security/capability.c

   1 /*
   2  *  Capabilities Linux Security Module
   3  *
   4  *  This is the default security module in case no other module is loaded.
   5  *
   6  *      This program is free software; you can redistribute it and/or modify
   7  *      it under the terms of the GNU General Public License as published by
   8  *      the Free Software Foundation; either version 2 of the License, or
   9  *      (at your option) any later version.
  10  *
  11  */
  12
  13 #include <linux/security.h>
  14
  15 static int cap_binder_set_context_mgr(struct task_struct *mgr)
  16 {
  17         return 0;
  18 }
  19
  20 static int cap_binder_transaction(struct task_struct *from, struct task_struct *to)
  21 {
  22         return 0;
  23 }
  24
  25 static int cap_binder_transfer_binder(struct task_struct *from, struct task_struct *to)
  26 {
  27         return 0;
  28 }
  29
  30 static int cap_binder_transfer_file(struct task_struct *from, struct task_struct *to, struct file *file)
  31 {
  32         return 0;
  33 }
  34
  35 static int cap_syslog(int type)
  36 {
  37         return 0;
  38 }
  39
  40 static int cap_quotactl(int cmds, int type, int id, struct super_block *sb)
  41 {
  42         return 0;
  43 }
  44
  45 static int cap_quota_on(struct dentry *dentry)
  46 {
  47         return 0;
  48 }
  49
  50 static int cap_bprm_check_security(struct linux_binprm *bprm)
  51 {
  52         return 0;
  53 }
  54
  55 static void cap_bprm_committing_creds(struct linux_binprm *bprm)
  56 {
  57 }
  58
  59 static void cap_bprm_committed_creds(struct linux_binprm *bprm)
  60 {
  61 }
  62
  63 static int cap_sb_alloc_security(struct super_block *sb)
  64 {
  65         return 0;
  66 }
  67
  68 static void cap_sb_free_security(struct super_block *sb)
  69 {
  70 }
  71
  72 static int cap_sb_copy_data(char *orig, char *copy)
  73 {
  74         return 0;
  75 }
  76
  77 static int cap_sb_remount(struct super_block *sb, void *data)
  78 {
  79         return 0;
  80 }
  81
  82 static int cap_sb_kern_mount(struct super_block *sb, int flags, void *data)
  83 {
  84         return 0;
  85 }
  86
  87 static int cap_sb_show_options(struct seq_file *m, struct super_block *sb)
  88 {
  89         return 0;
  90 }
  91
  92 static int cap_sb_statfs(struct dentry *dentry)
  93 {
  94         return 0;
  95 }
  96
  97 static int cap_sb_mount(const char *dev_name, struct path *path,
  98                         const char *type, unsigned long flags, void *data)
  99 {
 100         return 0;
 101 }
 102
 103 static int cap_sb_umount(struct vfsmount *mnt, int flags)
 104 {
 105         return 0;
 106 }
 107
 108 static int cap_sb_pivotroot(struct path *old_path, struct path *new_path)
 109 {
 110         return 0;
 111 }
 112
 113 static int cap_sb_set_mnt_opts(struct super_block *sb,
 114                                struct security_mnt_opts *opts)
 115 {
 116         if (unlikely(opts->num_mnt_opts))
 117                 return -EOPNOTSUPP;
 118         return 0;
 119 }
 120
 121 static int cap_sb_clone_mnt_opts(const struct super_block *oldsb,
 122                                   struct super_block *newsb)
 123 {
 124         return 0;
 125 }
 126
 127 static int cap_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
 128 {
 129         return 0;
 130 }
 131
 132 static int cap_inode_alloc_security(struct inode *inode)
 133 {
 134         return 0;
 135 }
 136
 137 static void cap_inode_free_security(struct inode *inode)
 138 {
 139 }
 140
 141 static int cap_inode_init_security(struct inode *inode, struct inode *dir,
 142                                    const struct qstr *qstr, char **name,
 143                                    void **value, size_t *len)
 144 {
 145         return -EOPNOTSUPP;
 146 }
 147
 148 static int cap_inode_create(struct inode *inode, struct dentry *dentry,
 149                             umode_t mask)
 150 {
 151         return 0;
 152 }
 153
 154 static int cap_inode_link(struct dentry *old_dentry, struct inode *inode,
 155                           struct dentry *new_dentry)
 156 {
 157         return 0;
 158 }
 159
 160 static int cap_inode_unlink(struct inode *inode, struct dentry *dentry)
 161 {
 162         return 0;
 163 }
 164
 165 static int cap_inode_symlink(struct inode *inode, struct dentry *dentry,
 166                              const char *name)
 167 {
 168         return 0;
 169 }
 170
 171 static int cap_inode_mkdir(struct inode *inode, struct dentry *dentry,
 172                            umode_t mask)
 173 {
 174         return 0;
 175 }
 176
 177 static int cap_inode_rmdir(struct inode *inode, struct dentry *dentry)
 178 {
 179         return 0;
 180 }
 181
 182 static int cap_inode_mknod(struct inode *inode, struct dentry *dentry,
 183                            umode_t mode, dev_t dev)
 184 {
 185         return 0;
 186 }
 187
 188 static int cap_inode_rename(struct inode *old_inode, struct dentry *old_dentry,
 189                             struct inode *new_inode, struct dentry *new_dentry)
 190 {
 191         return 0;
 192 }
 193
 194 static int cap_inode_readlink(struct dentry *dentry)
 195 {
 196         return 0;
 197 }
 198
 199 static int cap_inode_follow_link(struct dentry *dentry,
 200                                  struct nameidata *nameidata)
 201 {
 202         return 0;
 203 }
 204
 205 static int cap_inode_permission(struct inode *inode, int mask)
 206 {
 207         return 0;
 208 }
 209
 210 static int cap_inode_setattr(struct dentry *dentry, struct iattr *iattr)
 211 {
 212         return 0;
 213 }
 214
 215 static int cap_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
 216 {
 217         return 0;
 218 }
 219
 220 static void cap_inode_post_setxattr(struct dentry *dentry, const char *name,
 221                                     const void *value, size_t size, int flags)
 222 {
 223 }
 224
 225 static int cap_inode_getxattr(struct dentry *dentry, const char *name)
 226 {
 227         return 0;
 228 }
 229
 230 static int cap_inode_listxattr(struct dentry *dentry)
 231 {
 232         return 0;
 233 }
 234
 235 static int cap_inode_getsecurity(const struct inode *inode, const char *name,
 236                                  void **buffer, bool alloc)
 237 {
 238         return -EOPNOTSUPP;
 239 }
 240
 241 static int cap_inode_setsecurity(struct inode *inode, const char *name,
 242                                  const void *value, size_t size, int flags)
 243 {
 244         return -EOPNOTSUPP;
 245 }
 246
 247 static int cap_inode_listsecurity(struct inode *inode, char *buffer,
 248                                   size_t buffer_size)
 249 {
 250         return 0;
 251 }
 252
 253 static void cap_inode_getsecid(const struct inode *inode, u32 *secid)
 254 {
 255         *secid = 0;
 256 }
 257
 258 #ifdef CONFIG_SECURITY_PATH
 259 static int cap_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
 260                           unsigned int dev)
 261 {
 262         return 0;
 263 }
 264
 265 static int cap_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
 266 {
 267         return 0;
 268 }
 269
 270 static int cap_path_rmdir(struct path *dir, struct dentry *dentry)
 271 {
 272         return 0;
 273 }
 274
 275 static int cap_path_unlink(struct path *dir, struct dentry *dentry)
 276 {
 277         return 0;
 278 }
 279
 280 static int cap_path_symlink(struct path *dir, struct dentry *dentry,
 281                             const char *old_name)
 282 {
 283         return 0;
 284 }
 285
 286 static int cap_path_link(struct dentry *old_dentry, struct path *new_dir,
 287                          struct dentry *new_dentry)
 288 {
 289         return 0;
 290 }
 291
 292 static int cap_path_rename(struct path *old_path, struct dentry *old_dentry,
 293                            struct path *new_path, struct dentry *new_dentry)
 294 {
 295         return 0;
 296 }
 297
 298 static int cap_path_truncate(struct path *path)
 299 {
 300         return 0;
 301 }
 302
 303 static int cap_path_chmod(struct path *path, umode_t mode)
 304 {
 305         return 0;
 306 }
 307
 308 static int cap_path_chown(struct path *path, kuid_t uid, kgid_t gid)
 309 {
 310         return 0;
 311 }
 312
 313 static int cap_path_chroot(struct path *root)
 314 {
 315         return 0;
 316 }
 317 #endif
 318
 319 static int cap_file_permission(struct file *file, int mask)
 320 {
 321         return 0;
 322 }
 323
 324 static int cap_file_alloc_security(struct file *file)
 325 {
 326         return 0;
 327 }
 328
 329 static void cap_file_free_security(struct file *file)
 330 {
 331 }
 332
 333 static int cap_file_ioctl(struct file *file, unsigned int command,
 334                           unsigned long arg)
 335 {
 336         return 0;
 337 }
 338
 339 static int cap_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
 340                              unsigned long prot)
 341 {
 342         return 0;
 343 }
 344
 345 static int cap_file_lock(struct file *file, unsigned int cmd)
 346 {
 347         return 0;
 348 }
 349
 350 static int cap_file_fcntl(struct file *file, unsigned int cmd,
 351                           unsigned long arg)
 352 {
 353         return 0;
 354 }
 355
 356 static int cap_file_set_fowner(struct file *file)
 357 {
 358         return 0;
 359 }
 360
 361 static int cap_file_send_sigiotask(struct task_struct *tsk,
 362                                    struct fown_struct *fown, int sig)
 363 {
 364         return 0;
 365 }
 366
 367 static int cap_file_receive(struct file *file)
 368 {
 369         return 0;
 370 }
 371
 372 static int cap_file_open(struct file *file, const struct cred *cred)
 373 {
 374         return 0;
 375 }
 376
 377 static int cap_task_create(unsigned long clone_flags)
 378 {
 379         return 0;
 380 }
 381
 382 static void cap_task_free(struct task_struct *task)
 383 {
 384 }
 385
 386 static int cap_cred_alloc_blank(struct cred *cred, gfp_t gfp)
 387 {
 388         return 0;
 389 }
 390
 391 static void cap_cred_free(struct cred *cred)
 392 {
 393 }
 394
 395 static int cap_cred_prepare(struct cred *new, const struct cred *old, gfp_t gfp)
 396 {
 397         return 0;
 398 }
 399
 400 static void cap_cred_transfer(struct cred *new, const struct cred *old)
 401 {
 402 }
 403
 404 static int cap_kernel_act_as(struct cred *new, u32 secid)
 405 {
 406         return 0;
 407 }
 408
 409 static int cap_kernel_create_files_as(struct cred *new, struct inode *inode)
 410 {
 411         return 0;
 412 }
 413
 414 static int cap_kernel_module_request(char *kmod_name)
 415 {
 416         return 0;
 417 }
 418
 419 static int cap_kernel_module_from_file(struct file *file)
 420 {
 421         return 0;
 422 }
 423
 424 static int cap_task_setpgid(struct task_struct *p, pid_t pgid)
 425 {
 426         return 0;
 427 }
 428
 429 static int cap_task_getpgid(struct task_struct *p)
 430 {
 431         return 0;
 432 }
 433
 434 static int cap_task_getsid(struct task_struct *p)
 435 {
 436         return 0;
 437 }
 438
 439 static void cap_task_getsecid(struct task_struct *p, u32 *secid)
 440 {
 441         *secid = 0;
 442 }
 443
 444 static int cap_task_getioprio(struct task_struct *p)
 445 {
 446         return 0;
 447 }
 448
 449 static int cap_task_setrlimit(struct task_struct *p, unsigned int resource,
 450                 struct rlimit *new_rlim)
 451 {
 452         return 0;
 453 }
 454
 455 static int cap_task_getscheduler(struct task_struct *p)
 456 {
 457         return 0;
 458 }
 459
 460 static int cap_task_movememory(struct task_struct *p)
 461 {
 462         return 0;
 463 }
 464
 465 static int cap_task_wait(struct task_struct *p)
 466 {
 467         return 0;
 468 }
 469
 470 static int cap_task_kill(struct task_struct *p, struct siginfo *info,
 471                          int sig, u32 secid)
 472 {
 473         return 0;
 474 }
 475
 476 static void cap_task_to_inode(struct task_struct *p, struct inode *inode)
 477 {
 478 }
 479
 480 static int cap_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
 481 {
 482         return 0;
 483 }
 484
 485 static void cap_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
 486 {
 487         *secid = 0;
 488 }
 489
 490 static int cap_msg_msg_alloc_security(struct msg_msg *msg)
 491 {
 492         return 0;
 493 }
 494
 495 static void cap_msg_msg_free_security(struct msg_msg *msg)
 496 {
 497 }
 498
 499 static int cap_msg_queue_alloc_security(struct msg_queue *msq)
 500 {
 501         return 0;
 502 }
 503
 504 static void cap_msg_queue_free_security(struct msg_queue *msq)
 505 {
 506 }
 507
 508 static int cap_msg_queue_associate(struct msg_queue *msq, int msqflg)
 509 {
 510         return 0;
 511 }
 512
 513 static int cap_msg_queue_msgctl(struct msg_queue *msq, int cmd)
 514 {
 515         return 0;
 516 }
 517
 518 static int cap_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
 519                                 int msgflg)
 520 {
 521         return 0;
 522 }
 523
 524 static int cap_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
 525                                 struct task_struct *target, long type, int mode)
 526 {
 527         return 0;
 528 }
 529
 530 static int cap_shm_alloc_security(struct shmid_kernel *shp)
 531 {
 532         return 0;
 533 }
 534
 535 static void cap_shm_free_security(struct shmid_kernel *shp)
 536 {
 537 }
 538
 539 static int cap_shm_associate(struct shmid_kernel *shp, int shmflg)
 540 {
 541         return 0;
 542 }
 543
 544 static int cap_shm_shmctl(struct shmid_kernel *shp, int cmd)
 545 {
 546         return 0;
 547 }
 548
 549 static int cap_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr,
 550                          int shmflg)
 551 {
 552         return 0;
 553 }
 554
 555 static int cap_sem_alloc_security(struct sem_array *sma)
 556 {
 557         return 0;
 558 }
 559
 560 static void cap_sem_free_security(struct sem_array *sma)
 561 {
 562 }
 563
 564 static int cap_sem_associate(struct sem_array *sma, int semflg)
 565 {
 566         return 0;
 567 }
 568
 569 static int cap_sem_semctl(struct sem_array *sma, int cmd)
 570 {
 571         return 0;
 572 }
 573
 574 static int cap_sem_semop(struct sem_array *sma, struct sembuf *sops,
 575                          unsigned nsops, int alter)
 576 {
 577         return 0;
 578 }
 579
 580 #ifdef CONFIG_SECURITY_NETWORK
 581 static int cap_unix_stream_connect(struct sock *sock, struct sock *other,
 582                                    struct sock *newsk)
 583 {
 584         return 0;
 585 }
 586
 587 static int cap_unix_may_send(struct socket *sock, struct socket *other)
 588 {
 589         return 0;
 590 }
 591
 592 static int cap_socket_create(int family, int type, int protocol, int kern)
 593 {
 594         return 0;
 595 }
 596
 597 static int cap_socket_post_create(struct socket *sock, int family, int type,
 598                                   int protocol, int kern)
 599 {
 600         return 0;
 601 }
 602
 603 static int cap_socket_bind(struct socket *sock, struct sockaddr *address,
 604                            int addrlen)
 605 {
 606         return 0;
 607 }
 608
 609 static int cap_socket_connect(struct socket *sock, struct sockaddr *address,
 610                               int addrlen)
 611 {
 612         return 0;
 613 }
 614
 615 static int cap_socket_listen(struct socket *sock, int backlog)
 616 {
 617         return 0;
 618 }
 619
 620 static int cap_socket_accept(struct socket *sock, struct socket *newsock)
 621 {
 622         return 0;
 623 }
 624
 625 static int cap_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
 626 {
 627         return 0;
 628 }
 629
 630 static int cap_socket_recvmsg(struct socket *sock, struct msghdr *msg,
 631                               int size, int flags)
 632 {
 633         return 0;
 634 }
 635
 636 static int cap_socket_getsockname(struct socket *sock)
 637 {
 638         return 0;
 639 }
 640
 641 static int cap_socket_getpeername(struct socket *sock)
 642 {
 643         return 0;
 644 }
 645
 646 static int cap_socket_setsockopt(struct socket *sock, int level, int optname)
 647 {
 648         return 0;
 649 }
 650
 651 static int cap_socket_getsockopt(struct socket *sock, int level, int optname)
 652 {
 653         return 0;
 654 }
 655
 656 static int cap_socket_shutdown(struct socket *sock, int how)
 657 {
 658         return 0;
 659 }
 660
 661 static int cap_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
 662 {
 663         return 0;
 664 }
 665
 666 static int cap_socket_getpeersec_stream(struct socket *sock,
 667                                         char __user *optval,
 668                                         int __user *optlen, unsigned len)
 669 {
 670         return -ENOPROTOOPT;
 671 }
 672
 673 static int cap_socket_getpeersec_dgram(struct socket *sock,
 674                                        struct sk_buff *skb, u32 *secid)
 675 {
 676         return -ENOPROTOOPT;
 677 }
 678
 679 static int cap_sk_alloc_security(struct sock *sk, int family, gfp_t priority)
 680 {
 681         return 0;
 682 }
 683
 684 static void cap_sk_free_security(struct sock *sk)
 685 {
 686 }
 687
 688 static void cap_sk_clone_security(const struct sock *sk, struct sock *newsk)
 689 {
 690 }
 691
 692 static void cap_sk_getsecid(struct sock *sk, u32 *secid)
 693 {
 694 }
 695
 696 static void cap_sock_graft(struct sock *sk, struct socket *parent)
 697 {
 698 }
 699
 700 static int cap_inet_conn_request(struct sock *sk, struct sk_buff *skb,
 701                                  struct request_sock *req)
 702 {
 703         return 0;
 704 }
 705
 706 static void cap_inet_csk_clone(struct sock *newsk,
 707                                const struct request_sock *req)
 708 {
 709 }
 710
 711 static void cap_inet_conn_established(struct sock *sk, struct sk_buff *skb)
 712 {
 713 }
 714
 715 static int cap_secmark_relabel_packet(u32 secid)
 716 {
 717         return 0;
 718 }
 719
 720 static void cap_secmark_refcount_inc(void)
 721 {
 722 }
 723
 724 static void cap_secmark_refcount_dec(void)
 725 {
 726 }
 727
 728 static void cap_req_classify_flow(const struct request_sock *req,
 729                                   struct flowi *fl)
 730 {
 731 }
 732
 733 static int cap_tun_dev_alloc_security(void **security)
 734 {
 735         return 0;
 736 }
 737
 738 static void cap_tun_dev_free_security(void *security)
 739 {
 740 }
 741
 742 static int cap_tun_dev_create(void)
 743 {
 744         return 0;
 745 }
 746
 747 static int cap_tun_dev_attach_queue(void *security)
 748 {
 749         return 0;
 750 }
 751
 752 static int cap_tun_dev_attach(struct sock *sk, void *security)
 753 {
 754         return 0;
 755 }
 756
 757 static int cap_tun_dev_open(void *security)
 758 {
 759         return 0;
 760 }
 761
 762 static void cap_skb_owned_by(struct sk_buff *skb, struct sock *sk)
 763 {
 764 }
 765
 766 #endif  /* CONFIG_SECURITY_NETWORK */
 767
 768 #ifdef CONFIG_SECURITY_NETWORK_XFRM
 769 static int cap_xfrm_policy_alloc_security(struct xfrm_sec_ctx **ctxp,
 770                                           struct xfrm_user_sec_ctx *sec_ctx)
 771 {
 772         return 0;
 773 }
 774
 775 static int cap_xfrm_policy_clone_security(struct xfrm_sec_ctx *old_ctx,
 776                                           struct xfrm_sec_ctx **new_ctxp)
 777 {
 778         return 0;
 779 }
 780
 781 static void cap_xfrm_policy_free_security(struct xfrm_sec_ctx *ctx)
 782 {
 783 }
 784
 785 static int cap_xfrm_policy_delete_security(struct xfrm_sec_ctx *ctx)
 786 {
 787         return 0;
 788 }
 789
 790 static int cap_xfrm_state_alloc_security(struct xfrm_state *x,
 791                                          struct xfrm_user_sec_ctx *sec_ctx,
 792                                          u32 secid)
 793 {
 794         return 0;
 795 }
 796
 797 static void cap_xfrm_state_free_security(struct xfrm_state *x)
 798 {
 799 }
 800
 801 static int cap_xfrm_state_delete_security(struct xfrm_state *x)
 802 {
 803         return 0;
 804 }
 805
 806 static int cap_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 sk_sid, u8 dir)
 807 {
 808         return 0;
 809 }
 810
 811 static int cap_xfrm_state_pol_flow_match(struct xfrm_state *x,
 812                                          struct xfrm_policy *xp,
 813                                          const struct flowi *fl)
 814 {
 815         return 1;
 816 }
 817
 818 static int cap_xfrm_decode_session(struct sk_buff *skb, u32 *fl, int ckall)
 819 {
 820         return 0;
 821 }
 822
 823 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
 824 static void cap_d_instantiate(struct dentry *dentry, struct inode *inode)
 825 {
 826 }
 827
 828 static int cap_getprocattr(struct task_struct *p, char *name, char **value)
 829 {
 830         return -EINVAL;
 831 }
 832
 833 static int cap_setprocattr(struct task_struct *p, char *name, void *value,
 834                            size_t size)
 835 {
 836         return -EINVAL;
 837 }
 838
 839 static int cap_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
 840 {
 841         return -EOPNOTSUPP;
 842 }
 843
 844 static int cap_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
 845 {
 846         *secid = 0;
 847         return 0;
 848 }
 849
 850 static void cap_release_secctx(char *secdata, u32 seclen)
 851 {
 852 }
 853
 854 static int cap_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
 855 {
 856         return 0;
 857 }
 858
 859 static int cap_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
 860 {
 861         return 0;
 862 }
 863
 864 static int cap_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
 865 {
 866         return 0;
 867 }
 868 #ifdef CONFIG_KEYS
 869 static int cap_key_alloc(struct key *key, const struct cred *cred,
 870                          unsigned long flags)
 871 {
 872         return 0;
 873 }
 874
 875 static void cap_key_free(struct key *key)
 876 {
 877 }
 878
 879 static int cap_key_permission(key_ref_t key_ref, const struct cred *cred,
 880                               key_perm_t perm)
 881 {
 882         return 0;
 883 }
 884
 885 static int cap_key_getsecurity(struct key *key, char **_buffer)
 886 {
 887         *_buffer = NULL;
 888         return 0;
 889 }
 890
 891 #endif /* CONFIG_KEYS */
 892
 893 #ifdef CONFIG_AUDIT
 894 static int cap_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
 895 {
 896         return 0;
 897 }
 898
 899 static int cap_audit_rule_known(struct audit_krule *krule)
 900 {
 901         return 0;
 902 }
 903
 904 static int cap_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
 905                                 struct audit_context *actx)
 906 {
 907         return 0;
 908 }
 909
 910 static void cap_audit_rule_free(void *lsmrule)
 911 {
 912 }
 913 #endif /* CONFIG_AUDIT */
 914
 915 #define set_to_cap_if_null(ops, function)                               \
 916         do {                                                            \
 917                 if (!ops->function) {                                   \
 918                         ops->function = cap_##function;                 \
 919                         pr_debug("Had to override the " #function       \
 920                                  " security operation with the default.\n");\
 921                         }                                               \
 922         } while (0)
 923
 924 void __init security_fixup_ops(struct security_operations *ops)
 925 {
 926         set_to_cap_if_null(ops, binder_set_context_mgr);
 927         set_to_cap_if_null(ops, binder_transaction);
 928         set_to_cap_if_null(ops, binder_transfer_binder);
 929         set_to_cap_if_null(ops, binder_transfer_file);
 930         set_to_cap_if_null(ops, ptrace_access_check);
 931         set_to_cap_if_null(ops, ptrace_traceme);
 932         set_to_cap_if_null(ops, capget);
 933         set_to_cap_if_null(ops, capset);
 934         set_to_cap_if_null(ops, capable);
 935         set_to_cap_if_null(ops, quotactl);
 936         set_to_cap_if_null(ops, quota_on);
 937         set_to_cap_if_null(ops, syslog);
 938         set_to_cap_if_null(ops, settime);
 939         set_to_cap_if_null(ops, vm_enough_memory);
 940         set_to_cap_if_null(ops, bprm_set_creds);
 941         set_to_cap_if_null(ops, bprm_committing_creds);
 942         set_to_cap_if_null(ops, bprm_committed_creds);
 943         set_to_cap_if_null(ops, bprm_check_security);
 944         set_to_cap_if_null(ops, bprm_secureexec);
 945         set_to_cap_if_null(ops, sb_alloc_security);
 946         set_to_cap_if_null(ops, sb_free_security);
 947         set_to_cap_if_null(ops, sb_copy_data);
 948         set_to_cap_if_null(ops, sb_remount);
 949         set_to_cap_if_null(ops, sb_kern_mount);
 950         set_to_cap_if_null(ops, sb_show_options);
 951         set_to_cap_if_null(ops, sb_statfs);
 952         set_to_cap_if_null(ops, sb_mount);
 953         set_to_cap_if_null(ops, sb_umount);
 954         set_to_cap_if_null(ops, sb_pivotroot);
 955         set_to_cap_if_null(ops, sb_set_mnt_opts);
 956         set_to_cap_if_null(ops, sb_clone_mnt_opts);
 957         set_to_cap_if_null(ops, sb_parse_opts_str);
 958         set_to_cap_if_null(ops, inode_alloc_security);
 959         set_to_cap_if_null(ops, inode_free_security);
 960         set_to_cap_if_null(ops, inode_init_security);
 961         set_to_cap_if_null(ops, inode_create);
 962         set_to_cap_if_null(ops, inode_link);
 963         set_to_cap_if_null(ops, inode_unlink);
 964         set_to_cap_if_null(ops, inode_symlink);
 965         set_to_cap_if_null(ops, inode_mkdir);
 966         set_to_cap_if_null(ops, inode_rmdir);
 967         set_to_cap_if_null(ops, inode_mknod);
 968         set_to_cap_if_null(ops, inode_rename);
 969         set_to_cap_if_null(ops, inode_readlink);
 970         set_to_cap_if_null(ops, inode_follow_link);
 971         set_to_cap_if_null(ops, inode_permission);
 972         set_to_cap_if_null(ops, inode_setattr);
 973         set_to_cap_if_null(ops, inode_getattr);
 974         set_to_cap_if_null(ops, inode_setxattr);
 975         set_to_cap_if_null(ops, inode_post_setxattr);
 976         set_to_cap_if_null(ops, inode_getxattr);
 977         set_to_cap_if_null(ops, inode_listxattr);
 978         set_to_cap_if_null(ops, inode_removexattr);
 979         set_to_cap_if_null(ops, inode_need_killpriv);
 980         set_to_cap_if_null(ops, inode_killpriv);
 981         set_to_cap_if_null(ops, inode_getsecurity);
 982         set_to_cap_if_null(ops, inode_setsecurity);
 983         set_to_cap_if_null(ops, inode_listsecurity);
 984         set_to_cap_if_null(ops, inode_getsecid);
 985 #ifdef CONFIG_SECURITY_PATH
 986         set_to_cap_if_null(ops, path_mknod);
 987         set_to_cap_if_null(ops, path_mkdir);
 988         set_to_cap_if_null(ops, path_rmdir);
 989         set_to_cap_if_null(ops, path_unlink);
 990         set_to_cap_if_null(ops, path_symlink);
 991         set_to_cap_if_null(ops, path_link);
 992         set_to_cap_if_null(ops, path_rename);
 993         set_to_cap_if_null(ops, path_truncate);
 994         set_to_cap_if_null(ops, path_chmod);
 995         set_to_cap_if_null(ops, path_chown);
 996         set_to_cap_if_null(ops, path_chroot);
 997 #endif
 998         set_to_cap_if_null(ops, file_permission);
 999         set_to_cap_if_null(ops, file_alloc_security);
1000         set_to_cap_if_null(ops, file_free_security);
1001         set_to_cap_if_null(ops, file_ioctl);
1002         set_to_cap_if_null(ops, mmap_addr);
1003         set_to_cap_if_null(ops, mmap_file);
1004         set_to_cap_if_null(ops, file_mprotect);
1005         set_to_cap_if_null(ops, file_lock);
1006         set_to_cap_if_null(ops, file_fcntl);
1007         set_to_cap_if_null(ops, file_set_fowner);
1008         set_to_cap_if_null(ops, file_send_sigiotask);
1009         set_to_cap_if_null(ops, file_receive);
1010         set_to_cap_if_null(ops, file_open);
1011         set_to_cap_if_null(ops, task_create);
1012         set_to_cap_if_null(ops, task_free);
1013         set_to_cap_if_null(ops, cred_alloc_blank);
1014         set_to_cap_if_null(ops, cred_free);
1015         set_to_cap_if_null(ops, cred_prepare);
1016         set_to_cap_if_null(ops, cred_transfer);
1017         set_to_cap_if_null(ops, kernel_act_as);
1018         set_to_cap_if_null(ops, kernel_create_files_as);
1019         set_to_cap_if_null(ops, kernel_module_request);
1020         set_to_cap_if_null(ops, kernel_module_from_file);
1021         set_to_cap_if_null(ops, task_fix_setuid);
1022         set_to_cap_if_null(ops, task_setpgid);
1023         set_to_cap_if_null(ops, task_getpgid);
1024         set_to_cap_if_null(ops, task_getsid);
1025         set_to_cap_if_null(ops, task_getsecid);
1026         set_to_cap_if_null(ops, task_setnice);
1027         set_to_cap_if_null(ops, task_setioprio);
1028         set_to_cap_if_null(ops, task_getioprio);
1029         set_to_cap_if_null(ops, task_setrlimit);
1030         set_to_cap_if_null(ops, task_setscheduler);
1031         set_to_cap_if_null(ops, task_getscheduler);
1032         set_to_cap_if_null(ops, task_movememory);
1033         set_to_cap_if_null(ops, task_wait);
1034         set_to_cap_if_null(ops, task_kill);
1035         set_to_cap_if_null(ops, task_prctl);
1036         set_to_cap_if_null(ops, task_to_inode);
1037         set_to_cap_if_null(ops, ipc_permission);
1038         set_to_cap_if_null(ops, ipc_getsecid);
1039         set_to_cap_if_null(ops, msg_msg_alloc_security);
1040         set_to_cap_if_null(ops, msg_msg_free_security);
1041         set_to_cap_if_null(ops, msg_queue_alloc_security);
1042         set_to_cap_if_null(ops, msg_queue_free_security);
1043         set_to_cap_if_null(ops, msg_queue_associate);
1044         set_to_cap_if_null(ops, msg_queue_msgctl);
1045         set_to_cap_if_null(ops, msg_queue_msgsnd);
1046         set_to_cap_if_null(ops, msg_queue_msgrcv);
1047         set_to_cap_if_null(ops, shm_alloc_security);
1048         set_to_cap_if_null(ops, shm_free_security);
1049         set_to_cap_if_null(ops, shm_associate);
1050         set_to_cap_if_null(ops, shm_shmctl);
1051         set_to_cap_if_null(ops, shm_shmat);
1052         set_to_cap_if_null(ops, sem_alloc_security);
1053         set_to_cap_if_null(ops, sem_free_security);
1054         set_to_cap_if_null(ops, sem_associate);
1055         set_to_cap_if_null(ops, sem_semctl);
1056         set_to_cap_if_null(ops, sem_semop);
1057         set_to_cap_if_null(ops, netlink_send);
1058         set_to_cap_if_null(ops, d_instantiate);
1059         set_to_cap_if_null(ops, getprocattr);
1060         set_to_cap_if_null(ops, setprocattr);
1061         set_to_cap_if_null(ops, secid_to_secctx);
1062         set_to_cap_if_null(ops, secctx_to_secid);
1063         set_to_cap_if_null(ops, release_secctx);
1064         set_to_cap_if_null(ops, inode_notifysecctx);
1065         set_to_cap_if_null(ops, inode_setsecctx);
1066         set_to_cap_if_null(ops, inode_getsecctx);
1067 #ifdef CONFIG_SECURITY_NETWORK
1068         set_to_cap_if_null(ops, unix_stream_connect);
1069         set_to_cap_if_null(ops, unix_may_send);
1070         set_to_cap_if_null(ops, socket_create);
1071         set_to_cap_if_null(ops, socket_post_create);
1072         set_to_cap_if_null(ops, socket_bind);
1073         set_to_cap_if_null(ops, socket_connect);
1074         set_to_cap_if_null(ops, socket_listen);
1075         set_to_cap_if_null(ops, socket_accept);
1076         set_to_cap_if_null(ops, socket_sendmsg);
1077         set_to_cap_if_null(ops, socket_recvmsg);
1078         set_to_cap_if_null(ops, socket_getsockname);
1079         set_to_cap_if_null(ops, socket_getpeername);
1080         set_to_cap_if_null(ops, socket_setsockopt);
1081         set_to_cap_if_null(ops, socket_getsockopt);
1082         set_to_cap_if_null(ops, socket_shutdown);
1083         set_to_cap_if_null(ops, socket_sock_rcv_skb);
1084         set_to_cap_if_null(ops, socket_getpeersec_stream);
1085         set_to_cap_if_null(ops, socket_getpeersec_dgram);
1086         set_to_cap_if_null(ops, sk_alloc_security);
1087         set_to_cap_if_null(ops, sk_free_security);
1088         set_to_cap_if_null(ops, sk_clone_security);
1089         set_to_cap_if_null(ops, sk_getsecid);
1090         set_to_cap_if_null(ops, sock_graft);
1091         set_to_cap_if_null(ops, inet_conn_request);
1092         set_to_cap_if_null(ops, inet_csk_clone);
1093         set_to_cap_if_null(ops, inet_conn_established);
1094         set_to_cap_if_null(ops, secmark_relabel_packet);
1095         set_to_cap_if_null(ops, secmark_refcount_inc);
1096         set_to_cap_if_null(ops, secmark_refcount_dec);
1097         set_to_cap_if_null(ops, req_classify_flow);
1098         set_to_cap_if_null(ops, tun_dev_alloc_security);
1099         set_to_cap_if_null(ops, tun_dev_free_security);
1100         set_to_cap_if_null(ops, tun_dev_create);
1101         set_to_cap_if_null(ops, tun_dev_open);
1102         set_to_cap_if_null(ops, tun_dev_attach_queue);
1103         set_to_cap_if_null(ops, tun_dev_attach);
1104         set_to_cap_if_null(ops, skb_owned_by);
1105 #endif  /* CONFIG_SECURITY_NETWORK */
1106 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1107         set_to_cap_if_null(ops, xfrm_policy_alloc_security);
1108         set_to_cap_if_null(ops, xfrm_policy_clone_security);
1109         set_to_cap_if_null(ops, xfrm_policy_free_security);
1110         set_to_cap_if_null(ops, xfrm_policy_delete_security);
1111         set_to_cap_if_null(ops, xfrm_state_alloc_security);
1112         set_to_cap_if_null(ops, xfrm_state_free_security);
1113         set_to_cap_if_null(ops, xfrm_state_delete_security);
1114         set_to_cap_if_null(ops, xfrm_policy_lookup);
1115         set_to_cap_if_null(ops, xfrm_state_pol_flow_match);
1116         set_to_cap_if_null(ops, xfrm_decode_session);
1117 #endif  /* CONFIG_SECURITY_NETWORK_XFRM */
1118 #ifdef CONFIG_KEYS
1119         set_to_cap_if_null(ops, key_alloc);
1120         set_to_cap_if_null(ops, key_free);
1121         set_to_cap_if_null(ops, key_permission);
1122         set_to_cap_if_null(ops, key_getsecurity);
1123 #endif  /* CONFIG_KEYS */
1124 #ifdef CONFIG_AUDIT
1125         set_to_cap_if_null(ops, audit_rule_init);
1126         set_to_cap_if_null(ops, audit_rule_known);
1127         set_to_cap_if_null(ops, audit_rule_match);
1128         set_to_cap_if_null(ops, audit_rule_free);
1129 #endif
1130 }