security.c 56 KB

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