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 #include <linux/ima.h>
  20
  21 /* Boot-time LSM user choice */
  22 static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
  23         CONFIG_DEFAULT_SECURITY;
  24
  25 /* things that live in capability.c */
  26 extern void __init security_fixup_ops(struct security_operations *ops);
  27
  28 static struct security_operations *security_ops;
  29 static struct security_operations default_security_ops = {
  30         .name   = "default",
  31 };
  32
  33 static inline int __init verify(struct security_operations *ops)
  34 {
  35         /* verify the security_operations structure exists */
  36         if (!ops)
  37                 return -EINVAL;
  38         security_fixup_ops(ops);
  39         return 0;
  40 }
  41
  42 static void __init do_security_initcalls(void)
  43 {
  44         initcall_t *call;
  45         call = __security_initcall_start;
  46         while (call < __security_initcall_end) {
  47                 (*call) ();
  48                 call++;
  49         }
  50 }
  51
  52 /**
  53  * security_init - initializes the security framework
  54  *
  55  * This should be called early in the kernel initialization sequence.
  56  */
  57 int __init security_init(void)
  58 {
  59         printk(KERN_INFO "Security Framework initialized\n");
  60
  61         security_fixup_ops(&default_security_ops);
  62         security_ops = &default_security_ops;
  63         do_security_initcalls();
  64
  65         return 0;
  66 }
  67
  68 void reset_security_ops(void)
  69 {
  70         security_ops = &default_security_ops;
  71 }
  72
  73 /* Save user chosen LSM */
  74 static int __init choose_lsm(char *str)
  75 {
  76         strncpy(chosen_lsm, str, SECURITY_NAME_MAX);
  77         return 1;
  78 }
  79 __setup("security=", choose_lsm);
  80
  81 /**
  82  * security_module_enable - Load given security module on boot ?
  83  * @ops: a pointer to the struct security_operations that is to be checked.
  84  *
  85  * Each LSM must pass this method before registering its own operations
  86  * to avoid security registration races. This method may also be used
  87  * to check if your LSM is currently loaded during kernel initialization.
  88  *
  89  * Return true if:
  90  *      -The passed LSM is the one chosen by user at boot time,
  91  *      -or the passed LSM is configured as the default and the user did not
  92  *       choose an alternate LSM at boot time.
  93  * Otherwise, return false.
  94  */
  95 int __init security_module_enable(struct security_operations *ops)
  96 {
  97         return !strcmp(ops->name, chosen_lsm);
  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 __init 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_access_check(struct task_struct *child, unsigned int mode)
 131 {
 132         return security_ops->ptrace_access_check(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(const struct cred *cred, struct user_namespace *ns,
 158                      int cap)
 159 {
 160         return security_ops->capable(cred, ns, cap, SECURITY_CAP_AUDIT);
 161 }
 162
 163 int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
 164                              int cap)
 165 {
 166         return security_ops->capable(cred, ns, cap, SECURITY_CAP_NOAUDIT);
 167 }
 168
 169 int security_quotactl(int cmds, int type, int id, struct super_block *sb)
 170 {
 171         return security_ops->quotactl(cmds, type, id, sb);
 172 }
 173
 174 int security_quota_on(struct dentry *dentry)
 175 {
 176         return security_ops->quota_on(dentry);
 177 }
 178
 179 int security_syslog(int type)
 180 {
 181         return security_ops->syslog(type);
 182 }
 183
 184 int security_settime(const struct timespec *ts, const struct timezone *tz)
 185 {
 186         return security_ops->settime(ts, tz);
 187 }
 188
 189 int security_vm_enough_memory(long pages)
 190 {
 191         WARN_ON(current->mm == NULL);
 192         return security_ops->vm_enough_memory(current->mm, pages);
 193 }
 194
 195 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
 196 {
 197         WARN_ON(mm == NULL);
 198         return security_ops->vm_enough_memory(mm, pages);
 199 }
 200
 201 int security_vm_enough_memory_kern(long pages)
 202 {
 203         /* If current->mm is a kernel thread then we will pass NULL,
 204            for this specific case that is fine */
 205         return security_ops->vm_enough_memory(current->mm, pages);
 206 }
 207
 208 int security_bprm_set_creds(struct linux_binprm *bprm)
 209 {
 210         return security_ops->bprm_set_creds(bprm);
 211 }
 212
 213 int security_bprm_check(struct linux_binprm *bprm)
 214 {
 215         int ret;
 216
 217         ret = security_ops->bprm_check_security(bprm);
 218         if (ret)
 219                 return ret;
 220         return ima_bprm_check(bprm);
 221 }
 222
 223 void security_bprm_committing_creds(struct linux_binprm *bprm)
 224 {
 225         security_ops->bprm_committing_creds(bprm);
 226 }
 227
 228 void security_bprm_committed_creds(struct linux_binprm *bprm)
 229 {
 230         security_ops->bprm_committed_creds(bprm);
 231 }
 232
 233 int security_bprm_secureexec(struct linux_binprm *bprm)
 234 {
 235         return security_ops->bprm_secureexec(bprm);
 236 }
 237
 238 int security_sb_alloc(struct super_block *sb)
 239 {
 240         return security_ops->sb_alloc_security(sb);
 241 }
 242
 243 void security_sb_free(struct super_block *sb)
 244 {
 245         security_ops->sb_free_security(sb);
 246 }
 247
 248 int security_sb_copy_data(char *orig, char *copy)
 249 {
 250         return security_ops->sb_copy_data(orig, copy);
 251 }
 252 EXPORT_SYMBOL(security_sb_copy_data);
 253
 254 int security_sb_remount(struct super_block *sb, void *data)
 255 {
 256         return security_ops->sb_remount(sb, data);
 257 }
 258
 259 int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
 260 {
 261         return security_ops->sb_kern_mount(sb, flags, data);
 262 }
 263
 264 int security_sb_show_options(struct seq_file *m, struct super_block *sb)
 265 {
 266         return security_ops->sb_show_options(m, sb);
 267 }
 268
 269 int security_sb_statfs(struct dentry *dentry)
 270 {
 271         return security_ops->sb_statfs(dentry);
 272 }
 273
 274 int security_sb_mount(char *dev_name, struct path *path,
 275                        char *type, unsigned long flags, void *data)
 276 {
 277         return security_ops->sb_mount(dev_name, path, type, flags, data);
 278 }
 279
 280 int security_sb_umount(struct vfsmount *mnt, int flags)
 281 {
 282         return security_ops->sb_umount(mnt, flags);
 283 }
 284
 285 int security_sb_pivotroot(struct path *old_path, struct path *new_path)
 286 {
 287         return security_ops->sb_pivotroot(old_path, new_path);
 288 }
 289
 290 int security_sb_set_mnt_opts(struct super_block *sb,
 291                                 struct security_mnt_opts *opts)
 292 {
 293         return security_ops->sb_set_mnt_opts(sb, opts);
 294 }
 295 EXPORT_SYMBOL(security_sb_set_mnt_opts);
 296
 297 void security_sb_clone_mnt_opts(const struct super_block *oldsb,
 298                                 struct super_block *newsb)
 299 {
 300         security_ops->sb_clone_mnt_opts(oldsb, newsb);
 301 }
 302 EXPORT_SYMBOL(security_sb_clone_mnt_opts);
 303
 304 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
 305 {
 306         return security_ops->sb_parse_opts_str(options, opts);
 307 }
 308 EXPORT_SYMBOL(security_sb_parse_opts_str);
 309
 310 int security_inode_alloc(struct inode *inode)
 311 {
 312         inode->i_security = NULL;
 313         return security_ops->inode_alloc_security(inode);
 314 }
 315
 316 void security_inode_free(struct inode *inode)
 317 {
 318         ima_inode_free(inode);
 319         security_ops->inode_free_security(inode);
 320 }
 321
 322 int security_inode_init_security(struct inode *inode, struct inode *dir,
 323                                  const struct qstr *qstr, char **name,
 324                                  void **value, size_t *len)
 325 {
 326         if (unlikely(IS_PRIVATE(inode)))
 327                 return -EOPNOTSUPP;
 328         return security_ops->inode_init_security(inode, dir, qstr, name, value,
 329                                                  len);
 330 }
 331 EXPORT_SYMBOL(security_inode_init_security);
 332
 333 #ifdef CONFIG_SECURITY_PATH
 334 int security_path_mknod(struct path *dir, struct dentry *dentry, int mode,
 335                         unsigned int dev)
 336 {
 337         if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 338                 return 0;
 339         return security_ops->path_mknod(dir, dentry, mode, dev);
 340 }
 341 EXPORT_SYMBOL(security_path_mknod);
 342
 343 int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode)
 344 {
 345         if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 346                 return 0;
 347         return security_ops->path_mkdir(dir, dentry, mode);
 348 }
 349 EXPORT_SYMBOL(security_path_mkdir);
 350
 351 int security_path_rmdir(struct path *dir, struct dentry *dentry)
 352 {
 353         if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 354                 return 0;
 355         return security_ops->path_rmdir(dir, dentry);
 356 }
 357
 358 int security_path_unlink(struct path *dir, struct dentry *dentry)
 359 {
 360         if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 361                 return 0;
 362         return security_ops->path_unlink(dir, dentry);
 363 }
 364 EXPORT_SYMBOL(security_path_unlink);
 365
 366 int security_path_symlink(struct path *dir, struct dentry *dentry,
 367                           const char *old_name)
 368 {
 369         if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 370                 return 0;
 371         return security_ops->path_symlink(dir, dentry, old_name);
 372 }
 373
 374 int security_path_link(struct dentry *old_dentry, struct path *new_dir,
 375                        struct dentry *new_dentry)
 376 {
 377         if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
 378                 return 0;
 379         return security_ops->path_link(old_dentry, new_dir, new_dentry);
 380 }
 381
 382 int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
 383                          struct path *new_dir, struct dentry *new_dentry)
 384 {
 385         if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
 386                      (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
 387                 return 0;
 388         return security_ops->path_rename(old_dir, old_dentry, new_dir,
 389                                          new_dentry);
 390 }
 391 EXPORT_SYMBOL(security_path_rename);
 392
 393 int security_path_truncate(struct path *path)
 394 {
 395         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 396                 return 0;
 397         return security_ops->path_truncate(path);
 398 }
 399
 400 int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
 401                         mode_t mode)
 402 {
 403         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 404                 return 0;
 405         return security_ops->path_chmod(dentry, mnt, mode);
 406 }
 407
 408 int security_path_chown(struct path *path, uid_t uid, gid_t gid)
 409 {
 410         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 411                 return 0;
 412         return security_ops->path_chown(path, uid, gid);
 413 }
 414
 415 int security_path_chroot(struct path *path)
 416 {
 417         return security_ops->path_chroot(path);
 418 }
 419 #endif
 420
 421 int security_inode_create(struct inode *dir, struct dentry *dentry, int mode)
 422 {
 423         if (unlikely(IS_PRIVATE(dir)))
 424                 return 0;
 425         return security_ops->inode_create(dir, dentry, mode);
 426 }
 427 EXPORT_SYMBOL_GPL(security_inode_create);
 428
 429 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
 430                          struct dentry *new_dentry)
 431 {
 432         if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
 433                 return 0;
 434         return security_ops->inode_link(old_dentry, dir, new_dentry);
 435 }
 436
 437 int security_inode_unlink(struct inode *dir, struct dentry *dentry)
 438 {
 439         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 440                 return 0;
 441         return security_ops->inode_unlink(dir, dentry);
 442 }
 443
 444 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
 445                             const char *old_name)
 446 {
 447         if (unlikely(IS_PRIVATE(dir)))
 448                 return 0;
 449         return security_ops->inode_symlink(dir, dentry, old_name);
 450 }
 451
 452 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 453 {
 454         if (unlikely(IS_PRIVATE(dir)))
 455                 return 0;
 456         return security_ops->inode_mkdir(dir, dentry, mode);
 457 }
 458 EXPORT_SYMBOL_GPL(security_inode_mkdir);
 459
 460 int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
 461 {
 462         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 463                 return 0;
 464         return security_ops->inode_rmdir(dir, dentry);
 465 }
 466
 467 int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
 468 {
 469         if (unlikely(IS_PRIVATE(dir)))
 470                 return 0;
 471         return security_ops->inode_mknod(dir, dentry, mode, dev);
 472 }
 473
 474 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
 475                            struct inode *new_dir, struct dentry *new_dentry)
 476 {
 477         if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
 478             (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
 479                 return 0;
 480         return security_ops->inode_rename(old_dir, old_dentry,
 481                                            new_dir, new_dentry);
 482 }
 483
 484 int security_inode_readlink(struct dentry *dentry)
 485 {
 486         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 487                 return 0;
 488         return security_ops->inode_readlink(dentry);
 489 }
 490
 491 int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
 492 {
 493         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 494                 return 0;
 495         return security_ops->inode_follow_link(dentry, nd);
 496 }
 497
 498 int security_inode_permission(struct inode *inode, int mask)
 499 {
 500         if (unlikely(IS_PRIVATE(inode)))
 501                 return 0;
 502         return security_ops->inode_permission(inode, mask);
 503 }
 504
 505 int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
 506 {
 507         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 508                 return 0;
 509         return security_ops->inode_setattr(dentry, attr);
 510 }
 511 EXPORT_SYMBOL_GPL(security_inode_setattr);
 512
 513 int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
 514 {
 515         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 516                 return 0;
 517         return security_ops->inode_getattr(mnt, dentry);
 518 }
 519
 520 int security_inode_setxattr(struct dentry *dentry, const char *name,
 521                             const void *value, size_t size, int flags)
 522 {
 523         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 524                 return 0;
 525         return security_ops->inode_setxattr(dentry, name, value, size, flags);
 526 }
 527
 528 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
 529                                   const void *value, size_t size, int flags)
 530 {
 531         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 532                 return;
 533         security_ops->inode_post_setxattr(dentry, name, value, size, flags);
 534 }
 535
 536 int security_inode_getxattr(struct dentry *dentry, const char *name)
 537 {
 538         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 539                 return 0;
 540         return security_ops->inode_getxattr(dentry, name);
 541 }
 542
 543 int security_inode_listxattr(struct dentry *dentry)
 544 {
 545         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 546                 return 0;
 547         return security_ops->inode_listxattr(dentry);
 548 }
 549
 550 int security_inode_removexattr(struct dentry *dentry, const char *name)
 551 {
 552         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 553                 return 0;
 554         return security_ops->inode_removexattr(dentry, name);
 555 }
 556
 557 int security_inode_need_killpriv(struct dentry *dentry)
 558 {
 559         return security_ops->inode_need_killpriv(dentry);
 560 }
 561
 562 int security_inode_killpriv(struct dentry *dentry)
 563 {
 564         return security_ops->inode_killpriv(dentry);
 565 }
 566
 567 int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
 568 {
 569         if (unlikely(IS_PRIVATE(inode)))
 570                 return -EOPNOTSUPP;
 571         return security_ops->inode_getsecurity(inode, name, buffer, alloc);
 572 }
 573
 574 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
 575 {
 576         if (unlikely(IS_PRIVATE(inode)))
 577                 return -EOPNOTSUPP;
 578         return security_ops->inode_setsecurity(inode, name, value, size, flags);
 579 }
 580
 581 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
 582 {
 583         if (unlikely(IS_PRIVATE(inode)))
 584                 return 0;
 585         return security_ops->inode_listsecurity(inode, buffer, buffer_size);
 586 }
 587
 588 void security_inode_getsecid(const struct inode *inode, u32 *secid)
 589 {
 590         security_ops->inode_getsecid(inode, secid);
 591 }
 592
 593 int security_file_permission(struct file *file, int mask)
 594 {
 595         int ret;
 596
 597         ret = security_ops->file_permission(file, mask);
 598         if (ret)
 599                 return ret;
 600
 601         return fsnotify_perm(file, mask);
 602 }
 603
 604 int security_file_alloc(struct file *file)
 605 {
 606         return security_ops->file_alloc_security(file);
 607 }
 608
 609 void security_file_free(struct file *file)
 610 {
 611         security_ops->file_free_security(file);
 612 }
 613
 614 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 615 {
 616         return security_ops->file_ioctl(file, cmd, arg);
 617 }
 618
 619 int security_file_mmap(struct file *file, unsigned long reqprot,
 620                         unsigned long prot, unsigned long flags,
 621                         unsigned long addr, unsigned long addr_only)
 622 {
 623         int ret;
 624
 625         ret = security_ops->file_mmap(file, reqprot, prot, flags, addr, addr_only);
 626         if (ret)
 627                 return ret;
 628         return ima_file_mmap(file, prot);
 629 }
 630
 631 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
 632                             unsigned long prot)
 633 {
 634         return security_ops->file_mprotect(vma, reqprot, prot);
 635 }
 636
 637 int security_file_lock(struct file *file, unsigned int cmd)
 638 {
 639         return security_ops->file_lock(file, cmd);
 640 }
 641
 642 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
 643 {
 644         return security_ops->file_fcntl(file, cmd, arg);
 645 }
 646
 647 int security_file_set_fowner(struct file *file)
 648 {
 649         return security_ops->file_set_fowner(file);
 650 }
 651
 652 int security_file_send_sigiotask(struct task_struct *tsk,
 653                                   struct fown_struct *fown, int sig)
 654 {
 655         return security_ops->file_send_sigiotask(tsk, fown, sig);
 656 }
 657
 658 int security_file_receive(struct file *file)
 659 {
 660         return security_ops->file_receive(file);
 661 }
 662
 663 int security_dentry_open(struct file *file, const struct cred *cred)
 664 {
 665         int ret;
 666
 667         ret = security_ops->dentry_open(file, cred);
 668         if (ret)
 669                 return ret;
 670
 671         return fsnotify_perm(file, MAY_OPEN);
 672 }
 673
 674 int security_task_create(unsigned long clone_flags)
 675 {
 676         return security_ops->task_create(clone_flags);
 677 }
 678
 679 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
 680 {
 681         return security_ops->cred_alloc_blank(cred, gfp);
 682 }
 683
 684 void security_cred_free(struct cred *cred)
 685 {
 686         security_ops->cred_free(cred);
 687 }
 688
 689 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
 690 {
 691         return security_ops->cred_prepare(new, old, gfp);
 692 }
 693
 694 void security_transfer_creds(struct cred *new, const struct cred *old)
 695 {
 696         security_ops->cred_transfer(new, old);
 697 }
 698
 699 int security_kernel_act_as(struct cred *new, u32 secid)
 700 {
 701         return security_ops->kernel_act_as(new, secid);
 702 }
 703
 704 int security_kernel_create_files_as(struct cred *new, struct inode *inode)
 705 {
 706         return security_ops->kernel_create_files_as(new, inode);
 707 }
 708
 709 int security_kernel_module_request(char *kmod_name)
 710 {
 711         return security_ops->kernel_module_request(kmod_name);
 712 }
 713
 714 int security_task_fix_setuid(struct cred *new, const struct cred *old,
 715                              int flags)
 716 {
 717         return security_ops->task_fix_setuid(new, old, flags);
 718 }
 719
 720 int security_task_setpgid(struct task_struct *p, pid_t pgid)
 721 {
 722         return security_ops->task_setpgid(p, pgid);
 723 }
 724
 725 int security_task_getpgid(struct task_struct *p)
 726 {
 727         return security_ops->task_getpgid(p);
 728 }
 729
 730 int security_task_getsid(struct task_struct *p)
 731 {
 732         return security_ops->task_getsid(p);
 733 }
 734
 735 void security_task_getsecid(struct task_struct *p, u32 *secid)
 736 {
 737         security_ops->task_getsecid(p, secid);
 738 }
 739 EXPORT_SYMBOL(security_task_getsecid);
 740
 741 int security_task_setnice(struct task_struct *p, int nice)
 742 {
 743         return security_ops->task_setnice(p, nice);
 744 }
 745
 746 int security_task_setioprio(struct task_struct *p, int ioprio)
 747 {
 748         return security_ops->task_setioprio(p, ioprio);
 749 }
 750
 751 int security_task_getioprio(struct task_struct *p)
 752 {
 753         return security_ops->task_getioprio(p);
 754 }
 755
 756 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
 757                 struct rlimit *new_rlim)
 758 {
 759         return security_ops->task_setrlimit(p, resource, new_rlim);
 760 }
 761
 762 int security_task_setscheduler(struct task_struct *p)
 763 {
 764         return security_ops->task_setscheduler(p);
 765 }
 766
 767 int security_task_getscheduler(struct task_struct *p)
 768 {
 769         return security_ops->task_getscheduler(p);
 770 }
 771
 772 int security_task_movememory(struct task_struct *p)
 773 {
 774         return security_ops->task_movememory(p);
 775 }
 776
 777 int security_task_kill(struct task_struct *p, struct siginfo *info,
 778                         int sig, u32 secid)
 779 {
 780         return security_ops->task_kill(p, info, sig, secid);
 781 }
 782
 783 int security_task_wait(struct task_struct *p)
 784 {
 785         return security_ops->task_wait(p);
 786 }
 787
 788 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
 789                          unsigned long arg4, unsigned long arg5)
 790 {
 791         return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
 792 }
 793
 794 void security_task_to_inode(struct task_struct *p, struct inode *inode)
 795 {
 796         security_ops->task_to_inode(p, inode);
 797 }
 798
 799 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
 800 {
 801         return security_ops->ipc_permission(ipcp, flag);
 802 }
 803
 804 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
 805 {
 806         security_ops->ipc_getsecid(ipcp, secid);
 807 }
 808
 809 int security_msg_msg_alloc(struct msg_msg *msg)
 810 {
 811         return security_ops->msg_msg_alloc_security(msg);
 812 }
 813
 814 void security_msg_msg_free(struct msg_msg *msg)
 815 {
 816         security_ops->msg_msg_free_security(msg);
 817 }
 818
 819 int security_msg_queue_alloc(struct msg_queue *msq)
 820 {
 821         return security_ops->msg_queue_alloc_security(msq);
 822 }
 823
 824 void security_msg_queue_free(struct msg_queue *msq)
 825 {
 826         security_ops->msg_queue_free_security(msq);
 827 }
 828
 829 int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
 830 {
 831         return security_ops->msg_queue_associate(msq, msqflg);
 832 }
 833
 834 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
 835 {
 836         return security_ops->msg_queue_msgctl(msq, cmd);
 837 }
 838
 839 int security_msg_queue_msgsnd(struct msg_queue *msq,
 840                                struct msg_msg *msg, int msqflg)
 841 {
 842         return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
 843 }
 844
 845 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
 846                                struct task_struct *target, long type, int mode)
 847 {
 848         return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
 849 }
 850
 851 int security_shm_alloc(struct shmid_kernel *shp)
 852 {
 853         return security_ops->shm_alloc_security(shp);
 854 }
 855
 856 void security_shm_free(struct shmid_kernel *shp)
 857 {
 858         security_ops->shm_free_security(shp);
 859 }
 860
 861 int security_shm_associate(struct shmid_kernel *shp, int shmflg)
 862 {
 863         return security_ops->shm_associate(shp, shmflg);
 864 }
 865
 866 int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
 867 {
 868         return security_ops->shm_shmctl(shp, cmd);
 869 }
 870
 871 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
 872 {
 873         return security_ops->shm_shmat(shp, shmaddr, shmflg);
 874 }
 875
 876 int security_sem_alloc(struct sem_array *sma)
 877 {
 878         return security_ops->sem_alloc_security(sma);
 879 }
 880
 881 void security_sem_free(struct sem_array *sma)
 882 {
 883         security_ops->sem_free_security(sma);
 884 }
 885
 886 int security_sem_associate(struct sem_array *sma, int semflg)
 887 {
 888         return security_ops->sem_associate(sma, semflg);
 889 }
 890
 891 int security_sem_semctl(struct sem_array *sma, int cmd)
 892 {
 893         return security_ops->sem_semctl(sma, cmd);
 894 }
 895
 896 int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
 897                         unsigned nsops, int alter)
 898 {
 899         return security_ops->sem_semop(sma, sops, nsops, alter);
 900 }
 901
 902 void security_d_instantiate(struct dentry *dentry, struct inode *inode)
 903 {
 904         if (unlikely(inode && IS_PRIVATE(inode)))
 905                 return;
 906         security_ops->d_instantiate(dentry, inode);
 907 }
 908 EXPORT_SYMBOL(security_d_instantiate);
 909
 910 int security_getprocattr(struct task_struct *p, char *name, char **value)
 911 {
 912         return security_ops->getprocattr(p, name, value);
 913 }
 914
 915 int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
 916 {
 917         return security_ops->setprocattr(p, name, value, size);
 918 }
 919
 920 int security_netlink_send(struct sock *sk, struct sk_buff *skb)
 921 {
 922         return security_ops->netlink_send(sk, skb);
 923 }
 924
 925 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
 926 {
 927         return security_ops->secid_to_secctx(secid, secdata, seclen);
 928 }
 929 EXPORT_SYMBOL(security_secid_to_secctx);
 930
 931 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
 932 {
 933         return security_ops->secctx_to_secid(secdata, seclen, secid);
 934 }
 935 EXPORT_SYMBOL(security_secctx_to_secid);
 936
 937 void security_release_secctx(char *secdata, u32 seclen)
 938 {
 939         security_ops->release_secctx(secdata, seclen);
 940 }
 941 EXPORT_SYMBOL(security_release_secctx);
 942
 943 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
 944 {
 945         return security_ops->inode_notifysecctx(inode, ctx, ctxlen);
 946 }
 947 EXPORT_SYMBOL(security_inode_notifysecctx);
 948
 949 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
 950 {
 951         return security_ops->inode_setsecctx(dentry, ctx, ctxlen);
 952 }
 953 EXPORT_SYMBOL(security_inode_setsecctx);
 954
 955 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
 956 {
 957         return security_ops->inode_getsecctx(inode, ctx, ctxlen);
 958 }
 959 EXPORT_SYMBOL(security_inode_getsecctx);
 960
 961 #ifdef CONFIG_SECURITY_NETWORK
 962
 963 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk)
 964 {
 965         return security_ops->unix_stream_connect(sock, other, newsk);
 966 }
 967 EXPORT_SYMBOL(security_unix_stream_connect);
 968
 969 int security_unix_may_send(struct socket *sock,  struct socket *other)
 970 {
 971         return security_ops->unix_may_send(sock, other);
 972 }
 973 EXPORT_SYMBOL(security_unix_may_send);
 974
 975 int security_socket_create(int family, int type, int protocol, int kern)
 976 {
 977         return security_ops->socket_create(family, type, protocol, kern);
 978 }
 979
 980 int security_socket_post_create(struct socket *sock, int family,
 981                                 int type, int protocol, int kern)
 982 {
 983         return security_ops->socket_post_create(sock, family, type,
 984                                                 protocol, kern);
 985 }
 986
 987 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
 988 {
 989         return security_ops->socket_bind(sock, address, addrlen);
 990 }
 991
 992 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
 993 {
 994         return security_ops->socket_connect(sock, address, addrlen);
 995 }
 996
 997 int security_socket_listen(struct socket *sock, int backlog)
 998 {
 999         return security_ops->socket_listen(sock, backlog);
1000 }
1001
1002 int security_socket_accept(struct socket *sock, struct socket *newsock)
1003 {
1004         return security_ops->socket_accept(sock, newsock);
1005 }
1006
1007 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1008 {
1009         return security_ops->socket_sendmsg(sock, msg, size);
1010 }
1011
1012 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1013                             int size, int flags)
1014 {
1015         return security_ops->socket_recvmsg(sock, msg, size, flags);
1016 }
1017
1018 int security_socket_getsockname(struct socket *sock)
1019 {
1020         return security_ops->socket_getsockname(sock);
1021 }
1022
1023 int security_socket_getpeername(struct socket *sock)
1024 {
1025         return security_ops->socket_getpeername(sock);
1026 }
1027
1028 int security_socket_getsockopt(struct socket *sock, int level, int optname)
1029 {
1030         return security_ops->socket_getsockopt(sock, level, optname);
1031 }
1032
1033 int security_socket_setsockopt(struct socket *sock, int level, int optname)
1034 {
1035         return security_ops->socket_setsockopt(sock, level, optname);
1036 }
1037
1038 int security_socket_shutdown(struct socket *sock, int how)
1039 {
1040         return security_ops->socket_shutdown(sock, how);
1041 }
1042
1043 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1044 {
1045         return security_ops->socket_sock_rcv_skb(sk, skb);
1046 }
1047 EXPORT_SYMBOL(security_sock_rcv_skb);
1048
1049 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1050                                       int __user *optlen, unsigned len)
1051 {
1052         return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
1053 }
1054
1055 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1056 {
1057         return security_ops->socket_getpeersec_dgram(sock, skb, secid);
1058 }
1059 EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1060
1061 int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1062 {
1063         return security_ops->sk_alloc_security(sk, family, priority);
1064 }
1065
1066 void security_sk_free(struct sock *sk)
1067 {
1068         security_ops->sk_free_security(sk);
1069 }
1070
1071 void security_sk_clone(const struct sock *sk, struct sock *newsk)
1072 {
1073         security_ops->sk_clone_security(sk, newsk);
1074 }
1075 EXPORT_SYMBOL(security_sk_clone);
1076
1077 void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1078 {
1079         security_ops->sk_getsecid(sk, &fl->flowi_secid);
1080 }
1081 EXPORT_SYMBOL(security_sk_classify_flow);
1082
1083 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1084 {
1085         security_ops->req_classify_flow(req, fl);
1086 }
1087 EXPORT_SYMBOL(security_req_classify_flow);
1088
1089 void security_sock_graft(struct sock *sk, struct socket *parent)
1090 {
1091         security_ops->sock_graft(sk, parent);
1092 }
1093 EXPORT_SYMBOL(security_sock_graft);
1094
1095 int security_inet_conn_request(struct sock *sk,
1096                         struct sk_buff *skb, struct request_sock *req)
1097 {
1098         return security_ops->inet_conn_request(sk, skb, req);
1099 }
1100 EXPORT_SYMBOL(security_inet_conn_request);
1101
1102 void security_inet_csk_clone(struct sock *newsk,
1103                         const struct request_sock *req)
1104 {
1105         security_ops->inet_csk_clone(newsk, req);
1106 }
1107
1108 void security_inet_conn_established(struct sock *sk,
1109                         struct sk_buff *skb)
1110 {
1111         security_ops->inet_conn_established(sk, skb);
1112 }
1113
1114 int security_secmark_relabel_packet(u32 secid)
1115 {
1116         return security_ops->secmark_relabel_packet(secid);
1117 }
1118 EXPORT_SYMBOL(security_secmark_relabel_packet);
1119
1120 void security_secmark_refcount_inc(void)
1121 {
1122         security_ops->secmark_refcount_inc();
1123 }
1124 EXPORT_SYMBOL(security_secmark_refcount_inc);
1125
1126 void security_secmark_refcount_dec(void)
1127 {
1128         security_ops->secmark_refcount_dec();
1129 }
1130 EXPORT_SYMBOL(security_secmark_refcount_dec);
1131
1132 int security_tun_dev_create(void)
1133 {
1134         return security_ops->tun_dev_create();
1135 }
1136 EXPORT_SYMBOL(security_tun_dev_create);
1137
1138 void security_tun_dev_post_create(struct sock *sk)
1139 {
1140         return security_ops->tun_dev_post_create(sk);
1141 }
1142 EXPORT_SYMBOL(security_tun_dev_post_create);
1143
1144 int security_tun_dev_attach(struct sock *sk)
1145 {
1146         return security_ops->tun_dev_attach(sk);
1147 }
1148 EXPORT_SYMBOL(security_tun_dev_attach);
1149
1150 #endif  /* CONFIG_SECURITY_NETWORK */
1151
1152 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1153
1154 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
1155 {
1156         return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx);
1157 }
1158 EXPORT_SYMBOL(security_xfrm_policy_alloc);
1159
1160 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1161                               struct xfrm_sec_ctx **new_ctxp)
1162 {
1163         return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
1164 }
1165
1166 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1167 {
1168         security_ops->xfrm_policy_free_security(ctx);
1169 }
1170 EXPORT_SYMBOL(security_xfrm_policy_free);
1171
1172 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1173 {
1174         return security_ops->xfrm_policy_delete_security(ctx);
1175 }
1176
1177 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
1178 {
1179         return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
1180 }
1181 EXPORT_SYMBOL(security_xfrm_state_alloc);
1182
1183 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1184                                       struct xfrm_sec_ctx *polsec, u32 secid)
1185 {
1186         if (!polsec)
1187                 return 0;
1188         /*
1189          * We want the context to be taken from secid which is usually
1190          * from the sock.
1191          */
1192         return security_ops->xfrm_state_alloc_security(x, NULL, secid);
1193 }
1194
1195 int security_xfrm_state_delete(struct xfrm_state *x)
1196 {
1197         return security_ops->xfrm_state_delete_security(x);
1198 }
1199 EXPORT_SYMBOL(security_xfrm_state_delete);
1200
1201 void security_xfrm_state_free(struct xfrm_state *x)
1202 {
1203         security_ops->xfrm_state_free_security(x);
1204 }
1205
1206 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1207 {
1208         return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
1209 }
1210
1211 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1212                                        struct xfrm_policy *xp,
1213                                        const struct flowi *fl)
1214 {
1215         return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
1216 }
1217
1218 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1219 {
1220         return security_ops->xfrm_decode_session(skb, secid, 1);
1221 }
1222
1223 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1224 {
1225         int rc = security_ops->xfrm_decode_session(skb, &fl->flowi_secid, 0);
1226
1227         BUG_ON(rc);
1228 }
1229 EXPORT_SYMBOL(security_skb_classify_flow);
1230
1231 #endif  /* CONFIG_SECURITY_NETWORK_XFRM */
1232
1233 #ifdef CONFIG_KEYS
1234
1235 int security_key_alloc(struct key *key, const struct cred *cred,
1236                        unsigned long flags)
1237 {
1238         return security_ops->key_alloc(key, cred, flags);
1239 }
1240
1241 void security_key_free(struct key *key)
1242 {
1243         security_ops->key_free(key);
1244 }
1245
1246 int security_key_permission(key_ref_t key_ref,
1247                             const struct cred *cred, key_perm_t perm)
1248 {
1249         return security_ops->key_permission(key_ref, cred, perm);
1250 }
1251
1252 int security_key_getsecurity(struct key *key, char **_buffer)
1253 {
1254         return security_ops->key_getsecurity(key, _buffer);
1255 }
1256
1257 #endif  /* CONFIG_KEYS */
1258
1259 #ifdef CONFIG_AUDIT
1260
1261 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1262 {
1263         return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
1264 }
1265
1266 int security_audit_rule_known(struct audit_krule *krule)
1267 {
1268         return security_ops->audit_rule_known(krule);
1269 }
1270
1271 void security_audit_rule_free(void *lsmrule)
1272 {
1273         security_ops->audit_rule_free(lsmrule);
1274 }
1275
1276 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1277                               struct audit_context *actx)
1278 {
1279         return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
1280 }
1281
1282 #endif /* CONFIG_AUDIT */