security/security.c

   1 /*
   2  * Security plug functions
   3  *
   4  * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
   5  * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com>
   6  * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
   7  *
   8  *      This program is free software; you can redistribute it and/or modify
   9  *      it under the terms of the GNU General Public License as published by
  10  *      the Free Software Foundation; either version 2 of the License, or
  11  *      (at your option) any later version.
  12  */
  13
  14 #include <linux/capability.h>
  15 #include <linux/module.h>
  16 #include <linux/init.h>
  17 #include <linux/kernel.h>
  18 #include <linux/security.h>
  19
  20 /* Boot-time LSM user choice */
  21 static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1];
  22
  23 /* things that live in capability.c */
  24 extern struct security_operations default_security_ops;
  25 extern void security_fixup_ops(struct security_operations *ops);
  26
  27 struct security_operations *security_ops;       /* Initialized to NULL */
  28
  29 /* amount of vm to protect from userspace access */
  30 unsigned long mmap_min_addr = CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR;
  31
  32 static inline int verify(struct security_operations *ops)
  33 {
  34         /* verify the security_operations structure exists */
  35         if (!ops)
  36                 return -EINVAL;
  37         security_fixup_ops(ops);
  38         return 0;
  39 }
  40
  41 static void __init do_security_initcalls(void)
  42 {
  43         initcall_t *call;
  44         call = __security_initcall_start;
  45         while (call < __security_initcall_end) {
  46                 (*call) ();
  47                 call++;
  48         }
  49 }
  50
  51 /**
  52  * security_init - initializes the security framework
  53  *
  54  * This should be called early in the kernel initialization sequence.
  55  */
  56 int __init security_init(void)
  57 {
  58         printk(KERN_INFO "Security Framework initialized\n");
  59
  60         security_fixup_ops(&default_security_ops);
  61         security_ops = &default_security_ops;
  62         do_security_initcalls();
  63
  64         return 0;
  65 }
  66
  67 /* Save user chosen LSM */
  68 static int __init choose_lsm(char *str)
  69 {
  70         strncpy(chosen_lsm, str, SECURITY_NAME_MAX);
  71         return 1;
  72 }
  73 __setup("security=", choose_lsm);
  74
  75 /**
  76  * security_module_enable - Load given security module on boot ?
  77  * @ops: a pointer to the struct security_operations that is to be checked.
  78  *
  79  * Each LSM must pass this method before registering its own operations
  80  * to avoid security registration races. This method may also be used
  81  * to check if your LSM is currently loaded during kernel initialization.
  82  *
  83  * Return true if:
  84  *      -The passed LSM is the one chosen by user at boot time,
  85  *      -or user didn't specify a specific LSM and we're the first to ask
  86  *       for registration permission,
  87  *      -or the passed LSM is currently loaded.
  88  * Otherwise, return false.
  89  */
  90 int __init security_module_enable(struct security_operations *ops)
  91 {
  92         if (!*chosen_lsm)
  93                 strncpy(chosen_lsm, ops->name, SECURITY_NAME_MAX);
  94         else if (strncmp(ops->name, chosen_lsm, SECURITY_NAME_MAX))
  95                 return 0;
  96
  97         return 1;
  98 }
  99
 100 /**
 101  * register_security - registers a security framework with the kernel
 102  * @ops: a pointer to the struct security_options that is to be registered
 103  *
 104  * This function allows a security module to register itself with the
 105  * kernel security subsystem.  Some rudimentary checking is done on the @ops
 106  * value passed to this function. You'll need to check first if your LSM
 107  * is allowed to register its @ops by calling security_module_enable(@ops).
 108  *
 109  * If there is already a security module registered with the kernel,
 110  * an error will be returned.  Otherwise %0 is returned on success.
 111  */
 112 int register_security(struct security_operations *ops)
 113 {
 114         if (verify(ops)) {
 115                 printk(KERN_DEBUG "%s could not verify "
 116                        "security_operations structure.\n", __func__);
 117                 return -EINVAL;
 118         }
 119
 120         if (security_ops != &default_security_ops)
 121                 return -EAGAIN;
 122
 123         security_ops = ops;
 124
 125         return 0;
 126 }
 127
 128 /* Security operations */
 129
 130 int security_ptrace_may_access(struct task_struct *child, unsigned int mode)
 131 {
 132         return security_ops->ptrace_may_access(child, mode);
 133 }
 134
 135 int security_ptrace_traceme(struct task_struct *parent)
 136 {
 137         return security_ops->ptrace_traceme(parent);
 138 }
 139
 140 int security_capget(struct task_struct *target,
 141                      kernel_cap_t *effective,
 142                      kernel_cap_t *inheritable,
 143                      kernel_cap_t *permitted)
 144 {
 145         return security_ops->capget(target, effective, inheritable, permitted);
 146 }
 147
 148 int security_capset(struct cred *new, const struct cred *old,
 149                     const kernel_cap_t *effective,
 150                     const kernel_cap_t *inheritable,
 151                     const kernel_cap_t *permitted)
 152 {
 153         return security_ops->capset(new, old,
 154                                     effective, inheritable, permitted);
 155 }
 156
 157 int security_capable(int cap)
 158 {
 159         return security_ops->capable(current, current_cred(), cap,
 160                                      SECURITY_CAP_AUDIT);
 161 }
 162
 163 int security_real_capable(struct task_struct *tsk, int cap)
 164 {
 165         const struct cred *cred;
 166         int ret;
 167
 168         cred = get_task_cred(tsk);
 169         ret = security_ops->capable(tsk, cred, cap, SECURITY_CAP_AUDIT);
 170         put_cred(cred);
 171         return ret;
 172 }
 173
 174 int security_real_capable_noaudit(struct task_struct *tsk, int cap)
 175 {
 176         const struct cred *cred;
 177         int ret;
 178
 179         cred = get_task_cred(tsk);
 180         ret = security_ops->capable(tsk, cred, cap, SECURITY_CAP_NOAUDIT);
 181         put_cred(cred);
 182         return ret;
 183 }
 184
 185 int security_acct(struct file *file)
 186 {
 187         return security_ops->acct(file);
 188 }
 189
 190 int security_sysctl(struct ctl_table *table, int op)
 191 {
 192         return security_ops->sysctl(table, op);
 193 }
 194
 195 int security_quotactl(int cmds, int type, int id, struct super_block *sb)
 196 {
 197         return security_ops->quotactl(cmds, type, id, sb);
 198 }
 199
 200 int security_quota_on(struct dentry *dentry)
 201 {
 202         return security_ops->quota_on(dentry);
 203 }
 204
 205 int security_syslog(int type)
 206 {
 207         return security_ops->syslog(type);
 208 }
 209
 210 int security_settime(struct timespec *ts, struct timezone *tz)
 211 {
 212         return security_ops->settime(ts, tz);
 213 }
 214
 215 int security_vm_enough_memory(long pages)
 216 {
 217         WARN_ON(current->mm == NULL);
 218         return security_ops->vm_enough_memory(current->mm, pages);
 219 }
 220
 221 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
 222 {
 223         WARN_ON(mm == NULL);
 224         return security_ops->vm_enough_memory(mm, pages);
 225 }
 226
 227 int security_vm_enough_memory_kern(long pages)
 228 {
 229         /* If current->mm is a kernel thread then we will pass NULL,
 230            for this specific case that is fine */
 231         return security_ops->vm_enough_memory(current->mm, pages);
 232 }
 233
 234 int security_bprm_set_creds(struct linux_binprm *bprm)
 235 {
 236         return security_ops->bprm_set_creds(bprm);
 237 }
 238
 239 int security_bprm_check(struct linux_binprm *bprm)
 240 {
 241         return security_ops->bprm_check_security(bprm);
 242 }
 243
 244 void security_bprm_committing_creds(struct linux_binprm *bprm)
 245 {
 246         security_ops->bprm_committing_creds(bprm);
 247 }
 248
 249 void security_bprm_committed_creds(struct linux_binprm *bprm)
 250 {
 251         security_ops->bprm_committed_creds(bprm);
 252 }
 253
 254 int security_bprm_secureexec(struct linux_binprm *bprm)
 255 {
 256         return security_ops->bprm_secureexec(bprm);
 257 }
 258
 259 int security_sb_alloc(struct super_block *sb)
 260 {
 261         return security_ops->sb_alloc_security(sb);
 262 }
 263
 264 void security_sb_free(struct super_block *sb)
 265 {
 266         security_ops->sb_free_security(sb);
 267 }
 268
 269 int security_sb_copy_data(char *orig, char *copy)
 270 {
 271         return security_ops->sb_copy_data(orig, copy);
 272 }
 273 EXPORT_SYMBOL(security_sb_copy_data);
 274
 275 int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
 276 {
 277         return security_ops->sb_kern_mount(sb, flags, data);
 278 }
 279
 280 int security_sb_show_options(struct seq_file *m, struct super_block *sb)
 281 {
 282         return security_ops->sb_show_options(m, sb);
 283 }
 284
 285 int security_sb_statfs(struct dentry *dentry)
 286 {
 287         return security_ops->sb_statfs(dentry);
 288 }
 289
 290 int security_sb_mount(char *dev_name, struct path *path,
 291                        char *type, unsigned long flags, void *data)
 292 {
 293         return security_ops->sb_mount(dev_name, path, type, flags, data);
 294 }
 295
 296 int security_sb_check_sb(struct vfsmount *mnt, struct path *path)
 297 {
 298         return security_ops->sb_check_sb(mnt, path);
 299 }
 300
 301 int security_sb_umount(struct vfsmount *mnt, int flags)
 302 {
 303         return security_ops->sb_umount(mnt, flags);
 304 }
 305
 306 void security_sb_umount_close(struct vfsmount *mnt)
 307 {
 308         security_ops->sb_umount_close(mnt);
 309 }
 310
 311 void security_sb_umount_busy(struct vfsmount *mnt)
 312 {
 313         security_ops->sb_umount_busy(mnt);
 314 }
 315
 316 void security_sb_post_remount(struct vfsmount *mnt, unsigned long flags, void *data)
 317 {
 318         security_ops->sb_post_remount(mnt, flags, data);
 319 }
 320
 321 void security_sb_post_addmount(struct vfsmount *mnt, struct path *mountpoint)
 322 {
 323         security_ops->sb_post_addmount(mnt, mountpoint);
 324 }
 325
 326 int security_sb_pivotroot(struct path *old_path, struct path *new_path)
 327 {
 328         return security_ops->sb_pivotroot(old_path, new_path);
 329 }
 330
 331 void security_sb_post_pivotroot(struct path *old_path, struct path *new_path)
 332 {
 333         security_ops->sb_post_pivotroot(old_path, new_path);
 334 }
 335
 336 int security_sb_set_mnt_opts(struct super_block *sb,
 337                                 struct security_mnt_opts *opts)
 338 {
 339         return security_ops->sb_set_mnt_opts(sb, opts);
 340 }
 341 EXPORT_SYMBOL(security_sb_set_mnt_opts);
 342
 343 void security_sb_clone_mnt_opts(const struct super_block *oldsb,
 344                                 struct super_block *newsb)
 345 {
 346         security_ops->sb_clone_mnt_opts(oldsb, newsb);
 347 }
 348 EXPORT_SYMBOL(security_sb_clone_mnt_opts);
 349
 350 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
 351 {
 352         return security_ops->sb_parse_opts_str(options, opts);
 353 }
 354 EXPORT_SYMBOL(security_sb_parse_opts_str);
 355
 356 int security_inode_alloc(struct inode *inode)
 357 {
 358         inode->i_security = NULL;
 359         return security_ops->inode_alloc_security(inode);
 360 }
 361
 362 void security_inode_free(struct inode *inode)
 363 {
 364         security_ops->inode_free_security(inode);
 365 }
 366
 367 int security_inode_init_security(struct inode *inode, struct inode *dir,
 368                                   char **name, void **value, size_t *len)
 369 {
 370         if (unlikely(IS_PRIVATE(inode)))
 371                 return -EOPNOTSUPP;
 372         return security_ops->inode_init_security(inode, dir, name, value, len);
 373 }
 374 EXPORT_SYMBOL(security_inode_init_security);
 375
 376 #ifdef CONFIG_SECURITY_PATH
 377 int security_path_mknod(struct path *path, struct dentry *dentry, int mode,
 378                         unsigned int dev)
 379 {
 380         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 381                 return 0;
 382         return security_ops->path_mknod(path, dentry, mode, dev);
 383 }
 384 EXPORT_SYMBOL(security_path_mknod);
 385
 386 int security_path_mkdir(struct path *path, struct dentry *dentry, int mode)
 387 {
 388         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 389                 return 0;
 390         return security_ops->path_mkdir(path, dentry, mode);
 391 }
 392
 393 int security_path_rmdir(struct path *path, struct dentry *dentry)
 394 {
 395         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 396                 return 0;
 397         return security_ops->path_rmdir(path, dentry);
 398 }
 399
 400 int security_path_unlink(struct path *path, struct dentry *dentry)
 401 {
 402         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 403                 return 0;
 404         return security_ops->path_unlink(path, dentry);
 405 }
 406
 407 int security_path_symlink(struct path *path, struct dentry *dentry,
 408                           const char *old_name)
 409 {
 410         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 411                 return 0;
 412         return security_ops->path_symlink(path, dentry, old_name);
 413 }
 414
 415 int security_path_link(struct dentry *old_dentry, struct path *new_dir,
 416                        struct dentry *new_dentry)
 417 {
 418         if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
 419                 return 0;
 420         return security_ops->path_link(old_dentry, new_dir, new_dentry);
 421 }
 422
 423 int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
 424                          struct path *new_dir, struct dentry *new_dentry)
 425 {
 426         if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
 427                      (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
 428                 return 0;
 429         return security_ops->path_rename(old_dir, old_dentry, new_dir,
 430                                          new_dentry);
 431 }
 432
 433 int security_path_truncate(struct path *path, loff_t length,
 434                            unsigned int time_attrs)
 435 {
 436         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 437                 return 0;
 438         return security_ops->path_truncate(path, length, time_attrs);
 439 }
 440 #endif
 441
 442 int security_inode_create(struct inode *dir, struct dentry *dentry, int mode)
 443 {
 444         if (unlikely(IS_PRIVATE(dir)))
 445                 return 0;
 446         return security_ops->inode_create(dir, dentry, mode);
 447 }
 448
 449 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
 450                          struct dentry *new_dentry)
 451 {
 452         if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
 453                 return 0;
 454         return security_ops->inode_link(old_dentry, dir, new_dentry);
 455 }
 456
 457 int security_inode_unlink(struct inode *dir, struct dentry *dentry)
 458 {
 459         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 460                 return 0;
 461         return security_ops->inode_unlink(dir, dentry);
 462 }
 463
 464 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
 465                             const char *old_name)
 466 {
 467         if (unlikely(IS_PRIVATE(dir)))
 468                 return 0;
 469         return security_ops->inode_symlink(dir, dentry, old_name);
 470 }
 471
 472 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 473 {
 474         if (unlikely(IS_PRIVATE(dir)))
 475                 return 0;
 476         return security_ops->inode_mkdir(dir, dentry, mode);
 477 }
 478
 479 int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
 480 {
 481         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 482                 return 0;
 483         return security_ops->inode_rmdir(dir, dentry);
 484 }
 485
 486 int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
 487 {
 488         if (unlikely(IS_PRIVATE(dir)))
 489                 return 0;
 490         return security_ops->inode_mknod(dir, dentry, mode, dev);
 491 }
 492
 493 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
 494                            struct inode *new_dir, struct dentry *new_dentry)
 495 {
 496         if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
 497             (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
 498                 return 0;
 499         return security_ops->inode_rename(old_dir, old_dentry,
 500                                            new_dir, new_dentry);
 501 }
 502
 503 int security_inode_readlink(struct dentry *dentry)
 504 {
 505         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 506                 return 0;
 507         return security_ops->inode_readlink(dentry);
 508 }
 509
 510 int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
 511 {
 512         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 513                 return 0;
 514         return security_ops->inode_follow_link(dentry, nd);
 515 }
 516
 517 int security_inode_permission(struct inode *inode, int mask)
 518 {
 519         if (unlikely(IS_PRIVATE(inode)))
 520                 return 0;
 521         return security_ops->inode_permission(inode, mask);
 522 }
 523
 524 int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
 525 {
 526         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 527                 return 0;
 528         return security_ops->inode_setattr(dentry, attr);
 529 }
 530 EXPORT_SYMBOL_GPL(security_inode_setattr);
 531
 532 int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
 533 {
 534         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 535                 return 0;
 536         return security_ops->inode_getattr(mnt, dentry);
 537 }
 538
 539 void security_inode_delete(struct inode *inode)
 540 {
 541         if (unlikely(IS_PRIVATE(inode)))
 542                 return;
 543         security_ops->inode_delete(inode);
 544 }
 545
 546 int security_inode_setxattr(struct dentry *dentry, const char *name,
 547                             const void *value, size_t size, int flags)
 548 {
 549         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 550                 return 0;
 551         return security_ops->inode_setxattr(dentry, name, value, size, flags);
 552 }
 553
 554 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
 555                                   const void *value, size_t size, int flags)
 556 {
 557         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 558                 return;
 559         security_ops->inode_post_setxattr(dentry, name, value, size, flags);
 560 }
 561
 562 int security_inode_getxattr(struct dentry *dentry, const char *name)
 563 {
 564         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 565                 return 0;
 566         return security_ops->inode_getxattr(dentry, name);
 567 }
 568
 569 int security_inode_listxattr(struct dentry *dentry)
 570 {
 571         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 572                 return 0;
 573         return security_ops->inode_listxattr(dentry);
 574 }
 575
 576 int security_inode_removexattr(struct dentry *dentry, const char *name)
 577 {
 578         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 579                 return 0;
 580         return security_ops->inode_removexattr(dentry, name);
 581 }
 582
 583 int security_inode_need_killpriv(struct dentry *dentry)
 584 {
 585         return security_ops->inode_need_killpriv(dentry);
 586 }
 587
 588 int security_inode_killpriv(struct dentry *dentry)
 589 {
 590         return security_ops->inode_killpriv(dentry);
 591 }
 592
 593 int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
 594 {
 595         if (unlikely(IS_PRIVATE(inode)))
 596                 return 0;
 597         return security_ops->inode_getsecurity(inode, name, buffer, alloc);
 598 }
 599
 600 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
 601 {
 602         if (unlikely(IS_PRIVATE(inode)))
 603                 return 0;
 604         return security_ops->inode_setsecurity(inode, name, value, size, flags);
 605 }
 606
 607 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
 608 {
 609         if (unlikely(IS_PRIVATE(inode)))
 610                 return 0;
 611         return security_ops->inode_listsecurity(inode, buffer, buffer_size);
 612 }
 613
 614 void security_inode_getsecid(const struct inode *inode, u32 *secid)
 615 {
 616         security_ops->inode_getsecid(inode, secid);
 617 }
 618
 619 int security_file_permission(struct file *file, int mask)
 620 {
 621         return security_ops->file_permission(file, mask);
 622 }
 623
 624 int security_file_alloc(struct file *file)
 625 {
 626         return security_ops->file_alloc_security(file);
 627 }
 628
 629 void security_file_free(struct file *file)
 630 {
 631         security_ops->file_free_security(file);
 632 }
 633
 634 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 635 {
 636         return security_ops->file_ioctl(file, cmd, arg);
 637 }
 638
 639 int security_file_mmap(struct file *file, unsigned long reqprot,
 640                         unsigned long prot, unsigned long flags,
 641                         unsigned long addr, unsigned long addr_only)
 642 {
 643         return security_ops->file_mmap(file, reqprot, prot, flags, addr, addr_only);
 644 }
 645
 646 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
 647                             unsigned long prot)
 648 {
 649         return security_ops->file_mprotect(vma, reqprot, prot);
 650 }
 651
 652 int security_file_lock(struct file *file, unsigned int cmd)
 653 {
 654         return security_ops->file_lock(file, cmd);
 655 }
 656
 657 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
 658 {
 659         return security_ops->file_fcntl(file, cmd, arg);
 660 }
 661
 662 int security_file_set_fowner(struct file *file)
 663 {
 664         return security_ops->file_set_fowner(file);
 665 }
 666
 667 int security_file_send_sigiotask(struct task_struct *tsk,
 668                                   struct fown_struct *fown, int sig)
 669 {
 670         return security_ops->file_send_sigiotask(tsk, fown, sig);
 671 }
 672
 673 int security_file_receive(struct file *file)
 674 {
 675         return security_ops->file_receive(file);
 676 }
 677
 678 int security_dentry_open(struct file *file, const struct cred *cred)
 679 {
 680         return security_ops->dentry_open(file, cred);
 681 }
 682
 683 int security_task_create(unsigned long clone_flags)
 684 {
 685         return security_ops->task_create(clone_flags);
 686 }
 687
 688 void security_cred_free(struct cred *cred)
 689 {
 690         security_ops->cred_free(cred);
 691 }
 692
 693 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
 694 {
 695         return security_ops->cred_prepare(new, old, gfp);
 696 }
 697
 698 void security_commit_creds(struct cred *new, const struct cred *old)
 699 {
 700         security_ops->cred_commit(new, old);
 701 }
 702
 703 int security_kernel_act_as(struct cred *new, u32 secid)
 704 {
 705         return security_ops->kernel_act_as(new, secid);
 706 }
 707
 708 int security_kernel_create_files_as(struct cred *new, struct inode *inode)
 709 {
 710         return security_ops->kernel_create_files_as(new, inode);
 711 }
 712
 713 int security_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags)
 714 {
 715         return security_ops->task_setuid(id0, id1, id2, flags);
 716 }
 717
 718 int security_task_fix_setuid(struct cred *new, const struct cred *old,
 719                              int flags)
 720 {
 721         return security_ops->task_fix_setuid(new, old, flags);
 722 }
 723
 724 int security_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags)
 725 {
 726         return security_ops->task_setgid(id0, id1, id2, flags);
 727 }
 728
 729 int security_task_setpgid(struct task_struct *p, pid_t pgid)
 730 {
 731         return security_ops->task_setpgid(p, pgid);
 732 }
 733
 734 int security_task_getpgid(struct task_struct *p)
 735 {
 736         return security_ops->task_getpgid(p);
 737 }
 738
 739 int security_task_getsid(struct task_struct *p)
 740 {
 741         return security_ops->task_getsid(p);
 742 }
 743
 744 void security_task_getsecid(struct task_struct *p, u32 *secid)
 745 {
 746         security_ops->task_getsecid(p, secid);
 747 }
 748 EXPORT_SYMBOL(security_task_getsecid);
 749
 750 int security_task_setgroups(struct group_info *group_info)
 751 {
 752         return security_ops->task_setgroups(group_info);
 753 }
 754
 755 int security_task_setnice(struct task_struct *p, int nice)
 756 {
 757         return security_ops->task_setnice(p, nice);
 758 }
 759
 760 int security_task_setioprio(struct task_struct *p, int ioprio)
 761 {
 762         return security_ops->task_setioprio(p, ioprio);
 763 }
 764
 765 int security_task_getioprio(struct task_struct *p)
 766 {
 767         return security_ops->task_getioprio(p);
 768 }
 769
 770 int security_task_setrlimit(unsigned int resource, struct rlimit *new_rlim)
 771 {
 772         return security_ops->task_setrlimit(resource, new_rlim);
 773 }
 774
 775 int security_task_setscheduler(struct task_struct *p,
 776                                 int policy, struct sched_param *lp)
 777 {
 778         return security_ops->task_setscheduler(p, policy, lp);
 779 }
 780
 781 int security_task_getscheduler(struct task_struct *p)
 782 {
 783         return security_ops->task_getscheduler(p);
 784 }
 785
 786 int security_task_movememory(struct task_struct *p)
 787 {
 788         return security_ops->task_movememory(p);
 789 }
 790
 791 int security_task_kill(struct task_struct *p, struct siginfo *info,
 792                         int sig, u32 secid)
 793 {
 794         return security_ops->task_kill(p, info, sig, secid);
 795 }
 796
 797 int security_task_wait(struct task_struct *p)
 798 {
 799         return security_ops->task_wait(p);
 800 }
 801
 802 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
 803                          unsigned long arg4, unsigned long arg5)
 804 {
 805         return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
 806 }
 807
 808 void security_task_to_inode(struct task_struct *p, struct inode *inode)
 809 {
 810         security_ops->task_to_inode(p, inode);
 811 }
 812
 813 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
 814 {
 815         return security_ops->ipc_permission(ipcp, flag);
 816 }
 817
 818 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
 819 {
 820         security_ops->ipc_getsecid(ipcp, secid);
 821 }
 822
 823 int security_msg_msg_alloc(struct msg_msg *msg)
 824 {
 825         return security_ops->msg_msg_alloc_security(msg);
 826 }
 827
 828 void security_msg_msg_free(struct msg_msg *msg)
 829 {
 830         security_ops->msg_msg_free_security(msg);
 831 }
 832
 833 int security_msg_queue_alloc(struct msg_queue *msq)
 834 {
 835         return security_ops->msg_queue_alloc_security(msq);
 836 }
 837
 838 void security_msg_queue_free(struct msg_queue *msq)
 839 {
 840         security_ops->msg_queue_free_security(msq);
 841 }
 842
 843 int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
 844 {
 845         return security_ops->msg_queue_associate(msq, msqflg);
 846 }
 847
 848 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
 849 {
 850         return security_ops->msg_queue_msgctl(msq, cmd);
 851 }
 852
 853 int security_msg_queue_msgsnd(struct msg_queue *msq,
 854                                struct msg_msg *msg, int msqflg)
 855 {
 856         return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
 857 }
 858
 859 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
 860                                struct task_struct *target, long type, int mode)
 861 {
 862         return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
 863 }
 864
 865 int security_shm_alloc(struct shmid_kernel *shp)
 866 {
 867         return security_ops->shm_alloc_security(shp);
 868 }
 869
 870 void security_shm_free(struct shmid_kernel *shp)
 871 {
 872         security_ops->shm_free_security(shp);
 873 }
 874
 875 int security_shm_associate(struct shmid_kernel *shp, int shmflg)
 876 {
 877         return security_ops->shm_associate(shp, shmflg);
 878 }
 879
 880 int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
 881 {
 882         return security_ops->shm_shmctl(shp, cmd);
 883 }
 884
 885 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
 886 {
 887         return security_ops->shm_shmat(shp, shmaddr, shmflg);
 888 }
 889
 890 int security_sem_alloc(struct sem_array *sma)
 891 {
 892         return security_ops->sem_alloc_security(sma);
 893 }
 894
 895 void security_sem_free(struct sem_array *sma)
 896 {
 897         security_ops->sem_free_security(sma);
 898 }
 899
 900 int security_sem_associate(struct sem_array *sma, int semflg)
 901 {
 902         return security_ops->sem_associate(sma, semflg);
 903 }
 904
 905 int security_sem_semctl(struct sem_array *sma, int cmd)
 906 {
 907         return security_ops->sem_semctl(sma, cmd);
 908 }
 909
 910 int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
 911                         unsigned nsops, int alter)
 912 {
 913         return security_ops->sem_semop(sma, sops, nsops, alter);
 914 }
 915
 916 void security_d_instantiate(struct dentry *dentry, struct inode *inode)
 917 {
 918         if (unlikely(inode && IS_PRIVATE(inode)))
 919                 return;
 920         security_ops->d_instantiate(dentry, inode);
 921 }
 922 EXPORT_SYMBOL(security_d_instantiate);
 923
 924 int security_getprocattr(struct task_struct *p, char *name, char **value)
 925 {
 926         return security_ops->getprocattr(p, name, value);
 927 }
 928
 929 int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
 930 {
 931         return security_ops->setprocattr(p, name, value, size);
 932 }
 933
 934 int security_netlink_send(struct sock *sk, struct sk_buff *skb)
 935 {
 936         return security_ops->netlink_send(sk, skb);
 937 }
 938
 939 int security_netlink_recv(struct sk_buff *skb, int cap)
 940 {
 941         return security_ops->netlink_recv(skb, cap);
 942 }
 943 EXPORT_SYMBOL(security_netlink_recv);
 944
 945 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
 946 {
 947         return security_ops->secid_to_secctx(secid, secdata, seclen);
 948 }
 949 EXPORT_SYMBOL(security_secid_to_secctx);
 950
 951 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
 952 {
 953         return security_ops->secctx_to_secid(secdata, seclen, secid);
 954 }
 955 EXPORT_SYMBOL(security_secctx_to_secid);
 956
 957 void security_release_secctx(char *secdata, u32 seclen)
 958 {
 959         security_ops->release_secctx(secdata, seclen);
 960 }
 961 EXPORT_SYMBOL(security_release_secctx);
 962
 963 #ifdef CONFIG_SECURITY_NETWORK
 964
 965 int security_unix_stream_connect(struct socket *sock, struct socket *other,
 966                                  struct sock *newsk)
 967 {
 968         return security_ops->unix_stream_connect(sock, other, newsk);
 969 }
 970 EXPORT_SYMBOL(security_unix_stream_connect);
 971
 972 int security_unix_may_send(struct socket *sock,  struct socket *other)
 973 {
 974         return security_ops->unix_may_send(sock, other);
 975 }
 976 EXPORT_SYMBOL(security_unix_may_send);
 977
 978 int security_socket_create(int family, int type, int protocol, int kern)
 979 {
 980         return security_ops->socket_create(family, type, protocol, kern);
 981 }
 982
 983 int security_socket_post_create(struct socket *sock, int family,
 984                                 int type, int protocol, int kern)
 985 {
 986         return security_ops->socket_post_create(sock, family, type,
 987                                                 protocol, kern);
 988 }
 989
 990 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
 991 {
 992         return security_ops->socket_bind(sock, address, addrlen);
 993 }
 994
 995 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
 996 {
 997         return security_ops->socket_connect(sock, address, addrlen);
 998 }
 999
1000 int security_socket_listen(struct socket *sock, int backlog)
1001 {
1002         return security_ops->socket_listen(sock, backlog);
1003 }
1004
1005 int security_socket_accept(struct socket *sock, struct socket *newsock)
1006 {
1007         return security_ops->socket_accept(sock, newsock);
1008 }
1009
1010 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1011 {
1012         return security_ops->socket_sendmsg(sock, msg, size);
1013 }
1014
1015 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1016                             int size, int flags)
1017 {
1018         return security_ops->socket_recvmsg(sock, msg, size, flags);
1019 }
1020
1021 int security_socket_getsockname(struct socket *sock)
1022 {
1023         return security_ops->socket_getsockname(sock);
1024 }
1025
1026 int security_socket_getpeername(struct socket *sock)
1027 {
1028         return security_ops->socket_getpeername(sock);
1029 }
1030
1031 int security_socket_getsockopt(struct socket *sock, int level, int optname)
1032 {
1033         return security_ops->socket_getsockopt(sock, level, optname);
1034 }
1035
1036 int security_socket_setsockopt(struct socket *sock, int level, int optname)
1037 {
1038         return security_ops->socket_setsockopt(sock, level, optname);
1039 }
1040
1041 int security_socket_shutdown(struct socket *sock, int how)
1042 {
1043         return security_ops->socket_shutdown(sock, how);
1044 }
1045
1046 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1047 {
1048         return security_ops->socket_sock_rcv_skb(sk, skb);
1049 }
1050 EXPORT_SYMBOL(security_sock_rcv_skb);
1051
1052 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1053                                       int __user *optlen, unsigned len)
1054 {
1055         return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
1056 }
1057
1058 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1059 {
1060         return security_ops->socket_getpeersec_dgram(sock, skb, secid);
1061 }
1062 EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1063
1064 int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1065 {
1066         return security_ops->sk_alloc_security(sk, family, priority);
1067 }
1068
1069 void security_sk_free(struct sock *sk)
1070 {
1071         security_ops->sk_free_security(sk);
1072 }
1073
1074 void security_sk_clone(const struct sock *sk, struct sock *newsk)
1075 {
1076         security_ops->sk_clone_security(sk, newsk);
1077 }
1078
1079 void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1080 {
1081         security_ops->sk_getsecid(sk, &fl->secid);
1082 }
1083 EXPORT_SYMBOL(security_sk_classify_flow);
1084
1085 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1086 {
1087         security_ops->req_classify_flow(req, fl);
1088 }
1089 EXPORT_SYMBOL(security_req_classify_flow);
1090
1091 void security_sock_graft(struct sock *sk, struct socket *parent)
1092 {
1093         security_ops->sock_graft(sk, parent);
1094 }
1095 EXPORT_SYMBOL(security_sock_graft);
1096
1097 int security_inet_conn_request(struct sock *sk,
1098                         struct sk_buff *skb, struct request_sock *req)
1099 {
1100         return security_ops->inet_conn_request(sk, skb, req);
1101 }
1102 EXPORT_SYMBOL(security_inet_conn_request);
1103
1104 void security_inet_csk_clone(struct sock *newsk,
1105                         const struct request_sock *req)
1106 {
1107         security_ops->inet_csk_clone(newsk, req);
1108 }
1109
1110 void security_inet_conn_established(struct sock *sk,
1111                         struct sk_buff *skb)
1112 {
1113         security_ops->inet_conn_established(sk, skb);
1114 }
1115
1116 #endif  /* CONFIG_SECURITY_NETWORK */
1117
1118 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1119
1120 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
1121 {
1122         return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx);
1123 }
1124 EXPORT_SYMBOL(security_xfrm_policy_alloc);
1125
1126 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1127                               struct xfrm_sec_ctx **new_ctxp)
1128 {
1129         return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
1130 }
1131
1132 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1133 {
1134         security_ops->xfrm_policy_free_security(ctx);
1135 }
1136 EXPORT_SYMBOL(security_xfrm_policy_free);
1137
1138 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1139 {
1140         return security_ops->xfrm_policy_delete_security(ctx);
1141 }
1142
1143 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
1144 {
1145         return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
1146 }
1147 EXPORT_SYMBOL(security_xfrm_state_alloc);
1148
1149 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1150                                       struct xfrm_sec_ctx *polsec, u32 secid)
1151 {
1152         if (!polsec)
1153                 return 0;
1154         /*
1155          * We want the context to be taken from secid which is usually
1156          * from the sock.
1157          */
1158         return security_ops->xfrm_state_alloc_security(x, NULL, secid);
1159 }
1160
1161 int security_xfrm_state_delete(struct xfrm_state *x)
1162 {
1163         return security_ops->xfrm_state_delete_security(x);
1164 }
1165 EXPORT_SYMBOL(security_xfrm_state_delete);
1166
1167 void security_xfrm_state_free(struct xfrm_state *x)
1168 {
1169         security_ops->xfrm_state_free_security(x);
1170 }
1171
1172 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1173 {
1174         return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
1175 }
1176
1177 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1178                                        struct xfrm_policy *xp, struct flowi *fl)
1179 {
1180         return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
1181 }
1182
1183 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1184 {
1185         return security_ops->xfrm_decode_session(skb, secid, 1);
1186 }
1187
1188 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1189 {
1190         int rc = security_ops->xfrm_decode_session(skb, &fl->secid, 0);
1191
1192         BUG_ON(rc);
1193 }
1194 EXPORT_SYMBOL(security_skb_classify_flow);
1195
1196 #endif  /* CONFIG_SECURITY_NETWORK_XFRM */
1197
1198 #ifdef CONFIG_KEYS
1199
1200 int security_key_alloc(struct key *key, const struct cred *cred,
1201                        unsigned long flags)
1202 {
1203         return security_ops->key_alloc(key, cred, flags);
1204 }
1205
1206 void security_key_free(struct key *key)
1207 {
1208         security_ops->key_free(key);
1209 }
1210
1211 int security_key_permission(key_ref_t key_ref,
1212                             const struct cred *cred, key_perm_t perm)
1213 {
1214         return security_ops->key_permission(key_ref, cred, perm);
1215 }
1216
1217 int security_key_getsecurity(struct key *key, char **_buffer)
1218 {
1219         return security_ops->key_getsecurity(key, _buffer);
1220 }
1221
1222 #endif  /* CONFIG_KEYS */
1223
1224 #ifdef CONFIG_AUDIT
1225
1226 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1227 {
1228         return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
1229 }
1230
1231 int security_audit_rule_known(struct audit_krule *krule)
1232 {
1233         return security_ops->audit_rule_known(krule);
1234 }
1235
1236 void security_audit_rule_free(void *lsmrule)
1237 {
1238         security_ops->audit_rule_free(lsmrule);
1239 }
1240
1241 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1242                               struct audit_context *actx)
1243 {
1244         return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
1245 }
1246
1247 #endif /* CONFIG_AUDIT */