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_acct(struct file *file)
  16 {
  17         return 0;
  18 }
  19
  20 static int cap_sysctl(ctl_table *table, int op)
  21 {
  22         return 0;
  23 }
  24
  25 static int cap_quotactl(int cmds, int type, int id, struct super_block *sb)
  26 {
  27         return 0;
  28 }
  29
  30 static int cap_quota_on(struct dentry *dentry)
  31 {
  32         return 0;
  33 }
  34
  35 static int cap_bprm_check_security (struct linux_binprm *bprm)
  36 {
  37         return 0;
  38 }
  39
  40 static void cap_bprm_committing_creds(struct linux_binprm *bprm)
  41 {
  42 }
  43
  44 static void cap_bprm_committed_creds(struct linux_binprm *bprm)
  45 {
  46 }
  47
  48 static int cap_sb_alloc_security(struct super_block *sb)
  49 {
  50         return 0;
  51 }
  52
  53 static void cap_sb_free_security(struct super_block *sb)
  54 {
  55 }
  56
  57 static int cap_sb_copy_data(char *orig, char *copy)
  58 {
  59         return 0;
  60 }
  61
  62 static int cap_sb_kern_mount(struct super_block *sb, int flags, void *data)
  63 {
  64         return 0;
  65 }
  66
  67 static int cap_sb_show_options(struct seq_file *m, struct super_block *sb)
  68 {
  69         return 0;
  70 }
  71
  72 static int cap_sb_statfs(struct dentry *dentry)
  73 {
  74         return 0;
  75 }
  76
  77 static int cap_sb_mount(char *dev_name, struct path *path, char *type,
  78                         unsigned long flags, void *data)
  79 {
  80         return 0;
  81 }
  82
  83 static int cap_sb_check_sb(struct vfsmount *mnt, struct path *path)
  84 {
  85         return 0;
  86 }
  87
  88 static int cap_sb_umount(struct vfsmount *mnt, int flags)
  89 {
  90         return 0;
  91 }
  92
  93 static void cap_sb_umount_close(struct vfsmount *mnt)
  94 {
  95 }
  96
  97 static void cap_sb_umount_busy(struct vfsmount *mnt)
  98 {
  99 }
 100
 101 static void cap_sb_post_remount(struct vfsmount *mnt, unsigned long flags,
 102                                 void *data)
 103 {
 104 }
 105
 106 static void cap_sb_post_addmount(struct vfsmount *mnt, struct path *path)
 107 {
 108 }
 109
 110 static int cap_sb_pivotroot(struct path *old_path, struct path *new_path)
 111 {
 112         return 0;
 113 }
 114
 115 static void cap_sb_post_pivotroot(struct path *old_path, struct path *new_path)
 116 {
 117 }
 118
 119 static int cap_sb_set_mnt_opts(struct super_block *sb,
 120                                struct security_mnt_opts *opts)
 121 {
 122         if (unlikely(opts->num_mnt_opts))
 123                 return -EOPNOTSUPP;
 124         return 0;
 125 }
 126
 127 static void cap_sb_clone_mnt_opts(const struct super_block *oldsb,
 128                                   struct super_block *newsb)
 129 {
 130 }
 131
 132 static int cap_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
 133 {
 134         return 0;
 135 }
 136
 137 static int cap_inode_alloc_security(struct inode *inode)
 138 {
 139         return 0;
 140 }
 141
 142 static void cap_inode_free_security(struct inode *inode)
 143 {
 144 }
 145
 146 static int cap_inode_init_security(struct inode *inode, struct inode *dir,
 147                                    char **name, void **value, size_t *len)
 148 {
 149         return -EOPNOTSUPP;
 150 }
 151
 152 static int cap_inode_create(struct inode *inode, struct dentry *dentry,
 153                             int mask)
 154 {
 155         return 0;
 156 }
 157
 158 static int cap_inode_link(struct dentry *old_dentry, struct inode *inode,
 159                           struct dentry *new_dentry)
 160 {
 161         return 0;
 162 }
 163
 164 static int cap_inode_unlink(struct inode *inode, struct dentry *dentry)
 165 {
 166         return 0;
 167 }
 168
 169 static int cap_inode_symlink(struct inode *inode, struct dentry *dentry,
 170                              const char *name)
 171 {
 172         return 0;
 173 }
 174
 175 static int cap_inode_mkdir(struct inode *inode, struct dentry *dentry,
 176                            int mask)
 177 {
 178         return 0;
 179 }
 180
 181 static int cap_inode_rmdir(struct inode *inode, struct dentry *dentry)
 182 {
 183         return 0;
 184 }
 185
 186 static int cap_inode_mknod(struct inode *inode, struct dentry *dentry,
 187                            int mode, dev_t dev)
 188 {
 189         return 0;
 190 }
 191
 192 static int cap_inode_rename(struct inode *old_inode, struct dentry *old_dentry,
 193                             struct inode *new_inode, struct dentry *new_dentry)
 194 {
 195         return 0;
 196 }
 197
 198 static int cap_inode_readlink(struct dentry *dentry)
 199 {
 200         return 0;
 201 }
 202
 203 static int cap_inode_follow_link(struct dentry *dentry,
 204                                  struct nameidata *nameidata)
 205 {
 206         return 0;
 207 }
 208
 209 static int cap_inode_permission(struct inode *inode, int mask)
 210 {
 211         return 0;
 212 }
 213
 214 static int cap_inode_setattr(struct dentry *dentry, struct iattr *iattr)
 215 {
 216         return 0;
 217 }
 218
 219 static int cap_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
 220 {
 221         return 0;
 222 }
 223
 224 static void cap_inode_delete(struct inode *ino)
 225 {
 226 }
 227
 228 static void cap_inode_post_setxattr(struct dentry *dentry, const char *name,
 229                                     const void *value, size_t size, int flags)
 230 {
 231 }
 232
 233 static int cap_inode_getxattr(struct dentry *dentry, const char *name)
 234 {
 235         return 0;
 236 }
 237
 238 static int cap_inode_listxattr(struct dentry *dentry)
 239 {
 240         return 0;
 241 }
 242
 243 static int cap_inode_getsecurity(const struct inode *inode, const char *name,
 244                                  void **buffer, bool alloc)
 245 {
 246         return -EOPNOTSUPP;
 247 }
 248
 249 static int cap_inode_setsecurity(struct inode *inode, const char *name,
 250                                  const void *value, size_t size, int flags)
 251 {
 252         return -EOPNOTSUPP;
 253 }
 254
 255 static int cap_inode_listsecurity(struct inode *inode, char *buffer,
 256                                   size_t buffer_size)
 257 {
 258         return 0;
 259 }
 260
 261 static void cap_inode_getsecid(const struct inode *inode, u32 *secid)
 262 {
 263         *secid = 0;
 264 }
 265
 266 #ifdef CONFIG_SECURITY_PATH
 267 static int cap_path_mknod(struct path *dir, struct dentry *dentry, int mode,
 268                           unsigned int dev)
 269 {
 270         return 0;
 271 }
 272
 273 static int cap_path_mkdir(struct path *dir, struct dentry *dentry, int mode)
 274 {
 275         return 0;
 276 }
 277
 278 static int cap_path_rmdir(struct path *dir, struct dentry *dentry)
 279 {
 280         return 0;
 281 }
 282
 283 static int cap_path_unlink(struct path *dir, struct dentry *dentry)
 284 {
 285         return 0;
 286 }
 287
 288 static int cap_path_symlink(struct path *dir, struct dentry *dentry,
 289                             const char *old_name)
 290 {
 291         return 0;
 292 }
 293
 294 static int cap_path_link(struct dentry *old_dentry, struct path *new_dir,
 295                          struct dentry *new_dentry)
 296 {
 297         return 0;
 298 }
 299
 300 static int cap_path_rename(struct path *old_path, struct dentry *old_dentry,
 301                            struct path *new_path, struct dentry *new_dentry)
 302 {
 303         return 0;
 304 }
 305
 306 static int cap_path_truncate(struct path *path, loff_t length,
 307                              unsigned int time_attrs)
 308 {
 309         return 0;
 310 }
 311
 312 static int cap_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
 313                           mode_t mode)
 314 {
 315         return 0;
 316 }
 317
 318 static int cap_path_chown(struct path *path, uid_t uid, gid_t gid)
 319 {
 320         return 0;
 321 }
 322
 323 static int cap_path_chroot(struct path *root)
 324 {
 325         return 0;
 326 }
 327 #endif
 328
 329 static int cap_file_permission(struct file *file, int mask)
 330 {
 331         return 0;
 332 }
 333
 334 static int cap_file_alloc_security(struct file *file)
 335 {
 336         return 0;
 337 }
 338
 339 static void cap_file_free_security(struct file *file)
 340 {
 341 }
 342
 343 static int cap_file_ioctl(struct file *file, unsigned int command,
 344                           unsigned long arg)
 345 {
 346         return 0;
 347 }
 348
 349 static int cap_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
 350                              unsigned long prot)
 351 {
 352         return 0;
 353 }
 354
 355 static int cap_file_lock(struct file *file, unsigned int cmd)
 356 {
 357         return 0;
 358 }
 359
 360 static int cap_file_fcntl(struct file *file, unsigned int cmd,
 361                           unsigned long arg)
 362 {
 363         return 0;
 364 }
 365
 366 static int cap_file_set_fowner(struct file *file)
 367 {
 368         return 0;
 369 }
 370
 371 static int cap_file_send_sigiotask(struct task_struct *tsk,
 372                                    struct fown_struct *fown, int sig)
 373 {
 374         return 0;
 375 }
 376
 377 static int cap_file_receive(struct file *file)
 378 {
 379         return 0;
 380 }
 381
 382 static int cap_dentry_open(struct file *file, const struct cred *cred)
 383 {
 384         return 0;
 385 }
 386
 387 static int cap_task_create(unsigned long clone_flags)
 388 {
 389         return 0;
 390 }
 391
 392 static int cap_cred_alloc_blank(struct cred *cred, gfp_t gfp)
 393 {
 394         return 0;
 395 }
 396
 397 static void cap_cred_free(struct cred *cred)
 398 {
 399 }
 400
 401 static int cap_cred_prepare(struct cred *new, const struct cred *old, gfp_t gfp)
 402 {
 403         return 0;
 404 }
 405
 406 static void cap_cred_commit(struct cred *new, const struct cred *old)
 407 {
 408 }
 409
 410 static void cap_cred_transfer(struct cred *new, const struct cred *old)
 411 {
 412 }
 413
 414 static int cap_kernel_act_as(struct cred *new, u32 secid)
 415 {
 416         return 0;
 417 }
 418
 419 static int cap_kernel_create_files_as(struct cred *new, struct inode *inode)
 420 {
 421         return 0;
 422 }
 423
 424 static int cap_kernel_module_request(char *kmod_name)
 425 {
 426         return 0;
 427 }
 428
 429 static int cap_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags)
 430 {
 431         return 0;
 432 }
 433
 434 static int cap_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags)
 435 {
 436         return 0;
 437 }
 438
 439 static int cap_task_setpgid(struct task_struct *p, pid_t pgid)
 440 {
 441         return 0;
 442 }
 443
 444 static int cap_task_getpgid(struct task_struct *p)
 445 {
 446         return 0;
 447 }
 448
 449 static int cap_task_getsid(struct task_struct *p)
 450 {
 451         return 0;
 452 }
 453
 454 static void cap_task_getsecid(struct task_struct *p, u32 *secid)
 455 {
 456         *secid = 0;
 457 }
 458
 459 static int cap_task_setgroups(struct group_info *group_info)
 460 {
 461         return 0;
 462 }
 463
 464 static int cap_task_getioprio(struct task_struct *p)
 465 {
 466         return 0;
 467 }
 468
 469 static int cap_task_setrlimit(unsigned int resource, struct rlimit *new_rlim)
 470 {
 471         return 0;
 472 }
 473
 474 static int cap_task_getscheduler(struct task_struct *p)
 475 {
 476         return 0;
 477 }
 478
 479 static int cap_task_movememory(struct task_struct *p)
 480 {
 481         return 0;
 482 }
 483
 484 static int cap_task_wait(struct task_struct *p)
 485 {
 486         return 0;
 487 }
 488
 489 static int cap_task_kill(struct task_struct *p, struct siginfo *info,
 490                          int sig, u32 secid)
 491 {
 492         return 0;
 493 }
 494
 495 static void cap_task_to_inode(struct task_struct *p, struct inode *inode)
 496 {
 497 }
 498
 499 static int cap_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
 500 {
 501         return 0;
 502 }
 503
 504 static void cap_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
 505 {
 506         *secid = 0;
 507 }
 508
 509 static int cap_msg_msg_alloc_security(struct msg_msg *msg)
 510 {
 511         return 0;
 512 }
 513
 514 static void cap_msg_msg_free_security(struct msg_msg *msg)
 515 {
 516 }
 517
 518 static int cap_msg_queue_alloc_security(struct msg_queue *msq)
 519 {
 520         return 0;
 521 }
 522
 523 static void cap_msg_queue_free_security(struct msg_queue *msq)
 524 {
 525 }
 526
 527 static int cap_msg_queue_associate(struct msg_queue *msq, int msqflg)
 528 {
 529         return 0;
 530 }
 531
 532 static int cap_msg_queue_msgctl(struct msg_queue *msq, int cmd)
 533 {
 534         return 0;
 535 }
 536
 537 static int cap_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
 538                                 int msgflg)
 539 {
 540         return 0;
 541 }
 542
 543 static int cap_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
 544                                 struct task_struct *target, long type, int mode)
 545 {
 546         return 0;
 547 }
 548
 549 static int cap_shm_alloc_security(struct shmid_kernel *shp)
 550 {
 551         return 0;
 552 }
 553
 554 static void cap_shm_free_security(struct shmid_kernel *shp)
 555 {
 556 }
 557
 558 static int cap_shm_associate(struct shmid_kernel *shp, int shmflg)
 559 {
 560         return 0;
 561 }
 562
 563 static int cap_shm_shmctl(struct shmid_kernel *shp, int cmd)
 564 {
 565         return 0;
 566 }
 567
 568 static int cap_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr,
 569                          int shmflg)
 570 {
 571         return 0;
 572 }
 573
 574 static int cap_sem_alloc_security(struct sem_array *sma)
 575 {
 576         return 0;
 577 }
 578
 579 static void cap_sem_free_security(struct sem_array *sma)
 580 {
 581 }
 582
 583 static int cap_sem_associate(struct sem_array *sma, int semflg)
 584 {
 585         return 0;
 586 }
 587
 588 static int cap_sem_semctl(struct sem_array *sma, int cmd)
 589 {
 590         return 0;
 591 }
 592
 593 static int cap_sem_semop(struct sem_array *sma, struct sembuf *sops,
 594                          unsigned nsops, int alter)
 595 {
 596         return 0;
 597 }
 598
 599 #ifdef CONFIG_SECURITY_NETWORK
 600 static int cap_unix_stream_connect(struct socket *sock, struct socket *other,
 601                                    struct sock *newsk)
 602 {
 603         return 0;
 604 }
 605
 606 static int cap_unix_may_send(struct socket *sock, struct socket *other)
 607 {
 608         return 0;
 609 }
 610
 611 static int cap_socket_create(int family, int type, int protocol, int kern)
 612 {
 613         return 0;
 614 }
 615
 616 static int cap_socket_post_create(struct socket *sock, int family, int type,
 617                                   int protocol, int kern)
 618 {
 619         return 0;
 620 }
 621
 622 static int cap_socket_bind(struct socket *sock, struct sockaddr *address,
 623                            int addrlen)
 624 {
 625         return 0;
 626 }
 627
 628 static int cap_socket_connect(struct socket *sock, struct sockaddr *address,
 629                               int addrlen)
 630 {
 631         return 0;
 632 }
 633
 634 static int cap_socket_listen(struct socket *sock, int backlog)
 635 {
 636         return 0;
 637 }
 638
 639 static int cap_socket_accept(struct socket *sock, struct socket *newsock)
 640 {
 641         return 0;
 642 }
 643
 644 static int cap_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
 645 {
 646         return 0;
 647 }
 648
 649 static int cap_socket_recvmsg(struct socket *sock, struct msghdr *msg,
 650                               int size, int flags)
 651 {
 652         return 0;
 653 }
 654
 655 static int cap_socket_getsockname(struct socket *sock)
 656 {
 657         return 0;
 658 }
 659
 660 static int cap_socket_getpeername(struct socket *sock)
 661 {
 662         return 0;
 663 }
 664
 665 static int cap_socket_setsockopt(struct socket *sock, int level, int optname)
 666 {
 667         return 0;
 668 }
 669
 670 static int cap_socket_getsockopt(struct socket *sock, int level, int optname)
 671 {
 672         return 0;
 673 }
 674
 675 static int cap_socket_shutdown(struct socket *sock, int how)
 676 {
 677         return 0;
 678 }
 679
 680 static int cap_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
 681 {
 682         return 0;
 683 }
 684
 685 static int cap_socket_getpeersec_stream(struct socket *sock,
 686                                         char __user *optval,
 687                                         int __user *optlen, unsigned len)
 688 {
 689         return -ENOPROTOOPT;
 690 }
 691
 692 static int cap_socket_getpeersec_dgram(struct socket *sock,
 693                                        struct sk_buff *skb, u32 *secid)
 694 {
 695         return -ENOPROTOOPT;
 696 }
 697
 698 static int cap_sk_alloc_security(struct sock *sk, int family, gfp_t priority)
 699 {
 700         return 0;
 701 }
 702
 703 static void cap_sk_free_security(struct sock *sk)
 704 {
 705 }
 706
 707 static void cap_sk_clone_security(const struct sock *sk, struct sock *newsk)
 708 {
 709 }
 710
 711 static void cap_sk_getsecid(struct sock *sk, u32 *secid)
 712 {
 713 }
 714
 715 static void cap_sock_graft(struct sock *sk, struct socket *parent)
 716 {
 717 }
 718
 719 static int cap_inet_conn_request(struct sock *sk, struct sk_buff *skb,
 720                                  struct request_sock *req)
 721 {
 722         return 0;
 723 }
 724
 725 static void cap_inet_csk_clone(struct sock *newsk,
 726                                const struct request_sock *req)
 727 {
 728 }
 729
 730 static void cap_inet_conn_established(struct sock *sk, struct sk_buff *skb)
 731 {
 732 }
 733
 734
 735
 736 static void cap_req_classify_flow(const struct request_sock *req,
 737                                   struct flowi *fl)
 738 {
 739 }
 740
 741 static int cap_tun_dev_create(void)
 742 {
 743         return 0;
 744 }
 745
 746 static void cap_tun_dev_post_create(struct sock *sk)
 747 {
 748 }
 749
 750 static int cap_tun_dev_attach(struct sock *sk)
 751 {
 752         return 0;
 753 }
 754 #endif  /* CONFIG_SECURITY_NETWORK */
 755
 756 #ifdef CONFIG_SECURITY_NETWORK_XFRM
 757 static int cap_xfrm_policy_alloc_security(struct xfrm_sec_ctx **ctxp,
 758                                           struct xfrm_user_sec_ctx *sec_ctx)
 759 {
 760         return 0;
 761 }
 762
 763 static int cap_xfrm_policy_clone_security(struct xfrm_sec_ctx *old_ctx,
 764                                           struct xfrm_sec_ctx **new_ctxp)
 765 {
 766         return 0;
 767 }
 768
 769 static void cap_xfrm_policy_free_security(struct xfrm_sec_ctx *ctx)
 770 {
 771 }
 772
 773 static int cap_xfrm_policy_delete_security(struct xfrm_sec_ctx *ctx)
 774 {
 775         return 0;
 776 }
 777
 778 static int cap_xfrm_state_alloc_security(struct xfrm_state *x,
 779                                          struct xfrm_user_sec_ctx *sec_ctx,
 780                                          u32 secid)
 781 {
 782         return 0;
 783 }
 784
 785 static void cap_xfrm_state_free_security(struct xfrm_state *x)
 786 {
 787 }
 788
 789 static int cap_xfrm_state_delete_security(struct xfrm_state *x)
 790 {
 791         return 0;
 792 }
 793
 794 static int cap_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 sk_sid, u8 dir)
 795 {
 796         return 0;
 797 }
 798
 799 static int cap_xfrm_state_pol_flow_match(struct xfrm_state *x,
 800                                          struct xfrm_policy *xp,
 801                                          struct flowi *fl)
 802 {
 803         return 1;
 804 }
 805
 806 static int cap_xfrm_decode_session(struct sk_buff *skb, u32 *fl, int ckall)
 807 {
 808         return 0;
 809 }
 810
 811 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
 812 static void cap_d_instantiate(struct dentry *dentry, struct inode *inode)
 813 {
 814 }
 815
 816 static int cap_getprocattr(struct task_struct *p, char *name, char **value)
 817 {
 818         return -EINVAL;
 819 }
 820
 821 static int cap_setprocattr(struct task_struct *p, char *name, void *value,
 822                            size_t size)
 823 {
 824         return -EINVAL;
 825 }
 826
 827 static int cap_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
 828 {
 829         return -EOPNOTSUPP;
 830 }
 831
 832 static int cap_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
 833 {
 834         return -EOPNOTSUPP;
 835 }
 836
 837 static void cap_release_secctx(char *secdata, u32 seclen)
 838 {
 839 }
 840
 841 static int cap_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
 842 {
 843         return 0;
 844 }
 845
 846 static int cap_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
 847 {
 848         return 0;
 849 }
 850
 851 static int cap_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
 852 {
 853         return 0;
 854 }
 855 #ifdef CONFIG_KEYS
 856 static int cap_key_alloc(struct key *key, const struct cred *cred,
 857                          unsigned long flags)
 858 {
 859         return 0;
 860 }
 861
 862 static void cap_key_free(struct key *key)
 863 {
 864 }
 865
 866 static int cap_key_permission(key_ref_t key_ref, const struct cred *cred,
 867                               key_perm_t perm)
 868 {
 869         return 0;
 870 }
 871
 872 static int cap_key_getsecurity(struct key *key, char **_buffer)
 873 {
 874         *_buffer = NULL;
 875         return 0;
 876 }
 877
 878 static int cap_key_session_to_parent(const struct cred *cred,
 879                                      const struct cred *parent_cred,
 880                                      struct key *key)
 881 {
 882         return 0;
 883 }
 884
 885 #endif /* CONFIG_KEYS */
 886
 887 #ifdef CONFIG_AUDIT
 888 static int cap_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
 889 {
 890         return 0;
 891 }
 892
 893 static int cap_audit_rule_known(struct audit_krule *krule)
 894 {
 895         return 0;
 896 }
 897
 898 static int cap_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
 899                                 struct audit_context *actx)
 900 {
 901         return 0;
 902 }
 903
 904 static void cap_audit_rule_free(void *lsmrule)
 905 {
 906 }
 907 #endif /* CONFIG_AUDIT */
 908
 909 struct security_operations default_security_ops = {
 910         .name   = "default",
 911 };
 912
 913 #define set_to_cap_if_null(ops, function)                               \
 914         do {                                                            \
 915                 if (!ops->function) {                                   \
 916                         ops->function = cap_##function;                 \
 917                         pr_debug("Had to override the " #function       \
 918                                  " security operation with the default.\n");\
 919                         }                                               \
 920         } while (0)
 921
 922 void security_fixup_ops(struct security_operations *ops)
 923 {
 924         set_to_cap_if_null(ops, ptrace_access_check);
 925         set_to_cap_if_null(ops, ptrace_traceme);
 926         set_to_cap_if_null(ops, capget);
 927         set_to_cap_if_null(ops, capset);
 928         set_to_cap_if_null(ops, acct);
 929         set_to_cap_if_null(ops, capable);
 930         set_to_cap_if_null(ops, quotactl);
 931         set_to_cap_if_null(ops, quota_on);
 932         set_to_cap_if_null(ops, sysctl);
 933         set_to_cap_if_null(ops, syslog);
 934         set_to_cap_if_null(ops, settime);
 935         set_to_cap_if_null(ops, vm_enough_memory);
 936         set_to_cap_if_null(ops, bprm_set_creds);
 937         set_to_cap_if_null(ops, bprm_committing_creds);
 938         set_to_cap_if_null(ops, bprm_committed_creds);
 939         set_to_cap_if_null(ops, bprm_check_security);
 940         set_to_cap_if_null(ops, bprm_secureexec);
 941         set_to_cap_if_null(ops, sb_alloc_security);
 942         set_to_cap_if_null(ops, sb_free_security);
 943         set_to_cap_if_null(ops, sb_copy_data);
 944         set_to_cap_if_null(ops, sb_kern_mount);
 945         set_to_cap_if_null(ops, sb_show_options);
 946         set_to_cap_if_null(ops, sb_statfs);
 947         set_to_cap_if_null(ops, sb_mount);
 948         set_to_cap_if_null(ops, sb_check_sb);
 949         set_to_cap_if_null(ops, sb_umount);
 950         set_to_cap_if_null(ops, sb_umount_close);
 951         set_to_cap_if_null(ops, sb_umount_busy);
 952         set_to_cap_if_null(ops, sb_post_remount);
 953         set_to_cap_if_null(ops, sb_post_addmount);
 954         set_to_cap_if_null(ops, sb_pivotroot);
 955         set_to_cap_if_null(ops, sb_post_pivotroot);
 956         set_to_cap_if_null(ops, sb_set_mnt_opts);
 957         set_to_cap_if_null(ops, sb_clone_mnt_opts);
 958         set_to_cap_if_null(ops, sb_parse_opts_str);
 959         set_to_cap_if_null(ops, inode_alloc_security);
 960         set_to_cap_if_null(ops, inode_free_security);
 961         set_to_cap_if_null(ops, inode_init_security);
 962         set_to_cap_if_null(ops, inode_create);
 963         set_to_cap_if_null(ops, inode_link);
 964         set_to_cap_if_null(ops, inode_unlink);
 965         set_to_cap_if_null(ops, inode_symlink);
 966         set_to_cap_if_null(ops, inode_mkdir);
 967         set_to_cap_if_null(ops, inode_rmdir);
 968         set_to_cap_if_null(ops, inode_mknod);
 969         set_to_cap_if_null(ops, inode_rename);
 970         set_to_cap_if_null(ops, inode_readlink);
 971         set_to_cap_if_null(ops, inode_follow_link);
 972         set_to_cap_if_null(ops, inode_permission);
 973         set_to_cap_if_null(ops, inode_setattr);
 974         set_to_cap_if_null(ops, inode_getattr);
 975         set_to_cap_if_null(ops, inode_delete);
 976         set_to_cap_if_null(ops, inode_setxattr);
 977         set_to_cap_if_null(ops, inode_post_setxattr);
 978         set_to_cap_if_null(ops, inode_getxattr);
 979         set_to_cap_if_null(ops, inode_listxattr);
 980         set_to_cap_if_null(ops, inode_removexattr);
 981         set_to_cap_if_null(ops, inode_need_killpriv);
 982         set_to_cap_if_null(ops, inode_killpriv);
 983         set_to_cap_if_null(ops, inode_getsecurity);
 984         set_to_cap_if_null(ops, inode_setsecurity);
 985         set_to_cap_if_null(ops, inode_listsecurity);
 986         set_to_cap_if_null(ops, inode_getsecid);
 987 #ifdef CONFIG_SECURITY_PATH
 988         set_to_cap_if_null(ops, path_mknod);
 989         set_to_cap_if_null(ops, path_mkdir);
 990         set_to_cap_if_null(ops, path_rmdir);
 991         set_to_cap_if_null(ops, path_unlink);
 992         set_to_cap_if_null(ops, path_symlink);
 993         set_to_cap_if_null(ops, path_link);
 994         set_to_cap_if_null(ops, path_rename);
 995         set_to_cap_if_null(ops, path_truncate);
 996         set_to_cap_if_null(ops, path_chmod);
 997         set_to_cap_if_null(ops, path_chown);
 998         set_to_cap_if_null(ops, path_chroot);
 999 #endif
1000         set_to_cap_if_null(ops, file_permission);
1001         set_to_cap_if_null(ops, file_alloc_security);
1002         set_to_cap_if_null(ops, file_free_security);
1003         set_to_cap_if_null(ops, file_ioctl);
1004         set_to_cap_if_null(ops, file_mmap);
1005         set_to_cap_if_null(ops, file_mprotect);
1006         set_to_cap_if_null(ops, file_lock);
1007         set_to_cap_if_null(ops, file_fcntl);
1008         set_to_cap_if_null(ops, file_set_fowner);
1009         set_to_cap_if_null(ops, file_send_sigiotask);
1010         set_to_cap_if_null(ops, file_receive);
1011         set_to_cap_if_null(ops, dentry_open);
1012         set_to_cap_if_null(ops, task_create);
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_commit);
1017         set_to_cap_if_null(ops, cred_transfer);
1018         set_to_cap_if_null(ops, kernel_act_as);
1019         set_to_cap_if_null(ops, kernel_create_files_as);
1020         set_to_cap_if_null(ops, kernel_module_request);
1021         set_to_cap_if_null(ops, task_setuid);
1022         set_to_cap_if_null(ops, task_fix_setuid);
1023         set_to_cap_if_null(ops, task_setgid);
1024         set_to_cap_if_null(ops, task_setpgid);
1025         set_to_cap_if_null(ops, task_getpgid);
1026         set_to_cap_if_null(ops, task_getsid);
1027         set_to_cap_if_null(ops, task_getsecid);
1028         set_to_cap_if_null(ops, task_setgroups);
1029         set_to_cap_if_null(ops, task_setnice);
1030         set_to_cap_if_null(ops, task_setioprio);
1031         set_to_cap_if_null(ops, task_getioprio);
1032         set_to_cap_if_null(ops, task_setrlimit);
1033         set_to_cap_if_null(ops, task_setscheduler);
1034         set_to_cap_if_null(ops, task_getscheduler);
1035         set_to_cap_if_null(ops, task_movememory);
1036         set_to_cap_if_null(ops, task_wait);
1037         set_to_cap_if_null(ops, task_kill);
1038         set_to_cap_if_null(ops, task_prctl);
1039         set_to_cap_if_null(ops, task_to_inode);
1040         set_to_cap_if_null(ops, ipc_permission);
1041         set_to_cap_if_null(ops, ipc_getsecid);
1042         set_to_cap_if_null(ops, msg_msg_alloc_security);
1043         set_to_cap_if_null(ops, msg_msg_free_security);
1044         set_to_cap_if_null(ops, msg_queue_alloc_security);
1045         set_to_cap_if_null(ops, msg_queue_free_security);
1046         set_to_cap_if_null(ops, msg_queue_associate);
1047         set_to_cap_if_null(ops, msg_queue_msgctl);
1048         set_to_cap_if_null(ops, msg_queue_msgsnd);
1049         set_to_cap_if_null(ops, msg_queue_msgrcv);
1050         set_to_cap_if_null(ops, shm_alloc_security);
1051         set_to_cap_if_null(ops, shm_free_security);
1052         set_to_cap_if_null(ops, shm_associate);
1053         set_to_cap_if_null(ops, shm_shmctl);
1054         set_to_cap_if_null(ops, shm_shmat);
1055         set_to_cap_if_null(ops, sem_alloc_security);
1056         set_to_cap_if_null(ops, sem_free_security);
1057         set_to_cap_if_null(ops, sem_associate);
1058         set_to_cap_if_null(ops, sem_semctl);
1059         set_to_cap_if_null(ops, sem_semop);
1060         set_to_cap_if_null(ops, netlink_send);
1061         set_to_cap_if_null(ops, netlink_recv);
1062         set_to_cap_if_null(ops, d_instantiate);
1063         set_to_cap_if_null(ops, getprocattr);
1064         set_to_cap_if_null(ops, setprocattr);
1065         set_to_cap_if_null(ops, secid_to_secctx);
1066         set_to_cap_if_null(ops, secctx_to_secid);
1067         set_to_cap_if_null(ops, release_secctx);
1068         set_to_cap_if_null(ops, inode_notifysecctx);
1069         set_to_cap_if_null(ops, inode_setsecctx);
1070         set_to_cap_if_null(ops, inode_getsecctx);
1071 #ifdef CONFIG_SECURITY_NETWORK
1072         set_to_cap_if_null(ops, unix_stream_connect);
1073         set_to_cap_if_null(ops, unix_may_send);
1074         set_to_cap_if_null(ops, socket_create);
1075         set_to_cap_if_null(ops, socket_post_create);
1076         set_to_cap_if_null(ops, socket_bind);
1077         set_to_cap_if_null(ops, socket_connect);
1078         set_to_cap_if_null(ops, socket_listen);
1079         set_to_cap_if_null(ops, socket_accept);
1080         set_to_cap_if_null(ops, socket_sendmsg);
1081         set_to_cap_if_null(ops, socket_recvmsg);
1082         set_to_cap_if_null(ops, socket_getsockname);
1083         set_to_cap_if_null(ops, socket_getpeername);
1084         set_to_cap_if_null(ops, socket_setsockopt);
1085         set_to_cap_if_null(ops, socket_getsockopt);
1086         set_to_cap_if_null(ops, socket_shutdown);
1087         set_to_cap_if_null(ops, socket_sock_rcv_skb);
1088         set_to_cap_if_null(ops, socket_getpeersec_stream);
1089         set_to_cap_if_null(ops, socket_getpeersec_dgram);
1090         set_to_cap_if_null(ops, sk_alloc_security);
1091         set_to_cap_if_null(ops, sk_free_security);
1092         set_to_cap_if_null(ops, sk_clone_security);
1093         set_to_cap_if_null(ops, sk_getsecid);
1094         set_to_cap_if_null(ops, sock_graft);
1095         set_to_cap_if_null(ops, inet_conn_request);
1096         set_to_cap_if_null(ops, inet_csk_clone);
1097         set_to_cap_if_null(ops, inet_conn_established);
1098         set_to_cap_if_null(ops, req_classify_flow);
1099         set_to_cap_if_null(ops, tun_dev_create);
1100         set_to_cap_if_null(ops, tun_dev_post_create);
1101         set_to_cap_if_null(ops, tun_dev_attach);
1102 #endif  /* CONFIG_SECURITY_NETWORK */
1103 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1104         set_to_cap_if_null(ops, xfrm_policy_alloc_security);
1105         set_to_cap_if_null(ops, xfrm_policy_clone_security);
1106         set_to_cap_if_null(ops, xfrm_policy_free_security);
1107         set_to_cap_if_null(ops, xfrm_policy_delete_security);
1108         set_to_cap_if_null(ops, xfrm_state_alloc_security);
1109         set_to_cap_if_null(ops, xfrm_state_free_security);
1110         set_to_cap_if_null(ops, xfrm_state_delete_security);
1111         set_to_cap_if_null(ops, xfrm_policy_lookup);
1112         set_to_cap_if_null(ops, xfrm_state_pol_flow_match);
1113         set_to_cap_if_null(ops, xfrm_decode_session);
1114 #endif  /* CONFIG_SECURITY_NETWORK_XFRM */
1115 #ifdef CONFIG_KEYS
1116         set_to_cap_if_null(ops, key_alloc);
1117         set_to_cap_if_null(ops, key_free);
1118         set_to_cap_if_null(ops, key_permission);
1119         set_to_cap_if_null(ops, key_getsecurity);
1120         set_to_cap_if_null(ops, key_session_to_parent);
1121 #endif  /* CONFIG_KEYS */
1122 #ifdef CONFIG_AUDIT
1123         set_to_cap_if_null(ops, audit_rule_init);
1124         set_to_cap_if_null(ops, audit_rule_known);
1125         set_to_cap_if_null(ops, audit_rule_match);
1126         set_to_cap_if_null(ops, audit_rule_free);
1127 #endif
1128 }