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/security.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 /* Security operations */
 137
 138 int security_binder_set_context_mgr(struct task_struct *mgr)
 139 {
 140         return security_ops->binder_set_context_mgr(mgr);
 141 }
 142
 143 int security_binder_transaction(struct task_struct *from,
 144                                 struct task_struct *to)
 145 {
 146         return security_ops->binder_transaction(from, to);
 147 }
 148
 149 int security_binder_transfer_binder(struct task_struct *from,
 150                                     struct task_struct *to)
 151 {
 152         return security_ops->binder_transfer_binder(from, to);
 153 }
 154
 155 int security_binder_transfer_file(struct task_struct *from,
 156                                   struct task_struct *to, struct file *file)
 157 {
 158         return security_ops->binder_transfer_file(from, to, file);
 159 }
 160
 161 int security_ptrace_access_check(struct task_struct *child, unsigned int mode)
 162 {
 163 #ifdef CONFIG_SECURITY_YAMA_STACKED
 164         int rc;
 165         rc = yama_ptrace_access_check(child, mode);
 166         if (rc)
 167                 return rc;
 168 #endif
 169         return security_ops->ptrace_access_check(child, mode);
 170 }
 171
 172 int security_ptrace_traceme(struct task_struct *parent)
 173 {
 174 #ifdef CONFIG_SECURITY_YAMA_STACKED
 175         int rc;
 176         rc = yama_ptrace_traceme(parent);
 177         if (rc)
 178                 return rc;
 179 #endif
 180         return security_ops->ptrace_traceme(parent);
 181 }
 182
 183 int security_capget(struct task_struct *target,
 184                      kernel_cap_t *effective,
 185                      kernel_cap_t *inheritable,
 186                      kernel_cap_t *permitted)
 187 {
 188         return security_ops->capget(target, effective, inheritable, permitted);
 189 }
 190
 191 int security_capset(struct cred *new, const struct cred *old,
 192                     const kernel_cap_t *effective,
 193                     const kernel_cap_t *inheritable,
 194                     const kernel_cap_t *permitted)
 195 {
 196         return security_ops->capset(new, old,
 197                                     effective, inheritable, permitted);
 198 }
 199
 200 int security_capable(const struct cred *cred, struct user_namespace *ns,
 201                      int cap)
 202 {
 203         return security_ops->capable(cred, ns, cap, SECURITY_CAP_AUDIT);
 204 }
 205
 206 int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
 207                              int cap)
 208 {
 209         return security_ops->capable(cred, ns, cap, SECURITY_CAP_NOAUDIT);
 210 }
 211
 212 int security_quotactl(int cmds, int type, int id, struct super_block *sb)
 213 {
 214         return security_ops->quotactl(cmds, type, id, sb);
 215 }
 216
 217 int security_quota_on(struct dentry *dentry)
 218 {
 219         return security_ops->quota_on(dentry);
 220 }
 221
 222 int security_syslog(int type)
 223 {
 224         return security_ops->syslog(type);
 225 }
 226
 227 int security_settime(const struct timespec *ts, const struct timezone *tz)
 228 {
 229         return security_ops->settime(ts, tz);
 230 }
 231
 232 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
 233 {
 234         return security_ops->vm_enough_memory(mm, pages);
 235 }
 236
 237 int security_bprm_set_creds(struct linux_binprm *bprm)
 238 {
 239         return security_ops->bprm_set_creds(bprm);
 240 }
 241
 242 int security_bprm_check(struct linux_binprm *bprm)
 243 {
 244         int ret;
 245
 246         ret = security_ops->bprm_check_security(bprm);
 247         if (ret)
 248                 return ret;
 249         return ima_bprm_check(bprm);
 250 }
 251
 252 void security_bprm_committing_creds(struct linux_binprm *bprm)
 253 {
 254         security_ops->bprm_committing_creds(bprm);
 255 }
 256
 257 void security_bprm_committed_creds(struct linux_binprm *bprm)
 258 {
 259         security_ops->bprm_committed_creds(bprm);
 260 }
 261
 262 int security_bprm_secureexec(struct linux_binprm *bprm)
 263 {
 264         return security_ops->bprm_secureexec(bprm);
 265 }
 266
 267 int security_sb_alloc(struct super_block *sb)
 268 {
 269         return security_ops->sb_alloc_security(sb);
 270 }
 271
 272 void security_sb_free(struct super_block *sb)
 273 {
 274         security_ops->sb_free_security(sb);
 275 }
 276
 277 int security_sb_copy_data(char *orig, char *copy)
 278 {
 279         return security_ops->sb_copy_data(orig, copy);
 280 }
 281 EXPORT_SYMBOL(security_sb_copy_data);
 282
 283 int security_sb_remount(struct super_block *sb, void *data)
 284 {
 285         return security_ops->sb_remount(sb, data);
 286 }
 287
 288 int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
 289 {
 290         return security_ops->sb_kern_mount(sb, flags, data);
 291 }
 292
 293 int security_sb_show_options(struct seq_file *m, struct super_block *sb)
 294 {
 295         return security_ops->sb_show_options(m, sb);
 296 }
 297
 298 int security_sb_statfs(struct dentry *dentry)
 299 {
 300         return security_ops->sb_statfs(dentry);
 301 }
 302
 303 int security_sb_mount(const char *dev_name, struct path *path,
 304                        const char *type, unsigned long flags, void *data)
 305 {
 306         return security_ops->sb_mount(dev_name, path, type, flags, data);
 307 }
 308
 309 int security_sb_umount(struct vfsmount *mnt, int flags)
 310 {
 311         return security_ops->sb_umount(mnt, flags);
 312 }
 313
 314 int security_sb_pivotroot(struct path *old_path, struct path *new_path)
 315 {
 316         return security_ops->sb_pivotroot(old_path, new_path);
 317 }
 318
 319 int security_sb_set_mnt_opts(struct super_block *sb,
 320                                 struct security_mnt_opts *opts,
 321                                 unsigned long kern_flags,
 322                                 unsigned long *set_kern_flags)
 323 {
 324         return security_ops->sb_set_mnt_opts(sb, opts, kern_flags,
 325                                                 set_kern_flags);
 326 }
 327 EXPORT_SYMBOL(security_sb_set_mnt_opts);
 328
 329 int security_sb_clone_mnt_opts(const struct super_block *oldsb,
 330                                 struct super_block *newsb)
 331 {
 332         return security_ops->sb_clone_mnt_opts(oldsb, newsb);
 333 }
 334 EXPORT_SYMBOL(security_sb_clone_mnt_opts);
 335
 336 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
 337 {
 338         return security_ops->sb_parse_opts_str(options, opts);
 339 }
 340 EXPORT_SYMBOL(security_sb_parse_opts_str);
 341
 342 int security_inode_alloc(struct inode *inode)
 343 {
 344         inode->i_security = NULL;
 345         return security_ops->inode_alloc_security(inode);
 346 }
 347
 348 void security_inode_free(struct inode *inode)
 349 {
 350         integrity_inode_free(inode);
 351         security_ops->inode_free_security(inode);
 352 }
 353
 354 int security_dentry_init_security(struct dentry *dentry, int mode,
 355                                         struct qstr *name, void **ctx,
 356                                         u32 *ctxlen)
 357 {
 358         return security_ops->dentry_init_security(dentry, mode, name,
 359                                                         ctx, ctxlen);
 360 }
 361 EXPORT_SYMBOL(security_dentry_init_security);
 362
 363 int security_inode_init_security(struct inode *inode, struct inode *dir,
 364                                  const struct qstr *qstr,
 365                                  const initxattrs initxattrs, void *fs_data)
 366 {
 367         struct xattr new_xattrs[MAX_LSM_EVM_XATTR + 1];
 368         struct xattr *lsm_xattr, *evm_xattr, *xattr;
 369         int ret;
 370
 371         if (unlikely(IS_PRIVATE(inode)))
 372                 return 0;
 373
 374         if (!initxattrs)
 375                 return security_ops->inode_init_security(inode, dir, qstr,
 376                                                          NULL, NULL, NULL);
 377         memset(new_xattrs, 0, sizeof(new_xattrs));
 378         lsm_xattr = new_xattrs;
 379         ret = security_ops->inode_init_security(inode, dir, qstr,
 380                                                 &lsm_xattr->name,
 381                                                 &lsm_xattr->value,
 382                                                 &lsm_xattr->value_len);
 383         if (ret)
 384                 goto out;
 385
 386         evm_xattr = lsm_xattr + 1;
 387         ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr);
 388         if (ret)
 389                 goto out;
 390         ret = initxattrs(inode, new_xattrs, fs_data);
 391 out:
 392         for (xattr = new_xattrs; xattr->value != NULL; xattr++)
 393                 kfree(xattr->value);
 394         return (ret == -EOPNOTSUPP) ? 0 : ret;
 395 }
 396 EXPORT_SYMBOL(security_inode_init_security);
 397
 398 int security_old_inode_init_security(struct inode *inode, struct inode *dir,
 399                                      const struct qstr *qstr, const char **name,
 400                                      void **value, size_t *len)
 401 {
 402         if (unlikely(IS_PRIVATE(inode)))
 403                 return -EOPNOTSUPP;
 404         return security_ops->inode_init_security(inode, dir, qstr, name, value,
 405                                                  len);
 406 }
 407 EXPORT_SYMBOL(security_old_inode_init_security);
 408
 409 #ifdef CONFIG_SECURITY_PATH
 410 int security_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
 411                         unsigned int dev)
 412 {
 413         if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 414                 return 0;
 415         return security_ops->path_mknod(dir, dentry, mode, dev);
 416 }
 417 EXPORT_SYMBOL(security_path_mknod);
 418
 419 int security_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
 420 {
 421         if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 422                 return 0;
 423         return security_ops->path_mkdir(dir, dentry, mode);
 424 }
 425 EXPORT_SYMBOL(security_path_mkdir);
 426
 427 int security_path_rmdir(struct path *dir, struct dentry *dentry)
 428 {
 429         if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 430                 return 0;
 431         return security_ops->path_rmdir(dir, dentry);
 432 }
 433
 434 int security_path_unlink(struct path *dir, struct dentry *dentry)
 435 {
 436         if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 437                 return 0;
 438         return security_ops->path_unlink(dir, dentry);
 439 }
 440 EXPORT_SYMBOL(security_path_unlink);
 441
 442 int security_path_symlink(struct path *dir, struct dentry *dentry,
 443                           const char *old_name)
 444 {
 445         if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 446                 return 0;
 447         return security_ops->path_symlink(dir, dentry, old_name);
 448 }
 449
 450 int security_path_link(struct dentry *old_dentry, struct path *new_dir,
 451                        struct dentry *new_dentry)
 452 {
 453         if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
 454                 return 0;
 455         return security_ops->path_link(old_dentry, new_dir, new_dentry);
 456 }
 457
 458 int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
 459                          struct path *new_dir, struct dentry *new_dentry,
 460                          unsigned int flags)
 461 {
 462         if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
 463                      (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
 464                 return 0;
 465
 466         if (flags & RENAME_EXCHANGE) {
 467                 int err = security_ops->path_rename(new_dir, new_dentry,
 468                                                     old_dir, old_dentry);
 469                 if (err)
 470                         return err;
 471         }
 472
 473         return security_ops->path_rename(old_dir, old_dentry, new_dir,
 474                                          new_dentry);
 475 }
 476 EXPORT_SYMBOL(security_path_rename);
 477
 478 int security_path_truncate(struct path *path)
 479 {
 480         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 481                 return 0;
 482         return security_ops->path_truncate(path);
 483 }
 484
 485 int security_path_chmod(struct path *path, umode_t mode)
 486 {
 487         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 488                 return 0;
 489         return security_ops->path_chmod(path, mode);
 490 }
 491
 492 int security_path_chown(struct path *path, kuid_t uid, kgid_t gid)
 493 {
 494         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 495                 return 0;
 496         return security_ops->path_chown(path, uid, gid);
 497 }
 498
 499 int security_path_chroot(struct path *path)
 500 {
 501         return security_ops->path_chroot(path);
 502 }
 503 #endif
 504
 505 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode)
 506 {
 507         if (unlikely(IS_PRIVATE(dir)))
 508                 return 0;
 509         return security_ops->inode_create(dir, dentry, mode);
 510 }
 511 EXPORT_SYMBOL_GPL(security_inode_create);
 512
 513 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
 514                          struct dentry *new_dentry)
 515 {
 516         if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
 517                 return 0;
 518         return security_ops->inode_link(old_dentry, dir, new_dentry);
 519 }
 520
 521 int security_inode_unlink(struct inode *dir, struct dentry *dentry)
 522 {
 523         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 524                 return 0;
 525         return security_ops->inode_unlink(dir, dentry);
 526 }
 527
 528 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
 529                             const char *old_name)
 530 {
 531         if (unlikely(IS_PRIVATE(dir)))
 532                 return 0;
 533         return security_ops->inode_symlink(dir, dentry, old_name);
 534 }
 535
 536 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 537 {
 538         if (unlikely(IS_PRIVATE(dir)))
 539                 return 0;
 540         return security_ops->inode_mkdir(dir, dentry, mode);
 541 }
 542 EXPORT_SYMBOL_GPL(security_inode_mkdir);
 543
 544 int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
 545 {
 546         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 547                 return 0;
 548         return security_ops->inode_rmdir(dir, dentry);
 549 }
 550
 551 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
 552 {
 553         if (unlikely(IS_PRIVATE(dir)))
 554                 return 0;
 555         return security_ops->inode_mknod(dir, dentry, mode, dev);
 556 }
 557
 558 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
 559                            struct inode *new_dir, struct dentry *new_dentry,
 560                            unsigned int flags)
 561 {
 562         if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
 563             (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
 564                 return 0;
 565
 566         if (flags & RENAME_EXCHANGE) {
 567                 int err = security_ops->inode_rename(new_dir, new_dentry,
 568                                                      old_dir, old_dentry);
 569                 if (err)
 570                         return err;
 571         }
 572
 573         return security_ops->inode_rename(old_dir, old_dentry,
 574                                            new_dir, new_dentry);
 575 }
 576
 577 int security_inode_readlink(struct dentry *dentry)
 578 {
 579         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 580                 return 0;
 581         return security_ops->inode_readlink(dentry);
 582 }
 583
 584 int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
 585 {
 586         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 587                 return 0;
 588         return security_ops->inode_follow_link(dentry, nd);
 589 }
 590
 591 int security_inode_permission(struct inode *inode, int mask)
 592 {
 593         if (unlikely(IS_PRIVATE(inode)))
 594                 return 0;
 595         return security_ops->inode_permission(inode, mask);
 596 }
 597
 598 int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
 599 {
 600         int ret;
 601
 602         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 603                 return 0;
 604         ret = security_ops->inode_setattr(dentry, attr);
 605         if (ret)
 606                 return ret;
 607         return evm_inode_setattr(dentry, attr);
 608 }
 609 EXPORT_SYMBOL_GPL(security_inode_setattr);
 610
 611 int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
 612 {
 613         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 614                 return 0;
 615         return security_ops->inode_getattr(mnt, dentry);
 616 }
 617
 618 int security_inode_setxattr(struct dentry *dentry, const char *name,
 619                             const void *value, size_t size, int flags)
 620 {
 621         int ret;
 622
 623         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 624                 return 0;
 625         ret = security_ops->inode_setxattr(dentry, name, value, size, flags);
 626         if (ret)
 627                 return ret;
 628         ret = ima_inode_setxattr(dentry, name, value, size);
 629         if (ret)
 630                 return ret;
 631         return evm_inode_setxattr(dentry, name, value, size);
 632 }
 633
 634 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
 635                                   const void *value, size_t size, int flags)
 636 {
 637         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 638                 return;
 639         security_ops->inode_post_setxattr(dentry, name, value, size, flags);
 640         evm_inode_post_setxattr(dentry, name, value, size);
 641 }
 642
 643 int security_inode_getxattr(struct dentry *dentry, const char *name)
 644 {
 645         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 646                 return 0;
 647         return security_ops->inode_getxattr(dentry, name);
 648 }
 649
 650 int security_inode_listxattr(struct dentry *dentry)
 651 {
 652         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 653                 return 0;
 654         return security_ops->inode_listxattr(dentry);
 655 }
 656
 657 int security_inode_removexattr(struct dentry *dentry, const char *name)
 658 {
 659         int ret;
 660
 661         if (unlikely(IS_PRIVATE(dentry->d_inode)))
 662                 return 0;
 663         ret = security_ops->inode_removexattr(dentry, name);
 664         if (ret)
 665                 return ret;
 666         ret = ima_inode_removexattr(dentry, name);
 667         if (ret)
 668                 return ret;
 669         return evm_inode_removexattr(dentry, name);
 670 }
 671
 672 int security_inode_need_killpriv(struct dentry *dentry)
 673 {
 674         return security_ops->inode_need_killpriv(dentry);
 675 }
 676
 677 int security_inode_killpriv(struct dentry *dentry)
 678 {
 679         return security_ops->inode_killpriv(dentry);
 680 }
 681
 682 int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
 683 {
 684         if (unlikely(IS_PRIVATE(inode)))
 685                 return -EOPNOTSUPP;
 686         return security_ops->inode_getsecurity(inode, name, buffer, alloc);
 687 }
 688
 689 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
 690 {
 691         if (unlikely(IS_PRIVATE(inode)))
 692                 return -EOPNOTSUPP;
 693         return security_ops->inode_setsecurity(inode, name, value, size, flags);
 694 }
 695
 696 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
 697 {
 698         if (unlikely(IS_PRIVATE(inode)))
 699                 return 0;
 700         return security_ops->inode_listsecurity(inode, buffer, buffer_size);
 701 }
 702 EXPORT_SYMBOL(security_inode_listsecurity);
 703
 704 void security_inode_getsecid(const struct inode *inode, u32 *secid)
 705 {
 706         security_ops->inode_getsecid(inode, secid);
 707 }
 708
 709 int security_file_permission(struct file *file, int mask)
 710 {
 711         int ret;
 712
 713         ret = security_ops->file_permission(file, mask);
 714         if (ret)
 715                 return ret;
 716
 717         return fsnotify_perm(file, mask);
 718 }
 719
 720 int security_file_alloc(struct file *file)
 721 {
 722         return security_ops->file_alloc_security(file);
 723 }
 724
 725 void security_file_free(struct file *file)
 726 {
 727         security_ops->file_free_security(file);
 728 }
 729
 730 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 731 {
 732         return security_ops->file_ioctl(file, cmd, arg);
 733 }
 734
 735 static inline unsigned long mmap_prot(struct file *file, unsigned long prot)
 736 {
 737         /*
 738          * Does we have PROT_READ and does the application expect
 739          * it to imply PROT_EXEC?  If not, nothing to talk about...
 740          */
 741         if ((prot & (PROT_READ | PROT_EXEC)) != PROT_READ)
 742                 return prot;
 743         if (!(current->personality & READ_IMPLIES_EXEC))
 744                 return prot;
 745         /*
 746          * if that's an anonymous mapping, let it.
 747          */
 748         if (!file)
 749                 return prot | PROT_EXEC;
 750         /*
 751          * ditto if it's not on noexec mount, except that on !MMU we need
 752          * NOMMU_MAP_EXEC (== VM_MAYEXEC) in this case
 753          */
 754         if (!(file->f_path.mnt->mnt_flags & MNT_NOEXEC)) {
 755 #ifndef CONFIG_MMU
 756                 if (file->f_op->mmap_capabilities) {
 757                         unsigned caps = file->f_op->mmap_capabilities(file);
 758                         if (!(caps & NOMMU_MAP_EXEC))
 759                                 return prot;
 760                 }
 761 #endif
 762                 return prot | PROT_EXEC;
 763         }
 764         /* anything on noexec mount won't get PROT_EXEC */
 765         return prot;
 766 }
 767
 768 int security_mmap_file(struct file *file, unsigned long prot,
 769                         unsigned long flags)
 770 {
 771         int ret;
 772         ret = security_ops->mmap_file(file, prot,
 773                                         mmap_prot(file, prot), flags);
 774         if (ret)
 775                 return ret;
 776         return ima_file_mmap(file, prot);
 777 }
 778
 779 int security_mmap_addr(unsigned long addr)
 780 {
 781         return security_ops->mmap_addr(addr);
 782 }
 783
 784 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
 785                             unsigned long prot)
 786 {
 787         return security_ops->file_mprotect(vma, reqprot, prot);
 788 }
 789
 790 int security_file_lock(struct file *file, unsigned int cmd)
 791 {
 792         return security_ops->file_lock(file, cmd);
 793 }
 794
 795 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
 796 {
 797         return security_ops->file_fcntl(file, cmd, arg);
 798 }
 799
 800 void security_file_set_fowner(struct file *file)
 801 {
 802         security_ops->file_set_fowner(file);
 803 }
 804
 805 int security_file_send_sigiotask(struct task_struct *tsk,
 806                                   struct fown_struct *fown, int sig)
 807 {
 808         return security_ops->file_send_sigiotask(tsk, fown, sig);
 809 }
 810
 811 int security_file_receive(struct file *file)
 812 {
 813         return security_ops->file_receive(file);
 814 }
 815
 816 int security_file_open(struct file *file, const struct cred *cred)
 817 {
 818         int ret;
 819
 820         ret = security_ops->file_open(file, cred);
 821         if (ret)
 822                 return ret;
 823
 824         return fsnotify_perm(file, MAY_OPEN);
 825 }
 826
 827 int security_task_create(unsigned long clone_flags)
 828 {
 829         return security_ops->task_create(clone_flags);
 830 }
 831
 832 void security_task_free(struct task_struct *task)
 833 {
 834 #ifdef CONFIG_SECURITY_YAMA_STACKED
 835         yama_task_free(task);
 836 #endif
 837         security_ops->task_free(task);
 838 }
 839
 840 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
 841 {
 842         return security_ops->cred_alloc_blank(cred, gfp);
 843 }
 844
 845 void security_cred_free(struct cred *cred)
 846 {
 847         security_ops->cred_free(cred);
 848 }
 849
 850 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
 851 {
 852         return security_ops->cred_prepare(new, old, gfp);
 853 }
 854
 855 void security_transfer_creds(struct cred *new, const struct cred *old)
 856 {
 857         security_ops->cred_transfer(new, old);
 858 }
 859
 860 int security_kernel_act_as(struct cred *new, u32 secid)
 861 {
 862         return security_ops->kernel_act_as(new, secid);
 863 }
 864
 865 int security_kernel_create_files_as(struct cred *new, struct inode *inode)
 866 {
 867         return security_ops->kernel_create_files_as(new, inode);
 868 }
 869
 870 int security_kernel_fw_from_file(struct file *file, char *buf, size_t size)
 871 {
 872         int ret;
 873
 874         ret = security_ops->kernel_fw_from_file(file, buf, size);
 875         if (ret)
 876                 return ret;
 877         return ima_fw_from_file(file, buf, size);
 878 }
 879 EXPORT_SYMBOL_GPL(security_kernel_fw_from_file);
 880
 881 int security_kernel_module_request(char *kmod_name)
 882 {
 883         return security_ops->kernel_module_request(kmod_name);
 884 }
 885
 886 int security_kernel_module_from_file(struct file *file)
 887 {
 888         int ret;
 889
 890         ret = security_ops->kernel_module_from_file(file);
 891         if (ret)
 892                 return ret;
 893         return ima_module_check(file);
 894 }
 895
 896 int security_task_fix_setuid(struct cred *new, const struct cred *old,
 897                              int flags)
 898 {
 899         return security_ops->task_fix_setuid(new, old, flags);
 900 }
 901
 902 int security_task_setpgid(struct task_struct *p, pid_t pgid)
 903 {
 904         return security_ops->task_setpgid(p, pgid);
 905 }
 906
 907 int security_task_getpgid(struct task_struct *p)
 908 {
 909         return security_ops->task_getpgid(p);
 910 }
 911
 912 int security_task_getsid(struct task_struct *p)
 913 {
 914         return security_ops->task_getsid(p);
 915 }
 916
 917 void security_task_getsecid(struct task_struct *p, u32 *secid)
 918 {
 919         security_ops->task_getsecid(p, secid);
 920 }
 921 EXPORT_SYMBOL(security_task_getsecid);
 922
 923 int security_task_setnice(struct task_struct *p, int nice)
 924 {
 925         return security_ops->task_setnice(p, nice);
 926 }
 927
 928 int security_task_setioprio(struct task_struct *p, int ioprio)
 929 {
 930         return security_ops->task_setioprio(p, ioprio);
 931 }
 932
 933 int security_task_getioprio(struct task_struct *p)
 934 {
 935         return security_ops->task_getioprio(p);
 936 }
 937
 938 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
 939                 struct rlimit *new_rlim)
 940 {
 941         return security_ops->task_setrlimit(p, resource, new_rlim);
 942 }
 943
 944 int security_task_setscheduler(struct task_struct *p)
 945 {
 946         return security_ops->task_setscheduler(p);
 947 }
 948
 949 int security_task_getscheduler(struct task_struct *p)
 950 {
 951         return security_ops->task_getscheduler(p);
 952 }
 953
 954 int security_task_movememory(struct task_struct *p)
 955 {
 956         return security_ops->task_movememory(p);
 957 }
 958
 959 int security_task_kill(struct task_struct *p, struct siginfo *info,
 960                         int sig, u32 secid)
 961 {
 962         return security_ops->task_kill(p, info, sig, secid);
 963 }
 964
 965 int security_task_wait(struct task_struct *p)
 966 {
 967         return security_ops->task_wait(p);
 968 }
 969
 970 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
 971                          unsigned long arg4, unsigned long arg5)
 972 {
 973 #ifdef CONFIG_SECURITY_YAMA_STACKED
 974         int rc;
 975         rc = yama_task_prctl(option, arg2, arg3, arg4, arg5);
 976         if (rc != -ENOSYS)
 977                 return rc;
 978 #endif
 979         return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
 980 }
 981
 982 void security_task_to_inode(struct task_struct *p, struct inode *inode)
 983 {
 984         security_ops->task_to_inode(p, inode);
 985 }
 986
 987 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
 988 {
 989         return security_ops->ipc_permission(ipcp, flag);
 990 }
 991
 992 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
 993 {
 994         security_ops->ipc_getsecid(ipcp, secid);
 995 }
 996
 997 int security_msg_msg_alloc(struct msg_msg *msg)
 998 {
 999         return security_ops->msg_msg_alloc_security(msg);
1000 }
1001
1002 void security_msg_msg_free(struct msg_msg *msg)
1003 {
1004         security_ops->msg_msg_free_security(msg);
1005 }
1006
1007 int security_msg_queue_alloc(struct msg_queue *msq)
1008 {
1009         return security_ops->msg_queue_alloc_security(msq);
1010 }
1011
1012 void security_msg_queue_free(struct msg_queue *msq)
1013 {
1014         security_ops->msg_queue_free_security(msq);
1015 }
1016
1017 int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
1018 {
1019         return security_ops->msg_queue_associate(msq, msqflg);
1020 }
1021
1022 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
1023 {
1024         return security_ops->msg_queue_msgctl(msq, cmd);
1025 }
1026
1027 int security_msg_queue_msgsnd(struct msg_queue *msq,
1028                                struct msg_msg *msg, int msqflg)
1029 {
1030         return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
1031 }
1032
1033 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
1034                                struct task_struct *target, long type, int mode)
1035 {
1036         return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
1037 }
1038
1039 int security_shm_alloc(struct shmid_kernel *shp)
1040 {
1041         return security_ops->shm_alloc_security(shp);
1042 }
1043
1044 void security_shm_free(struct shmid_kernel *shp)
1045 {
1046         security_ops->shm_free_security(shp);
1047 }
1048
1049 int security_shm_associate(struct shmid_kernel *shp, int shmflg)
1050 {
1051         return security_ops->shm_associate(shp, shmflg);
1052 }
1053
1054 int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
1055 {
1056         return security_ops->shm_shmctl(shp, cmd);
1057 }
1058
1059 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
1060 {
1061         return security_ops->shm_shmat(shp, shmaddr, shmflg);
1062 }
1063
1064 int security_sem_alloc(struct sem_array *sma)
1065 {
1066         return security_ops->sem_alloc_security(sma);
1067 }
1068
1069 void security_sem_free(struct sem_array *sma)
1070 {
1071         security_ops->sem_free_security(sma);
1072 }
1073
1074 int security_sem_associate(struct sem_array *sma, int semflg)
1075 {
1076         return security_ops->sem_associate(sma, semflg);
1077 }
1078
1079 int security_sem_semctl(struct sem_array *sma, int cmd)
1080 {
1081         return security_ops->sem_semctl(sma, cmd);
1082 }
1083
1084 int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1085                         unsigned nsops, int alter)
1086 {
1087         return security_ops->sem_semop(sma, sops, nsops, alter);
1088 }
1089
1090 void security_d_instantiate(struct dentry *dentry, struct inode *inode)
1091 {
1092         if (unlikely(inode && IS_PRIVATE(inode)))
1093                 return;
1094         security_ops->d_instantiate(dentry, inode);
1095 }
1096 EXPORT_SYMBOL(security_d_instantiate);
1097
1098 int security_getprocattr(struct task_struct *p, char *name, char **value)
1099 {
1100         return security_ops->getprocattr(p, name, value);
1101 }
1102
1103 int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
1104 {
1105         return security_ops->setprocattr(p, name, value, size);
1106 }
1107
1108 int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1109 {
1110         return security_ops->netlink_send(sk, skb);
1111 }
1112
1113 int security_ismaclabel(const char *name)
1114 {
1115         return security_ops->ismaclabel(name);
1116 }
1117 EXPORT_SYMBOL(security_ismaclabel);
1118
1119 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1120 {
1121         return security_ops->secid_to_secctx(secid, secdata, seclen);
1122 }
1123 EXPORT_SYMBOL(security_secid_to_secctx);
1124
1125 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
1126 {
1127         return security_ops->secctx_to_secid(secdata, seclen, secid);
1128 }
1129 EXPORT_SYMBOL(security_secctx_to_secid);
1130
1131 void security_release_secctx(char *secdata, u32 seclen)
1132 {
1133         security_ops->release_secctx(secdata, seclen);
1134 }
1135 EXPORT_SYMBOL(security_release_secctx);
1136
1137 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1138 {
1139         return security_ops->inode_notifysecctx(inode, ctx, ctxlen);
1140 }
1141 EXPORT_SYMBOL(security_inode_notifysecctx);
1142
1143 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1144 {
1145         return security_ops->inode_setsecctx(dentry, ctx, ctxlen);
1146 }
1147 EXPORT_SYMBOL(security_inode_setsecctx);
1148
1149 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1150 {
1151         return security_ops->inode_getsecctx(inode, ctx, ctxlen);
1152 }
1153 EXPORT_SYMBOL(security_inode_getsecctx);
1154
1155 #ifdef CONFIG_SECURITY_NETWORK
1156
1157 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk)
1158 {
1159         return security_ops->unix_stream_connect(sock, other, newsk);
1160 }
1161 EXPORT_SYMBOL(security_unix_stream_connect);
1162
1163 int security_unix_may_send(struct socket *sock,  struct socket *other)
1164 {
1165         return security_ops->unix_may_send(sock, other);
1166 }
1167 EXPORT_SYMBOL(security_unix_may_send);
1168
1169 int security_socket_create(int family, int type, int protocol, int kern)
1170 {
1171         return security_ops->socket_create(family, type, protocol, kern);
1172 }
1173
1174 int security_socket_post_create(struct socket *sock, int family,
1175                                 int type, int protocol, int kern)
1176 {
1177         return security_ops->socket_post_create(sock, family, type,
1178                                                 protocol, kern);
1179 }
1180
1181 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
1182 {
1183         return security_ops->socket_bind(sock, address, addrlen);
1184 }
1185
1186 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
1187 {
1188         return security_ops->socket_connect(sock, address, addrlen);
1189 }
1190
1191 int security_socket_listen(struct socket *sock, int backlog)
1192 {
1193         return security_ops->socket_listen(sock, backlog);
1194 }
1195
1196 int security_socket_accept(struct socket *sock, struct socket *newsock)
1197 {
1198         return security_ops->socket_accept(sock, newsock);
1199 }
1200
1201 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1202 {
1203         return security_ops->socket_sendmsg(sock, msg, size);
1204 }
1205
1206 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1207                             int size, int flags)
1208 {
1209         return security_ops->socket_recvmsg(sock, msg, size, flags);
1210 }
1211
1212 int security_socket_getsockname(struct socket *sock)
1213 {
1214         return security_ops->socket_getsockname(sock);
1215 }
1216
1217 int security_socket_getpeername(struct socket *sock)
1218 {
1219         return security_ops->socket_getpeername(sock);
1220 }
1221
1222 int security_socket_getsockopt(struct socket *sock, int level, int optname)
1223 {
1224         return security_ops->socket_getsockopt(sock, level, optname);
1225 }
1226
1227 int security_socket_setsockopt(struct socket *sock, int level, int optname)
1228 {
1229         return security_ops->socket_setsockopt(sock, level, optname);
1230 }
1231
1232 int security_socket_shutdown(struct socket *sock, int how)
1233 {
1234         return security_ops->socket_shutdown(sock, how);
1235 }
1236
1237 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1238 {
1239         return security_ops->socket_sock_rcv_skb(sk, skb);
1240 }
1241 EXPORT_SYMBOL(security_sock_rcv_skb);
1242
1243 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1244                                       int __user *optlen, unsigned len)
1245 {
1246         return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
1247 }
1248
1249 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1250 {
1251         return security_ops->socket_getpeersec_dgram(sock, skb, secid);
1252 }
1253 EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1254
1255 int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1256 {
1257         return security_ops->sk_alloc_security(sk, family, priority);
1258 }
1259
1260 void security_sk_free(struct sock *sk)
1261 {
1262         security_ops->sk_free_security(sk);
1263 }
1264
1265 void security_sk_clone(const struct sock *sk, struct sock *newsk)
1266 {
1267         security_ops->sk_clone_security(sk, newsk);
1268 }
1269 EXPORT_SYMBOL(security_sk_clone);
1270
1271 void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1272 {
1273         security_ops->sk_getsecid(sk, &fl->flowi_secid);
1274 }
1275 EXPORT_SYMBOL(security_sk_classify_flow);
1276
1277 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1278 {
1279         security_ops->req_classify_flow(req, fl);
1280 }
1281 EXPORT_SYMBOL(security_req_classify_flow);
1282
1283 void security_sock_graft(struct sock *sk, struct socket *parent)
1284 {
1285         security_ops->sock_graft(sk, parent);
1286 }
1287 EXPORT_SYMBOL(security_sock_graft);
1288
1289 int security_inet_conn_request(struct sock *sk,
1290                         struct sk_buff *skb, struct request_sock *req)
1291 {
1292         return security_ops->inet_conn_request(sk, skb, req);
1293 }
1294 EXPORT_SYMBOL(security_inet_conn_request);
1295
1296 void security_inet_csk_clone(struct sock *newsk,
1297                         const struct request_sock *req)
1298 {
1299         security_ops->inet_csk_clone(newsk, req);
1300 }
1301
1302 void security_inet_conn_established(struct sock *sk,
1303                         struct sk_buff *skb)
1304 {
1305         security_ops->inet_conn_established(sk, skb);
1306 }
1307
1308 int security_secmark_relabel_packet(u32 secid)
1309 {
1310         return security_ops->secmark_relabel_packet(secid);
1311 }
1312 EXPORT_SYMBOL(security_secmark_relabel_packet);
1313
1314 void security_secmark_refcount_inc(void)
1315 {
1316         security_ops->secmark_refcount_inc();
1317 }
1318 EXPORT_SYMBOL(security_secmark_refcount_inc);
1319
1320 void security_secmark_refcount_dec(void)
1321 {
1322         security_ops->secmark_refcount_dec();
1323 }
1324 EXPORT_SYMBOL(security_secmark_refcount_dec);
1325
1326 int security_tun_dev_alloc_security(void **security)
1327 {
1328         return security_ops->tun_dev_alloc_security(security);
1329 }
1330 EXPORT_SYMBOL(security_tun_dev_alloc_security);
1331
1332 void security_tun_dev_free_security(void *security)
1333 {
1334         security_ops->tun_dev_free_security(security);
1335 }
1336 EXPORT_SYMBOL(security_tun_dev_free_security);
1337
1338 int security_tun_dev_create(void)
1339 {
1340         return security_ops->tun_dev_create();
1341 }
1342 EXPORT_SYMBOL(security_tun_dev_create);
1343
1344 int security_tun_dev_attach_queue(void *security)
1345 {
1346         return security_ops->tun_dev_attach_queue(security);
1347 }
1348 EXPORT_SYMBOL(security_tun_dev_attach_queue);
1349
1350 int security_tun_dev_attach(struct sock *sk, void *security)
1351 {
1352         return security_ops->tun_dev_attach(sk, security);
1353 }
1354 EXPORT_SYMBOL(security_tun_dev_attach);
1355
1356 int security_tun_dev_open(void *security)
1357 {
1358         return security_ops->tun_dev_open(security);
1359 }
1360 EXPORT_SYMBOL(security_tun_dev_open);
1361
1362 void security_skb_owned_by(struct sk_buff *skb, struct sock *sk)
1363 {
1364         security_ops->skb_owned_by(skb, sk);
1365 }
1366
1367 #endif  /* CONFIG_SECURITY_NETWORK */
1368
1369 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1370
1371 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1372                                struct xfrm_user_sec_ctx *sec_ctx,
1373                                gfp_t gfp)
1374 {
1375         return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx, gfp);
1376 }
1377 EXPORT_SYMBOL(security_xfrm_policy_alloc);
1378
1379 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1380                               struct xfrm_sec_ctx **new_ctxp)
1381 {
1382         return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
1383 }
1384
1385 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1386 {
1387         security_ops->xfrm_policy_free_security(ctx);
1388 }
1389 EXPORT_SYMBOL(security_xfrm_policy_free);
1390
1391 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1392 {
1393         return security_ops->xfrm_policy_delete_security(ctx);
1394 }
1395
1396 int security_xfrm_state_alloc(struct xfrm_state *x,
1397                               struct xfrm_user_sec_ctx *sec_ctx)
1398 {
1399         return security_ops->xfrm_state_alloc(x, sec_ctx);
1400 }
1401 EXPORT_SYMBOL(security_xfrm_state_alloc);
1402
1403 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1404                                       struct xfrm_sec_ctx *polsec, u32 secid)
1405 {
1406         return security_ops->xfrm_state_alloc_acquire(x, polsec, secid);
1407 }
1408
1409 int security_xfrm_state_delete(struct xfrm_state *x)
1410 {
1411         return security_ops->xfrm_state_delete_security(x);
1412 }
1413 EXPORT_SYMBOL(security_xfrm_state_delete);
1414
1415 void security_xfrm_state_free(struct xfrm_state *x)
1416 {
1417         security_ops->xfrm_state_free_security(x);
1418 }
1419
1420 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1421 {
1422         return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
1423 }
1424
1425 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1426                                        struct xfrm_policy *xp,
1427                                        const struct flowi *fl)
1428 {
1429         return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
1430 }
1431
1432 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1433 {
1434         return security_ops->xfrm_decode_session(skb, secid, 1);
1435 }
1436
1437 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1438 {
1439         int rc = security_ops->xfrm_decode_session(skb, &fl->flowi_secid, 0);
1440
1441         BUG_ON(rc);
1442 }
1443 EXPORT_SYMBOL(security_skb_classify_flow);
1444
1445 #endif  /* CONFIG_SECURITY_NETWORK_XFRM */
1446
1447 #ifdef CONFIG_KEYS
1448
1449 int security_key_alloc(struct key *key, const struct cred *cred,
1450                        unsigned long flags)
1451 {
1452         return security_ops->key_alloc(key, cred, flags);
1453 }
1454
1455 void security_key_free(struct key *key)
1456 {
1457         security_ops->key_free(key);
1458 }
1459
1460 int security_key_permission(key_ref_t key_ref,
1461                             const struct cred *cred, unsigned perm)
1462 {
1463         return security_ops->key_permission(key_ref, cred, perm);
1464 }
1465
1466 int security_key_getsecurity(struct key *key, char **_buffer)
1467 {
1468         return security_ops->key_getsecurity(key, _buffer);
1469 }
1470
1471 #endif  /* CONFIG_KEYS */
1472
1473 #ifdef CONFIG_AUDIT
1474
1475 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1476 {
1477         return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
1478 }
1479
1480 int security_audit_rule_known(struct audit_krule *krule)
1481 {
1482         return security_ops->audit_rule_known(krule);
1483 }
1484
1485 void security_audit_rule_free(void *lsmrule)
1486 {
1487         security_ops->audit_rule_free(lsmrule);
1488 }
1489
1490 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1491                               struct audit_context *actx)
1492 {
1493         return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
1494 }
1495
1496 #endif /* CONFIG_AUDIT */