linux-bk/security/dummy.c
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   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
  32static int dummy_ptrace (struct task_struct *parent, struct task_struct *child)
  33{
  34        return 0;
  35}
  36
  37static 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
  54static 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
  62static 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
  70static int dummy_acct (struct file *file)
  71{
  72        return 0;
  73}
  74
  75static 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
  82static int dummy_sysctl (ctl_table * table, int op)
  83{
  84        return 0;
  85}
  86
  87static int dummy_quotactl (int cmds, int type, int id, struct super_block *sb)
  88{
  89        return 0;
  90}
  91
  92static int dummy_quota_on (struct dentry *dentry)
  93{
  94        return 0;
  95}
  96
  97static int dummy_syslog (int type)
  98{
  99        if ((type != 3 && type != 10) && current->euid)
 100                return -EPERM;
 101        return 0;
 102}
 103
 104static int dummy_settime(struct timespec *ts, struct timezone *tz)
 105{
 106        if (!capable(CAP_SYS_TIME))
 107                return -EPERM;
 108        return 0;
 109}
 110
 111static 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
 120static int dummy_bprm_alloc_security (struct linux_binprm *bprm)
 121{
 122        return 0;
 123}
 124
 125static void dummy_bprm_free_security (struct linux_binprm *bprm)
 126{
 127        return;
 128}
 129
 130static 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
 147static void dummy_bprm_post_apply_creds (struct linux_binprm *bprm)
 148{
 149        return;
 150}
 151
 152static int dummy_bprm_set_security (struct linux_binprm *bprm)
 153{
 154        return 0;
 155}
 156
 157static int dummy_bprm_check_security (struct linux_binprm *bprm)
 158{
 159        return 0;
 160}
 161
 162static 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
 172static int dummy_sb_alloc_security (struct super_block *sb)
 173{
 174        return 0;
 175}
 176
 177static void dummy_sb_free_security (struct super_block *sb)
 178{
 179        return;
 180}
 181
 182static int dummy_sb_copy_data (struct file_system_type *type,
 183                               void *orig, void *copy)
 184{
 185        return 0;
 186}
 187
 188static int dummy_sb_kern_mount (struct super_block *sb, void *data)
 189{
 190        return 0;
 191}
 192
 193static int dummy_sb_statfs (struct super_block *sb)
 194{
 195        return 0;
 196}
 197
 198static int dummy_sb_mount (char *dev_name, struct nameidata *nd, char *type,
 199                           unsigned long flags, void *data)
 200{
 201        return 0;
 202}
 203
 204static int dummy_sb_check_sb (struct vfsmount *mnt, struct nameidata *nd)
 205{
 206        return 0;
 207}
 208
 209static int dummy_sb_umount (struct vfsmount *mnt, int flags)
 210{
 211        return 0;
 212}
 213
 214static void dummy_sb_umount_close (struct vfsmount *mnt)
 215{
 216        return;
 217}
 218
 219static void dummy_sb_umount_busy (struct vfsmount *mnt)
 220{
 221        return;
 222}
 223
 224static void dummy_sb_post_remount (struct vfsmount *mnt, unsigned long flags,
 225                                   void *data)
 226{
 227        return;
 228}
 229
 230
 231static void dummy_sb_post_mountroot (void)
 232{
 233        return;
 234}
 235
 236static void dummy_sb_post_addmount (struct vfsmount *mnt, struct nameidata *nd)
 237{
 238        return;
 239}
 240
 241static int dummy_sb_pivotroot (struct nameidata *old_nd, struct nameidata *new_nd)
 242{
 243        return 0;
 244}
 245
 246static void dummy_sb_post_pivotroot (struct nameidata *old_nd, struct nameidata *new_nd)
 247{
 248        return;
 249}
 250
 251static int dummy_inode_alloc_security (struct inode *inode)
 252{
 253        return 0;
 254}
 255
 256static void dummy_inode_free_security (struct inode *inode)
 257{
 258        return;
 259}
 260
 261static int dummy_inode_create (struct inode *inode, struct dentry *dentry,
 262                               int mask)
 263{
 264        return 0;
 265}
 266
 267static void dummy_inode_post_create (struct inode *inode, struct dentry *dentry,
 268                                     int mask)
 269{
 270        return;
 271}
 272
 273static int dummy_inode_link (struct dentry *old_dentry, struct inode *inode,
 274                             struct dentry *new_dentry)
 275{
 276        return 0;
 277}
 278
 279static void dummy_inode_post_link (struct dentry *old_dentry,
 280                                   struct inode *inode,
 281                                   struct dentry *new_dentry)
 282{
 283        return;
 284}
 285
 286static int dummy_inode_unlink (struct inode *inode, struct dentry *dentry)
 287{
 288        return 0;
 289}
 290
 291static int dummy_inode_symlink (struct inode *inode, struct dentry *dentry,
 292                                const char *name)
 293{
 294        return 0;
 295}
 296
 297static void dummy_inode_post_symlink (struct inode *inode,
 298                                      struct dentry *dentry, const char *name)
 299{
 300        return;
 301}
 302
 303static int dummy_inode_mkdir (struct inode *inode, struct dentry *dentry,
 304                              int mask)
 305{
 306        return 0;
 307}
 308
 309static void dummy_inode_post_mkdir (struct inode *inode, struct dentry *dentry,
 310                                    int mask)
 311{
 312        return;
 313}
 314
 315static int dummy_inode_rmdir (struct inode *inode, struct dentry *dentry)
 316{
 317        return 0;
 318}
 319
 320static int dummy_inode_mknod (struct inode *inode, struct dentry *dentry,
 321                              int mode, dev_t dev)
 322{
 323        return 0;
 324}
 325
 326static void dummy_inode_post_mknod (struct inode *inode, struct dentry *dentry,
 327                                    int mode, dev_t dev)
 328{
 329        return;
 330}
 331
 332static 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
 340static 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
 348static int dummy_inode_readlink (struct dentry *dentry)
 349{
 350        return 0;
 351}
 352
 353static int dummy_inode_follow_link (struct dentry *dentry,
 354                                    struct nameidata *nameidata)
 355{
 356        return 0;
 357}
 358
 359static int dummy_inode_permission (struct inode *inode, int mask, struct nameidata *nd)
 360{
 361        return 0;
 362}
 363
 364static int dummy_inode_setattr (struct dentry *dentry, struct iattr *iattr)
 365{
 366        return 0;
 367}
 368
 369static int dummy_inode_getattr (struct vfsmount *mnt, struct dentry *dentry)
 370{
 371        return 0;
 372}
 373
 374static void dummy_inode_delete (struct inode *ino)
 375{
 376        return;
 377}
 378
 379static 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
 389static void dummy_inode_post_setxattr (struct dentry *dentry, char *name, void *value,
 390                                       size_t size, int flags)
 391{
 392}
 393
 394static int dummy_inode_getxattr (struct dentry *dentry, char *name)
 395{
 396        return 0;
 397}
 398
 399static int dummy_inode_listxattr (struct dentry *dentry)
 400{
 401        return 0;
 402}
 403
 404static 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
 413static int dummy_inode_getsecurity(struct inode *inode, const char *name, void *buffer, size_t size)
 414{
 415        return -EOPNOTSUPP;
 416}
 417
 418static int dummy_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
 419{
 420        return -EOPNOTSUPP;
 421}
 422
 423static int dummy_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
 424{
 425        return 0;
 426}
 427
 428static int dummy_file_permission (struct file *file, int mask)
 429{
 430        return 0;
 431}
 432
 433static int dummy_file_alloc_security (struct file *file)
 434{
 435        return 0;
 436}
 437
 438static void dummy_file_free_security (struct file *file)
 439{
 440        return;
 441}
 442
 443static int dummy_file_ioctl (struct file *file, unsigned int command,
 444                             unsigned long arg)
 445{
 446        return 0;
 447}
 448
 449static int dummy_file_mmap (struct file *file, unsigned long prot,
 450                            unsigned long flags)
 451{
 452        return 0;
 453}
 454
 455static int dummy_file_mprotect (struct vm_area_struct *vma, unsigned long prot)
 456{
 457        return 0;
 458}
 459
 460static int dummy_file_lock (struct file *file, unsigned int cmd)
 461{
 462        return 0;
 463}
 464
 465static int dummy_file_fcntl (struct file *file, unsigned int cmd,
 466                             unsigned long arg)
 467{
 468        return 0;
 469}
 470
 471static int dummy_file_set_fowner (struct file *file)
 472{
 473        return 0;
 474}
 475
 476static int dummy_file_send_sigiotask (struct task_struct *tsk,
 477                                      struct fown_struct *fown, int sig)
 478{
 479        return 0;
 480}
 481
 482static int dummy_file_receive (struct file *file)
 483{
 484        return 0;
 485}
 486
 487static int dummy_task_create (unsigned long clone_flags)
 488{
 489        return 0;
 490}
 491
 492static int dummy_task_alloc_security (struct task_struct *p)
 493{
 494        return 0;
 495}
 496
 497static void dummy_task_free_security (struct task_struct *p)
 498{
 499        return;
 500}
 501
 502static int dummy_task_setuid (uid_t id0, uid_t id1, uid_t id2, int flags)
 503{
 504        return 0;
 505}
 506
 507static 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
 513static int dummy_task_setgid (gid_t id0, gid_t id1, gid_t id2, int flags)
 514{
 515        return 0;
 516}
 517
 518static int dummy_task_setpgid (struct task_struct *p, pid_t pgid)
 519{
 520        return 0;
 521}
 522
 523static int dummy_task_getpgid (struct task_struct *p)
 524{
 525        return 0;
 526}
 527
 528static int dummy_task_getsid (struct task_struct *p)
 529{
 530        return 0;
 531}
 532
 533static int dummy_task_setgroups (struct group_info *group_info)
 534{
 535        return 0;
 536}
 537
 538static int dummy_task_setnice (struct task_struct *p, int nice)
 539{
 540        return 0;
 541}
 542
 543static int dummy_task_setrlimit (unsigned int resource, struct rlimit *new_rlim)
 544{
 545        return 0;
 546}
 547
 548static int dummy_task_setscheduler (struct task_struct *p, int policy,
 549                                    struct sched_param *lp)
 550{
 551        return 0;
 552}
 553
 554static int dummy_task_getscheduler (struct task_struct *p)
 555{
 556        return 0;
 557}
 558
 559static int dummy_task_wait (struct task_struct *p)
 560{
 561        return 0;
 562}
 563
 564static int dummy_task_kill (struct task_struct *p, struct siginfo *info,
 565                            int sig)
 566{
 567        return 0;
 568}
 569
 570static 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
 576static void dummy_task_reparent_to_init (struct task_struct *p)
 577{
 578        p->euid = p->fsuid = 0;
 579        return;
 580}
 581
 582static void dummy_task_to_inode(struct task_struct *p, struct inode *inode)
 583{ }
 584
 585static int dummy_ipc_permission (struct kern_ipc_perm *ipcp, short flag)
 586{
 587        return 0;
 588}
 589
 590static int dummy_msg_msg_alloc_security (struct msg_msg *msg)
 591{
 592        return 0;
 593}
 594
 595static void dummy_msg_msg_free_security (struct msg_msg *msg)
 596{
 597        return;
 598}
 599
 600static int dummy_msg_queue_alloc_security (struct msg_queue *msq)
 601{
 602        return 0;
 603}
 604
 605static void dummy_msg_queue_free_security (struct msg_queue *msq)
 606{
 607        return;
 608}
 609
 610static int dummy_msg_queue_associate (struct msg_queue *msq, 
 611                                      int msqflg)
 612{
 613        return 0;
 614}
 615
 616static int dummy_msg_queue_msgctl (struct msg_queue *msq, int cmd)
 617{
 618        return 0;
 619}
 620
 621static int dummy_msg_queue_msgsnd (struct msg_queue *msq, struct msg_msg *msg,
 622                                   int msgflg)
 623{
 624        return 0;
 625}
 626
 627static 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
 634static int dummy_shm_alloc_security (struct shmid_kernel *shp)
 635{
 636        return 0;
 637}
 638
 639static void dummy_shm_free_security (struct shmid_kernel *shp)
 640{
 641        return;
 642}
 643
 644static int dummy_shm_associate (struct shmid_kernel *shp, int shmflg)
 645{
 646        return 0;
 647}
 648
 649static int dummy_shm_shmctl (struct shmid_kernel *shp, int cmd)
 650{
 651        return 0;
 652}
 653
 654static int dummy_shm_shmat (struct shmid_kernel *shp, char __user *shmaddr,
 655                            int shmflg)
 656{
 657        return 0;
 658}
 659
 660static int dummy_sem_alloc_security (struct sem_array *sma)
 661{
 662        return 0;
 663}
 664
 665static void dummy_sem_free_security (struct sem_array *sma)
 666{
 667        return;
 668}
 669
 670static int dummy_sem_associate (struct sem_array *sma, int semflg)
 671{
 672        return 0;
 673}
 674
 675static int dummy_sem_semctl (struct sem_array *sma, int cmd)
 676{
 677        return 0;
 678}
 679
 680static int dummy_sem_semop (struct sem_array *sma, 
 681                            struct sembuf *sops, unsigned nsops, int alter)
 682{
 683        return 0;
 684}
 685
 686static 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
 692static 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
 700static int dummy_unix_stream_connect (struct socket *sock,
 701                                      struct socket *other,
 702                                      struct sock *newsk)
 703{
 704        return 0;
 705}
 706
 707static int dummy_unix_may_send (struct socket *sock,
 708                                struct socket *other)
 709{
 710        return 0;
 711}
 712
 713static int dummy_socket_create (int family, int type,
 714                                int protocol, int kern)
 715{
 716        return 0;
 717}
 718
 719static void dummy_socket_post_create (struct socket *sock, int family, int type,
 720                                      int protocol, int kern)
 721{
 722        return;
 723}
 724
 725static int dummy_socket_bind (struct socket *sock, struct sockaddr *address,
 726                              int addrlen)
 727{
 728        return 0;
 729}
 730
 731static int dummy_socket_connect (struct socket *sock, struct sockaddr *address,
 732                                 int addrlen)
 733{
 734        return 0;
 735}
 736
 737static int dummy_socket_listen (struct socket *sock, int backlog)
 738{
 739        return 0;
 740}
 741
 742static int dummy_socket_accept (struct socket *sock, struct socket *newsock)
 743{
 744        return 0;
 745}
 746
 747static void dummy_socket_post_accept (struct socket *sock, 
 748                                      struct socket *newsock)
 749{
 750        return;
 751}
 752
 753static int dummy_socket_sendmsg (struct socket *sock, struct msghdr *msg,
 754                                 int size)
 755{
 756        return 0;
 757}
 758
 759static int dummy_socket_recvmsg (struct socket *sock, struct msghdr *msg,
 760                                 int size, int flags)
 761{
 762        return 0;
 763}
 764
 765static int dummy_socket_getsockname (struct socket *sock)
 766{
 767        return 0;
 768}
 769
 770static int dummy_socket_getpeername (struct socket *sock)
 771{
 772        return 0;
 773}
 774
 775static int dummy_socket_setsockopt (struct socket *sock, int level, int optname)
 776{
 777        return 0;
 778}
 779
 780static int dummy_socket_getsockopt (struct socket *sock, int level, int optname)
 781{
 782        return 0;
 783}
 784
 785static int dummy_socket_shutdown (struct socket *sock, int how)
 786{
 787        return 0;
 788}
 789
 790static int dummy_socket_sock_rcv_skb (struct sock *sk, struct sk_buff *skb)
 791{
 792        return 0;
 793}
 794
 795static int dummy_socket_getpeersec(struct socket *sock, char __user *optval,
 796                                   int __user *optlen, unsigned len)
 797{
 798        return -ENOPROTOOPT;
 799}
 800
 801static inline int dummy_sk_alloc_security (struct sock *sk, int family, int priority)
 802{
 803        return 0;
 804}
 805
 806static inline void dummy_sk_free_security (struct sock *sk)
 807{
 808}
 809#endif  /* CONFIG_SECURITY_NETWORK */
 810
 811static int dummy_register_security (const char *name, struct security_operations *ops)
 812{
 813        return -EINVAL;
 814}
 815
 816static int dummy_unregister_security (const char *name, struct security_operations *ops)
 817{
 818        return -EINVAL;
 819}
 820
 821static void dummy_d_instantiate (struct dentry *dentry, struct inode *inode)
 822{
 823        return;
 824}
 825
 826static int dummy_getprocattr(struct task_struct *p, char *name, void *value, size_t size)
 827{
 828        return -EINVAL;
 829}
 830
 831static int dummy_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
 832{
 833        return -EINVAL;
 834}
 835
 836
 837struct 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
 848void 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
 994
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