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