, mac_stub, "TrustedBSD MAC/Stub", 1589 MPC_LOADTIME_FLAG_UNLOADOK, NULL); 1590