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