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