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 = 0;
 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_create (struct inode *inode, struct dentry *dentry,
 262                                int mask)
 263 {
 264         return 0;
 265 }
 266
 267 static void dummy_inode_post_create (struct inode *inode, struct dentry *dentry,
 268                                      int mask)
 269 {
 270         return;
 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 void dummy_inode_post_link (struct dentry *old_dentry,
 280                                    struct inode *inode,
 281                                    struct dentry *new_dentry)
 282 {
 283         return;
 284 }
 285
 286 static int dummy_inode_unlink (struct inode *inode, struct dentry *dentry)
 287 {
 288         return 0;
 289 }
 290
 291 static int dummy_inode_symlink (struct inode *inode, struct dentry *dentry,
 292                                 const char *name)
 293 {
 294         return 0;
 295 }
 296
 297 static void dummy_inode_post_symlink (struct inode *inode,
 298                                       struct dentry *dentry, const char *name)
 299 {
 300         return;
 301 }
 302
 303 static int dummy_inode_mkdir (struct inode *inode, struct dentry *dentry,
 304                               int mask)
 305 {
 306         return 0;
 307 }
 308
 309 static void dummy_inode_post_mkdir (struct inode *inode, struct dentry *dentry,
 310                                     int mask)
 311 {
 312         return;
 313 }
 314
 315 static int dummy_inode_rmdir (struct inode *inode, struct dentry *dentry)
 316 {
 317         return 0;
 318 }
 319
 320 static int dummy_inode_mknod (struct inode *inode, struct dentry *dentry,
 321                               int mode, dev_t dev)
 322 {
 323         return 0;
 324 }
 325
 326 static void dummy_inode_post_mknod (struct inode *inode, struct dentry *dentry,
 327                                     int mode, dev_t dev)
 328 {
 329         return;
 330 }
 331
 332 static int dummy_inode_rename (struct inode *old_inode,
 333                                struct dentry *old_dentry,
 334                                struct inode *new_inode,
 335                                struct dentry *new_dentry)
 336 {
 337         return 0;
 338 }
 339
 340 static void dummy_inode_post_rename (struct inode *old_inode,
 341                                      struct dentry *old_dentry,
 342                                      struct inode *new_inode,
 343                                      struct dentry *new_dentry)
 344 {
 345         return;
 346 }
 347
 348 static int dummy_inode_readlink (struct dentry *dentry)
 349 {
 350         return 0;
 351 }
 352
 353 static int dummy_inode_follow_link (struct dentry *dentry,
 354                                     struct nameidata *nameidata)
 355 {
 356         return 0;
 357 }
 358
 359 static int dummy_inode_permission (struct inode *inode, int mask, struct nameidata *nd)
 360 {
 361         return 0;
 362 }
 363
 364 static int dummy_inode_setattr (struct dentry *dentry, struct iattr *iattr)
 365 {
 366         return 0;
 367 }
 368
 369 static int dummy_inode_getattr (struct vfsmount *mnt, struct dentry *dentry)
 370 {
 371         return 0;
 372 }
 373
 374 static void dummy_inode_delete (struct inode *ino)
 375 {
 376         return;
 377 }
 378
 379 static int dummy_inode_setxattr (struct dentry *dentry, char *name, void *value,
 380                                 size_t size, int flags)
 381 {
 382         if (!strncmp(name, XATTR_SECURITY_PREFIX,
 383                      sizeof(XATTR_SECURITY_PREFIX) - 1) &&
 384             !capable(CAP_SYS_ADMIN))
 385                 return -EPERM;
 386         return 0;
 387 }
 388
 389 static void dummy_inode_post_setxattr (struct dentry *dentry, char *name, void *value,
 390                                        size_t size, int flags)
 391 {
 392 }
 393
 394 static int dummy_inode_getxattr (struct dentry *dentry, char *name)
 395 {
 396         return 0;
 397 }
 398
 399 static int dummy_inode_listxattr (struct dentry *dentry)
 400 {
 401         return 0;
 402 }
 403
 404 static int dummy_inode_removexattr (struct dentry *dentry, char *name)
 405 {
 406         if (!strncmp(name, XATTR_SECURITY_PREFIX,
 407                      sizeof(XATTR_SECURITY_PREFIX) - 1) &&
 408             !capable(CAP_SYS_ADMIN))
 409                 return -EPERM;
 410         return 0;
 411 }
 412
 413 static int dummy_inode_getsecurity(struct inode *inode, const char *name, void *buffer, size_t size)
 414 {
 415         return -EOPNOTSUPP;
 416 }
 417
 418 static int dummy_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
 419 {
 420         return -EOPNOTSUPP;
 421 }
 422
 423 static int dummy_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
 424 {
 425         return 0;
 426 }
 427
 428 static int dummy_file_permission (struct file *file, int mask)
 429 {
 430         return 0;
 431 }
 432
 433 static int dummy_file_alloc_security (struct file *file)
 434 {
 435         return 0;
 436 }
 437
 438 static void dummy_file_free_security (struct file *file)
 439 {
 440         return;
 441 }
 442
 443 static int dummy_file_ioctl (struct file *file, unsigned int command,
 444                              unsigned long arg)
 445 {
 446         return 0;
 447 }
 448
 449 static int dummy_file_mmap (struct file *file, unsigned long prot,
 450                             unsigned long flags)
 451 {
 452         return 0;
 453 }
 454
 455 static int dummy_file_mprotect (struct vm_area_struct *vma, unsigned long prot)
 456 {
 457         return 0;
 458 }
 459
 460 static int dummy_file_lock (struct file *file, unsigned int cmd)
 461 {
 462         return 0;
 463 }
 464
 465 static int dummy_file_fcntl (struct file *file, unsigned int cmd,
 466                              unsigned long arg)
 467 {
 468         return 0;
 469 }
 470
 471 static int dummy_file_set_fowner (struct file *file)
 472 {
 473         return 0;
 474 }
 475
 476 static int dummy_file_send_sigiotask (struct task_struct *tsk,
 477                                       struct fown_struct *fown, int sig)
 478 {
 479         return 0;
 480 }
 481
 482 static int dummy_file_receive (struct file *file)
 483 {
 484         return 0;
 485 }
 486
 487 static int dummy_task_create (unsigned long clone_flags)
 488 {
 489         return 0;
 490 }
 491
 492 static int dummy_task_alloc_security (struct task_struct *p)
 493 {
 494         return 0;
 495 }
 496
 497 static void dummy_task_free_security (struct task_struct *p)
 498 {
 499         return;
 500 }
 501
 502 static int dummy_task_setuid (uid_t id0, uid_t id1, uid_t id2, int flags)
 503 {
 504         return 0;
 505 }
 506
 507 static int dummy_task_post_setuid (uid_t id0, uid_t id1, uid_t id2, int flags)
 508 {
 509         dummy_capget(current, &current->cap_effective, &current->cap_inheritable, &current->cap_permitted);
 510         return 0;
 511 }
 512
 513 static int dummy_task_setgid (gid_t id0, gid_t id1, gid_t id2, int flags)
 514 {
 515         return 0;
 516 }
 517
 518 static int dummy_task_setpgid (struct task_struct *p, pid_t pgid)
 519 {
 520         return 0;
 521 }
 522
 523 static int dummy_task_getpgid (struct task_struct *p)
 524 {
 525         return 0;
 526 }
 527
 528 static int dummy_task_getsid (struct task_struct *p)
 529 {
 530         return 0;
 531 }
 532
 533 static int dummy_task_setgroups (struct group_info *group_info)
 534 {
 535         return 0;
 536 }
 537
 538 static int dummy_task_setnice (struct task_struct *p, int nice)
 539 {
 540         return 0;
 541 }
 542
 543 static int dummy_task_setrlimit (unsigned int resource, struct rlimit *new_rlim)
 544 {
 545         return 0;
 546 }
 547
 548 static int dummy_task_setscheduler (struct task_struct *p, int policy,
 549                                     struct sched_param *lp)
 550 {
 551         return 0;
 552 }
 553
 554 static int dummy_task_getscheduler (struct task_struct *p)
 555 {
 556         return 0;
 557 }
 558
 559 static int dummy_task_wait (struct task_struct *p)
 560 {
 561         return 0;
 562 }
 563
 564 static int dummy_task_kill (struct task_struct *p, struct siginfo *info,
 565                             int sig)
 566 {
 567         return 0;
 568 }
 569
 570 static int dummy_task_prctl (int option, unsigned long arg2, unsigned long arg3,
 571                              unsigned long arg4, unsigned long arg5)
 572 {
 573         return 0;
 574 }
 575
 576 static void dummy_task_reparent_to_init (struct task_struct *p)
 577 {
 578         p->euid = p->fsuid = 0;
 579         return;
 580 }
 581
 582 static void dummy_task_to_inode(struct task_struct *p, struct inode *inode)
 583 { }
 584
 585 static int dummy_ipc_permission (struct kern_ipc_perm *ipcp, short flag)
 586 {
 587         return 0;
 588 }
 589
 590 static int dummy_msg_msg_alloc_security (struct msg_msg *msg)
 591 {
 592         return 0;
 593 }
 594
 595 static void dummy_msg_msg_free_security (struct msg_msg *msg)
 596 {
 597         return;
 598 }
 599
 600 static int dummy_msg_queue_alloc_security (struct msg_queue *msq)
 601 {
 602         return 0;
 603 }
 604
 605 static void dummy_msg_queue_free_security (struct msg_queue *msq)
 606 {
 607         return;
 608 }
 609
 610 static int dummy_msg_queue_associate (struct msg_queue *msq,
 611                                       int msqflg)
 612 {
 613         return 0;
 614 }
 615
 616 static int dummy_msg_queue_msgctl (struct msg_queue *msq, int cmd)
 617 {
 618         return 0;
 619 }
 620
 621 static int dummy_msg_queue_msgsnd (struct msg_queue *msq, struct msg_msg *msg,
 622                                    int msgflg)
 623 {
 624         return 0;
 625 }
 626
 627 static int dummy_msg_queue_msgrcv (struct msg_queue *msq, struct msg_msg *msg,
 628                                    struct task_struct *target, long type,
 629                                    int mode)
 630 {
 631         return 0;
 632 }
 633
 634 static int dummy_shm_alloc_security (struct shmid_kernel *shp)
 635 {
 636         return 0;
 637 }
 638
 639 static void dummy_shm_free_security (struct shmid_kernel *shp)
 640 {
 641         return;
 642 }
 643
 644 static int dummy_shm_associate (struct shmid_kernel *shp, int shmflg)
 645 {
 646         return 0;
 647 }
 648
 649 static int dummy_shm_shmctl (struct shmid_kernel *shp, int cmd)
 650 {
 651         return 0;
 652 }
 653
 654 static int dummy_shm_shmat (struct shmid_kernel *shp, char __user *shmaddr,
 655                             int shmflg)
 656 {
 657         return 0;
 658 }
 659
 660 static int dummy_sem_alloc_security (struct sem_array *sma)
 661 {
 662         return 0;
 663 }
 664
 665 static void dummy_sem_free_security (struct sem_array *sma)
 666 {
 667         return;
 668 }
 669
 670 static int dummy_sem_associate (struct sem_array *sma, int semflg)
 671 {
 672         return 0;
 673 }
 674
 675 static int dummy_sem_semctl (struct sem_array *sma, int cmd)
 676 {
 677         return 0;
 678 }
 679
 680 static int dummy_sem_semop (struct sem_array *sma,
 681                             struct sembuf *sops, unsigned nsops, int alter)
 682 {
 683         return 0;
 684 }
 685
 686 static int dummy_netlink_send (struct sock *sk, struct sk_buff *skb)
 687 {
 688         NETLINK_CB(skb).eff_cap = current->cap_effective;
 689         return 0;
 690 }
 691
 692 static int dummy_netlink_recv (struct sk_buff *skb)
 693 {
 694         if (!cap_raised (NETLINK_CB (skb).eff_cap, CAP_NET_ADMIN))
 695                 return -EPERM;
 696         return 0;
 697 }
 698
 699 #ifdef CONFIG_SECURITY_NETWORK
 700 static int dummy_unix_stream_connect (struct socket *sock,
 701                                       struct socket *other,
 702                                       struct sock *newsk)
 703 {
 704         return 0;
 705 }
 706
 707 static int dummy_unix_may_send (struct socket *sock,
 708                                 struct socket *other)
 709 {
 710         return 0;
 711 }
 712
 713 static int dummy_socket_create (int family, int type,
 714                                 int protocol, int kern)
 715 {
 716         return 0;
 717 }
 718
 719 static void dummy_socket_post_create (struct socket *sock, int family, int type,
 720                                       int protocol, int kern)
 721 {
 722         return;
 723 }
 724
 725 static int dummy_socket_bind (struct socket *sock, struct sockaddr *address,
 726                               int addrlen)
 727 {
 728         return 0;
 729 }
 730
 731 static int dummy_socket_connect (struct socket *sock, struct sockaddr *address,
 732                                  int addrlen)
 733 {
 734         return 0;
 735 }
 736
 737 static int dummy_socket_listen (struct socket *sock, int backlog)
 738 {
 739         return 0;
 740 }
 741
 742 static int dummy_socket_accept (struct socket *sock, struct socket *newsock)
 743 {
 744         return 0;
 745 }
 746
 747 static void dummy_socket_post_accept (struct socket *sock,
 748                                       struct socket *newsock)
 749 {
 750         return;
 751 }
 752
 753 static int dummy_socket_sendmsg (struct socket *sock, struct msghdr *msg,
 754                                  int size)
 755 {
 756         return 0;
 757 }
 758
 759 static int dummy_socket_recvmsg (struct socket *sock, struct msghdr *msg,
 760                                  int size, int flags)
 761 {
 762         return 0;
 763 }
 764
 765 static int dummy_socket_getsockname (struct socket *sock)
 766 {
 767         return 0;
 768 }
 769
 770 static int dummy_socket_getpeername (struct socket *sock)
 771 {
 772         return 0;
 773 }
 774
 775 static int dummy_socket_setsockopt (struct socket *sock, int level, int optname)
 776 {
 777         return 0;
 778 }
 779
 780 static int dummy_socket_getsockopt (struct socket *sock, int level, int optname)
 781 {
 782         return 0;
 783 }
 784
 785 static int dummy_socket_shutdown (struct socket *sock, int how)
 786 {
 787         return 0;
 788 }
 789
 790 static int dummy_socket_sock_rcv_skb (struct sock *sk, struct sk_buff *skb)
 791 {
 792         return 0;
 793 }
 794
 795 static int dummy_socket_getpeersec(struct socket *sock, char __user *optval,
 796                                    int __user *optlen, unsigned len)
 797 {
 798         return -ENOPROTOOPT;
 799 }
 800
 801 static inline int dummy_sk_alloc_security (struct sock *sk, int family, int priority)
 802 {
 803         return 0;
 804 }
 805
 806 static inline void dummy_sk_free_security (struct sock *sk)
 807 {
 808 }
 809 #endif  /* CONFIG_SECURITY_NETWORK */
 810
 811 static int dummy_register_security (const char *name, struct security_operations *ops)
 812 {
 813         return -EINVAL;
 814 }
 815
 816 static int dummy_unregister_security (const char *name, struct security_operations *ops)
 817 {
 818         return -EINVAL;
 819 }
 820
 821 static void dummy_d_instantiate (struct dentry *dentry, struct inode *inode)
 822 {
 823         return;
 824 }
 825
 826 static int dummy_getprocattr(struct task_struct *p, char *name, void *value, size_t size)
 827 {
 828         return -EINVAL;
 829 }
 830
 831 static int dummy_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
 832 {
 833         return -EINVAL;
 834 }
 835
 836
 837 struct security_operations dummy_security_ops;
 838
 839 #define set_to_dummy_if_null(ops, function)                             \
 840         do {                                                            \
 841                 if (!ops->function) {                                   \
 842                         ops->function = dummy_##function;               \
 843                         pr_debug("Had to override the " #function       \
 844                                  " security operation with the dummy one.\n");\
 845                         }                                               \
 846         } while (0)
 847
 848 void security_fixup_ops (struct security_operations *ops)
 849 {
 850         set_to_dummy_if_null(ops, ptrace);
 851         set_to_dummy_if_null(ops, capget);
 852         set_to_dummy_if_null(ops, capset_check);
 853         set_to_dummy_if_null(ops, capset_set);
 854         set_to_dummy_if_null(ops, acct);
 855         set_to_dummy_if_null(ops, capable);
 856         set_to_dummy_if_null(ops, quotactl);
 857         set_to_dummy_if_null(ops, quota_on);
 858         set_to_dummy_if_null(ops, sysctl);
 859         set_to_dummy_if_null(ops, syslog);
 860         set_to_dummy_if_null(ops, settime);
 861         set_to_dummy_if_null(ops, vm_enough_memory);
 862         set_to_dummy_if_null(ops, bprm_alloc_security);
 863         set_to_dummy_if_null(ops, bprm_free_security);
 864         set_to_dummy_if_null(ops, bprm_apply_creds);
 865         set_to_dummy_if_null(ops, bprm_post_apply_creds);
 866         set_to_dummy_if_null(ops, bprm_set_security);
 867         set_to_dummy_if_null(ops, bprm_check_security);
 868         set_to_dummy_if_null(ops, bprm_secureexec);
 869         set_to_dummy_if_null(ops, sb_alloc_security);
 870         set_to_dummy_if_null(ops, sb_free_security);
 871         set_to_dummy_if_null(ops, sb_copy_data);
 872         set_to_dummy_if_null(ops, sb_kern_mount);
 873         set_to_dummy_if_null(ops, sb_statfs);
 874         set_to_dummy_if_null(ops, sb_mount);
 875         set_to_dummy_if_null(ops, sb_check_sb);
 876         set_to_dummy_if_null(ops, sb_umount);
 877         set_to_dummy_if_null(ops, sb_umount_close);
 878         set_to_dummy_if_null(ops, sb_umount_busy);
 879         set_to_dummy_if_null(ops, sb_post_remount);
 880         set_to_dummy_if_null(ops, sb_post_mountroot);
 881         set_to_dummy_if_null(ops, sb_post_addmount);
 882         set_to_dummy_if_null(ops, sb_pivotroot);
 883         set_to_dummy_if_null(ops, sb_post_pivotroot);
 884         set_to_dummy_if_null(ops, inode_alloc_security);
 885         set_to_dummy_if_null(ops, inode_free_security);
 886         set_to_dummy_if_null(ops, inode_create);
 887         set_to_dummy_if_null(ops, inode_post_create);
 888         set_to_dummy_if_null(ops, inode_link);
 889         set_to_dummy_if_null(ops, inode_post_link);
 890         set_to_dummy_if_null(ops, inode_unlink);
 891         set_to_dummy_if_null(ops, inode_symlink);
 892         set_to_dummy_if_null(ops, inode_post_symlink);
 893         set_to_dummy_if_null(ops, inode_mkdir);
 894         set_to_dummy_if_null(ops, inode_post_mkdir);
 895         set_to_dummy_if_null(ops, inode_rmdir);
 896         set_to_dummy_if_null(ops, inode_mknod);
 897         set_to_dummy_if_null(ops, inode_post_mknod);
 898         set_to_dummy_if_null(ops, inode_rename);
 899         set_to_dummy_if_null(ops, inode_post_rename);
 900         set_to_dummy_if_null(ops, inode_readlink);
 901         set_to_dummy_if_null(ops, inode_follow_link);
 902         set_to_dummy_if_null(ops, inode_permission);
 903         set_to_dummy_if_null(ops, inode_setattr);
 904         set_to_dummy_if_null(ops, inode_getattr);
 905         set_to_dummy_if_null(ops, inode_delete);
 906         set_to_dummy_if_null(ops, inode_setxattr);
 907         set_to_dummy_if_null(ops, inode_post_setxattr);
 908         set_to_dummy_if_null(ops, inode_getxattr);
 909         set_to_dummy_if_null(ops, inode_listxattr);
 910         set_to_dummy_if_null(ops, inode_removexattr);
 911         set_to_dummy_if_null(ops, inode_getsecurity);
 912         set_to_dummy_if_null(ops, inode_setsecurity);
 913         set_to_dummy_if_null(ops, inode_listsecurity);
 914         set_to_dummy_if_null(ops, file_permission);
 915         set_to_dummy_if_null(ops, file_alloc_security);
 916         set_to_dummy_if_null(ops, file_free_security);
 917         set_to_dummy_if_null(ops, file_ioctl);
 918         set_to_dummy_if_null(ops, file_mmap);
 919         set_to_dummy_if_null(ops, file_mprotect);
 920         set_to_dummy_if_null(ops, file_lock);
 921         set_to_dummy_if_null(ops, file_fcntl);
 922         set_to_dummy_if_null(ops, file_set_fowner);
 923         set_to_dummy_if_null(ops, file_send_sigiotask);
 924         set_to_dummy_if_null(ops, file_receive);
 925         set_to_dummy_if_null(ops, task_create);
 926         set_to_dummy_if_null(ops, task_alloc_security);
 927         set_to_dummy_if_null(ops, task_free_security);
 928         set_to_dummy_if_null(ops, task_setuid);
 929         set_to_dummy_if_null(ops, task_post_setuid);
 930         set_to_dummy_if_null(ops, task_setgid);
 931         set_to_dummy_if_null(ops, task_setpgid);
 932         set_to_dummy_if_null(ops, task_getpgid);
 933         set_to_dummy_if_null(ops, task_getsid);
 934         set_to_dummy_if_null(ops, task_setgroups);
 935         set_to_dummy_if_null(ops, task_setnice);
 936         set_to_dummy_if_null(ops, task_setrlimit);
 937         set_to_dummy_if_null(ops, task_setscheduler);
 938         set_to_dummy_if_null(ops, task_getscheduler);
 939         set_to_dummy_if_null(ops, task_wait);
 940         set_to_dummy_if_null(ops, task_kill);
 941         set_to_dummy_if_null(ops, task_prctl);
 942         set_to_dummy_if_null(ops, task_reparent_to_init);
 943         set_to_dummy_if_null(ops, task_to_inode);
 944         set_to_dummy_if_null(ops, ipc_permission);
 945         set_to_dummy_if_null(ops, msg_msg_alloc_security);
 946         set_to_dummy_if_null(ops, msg_msg_free_security);
 947         set_to_dummy_if_null(ops, msg_queue_alloc_security);
 948         set_to_dummy_if_null(ops, msg_queue_free_security);
 949         set_to_dummy_if_null(ops, msg_queue_associate);
 950         set_to_dummy_if_null(ops, msg_queue_msgctl);
 951         set_to_dummy_if_null(ops, msg_queue_msgsnd);
 952         set_to_dummy_if_null(ops, msg_queue_msgrcv);
 953         set_to_dummy_if_null(ops, shm_alloc_security);
 954         set_to_dummy_if_null(ops, shm_free_security);
 955         set_to_dummy_if_null(ops, shm_associate);
 956         set_to_dummy_if_null(ops, shm_shmctl);
 957         set_to_dummy_if_null(ops, shm_shmat);
 958         set_to_dummy_if_null(ops, sem_alloc_security);
 959         set_to_dummy_if_null(ops, sem_free_security);
 960         set_to_dummy_if_null(ops, sem_associate);
 961         set_to_dummy_if_null(ops, sem_semctl);
 962         set_to_dummy_if_null(ops, sem_semop);
 963         set_to_dummy_if_null(ops, netlink_send);
 964         set_to_dummy_if_null(ops, netlink_recv);
 965         set_to_dummy_if_null(ops, register_security);
 966         set_to_dummy_if_null(ops, unregister_security);
 967         set_to_dummy_if_null(ops, d_instantiate);
 968         set_to_dummy_if_null(ops, getprocattr);
 969         set_to_dummy_if_null(ops, setprocattr);
 970 #ifdef CONFIG_SECURITY_NETWORK
 971         set_to_dummy_if_null(ops, unix_stream_connect);
 972         set_to_dummy_if_null(ops, unix_may_send);
 973         set_to_dummy_if_null(ops, socket_create);
 974         set_to_dummy_if_null(ops, socket_post_create);
 975         set_to_dummy_if_null(ops, socket_bind);
 976         set_to_dummy_if_null(ops, socket_connect);
 977         set_to_dummy_if_null(ops, socket_listen);
 978         set_to_dummy_if_null(ops, socket_accept);
 979         set_to_dummy_if_null(ops, socket_post_accept);
 980         set_to_dummy_if_null(ops, socket_sendmsg);
 981         set_to_dummy_if_null(ops, socket_recvmsg);
 982         set_to_dummy_if_null(ops, socket_getsockname);
 983         set_to_dummy_if_null(ops, socket_getpeername);
 984         set_to_dummy_if_null(ops, socket_setsockopt);
 985         set_to_dummy_if_null(ops, socket_getsockopt);
 986         set_to_dummy_if_null(ops, socket_shutdown);
 987         set_to_dummy_if_null(ops, socket_sock_rcv_skb);
 988         set_to_dummy_if_null(ops, socket_getpeersec);
 989         set_to_dummy_if_null(ops, sk_alloc_security);
 990         set_to_dummy_if_null(ops, sk_free_security);
 991 #endif  /* CONFIG_SECURITY_NETWORK */
 992 }
 993