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)
 201 {
 202         return security_ops->syslog(type);
 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         inode->i_security = NULL;
 329         return security_ops->inode_alloc_security(inode);
 330 }
 331
 332 void security_inode_free(struct inode *inode)
 333 {
 334         ima_inode_free(inode);
 335         security_ops->inode_free_security(inode);
 336 }
 337
 338 int security_inode_init_security(struct inode *inode, struct inode *dir,
 339                                   char **name, void **value, size_t *len)
 340 {
 341         if (unlikely(IS_PRIVATE(inode)))
 342                 return -EOPNOTSUPP;
 343         return security_ops->inode_init_security(inode, dir, name, value, len);
 344 }
 345 EXPORT_SYMBOL(security_inode_init_security);
 346
 347 #ifdef CONFIG_SECURITY_PATH
 348 int security_path_mknod(struct path *dir, struct dentry *dentry, int mode,
 349                         unsigned int dev)
 350 {
 351         if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 352                 return 0;
 353         return security_ops->path_mknod(dir, dentry, mode, dev);
 354 }
 355 EXPORT_SYMBOL(security_path_mknod);
 356
 357 int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode)
 358 {
 359         if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 360                 return 0;
 361         return security_ops->path_mkdir(dir, dentry, mode);
 362 }
 363
 364 int security_path_rmdir(struct path *dir, struct dentry *dentry)
 365 {
 366         if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 367                 return 0;
 368         return security_ops->path_rmdir(dir, dentry);
 369 }
 370
 371 int security_path_unlink(struct path *dir, struct dentry *dentry)
 372 {
 373         if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 374                 return 0;
 375         return security_ops->path_unlink(dir, dentry);
 376 }
 377
 378 int security_path_symlink(struct path *dir, struct dentry *dentry,
 379                           const char *old_name)
 380 {
 381         if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 382                 return 0;
 383         return security_ops->path_symlink(dir, dentry, old_name);
 384 }
 385
 386 int security_path_link(struct dentry *old_dentry, struct path *new_dir,
 387                        struct dentry *new_dentry)
 388 {
 389         if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
 390                 return 0;
 391         return security_ops->path_link(old_dentry, new_dir, new_dentry);
 392 }
 393
 394 int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
 395                          struct path *new_dir, struct dentry *new_dentry)
 396 {
 397         if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
 398                      (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
 399                 return 0;
 400         return security_ops->path_rename(old_dir, old_dentry, new_dir,
 401                                          new_dentry);
 402 }
 403
 404 int security_path_truncate(struct path *path)
 405 {
 406         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 407                 return 0;
 408         return security_ops->path_truncate(path);
 409 }
 410
 411 int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
 412                         mode_t mode)
 413 {
 414         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 415                 return 0;
 416         return security_ops->path_chmod(dentry, mnt, mode);
 417 }
 418
 419 int security_path_chown(struct path *path, uid_t uid, gid_t gid)
 420 {
 421         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 422                 return 0;
 423         return security_ops->path_chown(path, uid, gid);
 424 }
 425
 426 int security_path_chroot(struct path *path)
 427 {
 428         return security_ops->path_chroot(path);
 429 }
 430 #endif
 431
 432 int security_inode_create(struct inode *dir, struct dentry *dentry, int mode)
 433 {
 434         if (unlikely(IS_PRIVATE(dir)))
 435                 return 0;
 436         return security_ops->inode_create(dir, dentry, mode);
 437 }
 438 EXPORT_SYMBOL_GPL(security_inode_create);
 439
 440 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
 441                          struct dentry *new_dentry)
 442 {
 443         if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
 444                 return 0;
 445         return security_ops->inode_link(old_dentry, dir, new_dentry);
 446 }
 447
 448 int security_inode_unlink(struct inode *dir, struct dentry *dentry)
 449 {
 450         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 451                 return 0;
 452         return security_ops->inode_unlink(dir, dentry);
 453 }
 454
 455 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
 456                             const char *old_name)
 457 {
 458         if (unlikely(IS_PRIVATE(dir)))
 459                 return 0;
 460         return security_ops->inode_symlink(dir, dentry, old_name);
 461 }
 462
 463 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 464 {
 465         if (unlikely(IS_PRIVATE(dir)))
 466                 return 0;
 467         return security_ops->inode_mkdir(dir, dentry, mode);
 468 }
 469 EXPORT_SYMBOL_GPL(security_inode_mkdir);
 470
 471 int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
 472 {
 473         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 474                 return 0;
 475         return security_ops->inode_rmdir(dir, dentry);
 476 }
 477
 478 int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
 479 {
 480         if (unlikely(IS_PRIVATE(dir)))
 481                 return 0;
 482         return security_ops->inode_mknod(dir, dentry, mode, dev);
 483 }
 484
 485 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
 486                            struct inode *new_dir, struct dentry *new_dentry)
 487 {
 488         if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
 489             (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
 490                 return 0;
 491         return security_ops->inode_rename(old_dir, old_dentry,
 492                                            new_dir, new_dentry);
 493 }
 494
 495 int security_inode_readlink(struct dentry *dentry)
 496 {
 497         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 498                 return 0;
 499         return security_ops->inode_readlink(dentry);
 500 }
 501
 502 int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
 503 {
 504         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 505                 return 0;
 506         return security_ops->inode_follow_link(dentry, nd);
 507 }
 508
 509 int security_inode_permission(struct inode *inode, int mask)
 510 {
 511         if (unlikely(IS_PRIVATE(inode)))
 512                 return 0;
 513         return security_ops->inode_permission(inode, mask);
 514 }
 515
 516 int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
 517 {
 518         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 519                 return 0;
 520         return security_ops->inode_setattr(dentry, attr);
 521 }
 522 EXPORT_SYMBOL_GPL(security_inode_setattr);
 523
 524 int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
 525 {
 526         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 527                 return 0;
 528         return security_ops->inode_getattr(mnt, dentry);
 529 }
 530
 531 int security_inode_setxattr(struct dentry *dentry, const char *name,
 532                             const void *value, size_t size, int flags)
 533 {
 534         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 535                 return 0;
 536         return security_ops->inode_setxattr(dentry, name, value, size, flags);
 537 }
 538
 539 void security_inode_post_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;
 544         security_ops->inode_post_setxattr(dentry, name, value, size, flags);
 545 }
 546
 547 int security_inode_getxattr(struct dentry *dentry, const char *name)
 548 {
 549         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 550                 return 0;
 551         return security_ops->inode_getxattr(dentry, name);
 552 }
 553
 554 int security_inode_listxattr(struct dentry *dentry)
 555 {
 556         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 557                 return 0;
 558         return security_ops->inode_listxattr(dentry);
 559 }
 560
 561 int security_inode_removexattr(struct dentry *dentry, const char *name)
 562 {
 563         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 564                 return 0;
 565         return security_ops->inode_removexattr(dentry, name);
 566 }
 567
 568 int security_inode_need_killpriv(struct dentry *dentry)
 569 {
 570         return security_ops->inode_need_killpriv(dentry);
 571 }
 572
 573 int security_inode_killpriv(struct dentry *dentry)
 574 {
 575         return security_ops->inode_killpriv(dentry);
 576 }
 577
 578 int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
 579 {
 580         if (unlikely(IS_PRIVATE(inode)))
 581                 return -EOPNOTSUPP;
 582         return security_ops->inode_getsecurity(inode, name, buffer, alloc);
 583 }
 584
 585 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
 586 {
 587         if (unlikely(IS_PRIVATE(inode)))
 588                 return -EOPNOTSUPP;
 589         return security_ops->inode_setsecurity(inode, name, value, size, flags);
 590 }
 591
 592 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
 593 {
 594         if (unlikely(IS_PRIVATE(inode)))
 595                 return 0;
 596         return security_ops->inode_listsecurity(inode, buffer, buffer_size);
 597 }
 598
 599 void security_inode_getsecid(const struct inode *inode, u32 *secid)
 600 {
 601         security_ops->inode_getsecid(inode, secid);
 602 }
 603
 604 int security_file_permission(struct file *file, int mask)
 605 {
 606         int ret;
 607
 608         ret = security_ops->file_permission(file, mask);
 609         if (ret)
 610                 return ret;
 611
 612         return fsnotify_perm(file, mask);
 613 }
 614
 615 int security_file_alloc(struct file *file)
 616 {
 617         return security_ops->file_alloc_security(file);
 618 }
 619
 620 void security_file_free(struct file *file)
 621 {
 622         security_ops->file_free_security(file);
 623 }
 624
 625 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 626 {
 627         return security_ops->file_ioctl(file, cmd, arg);
 628 }
 629
 630 int security_file_mmap(struct file *file, unsigned long reqprot,
 631                         unsigned long prot, unsigned long flags,
 632                         unsigned long addr, unsigned long addr_only)
 633 {
 634         int ret;
 635
 636         ret = security_ops->file_mmap(file, reqprot, prot, flags, addr, addr_only);
 637         if (ret)
 638                 return ret;
 639         return ima_file_mmap(file, prot);
 640 }
 641
 642 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
 643                             unsigned long prot)
 644 {
 645         return security_ops->file_mprotect(vma, reqprot, prot);
 646 }
 647
 648 int security_file_lock(struct file *file, unsigned int cmd)
 649 {
 650         return security_ops->file_lock(file, cmd);
 651 }
 652
 653 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
 654 {
 655         return security_ops->file_fcntl(file, cmd, arg);
 656 }
 657
 658 int security_file_set_fowner(struct file *file)
 659 {
 660         return security_ops->file_set_fowner(file);
 661 }
 662
 663 int security_file_send_sigiotask(struct task_struct *tsk,
 664                                   struct fown_struct *fown, int sig)
 665 {
 666         return security_ops->file_send_sigiotask(tsk, fown, sig);
 667 }
 668
 669 int security_file_receive(struct file *file)
 670 {
 671         return security_ops->file_receive(file);
 672 }
 673
 674 int security_dentry_open(struct file *file, const struct cred *cred)
 675 {
 676         int ret;
 677
 678         ret = security_ops->dentry_open(file, cred);
 679         if (ret)
 680                 return ret;
 681
 682         return fsnotify_perm(file, MAY_OPEN);
 683 }
 684
 685 int security_task_create(unsigned long clone_flags)
 686 {
 687         return security_ops->task_create(clone_flags);
 688 }
 689
 690 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
 691 {
 692         return security_ops->cred_alloc_blank(cred, gfp);
 693 }
 694
 695 void security_cred_free(struct cred *cred)
 696 {
 697         security_ops->cred_free(cred);
 698 }
 699
 700 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
 701 {
 702         return security_ops->cred_prepare(new, old, gfp);
 703 }
 704
 705 void security_transfer_creds(struct cred *new, const struct cred *old)
 706 {
 707         security_ops->cred_transfer(new, old);
 708 }
 709
 710 int security_kernel_act_as(struct cred *new, u32 secid)
 711 {
 712         return security_ops->kernel_act_as(new, secid);
 713 }
 714
 715 int security_kernel_create_files_as(struct cred *new, struct inode *inode)
 716 {
 717         return security_ops->kernel_create_files_as(new, inode);
 718 }
 719
 720 int security_kernel_module_request(char *kmod_name)
 721 {
 722         return security_ops->kernel_module_request(kmod_name);
 723 }
 724
 725 int security_task_fix_setuid(struct cred *new, const struct cred *old,
 726                              int flags)
 727 {
 728         return security_ops->task_fix_setuid(new, old, flags);
 729 }
 730
 731 int security_task_setpgid(struct task_struct *p, pid_t pgid)
 732 {
 733         return security_ops->task_setpgid(p, pgid);
 734 }
 735
 736 int security_task_getpgid(struct task_struct *p)
 737 {
 738         return security_ops->task_getpgid(p);
 739 }
 740
 741 int security_task_getsid(struct task_struct *p)
 742 {
 743         return security_ops->task_getsid(p);
 744 }
 745
 746 void security_task_getsecid(struct task_struct *p, u32 *secid)
 747 {
 748         security_ops->task_getsecid(p, secid);
 749 }
 750 EXPORT_SYMBOL(security_task_getsecid);
 751
 752 int security_task_setnice(struct task_struct *p, int nice)
 753 {
 754         return security_ops->task_setnice(p, nice);
 755 }
 756
 757 int security_task_setioprio(struct task_struct *p, int ioprio)
 758 {
 759         return security_ops->task_setioprio(p, ioprio);
 760 }
 761
 762 int security_task_getioprio(struct task_struct *p)
 763 {
 764         return security_ops->task_getioprio(p);
 765 }
 766
 767 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
 768                 struct rlimit *new_rlim)
 769 {
 770         return security_ops->task_setrlimit(p, resource, new_rlim);
 771 }
 772
 773 int security_task_setscheduler(struct task_struct *p)
 774 {
 775         return security_ops->task_setscheduler(p);
 776 }
 777
 778 int security_task_getscheduler(struct task_struct *p)
 779 {
 780         return security_ops->task_getscheduler(p);
 781 }
 782
 783 int security_task_movememory(struct task_struct *p)
 784 {
 785         return security_ops->task_movememory(p);
 786 }
 787
 788 int security_task_kill(struct task_struct *p, struct siginfo *info,
 789                         int sig, u32 secid)
 790 {
 791         return security_ops->task_kill(p, info, sig, secid);
 792 }
 793
 794 int security_task_wait(struct task_struct *p)
 795 {
 796         return security_ops->task_wait(p);
 797 }
 798
 799 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
 800                          unsigned long arg4, unsigned long arg5)
 801 {
 802         return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
 803 }
 804
 805 void security_task_to_inode(struct task_struct *p, struct inode *inode)
 806 {
 807         security_ops->task_to_inode(p, inode);
 808 }
 809
 810 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
 811 {
 812         return security_ops->ipc_permission(ipcp, flag);
 813 }
 814
 815 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
 816 {
 817         security_ops->ipc_getsecid(ipcp, secid);
 818 }
 819
 820 int security_msg_msg_alloc(struct msg_msg *msg)
 821 {
 822         return security_ops->msg_msg_alloc_security(msg);
 823 }
 824
 825 void security_msg_msg_free(struct msg_msg *msg)
 826 {
 827         security_ops->msg_msg_free_security(msg);
 828 }
 829
 830 int security_msg_queue_alloc(struct msg_queue *msq)
 831 {
 832         return security_ops->msg_queue_alloc_security(msq);
 833 }
 834
 835 void security_msg_queue_free(struct msg_queue *msq)
 836 {
 837         security_ops->msg_queue_free_security(msq);
 838 }
 839
 840 int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
 841 {
 842         return security_ops->msg_queue_associate(msq, msqflg);
 843 }
 844
 845 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
 846 {
 847         return security_ops->msg_queue_msgctl(msq, cmd);
 848 }
 849
 850 int security_msg_queue_msgsnd(struct msg_queue *msq,
 851                                struct msg_msg *msg, int msqflg)
 852 {
 853         return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
 854 }
 855
 856 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
 857                                struct task_struct *target, long type, int mode)
 858 {
 859         return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
 860 }
 861
 862 int security_shm_alloc(struct shmid_kernel *shp)
 863 {
 864         return security_ops->shm_alloc_security(shp);
 865 }
 866
 867 void security_shm_free(struct shmid_kernel *shp)
 868 {
 869         security_ops->shm_free_security(shp);
 870 }
 871
 872 int security_shm_associate(struct shmid_kernel *shp, int shmflg)
 873 {
 874         return security_ops->shm_associate(shp, shmflg);
 875 }
 876
 877 int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
 878 {
 879         return security_ops->shm_shmctl(shp, cmd);
 880 }
 881
 882 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
 883 {
 884         return security_ops->shm_shmat(shp, shmaddr, shmflg);
 885 }
 886
 887 int security_sem_alloc(struct sem_array *sma)
 888 {
 889         return security_ops->sem_alloc_security(sma);
 890 }
 891
 892 void security_sem_free(struct sem_array *sma)
 893 {
 894         security_ops->sem_free_security(sma);
 895 }
 896
 897 int security_sem_associate(struct sem_array *sma, int semflg)
 898 {
 899         return security_ops->sem_associate(sma, semflg);
 900 }
 901
 902 int security_sem_semctl(struct sem_array *sma, int cmd)
 903 {
 904         return security_ops->sem_semctl(sma, cmd);
 905 }
 906
 907 int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
 908                         unsigned nsops, int alter)
 909 {
 910         return security_ops->sem_semop(sma, sops, nsops, alter);
 911 }
 912
 913 void security_d_instantiate(struct dentry *dentry, struct inode *inode)
 914 {
 915         if (unlikely(inode && IS_PRIVATE(inode)))
 916                 return;
 917         security_ops->d_instantiate(dentry, inode);
 918 }
 919 EXPORT_SYMBOL(security_d_instantiate);
 920
 921 int security_getprocattr(struct task_struct *p, char *name, char **value)
 922 {
 923         return security_ops->getprocattr(p, name, value);
 924 }
 925
 926 int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
 927 {
 928         return security_ops->setprocattr(p, name, value, size);
 929 }
 930
 931 int security_netlink_send(struct sock *sk, struct sk_buff *skb)
 932 {
 933         return security_ops->netlink_send(sk, skb);
 934 }
 935
 936 int security_netlink_recv(struct sk_buff *skb, int cap)
 937 {
 938         return security_ops->netlink_recv(skb, cap);
 939 }
 940 EXPORT_SYMBOL(security_netlink_recv);
 941
 942 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
 943 {
 944         return security_ops->secid_to_secctx(secid, secdata, seclen);
 945 }
 946 EXPORT_SYMBOL(security_secid_to_secctx);
 947
 948 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
 949 {
 950         return security_ops->secctx_to_secid(secdata, seclen, secid);
 951 }
 952 EXPORT_SYMBOL(security_secctx_to_secid);
 953
 954 void security_release_secctx(char *secdata, u32 seclen)
 955 {
 956         security_ops->release_secctx(secdata, seclen);
 957 }
 958 EXPORT_SYMBOL(security_release_secctx);
 959
 960 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
 961 {
 962         return security_ops->inode_notifysecctx(inode, ctx, ctxlen);
 963 }
 964 EXPORT_SYMBOL(security_inode_notifysecctx);
 965
 966 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
 967 {
 968         return security_ops->inode_setsecctx(dentry, ctx, ctxlen);
 969 }
 970 EXPORT_SYMBOL(security_inode_setsecctx);
 971
 972 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
 973 {
 974         return security_ops->inode_getsecctx(inode, ctx, ctxlen);
 975 }
 976 EXPORT_SYMBOL(security_inode_getsecctx);
 977
 978 #ifdef CONFIG_SECURITY_NETWORK
 979
 980 int security_unix_stream_connect(struct socket *sock, struct socket *other,
 981                                  struct sock *newsk)
 982 {
 983         return security_ops->unix_stream_connect(sock, other, newsk);
 984 }
 985 EXPORT_SYMBOL(security_unix_stream_connect);
 986
 987 int security_unix_may_send(struct socket *sock,  struct socket *other)
 988 {
 989         return security_ops->unix_may_send(sock, other);
 990 }
 991 EXPORT_SYMBOL(security_unix_may_send);
 992
 993 int security_socket_create(int family, int type, int protocol, int kern)
 994 {
 995         return security_ops->socket_create(family, type, protocol, kern);
 996 }
 997
 998 int security_socket_post_create(struct socket *sock, int family,
 999                                 int type, int protocol, int kern)
1000 {
1001         return security_ops->socket_post_create(sock, family, type,
1002                                                 protocol, kern);
1003 }
1004
1005 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
1006 {
1007         return security_ops->socket_bind(sock, address, addrlen);
1008 }
1009
1010 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
1011 {
1012         return security_ops->socket_connect(sock, address, addrlen);
1013 }
1014
1015 int security_socket_listen(struct socket *sock, int backlog)
1016 {
1017         return security_ops->socket_listen(sock, backlog);
1018 }
1019
1020 int security_socket_accept(struct socket *sock, struct socket *newsock)
1021 {
1022         return security_ops->socket_accept(sock, newsock);
1023 }
1024
1025 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1026 {
1027         return security_ops->socket_sendmsg(sock, msg, size);
1028 }
1029
1030 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1031                             int size, int flags)
1032 {
1033         return security_ops->socket_recvmsg(sock, msg, size, flags);
1034 }
1035
1036 int security_socket_getsockname(struct socket *sock)
1037 {
1038         return security_ops->socket_getsockname(sock);
1039 }
1040
1041 int security_socket_getpeername(struct socket *sock)
1042 {
1043         return security_ops->socket_getpeername(sock);
1044 }
1045
1046 int security_socket_getsockopt(struct socket *sock, int level, int optname)
1047 {
1048         return security_ops->socket_getsockopt(sock, level, optname);
1049 }
1050
1051 int security_socket_setsockopt(struct socket *sock, int level, int optname)
1052 {
1053         return security_ops->socket_setsockopt(sock, level, optname);
1054 }
1055
1056 int security_socket_shutdown(struct socket *sock, int how)
1057 {
1058         return security_ops->socket_shutdown(sock, how);
1059 }
1060
1061 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1062 {
1063         return security_ops->socket_sock_rcv_skb(sk, skb);
1064 }
1065 EXPORT_SYMBOL(security_sock_rcv_skb);
1066
1067 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1068                                       int __user *optlen, unsigned len)
1069 {
1070         return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
1071 }
1072
1073 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1074 {
1075         return security_ops->socket_getpeersec_dgram(sock, skb, secid);
1076 }
1077 EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1078
1079 int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1080 {
1081         return security_ops->sk_alloc_security(sk, family, priority);
1082 }
1083
1084 void security_sk_free(struct sock *sk)
1085 {
1086         security_ops->sk_free_security(sk);
1087 }
1088
1089 void security_sk_clone(const struct sock *sk, struct sock *newsk)
1090 {
1091         security_ops->sk_clone_security(sk, newsk);
1092 }
1093
1094 void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1095 {
1096         security_ops->sk_getsecid(sk, &fl->secid);
1097 }
1098 EXPORT_SYMBOL(security_sk_classify_flow);
1099
1100 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1101 {
1102         security_ops->req_classify_flow(req, fl);
1103 }
1104 EXPORT_SYMBOL(security_req_classify_flow);
1105
1106 void security_sock_graft(struct sock *sk, struct socket *parent)
1107 {
1108         security_ops->sock_graft(sk, parent);
1109 }
1110 EXPORT_SYMBOL(security_sock_graft);
1111
1112 int security_inet_conn_request(struct sock *sk,
1113                         struct sk_buff *skb, struct request_sock *req)
1114 {
1115         return security_ops->inet_conn_request(sk, skb, req);
1116 }
1117 EXPORT_SYMBOL(security_inet_conn_request);
1118
1119 void security_inet_csk_clone(struct sock *newsk,
1120                         const struct request_sock *req)
1121 {
1122         security_ops->inet_csk_clone(newsk, req);
1123 }
1124
1125 void security_inet_conn_established(struct sock *sk,
1126                         struct sk_buff *skb)
1127 {
1128         security_ops->inet_conn_established(sk, skb);
1129 }
1130
1131 int security_secmark_relabel_packet(u32 secid)
1132 {
1133         return security_ops->secmark_relabel_packet(secid);
1134 }
1135 EXPORT_SYMBOL(security_secmark_relabel_packet);
1136
1137 void security_secmark_refcount_inc(void)
1138 {
1139         security_ops->secmark_refcount_inc();
1140 }
1141 EXPORT_SYMBOL(security_secmark_refcount_inc);
1142
1143 void security_secmark_refcount_dec(void)
1144 {
1145         security_ops->secmark_refcount_dec();
1146 }
1147 EXPORT_SYMBOL(security_secmark_refcount_dec);
1148
1149 int security_tun_dev_create(void)
1150 {
1151         return security_ops->tun_dev_create();
1152 }
1153 EXPORT_SYMBOL(security_tun_dev_create);
1154
1155 void security_tun_dev_post_create(struct sock *sk)
1156 {
1157         return security_ops->tun_dev_post_create(sk);
1158 }
1159 EXPORT_SYMBOL(security_tun_dev_post_create);
1160
1161 int security_tun_dev_attach(struct sock *sk)
1162 {
1163         return security_ops->tun_dev_attach(sk);
1164 }
1165 EXPORT_SYMBOL(security_tun_dev_attach);
1166
1167 #endif  /* CONFIG_SECURITY_NETWORK */
1168
1169 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1170
1171 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
1172 {
1173         return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx);
1174 }
1175 EXPORT_SYMBOL(security_xfrm_policy_alloc);
1176
1177 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1178                               struct xfrm_sec_ctx **new_ctxp)
1179 {
1180         return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
1181 }
1182
1183 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1184 {
1185         security_ops->xfrm_policy_free_security(ctx);
1186 }
1187 EXPORT_SYMBOL(security_xfrm_policy_free);
1188
1189 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1190 {
1191         return security_ops->xfrm_policy_delete_security(ctx);
1192 }
1193
1194 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
1195 {
1196         return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
1197 }
1198 EXPORT_SYMBOL(security_xfrm_state_alloc);
1199
1200 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1201                                       struct xfrm_sec_ctx *polsec, u32 secid)
1202 {
1203         if (!polsec)
1204                 return 0;
1205         /*
1206          * We want the context to be taken from secid which is usually
1207          * from the sock.
1208          */
1209         return security_ops->xfrm_state_alloc_security(x, NULL, secid);
1210 }
1211
1212 int security_xfrm_state_delete(struct xfrm_state *x)
1213 {
1214         return security_ops->xfrm_state_delete_security(x);
1215 }
1216 EXPORT_SYMBOL(security_xfrm_state_delete);
1217
1218 void security_xfrm_state_free(struct xfrm_state *x)
1219 {
1220         security_ops->xfrm_state_free_security(x);
1221 }
1222
1223 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1224 {
1225         return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
1226 }
1227
1228 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1229                                        struct xfrm_policy *xp, struct flowi *fl)
1230 {
1231         return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
1232 }
1233
1234 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1235 {
1236         return security_ops->xfrm_decode_session(skb, secid, 1);
1237 }
1238
1239 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1240 {
1241         int rc = security_ops->xfrm_decode_session(skb, &fl->secid, 0);
1242
1243         BUG_ON(rc);
1244 }
1245 EXPORT_SYMBOL(security_skb_classify_flow);
1246
1247 #endif  /* CONFIG_SECURITY_NETWORK_XFRM */
1248
1249 #ifdef CONFIG_KEYS
1250
1251 int security_key_alloc(struct key *key, const struct cred *cred,
1252                        unsigned long flags)
1253 {
1254         return security_ops->key_alloc(key, cred, flags);
1255 }
1256
1257 void security_key_free(struct key *key)
1258 {
1259         security_ops->key_free(key);
1260 }
1261
1262 int security_key_permission(key_ref_t key_ref,
1263                             const struct cred *cred, key_perm_t perm)
1264 {
1265         return security_ops->key_permission(key_ref, cred, perm);
1266 }
1267
1268 int security_key_getsecurity(struct key *key, char **_buffer)
1269 {
1270         return security_ops->key_getsecurity(key, _buffer);
1271 }
1272
1273 #endif  /* CONFIG_KEYS */
1274
1275 #ifdef CONFIG_AUDIT
1276
1277 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1278 {
1279         return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
1280 }
1281
1282 int security_audit_rule_known(struct audit_krule *krule)
1283 {
1284         return security_ops->audit_rule_known(krule);
1285 }
1286
1287 void security_audit_rule_free(void *lsmrule)
1288 {
1289         security_ops->audit_rule_free(lsmrule);
1290 }
1291
1292 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1293                               struct audit_context *actx)
1294 {
1295         return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
1296 }
1297
1298 #endif /* CONFIG_AUDIT */