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/dcache.h>
  16 #include <linux/module.h>
  17 #include <linux/init.h>
  18 #include <linux/kernel.h>
  19 #include <linux/lsm_hooks.h>
  20 #include <linux/integrity.h>
  21 #include <linux/ima.h>
  22 #include <linux/evm.h>
  23 #include <linux/fsnotify.h>
  24 #include <linux/mman.h>
  25 #include <linux/mount.h>
  26 #include <linux/personality.h>
  27 #include <linux/backing-dev.h>
  28 #include <net/flow.h>
  29
  30 #define MAX_LSM_EVM_XATTR       2
  31
  32 /* Boot-time LSM user choice */
  33 static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
  34         CONFIG_DEFAULT_SECURITY;
  35
  36 static struct security_operations *security_ops;
  37 static struct security_operations default_security_ops = {
  38         .name   = "default",
  39 };
  40
  41 static inline int __init verify(struct security_operations *ops)
  42 {
  43         /* verify the security_operations structure exists */
  44         if (!ops)
  45                 return -EINVAL;
  46         security_fixup_ops(ops);
  47         return 0;
  48 }
  49
  50 static void __init do_security_initcalls(void)
  51 {
  52         initcall_t *call;
  53         call = __security_initcall_start;
  54         while (call < __security_initcall_end) {
  55                 (*call) ();
  56                 call++;
  57         }
  58 }
  59
  60 /**
  61  * security_init - initializes the security framework
  62  *
  63  * This should be called early in the kernel initialization sequence.
  64  */
  65 int __init security_init(void)
  66 {
  67         printk(KERN_INFO "Security Framework initialized\n");
  68
  69         security_fixup_ops(&default_security_ops);
  70         security_ops = &default_security_ops;
  71         do_security_initcalls();
  72
  73         return 0;
  74 }
  75
  76 void reset_security_ops(void)
  77 {
  78         security_ops = &default_security_ops;
  79 }
  80
  81 /* Save user chosen LSM */
  82 static int __init choose_lsm(char *str)
  83 {
  84         strncpy(chosen_lsm, str, SECURITY_NAME_MAX);
  85         return 1;
  86 }
  87 __setup("security=", choose_lsm);
  88
  89 /**
  90  * security_module_enable - Load given security module on boot ?
  91  * @ops: a pointer to the struct security_operations that is to be checked.
  92  *
  93  * Each LSM must pass this method before registering its own operations
  94  * to avoid security registration races. This method may also be used
  95  * to check if your LSM is currently loaded during kernel initialization.
  96  *
  97  * Return true if:
  98  *      -The passed LSM is the one chosen by user at boot time,
  99  *      -or the passed LSM is configured as the default and the user did not
 100  *       choose an alternate LSM at boot time.
 101  * Otherwise, return false.
 102  */
 103 int __init security_module_enable(struct security_operations *ops)
 104 {
 105         return !strcmp(ops->name, chosen_lsm);
 106 }
 107
 108 /**
 109  * register_security - registers a security framework with the kernel
 110  * @ops: a pointer to the struct security_options that is to be registered
 111  *
 112  * This function allows a security module to register itself with the
 113  * kernel security subsystem.  Some rudimentary checking is done on the @ops
 114  * value passed to this function. You'll need to check first if your LSM
 115  * is allowed to register its @ops by calling security_module_enable(@ops).
 116  *
 117  * If there is already a security module registered with the kernel,
 118  * an error will be returned.  Otherwise %0 is returned on success.
 119  */
 120 int __init register_security(struct security_operations *ops)
 121 {
 122         if (verify(ops)) {
 123                 printk(KERN_DEBUG "%s could not verify "
 124                        "security_operations structure.\n", __func__);
 125                 return -EINVAL;
 126         }
 127
 128         if (security_ops != &default_security_ops)
 129                 return -EAGAIN;
 130
 131         security_ops = ops;
 132
 133         return 0;
 134 }
 135
 136 /*
 137  * Hook operation macros.
 138  *
 139  * call_void_hook:
 140  *      This is a hook that does not return a value.
 141  *
 142  * call_int_hook:
 143  *      This is a hook that returns a value.
 144  */
 145
 146 #define call_void_hook(FUNC, ...)       security_ops->FUNC(__VA_ARGS__)
 147 #define call_int_hook(FUNC, IRC, ...)   security_ops->FUNC(__VA_ARGS__)
 148
 149 /* Security operations */
 150
 151 int security_binder_set_context_mgr(struct task_struct *mgr)
 152 {
 153         return call_int_hook(binder_set_context_mgr, 0, mgr);
 154 }
 155
 156 int security_binder_transaction(struct task_struct *from,
 157                                 struct task_struct *to)
 158 {
 159         return call_int_hook(binder_transaction, 0, from, to);
 160 }
 161
 162 int security_binder_transfer_binder(struct task_struct *from,
 163                                     struct task_struct *to)
 164 {
 165         return call_int_hook(binder_transfer_binder, 0, from, to);
 166 }
 167
 168 int security_binder_transfer_file(struct task_struct *from,
 169                                   struct task_struct *to, struct file *file)
 170 {
 171         return call_int_hook(binder_transfer_file, 0, from, to, file);
 172 }
 173
 174 int security_ptrace_access_check(struct task_struct *child, unsigned int mode)
 175 {
 176 #ifdef CONFIG_SECURITY_YAMA_STACKED
 177         int rc;
 178         rc = yama_ptrace_access_check(child, mode);
 179         if (rc)
 180                 return rc;
 181 #endif
 182         return call_int_hook(ptrace_access_check, 0, child, mode);
 183 }
 184
 185 int security_ptrace_traceme(struct task_struct *parent)
 186 {
 187 #ifdef CONFIG_SECURITY_YAMA_STACKED
 188         int rc;
 189         rc = yama_ptrace_traceme(parent);
 190         if (rc)
 191                 return rc;
 192 #endif
 193         return call_int_hook(ptrace_traceme, 0, parent);
 194 }
 195
 196 int security_capget(struct task_struct *target,
 197                      kernel_cap_t *effective,
 198                      kernel_cap_t *inheritable,
 199                      kernel_cap_t *permitted)
 200 {
 201         return call_int_hook(capget, 0, target,
 202                                 effective, inheritable, permitted);
 203 }
 204
 205 int security_capset(struct cred *new, const struct cred *old,
 206                     const kernel_cap_t *effective,
 207                     const kernel_cap_t *inheritable,
 208                     const kernel_cap_t *permitted)
 209 {
 210         return call_int_hook(capset, 0, new, old,
 211                                 effective, inheritable, permitted);
 212 }
 213
 214 int security_capable(const struct cred *cred, struct user_namespace *ns,
 215                      int cap)
 216 {
 217         return call_int_hook(capable, 0, cred, ns, cap, SECURITY_CAP_AUDIT);
 218 }
 219
 220 int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
 221                              int cap)
 222 {
 223         return call_int_hook(capable, 0, cred, ns, cap, SECURITY_CAP_NOAUDIT);
 224 }
 225
 226 int security_quotactl(int cmds, int type, int id, struct super_block *sb)
 227 {
 228         return call_int_hook(quotactl, 0, cmds, type, id, sb);
 229 }
 230
 231 int security_quota_on(struct dentry *dentry)
 232 {
 233         return call_int_hook(quota_on, 0, dentry);
 234 }
 235
 236 int security_syslog(int type)
 237 {
 238         return call_int_hook(syslog, 0, type);
 239 }
 240
 241 int security_settime(const struct timespec *ts, const struct timezone *tz)
 242 {
 243         return call_int_hook(settime, 0, ts, tz);
 244 }
 245
 246 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
 247 {
 248         return call_int_hook(vm_enough_memory, 0, mm, pages);
 249 }
 250
 251 int security_bprm_set_creds(struct linux_binprm *bprm)
 252 {
 253         return call_int_hook(bprm_set_creds, 0, bprm);
 254 }
 255
 256 int security_bprm_check(struct linux_binprm *bprm)
 257 {
 258         int ret;
 259
 260         ret = call_int_hook(bprm_check_security, 0, bprm);
 261         if (ret)
 262                 return ret;
 263         return ima_bprm_check(bprm);
 264 }
 265
 266 void security_bprm_committing_creds(struct linux_binprm *bprm)
 267 {
 268         call_void_hook(bprm_committing_creds, bprm);
 269 }
 270
 271 void security_bprm_committed_creds(struct linux_binprm *bprm)
 272 {
 273         call_void_hook(bprm_committed_creds, bprm);
 274 }
 275
 276 int security_bprm_secureexec(struct linux_binprm *bprm)
 277 {
 278         return call_int_hook(bprm_secureexec, 0, bprm);
 279 }
 280
 281 int security_sb_alloc(struct super_block *sb)
 282 {
 283         return call_int_hook(sb_alloc_security, 0, sb);
 284 }
 285
 286 void security_sb_free(struct super_block *sb)
 287 {
 288         call_void_hook(sb_free_security, sb);
 289 }
 290
 291 int security_sb_copy_data(char *orig, char *copy)
 292 {
 293         return call_int_hook(sb_copy_data, 0, orig, copy);
 294 }
 295 EXPORT_SYMBOL(security_sb_copy_data);
 296
 297 int security_sb_remount(struct super_block *sb, void *data)
 298 {
 299         return call_int_hook(sb_remount, 0, sb, data);
 300 }
 301
 302 int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
 303 {
 304         return call_int_hook(sb_kern_mount, 0, sb, flags, data);
 305 }
 306
 307 int security_sb_show_options(struct seq_file *m, struct super_block *sb)
 308 {
 309         return call_int_hook(sb_show_options, 0, m, sb);
 310 }
 311
 312 int security_sb_statfs(struct dentry *dentry)
 313 {
 314         return call_int_hook(sb_statfs, 0, dentry);
 315 }
 316
 317 int security_sb_mount(const char *dev_name, struct path *path,
 318                        const char *type, unsigned long flags, void *data)
 319 {
 320         return call_int_hook(sb_mount, 0, dev_name, path, type, flags, data);
 321 }
 322
 323 int security_sb_umount(struct vfsmount *mnt, int flags)
 324 {
 325         return call_int_hook(sb_umount, 0, mnt, flags);
 326 }
 327
 328 int security_sb_pivotroot(struct path *old_path, struct path *new_path)
 329 {
 330         return call_int_hook(sb_pivotroot, 0, old_path, new_path);
 331 }
 332
 333 int security_sb_set_mnt_opts(struct super_block *sb,
 334                                 struct security_mnt_opts *opts,
 335                                 unsigned long kern_flags,
 336                                 unsigned long *set_kern_flags)
 337 {
 338         return call_int_hook(sb_set_mnt_opts, 0, sb, opts, kern_flags,
 339                                                 set_kern_flags);
 340 }
 341 EXPORT_SYMBOL(security_sb_set_mnt_opts);
 342
 343 int security_sb_clone_mnt_opts(const struct super_block *oldsb,
 344                                 struct super_block *newsb)
 345 {
 346         return call_int_hook(sb_clone_mnt_opts, 0, 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 call_int_hook(sb_parse_opts_str, 0, 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 call_int_hook(inode_alloc_security, 0, inode);
 360 }
 361
 362 void security_inode_free(struct inode *inode)
 363 {
 364         integrity_inode_free(inode);
 365         call_void_hook(inode_free_security, inode);
 366 }
 367
 368 int security_dentry_init_security(struct dentry *dentry, int mode,
 369                                         struct qstr *name, void **ctx,
 370                                         u32 *ctxlen)
 371 {
 372         return call_int_hook(dentry_init_security, 0, dentry, mode, name,
 373                                                         ctx, ctxlen);
 374 }
 375 EXPORT_SYMBOL(security_dentry_init_security);
 376
 377 int security_inode_init_security(struct inode *inode, struct inode *dir,
 378                                  const struct qstr *qstr,
 379                                  const initxattrs initxattrs, void *fs_data)
 380 {
 381         struct xattr new_xattrs[MAX_LSM_EVM_XATTR + 1];
 382         struct xattr *lsm_xattr, *evm_xattr, *xattr;
 383         int ret;
 384
 385         if (unlikely(IS_PRIVATE(inode)))
 386                 return 0;
 387
 388         if (!initxattrs)
 389                 return call_int_hook(inode_init_security, 0, inode, dir, qstr,
 390                                                          NULL, NULL, NULL);
 391         memset(new_xattrs, 0, sizeof(new_xattrs));
 392         lsm_xattr = new_xattrs;
 393         ret = call_int_hook(inode_init_security, 0, inode, dir, qstr,
 394                                                 &lsm_xattr->name,
 395                                                 &lsm_xattr->value,
 396                                                 &lsm_xattr->value_len);
 397         if (ret)
 398                 goto out;
 399
 400         evm_xattr = lsm_xattr + 1;
 401         ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr);
 402         if (ret)
 403                 goto out;
 404         ret = initxattrs(inode, new_xattrs, fs_data);
 405 out:
 406         for (xattr = new_xattrs; xattr->value != NULL; xattr++)
 407                 kfree(xattr->value);
 408         return (ret == -EOPNOTSUPP) ? 0 : ret;
 409 }
 410 EXPORT_SYMBOL(security_inode_init_security);
 411
 412 int security_old_inode_init_security(struct inode *inode, struct inode *dir,
 413                                      const struct qstr *qstr, const char **name,
 414                                      void **value, size_t *len)
 415 {
 416         if (unlikely(IS_PRIVATE(inode)))
 417                 return -EOPNOTSUPP;
 418         return call_int_hook(inode_init_security, 0, inode, dir, qstr,
 419                                 name, value, len);
 420 }
 421 EXPORT_SYMBOL(security_old_inode_init_security);
 422
 423 #ifdef CONFIG_SECURITY_PATH
 424 int security_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
 425                         unsigned int dev)
 426 {
 427         if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
 428                 return 0;
 429         return call_int_hook(path_mknod, 0, dir, dentry, mode, dev);
 430 }
 431 EXPORT_SYMBOL(security_path_mknod);
 432
 433 int security_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
 434 {
 435         if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
 436                 return 0;
 437         return call_int_hook(path_mkdir, 0, dir, dentry, mode);
 438 }
 439 EXPORT_SYMBOL(security_path_mkdir);
 440
 441 int security_path_rmdir(struct path *dir, struct dentry *dentry)
 442 {
 443         if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
 444                 return 0;
 445         return call_int_hook(path_rmdir, 0, dir, dentry);
 446 }
 447
 448 int security_path_unlink(struct path *dir, struct dentry *dentry)
 449 {
 450         if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
 451                 return 0;
 452         return call_int_hook(path_unlink, 0, dir, dentry);
 453 }
 454 EXPORT_SYMBOL(security_path_unlink);
 455
 456 int security_path_symlink(struct path *dir, struct dentry *dentry,
 457                           const char *old_name)
 458 {
 459         if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
 460                 return 0;
 461         return call_int_hook(path_symlink, 0, dir, dentry, old_name);
 462 }
 463
 464 int security_path_link(struct dentry *old_dentry, struct path *new_dir,
 465                        struct dentry *new_dentry)
 466 {
 467         if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry))))
 468                 return 0;
 469         return call_int_hook(path_link, 0, old_dentry, new_dir, new_dentry);
 470 }
 471
 472 int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
 473                          struct path *new_dir, struct dentry *new_dentry,
 474                          unsigned int flags)
 475 {
 476         if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) ||
 477                      (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry)))))
 478                 return 0;
 479
 480         if (flags & RENAME_EXCHANGE) {
 481                 int err = call_int_hook(path_rename, 0, new_dir, new_dentry,
 482                                         old_dir, old_dentry);
 483                 if (err)
 484                         return err;
 485         }
 486
 487         return call_int_hook(path_rename, 0, old_dir, old_dentry, new_dir,
 488                                 new_dentry);
 489 }
 490 EXPORT_SYMBOL(security_path_rename);
 491
 492 int security_path_truncate(struct path *path)
 493 {
 494         if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
 495                 return 0;
 496         return call_int_hook(path_truncate, 0, path);
 497 }
 498
 499 int security_path_chmod(struct path *path, umode_t mode)
 500 {
 501         if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
 502                 return 0;
 503         return call_int_hook(path_chmod, 0, path, mode);
 504 }
 505
 506 int security_path_chown(struct path *path, kuid_t uid, kgid_t gid)
 507 {
 508         if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
 509                 return 0;
 510         return call_int_hook(path_chown, 0, path, uid, gid);
 511 }
 512
 513 int security_path_chroot(struct path *path)
 514 {
 515         return call_int_hook(path_chroot, 0, path);
 516 }
 517 #endif
 518
 519 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode)
 520 {
 521         if (unlikely(IS_PRIVATE(dir)))
 522                 return 0;
 523         return call_int_hook(inode_create, 0, dir, dentry, mode);
 524 }
 525 EXPORT_SYMBOL_GPL(security_inode_create);
 526
 527 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
 528                          struct dentry *new_dentry)
 529 {
 530         if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry))))
 531                 return 0;
 532         return call_int_hook(inode_link, 0, old_dentry, dir, new_dentry);
 533 }
 534
 535 int security_inode_unlink(struct inode *dir, struct dentry *dentry)
 536 {
 537         if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 538                 return 0;
 539         return call_int_hook(inode_unlink, 0, dir, dentry);
 540 }
 541
 542 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
 543                             const char *old_name)
 544 {
 545         if (unlikely(IS_PRIVATE(dir)))
 546                 return 0;
 547         return call_int_hook(inode_symlink, 0, dir, dentry, old_name);
 548 }
 549
 550 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 551 {
 552         if (unlikely(IS_PRIVATE(dir)))
 553                 return 0;
 554         return call_int_hook(inode_mkdir, 0, dir, dentry, mode);
 555 }
 556 EXPORT_SYMBOL_GPL(security_inode_mkdir);
 557
 558 int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
 559 {
 560         if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 561                 return 0;
 562         return call_int_hook(inode_rmdir, 0, dir, dentry);
 563 }
 564
 565 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
 566 {
 567         if (unlikely(IS_PRIVATE(dir)))
 568                 return 0;
 569         return call_int_hook(inode_mknod, 0, dir, dentry, mode, dev);
 570 }
 571
 572 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
 573                            struct inode *new_dir, struct dentry *new_dentry,
 574                            unsigned int flags)
 575 {
 576         if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) ||
 577             (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry)))))
 578                 return 0;
 579
 580         if (flags & RENAME_EXCHANGE) {
 581                 int err = call_int_hook(inode_rename, 0, new_dir, new_dentry,
 582                                                      old_dir, old_dentry);
 583                 if (err)
 584                         return err;
 585         }
 586
 587         return call_int_hook(inode_rename, 0, old_dir, old_dentry,
 588                                            new_dir, new_dentry);
 589 }
 590
 591 int security_inode_readlink(struct dentry *dentry)
 592 {
 593         if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 594                 return 0;
 595         return call_int_hook(inode_readlink, 0, dentry);
 596 }
 597
 598 int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
 599 {
 600         if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 601                 return 0;
 602         return call_int_hook(inode_follow_link, 0, dentry, nd);
 603 }
 604
 605 int security_inode_permission(struct inode *inode, int mask)
 606 {
 607         if (unlikely(IS_PRIVATE(inode)))
 608                 return 0;
 609         return call_int_hook(inode_permission, 0, inode, mask);
 610 }
 611
 612 int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
 613 {
 614         int ret;
 615
 616         if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 617                 return 0;
 618         ret = call_int_hook(inode_setattr, 0, dentry, attr);
 619         if (ret)
 620                 return ret;
 621         return evm_inode_setattr(dentry, attr);
 622 }
 623 EXPORT_SYMBOL_GPL(security_inode_setattr);
 624
 625 int security_inode_getattr(const struct path *path)
 626 {
 627         if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
 628                 return 0;
 629         return call_int_hook(inode_getattr, 0, path);
 630 }
 631
 632 int security_inode_setxattr(struct dentry *dentry, const char *name,
 633                             const void *value, size_t size, int flags)
 634 {
 635         int ret;
 636
 637         if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 638                 return 0;
 639         ret = call_int_hook(inode_setxattr, 0, dentry, name, value, size,
 640                                 flags);
 641         if (ret)
 642                 return ret;
 643         ret = ima_inode_setxattr(dentry, name, value, size);
 644         if (ret)
 645                 return ret;
 646         return evm_inode_setxattr(dentry, name, value, size);
 647 }
 648
 649 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
 650                                   const void *value, size_t size, int flags)
 651 {
 652         if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 653                 return;
 654         call_void_hook(inode_post_setxattr, dentry, name, value, size, flags);
 655         evm_inode_post_setxattr(dentry, name, value, size);
 656 }
 657
 658 int security_inode_getxattr(struct dentry *dentry, const char *name)
 659 {
 660         if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 661                 return 0;
 662         return call_int_hook(inode_getxattr, 0, dentry, name);
 663 }
 664
 665 int security_inode_listxattr(struct dentry *dentry)
 666 {
 667         if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 668                 return 0;
 669         return call_int_hook(inode_listxattr, 0, dentry);
 670 }
 671
 672 int security_inode_removexattr(struct dentry *dentry, const char *name)
 673 {
 674         int ret;
 675
 676         if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 677                 return 0;
 678         ret = call_int_hook(inode_removexattr, 0, dentry, name);
 679         if (ret)
 680                 return ret;
 681         ret = ima_inode_removexattr(dentry, name);
 682         if (ret)
 683                 return ret;
 684         return evm_inode_removexattr(dentry, name);
 685 }
 686
 687 int security_inode_need_killpriv(struct dentry *dentry)
 688 {
 689         return call_int_hook(inode_need_killpriv, 0, dentry);
 690 }
 691
 692 int security_inode_killpriv(struct dentry *dentry)
 693 {
 694         return call_int_hook(inode_killpriv, 0, dentry);
 695 }
 696
 697 int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
 698 {
 699         if (unlikely(IS_PRIVATE(inode)))
 700                 return -EOPNOTSUPP;
 701         return call_int_hook(inode_getsecurity, 0, inode, name, buffer, alloc);
 702 }
 703
 704 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
 705 {
 706         if (unlikely(IS_PRIVATE(inode)))
 707                 return -EOPNOTSUPP;
 708         return call_int_hook(inode_setsecurity, 0, inode, name, value, size,
 709                                 flags);
 710 }
 711
 712 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
 713 {
 714         if (unlikely(IS_PRIVATE(inode)))
 715                 return 0;
 716         return call_int_hook(inode_listsecurity, 0, inode, buffer, buffer_size);
 717 }
 718 EXPORT_SYMBOL(security_inode_listsecurity);
 719
 720 void security_inode_getsecid(const struct inode *inode, u32 *secid)
 721 {
 722         call_void_hook(inode_getsecid, inode, secid);
 723 }
 724
 725 int security_file_permission(struct file *file, int mask)
 726 {
 727         int ret;
 728
 729         ret = call_int_hook(file_permission, 0, file, mask);
 730         if (ret)
 731                 return ret;
 732
 733         return fsnotify_perm(file, mask);
 734 }
 735
 736 int security_file_alloc(struct file *file)
 737 {
 738         return call_int_hook(file_alloc_security, 0, file);
 739 }
 740
 741 void security_file_free(struct file *file)
 742 {
 743         call_void_hook(file_free_security, file);
 744 }
 745
 746 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 747 {
 748         return call_int_hook(file_ioctl, 0, file, cmd, arg);
 749 }
 750
 751 static inline unsigned long mmap_prot(struct file *file, unsigned long prot)
 752 {
 753         /*
 754          * Does we have PROT_READ and does the application expect
 755          * it to imply PROT_EXEC?  If not, nothing to talk about...
 756          */
 757         if ((prot & (PROT_READ | PROT_EXEC)) != PROT_READ)
 758                 return prot;
 759         if (!(current->personality & READ_IMPLIES_EXEC))
 760                 return prot;
 761         /*
 762          * if that's an anonymous mapping, let it.
 763          */
 764         if (!file)
 765                 return prot | PROT_EXEC;
 766         /*
 767          * ditto if it's not on noexec mount, except that on !MMU we need
 768          * NOMMU_MAP_EXEC (== VM_MAYEXEC) in this case
 769          */
 770         if (!(file->f_path.mnt->mnt_flags & MNT_NOEXEC)) {
 771 #ifndef CONFIG_MMU
 772                 if (file->f_op->mmap_capabilities) {
 773                         unsigned caps = file->f_op->mmap_capabilities(file);
 774                         if (!(caps & NOMMU_MAP_EXEC))
 775                                 return prot;
 776                 }
 777 #endif
 778                 return prot | PROT_EXEC;
 779         }
 780         /* anything on noexec mount won't get PROT_EXEC */
 781         return prot;
 782 }
 783
 784 int security_mmap_file(struct file *file, unsigned long prot,
 785                         unsigned long flags)
 786 {
 787         int ret;
 788         ret = call_int_hook(mmap_file, 0, file, prot,
 789                                         mmap_prot(file, prot), flags);
 790         if (ret)
 791                 return ret;
 792         return ima_file_mmap(file, prot);
 793 }
 794
 795 int security_mmap_addr(unsigned long addr)
 796 {
 797         return call_int_hook(mmap_addr, 0, addr);
 798 }
 799
 800 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
 801                             unsigned long prot)
 802 {
 803         return call_int_hook(file_mprotect, 0, vma, reqprot, prot);
 804 }
 805
 806 int security_file_lock(struct file *file, unsigned int cmd)
 807 {
 808         return call_int_hook(file_lock, 0, file, cmd);
 809 }
 810
 811 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
 812 {
 813         return call_int_hook(file_fcntl, 0, file, cmd, arg);
 814 }
 815
 816 void security_file_set_fowner(struct file *file)
 817 {
 818         call_void_hook(file_set_fowner, file);
 819 }
 820
 821 int security_file_send_sigiotask(struct task_struct *tsk,
 822                                   struct fown_struct *fown, int sig)
 823 {
 824         return call_int_hook(file_send_sigiotask, 0, tsk, fown, sig);
 825 }
 826
 827 int security_file_receive(struct file *file)
 828 {
 829         return call_int_hook(file_receive, 0, file);
 830 }
 831
 832 int security_file_open(struct file *file, const struct cred *cred)
 833 {
 834         int ret;
 835
 836         ret = call_int_hook(file_open, 0, file, cred);
 837         if (ret)
 838                 return ret;
 839
 840         return fsnotify_perm(file, MAY_OPEN);
 841 }
 842
 843 int security_task_create(unsigned long clone_flags)
 844 {
 845         return call_int_hook(task_create, 0, clone_flags);
 846 }
 847
 848 void security_task_free(struct task_struct *task)
 849 {
 850 #ifdef CONFIG_SECURITY_YAMA_STACKED
 851         yama_task_free(task);
 852 #endif
 853         call_void_hook(task_free, task);
 854 }
 855
 856 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
 857 {
 858         return call_int_hook(cred_alloc_blank, 0, cred, gfp);
 859 }
 860
 861 void security_cred_free(struct cred *cred)
 862 {
 863         call_void_hook(cred_free, cred);
 864 }
 865
 866 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
 867 {
 868         return call_int_hook(cred_prepare, 0, new, old, gfp);
 869 }
 870
 871 void security_transfer_creds(struct cred *new, const struct cred *old)
 872 {
 873         call_void_hook(cred_transfer, new, old);
 874 }
 875
 876 int security_kernel_act_as(struct cred *new, u32 secid)
 877 {
 878         return call_int_hook(kernel_act_as, 0, new, secid);
 879 }
 880
 881 int security_kernel_create_files_as(struct cred *new, struct inode *inode)
 882 {
 883         return call_int_hook(kernel_create_files_as, 0, new, inode);
 884 }
 885
 886 int security_kernel_fw_from_file(struct file *file, char *buf, size_t size)
 887 {
 888         int ret;
 889
 890         ret = call_int_hook(kernel_fw_from_file, 0, file, buf, size);
 891         if (ret)
 892                 return ret;
 893         return ima_fw_from_file(file, buf, size);
 894 }
 895 EXPORT_SYMBOL_GPL(security_kernel_fw_from_file);
 896
 897 int security_kernel_module_request(char *kmod_name)
 898 {
 899         return call_int_hook(kernel_module_request, 0, kmod_name);
 900 }
 901
 902 int security_kernel_module_from_file(struct file *file)
 903 {
 904         int ret;
 905
 906         ret = call_int_hook(kernel_module_from_file, 0, file);
 907         if (ret)
 908                 return ret;
 909         return ima_module_check(file);
 910 }
 911
 912 int security_task_fix_setuid(struct cred *new, const struct cred *old,
 913                              int flags)
 914 {
 915         return call_int_hook(task_fix_setuid, 0, new, old, flags);
 916 }
 917
 918 int security_task_setpgid(struct task_struct *p, pid_t pgid)
 919 {
 920         return call_int_hook(task_setpgid, 0, p, pgid);
 921 }
 922
 923 int security_task_getpgid(struct task_struct *p)
 924 {
 925         return call_int_hook(task_getpgid, 0, p);
 926 }
 927
 928 int security_task_getsid(struct task_struct *p)
 929 {
 930         return call_int_hook(task_getsid, 0, p);
 931 }
 932
 933 void security_task_getsecid(struct task_struct *p, u32 *secid)
 934 {
 935         call_void_hook(task_getsecid, p, secid);
 936 }
 937 EXPORT_SYMBOL(security_task_getsecid);
 938
 939 int security_task_setnice(struct task_struct *p, int nice)
 940 {
 941         return call_int_hook(task_setnice, 0, p, nice);
 942 }
 943
 944 int security_task_setioprio(struct task_struct *p, int ioprio)
 945 {
 946         return call_int_hook(task_setioprio, 0, p, ioprio);
 947 }
 948
 949 int security_task_getioprio(struct task_struct *p)
 950 {
 951         return call_int_hook(task_getioprio, 0, p);
 952 }
 953
 954 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
 955                 struct rlimit *new_rlim)
 956 {
 957         return call_int_hook(task_setrlimit, 0, p, resource, new_rlim);
 958 }
 959
 960 int security_task_setscheduler(struct task_struct *p)
 961 {
 962         return call_int_hook(task_setscheduler, 0, p);
 963 }
 964
 965 int security_task_getscheduler(struct task_struct *p)
 966 {
 967         return call_int_hook(task_getscheduler, 0, p);
 968 }
 969
 970 int security_task_movememory(struct task_struct *p)
 971 {
 972         return call_int_hook(task_movememory, 0, p);
 973 }
 974
 975 int security_task_kill(struct task_struct *p, struct siginfo *info,
 976                         int sig, u32 secid)
 977 {
 978         return call_int_hook(task_kill, 0, p, info, sig, secid);
 979 }
 980
 981 int security_task_wait(struct task_struct *p)
 982 {
 983         return call_int_hook(task_wait, 0, p);
 984 }
 985
 986 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
 987                          unsigned long arg4, unsigned long arg5)
 988 {
 989 #ifdef CONFIG_SECURITY_YAMA_STACKED
 990         int rc;
 991         rc = yama_task_prctl(option, arg2, arg3, arg4, arg5);
 992         if (rc != -ENOSYS)
 993                 return rc;
 994 #endif
 995         return call_int_hook(task_prctl, 0, option, arg2, arg3, arg4, arg5);
 996 }
 997
 998 void security_task_to_inode(struct task_struct *p, struct inode *inode)
 999 {
1000         call_void_hook(task_to_inode, p, inode);
1001 }
1002
1003 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
1004 {
1005         return call_int_hook(ipc_permission, 0, ipcp, flag);
1006 }
1007
1008 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
1009 {
1010         call_void_hook(ipc_getsecid, ipcp, secid);
1011 }
1012
1013 int security_msg_msg_alloc(struct msg_msg *msg)
1014 {
1015         return call_int_hook(msg_msg_alloc_security, 0, msg);
1016 }
1017
1018 void security_msg_msg_free(struct msg_msg *msg)
1019 {
1020         call_void_hook(msg_msg_free_security, msg);
1021 }
1022
1023 int security_msg_queue_alloc(struct msg_queue *msq)
1024 {
1025         return call_int_hook(msg_queue_alloc_security, 0, msq);
1026 }
1027
1028 void security_msg_queue_free(struct msg_queue *msq)
1029 {
1030         call_void_hook(msg_queue_free_security, msq);
1031 }
1032
1033 int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
1034 {
1035         return call_int_hook(msg_queue_associate, 0, msq, msqflg);
1036 }
1037
1038 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
1039 {
1040         return call_int_hook(msg_queue_msgctl, 0, msq, cmd);
1041 }
1042
1043 int security_msg_queue_msgsnd(struct msg_queue *msq,
1044                                struct msg_msg *msg, int msqflg)
1045 {
1046         return call_int_hook(msg_queue_msgsnd, 0, msq, msg, msqflg);
1047 }
1048
1049 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
1050                                struct task_struct *target, long type, int mode)
1051 {
1052         return call_int_hook(msg_queue_msgrcv, 0, msq, msg, target, type, mode);
1053 }
1054
1055 int security_shm_alloc(struct shmid_kernel *shp)
1056 {
1057         return call_int_hook(shm_alloc_security, 0, shp);
1058 }
1059
1060 void security_shm_free(struct shmid_kernel *shp)
1061 {
1062         call_void_hook(shm_free_security, shp);
1063 }
1064
1065 int security_shm_associate(struct shmid_kernel *shp, int shmflg)
1066 {
1067         return call_int_hook(shm_associate, 0, shp, shmflg);
1068 }
1069
1070 int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
1071 {
1072         return call_int_hook(shm_shmctl, 0, shp, cmd);
1073 }
1074
1075 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
1076 {
1077         return call_int_hook(shm_shmat, 0, shp, shmaddr, shmflg);
1078 }
1079
1080 int security_sem_alloc(struct sem_array *sma)
1081 {
1082         return call_int_hook(sem_alloc_security, 0, sma);
1083 }
1084
1085 void security_sem_free(struct sem_array *sma)
1086 {
1087         call_void_hook(sem_free_security, sma);
1088 }
1089
1090 int security_sem_associate(struct sem_array *sma, int semflg)
1091 {
1092         return call_int_hook(sem_associate, 0, sma, semflg);
1093 }
1094
1095 int security_sem_semctl(struct sem_array *sma, int cmd)
1096 {
1097         return call_int_hook(sem_semctl, 0, sma, cmd);
1098 }
1099
1100 int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1101                         unsigned nsops, int alter)
1102 {
1103         return call_int_hook(sem_semop, 0, sma, sops, nsops, alter);
1104 }
1105
1106 void security_d_instantiate(struct dentry *dentry, struct inode *inode)
1107 {
1108         if (unlikely(inode && IS_PRIVATE(inode)))
1109                 return;
1110         call_void_hook(d_instantiate, dentry, inode);
1111 }
1112 EXPORT_SYMBOL(security_d_instantiate);
1113
1114 int security_getprocattr(struct task_struct *p, char *name, char **value)
1115 {
1116         return call_int_hook(getprocattr, 0, p, name, value);
1117 }
1118
1119 int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
1120 {
1121         return call_int_hook(setprocattr, 0, p, name, value, size);
1122 }
1123
1124 int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1125 {
1126         return call_int_hook(netlink_send, 0, sk, skb);
1127 }
1128
1129 int security_ismaclabel(const char *name)
1130 {
1131         return call_int_hook(ismaclabel, 0, name);
1132 }
1133 EXPORT_SYMBOL(security_ismaclabel);
1134
1135 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1136 {
1137         return call_int_hook(secid_to_secctx, 0, secid, secdata, seclen);
1138 }
1139 EXPORT_SYMBOL(security_secid_to_secctx);
1140
1141 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
1142 {
1143         return call_int_hook(secctx_to_secid, 0, secdata, seclen, secid);
1144 }
1145 EXPORT_SYMBOL(security_secctx_to_secid);
1146
1147 void security_release_secctx(char *secdata, u32 seclen)
1148 {
1149         call_void_hook(release_secctx, secdata, seclen);
1150 }
1151 EXPORT_SYMBOL(security_release_secctx);
1152
1153 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1154 {
1155         return call_int_hook(inode_notifysecctx, 0, inode, ctx, ctxlen);
1156 }
1157 EXPORT_SYMBOL(security_inode_notifysecctx);
1158
1159 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1160 {
1161         return call_int_hook(inode_setsecctx, 0, dentry, ctx, ctxlen);
1162 }
1163 EXPORT_SYMBOL(security_inode_setsecctx);
1164
1165 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1166 {
1167         return call_int_hook(inode_getsecctx, 0, inode, ctx, ctxlen);
1168 }
1169 EXPORT_SYMBOL(security_inode_getsecctx);
1170
1171 #ifdef CONFIG_SECURITY_NETWORK
1172
1173 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk)
1174 {
1175         return call_int_hook(unix_stream_connect, 0, sock, other, newsk);
1176 }
1177 EXPORT_SYMBOL(security_unix_stream_connect);
1178
1179 int security_unix_may_send(struct socket *sock,  struct socket *other)
1180 {
1181         return call_int_hook(unix_may_send, 0, sock, other);
1182 }
1183 EXPORT_SYMBOL(security_unix_may_send);
1184
1185 int security_socket_create(int family, int type, int protocol, int kern)
1186 {
1187         return call_int_hook(socket_create, 0, family, type, protocol, kern);
1188 }
1189
1190 int security_socket_post_create(struct socket *sock, int family,
1191                                 int type, int protocol, int kern)
1192 {
1193         return call_int_hook(socket_post_create, 0, sock, family, type,
1194                                                 protocol, kern);
1195 }
1196
1197 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
1198 {
1199         return call_int_hook(socket_bind, 0, sock, address, addrlen);
1200 }
1201
1202 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
1203 {
1204         return call_int_hook(socket_connect, 0, sock, address, addrlen);
1205 }
1206
1207 int security_socket_listen(struct socket *sock, int backlog)
1208 {
1209         return call_int_hook(socket_listen, 0, sock, backlog);
1210 }
1211
1212 int security_socket_accept(struct socket *sock, struct socket *newsock)
1213 {
1214         return call_int_hook(socket_accept, 0, sock, newsock);
1215 }
1216
1217 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1218 {
1219         return call_int_hook(socket_sendmsg, 0, sock, msg, size);
1220 }
1221
1222 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1223                             int size, int flags)
1224 {
1225         return call_int_hook(socket_recvmsg, 0, sock, msg, size, flags);
1226 }
1227
1228 int security_socket_getsockname(struct socket *sock)
1229 {
1230         return call_int_hook(socket_getsockname, 0, sock);
1231 }
1232
1233 int security_socket_getpeername(struct socket *sock)
1234 {
1235         return call_int_hook(socket_getpeername, 0, sock);
1236 }
1237
1238 int security_socket_getsockopt(struct socket *sock, int level, int optname)
1239 {
1240         return call_int_hook(socket_getsockopt, 0, sock, level, optname);
1241 }
1242
1243 int security_socket_setsockopt(struct socket *sock, int level, int optname)
1244 {
1245         return call_int_hook(socket_setsockopt, 0, sock, level, optname);
1246 }
1247
1248 int security_socket_shutdown(struct socket *sock, int how)
1249 {
1250         return call_int_hook(socket_shutdown, 0, sock, how);
1251 }
1252
1253 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1254 {
1255         return call_int_hook(socket_sock_rcv_skb, 0, sk, skb);
1256 }
1257 EXPORT_SYMBOL(security_sock_rcv_skb);
1258
1259 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1260                                       int __user *optlen, unsigned len)
1261 {
1262         return call_int_hook(socket_getpeersec_stream, 0, sock, optval,
1263                                 optlen, len);
1264 }
1265
1266 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1267 {
1268         return call_int_hook(socket_getpeersec_dgram, 0, sock, skb, secid);
1269 }
1270 EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1271
1272 int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1273 {
1274         return call_int_hook(sk_alloc_security, 0, sk, family, priority);
1275 }
1276
1277 void security_sk_free(struct sock *sk)
1278 {
1279         call_void_hook(sk_free_security, sk);
1280 }
1281
1282 void security_sk_clone(const struct sock *sk, struct sock *newsk)
1283 {
1284         call_void_hook(sk_clone_security, sk, newsk);
1285 }
1286 EXPORT_SYMBOL(security_sk_clone);
1287
1288 void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1289 {
1290         call_void_hook(sk_getsecid, sk, &fl->flowi_secid);
1291 }
1292 EXPORT_SYMBOL(security_sk_classify_flow);
1293
1294 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1295 {
1296         call_void_hook(req_classify_flow, req, fl);
1297 }
1298 EXPORT_SYMBOL(security_req_classify_flow);
1299
1300 void security_sock_graft(struct sock *sk, struct socket *parent)
1301 {
1302         call_void_hook(sock_graft, sk, parent);
1303 }
1304 EXPORT_SYMBOL(security_sock_graft);
1305
1306 int security_inet_conn_request(struct sock *sk,
1307                         struct sk_buff *skb, struct request_sock *req)
1308 {
1309         return call_int_hook(inet_conn_request, 0, sk, skb, req);
1310 }
1311 EXPORT_SYMBOL(security_inet_conn_request);
1312
1313 void security_inet_csk_clone(struct sock *newsk,
1314                         const struct request_sock *req)
1315 {
1316         call_void_hook(inet_csk_clone, newsk, req);
1317 }
1318
1319 void security_inet_conn_established(struct sock *sk,
1320                         struct sk_buff *skb)
1321 {
1322         call_void_hook(inet_conn_established, sk, skb);
1323 }
1324
1325 int security_secmark_relabel_packet(u32 secid)
1326 {
1327         return call_int_hook(secmark_relabel_packet, 0, secid);
1328 }
1329 EXPORT_SYMBOL(security_secmark_relabel_packet);
1330
1331 void security_secmark_refcount_inc(void)
1332 {
1333         call_void_hook(secmark_refcount_inc);
1334 }
1335 EXPORT_SYMBOL(security_secmark_refcount_inc);
1336
1337 void security_secmark_refcount_dec(void)
1338 {
1339         call_void_hook(secmark_refcount_dec);
1340 }
1341 EXPORT_SYMBOL(security_secmark_refcount_dec);
1342
1343 int security_tun_dev_alloc_security(void **security)
1344 {
1345         return call_int_hook(tun_dev_alloc_security, 0, security);
1346 }
1347 EXPORT_SYMBOL(security_tun_dev_alloc_security);
1348
1349 void security_tun_dev_free_security(void *security)
1350 {
1351         call_void_hook(tun_dev_free_security, security);
1352 }
1353 EXPORT_SYMBOL(security_tun_dev_free_security);
1354
1355 int security_tun_dev_create(void)
1356 {
1357         return call_int_hook(tun_dev_create, 0);
1358 }
1359 EXPORT_SYMBOL(security_tun_dev_create);
1360
1361 int security_tun_dev_attach_queue(void *security)
1362 {
1363         return call_int_hook(tun_dev_attach_queue, 0, security);
1364 }
1365 EXPORT_SYMBOL(security_tun_dev_attach_queue);
1366
1367 int security_tun_dev_attach(struct sock *sk, void *security)
1368 {
1369         return call_int_hook(tun_dev_attach, 0, sk, security);
1370 }
1371 EXPORT_SYMBOL(security_tun_dev_attach);
1372
1373 int security_tun_dev_open(void *security)
1374 {
1375         return call_int_hook(tun_dev_open, 0, security);
1376 }
1377 EXPORT_SYMBOL(security_tun_dev_open);
1378
1379 #endif  /* CONFIG_SECURITY_NETWORK */
1380
1381 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1382
1383 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1384                                struct xfrm_user_sec_ctx *sec_ctx,
1385                                gfp_t gfp)
1386 {
1387         return call_int_hook(xfrm_policy_alloc_security, 0, ctxp, sec_ctx, gfp);
1388 }
1389 EXPORT_SYMBOL(security_xfrm_policy_alloc);
1390
1391 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1392                               struct xfrm_sec_ctx **new_ctxp)
1393 {
1394         return call_int_hook(xfrm_policy_clone_security, 0, old_ctx, new_ctxp);
1395 }
1396
1397 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1398 {
1399         call_void_hook(xfrm_policy_free_security, ctx);
1400 }
1401 EXPORT_SYMBOL(security_xfrm_policy_free);
1402
1403 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1404 {
1405         return call_int_hook(xfrm_policy_delete_security, 0, ctx);
1406 }
1407
1408 int security_xfrm_state_alloc(struct xfrm_state *x,
1409                               struct xfrm_user_sec_ctx *sec_ctx)
1410 {
1411         return call_int_hook(xfrm_state_alloc, 0, x, sec_ctx);
1412 }
1413 EXPORT_SYMBOL(security_xfrm_state_alloc);
1414
1415 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1416                                       struct xfrm_sec_ctx *polsec, u32 secid)
1417 {
1418         return call_int_hook(xfrm_state_alloc_acquire, 0, x, polsec, secid);
1419 }
1420
1421 int security_xfrm_state_delete(struct xfrm_state *x)
1422 {
1423         return call_int_hook(xfrm_state_delete_security, 0, x);
1424 }
1425 EXPORT_SYMBOL(security_xfrm_state_delete);
1426
1427 void security_xfrm_state_free(struct xfrm_state *x)
1428 {
1429         call_void_hook(xfrm_state_free_security, x);
1430 }
1431
1432 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1433 {
1434         return call_int_hook(xfrm_policy_lookup, 0, ctx, fl_secid, dir);
1435 }
1436
1437 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1438                                        struct xfrm_policy *xp,
1439                                        const struct flowi *fl)
1440 {
1441         return call_int_hook(xfrm_state_pol_flow_match, 0, x, xp, fl);
1442 }
1443
1444 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1445 {
1446         return call_int_hook(xfrm_decode_session, 0, skb, secid, 1);
1447 }
1448
1449 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1450 {
1451         int rc = call_int_hook(xfrm_decode_session, 0, skb, &fl->flowi_secid,
1452                                 0);
1453
1454         BUG_ON(rc);
1455 }
1456 EXPORT_SYMBOL(security_skb_classify_flow);
1457
1458 #endif  /* CONFIG_SECURITY_NETWORK_XFRM */
1459
1460 #ifdef CONFIG_KEYS
1461
1462 int security_key_alloc(struct key *key, const struct cred *cred,
1463                        unsigned long flags)
1464 {
1465         return call_int_hook(key_alloc, 0, key, cred, flags);
1466 }
1467
1468 void security_key_free(struct key *key)
1469 {
1470         call_void_hook(key_free, key);
1471 }
1472
1473 int security_key_permission(key_ref_t key_ref,
1474                             const struct cred *cred, unsigned perm)
1475 {
1476         return call_int_hook(key_permission, 0, key_ref, cred, perm);
1477 }
1478
1479 int security_key_getsecurity(struct key *key, char **_buffer)
1480 {
1481         return call_int_hook(key_getsecurity, 0, key, _buffer);
1482 }
1483
1484 #endif  /* CONFIG_KEYS */
1485
1486 #ifdef CONFIG_AUDIT
1487
1488 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1489 {
1490         return call_int_hook(audit_rule_init, 0, field, op, rulestr, lsmrule);
1491 }
1492
1493 int security_audit_rule_known(struct audit_krule *krule)
1494 {
1495         return call_int_hook(audit_rule_known, 0, krule);
1496 }
1497
1498 void security_audit_rule_free(void *lsmrule)
1499 {
1500         call_void_hook(audit_rule_free, lsmrule);
1501 }
1502
1503 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1504                               struct audit_context *actx)
1505 {
1506         return call_int_hook(audit_rule_match, 0, secid, field, op, lsmrule,
1507                                 actx);
1508 }
1509
1510 #endif /* CONFIG_AUDIT */