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(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_sysctl(struct ctl_table *table, int op)
 186 {
 187         return security_ops->sysctl(table, op);
 188 }
 189
 190 int security_quotactl(int cmds, int type, int id, struct super_block *sb)
 191 {
 192         return security_ops->quotactl(cmds, type, id, sb);
 193 }
 194
 195 int security_quota_on(struct dentry *dentry)
 196 {
 197         return security_ops->quota_on(dentry);
 198 }
 199
 200 int security_syslog(int type, bool from_file)
 201 {
 202         return security_ops->syslog(type, from_file);
 203 }
 204
 205 int security_settime(struct timespec *ts, struct timezone *tz)
 206 {
 207         return security_ops->settime(ts, tz);
 208 }
 209
 210 int security_vm_enough_memory(long pages)
 211 {
 212         WARN_ON(current->mm == NULL);
 213         return security_ops->vm_enough_memory(current->mm, pages);
 214 }
 215
 216 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
 217 {
 218         WARN_ON(mm == NULL);
 219         return security_ops->vm_enough_memory(mm, pages);
 220 }
 221
 222 int security_vm_enough_memory_kern(long pages)
 223 {
 224         /* If current->mm is a kernel thread then we will pass NULL,
 225            for this specific case that is fine */
 226         return security_ops->vm_enough_memory(current->mm, pages);
 227 }
 228
 229 int security_bprm_set_creds(struct linux_binprm *bprm)
 230 {
 231         return security_ops->bprm_set_creds(bprm);
 232 }
 233
 234 int security_bprm_check(struct linux_binprm *bprm)
 235 {
 236         int ret;
 237
 238         ret = security_ops->bprm_check_security(bprm);
 239         if (ret)
 240                 return ret;
 241         return ima_bprm_check(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_umount(struct vfsmount *mnt, int flags)
 297 {
 298         return security_ops->sb_umount(mnt, flags);
 299 }
 300
 301 int security_sb_pivotroot(struct path *old_path, struct path *new_path)
 302 {
 303         return security_ops->sb_pivotroot(old_path, new_path);
 304 }
 305
 306 int security_sb_set_mnt_opts(struct super_block *sb,
 307                                 struct security_mnt_opts *opts)
 308 {
 309         return security_ops->sb_set_mnt_opts(sb, opts);
 310 }
 311 EXPORT_SYMBOL(security_sb_set_mnt_opts);
 312
 313 void security_sb_clone_mnt_opts(const struct super_block *oldsb,
 314                                 struct super_block *newsb)
 315 {
 316         security_ops->sb_clone_mnt_opts(oldsb, newsb);
 317 }
 318 EXPORT_SYMBOL(security_sb_clone_mnt_opts);
 319
 320 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
 321 {
 322         return security_ops->sb_parse_opts_str(options, opts);
 323 }
 324 EXPORT_SYMBOL(security_sb_parse_opts_str);
 325
 326 int security_inode_alloc(struct inode *inode)
 327 {
 328         int ret;
 329
 330         inode->i_security = NULL;
 331         ret =  security_ops->inode_alloc_security(inode);
 332         if (ret)
 333                 return ret;
 334         ret = ima_inode_alloc(inode);
 335         if (ret)
 336                 security_inode_free(inode);
 337         return ret;
 338 }
 339
 340 void security_inode_free(struct inode *inode)
 341 {
 342         ima_inode_free(inode);
 343         security_ops->inode_free_security(inode);
 344 }
 345
 346 int security_inode_init_security(struct inode *inode, struct inode *dir,
 347                                   char **name, void **value, size_t *len)
 348 {
 349         if (unlikely(IS_PRIVATE(inode)))
 350                 return -EOPNOTSUPP;
 351         return security_ops->inode_init_security(inode, dir, name, value, len);
 352 }
 353 EXPORT_SYMBOL(security_inode_init_security);
 354
 355 #ifdef CONFIG_SECURITY_PATH
 356 int security_path_mknod(struct path *dir, struct dentry *dentry, int mode,
 357                         unsigned int dev)
 358 {
 359         if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 360                 return 0;
 361         return security_ops->path_mknod(dir, dentry, mode, dev);
 362 }
 363 EXPORT_SYMBOL(security_path_mknod);
 364
 365 int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode)
 366 {
 367         if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 368                 return 0;
 369         return security_ops->path_mkdir(dir, dentry, mode);
 370 }
 371
 372 int security_path_rmdir(struct path *dir, struct dentry *dentry)
 373 {
 374         if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 375                 return 0;
 376         return security_ops->path_rmdir(dir, dentry);
 377 }
 378
 379 int security_path_unlink(struct path *dir, struct dentry *dentry)
 380 {
 381         if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 382                 return 0;
 383         return security_ops->path_unlink(dir, dentry);
 384 }
 385
 386 int security_path_symlink(struct path *dir, struct dentry *dentry,
 387                           const char *old_name)
 388 {
 389         if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 390                 return 0;
 391         return security_ops->path_symlink(dir, dentry, old_name);
 392 }
 393
 394 int security_path_link(struct dentry *old_dentry, struct path *new_dir,
 395                        struct dentry *new_dentry)
 396 {
 397         if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
 398                 return 0;
 399         return security_ops->path_link(old_dentry, new_dir, new_dentry);
 400 }
 401
 402 int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
 403                          struct path *new_dir, struct dentry *new_dentry)
 404 {
 405         if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
 406                      (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
 407                 return 0;
 408         return security_ops->path_rename(old_dir, old_dentry, new_dir,
 409                                          new_dentry);
 410 }
 411
 412 int security_path_truncate(struct path *path)
 413 {
 414         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 415                 return 0;
 416         return security_ops->path_truncate(path);
 417 }
 418
 419 int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
 420                         mode_t mode)
 421 {
 422         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 423                 return 0;
 424         return security_ops->path_chmod(dentry, mnt, mode);
 425 }
 426
 427 int security_path_chown(struct path *path, uid_t uid, gid_t gid)
 428 {
 429         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 430                 return 0;
 431         return security_ops->path_chown(path, uid, gid);
 432 }
 433
 434 int security_path_chroot(struct path *path)
 435 {
 436         return security_ops->path_chroot(path);
 437 }
 438 #endif
 439
 440 int security_inode_create(struct inode *dir, struct dentry *dentry, int mode)
 441 {
 442         if (unlikely(IS_PRIVATE(dir)))
 443                 return 0;
 444         return security_ops->inode_create(dir, dentry, mode);
 445 }
 446 EXPORT_SYMBOL_GPL(security_inode_create);
 447
 448 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
 449                          struct dentry *new_dentry)
 450 {
 451         if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
 452                 return 0;
 453         return security_ops->inode_link(old_dentry, dir, new_dentry);
 454 }
 455
 456 int security_inode_unlink(struct inode *dir, struct dentry *dentry)
 457 {
 458         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 459                 return 0;
 460         return security_ops->inode_unlink(dir, dentry);
 461 }
 462
 463 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
 464                             const char *old_name)
 465 {
 466         if (unlikely(IS_PRIVATE(dir)))
 467                 return 0;
 468         return security_ops->inode_symlink(dir, dentry, old_name);
 469 }
 470
 471 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 472 {
 473         if (unlikely(IS_PRIVATE(dir)))
 474                 return 0;
 475         return security_ops->inode_mkdir(dir, dentry, mode);
 476 }
 477 EXPORT_SYMBOL_GPL(security_inode_mkdir);
 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 int security_inode_setxattr(struct dentry *dentry, const char *name,
 540                             const void *value, size_t size, int flags)
 541 {
 542         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 543                 return 0;
 544         return security_ops->inode_setxattr(dentry, name, value, size, flags);
 545 }
 546
 547 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
 548                                   const void *value, size_t size, int flags)
 549 {
 550         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 551                 return;
 552         security_ops->inode_post_setxattr(dentry, name, value, size, flags);
 553 }
 554
 555 int security_inode_getxattr(struct dentry *dentry, const char *name)
 556 {
 557         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 558                 return 0;
 559         return security_ops->inode_getxattr(dentry, name);
 560 }
 561
 562 int security_inode_listxattr(struct dentry *dentry)
 563 {
 564         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 565                 return 0;
 566         return security_ops->inode_listxattr(dentry);
 567 }
 568
 569 int security_inode_removexattr(struct dentry *dentry, const char *name)
 570 {
 571         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 572                 return 0;
 573         return security_ops->inode_removexattr(dentry, name);
 574 }
 575
 576 int security_inode_need_killpriv(struct dentry *dentry)
 577 {
 578         return security_ops->inode_need_killpriv(dentry);
 579 }
 580
 581 int security_inode_killpriv(struct dentry *dentry)
 582 {
 583         return security_ops->inode_killpriv(dentry);
 584 }
 585
 586 int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
 587 {
 588         if (unlikely(IS_PRIVATE(inode)))
 589                 return -EOPNOTSUPP;
 590         return security_ops->inode_getsecurity(inode, name, buffer, alloc);
 591 }
 592
 593 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
 594 {
 595         if (unlikely(IS_PRIVATE(inode)))
 596                 return -EOPNOTSUPP;
 597         return security_ops->inode_setsecurity(inode, name, value, size, flags);
 598 }
 599
 600 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
 601 {
 602         if (unlikely(IS_PRIVATE(inode)))
 603                 return 0;
 604         return security_ops->inode_listsecurity(inode, buffer, buffer_size);
 605 }
 606
 607 void security_inode_getsecid(const struct inode *inode, u32 *secid)
 608 {
 609         security_ops->inode_getsecid(inode, secid);
 610 }
 611
 612 int security_file_permission(struct file *file, int mask)
 613 {
 614         int ret;
 615
 616         ret = security_ops->file_permission(file, mask);
 617         if (ret)
 618                 return ret;
 619
 620         return fsnotify_perm(file, mask);
 621 }
 622
 623 int security_file_alloc(struct file *file)
 624 {
 625         return security_ops->file_alloc_security(file);
 626 }
 627
 628 void security_file_free(struct file *file)
 629 {
 630         security_ops->file_free_security(file);
 631 }
 632
 633 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 634 {
 635         return security_ops->file_ioctl(file, cmd, arg);
 636 }
 637
 638 int security_file_mmap(struct file *file, unsigned long reqprot,
 639                         unsigned long prot, unsigned long flags,
 640                         unsigned long addr, unsigned long addr_only)
 641 {
 642         int ret;
 643
 644         ret = security_ops->file_mmap(file, reqprot, prot, flags, addr, addr_only);
 645         if (ret)
 646                 return ret;
 647         return ima_file_mmap(file, prot);
 648 }
 649
 650 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
 651                             unsigned long prot)
 652 {
 653         return security_ops->file_mprotect(vma, reqprot, prot);
 654 }
 655
 656 int security_file_lock(struct file *file, unsigned int cmd)
 657 {
 658         return security_ops->file_lock(file, cmd);
 659 }
 660
 661 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
 662 {
 663         return security_ops->file_fcntl(file, cmd, arg);
 664 }
 665
 666 int security_file_set_fowner(struct file *file)
 667 {
 668         return security_ops->file_set_fowner(file);
 669 }
 670
 671 int security_file_send_sigiotask(struct task_struct *tsk,
 672                                   struct fown_struct *fown, int sig)
 673 {
 674         return security_ops->file_send_sigiotask(tsk, fown, sig);
 675 }
 676
 677 int security_file_receive(struct file *file)
 678 {
 679         return security_ops->file_receive(file);
 680 }
 681
 682 int security_dentry_open(struct file *file, const struct cred *cred)
 683 {
 684         int ret;
 685
 686         ret = security_ops->dentry_open(file, cred);
 687         if (ret)
 688                 return ret;
 689
 690         return fsnotify_perm(file, MAY_OPEN);
 691 }
 692
 693 int security_task_create(unsigned long clone_flags)
 694 {
 695         return security_ops->task_create(clone_flags);
 696 }
 697
 698 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
 699 {
 700         return security_ops->cred_alloc_blank(cred, gfp);
 701 }
 702
 703 void security_cred_free(struct cred *cred)
 704 {
 705         security_ops->cred_free(cred);
 706 }
 707
 708 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
 709 {
 710         return security_ops->cred_prepare(new, old, gfp);
 711 }
 712
 713 void security_transfer_creds(struct cred *new, const struct cred *old)
 714 {
 715         security_ops->cred_transfer(new, old);
 716 }
 717
 718 int security_kernel_act_as(struct cred *new, u32 secid)
 719 {
 720         return security_ops->kernel_act_as(new, secid);
 721 }
 722
 723 int security_kernel_create_files_as(struct cred *new, struct inode *inode)
 724 {
 725         return security_ops->kernel_create_files_as(new, inode);
 726 }
 727
 728 int security_kernel_module_request(char *kmod_name)
 729 {
 730         return security_ops->kernel_module_request(kmod_name);
 731 }
 732
 733 int security_task_fix_setuid(struct cred *new, const struct cred *old,
 734                              int flags)
 735 {
 736         return security_ops->task_fix_setuid(new, old, flags);
 737 }
 738
 739 int security_task_setpgid(struct task_struct *p, pid_t pgid)
 740 {
 741         return security_ops->task_setpgid(p, pgid);
 742 }
 743
 744 int security_task_getpgid(struct task_struct *p)
 745 {
 746         return security_ops->task_getpgid(p);
 747 }
 748
 749 int security_task_getsid(struct task_struct *p)
 750 {
 751         return security_ops->task_getsid(p);
 752 }
 753
 754 void security_task_getsecid(struct task_struct *p, u32 *secid)
 755 {
 756         security_ops->task_getsecid(p, secid);
 757 }
 758 EXPORT_SYMBOL(security_task_getsecid);
 759
 760 int security_task_setnice(struct task_struct *p, int nice)
 761 {
 762         return security_ops->task_setnice(p, nice);
 763 }
 764
 765 int security_task_setioprio(struct task_struct *p, int ioprio)
 766 {
 767         return security_ops->task_setioprio(p, ioprio);
 768 }
 769
 770 int security_task_getioprio(struct task_struct *p)
 771 {
 772         return security_ops->task_getioprio(p);
 773 }
 774
 775 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
 776                 struct rlimit *new_rlim)
 777 {
 778         return security_ops->task_setrlimit(p, resource, new_rlim);
 779 }
 780
 781 int security_task_setscheduler(struct task_struct *p,
 782                                 int policy, struct sched_param *lp)
 783 {
 784         return security_ops->task_setscheduler(p, policy, lp);
 785 }
 786
 787 int security_task_getscheduler(struct task_struct *p)
 788 {
 789         return security_ops->task_getscheduler(p);
 790 }
 791
 792 int security_task_movememory(struct task_struct *p)
 793 {
 794         return security_ops->task_movememory(p);
 795 }
 796
 797 int security_task_kill(struct task_struct *p, struct siginfo *info,
 798                         int sig, u32 secid)
 799 {
 800         return security_ops->task_kill(p, info, sig, secid);
 801 }
 802
 803 int security_task_wait(struct task_struct *p)
 804 {
 805         return security_ops->task_wait(p);
 806 }
 807
 808 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
 809                          unsigned long arg4, unsigned long arg5)
 810 {
 811         return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
 812 }
 813
 814 void security_task_to_inode(struct task_struct *p, struct inode *inode)
 815 {
 816         security_ops->task_to_inode(p, inode);
 817 }
 818
 819 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
 820 {
 821         return security_ops->ipc_permission(ipcp, flag);
 822 }
 823
 824 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
 825 {
 826         security_ops->ipc_getsecid(ipcp, secid);
 827 }
 828
 829 int security_msg_msg_alloc(struct msg_msg *msg)
 830 {
 831         return security_ops->msg_msg_alloc_security(msg);
 832 }
 833
 834 void security_msg_msg_free(struct msg_msg *msg)
 835 {
 836         security_ops->msg_msg_free_security(msg);
 837 }
 838
 839 int security_msg_queue_alloc(struct msg_queue *msq)
 840 {
 841         return security_ops->msg_queue_alloc_security(msq);
 842 }
 843
 844 void security_msg_queue_free(struct msg_queue *msq)
 845 {
 846         security_ops->msg_queue_free_security(msq);
 847 }
 848
 849 int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
 850 {
 851         return security_ops->msg_queue_associate(msq, msqflg);
 852 }
 853
 854 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
 855 {
 856         return security_ops->msg_queue_msgctl(msq, cmd);
 857 }
 858
 859 int security_msg_queue_msgsnd(struct msg_queue *msq,
 860                                struct msg_msg *msg, int msqflg)
 861 {
 862         return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
 863 }
 864
 865 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
 866                                struct task_struct *target, long type, int mode)
 867 {
 868         return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
 869 }
 870
 871 int security_shm_alloc(struct shmid_kernel *shp)
 872 {
 873         return security_ops->shm_alloc_security(shp);
 874 }
 875
 876 void security_shm_free(struct shmid_kernel *shp)
 877 {
 878         security_ops->shm_free_security(shp);
 879 }
 880
 881 int security_shm_associate(struct shmid_kernel *shp, int shmflg)
 882 {
 883         return security_ops->shm_associate(shp, shmflg);
 884 }
 885
 886 int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
 887 {
 888         return security_ops->shm_shmctl(shp, cmd);
 889 }
 890
 891 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
 892 {
 893         return security_ops->shm_shmat(shp, shmaddr, shmflg);
 894 }
 895
 896 int security_sem_alloc(struct sem_array *sma)
 897 {
 898         return security_ops->sem_alloc_security(sma);
 899 }
 900
 901 void security_sem_free(struct sem_array *sma)
 902 {
 903         security_ops->sem_free_security(sma);
 904 }
 905
 906 int security_sem_associate(struct sem_array *sma, int semflg)
 907 {
 908         return security_ops->sem_associate(sma, semflg);
 909 }
 910
 911 int security_sem_semctl(struct sem_array *sma, int cmd)
 912 {
 913         return security_ops->sem_semctl(sma, cmd);
 914 }
 915
 916 int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
 917                         unsigned nsops, int alter)
 918 {
 919         return security_ops->sem_semop(sma, sops, nsops, alter);
 920 }
 921
 922 void security_d_instantiate(struct dentry *dentry, struct inode *inode)
 923 {
 924         if (unlikely(inode && IS_PRIVATE(inode)))
 925                 return;
 926         security_ops->d_instantiate(dentry, inode);
 927 }
 928 EXPORT_SYMBOL(security_d_instantiate);
 929
 930 int security_getprocattr(struct task_struct *p, char *name, char **value)
 931 {
 932         return security_ops->getprocattr(p, name, value);
 933 }
 934
 935 int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
 936 {
 937         return security_ops->setprocattr(p, name, value, size);
 938 }
 939
 940 int security_netlink_send(struct sock *sk, struct sk_buff *skb)
 941 {
 942         return security_ops->netlink_send(sk, skb);
 943 }
 944
 945 int security_netlink_recv(struct sk_buff *skb, int cap)
 946 {
 947         return security_ops->netlink_recv(skb, cap);
 948 }
 949 EXPORT_SYMBOL(security_netlink_recv);
 950
 951 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
 952 {
 953         return security_ops->secid_to_secctx(secid, secdata, seclen);
 954 }
 955 EXPORT_SYMBOL(security_secid_to_secctx);
 956
 957 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
 958 {
 959         return security_ops->secctx_to_secid(secdata, seclen, secid);
 960 }
 961 EXPORT_SYMBOL(security_secctx_to_secid);
 962
 963 void security_release_secctx(char *secdata, u32 seclen)
 964 {
 965         security_ops->release_secctx(secdata, seclen);
 966 }
 967 EXPORT_SYMBOL(security_release_secctx);
 968
 969 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
 970 {
 971         return security_ops->inode_notifysecctx(inode, ctx, ctxlen);
 972 }
 973 EXPORT_SYMBOL(security_inode_notifysecctx);
 974
 975 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
 976 {
 977         return security_ops->inode_setsecctx(dentry, ctx, ctxlen);
 978 }
 979 EXPORT_SYMBOL(security_inode_setsecctx);
 980
 981 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
 982 {
 983         return security_ops->inode_getsecctx(inode, ctx, ctxlen);
 984 }
 985 EXPORT_SYMBOL(security_inode_getsecctx);
 986
 987 #ifdef CONFIG_SECURITY_NETWORK
 988
 989 int security_unix_stream_connect(struct socket *sock, struct socket *other,
 990                                  struct sock *newsk)
 991 {
 992         return security_ops->unix_stream_connect(sock, other, newsk);
 993 }
 994 EXPORT_SYMBOL(security_unix_stream_connect);
 995
 996 int security_unix_may_send(struct socket *sock,  struct socket *other)
 997 {
 998         return security_ops->unix_may_send(sock, other);
 999 }
1000 EXPORT_SYMBOL(security_unix_may_send);
1001
1002 int security_socket_create(int family, int type, int protocol, int kern)
1003 {
1004         return security_ops->socket_create(family, type, protocol, kern);
1005 }
1006
1007 int security_socket_post_create(struct socket *sock, int family,
1008                                 int type, int protocol, int kern)
1009 {
1010         return security_ops->socket_post_create(sock, family, type,
1011                                                 protocol, kern);
1012 }
1013
1014 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
1015 {
1016         return security_ops->socket_bind(sock, address, addrlen);
1017 }
1018
1019 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
1020 {
1021         return security_ops->socket_connect(sock, address, addrlen);
1022 }
1023
1024 int security_socket_listen(struct socket *sock, int backlog)
1025 {
1026         return security_ops->socket_listen(sock, backlog);
1027 }
1028
1029 int security_socket_accept(struct socket *sock, struct socket *newsock)
1030 {
1031         return security_ops->socket_accept(sock, newsock);
1032 }
1033
1034 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1035 {
1036         return security_ops->socket_sendmsg(sock, msg, size);
1037 }
1038
1039 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1040                             int size, int flags)
1041 {
1042         return security_ops->socket_recvmsg(sock, msg, size, flags);
1043 }
1044
1045 int security_socket_getsockname(struct socket *sock)
1046 {
1047         return security_ops->socket_getsockname(sock);
1048 }
1049
1050 int security_socket_getpeername(struct socket *sock)
1051 {
1052         return security_ops->socket_getpeername(sock);
1053 }
1054
1055 int security_socket_getsockopt(struct socket *sock, int level, int optname)
1056 {
1057         return security_ops->socket_getsockopt(sock, level, optname);
1058 }
1059
1060 int security_socket_setsockopt(struct socket *sock, int level, int optname)
1061 {
1062         return security_ops->socket_setsockopt(sock, level, optname);
1063 }
1064
1065 int security_socket_shutdown(struct socket *sock, int how)
1066 {
1067         return security_ops->socket_shutdown(sock, how);
1068 }
1069
1070 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1071 {
1072         return security_ops->socket_sock_rcv_skb(sk, skb);
1073 }
1074 EXPORT_SYMBOL(security_sock_rcv_skb);
1075
1076 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1077                                       int __user *optlen, unsigned len)
1078 {
1079         return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
1080 }
1081
1082 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1083 {
1084         return security_ops->socket_getpeersec_dgram(sock, skb, secid);
1085 }
1086 EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1087
1088 int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1089 {
1090         return security_ops->sk_alloc_security(sk, family, priority);
1091 }
1092
1093 void security_sk_free(struct sock *sk)
1094 {
1095         security_ops->sk_free_security(sk);
1096 }
1097
1098 void security_sk_clone(const struct sock *sk, struct sock *newsk)
1099 {
1100         security_ops->sk_clone_security(sk, newsk);
1101 }
1102
1103 void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1104 {
1105         security_ops->sk_getsecid(sk, &fl->secid);
1106 }
1107 EXPORT_SYMBOL(security_sk_classify_flow);
1108
1109 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1110 {
1111         security_ops->req_classify_flow(req, fl);
1112 }
1113 EXPORT_SYMBOL(security_req_classify_flow);
1114
1115 void security_sock_graft(struct sock *sk, struct socket *parent)
1116 {
1117         security_ops->sock_graft(sk, parent);
1118 }
1119 EXPORT_SYMBOL(security_sock_graft);
1120
1121 int security_inet_conn_request(struct sock *sk,
1122                         struct sk_buff *skb, struct request_sock *req)
1123 {
1124         return security_ops->inet_conn_request(sk, skb, req);
1125 }
1126 EXPORT_SYMBOL(security_inet_conn_request);
1127
1128 void security_inet_csk_clone(struct sock *newsk,
1129                         const struct request_sock *req)
1130 {
1131         security_ops->inet_csk_clone(newsk, req);
1132 }
1133
1134 void security_inet_conn_established(struct sock *sk,
1135                         struct sk_buff *skb)
1136 {
1137         security_ops->inet_conn_established(sk, skb);
1138 }
1139
1140 int security_tun_dev_create(void)
1141 {
1142         return security_ops->tun_dev_create();
1143 }
1144 EXPORT_SYMBOL(security_tun_dev_create);
1145
1146 void security_tun_dev_post_create(struct sock *sk)
1147 {
1148         return security_ops->tun_dev_post_create(sk);
1149 }
1150 EXPORT_SYMBOL(security_tun_dev_post_create);
1151
1152 int security_tun_dev_attach(struct sock *sk)
1153 {
1154         return security_ops->tun_dev_attach(sk);
1155 }
1156 EXPORT_SYMBOL(security_tun_dev_attach);
1157
1158 #endif  /* CONFIG_SECURITY_NETWORK */
1159
1160 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1161
1162 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
1163 {
1164         return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx);
1165 }
1166 EXPORT_SYMBOL(security_xfrm_policy_alloc);
1167
1168 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1169                               struct xfrm_sec_ctx **new_ctxp)
1170 {
1171         return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
1172 }
1173
1174 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1175 {
1176         security_ops->xfrm_policy_free_security(ctx);
1177 }
1178 EXPORT_SYMBOL(security_xfrm_policy_free);
1179
1180 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1181 {
1182         return security_ops->xfrm_policy_delete_security(ctx);
1183 }
1184
1185 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
1186 {
1187         return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
1188 }
1189 EXPORT_SYMBOL(security_xfrm_state_alloc);
1190
1191 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1192                                       struct xfrm_sec_ctx *polsec, u32 secid)
1193 {
1194         if (!polsec)
1195                 return 0;
1196         /*
1197          * We want the context to be taken from secid which is usually
1198          * from the sock.
1199          */
1200         return security_ops->xfrm_state_alloc_security(x, NULL, secid);
1201 }
1202
1203 int security_xfrm_state_delete(struct xfrm_state *x)
1204 {
1205         return security_ops->xfrm_state_delete_security(x);
1206 }
1207 EXPORT_SYMBOL(security_xfrm_state_delete);
1208
1209 void security_xfrm_state_free(struct xfrm_state *x)
1210 {
1211         security_ops->xfrm_state_free_security(x);
1212 }
1213
1214 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1215 {
1216         return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
1217 }
1218
1219 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1220                                        struct xfrm_policy *xp, struct flowi *fl)
1221 {
1222         return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
1223 }
1224
1225 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1226 {
1227         return security_ops->xfrm_decode_session(skb, secid, 1);
1228 }
1229
1230 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1231 {
1232         int rc = security_ops->xfrm_decode_session(skb, &fl->secid, 0);
1233
1234         BUG_ON(rc);
1235 }
1236 EXPORT_SYMBOL(security_skb_classify_flow);
1237
1238 #endif  /* CONFIG_SECURITY_NETWORK_XFRM */
1239
1240 #ifdef CONFIG_KEYS
1241
1242 int security_key_alloc(struct key *key, const struct cred *cred,
1243                        unsigned long flags)
1244 {
1245         return security_ops->key_alloc(key, cred, flags);
1246 }
1247
1248 void security_key_free(struct key *key)
1249 {
1250         security_ops->key_free(key);
1251 }
1252
1253 int security_key_permission(key_ref_t key_ref,
1254                             const struct cred *cred, key_perm_t perm)
1255 {
1256         return security_ops->key_permission(key_ref, cred, perm);
1257 }
1258
1259 int security_key_getsecurity(struct key *key, char **_buffer)
1260 {
1261         return security_ops->key_getsecurity(key, _buffer);
1262 }
1263
1264 #endif  /* CONFIG_KEYS */
1265
1266 #ifdef CONFIG_AUDIT
1267
1268 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1269 {
1270         return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
1271 }
1272
1273 int security_audit_rule_known(struct audit_krule *krule)
1274 {
1275         return security_ops->audit_rule_known(krule);
1276 }
1277
1278 void security_audit_rule_free(void *lsmrule)
1279 {
1280         security_ops->audit_rule_free(lsmrule);
1281 }
1282
1283 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1284                               struct audit_context *actx)
1285 {
1286         return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
1287 }
1288
1289 #endif /* CONFIG_AUDIT */