security/dummy.c

   1 /*
   2  * Stub functions for the default security function pointers in case no
   3  * security model is loaded.
   4  *
   5  * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
   6  * Copyright (C) 2001-2002  Greg Kroah-Hartman <greg@kroah.com>
   7  * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
   8  *
   9  *      This program is free software; you can redistribute it and/or modify
  10  *      it under the terms of the GNU General Public License as published by
  11  *      the Free Software Foundation; either version 2 of the License, or
  12  *      (at your option) any later version.
  13  */
  14
  15 #undef DEBUG
  16
  17 #include <linux/config.h>
  18 #include <linux/module.h>
  19 #include <linux/kernel.h>
  20 #include <linux/mman.h>
  21 #include <linux/pagemap.h>
  22 #include <linux/swap.h>
  23 #include <linux/security.h>
  24 #include <linux/skbuff.h>
  25 #include <linux/netlink.h>
  26 #include <net/sock.h>
  27 #include <linux/xattr.h>
  28 #include <linux/hugetlb.h>
  29 #include <linux/ptrace.h>
  30 #include <linux/file.h>
  31
  32 static int dummy_ptrace (struct task_struct *parent, struct task_struct *child)
  33 {
  34         return 0;
  35 }
  36
  37 static int dummy_capget (struct task_struct *target, kernel_cap_t * effective,
  38                          kernel_cap_t * inheritable, kernel_cap_t * permitted)
  39 {
  40         *effective = *inheritable = *permitted = 0;
  41         if (!issecure(SECURE_NOROOT)) {
  42                 if (target->euid == 0) {
  43                         *permitted |= (~0 & ~CAP_FS_MASK);
  44                         *effective |= (~0 & ~CAP_TO_MASK(CAP_SETPCAP) & ~CAP_FS_MASK);
  45                 }
  46                 if (target->fsuid == 0) {
  47                         *permitted |= CAP_FS_MASK;
  48                         *effective |= CAP_FS_MASK;
  49                 }
  50         }
  51         return 0;
  52 }
  53
  54 static int dummy_capset_check (struct task_struct *target,
  55                                kernel_cap_t * effective,
  56                                kernel_cap_t * inheritable,
  57                                kernel_cap_t * permitted)
  58 {
  59         return -EPERM;
  60 }
  61
  62 static void dummy_capset_set (struct task_struct *target,
  63                               kernel_cap_t * effective,
  64                               kernel_cap_t * inheritable,
  65                               kernel_cap_t * permitted)
  66 {
  67         return;
  68 }
  69
  70 static int dummy_acct (struct file *file)
  71 {
  72         return 0;
  73 }
  74
  75 static int dummy_capable (struct task_struct *tsk, int cap)
  76 {
  77         if (cap_raised (tsk->cap_effective, cap))
  78                 return 0;
  79         return -EPERM;
  80 }
  81
  82 static int dummy_sysctl (ctl_table * table, int op)
  83 {
  84         return 0;
  85 }
  86
  87 static int dummy_quotactl (int cmds, int type, int id, struct super_block *sb)
  88 {
  89         return 0;
  90 }
  91
  92 static int dummy_quota_on (struct dentry *dentry)
  93 {
  94         return 0;
  95 }
  96
  97 static int dummy_syslog (int type)
  98 {
  99         if ((type != 3 && type != 10) && current->euid)
 100                 return -EPERM;
 101         return 0;
 102 }
 103
 104 static int dummy_settime(struct timespec *ts, struct timezone *tz)
 105 {
 106         if (!capable(CAP_SYS_TIME))
 107                 return -EPERM;
 108         return 0;
 109 }
 110
 111 static int dummy_vm_enough_memory(long pages)
 112 {
 113         int cap_sys_admin = 0;
 114
 115         if (dummy_capable(current, CAP_SYS_ADMIN) == 0)
 116                 cap_sys_admin = 1;
 117         return __vm_enough_memory(pages, cap_sys_admin);
 118 }
 119
 120 static int dummy_bprm_alloc_security (struct linux_binprm *bprm)
 121 {
 122         return 0;
 123 }
 124
 125 static void dummy_bprm_free_security (struct linux_binprm *bprm)
 126 {
 127         return;
 128 }
 129
 130 static void dummy_bprm_apply_creds (struct linux_binprm *bprm, int unsafe)
 131 {
 132         if (bprm->e_uid != current->uid || bprm->e_gid != current->gid) {
 133                 current->mm->dumpable = suid_dumpable;
 134
 135                 if ((unsafe & ~LSM_UNSAFE_PTRACE_CAP) && !capable(CAP_SETUID)) {
 136                         bprm->e_uid = current->uid;
 137                         bprm->e_gid = current->gid;
 138                 }
 139         }
 140
 141         current->suid = current->euid = current->fsuid = bprm->e_uid;
 142         current->sgid = current->egid = current->fsgid = bprm->e_gid;
 143
 144         dummy_capget(current, &current->cap_effective, &current->cap_inheritable, &current->cap_permitted);
 145 }
 146
 147 static void dummy_bprm_post_apply_creds (struct linux_binprm *bprm)
 148 {
 149         return;
 150 }
 151
 152 static int dummy_bprm_set_security (struct linux_binprm *bprm)
 153 {
 154         return 0;
 155 }
 156
 157 static int dummy_bprm_check_security (struct linux_binprm *bprm)
 158 {
 159         return 0;
 160 }
 161
 162 static int dummy_bprm_secureexec (struct linux_binprm *bprm)
 163 {
 164         /* The new userland will simply use the value provided
 165            in the AT_SECURE field to decide whether secure mode
 166            is required.  Hence, this logic is required to preserve
 167            the legacy decision algorithm used by the old userland. */
 168         return (current->euid != current->uid ||
 169                 current->egid != current->gid);
 170 }
 171
 172 static int dummy_sb_alloc_security (struct super_block *sb)
 173 {
 174         return 0;
 175 }
 176
 177 static void dummy_sb_free_security (struct super_block *sb)
 178 {
 179         return;
 180 }
 181
 182 static int dummy_sb_copy_data (struct file_system_type *type,
 183                                void *orig, void *copy)
 184 {
 185         return 0;
 186 }
 187
 188 static int dummy_sb_kern_mount (struct super_block *sb, void *data)
 189 {
 190         return 0;
 191 }
 192
 193 static int dummy_sb_statfs (struct super_block *sb)
 194 {
 195         return 0;
 196 }
 197
 198 static int dummy_sb_mount (char *dev_name, struct nameidata *nd, char *type,
 199                            unsigned long flags, void *data)
 200 {
 201         return 0;
 202 }
 203
 204 static int dummy_sb_check_sb (struct vfsmount *mnt, struct nameidata *nd)
 205 {
 206         return 0;
 207 }
 208
 209 static int dummy_sb_umount (struct vfsmount *mnt, int flags)
 210 {
 211         return 0;
 212 }
 213
 214 static void dummy_sb_umount_close (struct vfsmount *mnt)
 215 {
 216         return;
 217 }
 218
 219 static void dummy_sb_umount_busy (struct vfsmount *mnt)
 220 {
 221         return;
 222 }
 223
 224 static void dummy_sb_post_remount (struct vfsmount *mnt, unsigned long flags,
 225                                    void *data)
 226 {
 227         return;
 228 }
 229
 230
 231 static void dummy_sb_post_mountroot (void)
 232 {
 233         return;
 234 }
 235
 236 static void dummy_sb_post_addmount (struct vfsmount *mnt, struct nameidata *nd)
 237 {
 238         return;
 239 }
 240
 241 static int dummy_sb_pivotroot (struct nameidata *old_nd, struct nameidata *new_nd)
 242 {
 243         return 0;
 244 }
 245
 246 static void dummy_sb_post_pivotroot (struct nameidata *old_nd, struct nameidata *new_nd)
 247 {
 248         return;
 249 }
 250
 251 static int dummy_inode_alloc_security (struct inode *inode)
 252 {
 253         return 0;
 254 }
 255
 256 static void dummy_inode_free_security (struct inode *inode)
 257 {
 258         return;
 259 }
 260
 261 static int dummy_inode_init_security (struct inode *inode, struct inode *dir,
 262                                       char **name, void **value, size_t *len)
 263 {
 264         return -EOPNOTSUPP;
 265 }
 266
 267 static int dummy_inode_create (struct inode *inode, struct dentry *dentry,
 268                                int mask)
 269 {
 270         return 0;
 271 }
 272
 273 static int dummy_inode_link (struct dentry *old_dentry, struct inode *inode,
 274                              struct dentry *new_dentry)
 275 {
 276         return 0;
 277 }
 278
 279 static int dummy_inode_unlink (struct inode *inode, struct dentry *dentry)
 280 {
 281         return 0;
 282 }
 283
 284 static int dummy_inode_symlink (struct inode *inode, struct dentry *dentry,
 285                                 const char *name)
 286 {
 287         return 0;
 288 }
 289
 290 static int dummy_inode_mkdir (struct inode *inode, struct dentry *dentry,
 291                               int mask)
 292 {
 293         return 0;
 294 }
 295
 296 static int dummy_inode_rmdir (struct inode *inode, struct dentry *dentry)
 297 {
 298         return 0;
 299 }
 300
 301 static int dummy_inode_mknod (struct inode *inode, struct dentry *dentry,
 302                               int mode, dev_t dev)
 303 {
 304         return 0;
 305 }
 306
 307 static int dummy_inode_rename (struct inode *old_inode,
 308                                struct dentry *old_dentry,
 309                                struct inode *new_inode,
 310                                struct dentry *new_dentry)
 311 {
 312         return 0;
 313 }
 314
 315 static int dummy_inode_readlink (struct dentry *dentry)
 316 {
 317         return 0;
 318 }
 319
 320 static int dummy_inode_follow_link (struct dentry *dentry,
 321                                     struct nameidata *nameidata)
 322 {
 323         return 0;
 324 }
 325
 326 static int dummy_inode_permission (struct inode *inode, int mask, struct nameidata *nd)
 327 {
 328         return 0;
 329 }
 330
 331 static int dummy_inode_setattr (struct dentry *dentry, struct iattr *iattr)
 332 {
 333         return 0;
 334 }
 335
 336 static int dummy_inode_getattr (struct vfsmount *mnt, struct dentry *dentry)
 337 {
 338         return 0;
 339 }
 340
 341 static void dummy_inode_delete (struct inode *ino)
 342 {
 343         return;
 344 }
 345
 346 static int dummy_inode_setxattr (struct dentry *dentry, char *name, void *value,
 347                                 size_t size, int flags)
 348 {
 349         if (!strncmp(name, XATTR_SECURITY_PREFIX,
 350                      sizeof(XATTR_SECURITY_PREFIX) - 1) &&
 351             !capable(CAP_SYS_ADMIN))
 352                 return -EPERM;
 353         return 0;
 354 }
 355
 356 static void dummy_inode_post_setxattr (struct dentry *dentry, char *name, void *value,
 357                                        size_t size, int flags)
 358 {
 359 }
 360
 361 static int dummy_inode_getxattr (struct dentry *dentry, char *name)
 362 {
 363         return 0;
 364 }
 365
 366 static int dummy_inode_listxattr (struct dentry *dentry)
 367 {
 368         return 0;
 369 }
 370
 371 static int dummy_inode_removexattr (struct dentry *dentry, char *name)
 372 {
 373         if (!strncmp(name, XATTR_SECURITY_PREFIX,
 374                      sizeof(XATTR_SECURITY_PREFIX) - 1) &&
 375             !capable(CAP_SYS_ADMIN))
 376                 return -EPERM;
 377         return 0;
 378 }
 379
 380 static int dummy_inode_getsecurity(struct inode *inode, const char *name, void *buffer, size_t size)
 381 {
 382         return -EOPNOTSUPP;
 383 }
 384
 385 static int dummy_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
 386 {
 387         return -EOPNOTSUPP;
 388 }
 389
 390 static int dummy_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
 391 {
 392         return 0;
 393 }
 394
 395 static int dummy_file_permission (struct file *file, int mask)
 396 {
 397         return 0;
 398 }
 399
 400 static int dummy_file_alloc_security (struct file *file)
 401 {
 402         return 0;
 403 }
 404
 405 static void dummy_file_free_security (struct file *file)
 406 {
 407         return;
 408 }
 409
 410 static int dummy_file_ioctl (struct file *file, unsigned int command,
 411                              unsigned long arg)
 412 {
 413         return 0;
 414 }
 415
 416 static int dummy_file_mmap (struct file *file, unsigned long reqprot,
 417                             unsigned long prot,
 418                             unsigned long flags)
 419 {
 420         return 0;
 421 }
 422
 423 static int dummy_file_mprotect (struct vm_area_struct *vma,
 424                                 unsigned long reqprot,
 425                                 unsigned long prot)
 426 {
 427         return 0;
 428 }
 429
 430 static int dummy_file_lock (struct file *file, unsigned int cmd)
 431 {
 432         return 0;
 433 }
 434
 435 static int dummy_file_fcntl (struct file *file, unsigned int cmd,
 436                              unsigned long arg)
 437 {
 438         return 0;
 439 }
 440
 441 static int dummy_file_set_fowner (struct file *file)
 442 {
 443         return 0;
 444 }
 445
 446 static int dummy_file_send_sigiotask (struct task_struct *tsk,
 447                                       struct fown_struct *fown, int sig)
 448 {
 449         return 0;
 450 }
 451
 452 static int dummy_file_receive (struct file *file)
 453 {
 454         return 0;
 455 }
 456
 457 static int dummy_task_create (unsigned long clone_flags)
 458 {
 459         return 0;
 460 }
 461
 462 static int dummy_task_alloc_security (struct task_struct *p)
 463 {
 464         return 0;
 465 }
 466
 467 static void dummy_task_free_security (struct task_struct *p)
 468 {
 469         return;
 470 }
 471
 472 static int dummy_task_setuid (uid_t id0, uid_t id1, uid_t id2, int flags)
 473 {
 474         return 0;
 475 }
 476
 477 static int dummy_task_post_setuid (uid_t id0, uid_t id1, uid_t id2, int flags)
 478 {
 479         dummy_capget(current, &current->cap_effective, &current->cap_inheritable, &current->cap_permitted);
 480         return 0;
 481 }
 482
 483 static int dummy_task_setgid (gid_t id0, gid_t id1, gid_t id2, int flags)
 484 {
 485         return 0;
 486 }
 487
 488 static int dummy_task_setpgid (struct task_struct *p, pid_t pgid)
 489 {
 490         return 0;
 491 }
 492
 493 static int dummy_task_getpgid (struct task_struct *p)
 494 {
 495         return 0;
 496 }
 497
 498 static int dummy_task_getsid (struct task_struct *p)
 499 {
 500         return 0;
 501 }
 502
 503 static int dummy_task_setgroups (struct group_info *group_info)
 504 {
 505         return 0;
 506 }
 507
 508 static int dummy_task_setnice (struct task_struct *p, int nice)
 509 {
 510         return 0;
 511 }
 512
 513 static int dummy_task_setrlimit (unsigned int resource, struct rlimit *new_rlim)
 514 {
 515         return 0;
 516 }
 517
 518 static int dummy_task_setscheduler (struct task_struct *p, int policy,
 519                                     struct sched_param *lp)
 520 {
 521         return 0;
 522 }
 523
 524 static int dummy_task_getscheduler (struct task_struct *p)
 525 {
 526         return 0;
 527 }
 528
 529 static int dummy_task_wait (struct task_struct *p)
 530 {
 531         return 0;
 532 }
 533
 534 static int dummy_task_kill (struct task_struct *p, struct siginfo *info,
 535                             int sig)
 536 {
 537         return 0;
 538 }
 539
 540 static int dummy_task_prctl (int option, unsigned long arg2, unsigned long arg3,
 541                              unsigned long arg4, unsigned long arg5)
 542 {
 543         return 0;
 544 }
 545
 546 static void dummy_task_reparent_to_init (struct task_struct *p)
 547 {
 548         p->euid = p->fsuid = 0;
 549         return;
 550 }
 551
 552 static void dummy_task_to_inode(struct task_struct *p, struct inode *inode)
 553 { }
 554
 555 static int dummy_ipc_permission (struct kern_ipc_perm *ipcp, short flag)
 556 {
 557         return 0;
 558 }
 559
 560 static int dummy_msg_msg_alloc_security (struct msg_msg *msg)
 561 {
 562         return 0;
 563 }
 564
 565 static void dummy_msg_msg_free_security (struct msg_msg *msg)
 566 {
 567         return;
 568 }
 569
 570 static int dummy_msg_queue_alloc_security (struct msg_queue *msq)
 571 {
 572         return 0;
 573 }
 574
 575 static void dummy_msg_queue_free_security (struct msg_queue *msq)
 576 {
 577         return;
 578 }
 579
 580 static int dummy_msg_queue_associate (struct msg_queue *msq,
 581                                       int msqflg)
 582 {
 583         return 0;
 584 }
 585
 586 static int dummy_msg_queue_msgctl (struct msg_queue *msq, int cmd)
 587 {
 588         return 0;
 589 }
 590
 591 static int dummy_msg_queue_msgsnd (struct msg_queue *msq, struct msg_msg *msg,
 592                                    int msgflg)
 593 {
 594         return 0;
 595 }
 596
 597 static int dummy_msg_queue_msgrcv (struct msg_queue *msq, struct msg_msg *msg,
 598                                    struct task_struct *target, long type,
 599                                    int mode)
 600 {
 601         return 0;
 602 }
 603
 604 static int dummy_shm_alloc_security (struct shmid_kernel *shp)
 605 {
 606         return 0;
 607 }
 608
 609 static void dummy_shm_free_security (struct shmid_kernel *shp)
 610 {
 611         return;
 612 }
 613
 614 static int dummy_shm_associate (struct shmid_kernel *shp, int shmflg)
 615 {
 616         return 0;
 617 }
 618
 619 static int dummy_shm_shmctl (struct shmid_kernel *shp, int cmd)
 620 {
 621         return 0;
 622 }
 623
 624 static int dummy_shm_shmat (struct shmid_kernel *shp, char __user *shmaddr,
 625                             int shmflg)
 626 {
 627         return 0;
 628 }
 629
 630 static int dummy_sem_alloc_security (struct sem_array *sma)
 631 {
 632         return 0;
 633 }
 634
 635 static void dummy_sem_free_security (struct sem_array *sma)
 636 {
 637         return;
 638 }
 639
 640 static int dummy_sem_associate (struct sem_array *sma, int semflg)
 641 {
 642         return 0;
 643 }
 644
 645 static int dummy_sem_semctl (struct sem_array *sma, int cmd)
 646 {
 647         return 0;
 648 }
 649
 650 static int dummy_sem_semop (struct sem_array *sma,
 651                             struct sembuf *sops, unsigned nsops, int alter)
 652 {
 653         return 0;
 654 }
 655
 656 static int dummy_netlink_send (struct sock *sk, struct sk_buff *skb)
 657 {
 658         NETLINK_CB(skb).eff_cap = current->cap_effective;
 659         return 0;
 660 }
 661
 662 static int dummy_netlink_recv (struct sk_buff *skb)
 663 {
 664         if (!cap_raised (NETLINK_CB (skb).eff_cap, CAP_NET_ADMIN))
 665                 return -EPERM;
 666         return 0;
 667 }
 668
 669 #ifdef CONFIG_SECURITY_NETWORK
 670 static int dummy_unix_stream_connect (struct socket *sock,
 671                                       struct socket *other,
 672                                       struct sock *newsk)
 673 {
 674         return 0;
 675 }
 676
 677 static int dummy_unix_may_send (struct socket *sock,
 678                                 struct socket *other)
 679 {
 680         return 0;
 681 }
 682
 683 static int dummy_socket_create (int family, int type,
 684                                 int protocol, int kern)
 685 {
 686         return 0;
 687 }
 688
 689 static void dummy_socket_post_create (struct socket *sock, int family, int type,
 690                                       int protocol, int kern)
 691 {
 692         return;
 693 }
 694
 695 static int dummy_socket_bind (struct socket *sock, struct sockaddr *address,
 696                               int addrlen)
 697 {
 698         return 0;
 699 }
 700
 701 static int dummy_socket_connect (struct socket *sock, struct sockaddr *address,
 702                                  int addrlen)
 703 {
 704         return 0;
 705 }
 706
 707 static int dummy_socket_listen (struct socket *sock, int backlog)
 708 {
 709         return 0;
 710 }
 711
 712 static int dummy_socket_accept (struct socket *sock, struct socket *newsock)
 713 {
 714         return 0;
 715 }
 716
 717 static void dummy_socket_post_accept (struct socket *sock,
 718                                       struct socket *newsock)
 719 {
 720         return;
 721 }
 722
 723 static int dummy_socket_sendmsg (struct socket *sock, struct msghdr *msg,
 724                                  int size)
 725 {
 726         return 0;
 727 }
 728
 729 static int dummy_socket_recvmsg (struct socket *sock, struct msghdr *msg,
 730                                  int size, int flags)
 731 {
 732         return 0;
 733 }
 734
 735 static int dummy_socket_getsockname (struct socket *sock)
 736 {
 737         return 0;
 738 }
 739
 740 static int dummy_socket_getpeername (struct socket *sock)
 741 {
 742         return 0;
 743 }
 744
 745 static int dummy_socket_setsockopt (struct socket *sock, int level, int optname)
 746 {
 747         return 0;
 748 }
 749
 750 static int dummy_socket_getsockopt (struct socket *sock, int level, int optname)
 751 {
 752         return 0;
 753 }
 754
 755 static int dummy_socket_shutdown (struct socket *sock, int how)
 756 {
 757         return 0;
 758 }
 759
 760 static int dummy_socket_sock_rcv_skb (struct sock *sk, struct sk_buff *skb)
 761 {
 762         return 0;
 763 }
 764
 765 static int dummy_socket_getpeersec(struct socket *sock, char __user *optval,
 766                                    int __user *optlen, unsigned len)
 767 {
 768         return -ENOPROTOOPT;
 769 }
 770
 771 static inline int dummy_sk_alloc_security (struct sock *sk, int family, gfp_t priority)
 772 {
 773         return 0;
 774 }
 775
 776 static inline void dummy_sk_free_security (struct sock *sk)
 777 {
 778 }
 779 #endif  /* CONFIG_SECURITY_NETWORK */
 780
 781 static int dummy_register_security (const char *name, struct security_operations *ops)
 782 {
 783         return -EINVAL;
 784 }
 785
 786 static int dummy_unregister_security (const char *name, struct security_operations *ops)
 787 {
 788         return -EINVAL;
 789 }
 790
 791 static void dummy_d_instantiate (struct dentry *dentry, struct inode *inode)
 792 {
 793         return;
 794 }
 795
 796 static int dummy_getprocattr(struct task_struct *p, char *name, void *value, size_t size)
 797 {
 798         return -EINVAL;
 799 }
 800
 801 static int dummy_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
 802 {
 803         return -EINVAL;
 804 }
 805
 806
 807 struct security_operations dummy_security_ops;
 808
 809 #define set_to_dummy_if_null(ops, function)                             \
 810         do {                                                            \
 811                 if (!ops->function) {                                   \
 812                         ops->function = dummy_##function;               \
 813                         pr_debug("Had to override the " #function       \
 814                                  " security operation with the dummy one.\n");\
 815                         }                                               \
 816         } while (0)
 817
 818 void security_fixup_ops (struct security_operations *ops)
 819 {
 820         set_to_dummy_if_null(ops, ptrace);
 821         set_to_dummy_if_null(ops, capget);
 822         set_to_dummy_if_null(ops, capset_check);
 823         set_to_dummy_if_null(ops, capset_set);
 824         set_to_dummy_if_null(ops, acct);
 825         set_to_dummy_if_null(ops, capable);
 826         set_to_dummy_if_null(ops, quotactl);
 827         set_to_dummy_if_null(ops, quota_on);
 828         set_to_dummy_if_null(ops, sysctl);
 829         set_to_dummy_if_null(ops, syslog);
 830         set_to_dummy_if_null(ops, settime);
 831         set_to_dummy_if_null(ops, vm_enough_memory);
 832         set_to_dummy_if_null(ops, bprm_alloc_security);
 833         set_to_dummy_if_null(ops, bprm_free_security);
 834         set_to_dummy_if_null(ops, bprm_apply_creds);
 835         set_to_dummy_if_null(ops, bprm_post_apply_creds);
 836         set_to_dummy_if_null(ops, bprm_set_security);
 837         set_to_dummy_if_null(ops, bprm_check_security);
 838         set_to_dummy_if_null(ops, bprm_secureexec);
 839         set_to_dummy_if_null(ops, sb_alloc_security);
 840         set_to_dummy_if_null(ops, sb_free_security);
 841         set_to_dummy_if_null(ops, sb_copy_data);
 842         set_to_dummy_if_null(ops, sb_kern_mount);
 843         set_to_dummy_if_null(ops, sb_statfs);
 844         set_to_dummy_if_null(ops, sb_mount);
 845         set_to_dummy_if_null(ops, sb_check_sb);
 846         set_to_dummy_if_null(ops, sb_umount);
 847         set_to_dummy_if_null(ops, sb_umount_close);
 848         set_to_dummy_if_null(ops, sb_umount_busy);
 849         set_to_dummy_if_null(ops, sb_post_remount);
 850         set_to_dummy_if_null(ops, sb_post_mountroot);
 851         set_to_dummy_if_null(ops, sb_post_addmount);
 852         set_to_dummy_if_null(ops, sb_pivotroot);
 853         set_to_dummy_if_null(ops, sb_post_pivotroot);
 854         set_to_dummy_if_null(ops, inode_alloc_security);
 855         set_to_dummy_if_null(ops, inode_free_security);
 856         set_to_dummy_if_null(ops, inode_init_security);
 857         set_to_dummy_if_null(ops, inode_create);
 858         set_to_dummy_if_null(ops, inode_link);
 859         set_to_dummy_if_null(ops, inode_unlink);
 860         set_to_dummy_if_null(ops, inode_symlink);
 861         set_to_dummy_if_null(ops, inode_mkdir);
 862         set_to_dummy_if_null(ops, inode_rmdir);
 863         set_to_dummy_if_null(ops, inode_mknod);
 864         set_to_dummy_if_null(ops, inode_rename);
 865         set_to_dummy_if_null(ops, inode_readlink);
 866         set_to_dummy_if_null(ops, inode_follow_link);
 867         set_to_dummy_if_null(ops, inode_permission);
 868         set_to_dummy_if_null(ops, inode_setattr);
 869         set_to_dummy_if_null(ops, inode_getattr);
 870         set_to_dummy_if_null(ops, inode_delete);
 871         set_to_dummy_if_null(ops, inode_setxattr);
 872         set_to_dummy_if_null(ops, inode_post_setxattr);
 873         set_to_dummy_if_null(ops, inode_getxattr);
 874         set_to_dummy_if_null(ops, inode_listxattr);
 875         set_to_dummy_if_null(ops, inode_removexattr);
 876         set_to_dummy_if_null(ops, inode_getsecurity);
 877         set_to_dummy_if_null(ops, inode_setsecurity);
 878         set_to_dummy_if_null(ops, inode_listsecurity);
 879         set_to_dummy_if_null(ops, file_permission);
 880         set_to_dummy_if_null(ops, file_alloc_security);
 881         set_to_dummy_if_null(ops, file_free_security);
 882         set_to_dummy_if_null(ops, file_ioctl);
 883         set_to_dummy_if_null(ops, file_mmap);
 884         set_to_dummy_if_null(ops, file_mprotect);
 885         set_to_dummy_if_null(ops, file_lock);
 886         set_to_dummy_if_null(ops, file_fcntl);
 887         set_to_dummy_if_null(ops, file_set_fowner);
 888         set_to_dummy_if_null(ops, file_send_sigiotask);
 889         set_to_dummy_if_null(ops, file_receive);
 890         set_to_dummy_if_null(ops, task_create);
 891         set_to_dummy_if_null(ops, task_alloc_security);
 892         set_to_dummy_if_null(ops, task_free_security);
 893         set_to_dummy_if_null(ops, task_setuid);
 894         set_to_dummy_if_null(ops, task_post_setuid);
 895         set_to_dummy_if_null(ops, task_setgid);
 896         set_to_dummy_if_null(ops, task_setpgid);
 897         set_to_dummy_if_null(ops, task_getpgid);
 898         set_to_dummy_if_null(ops, task_getsid);
 899         set_to_dummy_if_null(ops, task_setgroups);
 900         set_to_dummy_if_null(ops, task_setnice);
 901         set_to_dummy_if_null(ops, task_setrlimit);
 902         set_to_dummy_if_null(ops, task_setscheduler);
 903         set_to_dummy_if_null(ops, task_getscheduler);
 904         set_to_dummy_if_null(ops, task_wait);
 905         set_to_dummy_if_null(ops, task_kill);
 906         set_to_dummy_if_null(ops, task_prctl);
 907         set_to_dummy_if_null(ops, task_reparent_to_init);
 908         set_to_dummy_if_null(ops, task_to_inode);
 909         set_to_dummy_if_null(ops, ipc_permission);
 910         set_to_dummy_if_null(ops, msg_msg_alloc_security);
 911         set_to_dummy_if_null(ops, msg_msg_free_security);
 912         set_to_dummy_if_null(ops, msg_queue_alloc_security);
 913         set_to_dummy_if_null(ops, msg_queue_free_security);
 914         set_to_dummy_if_null(ops, msg_queue_associate);
 915         set_to_dummy_if_null(ops, msg_queue_msgctl);
 916         set_to_dummy_if_null(ops, msg_queue_msgsnd);
 917         set_to_dummy_if_null(ops, msg_queue_msgrcv);
 918         set_to_dummy_if_null(ops, shm_alloc_security);
 919         set_to_dummy_if_null(ops, shm_free_security);
 920         set_to_dummy_if_null(ops, shm_associate);
 921         set_to_dummy_if_null(ops, shm_shmctl);
 922         set_to_dummy_if_null(ops, shm_shmat);
 923         set_to_dummy_if_null(ops, sem_alloc_security);
 924         set_to_dummy_if_null(ops, sem_free_security);
 925         set_to_dummy_if_null(ops, sem_associate);
 926         set_to_dummy_if_null(ops, sem_semctl);
 927         set_to_dummy_if_null(ops, sem_semop);
 928         set_to_dummy_if_null(ops, netlink_send);
 929         set_to_dummy_if_null(ops, netlink_recv);
 930         set_to_dummy_if_null(ops, register_security);
 931         set_to_dummy_if_null(ops, unregister_security);
 932         set_to_dummy_if_null(ops, d_instantiate);
 933         set_to_dummy_if_null(ops, getprocattr);
 934         set_to_dummy_if_null(ops, setprocattr);
 935 #ifdef CONFIG_SECURITY_NETWORK
 936         set_to_dummy_if_null(ops, unix_stream_connect);
 937         set_to_dummy_if_null(ops, unix_may_send);
 938         set_to_dummy_if_null(ops, socket_create);
 939         set_to_dummy_if_null(ops, socket_post_create);
 940         set_to_dummy_if_null(ops, socket_bind);
 941         set_to_dummy_if_null(ops, socket_connect);
 942         set_to_dummy_if_null(ops, socket_listen);
 943         set_to_dummy_if_null(ops, socket_accept);
 944         set_to_dummy_if_null(ops, socket_post_accept);
 945         set_to_dummy_if_null(ops, socket_sendmsg);
 946         set_to_dummy_if_null(ops, socket_recvmsg);
 947         set_to_dummy_if_null(ops, socket_getsockname);
 948         set_to_dummy_if_null(ops, socket_getpeername);
 949         set_to_dummy_if_null(ops, socket_setsockopt);
 950         set_to_dummy_if_null(ops, socket_getsockopt);
 951         set_to_dummy_if_null(ops, socket_shutdown);
 952         set_to_dummy_if_null(ops, socket_sock_rcv_skb);
 953         set_to_dummy_if_null(ops, socket_getpeersec);
 954         set_to_dummy_if_null(ops, sk_alloc_security);
 955         set_to_dummy_if_null(ops, sk_free_security);
 956 #endif  /* CONFIG_SECURITY_NETWORK */
 957 }
 958