security/security.c

   1 /*
   2  * Security plug functions
   3  *
   4  * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
   5  * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com>
   6  * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
   7  *
   8  *      This program is free software; you can redistribute it and/or modify
   9  *      it under the terms of the GNU General Public License as published by
  10  *      the Free Software Foundation; either version 2 of the License, or
  11  *      (at your option) any later version.
  12  */
  13
  14 #include <linux/capability.h>
  15 #include <linux/dcache.h>
  16 #include <linux/module.h>
  17 #include <linux/init.h>
  18 #include <linux/kernel.h>
  19 #include <linux/lsm_hooks.h>
  20 #include <linux/integrity.h>
  21 #include <linux/ima.h>
  22 #include <linux/evm.h>
  23 #include <linux/fsnotify.h>
  24 #include <linux/mman.h>
  25 #include <linux/mount.h>
  26 #include <linux/personality.h>
  27 #include <linux/backing-dev.h>
  28 #include <net/flow.h>
  29
  30 #define MAX_LSM_EVM_XATTR       2
  31
  32 /* Maximum number of letters for an LSM name string */
  33 #define SECURITY_NAME_MAX       10
  34
  35 /* Boot-time LSM user choice */
  36 static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
  37         CONFIG_DEFAULT_SECURITY;
  38
  39 static void __init do_security_initcalls(void)
  40 {
  41         initcall_t *call;
  42         call = __security_initcall_start;
  43         while (call < __security_initcall_end) {
  44                 (*call) ();
  45                 call++;
  46         }
  47 }
  48
  49 /**
  50  * security_init - initializes the security framework
  51  *
  52  * This should be called early in the kernel initialization sequence.
  53  */
  54 int __init security_init(void)
  55 {
  56         pr_info("Security Framework initialized\n");
  57
  58         /*
  59          * Load minor LSMs, with the capability module always first.
  60          */
  61         capability_add_hooks();
  62         yama_add_hooks();
  63         loadpin_add_hooks();
  64
  65         /*
  66          * Load all the remaining security modules.
  67          */
  68         do_security_initcalls();
  69
  70         return 0;
  71 }
  72
  73 /* Save user chosen LSM */
  74 static int __init choose_lsm(char *str)
  75 {
  76         strncpy(chosen_lsm, str, SECURITY_NAME_MAX);
  77         return 1;
  78 }
  79 __setup("security=", choose_lsm);
  80
  81 /**
  82  * security_module_enable - Load given security module on boot ?
  83  * @module: the name of the module
  84  *
  85  * Each LSM must pass this method before registering its own operations
  86  * to avoid security registration races. This method may also be used
  87  * to check if your LSM is currently loaded during kernel initialization.
  88  *
  89  * Return true if:
  90  *      -The passed LSM is the one chosen by user at boot time,
  91  *      -or the passed LSM is configured as the default and the user did not
  92  *       choose an alternate LSM at boot time.
  93  * Otherwise, return false.
  94  */
  95 int __init security_module_enable(const char *module)
  96 {
  97         return !strcmp(module, chosen_lsm);
  98 }
  99
 100 /*
 101  * Hook list operation macros.
 102  *
 103  * call_void_hook:
 104  *      This is a hook that does not return a value.
 105  *
 106  * call_int_hook:
 107  *      This is a hook that returns a value.
 108  */
 109
 110 #define call_void_hook(FUNC, ...)                               \
 111         do {                                                    \
 112                 struct security_hook_list *P;                   \
 113                                                                 \
 114                 list_for_each_entry(P, &security_hook_heads.FUNC, list) \
 115                         P->hook.FUNC(__VA_ARGS__);              \
 116         } while (0)
 117
 118 #define call_int_hook(FUNC, IRC, ...) ({                        \
 119         int RC = IRC;                                           \
 120         do {                                                    \
 121                 struct security_hook_list *P;                   \
 122                                                                 \
 123                 list_for_each_entry(P, &security_hook_heads.FUNC, list) { \
 124                         RC = P->hook.FUNC(__VA_ARGS__);         \
 125                         if (RC != 0)                            \
 126                                 break;                          \
 127                 }                                               \
 128         } while (0);                                            \
 129         RC;                                                     \
 130 })
 131
 132 /* Security operations */
 133
 134 int security_binder_set_context_mgr(struct task_struct *mgr)
 135 {
 136         return call_int_hook(binder_set_context_mgr, 0, mgr);
 137 }
 138
 139 int security_binder_transaction(struct task_struct *from,
 140                                 struct task_struct *to)
 141 {
 142         return call_int_hook(binder_transaction, 0, from, to);
 143 }
 144
 145 int security_binder_transfer_binder(struct task_struct *from,
 146                                     struct task_struct *to)
 147 {
 148         return call_int_hook(binder_transfer_binder, 0, from, to);
 149 }
 150
 151 int security_binder_transfer_file(struct task_struct *from,
 152                                   struct task_struct *to, struct file *file)
 153 {
 154         return call_int_hook(binder_transfer_file, 0, from, to, file);
 155 }
 156
 157 int security_ptrace_access_check(struct task_struct *child, unsigned int mode)
 158 {
 159         return call_int_hook(ptrace_access_check, 0, child, mode);
 160 }
 161
 162 int security_ptrace_traceme(struct task_struct *parent)
 163 {
 164         return call_int_hook(ptrace_traceme, 0, parent);
 165 }
 166
 167 int security_capget(struct task_struct *target,
 168                      kernel_cap_t *effective,
 169                      kernel_cap_t *inheritable,
 170                      kernel_cap_t *permitted)
 171 {
 172         return call_int_hook(capget, 0, target,
 173                                 effective, inheritable, permitted);
 174 }
 175
 176 int security_capset(struct cred *new, const struct cred *old,
 177                     const kernel_cap_t *effective,
 178                     const kernel_cap_t *inheritable,
 179                     const kernel_cap_t *permitted)
 180 {
 181         return call_int_hook(capset, 0, new, old,
 182                                 effective, inheritable, permitted);
 183 }
 184
 185 int security_capable(const struct cred *cred, struct user_namespace *ns,
 186                      int cap)
 187 {
 188         return call_int_hook(capable, 0, cred, ns, cap, SECURITY_CAP_AUDIT);
 189 }
 190
 191 int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
 192                              int cap)
 193 {
 194         return call_int_hook(capable, 0, cred, ns, cap, SECURITY_CAP_NOAUDIT);
 195 }
 196
 197 int security_quotactl(int cmds, int type, int id, struct super_block *sb)
 198 {
 199         return call_int_hook(quotactl, 0, cmds, type, id, sb);
 200 }
 201
 202 int security_quota_on(struct dentry *dentry)
 203 {
 204         return call_int_hook(quota_on, 0, dentry);
 205 }
 206
 207 int security_syslog(int type)
 208 {
 209         return call_int_hook(syslog, 0, type);
 210 }
 211
 212 int security_settime64(const struct timespec64 *ts, const struct timezone *tz)
 213 {
 214         return call_int_hook(settime, 0, ts, tz);
 215 }
 216
 217 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
 218 {
 219         struct security_hook_list *hp;
 220         int cap_sys_admin = 1;
 221         int rc;
 222
 223         /*
 224          * The module will respond with a positive value if
 225          * it thinks the __vm_enough_memory() call should be
 226          * made with the cap_sys_admin set. If all of the modules
 227          * agree that it should be set it will. If any module
 228          * thinks it should not be set it won't.
 229          */
 230         list_for_each_entry(hp, &security_hook_heads.vm_enough_memory, list) {
 231                 rc = hp->hook.vm_enough_memory(mm, pages);
 232                 if (rc <= 0) {
 233                         cap_sys_admin = 0;
 234                         break;
 235                 }
 236         }
 237         return __vm_enough_memory(mm, pages, cap_sys_admin);
 238 }
 239
 240 int security_bprm_set_creds(struct linux_binprm *bprm)
 241 {
 242         return call_int_hook(bprm_set_creds, 0, bprm);
 243 }
 244
 245 int security_bprm_check(struct linux_binprm *bprm)
 246 {
 247         int ret;
 248
 249         ret = call_int_hook(bprm_check_security, 0, bprm);
 250         if (ret)
 251                 return ret;
 252         return ima_bprm_check(bprm);
 253 }
 254
 255 void security_bprm_committing_creds(struct linux_binprm *bprm)
 256 {
 257         call_void_hook(bprm_committing_creds, bprm);
 258 }
 259
 260 void security_bprm_committed_creds(struct linux_binprm *bprm)
 261 {
 262         call_void_hook(bprm_committed_creds, bprm);
 263 }
 264
 265 int security_bprm_secureexec(struct linux_binprm *bprm)
 266 {
 267         return call_int_hook(bprm_secureexec, 0, bprm);
 268 }
 269
 270 int security_sb_alloc(struct super_block *sb)
 271 {
 272         return call_int_hook(sb_alloc_security, 0, sb);
 273 }
 274
 275 void security_sb_free(struct super_block *sb)
 276 {
 277         call_void_hook(sb_free_security, sb);
 278 }
 279
 280 int security_sb_copy_data(char *orig, char *copy)
 281 {
 282         return call_int_hook(sb_copy_data, 0, orig, copy);
 283 }
 284 EXPORT_SYMBOL(security_sb_copy_data);
 285
 286 int security_sb_remount(struct super_block *sb, void *data)
 287 {
 288         return call_int_hook(sb_remount, 0, sb, data);
 289 }
 290
 291 int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
 292 {
 293         return call_int_hook(sb_kern_mount, 0, sb, flags, data);
 294 }
 295
 296 int security_sb_show_options(struct seq_file *m, struct super_block *sb)
 297 {
 298         return call_int_hook(sb_show_options, 0, m, sb);
 299 }
 300
 301 int security_sb_statfs(struct dentry *dentry)
 302 {
 303         return call_int_hook(sb_statfs, 0, dentry);
 304 }
 305
 306 int security_sb_mount(const char *dev_name, const struct path *path,
 307                        const char *type, unsigned long flags, void *data)
 308 {
 309         return call_int_hook(sb_mount, 0, dev_name, path, type, flags, data);
 310 }
 311
 312 int security_sb_umount(struct vfsmount *mnt, int flags)
 313 {
 314         return call_int_hook(sb_umount, 0, mnt, flags);
 315 }
 316
 317 int security_sb_pivotroot(const struct path *old_path, const struct path *new_path)
 318 {
 319         return call_int_hook(sb_pivotroot, 0, old_path, new_path);
 320 }
 321
 322 int security_sb_set_mnt_opts(struct super_block *sb,
 323                                 struct security_mnt_opts *opts,
 324                                 unsigned long kern_flags,
 325                                 unsigned long *set_kern_flags)
 326 {
 327         return call_int_hook(sb_set_mnt_opts,
 328                                 opts->num_mnt_opts ? -EOPNOTSUPP : 0, sb,
 329                                 opts, kern_flags, set_kern_flags);
 330 }
 331 EXPORT_SYMBOL(security_sb_set_mnt_opts);
 332
 333 int security_sb_clone_mnt_opts(const struct super_block *oldsb,
 334                                 struct super_block *newsb)
 335 {
 336         return call_int_hook(sb_clone_mnt_opts, 0, oldsb, newsb);
 337 }
 338 EXPORT_SYMBOL(security_sb_clone_mnt_opts);
 339
 340 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
 341 {
 342         return call_int_hook(sb_parse_opts_str, 0, options, opts);
 343 }
 344 EXPORT_SYMBOL(security_sb_parse_opts_str);
 345
 346 int security_inode_alloc(struct inode *inode)
 347 {
 348         inode->i_security = NULL;
 349         return call_int_hook(inode_alloc_security, 0, inode);
 350 }
 351
 352 void security_inode_free(struct inode *inode)
 353 {
 354         integrity_inode_free(inode);
 355         call_void_hook(inode_free_security, inode);
 356 }
 357
 358 int security_dentry_init_security(struct dentry *dentry, int mode,
 359                                         struct qstr *name, void **ctx,
 360                                         u32 *ctxlen)
 361 {
 362         return call_int_hook(dentry_init_security, -EOPNOTSUPP, dentry, mode,
 363                                 name, ctx, ctxlen);
 364 }
 365 EXPORT_SYMBOL(security_dentry_init_security);
 366
 367 int security_inode_init_security(struct inode *inode, struct inode *dir,
 368                                  const struct qstr *qstr,
 369                                  const initxattrs initxattrs, void *fs_data)
 370 {
 371         struct xattr new_xattrs[MAX_LSM_EVM_XATTR + 1];
 372         struct xattr *lsm_xattr, *evm_xattr, *xattr;
 373         int ret;
 374
 375         if (unlikely(IS_PRIVATE(inode)))
 376                 return 0;
 377
 378         if (!initxattrs)
 379                 return call_int_hook(inode_init_security, -EOPNOTSUPP, inode,
 380                                      dir, qstr, NULL, NULL, NULL);
 381         memset(new_xattrs, 0, sizeof(new_xattrs));
 382         lsm_xattr = new_xattrs;
 383         ret = call_int_hook(inode_init_security, -EOPNOTSUPP, inode, dir, qstr,
 384                                                 &lsm_xattr->name,
 385                                                 &lsm_xattr->value,
 386                                                 &lsm_xattr->value_len);
 387         if (ret)
 388                 goto out;
 389
 390         evm_xattr = lsm_xattr + 1;
 391         ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr);
 392         if (ret)
 393                 goto out;
 394         ret = initxattrs(inode, new_xattrs, fs_data);
 395 out:
 396         for (xattr = new_xattrs; xattr->value != NULL; xattr++)
 397                 kfree(xattr->value);
 398         return (ret == -EOPNOTSUPP) ? 0 : ret;
 399 }
 400 EXPORT_SYMBOL(security_inode_init_security);
 401
 402 int security_old_inode_init_security(struct inode *inode, struct inode *dir,
 403                                      const struct qstr *qstr, const char **name,
 404                                      void **value, size_t *len)
 405 {
 406         if (unlikely(IS_PRIVATE(inode)))
 407                 return -EOPNOTSUPP;
 408         return call_int_hook(inode_init_security, -EOPNOTSUPP, inode, dir,
 409                              qstr, name, value, len);
 410 }
 411 EXPORT_SYMBOL(security_old_inode_init_security);
 412
 413 #ifdef CONFIG_SECURITY_PATH
 414 int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
 415                         unsigned int dev)
 416 {
 417         if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
 418                 return 0;
 419         return call_int_hook(path_mknod, 0, dir, dentry, mode, dev);
 420 }
 421 EXPORT_SYMBOL(security_path_mknod);
 422
 423 int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode)
 424 {
 425         if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
 426                 return 0;
 427         return call_int_hook(path_mkdir, 0, dir, dentry, mode);
 428 }
 429 EXPORT_SYMBOL(security_path_mkdir);
 430
 431 int security_path_rmdir(const struct path *dir, struct dentry *dentry)
 432 {
 433         if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
 434                 return 0;
 435         return call_int_hook(path_rmdir, 0, dir, dentry);
 436 }
 437
 438 int security_path_unlink(const struct path *dir, struct dentry *dentry)
 439 {
 440         if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
 441                 return 0;
 442         return call_int_hook(path_unlink, 0, dir, dentry);
 443 }
 444 EXPORT_SYMBOL(security_path_unlink);
 445
 446 int security_path_symlink(const struct path *dir, struct dentry *dentry,
 447                           const char *old_name)
 448 {
 449         if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
 450                 return 0;
 451         return call_int_hook(path_symlink, 0, dir, dentry, old_name);
 452 }
 453
 454 int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
 455                        struct dentry *new_dentry)
 456 {
 457         if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry))))
 458                 return 0;
 459         return call_int_hook(path_link, 0, old_dentry, new_dir, new_dentry);
 460 }
 461
 462 int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
 463                          const struct path *new_dir, struct dentry *new_dentry,
 464                          unsigned int flags)
 465 {
 466         if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) ||
 467                      (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry)))))
 468                 return 0;
 469
 470         if (flags & RENAME_EXCHANGE) {
 471                 int err = call_int_hook(path_rename, 0, new_dir, new_dentry,
 472                                         old_dir, old_dentry);
 473                 if (err)
 474                         return err;
 475         }
 476
 477         return call_int_hook(path_rename, 0, old_dir, old_dentry, new_dir,
 478                                 new_dentry);
 479 }
 480 EXPORT_SYMBOL(security_path_rename);
 481
 482 int security_path_truncate(const struct path *path)
 483 {
 484         if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
 485                 return 0;
 486         return call_int_hook(path_truncate, 0, path);
 487 }
 488
 489 int security_path_chmod(const struct path *path, umode_t mode)
 490 {
 491         if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
 492                 return 0;
 493         return call_int_hook(path_chmod, 0, path, mode);
 494 }
 495
 496 int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
 497 {
 498         if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
 499                 return 0;
 500         return call_int_hook(path_chown, 0, path, uid, gid);
 501 }
 502
 503 int security_path_chroot(const struct path *path)
 504 {
 505         return call_int_hook(path_chroot, 0, path);
 506 }
 507 #endif
 508
 509 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode)
 510 {
 511         if (unlikely(IS_PRIVATE(dir)))
 512                 return 0;
 513         return call_int_hook(inode_create, 0, dir, dentry, mode);
 514 }
 515 EXPORT_SYMBOL_GPL(security_inode_create);
 516
 517 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
 518                          struct dentry *new_dentry)
 519 {
 520         if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry))))
 521                 return 0;
 522         return call_int_hook(inode_link, 0, old_dentry, dir, new_dentry);
 523 }
 524
 525 int security_inode_unlink(struct inode *dir, struct dentry *dentry)
 526 {
 527         if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 528                 return 0;
 529         return call_int_hook(inode_unlink, 0, dir, dentry);
 530 }
 531
 532 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
 533                             const char *old_name)
 534 {
 535         if (unlikely(IS_PRIVATE(dir)))
 536                 return 0;
 537         return call_int_hook(inode_symlink, 0, dir, dentry, old_name);
 538 }
 539
 540 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 541 {
 542         if (unlikely(IS_PRIVATE(dir)))
 543                 return 0;
 544         return call_int_hook(inode_mkdir, 0, dir, dentry, mode);
 545 }
 546 EXPORT_SYMBOL_GPL(security_inode_mkdir);
 547
 548 int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
 549 {
 550         if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 551                 return 0;
 552         return call_int_hook(inode_rmdir, 0, dir, dentry);
 553 }
 554
 555 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
 556 {
 557         if (unlikely(IS_PRIVATE(dir)))
 558                 return 0;
 559         return call_int_hook(inode_mknod, 0, dir, dentry, mode, dev);
 560 }
 561
 562 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
 563                            struct inode *new_dir, struct dentry *new_dentry,
 564                            unsigned int flags)
 565 {
 566         if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) ||
 567             (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry)))))
 568                 return 0;
 569
 570         if (flags & RENAME_EXCHANGE) {
 571                 int err = call_int_hook(inode_rename, 0, new_dir, new_dentry,
 572                                                      old_dir, old_dentry);
 573                 if (err)
 574                         return err;
 575         }
 576
 577         return call_int_hook(inode_rename, 0, old_dir, old_dentry,
 578                                            new_dir, new_dentry);
 579 }
 580
 581 int security_inode_readlink(struct dentry *dentry)
 582 {
 583         if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 584                 return 0;
 585         return call_int_hook(inode_readlink, 0, dentry);
 586 }
 587
 588 int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
 589                                bool rcu)
 590 {
 591         if (unlikely(IS_PRIVATE(inode)))
 592                 return 0;
 593         return call_int_hook(inode_follow_link, 0, dentry, inode, rcu);
 594 }
 595
 596 int security_inode_permission(struct inode *inode, int mask)
 597 {
 598         if (unlikely(IS_PRIVATE(inode)))
 599                 return 0;
 600         return call_int_hook(inode_permission, 0, inode, mask);
 601 }
 602
 603 int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
 604 {
 605         int ret;
 606
 607         if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 608                 return 0;
 609         ret = call_int_hook(inode_setattr, 0, dentry, attr);
 610         if (ret)
 611                 return ret;
 612         return evm_inode_setattr(dentry, attr);
 613 }
 614 EXPORT_SYMBOL_GPL(security_inode_setattr);
 615
 616 int security_inode_getattr(const struct path *path)
 617 {
 618         if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
 619                 return 0;
 620         return call_int_hook(inode_getattr, 0, path);
 621 }
 622
 623 int security_inode_setxattr(struct dentry *dentry, const char *name,
 624                             const void *value, size_t size, int flags)
 625 {
 626         int ret;
 627
 628         if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 629                 return 0;
 630         /*
 631          * SELinux and Smack integrate the cap call,
 632          * so assume that all LSMs supplying this call do so.
 633          */
 634         ret = call_int_hook(inode_setxattr, 1, dentry, name, value, size,
 635                                 flags);
 636
 637         if (ret == 1)
 638                 ret = cap_inode_setxattr(dentry, name, value, size, flags);
 639         if (ret)
 640                 return ret;
 641         ret = ima_inode_setxattr(dentry, name, value, size);
 642         if (ret)
 643                 return ret;
 644         return evm_inode_setxattr(dentry, name, value, size);
 645 }
 646
 647 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
 648                                   const void *value, size_t size, int flags)
 649 {
 650         if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 651                 return;
 652         call_void_hook(inode_post_setxattr, dentry, name, value, size, flags);
 653         evm_inode_post_setxattr(dentry, name, value, size);
 654 }
 655
 656 int security_inode_getxattr(struct dentry *dentry, const char *name)
 657 {
 658         if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 659                 return 0;
 660         return call_int_hook(inode_getxattr, 0, dentry, name);
 661 }
 662
 663 int security_inode_listxattr(struct dentry *dentry)
 664 {
 665         if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 666                 return 0;
 667         return call_int_hook(inode_listxattr, 0, dentry);
 668 }
 669
 670 int security_inode_removexattr(struct dentry *dentry, const char *name)
 671 {
 672         int ret;
 673
 674         if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
 675                 return 0;
 676         /*
 677          * SELinux and Smack integrate the cap call,
 678          * so assume that all LSMs supplying this call do so.
 679          */
 680         ret = call_int_hook(inode_removexattr, 1, dentry, name);
 681         if (ret == 1)
 682                 ret = cap_inode_removexattr(dentry, name);
 683         if (ret)
 684                 return ret;
 685         ret = ima_inode_removexattr(dentry, name);
 686         if (ret)
 687                 return ret;
 688         return evm_inode_removexattr(dentry, name);
 689 }
 690
 691 int security_inode_need_killpriv(struct dentry *dentry)
 692 {
 693         return call_int_hook(inode_need_killpriv, 0, dentry);
 694 }
 695
 696 int security_inode_killpriv(struct dentry *dentry)
 697 {
 698         return call_int_hook(inode_killpriv, 0, dentry);
 699 }
 700
 701 int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
 702 {
 703         if (unlikely(IS_PRIVATE(inode)))
 704                 return -EOPNOTSUPP;
 705         return call_int_hook(inode_getsecurity, -EOPNOTSUPP, inode, name,
 706                                 buffer, alloc);
 707 }
 708
 709 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
 710 {
 711         if (unlikely(IS_PRIVATE(inode)))
 712                 return -EOPNOTSUPP;
 713         return call_int_hook(inode_setsecurity, -EOPNOTSUPP, inode, name,
 714                                 value, size, flags);
 715 }
 716
 717 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
 718 {
 719         if (unlikely(IS_PRIVATE(inode)))
 720                 return 0;
 721         return call_int_hook(inode_listsecurity, 0, inode, buffer, buffer_size);
 722 }
 723 EXPORT_SYMBOL(security_inode_listsecurity);
 724
 725 void security_inode_getsecid(struct inode *inode, u32 *secid)
 726 {
 727         call_void_hook(inode_getsecid, inode, secid);
 728 }
 729
 730 int security_file_permission(struct file *file, int mask)
 731 {
 732         int ret;
 733
 734         ret = call_int_hook(file_permission, 0, file, mask);
 735         if (ret)
 736                 return ret;
 737
 738         return fsnotify_perm(file, mask);
 739 }
 740
 741 int security_file_alloc(struct file *file)
 742 {
 743         return call_int_hook(file_alloc_security, 0, file);
 744 }
 745
 746 void security_file_free(struct file *file)
 747 {
 748         call_void_hook(file_free_security, file);
 749 }
 750
 751 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 752 {
 753         return call_int_hook(file_ioctl, 0, file, cmd, arg);
 754 }
 755
 756 static inline unsigned long mmap_prot(struct file *file, unsigned long prot)
 757 {
 758         /*
 759          * Does we have PROT_READ and does the application expect
 760          * it to imply PROT_EXEC?  If not, nothing to talk about...
 761          */
 762         if ((prot & (PROT_READ | PROT_EXEC)) != PROT_READ)
 763                 return prot;
 764         if (!(current->personality & READ_IMPLIES_EXEC))
 765                 return prot;
 766         /*
 767          * if that's an anonymous mapping, let it.
 768          */
 769         if (!file)
 770                 return prot | PROT_EXEC;
 771         /*
 772          * ditto if it's not on noexec mount, except that on !MMU we need
 773          * NOMMU_MAP_EXEC (== VM_MAYEXEC) in this case
 774          */
 775         if (!path_noexec(&file->f_path)) {
 776 #ifndef CONFIG_MMU
 777                 if (file->f_op->mmap_capabilities) {
 778                         unsigned caps = file->f_op->mmap_capabilities(file);
 779                         if (!(caps & NOMMU_MAP_EXEC))
 780                                 return prot;
 781                 }
 782 #endif
 783                 return prot | PROT_EXEC;
 784         }
 785         /* anything on noexec mount won't get PROT_EXEC */
 786         return prot;
 787 }
 788
 789 int security_mmap_file(struct file *file, unsigned long prot,
 790                         unsigned long flags)
 791 {
 792         int ret;
 793         ret = call_int_hook(mmap_file, 0, file, prot,
 794                                         mmap_prot(file, prot), flags);
 795         if (ret)
 796                 return ret;
 797         return ima_file_mmap(file, prot);
 798 }
 799
 800 int security_mmap_addr(unsigned long addr)
 801 {
 802         return call_int_hook(mmap_addr, 0, addr);
 803 }
 804
 805 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
 806                             unsigned long prot)
 807 {
 808         return call_int_hook(file_mprotect, 0, vma, reqprot, prot);
 809 }
 810
 811 int security_file_lock(struct file *file, unsigned int cmd)
 812 {
 813         return call_int_hook(file_lock, 0, file, cmd);
 814 }
 815
 816 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
 817 {
 818         return call_int_hook(file_fcntl, 0, file, cmd, arg);
 819 }
 820
 821 void security_file_set_fowner(struct file *file)
 822 {
 823         call_void_hook(file_set_fowner, file);
 824 }
 825
 826 int security_file_send_sigiotask(struct task_struct *tsk,
 827                                   struct fown_struct *fown, int sig)
 828 {
 829         return call_int_hook(file_send_sigiotask, 0, tsk, fown, sig);
 830 }
 831
 832 int security_file_receive(struct file *file)
 833 {
 834         return call_int_hook(file_receive, 0, file);
 835 }
 836
 837 int security_file_open(struct file *file, const struct cred *cred)
 838 {
 839         int ret;
 840
 841         ret = call_int_hook(file_open, 0, file, cred);
 842         if (ret)
 843                 return ret;
 844
 845         return fsnotify_perm(file, MAY_OPEN);
 846 }
 847
 848 int security_task_create(unsigned long clone_flags)
 849 {
 850         return call_int_hook(task_create, 0, clone_flags);
 851 }
 852
 853 void security_task_free(struct task_struct *task)
 854 {
 855         call_void_hook(task_free, task);
 856 }
 857
 858 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
 859 {
 860         return call_int_hook(cred_alloc_blank, 0, cred, gfp);
 861 }
 862
 863 void security_cred_free(struct cred *cred)
 864 {
 865         call_void_hook(cred_free, cred);
 866 }
 867
 868 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
 869 {
 870         return call_int_hook(cred_prepare, 0, new, old, gfp);
 871 }
 872
 873 void security_transfer_creds(struct cred *new, const struct cred *old)
 874 {
 875         call_void_hook(cred_transfer, new, old);
 876 }
 877
 878 int security_kernel_act_as(struct cred *new, u32 secid)
 879 {
 880         return call_int_hook(kernel_act_as, 0, new, secid);
 881 }
 882
 883 int security_kernel_create_files_as(struct cred *new, struct inode *inode)
 884 {
 885         return call_int_hook(kernel_create_files_as, 0, new, inode);
 886 }
 887
 888 int security_kernel_module_request(char *kmod_name)
 889 {
 890         return call_int_hook(kernel_module_request, 0, kmod_name);
 891 }
 892
 893 int security_kernel_read_file(struct file *file, enum kernel_read_file_id id)
 894 {
 895         int ret;
 896
 897         ret = call_int_hook(kernel_read_file, 0, file, id);
 898         if (ret)
 899                 return ret;
 900         return ima_read_file(file, id);
 901 }
 902 EXPORT_SYMBOL_GPL(security_kernel_read_file);
 903
 904 int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
 905                                    enum kernel_read_file_id id)
 906 {
 907         int ret;
 908
 909         ret = call_int_hook(kernel_post_read_file, 0, file, buf, size, id);
 910         if (ret)
 911                 return ret;
 912         return ima_post_read_file(file, buf, size, id);
 913 }
 914 EXPORT_SYMBOL_GPL(security_kernel_post_read_file);
 915
 916 int security_task_fix_setuid(struct cred *new, const struct cred *old,
 917                              int flags)
 918 {
 919         return call_int_hook(task_fix_setuid, 0, new, old, flags);
 920 }
 921
 922 int security_task_setpgid(struct task_struct *p, pid_t pgid)
 923 {
 924         return call_int_hook(task_setpgid, 0, p, pgid);
 925 }
 926
 927 int security_task_getpgid(struct task_struct *p)
 928 {
 929         return call_int_hook(task_getpgid, 0, p);
 930 }
 931
 932 int security_task_getsid(struct task_struct *p)
 933 {
 934         return call_int_hook(task_getsid, 0, p);
 935 }
 936
 937 void security_task_getsecid(struct task_struct *p, u32 *secid)
 938 {
 939         *secid = 0;
 940         call_void_hook(task_getsecid, p, secid);
 941 }
 942 EXPORT_SYMBOL(security_task_getsecid);
 943
 944 int security_task_setnice(struct task_struct *p, int nice)
 945 {
 946         return call_int_hook(task_setnice, 0, p, nice);
 947 }
 948
 949 int security_task_setioprio(struct task_struct *p, int ioprio)
 950 {
 951         return call_int_hook(task_setioprio, 0, p, ioprio);
 952 }
 953
 954 int security_task_getioprio(struct task_struct *p)
 955 {
 956         return call_int_hook(task_getioprio, 0, p);
 957 }
 958
 959 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
 960                 struct rlimit *new_rlim)
 961 {
 962         return call_int_hook(task_setrlimit, 0, p, resource, new_rlim);
 963 }
 964
 965 int security_task_setscheduler(struct task_struct *p)
 966 {
 967         return call_int_hook(task_setscheduler, 0, p);
 968 }
 969
 970 int security_task_getscheduler(struct task_struct *p)
 971 {
 972         return call_int_hook(task_getscheduler, 0, p);
 973 }
 974
 975 int security_task_movememory(struct task_struct *p)
 976 {
 977         return call_int_hook(task_movememory, 0, p);
 978 }
 979
 980 int security_task_kill(struct task_struct *p, struct siginfo *info,
 981                         int sig, u32 secid)
 982 {
 983         return call_int_hook(task_kill, 0, p, info, sig, secid);
 984 }
 985
 986 int security_task_wait(struct task_struct *p)
 987 {
 988         return call_int_hook(task_wait, 0, p);
 989 }
 990
 991 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
 992                          unsigned long arg4, unsigned long arg5)
 993 {
 994         int thisrc;
 995         int rc = -ENOSYS;
 996         struct security_hook_list *hp;
 997
 998         list_for_each_entry(hp, &security_hook_heads.task_prctl, list) {
 999                 thisrc = hp->hook.task_prctl(option, arg2, arg3, arg4, arg5);
1000                 if (thisrc != -ENOSYS) {
1001                         rc = thisrc;
1002                         if (thisrc != 0)
1003                                 break;
1004                 }
1005         }
1006         return rc;
1007 }
1008
1009 void security_task_to_inode(struct task_struct *p, struct inode *inode)
1010 {
1011         call_void_hook(task_to_inode, p, inode);
1012 }
1013
1014 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
1015 {
1016         return call_int_hook(ipc_permission, 0, ipcp, flag);
1017 }
1018
1019 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
1020 {
1021         *secid = 0;
1022         call_void_hook(ipc_getsecid, ipcp, secid);
1023 }
1024
1025 int security_msg_msg_alloc(struct msg_msg *msg)
1026 {
1027         return call_int_hook(msg_msg_alloc_security, 0, msg);
1028 }
1029
1030 void security_msg_msg_free(struct msg_msg *msg)
1031 {
1032         call_void_hook(msg_msg_free_security, msg);
1033 }
1034
1035 int security_msg_queue_alloc(struct msg_queue *msq)
1036 {
1037         return call_int_hook(msg_queue_alloc_security, 0, msq);
1038 }
1039
1040 void security_msg_queue_free(struct msg_queue *msq)
1041 {
1042         call_void_hook(msg_queue_free_security, msq);
1043 }
1044
1045 int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
1046 {
1047         return call_int_hook(msg_queue_associate, 0, msq, msqflg);
1048 }
1049
1050 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
1051 {
1052         return call_int_hook(msg_queue_msgctl, 0, msq, cmd);
1053 }
1054
1055 int security_msg_queue_msgsnd(struct msg_queue *msq,
1056                                struct msg_msg *msg, int msqflg)
1057 {
1058         return call_int_hook(msg_queue_msgsnd, 0, msq, msg, msqflg);
1059 }
1060
1061 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
1062                                struct task_struct *target, long type, int mode)
1063 {
1064         return call_int_hook(msg_queue_msgrcv, 0, msq, msg, target, type, mode);
1065 }
1066
1067 int security_shm_alloc(struct shmid_kernel *shp)
1068 {
1069         return call_int_hook(shm_alloc_security, 0, shp);
1070 }
1071
1072 void security_shm_free(struct shmid_kernel *shp)
1073 {
1074         call_void_hook(shm_free_security, shp);
1075 }
1076
1077 int security_shm_associate(struct shmid_kernel *shp, int shmflg)
1078 {
1079         return call_int_hook(shm_associate, 0, shp, shmflg);
1080 }
1081
1082 int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
1083 {
1084         return call_int_hook(shm_shmctl, 0, shp, cmd);
1085 }
1086
1087 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
1088 {
1089         return call_int_hook(shm_shmat, 0, shp, shmaddr, shmflg);
1090 }
1091
1092 int security_sem_alloc(struct sem_array *sma)
1093 {
1094         return call_int_hook(sem_alloc_security, 0, sma);
1095 }
1096
1097 void security_sem_free(struct sem_array *sma)
1098 {
1099         call_void_hook(sem_free_security, sma);
1100 }
1101
1102 int security_sem_associate(struct sem_array *sma, int semflg)
1103 {
1104         return call_int_hook(sem_associate, 0, sma, semflg);
1105 }
1106
1107 int security_sem_semctl(struct sem_array *sma, int cmd)
1108 {
1109         return call_int_hook(sem_semctl, 0, sma, cmd);
1110 }
1111
1112 int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1113                         unsigned nsops, int alter)
1114 {
1115         return call_int_hook(sem_semop, 0, sma, sops, nsops, alter);
1116 }
1117
1118 void security_d_instantiate(struct dentry *dentry, struct inode *inode)
1119 {
1120         if (unlikely(inode && IS_PRIVATE(inode)))
1121                 return;
1122         call_void_hook(d_instantiate, dentry, inode);
1123 }
1124 EXPORT_SYMBOL(security_d_instantiate);
1125
1126 int security_getprocattr(struct task_struct *p, char *name, char **value)
1127 {
1128         return call_int_hook(getprocattr, -EINVAL, p, name, value);
1129 }
1130
1131 int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
1132 {
1133         return call_int_hook(setprocattr, -EINVAL, p, name, value, size);
1134 }
1135
1136 int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1137 {
1138         return call_int_hook(netlink_send, 0, sk, skb);
1139 }
1140
1141 int security_ismaclabel(const char *name)
1142 {
1143         return call_int_hook(ismaclabel, 0, name);
1144 }
1145 EXPORT_SYMBOL(security_ismaclabel);
1146
1147 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1148 {
1149         return call_int_hook(secid_to_secctx, -EOPNOTSUPP, secid, secdata,
1150                                 seclen);
1151 }
1152 EXPORT_SYMBOL(security_secid_to_secctx);
1153
1154 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
1155 {
1156         *secid = 0;
1157         return call_int_hook(secctx_to_secid, 0, secdata, seclen, secid);
1158 }
1159 EXPORT_SYMBOL(security_secctx_to_secid);
1160
1161 void security_release_secctx(char *secdata, u32 seclen)
1162 {
1163         call_void_hook(release_secctx, secdata, seclen);
1164 }
1165 EXPORT_SYMBOL(security_release_secctx);
1166
1167 void security_inode_invalidate_secctx(struct inode *inode)
1168 {
1169         call_void_hook(inode_invalidate_secctx, inode);
1170 }
1171 EXPORT_SYMBOL(security_inode_invalidate_secctx);
1172
1173 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1174 {
1175         return call_int_hook(inode_notifysecctx, 0, inode, ctx, ctxlen);
1176 }
1177 EXPORT_SYMBOL(security_inode_notifysecctx);
1178
1179 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1180 {
1181         return call_int_hook(inode_setsecctx, 0, dentry, ctx, ctxlen);
1182 }
1183 EXPORT_SYMBOL(security_inode_setsecctx);
1184
1185 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1186 {
1187         return call_int_hook(inode_getsecctx, -EOPNOTSUPP, inode, ctx, ctxlen);
1188 }
1189 EXPORT_SYMBOL(security_inode_getsecctx);
1190
1191 #ifdef CONFIG_SECURITY_NETWORK
1192
1193 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk)
1194 {
1195         return call_int_hook(unix_stream_connect, 0, sock, other, newsk);
1196 }
1197 EXPORT_SYMBOL(security_unix_stream_connect);
1198
1199 int security_unix_may_send(struct socket *sock,  struct socket *other)
1200 {
1201         return call_int_hook(unix_may_send, 0, sock, other);
1202 }
1203 EXPORT_SYMBOL(security_unix_may_send);
1204
1205 int security_socket_create(int family, int type, int protocol, int kern)
1206 {
1207         return call_int_hook(socket_create, 0, family, type, protocol, kern);
1208 }
1209
1210 int security_socket_post_create(struct socket *sock, int family,
1211                                 int type, int protocol, int kern)
1212 {
1213         return call_int_hook(socket_post_create, 0, sock, family, type,
1214                                                 protocol, kern);
1215 }
1216
1217 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
1218 {
1219         return call_int_hook(socket_bind, 0, sock, address, addrlen);
1220 }
1221
1222 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
1223 {
1224         return call_int_hook(socket_connect, 0, sock, address, addrlen);
1225 }
1226
1227 int security_socket_listen(struct socket *sock, int backlog)
1228 {
1229         return call_int_hook(socket_listen, 0, sock, backlog);
1230 }
1231
1232 int security_socket_accept(struct socket *sock, struct socket *newsock)
1233 {
1234         return call_int_hook(socket_accept, 0, sock, newsock);
1235 }
1236
1237 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1238 {
1239         return call_int_hook(socket_sendmsg, 0, sock, msg, size);
1240 }
1241
1242 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1243                             int size, int flags)
1244 {
1245         return call_int_hook(socket_recvmsg, 0, sock, msg, size, flags);
1246 }
1247
1248 int security_socket_getsockname(struct socket *sock)
1249 {
1250         return call_int_hook(socket_getsockname, 0, sock);
1251 }
1252
1253 int security_socket_getpeername(struct socket *sock)
1254 {
1255         return call_int_hook(socket_getpeername, 0, sock);
1256 }
1257
1258 int security_socket_getsockopt(struct socket *sock, int level, int optname)
1259 {
1260         return call_int_hook(socket_getsockopt, 0, sock, level, optname);
1261 }
1262
1263 int security_socket_setsockopt(struct socket *sock, int level, int optname)
1264 {
1265         return call_int_hook(socket_setsockopt, 0, sock, level, optname);
1266 }
1267
1268 int security_socket_shutdown(struct socket *sock, int how)
1269 {
1270         return call_int_hook(socket_shutdown, 0, sock, how);
1271 }
1272
1273 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1274 {
1275         return call_int_hook(socket_sock_rcv_skb, 0, sk, skb);
1276 }
1277 EXPORT_SYMBOL(security_sock_rcv_skb);
1278
1279 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1280                                       int __user *optlen, unsigned len)
1281 {
1282         return call_int_hook(socket_getpeersec_stream, -ENOPROTOOPT, sock,
1283                                 optval, optlen, len);
1284 }
1285
1286 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1287 {
1288         return call_int_hook(socket_getpeersec_dgram, -ENOPROTOOPT, sock,
1289                              skb, secid);
1290 }
1291 EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1292
1293 int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1294 {
1295         return call_int_hook(sk_alloc_security, 0, sk, family, priority);
1296 }
1297
1298 void security_sk_free(struct sock *sk)
1299 {
1300         call_void_hook(sk_free_security, sk);
1301 }
1302
1303 void security_sk_clone(const struct sock *sk, struct sock *newsk)
1304 {
1305         call_void_hook(sk_clone_security, sk, newsk);
1306 }
1307 EXPORT_SYMBOL(security_sk_clone);
1308
1309 void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1310 {
1311         call_void_hook(sk_getsecid, sk, &fl->flowi_secid);
1312 }
1313 EXPORT_SYMBOL(security_sk_classify_flow);
1314
1315 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1316 {
1317         call_void_hook(req_classify_flow, req, fl);
1318 }
1319 EXPORT_SYMBOL(security_req_classify_flow);
1320
1321 void security_sock_graft(struct sock *sk, struct socket *parent)
1322 {
1323         call_void_hook(sock_graft, sk, parent);
1324 }
1325 EXPORT_SYMBOL(security_sock_graft);
1326
1327 int security_inet_conn_request(struct sock *sk,
1328                         struct sk_buff *skb, struct request_sock *req)
1329 {
1330         return call_int_hook(inet_conn_request, 0, sk, skb, req);
1331 }
1332 EXPORT_SYMBOL(security_inet_conn_request);
1333
1334 void security_inet_csk_clone(struct sock *newsk,
1335                         const struct request_sock *req)
1336 {
1337         call_void_hook(inet_csk_clone, newsk, req);
1338 }
1339
1340 void security_inet_conn_established(struct sock *sk,
1341                         struct sk_buff *skb)
1342 {
1343         call_void_hook(inet_conn_established, sk, skb);
1344 }
1345
1346 int security_secmark_relabel_packet(u32 secid)
1347 {
1348         return call_int_hook(secmark_relabel_packet, 0, secid);
1349 }
1350 EXPORT_SYMBOL(security_secmark_relabel_packet);
1351
1352 void security_secmark_refcount_inc(void)
1353 {
1354         call_void_hook(secmark_refcount_inc);
1355 }
1356 EXPORT_SYMBOL(security_secmark_refcount_inc);
1357
1358 void security_secmark_refcount_dec(void)
1359 {
1360         call_void_hook(secmark_refcount_dec);
1361 }
1362 EXPORT_SYMBOL(security_secmark_refcount_dec);
1363
1364 int security_tun_dev_alloc_security(void **security)
1365 {
1366         return call_int_hook(tun_dev_alloc_security, 0, security);
1367 }
1368 EXPORT_SYMBOL(security_tun_dev_alloc_security);
1369
1370 void security_tun_dev_free_security(void *security)
1371 {
1372         call_void_hook(tun_dev_free_security, security);
1373 }
1374 EXPORT_SYMBOL(security_tun_dev_free_security);
1375
1376 int security_tun_dev_create(void)
1377 {
1378         return call_int_hook(tun_dev_create, 0);
1379 }
1380 EXPORT_SYMBOL(security_tun_dev_create);
1381
1382 int security_tun_dev_attach_queue(void *security)
1383 {
1384         return call_int_hook(tun_dev_attach_queue, 0, security);
1385 }
1386 EXPORT_SYMBOL(security_tun_dev_attach_queue);
1387
1388 int security_tun_dev_attach(struct sock *sk, void *security)
1389 {
1390         return call_int_hook(tun_dev_attach, 0, sk, security);
1391 }
1392 EXPORT_SYMBOL(security_tun_dev_attach);
1393
1394 int security_tun_dev_open(void *security)
1395 {
1396         return call_int_hook(tun_dev_open, 0, security);
1397 }
1398 EXPORT_SYMBOL(security_tun_dev_open);
1399
1400 #endif  /* CONFIG_SECURITY_NETWORK */
1401
1402 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1403
1404 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1405                                struct xfrm_user_sec_ctx *sec_ctx,
1406                                gfp_t gfp)
1407 {
1408         return call_int_hook(xfrm_policy_alloc_security, 0, ctxp, sec_ctx, gfp);
1409 }
1410 EXPORT_SYMBOL(security_xfrm_policy_alloc);
1411
1412 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1413                               struct xfrm_sec_ctx **new_ctxp)
1414 {
1415         return call_int_hook(xfrm_policy_clone_security, 0, old_ctx, new_ctxp);
1416 }
1417
1418 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1419 {
1420         call_void_hook(xfrm_policy_free_security, ctx);
1421 }
1422 EXPORT_SYMBOL(security_xfrm_policy_free);
1423
1424 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1425 {
1426         return call_int_hook(xfrm_policy_delete_security, 0, ctx);
1427 }
1428
1429 int security_xfrm_state_alloc(struct xfrm_state *x,
1430                               struct xfrm_user_sec_ctx *sec_ctx)
1431 {
1432         return call_int_hook(xfrm_state_alloc, 0, x, sec_ctx);
1433 }
1434 EXPORT_SYMBOL(security_xfrm_state_alloc);
1435
1436 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1437                                       struct xfrm_sec_ctx *polsec, u32 secid)
1438 {
1439         return call_int_hook(xfrm_state_alloc_acquire, 0, x, polsec, secid);
1440 }
1441
1442 int security_xfrm_state_delete(struct xfrm_state *x)
1443 {
1444         return call_int_hook(xfrm_state_delete_security, 0, x);
1445 }
1446 EXPORT_SYMBOL(security_xfrm_state_delete);
1447
1448 void security_xfrm_state_free(struct xfrm_state *x)
1449 {
1450         call_void_hook(xfrm_state_free_security, x);
1451 }
1452
1453 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1454 {
1455         return call_int_hook(xfrm_policy_lookup, 0, ctx, fl_secid, dir);
1456 }
1457
1458 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1459                                        struct xfrm_policy *xp,
1460                                        const struct flowi *fl)
1461 {
1462         struct security_hook_list *hp;
1463         int rc = 1;
1464
1465         /*
1466          * Since this function is expected to return 0 or 1, the judgment
1467          * becomes difficult if multiple LSMs supply this call. Fortunately,
1468          * we can use the first LSM's judgment because currently only SELinux
1469          * supplies this call.
1470          *
1471          * For speed optimization, we explicitly break the loop rather than
1472          * using the macro
1473          */
1474         list_for_each_entry(hp, &security_hook_heads.xfrm_state_pol_flow_match,
1475                                 list) {
1476                 rc = hp->hook.xfrm_state_pol_flow_match(x, xp, fl);
1477                 break;
1478         }
1479         return rc;
1480 }
1481
1482 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1483 {
1484         return call_int_hook(xfrm_decode_session, 0, skb, secid, 1);
1485 }
1486
1487 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1488 {
1489         int rc = call_int_hook(xfrm_decode_session, 0, skb, &fl->flowi_secid,
1490                                 0);
1491
1492         BUG_ON(rc);
1493 }
1494 EXPORT_SYMBOL(security_skb_classify_flow);
1495
1496 #endif  /* CONFIG_SECURITY_NETWORK_XFRM */
1497
1498 #ifdef CONFIG_KEYS
1499
1500 int security_key_alloc(struct key *key, const struct cred *cred,
1501                        unsigned long flags)
1502 {
1503         return call_int_hook(key_alloc, 0, key, cred, flags);
1504 }
1505
1506 void security_key_free(struct key *key)
1507 {
1508         call_void_hook(key_free, key);
1509 }
1510
1511 int security_key_permission(key_ref_t key_ref,
1512                             const struct cred *cred, unsigned perm)
1513 {
1514         return call_int_hook(key_permission, 0, key_ref, cred, perm);
1515 }
1516
1517 int security_key_getsecurity(struct key *key, char **_buffer)
1518 {
1519         *_buffer = NULL;
1520         return call_int_hook(key_getsecurity, 0, key, _buffer);
1521 }
1522
1523 #endif  /* CONFIG_KEYS */
1524
1525 #ifdef CONFIG_AUDIT
1526
1527 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1528 {
1529         return call_int_hook(audit_rule_init, 0, field, op, rulestr, lsmrule);
1530 }
1531
1532 int security_audit_rule_known(struct audit_krule *krule)
1533 {
1534         return call_int_hook(audit_rule_known, 0, krule);
1535 }
1536
1537 void security_audit_rule_free(void *lsmrule)
1538 {
1539         call_void_hook(audit_rule_free, lsmrule);
1540 }
1541
1542 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1543                               struct audit_context *actx)
1544 {
1545         return call_int_hook(audit_rule_match, 0, secid, field, op, lsmrule,
1546                                 actx);
1547 }
1548 #endif /* CONFIG_AUDIT */
1549
1550 struct security_hook_heads security_hook_heads = {
1551         .binder_set_context_mgr =
1552                 LIST_HEAD_INIT(security_hook_heads.binder_set_context_mgr),
1553         .binder_transaction =
1554                 LIST_HEAD_INIT(security_hook_heads.binder_transaction),
1555         .binder_transfer_binder =
1556                 LIST_HEAD_INIT(security_hook_heads.binder_transfer_binder),
1557         .binder_transfer_file =
1558                 LIST_HEAD_INIT(security_hook_heads.binder_transfer_file),
1559
1560         .ptrace_access_check =
1561                 LIST_HEAD_INIT(security_hook_heads.ptrace_access_check),
1562         .ptrace_traceme =
1563                 LIST_HEAD_INIT(security_hook_heads.ptrace_traceme),
1564         .capget =       LIST_HEAD_INIT(security_hook_heads.capget),
1565         .capset =       LIST_HEAD_INIT(security_hook_heads.capset),
1566         .capable =      LIST_HEAD_INIT(security_hook_heads.capable),
1567         .quotactl =     LIST_HEAD_INIT(security_hook_heads.quotactl),
1568         .quota_on =     LIST_HEAD_INIT(security_hook_heads.quota_on),
1569         .syslog =       LIST_HEAD_INIT(security_hook_heads.syslog),
1570         .settime =      LIST_HEAD_INIT(security_hook_heads.settime),
1571         .vm_enough_memory =
1572                 LIST_HEAD_INIT(security_hook_heads.vm_enough_memory),
1573         .bprm_set_creds =
1574                 LIST_HEAD_INIT(security_hook_heads.bprm_set_creds),
1575         .bprm_check_security =
1576                 LIST_HEAD_INIT(security_hook_heads.bprm_check_security),
1577         .bprm_secureexec =
1578                 LIST_HEAD_INIT(security_hook_heads.bprm_secureexec),
1579         .bprm_committing_creds =
1580                 LIST_HEAD_INIT(security_hook_heads.bprm_committing_creds),
1581         .bprm_committed_creds =
1582                 LIST_HEAD_INIT(security_hook_heads.bprm_committed_creds),
1583         .sb_alloc_security =
1584                 LIST_HEAD_INIT(security_hook_heads.sb_alloc_security),
1585         .sb_free_security =
1586                 LIST_HEAD_INIT(security_hook_heads.sb_free_security),
1587         .sb_copy_data = LIST_HEAD_INIT(security_hook_heads.sb_copy_data),
1588         .sb_remount =   LIST_HEAD_INIT(security_hook_heads.sb_remount),
1589         .sb_kern_mount =
1590                 LIST_HEAD_INIT(security_hook_heads.sb_kern_mount),
1591         .sb_show_options =
1592                 LIST_HEAD_INIT(security_hook_heads.sb_show_options),
1593         .sb_statfs =    LIST_HEAD_INIT(security_hook_heads.sb_statfs),
1594         .sb_mount =     LIST_HEAD_INIT(security_hook_heads.sb_mount),
1595         .sb_umount =    LIST_HEAD_INIT(security_hook_heads.sb_umount),
1596         .sb_pivotroot = LIST_HEAD_INIT(security_hook_heads.sb_pivotroot),
1597         .sb_set_mnt_opts =
1598                 LIST_HEAD_INIT(security_hook_heads.sb_set_mnt_opts),
1599         .sb_clone_mnt_opts =
1600                 LIST_HEAD_INIT(security_hook_heads.sb_clone_mnt_opts),
1601         .sb_parse_opts_str =
1602                 LIST_HEAD_INIT(security_hook_heads.sb_parse_opts_str),
1603         .dentry_init_security =
1604                 LIST_HEAD_INIT(security_hook_heads.dentry_init_security),
1605 #ifdef CONFIG_SECURITY_PATH
1606         .path_unlink =  LIST_HEAD_INIT(security_hook_heads.path_unlink),
1607         .path_mkdir =   LIST_HEAD_INIT(security_hook_heads.path_mkdir),
1608         .path_rmdir =   LIST_HEAD_INIT(security_hook_heads.path_rmdir),
1609         .path_mknod =   LIST_HEAD_INIT(security_hook_heads.path_mknod),
1610         .path_truncate =
1611                 LIST_HEAD_INIT(security_hook_heads.path_truncate),
1612         .path_symlink = LIST_HEAD_INIT(security_hook_heads.path_symlink),
1613         .path_link =    LIST_HEAD_INIT(security_hook_heads.path_link),
1614         .path_rename =  LIST_HEAD_INIT(security_hook_heads.path_rename),
1615         .path_chmod =   LIST_HEAD_INIT(security_hook_heads.path_chmod),
1616         .path_chown =   LIST_HEAD_INIT(security_hook_heads.path_chown),
1617         .path_chroot =  LIST_HEAD_INIT(security_hook_heads.path_chroot),
1618 #endif
1619         .inode_alloc_security =
1620                 LIST_HEAD_INIT(security_hook_heads.inode_alloc_security),
1621         .inode_free_security =
1622                 LIST_HEAD_INIT(security_hook_heads.inode_free_security),
1623         .inode_init_security =
1624                 LIST_HEAD_INIT(security_hook_heads.inode_init_security),
1625         .inode_create = LIST_HEAD_INIT(security_hook_heads.inode_create),
1626         .inode_link =   LIST_HEAD_INIT(security_hook_heads.inode_link),
1627         .inode_unlink = LIST_HEAD_INIT(security_hook_heads.inode_unlink),
1628         .inode_symlink =
1629                 LIST_HEAD_INIT(security_hook_heads.inode_symlink),
1630         .inode_mkdir =  LIST_HEAD_INIT(security_hook_heads.inode_mkdir),
1631         .inode_rmdir =  LIST_HEAD_INIT(security_hook_heads.inode_rmdir),
1632         .inode_mknod =  LIST_HEAD_INIT(security_hook_heads.inode_mknod),
1633         .inode_rename = LIST_HEAD_INIT(security_hook_heads.inode_rename),
1634         .inode_readlink =
1635                 LIST_HEAD_INIT(security_hook_heads.inode_readlink),
1636         .inode_follow_link =
1637                 LIST_HEAD_INIT(security_hook_heads.inode_follow_link),
1638         .inode_permission =
1639                 LIST_HEAD_INIT(security_hook_heads.inode_permission),
1640         .inode_setattr =
1641                 LIST_HEAD_INIT(security_hook_heads.inode_setattr),
1642         .inode_getattr =
1643                 LIST_HEAD_INIT(security_hook_heads.inode_getattr),
1644         .inode_setxattr =
1645                 LIST_HEAD_INIT(security_hook_heads.inode_setxattr),
1646         .inode_post_setxattr =
1647                 LIST_HEAD_INIT(security_hook_heads.inode_post_setxattr),
1648         .inode_getxattr =
1649                 LIST_HEAD_INIT(security_hook_heads.inode_getxattr),
1650         .inode_listxattr =
1651                 LIST_HEAD_INIT(security_hook_heads.inode_listxattr),
1652         .inode_removexattr =
1653                 LIST_HEAD_INIT(security_hook_heads.inode_removexattr),
1654         .inode_need_killpriv =
1655                 LIST_HEAD_INIT(security_hook_heads.inode_need_killpriv),
1656         .inode_killpriv =
1657                 LIST_HEAD_INIT(security_hook_heads.inode_killpriv),
1658         .inode_getsecurity =
1659                 LIST_HEAD_INIT(security_hook_heads.inode_getsecurity),
1660         .inode_setsecurity =
1661                 LIST_HEAD_INIT(security_hook_heads.inode_setsecurity),
1662         .inode_listsecurity =
1663                 LIST_HEAD_INIT(security_hook_heads.inode_listsecurity),
1664         .inode_getsecid =
1665                 LIST_HEAD_INIT(security_hook_heads.inode_getsecid),
1666         .file_permission =
1667                 LIST_HEAD_INIT(security_hook_heads.file_permission),
1668         .file_alloc_security =
1669                 LIST_HEAD_INIT(security_hook_heads.file_alloc_security),
1670         .file_free_security =
1671                 LIST_HEAD_INIT(security_hook_heads.file_free_security),
1672         .file_ioctl =   LIST_HEAD_INIT(security_hook_heads.file_ioctl),
1673         .mmap_addr =    LIST_HEAD_INIT(security_hook_heads.mmap_addr),
1674         .mmap_file =    LIST_HEAD_INIT(security_hook_heads.mmap_file),
1675         .file_mprotect =
1676                 LIST_HEAD_INIT(security_hook_heads.file_mprotect),
1677         .file_lock =    LIST_HEAD_INIT(security_hook_heads.file_lock),
1678         .file_fcntl =   LIST_HEAD_INIT(security_hook_heads.file_fcntl),
1679         .file_set_fowner =
1680                 LIST_HEAD_INIT(security_hook_heads.file_set_fowner),
1681         .file_send_sigiotask =
1682                 LIST_HEAD_INIT(security_hook_heads.file_send_sigiotask),
1683         .file_receive = LIST_HEAD_INIT(security_hook_heads.file_receive),
1684         .file_open =    LIST_HEAD_INIT(security_hook_heads.file_open),
1685         .task_create =  LIST_HEAD_INIT(security_hook_heads.task_create),
1686         .task_free =    LIST_HEAD_INIT(security_hook_heads.task_free),
1687         .cred_alloc_blank =
1688                 LIST_HEAD_INIT(security_hook_heads.cred_alloc_blank),
1689         .cred_free =    LIST_HEAD_INIT(security_hook_heads.cred_free),
1690         .cred_prepare = LIST_HEAD_INIT(security_hook_heads.cred_prepare),
1691         .cred_transfer =
1692                 LIST_HEAD_INIT(security_hook_heads.cred_transfer),
1693         .kernel_act_as =
1694                 LIST_HEAD_INIT(security_hook_heads.kernel_act_as),
1695         .kernel_create_files_as =
1696                 LIST_HEAD_INIT(security_hook_heads.kernel_create_files_as),
1697         .kernel_module_request =
1698                 LIST_HEAD_INIT(security_hook_heads.kernel_module_request),
1699         .kernel_read_file =
1700                 LIST_HEAD_INIT(security_hook_heads.kernel_read_file),
1701         .kernel_post_read_file =
1702                 LIST_HEAD_INIT(security_hook_heads.kernel_post_read_file),
1703         .task_fix_setuid =
1704                 LIST_HEAD_INIT(security_hook_heads.task_fix_setuid),
1705         .task_setpgid = LIST_HEAD_INIT(security_hook_heads.task_setpgid),
1706         .task_getpgid = LIST_HEAD_INIT(security_hook_heads.task_getpgid),
1707         .task_getsid =  LIST_HEAD_INIT(security_hook_heads.task_getsid),
1708         .task_getsecid =
1709                 LIST_HEAD_INIT(security_hook_heads.task_getsecid),
1710         .task_setnice = LIST_HEAD_INIT(security_hook_heads.task_setnice),
1711         .task_setioprio =
1712                 LIST_HEAD_INIT(security_hook_heads.task_setioprio),
1713         .task_getioprio =
1714                 LIST_HEAD_INIT(security_hook_heads.task_getioprio),
1715         .task_setrlimit =
1716                 LIST_HEAD_INIT(security_hook_heads.task_setrlimit),
1717         .task_setscheduler =
1718                 LIST_HEAD_INIT(security_hook_heads.task_setscheduler),
1719         .task_getscheduler =
1720                 LIST_HEAD_INIT(security_hook_heads.task_getscheduler),
1721         .task_movememory =
1722                 LIST_HEAD_INIT(security_hook_heads.task_movememory),
1723         .task_kill =    LIST_HEAD_INIT(security_hook_heads.task_kill),
1724         .task_wait =    LIST_HEAD_INIT(security_hook_heads.task_wait),
1725         .task_prctl =   LIST_HEAD_INIT(security_hook_heads.task_prctl),
1726         .task_to_inode =
1727                 LIST_HEAD_INIT(security_hook_heads.task_to_inode),
1728         .ipc_permission =
1729                 LIST_HEAD_INIT(security_hook_heads.ipc_permission),
1730         .ipc_getsecid = LIST_HEAD_INIT(security_hook_heads.ipc_getsecid),
1731         .msg_msg_alloc_security =
1732                 LIST_HEAD_INIT(security_hook_heads.msg_msg_alloc_security),
1733         .msg_msg_free_security =
1734                 LIST_HEAD_INIT(security_hook_heads.msg_msg_free_security),
1735         .msg_queue_alloc_security =
1736                 LIST_HEAD_INIT(security_hook_heads.msg_queue_alloc_security),
1737         .msg_queue_free_security =
1738                 LIST_HEAD_INIT(security_hook_heads.msg_queue_free_security),
1739         .msg_queue_associate =
1740                 LIST_HEAD_INIT(security_hook_heads.msg_queue_associate),
1741         .msg_queue_msgctl =
1742                 LIST_HEAD_INIT(security_hook_heads.msg_queue_msgctl),
1743         .msg_queue_msgsnd =
1744                 LIST_HEAD_INIT(security_hook_heads.msg_queue_msgsnd),
1745         .msg_queue_msgrcv =
1746                 LIST_HEAD_INIT(security_hook_heads.msg_queue_msgrcv),
1747         .shm_alloc_security =
1748                 LIST_HEAD_INIT(security_hook_heads.shm_alloc_security),
1749         .shm_free_security =
1750                 LIST_HEAD_INIT(security_hook_heads.shm_free_security),
1751         .shm_associate =
1752                 LIST_HEAD_INIT(security_hook_heads.shm_associate),
1753         .shm_shmctl =   LIST_HEAD_INIT(security_hook_heads.shm_shmctl),
1754         .shm_shmat =    LIST_HEAD_INIT(security_hook_heads.shm_shmat),
1755         .sem_alloc_security =
1756                 LIST_HEAD_INIT(security_hook_heads.sem_alloc_security),
1757         .sem_free_security =
1758                 LIST_HEAD_INIT(security_hook_heads.sem_free_security),
1759         .sem_associate =
1760                 LIST_HEAD_INIT(security_hook_heads.sem_associate),
1761         .sem_semctl =   LIST_HEAD_INIT(security_hook_heads.sem_semctl),
1762         .sem_semop =    LIST_HEAD_INIT(security_hook_heads.sem_semop),
1763         .netlink_send = LIST_HEAD_INIT(security_hook_heads.netlink_send),
1764         .d_instantiate =
1765                 LIST_HEAD_INIT(security_hook_heads.d_instantiate),
1766         .getprocattr =  LIST_HEAD_INIT(security_hook_heads.getprocattr),
1767         .setprocattr =  LIST_HEAD_INIT(security_hook_heads.setprocattr),
1768         .ismaclabel =   LIST_HEAD_INIT(security_hook_heads.ismaclabel),
1769         .secid_to_secctx =
1770                 LIST_HEAD_INIT(security_hook_heads.secid_to_secctx),
1771         .secctx_to_secid =
1772                 LIST_HEAD_INIT(security_hook_heads.secctx_to_secid),
1773         .release_secctx =
1774                 LIST_HEAD_INIT(security_hook_heads.release_secctx),
1775         .inode_invalidate_secctx =
1776                 LIST_HEAD_INIT(security_hook_heads.inode_invalidate_secctx),
1777         .inode_notifysecctx =
1778                 LIST_HEAD_INIT(security_hook_heads.inode_notifysecctx),
1779         .inode_setsecctx =
1780                 LIST_HEAD_INIT(security_hook_heads.inode_setsecctx),
1781         .inode_getsecctx =
1782                 LIST_HEAD_INIT(security_hook_heads.inode_getsecctx),
1783 #ifdef CONFIG_SECURITY_NETWORK
1784         .unix_stream_connect =
1785                 LIST_HEAD_INIT(security_hook_heads.unix_stream_connect),
1786         .unix_may_send =
1787                 LIST_HEAD_INIT(security_hook_heads.unix_may_send),
1788         .socket_create =
1789                 LIST_HEAD_INIT(security_hook_heads.socket_create),
1790         .socket_post_create =
1791                 LIST_HEAD_INIT(security_hook_heads.socket_post_create),
1792         .socket_bind =  LIST_HEAD_INIT(security_hook_heads.socket_bind),
1793         .socket_connect =
1794                 LIST_HEAD_INIT(security_hook_heads.socket_connect),
1795         .socket_listen =
1796                 LIST_HEAD_INIT(security_hook_heads.socket_listen),
1797         .socket_accept =
1798                 LIST_HEAD_INIT(security_hook_heads.socket_accept),
1799         .socket_sendmsg =
1800                 LIST_HEAD_INIT(security_hook_heads.socket_sendmsg),
1801         .socket_recvmsg =
1802                 LIST_HEAD_INIT(security_hook_heads.socket_recvmsg),
1803         .socket_getsockname =
1804                 LIST_HEAD_INIT(security_hook_heads.socket_getsockname),
1805         .socket_getpeername =
1806                 LIST_HEAD_INIT(security_hook_heads.socket_getpeername),
1807         .socket_getsockopt =
1808                 LIST_HEAD_INIT(security_hook_heads.socket_getsockopt),
1809         .socket_setsockopt =
1810                 LIST_HEAD_INIT(security_hook_heads.socket_setsockopt),
1811         .socket_shutdown =
1812                 LIST_HEAD_INIT(security_hook_heads.socket_shutdown),
1813         .socket_sock_rcv_skb =
1814                 LIST_HEAD_INIT(security_hook_heads.socket_sock_rcv_skb),
1815         .socket_getpeersec_stream =
1816                 LIST_HEAD_INIT(security_hook_heads.socket_getpeersec_stream),
1817         .socket_getpeersec_dgram =
1818                 LIST_HEAD_INIT(security_hook_heads.socket_getpeersec_dgram),
1819         .sk_alloc_security =
1820                 LIST_HEAD_INIT(security_hook_heads.sk_alloc_security),
1821         .sk_free_security =
1822                 LIST_HEAD_INIT(security_hook_heads.sk_free_security),
1823         .sk_clone_security =
1824                 LIST_HEAD_INIT(security_hook_heads.sk_clone_security),
1825         .sk_getsecid =  LIST_HEAD_INIT(security_hook_heads.sk_getsecid),
1826         .sock_graft =   LIST_HEAD_INIT(security_hook_heads.sock_graft),
1827         .inet_conn_request =
1828                 LIST_HEAD_INIT(security_hook_heads.inet_conn_request),
1829         .inet_csk_clone =
1830                 LIST_HEAD_INIT(security_hook_heads.inet_csk_clone),
1831         .inet_conn_established =
1832                 LIST_HEAD_INIT(security_hook_heads.inet_conn_established),
1833         .secmark_relabel_packet =
1834                 LIST_HEAD_INIT(security_hook_heads.secmark_relabel_packet),
1835         .secmark_refcount_inc =
1836                 LIST_HEAD_INIT(security_hook_heads.secmark_refcount_inc),
1837         .secmark_refcount_dec =
1838                 LIST_HEAD_INIT(security_hook_heads.secmark_refcount_dec),
1839         .req_classify_flow =
1840                 LIST_HEAD_INIT(security_hook_heads.req_classify_flow),
1841         .tun_dev_alloc_security =
1842                 LIST_HEAD_INIT(security_hook_heads.tun_dev_alloc_security),
1843         .tun_dev_free_security =
1844                 LIST_HEAD_INIT(security_hook_heads.tun_dev_free_security),
1845         .tun_dev_create =
1846                 LIST_HEAD_INIT(security_hook_heads.tun_dev_create),
1847         .tun_dev_attach_queue =
1848                 LIST_HEAD_INIT(security_hook_heads.tun_dev_attach_queue),
1849         .tun_dev_attach =
1850                 LIST_HEAD_INIT(security_hook_heads.tun_dev_attach),
1851         .tun_dev_open = LIST_HEAD_INIT(security_hook_heads.tun_dev_open),
1852 #endif  /* CONFIG_SECURITY_NETWORK */
1853 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1854         .xfrm_policy_alloc_security =
1855                 LIST_HEAD_INIT(security_hook_heads.xfrm_policy_alloc_security),
1856         .xfrm_policy_clone_security =
1857                 LIST_HEAD_INIT(security_hook_heads.xfrm_policy_clone_security),
1858         .xfrm_policy_free_security =
1859                 LIST_HEAD_INIT(security_hook_heads.xfrm_policy_free_security),
1860         .xfrm_policy_delete_security =
1861                 LIST_HEAD_INIT(security_hook_heads.xfrm_policy_delete_security),
1862         .xfrm_state_alloc =
1863                 LIST_HEAD_INIT(security_hook_heads.xfrm_state_alloc),
1864         .xfrm_state_alloc_acquire =
1865                 LIST_HEAD_INIT(security_hook_heads.xfrm_state_alloc_acquire),
1866         .xfrm_state_free_security =
1867                 LIST_HEAD_INIT(security_hook_heads.xfrm_state_free_security),
1868         .xfrm_state_delete_security =
1869                 LIST_HEAD_INIT(security_hook_heads.xfrm_state_delete_security),
1870         .xfrm_policy_lookup =
1871                 LIST_HEAD_INIT(security_hook_heads.xfrm_policy_lookup),
1872         .xfrm_state_pol_flow_match =
1873                 LIST_HEAD_INIT(security_hook_heads.xfrm_state_pol_flow_match),
1874         .xfrm_decode_session =
1875                 LIST_HEAD_INIT(security_hook_heads.xfrm_decode_session),
1876 #endif  /* CONFIG_SECURITY_NETWORK_XFRM */
1877 #ifdef CONFIG_KEYS
1878         .key_alloc =    LIST_HEAD_INIT(security_hook_heads.key_alloc),
1879         .key_free =     LIST_HEAD_INIT(security_hook_heads.key_free),
1880         .key_permission =
1881                 LIST_HEAD_INIT(security_hook_heads.key_permission),
1882         .key_getsecurity =
1883                 LIST_HEAD_INIT(security_hook_heads.key_getsecurity),
1884 #endif  /* CONFIG_KEYS */
1885 #ifdef CONFIG_AUDIT
1886         .audit_rule_init =
1887                 LIST_HEAD_INIT(security_hook_heads.audit_rule_init),
1888         .audit_rule_known =
1889                 LIST_HEAD_INIT(security_hook_heads.audit_rule_known),
1890         .audit_rule_match =
1891                 LIST_HEAD_INIT(security_hook_heads.audit_rule_match),
1892         .audit_rule_free =
1893                 LIST_HEAD_INIT(security_hook_heads.audit_rule_free),
1894 #endif /* CONFIG_AUDIT */
1895 };