security/security.c

   1 /*
   2  * Security plug functions
   3  *
   4  * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
   5  * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com>
   6  * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
   7  *
   8  *      This program is free software; you can redistribute it and/or modify
   9  *      it under the terms of the GNU General Public License as published by
  10  *      the Free Software Foundation; either version 2 of the License, or
  11  *      (at your option) any later version.
  12  */
  13
  14 #include <linux/capability.h>
  15 #include <linux/module.h>
  16 #include <linux/init.h>
  17 #include <linux/kernel.h>
  18 #include <linux/security.h>
  19
  20 /* Boot-time LSM user choice */
  21 static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1];
  22
  23 /* things that live in capability.c */
  24 extern struct security_operations default_security_ops;
  25 extern void security_fixup_ops(struct security_operations *ops);
  26
  27 struct security_operations *security_ops;       /* Initialized to NULL */
  28
  29 /* amount of vm to protect from userspace access */
  30 unsigned long mmap_min_addr = CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR;
  31
  32 static inline int verify(struct security_operations *ops)
  33 {
  34         /* verify the security_operations structure exists */
  35         if (!ops)
  36                 return -EINVAL;
  37         security_fixup_ops(ops);
  38         return 0;
  39 }
  40
  41 static void __init do_security_initcalls(void)
  42 {
  43         initcall_t *call;
  44         call = __security_initcall_start;
  45         while (call < __security_initcall_end) {
  46                 (*call) ();
  47                 call++;
  48         }
  49 }
  50
  51 /**
  52  * security_init - initializes the security framework
  53  *
  54  * This should be called early in the kernel initialization sequence.
  55  */
  56 int __init security_init(void)
  57 {
  58         printk(KERN_INFO "Security Framework initialized\n");
  59
  60         security_fixup_ops(&default_security_ops);
  61         security_ops = &default_security_ops;
  62         do_security_initcalls();
  63
  64         return 0;
  65 }
  66
  67 /* Save user chosen LSM */
  68 static int __init choose_lsm(char *str)
  69 {
  70         strncpy(chosen_lsm, str, SECURITY_NAME_MAX);
  71         return 1;
  72 }
  73 __setup("security=", choose_lsm);
  74
  75 /**
  76  * security_module_enable - Load given security module on boot ?
  77  * @ops: a pointer to the struct security_operations that is to be checked.
  78  *
  79  * Each LSM must pass this method before registering its own operations
  80  * to avoid security registration races. This method may also be used
  81  * to check if your LSM is currently loaded during kernel initialization.
  82  *
  83  * Return true if:
  84  *      -The passed LSM is the one chosen by user at boot time,
  85  *      -or user didn't specify a specific LSM and we're the first to ask
  86  *       for registration permission,
  87  *      -or the passed LSM is currently loaded.
  88  * Otherwise, return false.
  89  */
  90 int __init security_module_enable(struct security_operations *ops)
  91 {
  92         if (!*chosen_lsm)
  93                 strncpy(chosen_lsm, ops->name, SECURITY_NAME_MAX);
  94         else if (strncmp(ops->name, chosen_lsm, SECURITY_NAME_MAX))
  95                 return 0;
  96
  97         return 1;
  98 }
  99
 100 /**
 101  * register_security - registers a security framework with the kernel
 102  * @ops: a pointer to the struct security_options that is to be registered
 103  *
 104  * This function allows a security module to register itself with the
 105  * kernel security subsystem.  Some rudimentary checking is done on the @ops
 106  * value passed to this function. You'll need to check first if your LSM
 107  * is allowed to register its @ops by calling security_module_enable(@ops).
 108  *
 109  * If there is already a security module registered with the kernel,
 110  * an error will be returned.  Otherwise %0 is returned on success.
 111  */
 112 int register_security(struct security_operations *ops)
 113 {
 114         if (verify(ops)) {
 115                 printk(KERN_DEBUG "%s could not verify "
 116                        "security_operations structure.\n", __func__);
 117                 return -EINVAL;
 118         }
 119
 120         if (security_ops != &default_security_ops)
 121                 return -EAGAIN;
 122
 123         security_ops = ops;
 124
 125         return 0;
 126 }
 127
 128 /* Security operations */
 129
 130 int security_ptrace_may_access(struct task_struct *child, unsigned int mode)
 131 {
 132         return security_ops->ptrace_may_access(child, mode);
 133 }
 134
 135 int security_ptrace_traceme(struct task_struct *parent)
 136 {
 137         return security_ops->ptrace_traceme(parent);
 138 }
 139
 140 int security_capget(struct task_struct *target,
 141                      kernel_cap_t *effective,
 142                      kernel_cap_t *inheritable,
 143                      kernel_cap_t *permitted)
 144 {
 145         return security_ops->capget(target, effective, inheritable, permitted);
 146 }
 147
 148 int security_capset(struct cred *new, const struct cred *old,
 149                     const kernel_cap_t *effective,
 150                     const kernel_cap_t *inheritable,
 151                     const kernel_cap_t *permitted)
 152 {
 153         return security_ops->capset(new, old,
 154                                     effective, inheritable, permitted);
 155 }
 156
 157 int security_capable(int cap)
 158 {
 159         return security_ops->capable(current, current_cred(), cap,
 160                                      SECURITY_CAP_AUDIT);
 161 }
 162
 163 int security_real_capable(struct task_struct *tsk, int cap)
 164 {
 165         const struct cred *cred;
 166         int ret;
 167
 168         cred = get_task_cred(tsk);
 169         ret = security_ops->capable(tsk, cred, cap, SECURITY_CAP_AUDIT);
 170         put_cred(cred);
 171         return ret;
 172 }
 173
 174 int security_real_capable_noaudit(struct task_struct *tsk, int cap)
 175 {
 176         const struct cred *cred;
 177         int ret;
 178
 179         cred = get_task_cred(tsk);
 180         ret = security_ops->capable(tsk, cred, cap, SECURITY_CAP_NOAUDIT);
 181         put_cred(cred);
 182         return ret;
 183 }
 184
 185 int security_acct(struct file *file)
 186 {
 187         return security_ops->acct(file);
 188 }
 189
 190 int security_sysctl(struct ctl_table *table, int op)
 191 {
 192         return security_ops->sysctl(table, op);
 193 }
 194
 195 int security_quotactl(int cmds, int type, int id, struct super_block *sb)
 196 {
 197         return security_ops->quotactl(cmds, type, id, sb);
 198 }
 199
 200 int security_quota_on(struct dentry *dentry)
 201 {
 202         return security_ops->quota_on(dentry);
 203 }
 204
 205 int security_syslog(int type)
 206 {
 207         return security_ops->syslog(type);
 208 }
 209
 210 int security_settime(struct timespec *ts, struct timezone *tz)
 211 {
 212         return security_ops->settime(ts, tz);
 213 }
 214
 215 int security_vm_enough_memory(long pages)
 216 {
 217         WARN_ON(current->mm == NULL);
 218         return security_ops->vm_enough_memory(current->mm, pages);
 219 }
 220
 221 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
 222 {
 223         WARN_ON(mm == NULL);
 224         return security_ops->vm_enough_memory(mm, pages);
 225 }
 226
 227 int security_vm_enough_memory_kern(long pages)
 228 {
 229         /* If current->mm is a kernel thread then we will pass NULL,
 230            for this specific case that is fine */
 231         return security_ops->vm_enough_memory(current->mm, pages);
 232 }
 233
 234 int security_bprm_set_creds(struct linux_binprm *bprm)
 235 {
 236         return security_ops->bprm_set_creds(bprm);
 237 }
 238
 239 int security_bprm_check(struct linux_binprm *bprm)
 240 {
 241         return security_ops->bprm_check_security(bprm);
 242 }
 243
 244 void security_bprm_committing_creds(struct linux_binprm *bprm)
 245 {
 246         security_ops->bprm_committing_creds(bprm);
 247 }
 248
 249 void security_bprm_committed_creds(struct linux_binprm *bprm)
 250 {
 251         security_ops->bprm_committed_creds(bprm);
 252 }
 253
 254 int security_bprm_secureexec(struct linux_binprm *bprm)
 255 {
 256         return security_ops->bprm_secureexec(bprm);
 257 }
 258
 259 int security_sb_alloc(struct super_block *sb)
 260 {
 261         return security_ops->sb_alloc_security(sb);
 262 }
 263
 264 void security_sb_free(struct super_block *sb)
 265 {
 266         security_ops->sb_free_security(sb);
 267 }
 268
 269 int security_sb_copy_data(char *orig, char *copy)
 270 {
 271         return security_ops->sb_copy_data(orig, copy);
 272 }
 273 EXPORT_SYMBOL(security_sb_copy_data);
 274
 275 int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
 276 {
 277         return security_ops->sb_kern_mount(sb, flags, data);
 278 }
 279
 280 int security_sb_show_options(struct seq_file *m, struct super_block *sb)
 281 {
 282         return security_ops->sb_show_options(m, sb);
 283 }
 284
 285 int security_sb_statfs(struct dentry *dentry)
 286 {
 287         return security_ops->sb_statfs(dentry);
 288 }
 289
 290 int security_sb_mount(char *dev_name, struct path *path,
 291                        char *type, unsigned long flags, void *data)
 292 {
 293         return security_ops->sb_mount(dev_name, path, type, flags, data);
 294 }
 295
 296 int security_sb_check_sb(struct vfsmount *mnt, struct path *path)
 297 {
 298         return security_ops->sb_check_sb(mnt, path);
 299 }
 300
 301 int security_sb_umount(struct vfsmount *mnt, int flags)
 302 {
 303         return security_ops->sb_umount(mnt, flags);
 304 }
 305
 306 void security_sb_umount_close(struct vfsmount *mnt)
 307 {
 308         security_ops->sb_umount_close(mnt);
 309 }
 310
 311 void security_sb_umount_busy(struct vfsmount *mnt)
 312 {
 313         security_ops->sb_umount_busy(mnt);
 314 }
 315
 316 void security_sb_post_remount(struct vfsmount *mnt, unsigned long flags, void *data)
 317 {
 318         security_ops->sb_post_remount(mnt, flags, data);
 319 }
 320
 321 void security_sb_post_addmount(struct vfsmount *mnt, struct path *mountpoint)
 322 {
 323         security_ops->sb_post_addmount(mnt, mountpoint);
 324 }
 325
 326 int security_sb_pivotroot(struct path *old_path, struct path *new_path)
 327 {
 328         return security_ops->sb_pivotroot(old_path, new_path);
 329 }
 330
 331 void security_sb_post_pivotroot(struct path *old_path, struct path *new_path)
 332 {
 333         security_ops->sb_post_pivotroot(old_path, new_path);
 334 }
 335
 336 int security_sb_set_mnt_opts(struct super_block *sb,
 337                                 struct security_mnt_opts *opts)
 338 {
 339         return security_ops->sb_set_mnt_opts(sb, opts);
 340 }
 341 EXPORT_SYMBOL(security_sb_set_mnt_opts);
 342
 343 void security_sb_clone_mnt_opts(const struct super_block *oldsb,
 344                                 struct super_block *newsb)
 345 {
 346         security_ops->sb_clone_mnt_opts(oldsb, newsb);
 347 }
 348 EXPORT_SYMBOL(security_sb_clone_mnt_opts);
 349
 350 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
 351 {
 352         return security_ops->sb_parse_opts_str(options, opts);
 353 }
 354 EXPORT_SYMBOL(security_sb_parse_opts_str);
 355
 356 int security_inode_alloc(struct inode *inode)
 357 {
 358         inode->i_security = NULL;
 359         return security_ops->inode_alloc_security(inode);
 360 }
 361
 362 void security_inode_free(struct inode *inode)
 363 {
 364         security_ops->inode_free_security(inode);
 365 }
 366
 367 int security_inode_init_security(struct inode *inode, struct inode *dir,
 368                                   char **name, void **value, size_t *len)
 369 {
 370         if (unlikely(IS_PRIVATE(inode)))
 371                 return -EOPNOTSUPP;
 372         return security_ops->inode_init_security(inode, dir, name, value, len);
 373 }
 374 EXPORT_SYMBOL(security_inode_init_security);
 375
 376 #ifdef CONFIG_SECURITY_PATH
 377 int security_path_mknod(struct path *path, struct dentry *dentry, int mode,
 378                         unsigned int dev)
 379 {
 380         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 381                 return 0;
 382         return security_ops->path_mknod(path, dentry, mode, dev);
 383 }
 384 EXPORT_SYMBOL(security_path_mknod);
 385
 386 int security_path_mkdir(struct path *path, struct dentry *dentry, int mode)
 387 {
 388         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 389                 return 0;
 390         return security_ops->path_mkdir(path, dentry, mode);
 391 }
 392
 393 int security_path_rmdir(struct path *path, struct dentry *dentry)
 394 {
 395         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 396                 return 0;
 397         return security_ops->path_rmdir(path, dentry);
 398 }
 399
 400 int security_path_unlink(struct path *path, struct dentry *dentry)
 401 {
 402         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 403                 return 0;
 404         return security_ops->path_unlink(path, dentry);
 405 }
 406
 407 int security_path_symlink(struct path *path, struct dentry *dentry,
 408                           const char *old_name)
 409 {
 410         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 411                 return 0;
 412         return security_ops->path_symlink(path, dentry, old_name);
 413 }
 414
 415 int security_path_link(struct dentry *old_dentry, struct path *new_dir,
 416                        struct dentry *new_dentry)
 417 {
 418         if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
 419                 return 0;
 420         return security_ops->path_link(old_dentry, new_dir, new_dentry);
 421 }
 422
 423 int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
 424                          struct path *new_dir, struct dentry *new_dentry)
 425 {
 426         if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
 427                      (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
 428                 return 0;
 429         return security_ops->path_rename(old_dir, old_dentry, new_dir,
 430                                          new_dentry);
 431 }
 432
 433 int security_path_truncate(struct path *path, loff_t length,
 434                            unsigned int time_attrs)
 435 {
 436         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 437                 return 0;
 438         return security_ops->path_truncate(path, length, time_attrs);
 439 }
 440 #endif
 441
 442 int security_inode_create(struct inode *dir, struct dentry *dentry, int mode)
 443 {
 444         if (unlikely(IS_PRIVATE(dir)))
 445                 return 0;
 446         return security_ops->inode_create(dir, dentry, mode);
 447 }
 448 EXPORT_SYMBOL_GPL(security_inode_create);
 449
 450 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
 451                          struct dentry *new_dentry)
 452 {
 453         if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
 454                 return 0;
 455         return security_ops->inode_link(old_dentry, dir, new_dentry);
 456 }
 457
 458 int security_inode_unlink(struct inode *dir, struct dentry *dentry)
 459 {
 460         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 461                 return 0;
 462         return security_ops->inode_unlink(dir, dentry);
 463 }
 464
 465 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
 466                             const char *old_name)
 467 {
 468         if (unlikely(IS_PRIVATE(dir)))
 469                 return 0;
 470         return security_ops->inode_symlink(dir, dentry, old_name);
 471 }
 472
 473 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 474 {
 475         if (unlikely(IS_PRIVATE(dir)))
 476                 return 0;
 477         return security_ops->inode_mkdir(dir, dentry, mode);
 478 }
 479 EXPORT_SYMBOL_GPL(security_inode_mkdir);
 480
 481 int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
 482 {
 483         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 484                 return 0;
 485         return security_ops->inode_rmdir(dir, dentry);
 486 }
 487
 488 int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
 489 {
 490         if (unlikely(IS_PRIVATE(dir)))
 491                 return 0;
 492         return security_ops->inode_mknod(dir, dentry, mode, dev);
 493 }
 494
 495 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
 496                            struct inode *new_dir, struct dentry *new_dentry)
 497 {
 498         if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
 499             (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
 500                 return 0;
 501         return security_ops->inode_rename(old_dir, old_dentry,
 502                                            new_dir, new_dentry);
 503 }
 504
 505 int security_inode_readlink(struct dentry *dentry)
 506 {
 507         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 508                 return 0;
 509         return security_ops->inode_readlink(dentry);
 510 }
 511
 512 int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
 513 {
 514         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 515                 return 0;
 516         return security_ops->inode_follow_link(dentry, nd);
 517 }
 518
 519 int security_inode_permission(struct inode *inode, int mask)
 520 {
 521         if (unlikely(IS_PRIVATE(inode)))
 522                 return 0;
 523         return security_ops->inode_permission(inode, mask);
 524 }
 525
 526 int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
 527 {
 528         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 529                 return 0;
 530         return security_ops->inode_setattr(dentry, attr);
 531 }
 532 EXPORT_SYMBOL_GPL(security_inode_setattr);
 533
 534 int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
 535 {
 536         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 537                 return 0;
 538         return security_ops->inode_getattr(mnt, dentry);
 539 }
 540
 541 void security_inode_delete(struct inode *inode)
 542 {
 543         if (unlikely(IS_PRIVATE(inode)))
 544                 return;
 545         security_ops->inode_delete(inode);
 546 }
 547
 548 int security_inode_setxattr(struct dentry *dentry, const char *name,
 549                             const void *value, size_t size, int flags)
 550 {
 551         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 552                 return 0;
 553         return security_ops->inode_setxattr(dentry, name, value, size, flags);
 554 }
 555
 556 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
 557                                   const void *value, size_t size, int flags)
 558 {
 559         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 560                 return;
 561         security_ops->inode_post_setxattr(dentry, name, value, size, flags);
 562 }
 563
 564 int security_inode_getxattr(struct dentry *dentry, const char *name)
 565 {
 566         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 567                 return 0;
 568         return security_ops->inode_getxattr(dentry, name);
 569 }
 570
 571 int security_inode_listxattr(struct dentry *dentry)
 572 {
 573         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 574                 return 0;
 575         return security_ops->inode_listxattr(dentry);
 576 }
 577
 578 int security_inode_removexattr(struct dentry *dentry, const char *name)
 579 {
 580         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 581                 return 0;
 582         return security_ops->inode_removexattr(dentry, name);
 583 }
 584
 585 int security_inode_need_killpriv(struct dentry *dentry)
 586 {
 587         return security_ops->inode_need_killpriv(dentry);
 588 }
 589
 590 int security_inode_killpriv(struct dentry *dentry)
 591 {
 592         return security_ops->inode_killpriv(dentry);
 593 }
 594
 595 int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
 596 {
 597         if (unlikely(IS_PRIVATE(inode)))
 598                 return 0;
 599         return security_ops->inode_getsecurity(inode, name, buffer, alloc);
 600 }
 601
 602 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
 603 {
 604         if (unlikely(IS_PRIVATE(inode)))
 605                 return 0;
 606         return security_ops->inode_setsecurity(inode, name, value, size, flags);
 607 }
 608
 609 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
 610 {
 611         if (unlikely(IS_PRIVATE(inode)))
 612                 return 0;
 613         return security_ops->inode_listsecurity(inode, buffer, buffer_size);
 614 }
 615
 616 void security_inode_getsecid(const struct inode *inode, u32 *secid)
 617 {
 618         security_ops->inode_getsecid(inode, secid);
 619 }
 620
 621 int security_file_permission(struct file *file, int mask)
 622 {
 623         return security_ops->file_permission(file, mask);
 624 }
 625
 626 int security_file_alloc(struct file *file)
 627 {
 628         return security_ops->file_alloc_security(file);
 629 }
 630
 631 void security_file_free(struct file *file)
 632 {
 633         security_ops->file_free_security(file);
 634 }
 635
 636 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 637 {
 638         return security_ops->file_ioctl(file, cmd, arg);
 639 }
 640
 641 int security_file_mmap(struct file *file, unsigned long reqprot,
 642                         unsigned long prot, unsigned long flags,
 643                         unsigned long addr, unsigned long addr_only)
 644 {
 645         return security_ops->file_mmap(file, reqprot, prot, flags, addr, addr_only);
 646 }
 647
 648 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
 649                             unsigned long prot)
 650 {
 651         return security_ops->file_mprotect(vma, reqprot, prot);
 652 }
 653
 654 int security_file_lock(struct file *file, unsigned int cmd)
 655 {
 656         return security_ops->file_lock(file, cmd);
 657 }
 658
 659 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
 660 {
 661         return security_ops->file_fcntl(file, cmd, arg);
 662 }
 663
 664 int security_file_set_fowner(struct file *file)
 665 {
 666         return security_ops->file_set_fowner(file);
 667 }
 668
 669 int security_file_send_sigiotask(struct task_struct *tsk,
 670                                   struct fown_struct *fown, int sig)
 671 {
 672         return security_ops->file_send_sigiotask(tsk, fown, sig);
 673 }
 674
 675 int security_file_receive(struct file *file)
 676 {
 677         return security_ops->file_receive(file);
 678 }
 679
 680 int security_dentry_open(struct file *file, const struct cred *cred)
 681 {
 682         return security_ops->dentry_open(file, cred);
 683 }
 684
 685 int security_task_create(unsigned long clone_flags)
 686 {
 687         return security_ops->task_create(clone_flags);
 688 }
 689
 690 void security_cred_free(struct cred *cred)
 691 {
 692         security_ops->cred_free(cred);
 693 }
 694
 695 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
 696 {
 697         return security_ops->cred_prepare(new, old, gfp);
 698 }
 699
 700 void security_commit_creds(struct cred *new, const struct cred *old)
 701 {
 702         security_ops->cred_commit(new, old);
 703 }
 704
 705 int security_kernel_act_as(struct cred *new, u32 secid)
 706 {
 707         return security_ops->kernel_act_as(new, secid);
 708 }
 709
 710 int security_kernel_create_files_as(struct cred *new, struct inode *inode)
 711 {
 712         return security_ops->kernel_create_files_as(new, inode);
 713 }
 714
 715 int security_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags)
 716 {
 717         return security_ops->task_setuid(id0, id1, id2, flags);
 718 }
 719
 720 int security_task_fix_setuid(struct cred *new, const struct cred *old,
 721                              int flags)
 722 {
 723         return security_ops->task_fix_setuid(new, old, flags);
 724 }
 725
 726 int security_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags)
 727 {
 728         return security_ops->task_setgid(id0, id1, id2, 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_setgroups(struct group_info *group_info)
 753 {
 754         return security_ops->task_setgroups(group_info);
 755 }
 756
 757 int security_task_setnice(struct task_struct *p, int nice)
 758 {
 759         return security_ops->task_setnice(p, nice);
 760 }
 761
 762 int security_task_setioprio(struct task_struct *p, int ioprio)
 763 {
 764         return security_ops->task_setioprio(p, ioprio);
 765 }
 766
 767 int security_task_getioprio(struct task_struct *p)
 768 {
 769         return security_ops->task_getioprio(p);
 770 }
 771
 772 int security_task_setrlimit(unsigned int resource, struct rlimit *new_rlim)
 773 {
 774         return security_ops->task_setrlimit(resource, new_rlim);
 775 }
 776
 777 int security_task_setscheduler(struct task_struct *p,
 778                                 int policy, struct sched_param *lp)
 779 {
 780         return security_ops->task_setscheduler(p, policy, lp);
 781 }
 782
 783 int security_task_getscheduler(struct task_struct *p)
 784 {
 785         return security_ops->task_getscheduler(p);
 786 }
 787
 788 int security_task_movememory(struct task_struct *p)
 789 {
 790         return security_ops->task_movememory(p);
 791 }
 792
 793 int security_task_kill(struct task_struct *p, struct siginfo *info,
 794                         int sig, u32 secid)
 795 {
 796         return security_ops->task_kill(p, info, sig, secid);
 797 }
 798
 799 int security_task_wait(struct task_struct *p)
 800 {
 801         return security_ops->task_wait(p);
 802 }
 803
 804 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
 805                          unsigned long arg4, unsigned long arg5)
 806 {
 807         return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
 808 }
 809
 810 void security_task_to_inode(struct task_struct *p, struct inode *inode)
 811 {
 812         security_ops->task_to_inode(p, inode);
 813 }
 814
 815 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
 816 {
 817         return security_ops->ipc_permission(ipcp, flag);
 818 }
 819
 820 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
 821 {
 822         security_ops->ipc_getsecid(ipcp, secid);
 823 }
 824
 825 int security_msg_msg_alloc(struct msg_msg *msg)
 826 {
 827         return security_ops->msg_msg_alloc_security(msg);
 828 }
 829
 830 void security_msg_msg_free(struct msg_msg *msg)
 831 {
 832         security_ops->msg_msg_free_security(msg);
 833 }
 834
 835 int security_msg_queue_alloc(struct msg_queue *msq)
 836 {
 837         return security_ops->msg_queue_alloc_security(msq);
 838 }
 839
 840 void security_msg_queue_free(struct msg_queue *msq)
 841 {
 842         security_ops->msg_queue_free_security(msq);
 843 }
 844
 845 int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
 846 {
 847         return security_ops->msg_queue_associate(msq, msqflg);
 848 }
 849
 850 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
 851 {
 852         return security_ops->msg_queue_msgctl(msq, cmd);
 853 }
 854
 855 int security_msg_queue_msgsnd(struct msg_queue *msq,
 856                                struct msg_msg *msg, int msqflg)
 857 {
 858         return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
 859 }
 860
 861 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
 862                                struct task_struct *target, long type, int mode)
 863 {
 864         return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
 865 }
 866
 867 int security_shm_alloc(struct shmid_kernel *shp)
 868 {
 869         return security_ops->shm_alloc_security(shp);
 870 }
 871
 872 void security_shm_free(struct shmid_kernel *shp)
 873 {
 874         security_ops->shm_free_security(shp);
 875 }
 876
 877 int security_shm_associate(struct shmid_kernel *shp, int shmflg)
 878 {
 879         return security_ops->shm_associate(shp, shmflg);
 880 }
 881
 882 int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
 883 {
 884         return security_ops->shm_shmctl(shp, cmd);
 885 }
 886
 887 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
 888 {
 889         return security_ops->shm_shmat(shp, shmaddr, shmflg);
 890 }
 891
 892 int security_sem_alloc(struct sem_array *sma)
 893 {
 894         return security_ops->sem_alloc_security(sma);
 895 }
 896
 897 void security_sem_free(struct sem_array *sma)
 898 {
 899         security_ops->sem_free_security(sma);
 900 }
 901
 902 int security_sem_associate(struct sem_array *sma, int semflg)
 903 {
 904         return security_ops->sem_associate(sma, semflg);
 905 }
 906
 907 int security_sem_semctl(struct sem_array *sma, int cmd)
 908 {
 909         return security_ops->sem_semctl(sma, cmd);
 910 }
 911
 912 int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
 913                         unsigned nsops, int alter)
 914 {
 915         return security_ops->sem_semop(sma, sops, nsops, alter);
 916 }
 917
 918 void security_d_instantiate(struct dentry *dentry, struct inode *inode)
 919 {
 920         if (unlikely(inode && IS_PRIVATE(inode)))
 921                 return;
 922         security_ops->d_instantiate(dentry, inode);
 923 }
 924 EXPORT_SYMBOL(security_d_instantiate);
 925
 926 int security_getprocattr(struct task_struct *p, char *name, char **value)
 927 {
 928         return security_ops->getprocattr(p, name, value);
 929 }
 930
 931 int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
 932 {
 933         return security_ops->setprocattr(p, name, value, size);
 934 }
 935
 936 int security_netlink_send(struct sock *sk, struct sk_buff *skb)
 937 {
 938         return security_ops->netlink_send(sk, skb);
 939 }
 940
 941 int security_netlink_recv(struct sk_buff *skb, int cap)
 942 {
 943         return security_ops->netlink_recv(skb, cap);
 944 }
 945 EXPORT_SYMBOL(security_netlink_recv);
 946
 947 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
 948 {
 949         return security_ops->secid_to_secctx(secid, secdata, seclen);
 950 }
 951 EXPORT_SYMBOL(security_secid_to_secctx);
 952
 953 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
 954 {
 955         return security_ops->secctx_to_secid(secdata, seclen, secid);
 956 }
 957 EXPORT_SYMBOL(security_secctx_to_secid);
 958
 959 void security_release_secctx(char *secdata, u32 seclen)
 960 {
 961         security_ops->release_secctx(secdata, seclen);
 962 }
 963 EXPORT_SYMBOL(security_release_secctx);
 964
 965 #ifdef CONFIG_SECURITY_NETWORK
 966
 967 int security_unix_stream_connect(struct socket *sock, struct socket *other,
 968                                  struct sock *newsk)
 969 {
 970         return security_ops->unix_stream_connect(sock, other, newsk);
 971 }
 972 EXPORT_SYMBOL(security_unix_stream_connect);
 973
 974 int security_unix_may_send(struct socket *sock,  struct socket *other)
 975 {
 976         return security_ops->unix_may_send(sock, other);
 977 }
 978 EXPORT_SYMBOL(security_unix_may_send);
 979
 980 int security_socket_create(int family, int type, int protocol, int kern)
 981 {
 982         return security_ops->socket_create(family, type, protocol, kern);
 983 }
 984
 985 int security_socket_post_create(struct socket *sock, int family,
 986                                 int type, int protocol, int kern)
 987 {
 988         return security_ops->socket_post_create(sock, family, type,
 989                                                 protocol, kern);
 990 }
 991
 992 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
 993 {
 994         return security_ops->socket_bind(sock, address, addrlen);
 995 }
 996
 997 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
 998 {
 999         return security_ops->socket_connect(sock, address, addrlen);
1000 }
1001
1002 int security_socket_listen(struct socket *sock, int backlog)
1003 {
1004         return security_ops->socket_listen(sock, backlog);
1005 }
1006
1007 int security_socket_accept(struct socket *sock, struct socket *newsock)
1008 {
1009         return security_ops->socket_accept(sock, newsock);
1010 }
1011
1012 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1013 {
1014         return security_ops->socket_sendmsg(sock, msg, size);
1015 }
1016
1017 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1018                             int size, int flags)
1019 {
1020         return security_ops->socket_recvmsg(sock, msg, size, flags);
1021 }
1022
1023 int security_socket_getsockname(struct socket *sock)
1024 {
1025         return security_ops->socket_getsockname(sock);
1026 }
1027
1028 int security_socket_getpeername(struct socket *sock)
1029 {
1030         return security_ops->socket_getpeername(sock);
1031 }
1032
1033 int security_socket_getsockopt(struct socket *sock, int level, int optname)
1034 {
1035         return security_ops->socket_getsockopt(sock, level, optname);
1036 }
1037
1038 int security_socket_setsockopt(struct socket *sock, int level, int optname)
1039 {
1040         return security_ops->socket_setsockopt(sock, level, optname);
1041 }
1042
1043 int security_socket_shutdown(struct socket *sock, int how)
1044 {
1045         return security_ops->socket_shutdown(sock, how);
1046 }
1047
1048 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1049 {
1050         return security_ops->socket_sock_rcv_skb(sk, skb);
1051 }
1052 EXPORT_SYMBOL(security_sock_rcv_skb);
1053
1054 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1055                                       int __user *optlen, unsigned len)
1056 {
1057         return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
1058 }
1059
1060 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1061 {
1062         return security_ops->socket_getpeersec_dgram(sock, skb, secid);
1063 }
1064 EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1065
1066 int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1067 {
1068         return security_ops->sk_alloc_security(sk, family, priority);
1069 }
1070
1071 void security_sk_free(struct sock *sk)
1072 {
1073         security_ops->sk_free_security(sk);
1074 }
1075
1076 void security_sk_clone(const struct sock *sk, struct sock *newsk)
1077 {
1078         security_ops->sk_clone_security(sk, newsk);
1079 }
1080
1081 void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1082 {
1083         security_ops->sk_getsecid(sk, &fl->secid);
1084 }
1085 EXPORT_SYMBOL(security_sk_classify_flow);
1086
1087 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1088 {
1089         security_ops->req_classify_flow(req, fl);
1090 }
1091 EXPORT_SYMBOL(security_req_classify_flow);
1092
1093 void security_sock_graft(struct sock *sk, struct socket *parent)
1094 {
1095         security_ops->sock_graft(sk, parent);
1096 }
1097 EXPORT_SYMBOL(security_sock_graft);
1098
1099 int security_inet_conn_request(struct sock *sk,
1100                         struct sk_buff *skb, struct request_sock *req)
1101 {
1102         return security_ops->inet_conn_request(sk, skb, req);
1103 }
1104 EXPORT_SYMBOL(security_inet_conn_request);
1105
1106 void security_inet_csk_clone(struct sock *newsk,
1107                         const struct request_sock *req)
1108 {
1109         security_ops->inet_csk_clone(newsk, req);
1110 }
1111
1112 void security_inet_conn_established(struct sock *sk,
1113                         struct sk_buff *skb)
1114 {
1115         security_ops->inet_conn_established(sk, skb);
1116 }
1117
1118 #endif  /* CONFIG_SECURITY_NETWORK */
1119
1120 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1121
1122 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
1123 {
1124         return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx);
1125 }
1126 EXPORT_SYMBOL(security_xfrm_policy_alloc);
1127
1128 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1129                               struct xfrm_sec_ctx **new_ctxp)
1130 {
1131         return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
1132 }
1133
1134 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1135 {
1136         security_ops->xfrm_policy_free_security(ctx);
1137 }
1138 EXPORT_SYMBOL(security_xfrm_policy_free);
1139
1140 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1141 {
1142         return security_ops->xfrm_policy_delete_security(ctx);
1143 }
1144
1145 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
1146 {
1147         return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
1148 }
1149 EXPORT_SYMBOL(security_xfrm_state_alloc);
1150
1151 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1152                                       struct xfrm_sec_ctx *polsec, u32 secid)
1153 {
1154         if (!polsec)
1155                 return 0;
1156         /*
1157          * We want the context to be taken from secid which is usually
1158          * from the sock.
1159          */
1160         return security_ops->xfrm_state_alloc_security(x, NULL, secid);
1161 }
1162
1163 int security_xfrm_state_delete(struct xfrm_state *x)
1164 {
1165         return security_ops->xfrm_state_delete_security(x);
1166 }
1167 EXPORT_SYMBOL(security_xfrm_state_delete);
1168
1169 void security_xfrm_state_free(struct xfrm_state *x)
1170 {
1171         security_ops->xfrm_state_free_security(x);
1172 }
1173
1174 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1175 {
1176         return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
1177 }
1178
1179 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1180                                        struct xfrm_policy *xp, struct flowi *fl)
1181 {
1182         return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
1183 }
1184
1185 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1186 {
1187         return security_ops->xfrm_decode_session(skb, secid, 1);
1188 }
1189
1190 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1191 {
1192         int rc = security_ops->xfrm_decode_session(skb, &fl->secid, 0);
1193
1194         BUG_ON(rc);
1195 }
1196 EXPORT_SYMBOL(security_skb_classify_flow);
1197
1198 #endif  /* CONFIG_SECURITY_NETWORK_XFRM */
1199
1200 #ifdef CONFIG_KEYS
1201
1202 int security_key_alloc(struct key *key, const struct cred *cred,
1203                        unsigned long flags)
1204 {
1205         return security_ops->key_alloc(key, cred, flags);
1206 }
1207
1208 void security_key_free(struct key *key)
1209 {
1210         security_ops->key_free(key);
1211 }
1212
1213 int security_key_permission(key_ref_t key_ref,
1214                             const struct cred *cred, key_perm_t perm)
1215 {
1216         return security_ops->key_permission(key_ref, cred, perm);
1217 }
1218
1219 int security_key_getsecurity(struct key *key, char **_buffer)
1220 {
1221         return security_ops->key_getsecurity(key, _buffer);
1222 }
1223
1224 #endif  /* CONFIG_KEYS */
1225
1226 #ifdef CONFIG_AUDIT
1227
1228 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1229 {
1230         return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
1231 }
1232
1233 int security_audit_rule_known(struct audit_krule *krule)
1234 {
1235         return security_ops->audit_rule_known(krule);
1236 }
1237
1238 void security_audit_rule_free(void *lsmrule)
1239 {
1240         security_ops->audit_rule_free(lsmrule);
1241 }
1242
1243 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1244                               struct audit_context *actx)
1245 {
1246         return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
1247 }
1248
1249 #endif /* CONFIG_AUDIT */