security.c 32 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/module.h>
  15. #include <linux/init.h>
  16. #include <linux/kernel.h>
  17. #include <linux/security.h>
  18. #include <linux/ima.h>
  19. /* Boot-time LSM user choice */
  20. static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
  21. CONFIG_DEFAULT_SECURITY;
  22. /* things that live in capability.c */
  23. extern void __init security_fixup_ops(struct security_operations *ops);
  24. static struct security_operations *security_ops;
  25. static struct security_operations default_security_ops = {
  26. .name = "default",
  27. };
  28. static inline int __init verify(struct security_operations *ops)
  29. {
  30. /* verify the security_operations structure exists */
  31. if (!ops)
  32. return -EINVAL;
  33. security_fixup_ops(ops);
  34. return 0;
  35. }
  36. static void __init do_security_initcalls(void)
  37. {
  38. initcall_t *call;
  39. call = __security_initcall_start;
  40. while (call < __security_initcall_end) {
  41. (*call) ();
  42. call++;
  43. }
  44. }
  45. /**
  46. * security_init - initializes the security framework
  47. *
  48. * This should be called early in the kernel initialization sequence.
  49. */
  50. int __init security_init(void)
  51. {
  52. printk(KERN_INFO "Security Framework initialized\n");
  53. security_fixup_ops(&default_security_ops);
  54. security_ops = &default_security_ops;
  55. do_security_initcalls();
  56. return 0;
  57. }
  58. void reset_security_ops(void)
  59. {
  60. security_ops = &default_security_ops;
  61. }
  62. /* Save user chosen LSM */
  63. static int __init choose_lsm(char *str)
  64. {
  65. strncpy(chosen_lsm, str, SECURITY_NAME_MAX);
  66. return 1;
  67. }
  68. __setup("security=", choose_lsm);
  69. /**
  70. * security_module_enable - Load given security module on boot ?
  71. * @ops: a pointer to the struct security_operations that is to be checked.
  72. *
  73. * Each LSM must pass this method before registering its own operations
  74. * to avoid security registration races. This method may also be used
  75. * to check if your LSM is currently loaded during kernel initialization.
  76. *
  77. * Return true if:
  78. * -The passed LSM is the one chosen by user at boot time,
  79. * -or the passed LSM is configured as the default and the user did not
  80. * choose an alternate LSM at boot time.
  81. * Otherwise, return false.
  82. */
  83. int __init security_module_enable(struct security_operations *ops)
  84. {
  85. return !strcmp(ops->name, chosen_lsm);
  86. }
  87. /**
  88. * register_security - registers a security framework with the kernel
  89. * @ops: a pointer to the struct security_options that is to be registered
  90. *
  91. * This function allows a security module to register itself with the
  92. * kernel security subsystem. Some rudimentary checking is done on the @ops
  93. * value passed to this function. You'll need to check first if your LSM
  94. * is allowed to register its @ops by calling security_module_enable(@ops).
  95. *
  96. * If there is already a security module registered with the kernel,
  97. * an error will be returned. Otherwise %0 is returned on success.
  98. */
  99. int __init register_security(struct security_operations *ops)
  100. {
  101. if (verify(ops)) {
  102. printk(KERN_DEBUG "%s could not verify "
  103. "security_operations structure.\n", __func__);
  104. return -EINVAL;
  105. }
  106. if (security_ops != &default_security_ops)
  107. return -EAGAIN;
  108. security_ops = ops;
  109. return 0;
  110. }
  111. /* Security operations */
  112. int security_ptrace_access_check(struct task_struct *child, unsigned int mode)
  113. {
  114. return security_ops->ptrace_access_check(child, mode);
  115. }
  116. int security_ptrace_traceme(struct task_struct *parent)
  117. {
  118. return security_ops->ptrace_traceme(parent);
  119. }
  120. int security_capget(struct task_struct *target,
  121. kernel_cap_t *effective,
  122. kernel_cap_t *inheritable,
  123. kernel_cap_t *permitted)
  124. {
  125. return security_ops->capget(target, effective, inheritable, permitted);
  126. }
  127. int security_capset(struct cred *new, const struct cred *old,
  128. const kernel_cap_t *effective,
  129. const kernel_cap_t *inheritable,
  130. const kernel_cap_t *permitted)
  131. {
  132. return security_ops->capset(new, old,
  133. effective, inheritable, permitted);
  134. }
  135. int security_capable(int cap)
  136. {
  137. return security_ops->capable(current, current_cred(), cap,
  138. SECURITY_CAP_AUDIT);
  139. }
  140. int security_real_capable(struct task_struct *tsk, int cap)
  141. {
  142. const struct cred *cred;
  143. int ret;
  144. cred = get_task_cred(tsk);
  145. ret = security_ops->capable(tsk, cred, cap, SECURITY_CAP_AUDIT);
  146. put_cred(cred);
  147. return ret;
  148. }
  149. int security_real_capable_noaudit(struct task_struct *tsk, int cap)
  150. {
  151. const struct cred *cred;
  152. int ret;
  153. cred = get_task_cred(tsk);
  154. ret = security_ops->capable(tsk, cred, cap, SECURITY_CAP_NOAUDIT);
  155. put_cred(cred);
  156. return ret;
  157. }
  158. int security_sysctl(struct ctl_table *table, int op)
  159. {
  160. return security_ops->sysctl(table, op);
  161. }
  162. int security_quotactl(int cmds, int type, int id, struct super_block *sb)
  163. {
  164. return security_ops->quotactl(cmds, type, id, sb);
  165. }
  166. int security_quota_on(struct dentry *dentry)
  167. {
  168. return security_ops->quota_on(dentry);
  169. }
  170. int security_syslog(int type)
  171. {
  172. return security_ops->syslog(type);
  173. }
  174. int security_settime(struct timespec *ts, struct timezone *tz)
  175. {
  176. return security_ops->settime(ts, tz);
  177. }
  178. int security_vm_enough_memory(long pages)
  179. {
  180. WARN_ON(current->mm == NULL);
  181. return security_ops->vm_enough_memory(current->mm, pages);
  182. }
  183. int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
  184. {
  185. WARN_ON(mm == NULL);
  186. return security_ops->vm_enough_memory(mm, pages);
  187. }
  188. int security_vm_enough_memory_kern(long pages)
  189. {
  190. /* If current->mm is a kernel thread then we will pass NULL,
  191. for this specific case that is fine */
  192. return security_ops->vm_enough_memory(current->mm, pages);
  193. }
  194. int security_bprm_set_creds(struct linux_binprm *bprm)
  195. {
  196. return security_ops->bprm_set_creds(bprm);
  197. }
  198. int security_bprm_check(struct linux_binprm *bprm)
  199. {
  200. int ret;
  201. ret = security_ops->bprm_check_security(bprm);
  202. if (ret)
  203. return ret;
  204. return ima_bprm_check(bprm);
  205. }
  206. void security_bprm_committing_creds(struct linux_binprm *bprm)
  207. {
  208. security_ops->bprm_committing_creds(bprm);
  209. }
  210. void security_bprm_committed_creds(struct linux_binprm *bprm)
  211. {
  212. security_ops->bprm_committed_creds(bprm);
  213. }
  214. int security_bprm_secureexec(struct linux_binprm *bprm)
  215. {
  216. return security_ops->bprm_secureexec(bprm);
  217. }
  218. int security_sb_alloc(struct super_block *sb)
  219. {
  220. return security_ops->sb_alloc_security(sb);
  221. }
  222. void security_sb_free(struct super_block *sb)
  223. {
  224. security_ops->sb_free_security(sb);
  225. }
  226. int security_sb_copy_data(char *orig, char *copy)
  227. {
  228. return security_ops->sb_copy_data(orig, copy);
  229. }
  230. EXPORT_SYMBOL(security_sb_copy_data);
  231. int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
  232. {
  233. return security_ops->sb_kern_mount(sb, flags, data);
  234. }
  235. int security_sb_show_options(struct seq_file *m, struct super_block *sb)
  236. {
  237. return security_ops->sb_show_options(m, sb);
  238. }
  239. int security_sb_statfs(struct dentry *dentry)
  240. {
  241. return security_ops->sb_statfs(dentry);
  242. }
  243. int security_sb_mount(char *dev_name, struct path *path,
  244. char *type, unsigned long flags, void *data)
  245. {
  246. return security_ops->sb_mount(dev_name, path, type, flags, data);
  247. }
  248. int security_sb_umount(struct vfsmount *mnt, int flags)
  249. {
  250. return security_ops->sb_umount(mnt, flags);
  251. }
  252. int security_sb_pivotroot(struct path *old_path, struct path *new_path)
  253. {
  254. return security_ops->sb_pivotroot(old_path, new_path);
  255. }
  256. int security_sb_set_mnt_opts(struct super_block *sb,
  257. struct security_mnt_opts *opts)
  258. {
  259. return security_ops->sb_set_mnt_opts(sb, opts);
  260. }
  261. EXPORT_SYMBOL(security_sb_set_mnt_opts);
  262. void security_sb_clone_mnt_opts(const struct super_block *oldsb,
  263. struct super_block *newsb)
  264. {
  265. security_ops->sb_clone_mnt_opts(oldsb, newsb);
  266. }
  267. EXPORT_SYMBOL(security_sb_clone_mnt_opts);
  268. int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
  269. {
  270. return security_ops->sb_parse_opts_str(options, opts);
  271. }
  272. EXPORT_SYMBOL(security_sb_parse_opts_str);
  273. int security_inode_alloc(struct inode *inode)
  274. {
  275. inode->i_security = NULL;
  276. return security_ops->inode_alloc_security(inode);
  277. }
  278. void security_inode_free(struct inode *inode)
  279. {
  280. ima_inode_free(inode);
  281. security_ops->inode_free_security(inode);
  282. }
  283. int security_inode_init_security(struct inode *inode, struct inode *dir,
  284. char **name, void **value, size_t *len)
  285. {
  286. if (unlikely(IS_PRIVATE(inode)))
  287. return -EOPNOTSUPP;
  288. return security_ops->inode_init_security(inode, dir, name, value, len);
  289. }
  290. EXPORT_SYMBOL(security_inode_init_security);
  291. #ifdef CONFIG_SECURITY_PATH
  292. int security_path_mknod(struct path *dir, struct dentry *dentry, int mode,
  293. unsigned int dev)
  294. {
  295. if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
  296. return 0;
  297. return security_ops->path_mknod(dir, dentry, mode, dev);
  298. }
  299. EXPORT_SYMBOL(security_path_mknod);
  300. int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode)
  301. {
  302. if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
  303. return 0;
  304. return security_ops->path_mkdir(dir, dentry, mode);
  305. }
  306. int security_path_rmdir(struct path *dir, struct dentry *dentry)
  307. {
  308. if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
  309. return 0;
  310. return security_ops->path_rmdir(dir, dentry);
  311. }
  312. int security_path_unlink(struct path *dir, struct dentry *dentry)
  313. {
  314. if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
  315. return 0;
  316. return security_ops->path_unlink(dir, dentry);
  317. }
  318. int security_path_symlink(struct path *dir, struct dentry *dentry,
  319. const char *old_name)
  320. {
  321. if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
  322. return 0;
  323. return security_ops->path_symlink(dir, dentry, old_name);
  324. }
  325. int security_path_link(struct dentry *old_dentry, struct path *new_dir,
  326. struct dentry *new_dentry)
  327. {
  328. if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
  329. return 0;
  330. return security_ops->path_link(old_dentry, new_dir, new_dentry);
  331. }
  332. int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
  333. struct path *new_dir, struct dentry *new_dentry)
  334. {
  335. if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
  336. (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
  337. return 0;
  338. return security_ops->path_rename(old_dir, old_dentry, new_dir,
  339. new_dentry);
  340. }
  341. int security_path_truncate(struct path *path)
  342. {
  343. if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
  344. return 0;
  345. return security_ops->path_truncate(path);
  346. }
  347. int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
  348. mode_t mode)
  349. {
  350. if (unlikely(IS_PRIVATE(dentry->d_inode)))
  351. return 0;
  352. return security_ops->path_chmod(dentry, mnt, mode);
  353. }
  354. int security_path_chown(struct path *path, uid_t uid, gid_t gid)
  355. {
  356. if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
  357. return 0;
  358. return security_ops->path_chown(path, uid, gid);
  359. }
  360. int security_path_chroot(struct path *path)
  361. {
  362. return security_ops->path_chroot(path);
  363. }
  364. #endif
  365. int security_inode_create(struct inode *dir, struct dentry *dentry, int mode)
  366. {
  367. if (unlikely(IS_PRIVATE(dir)))
  368. return 0;
  369. return security_ops->inode_create(dir, dentry, mode);
  370. }
  371. EXPORT_SYMBOL_GPL(security_inode_create);
  372. int security_inode_link(struct dentry *old_dentry, struct inode *dir,
  373. struct dentry *new_dentry)
  374. {
  375. if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
  376. return 0;
  377. return security_ops->inode_link(old_dentry, dir, new_dentry);
  378. }
  379. int security_inode_unlink(struct inode *dir, struct dentry *dentry)
  380. {
  381. if (unlikely(IS_PRIVATE(dentry->d_inode)))
  382. return 0;
  383. return security_ops->inode_unlink(dir, dentry);
  384. }
  385. int security_inode_symlink(struct inode *dir, struct dentry *dentry,
  386. const char *old_name)
  387. {
  388. if (unlikely(IS_PRIVATE(dir)))
  389. return 0;
  390. return security_ops->inode_symlink(dir, dentry, old_name);
  391. }
  392. int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode)
  393. {
  394. if (unlikely(IS_PRIVATE(dir)))
  395. return 0;
  396. return security_ops->inode_mkdir(dir, dentry, mode);
  397. }
  398. EXPORT_SYMBOL_GPL(security_inode_mkdir);
  399. int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
  400. {
  401. if (unlikely(IS_PRIVATE(dentry->d_inode)))
  402. return 0;
  403. return security_ops->inode_rmdir(dir, dentry);
  404. }
  405. int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
  406. {
  407. if (unlikely(IS_PRIVATE(dir)))
  408. return 0;
  409. return security_ops->inode_mknod(dir, dentry, mode, dev);
  410. }
  411. int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
  412. struct inode *new_dir, struct dentry *new_dentry)
  413. {
  414. if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
  415. (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
  416. return 0;
  417. return security_ops->inode_rename(old_dir, old_dentry,
  418. new_dir, new_dentry);
  419. }
  420. int security_inode_readlink(struct dentry *dentry)
  421. {
  422. if (unlikely(IS_PRIVATE(dentry->d_inode)))
  423. return 0;
  424. return security_ops->inode_readlink(dentry);
  425. }
  426. int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
  427. {
  428. if (unlikely(IS_PRIVATE(dentry->d_inode)))
  429. return 0;
  430. return security_ops->inode_follow_link(dentry, nd);
  431. }
  432. int security_inode_permission(struct inode *inode, int mask)
  433. {
  434. if (unlikely(IS_PRIVATE(inode)))
  435. return 0;
  436. return security_ops->inode_permission(inode, mask);
  437. }
  438. int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
  439. {
  440. if (unlikely(IS_PRIVATE(dentry->d_inode)))
  441. return 0;
  442. return security_ops->inode_setattr(dentry, attr);
  443. }
  444. EXPORT_SYMBOL_GPL(security_inode_setattr);
  445. int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
  446. {
  447. if (unlikely(IS_PRIVATE(dentry->d_inode)))
  448. return 0;
  449. return security_ops->inode_getattr(mnt, dentry);
  450. }
  451. int security_inode_setxattr(struct dentry *dentry, const char *name,
  452. const void *value, size_t size, int flags)
  453. {
  454. if (unlikely(IS_PRIVATE(dentry->d_inode)))
  455. return 0;
  456. return security_ops->inode_setxattr(dentry, name, value, size, flags);
  457. }
  458. void security_inode_post_setxattr(struct dentry *dentry, const char *name,
  459. const void *value, size_t size, int flags)
  460. {
  461. if (unlikely(IS_PRIVATE(dentry->d_inode)))
  462. return;
  463. security_ops->inode_post_setxattr(dentry, name, value, size, flags);
  464. }
  465. int security_inode_getxattr(struct dentry *dentry, const char *name)
  466. {
  467. if (unlikely(IS_PRIVATE(dentry->d_inode)))
  468. return 0;
  469. return security_ops->inode_getxattr(dentry, name);
  470. }
  471. int security_inode_listxattr(struct dentry *dentry)
  472. {
  473. if (unlikely(IS_PRIVATE(dentry->d_inode)))
  474. return 0;
  475. return security_ops->inode_listxattr(dentry);
  476. }
  477. int security_inode_removexattr(struct dentry *dentry, const char *name)
  478. {
  479. if (unlikely(IS_PRIVATE(dentry->d_inode)))
  480. return 0;
  481. return security_ops->inode_removexattr(dentry, name);
  482. }
  483. int security_inode_need_killpriv(struct dentry *dentry)
  484. {
  485. return security_ops->inode_need_killpriv(dentry);
  486. }
  487. int security_inode_killpriv(struct dentry *dentry)
  488. {
  489. return security_ops->inode_killpriv(dentry);
  490. }
  491. int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
  492. {
  493. if (unlikely(IS_PRIVATE(inode)))
  494. return -EOPNOTSUPP;
  495. return security_ops->inode_getsecurity(inode, name, buffer, alloc);
  496. }
  497. int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
  498. {
  499. if (unlikely(IS_PRIVATE(inode)))
  500. return -EOPNOTSUPP;
  501. return security_ops->inode_setsecurity(inode, name, value, size, flags);
  502. }
  503. int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
  504. {
  505. if (unlikely(IS_PRIVATE(inode)))
  506. return 0;
  507. return security_ops->inode_listsecurity(inode, buffer, buffer_size);
  508. }
  509. void security_inode_getsecid(const struct inode *inode, u32 *secid)
  510. {
  511. security_ops->inode_getsecid(inode, secid);
  512. }
  513. int security_file_permission(struct file *file, int mask)
  514. {
  515. int ret;
  516. ret = security_ops->file_permission(file, mask);
  517. if (ret)
  518. return ret;
  519. return fsnotify_perm(file, mask);
  520. }
  521. int security_file_alloc(struct file *file)
  522. {
  523. return security_ops->file_alloc_security(file);
  524. }
  525. void security_file_free(struct file *file)
  526. {
  527. security_ops->file_free_security(file);
  528. }
  529. int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
  530. {
  531. return security_ops->file_ioctl(file, cmd, arg);
  532. }
  533. int security_file_mmap(struct file *file, unsigned long reqprot,
  534. unsigned long prot, unsigned long flags,
  535. unsigned long addr, unsigned long addr_only)
  536. {
  537. int ret;
  538. ret = security_ops->file_mmap(file, reqprot, prot, flags, addr, addr_only);
  539. if (ret)
  540. return ret;
  541. return ima_file_mmap(file, prot);
  542. }
  543. int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
  544. unsigned long prot)
  545. {
  546. return security_ops->file_mprotect(vma, reqprot, prot);
  547. }
  548. int security_file_lock(struct file *file, unsigned int cmd)
  549. {
  550. return security_ops->file_lock(file, cmd);
  551. }
  552. int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
  553. {
  554. return security_ops->file_fcntl(file, cmd, arg);
  555. }
  556. int security_file_set_fowner(struct file *file)
  557. {
  558. return security_ops->file_set_fowner(file);
  559. }
  560. int security_file_send_sigiotask(struct task_struct *tsk,
  561. struct fown_struct *fown, int sig)
  562. {
  563. return security_ops->file_send_sigiotask(tsk, fown, sig);
  564. }
  565. int security_file_receive(struct file *file)
  566. {
  567. return security_ops->file_receive(file);
  568. }
  569. int security_dentry_open(struct file *file, const struct cred *cred)
  570. {
  571. int ret;
  572. ret = security_ops->dentry_open(file, cred);
  573. if (ret)
  574. return ret;
  575. return fsnotify_perm(file, MAY_OPEN);
  576. }
  577. int security_task_create(unsigned long clone_flags)
  578. {
  579. return security_ops->task_create(clone_flags);
  580. }
  581. int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
  582. {
  583. return security_ops->cred_alloc_blank(cred, gfp);
  584. }
  585. void security_cred_free(struct cred *cred)
  586. {
  587. security_ops->cred_free(cred);
  588. }
  589. int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
  590. {
  591. return security_ops->cred_prepare(new, old, gfp);
  592. }
  593. void security_transfer_creds(struct cred *new, const struct cred *old)
  594. {
  595. security_ops->cred_transfer(new, old);
  596. }
  597. int security_kernel_act_as(struct cred *new, u32 secid)
  598. {
  599. return security_ops->kernel_act_as(new, secid);
  600. }
  601. int security_kernel_create_files_as(struct cred *new, struct inode *inode)
  602. {
  603. return security_ops->kernel_create_files_as(new, inode);
  604. }
  605. int security_kernel_module_request(char *kmod_name)
  606. {
  607. return security_ops->kernel_module_request(kmod_name);
  608. }
  609. int security_task_fix_setuid(struct cred *new, const struct cred *old,
  610. int flags)
  611. {
  612. return security_ops->task_fix_setuid(new, old, flags);
  613. }
  614. int security_task_setpgid(struct task_struct *p, pid_t pgid)
  615. {
  616. return security_ops->task_setpgid(p, pgid);
  617. }
  618. int security_task_getpgid(struct task_struct *p)
  619. {
  620. return security_ops->task_getpgid(p);
  621. }
  622. int security_task_getsid(struct task_struct *p)
  623. {
  624. return security_ops->task_getsid(p);
  625. }
  626. void security_task_getsecid(struct task_struct *p, u32 *secid)
  627. {
  628. security_ops->task_getsecid(p, secid);
  629. }
  630. EXPORT_SYMBOL(security_task_getsecid);
  631. int security_task_setnice(struct task_struct *p, int nice)
  632. {
  633. return security_ops->task_setnice(p, nice);
  634. }
  635. int security_task_setioprio(struct task_struct *p, int ioprio)
  636. {
  637. return security_ops->task_setioprio(p, ioprio);
  638. }
  639. int security_task_getioprio(struct task_struct *p)
  640. {
  641. return security_ops->task_getioprio(p);
  642. }
  643. int security_task_setrlimit(struct task_struct *p, unsigned int resource,
  644. struct rlimit *new_rlim)
  645. {
  646. return security_ops->task_setrlimit(p, resource, new_rlim);
  647. }
  648. int security_task_setscheduler(struct task_struct *p)
  649. {
  650. return security_ops->task_setscheduler(p);
  651. }
  652. int security_task_getscheduler(struct task_struct *p)
  653. {
  654. return security_ops->task_getscheduler(p);
  655. }
  656. int security_task_movememory(struct task_struct *p)
  657. {
  658. return security_ops->task_movememory(p);
  659. }
  660. int security_task_kill(struct task_struct *p, struct siginfo *info,
  661. int sig, u32 secid)
  662. {
  663. return security_ops->task_kill(p, info, sig, secid);
  664. }
  665. int security_task_wait(struct task_struct *p)
  666. {
  667. return security_ops->task_wait(p);
  668. }
  669. int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
  670. unsigned long arg4, unsigned long arg5)
  671. {
  672. return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
  673. }
  674. void security_task_to_inode(struct task_struct *p, struct inode *inode)
  675. {
  676. security_ops->task_to_inode(p, inode);
  677. }
  678. int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
  679. {
  680. return security_ops->ipc_permission(ipcp, flag);
  681. }
  682. void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
  683. {
  684. security_ops->ipc_getsecid(ipcp, secid);
  685. }
  686. int security_msg_msg_alloc(struct msg_msg *msg)
  687. {
  688. return security_ops->msg_msg_alloc_security(msg);
  689. }
  690. void security_msg_msg_free(struct msg_msg *msg)
  691. {
  692. security_ops->msg_msg_free_security(msg);
  693. }
  694. int security_msg_queue_alloc(struct msg_queue *msq)
  695. {
  696. return security_ops->msg_queue_alloc_security(msq);
  697. }
  698. void security_msg_queue_free(struct msg_queue *msq)
  699. {
  700. security_ops->msg_queue_free_security(msq);
  701. }
  702. int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
  703. {
  704. return security_ops->msg_queue_associate(msq, msqflg);
  705. }
  706. int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
  707. {
  708. return security_ops->msg_queue_msgctl(msq, cmd);
  709. }
  710. int security_msg_queue_msgsnd(struct msg_queue *msq,
  711. struct msg_msg *msg, int msqflg)
  712. {
  713. return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
  714. }
  715. int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
  716. struct task_struct *target, long type, int mode)
  717. {
  718. return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
  719. }
  720. int security_shm_alloc(struct shmid_kernel *shp)
  721. {
  722. return security_ops->shm_alloc_security(shp);
  723. }
  724. void security_shm_free(struct shmid_kernel *shp)
  725. {
  726. security_ops->shm_free_security(shp);
  727. }
  728. int security_shm_associate(struct shmid_kernel *shp, int shmflg)
  729. {
  730. return security_ops->shm_associate(shp, shmflg);
  731. }
  732. int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
  733. {
  734. return security_ops->shm_shmctl(shp, cmd);
  735. }
  736. int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
  737. {
  738. return security_ops->shm_shmat(shp, shmaddr, shmflg);
  739. }
  740. int security_sem_alloc(struct sem_array *sma)
  741. {
  742. return security_ops->sem_alloc_security(sma);
  743. }
  744. void security_sem_free(struct sem_array *sma)
  745. {
  746. security_ops->sem_free_security(sma);
  747. }
  748. int security_sem_associate(struct sem_array *sma, int semflg)
  749. {
  750. return security_ops->sem_associate(sma, semflg);
  751. }
  752. int security_sem_semctl(struct sem_array *sma, int cmd)
  753. {
  754. return security_ops->sem_semctl(sma, cmd);
  755. }
  756. int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
  757. unsigned nsops, int alter)
  758. {
  759. return security_ops->sem_semop(sma, sops, nsops, alter);
  760. }
  761. void security_d_instantiate(struct dentry *dentry, struct inode *inode)
  762. {
  763. if (unlikely(inode && IS_PRIVATE(inode)))
  764. return;
  765. security_ops->d_instantiate(dentry, inode);
  766. }
  767. EXPORT_SYMBOL(security_d_instantiate);
  768. int security_getprocattr(struct task_struct *p, char *name, char **value)
  769. {
  770. return security_ops->getprocattr(p, name, value);
  771. }
  772. int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
  773. {
  774. return security_ops->setprocattr(p, name, value, size);
  775. }
  776. int security_netlink_send(struct sock *sk, struct sk_buff *skb)
  777. {
  778. return security_ops->netlink_send(sk, skb);
  779. }
  780. int security_netlink_recv(struct sk_buff *skb, int cap)
  781. {
  782. return security_ops->netlink_recv(skb, cap);
  783. }
  784. EXPORT_SYMBOL(security_netlink_recv);
  785. int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
  786. {
  787. return security_ops->secid_to_secctx(secid, secdata, seclen);
  788. }
  789. EXPORT_SYMBOL(security_secid_to_secctx);
  790. int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
  791. {
  792. return security_ops->secctx_to_secid(secdata, seclen, secid);
  793. }
  794. EXPORT_SYMBOL(security_secctx_to_secid);
  795. void security_release_secctx(char *secdata, u32 seclen)
  796. {
  797. security_ops->release_secctx(secdata, seclen);
  798. }
  799. EXPORT_SYMBOL(security_release_secctx);
  800. int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
  801. {
  802. return security_ops->inode_notifysecctx(inode, ctx, ctxlen);
  803. }
  804. EXPORT_SYMBOL(security_inode_notifysecctx);
  805. int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
  806. {
  807. return security_ops->inode_setsecctx(dentry, ctx, ctxlen);
  808. }
  809. EXPORT_SYMBOL(security_inode_setsecctx);
  810. int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
  811. {
  812. return security_ops->inode_getsecctx(inode, ctx, ctxlen);
  813. }
  814. EXPORT_SYMBOL(security_inode_getsecctx);
  815. #ifdef CONFIG_SECURITY_NETWORK
  816. int security_unix_stream_connect(struct socket *sock, struct socket *other,
  817. struct sock *newsk)
  818. {
  819. return security_ops->unix_stream_connect(sock, other, newsk);
  820. }
  821. EXPORT_SYMBOL(security_unix_stream_connect);
  822. int security_unix_may_send(struct socket *sock, struct socket *other)
  823. {
  824. return security_ops->unix_may_send(sock, other);
  825. }
  826. EXPORT_SYMBOL(security_unix_may_send);
  827. int security_socket_create(int family, int type, int protocol, int kern)
  828. {
  829. return security_ops->socket_create(family, type, protocol, kern);
  830. }
  831. int security_socket_post_create(struct socket *sock, int family,
  832. int type, int protocol, int kern)
  833. {
  834. return security_ops->socket_post_create(sock, family, type,
  835. protocol, kern);
  836. }
  837. int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
  838. {
  839. return security_ops->socket_bind(sock, address, addrlen);
  840. }
  841. int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
  842. {
  843. return security_ops->socket_connect(sock, address, addrlen);
  844. }
  845. int security_socket_listen(struct socket *sock, int backlog)
  846. {
  847. return security_ops->socket_listen(sock, backlog);
  848. }
  849. int security_socket_accept(struct socket *sock, struct socket *newsock)
  850. {
  851. return security_ops->socket_accept(sock, newsock);
  852. }
  853. int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
  854. {
  855. return security_ops->socket_sendmsg(sock, msg, size);
  856. }
  857. int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
  858. int size, int flags)
  859. {
  860. return security_ops->socket_recvmsg(sock, msg, size, flags);
  861. }
  862. int security_socket_getsockname(struct socket *sock)
  863. {
  864. return security_ops->socket_getsockname(sock);
  865. }
  866. int security_socket_getpeername(struct socket *sock)
  867. {
  868. return security_ops->socket_getpeername(sock);
  869. }
  870. int security_socket_getsockopt(struct socket *sock, int level, int optname)
  871. {
  872. return security_ops->socket_getsockopt(sock, level, optname);
  873. }
  874. int security_socket_setsockopt(struct socket *sock, int level, int optname)
  875. {
  876. return security_ops->socket_setsockopt(sock, level, optname);
  877. }
  878. int security_socket_shutdown(struct socket *sock, int how)
  879. {
  880. return security_ops->socket_shutdown(sock, how);
  881. }
  882. int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
  883. {
  884. return security_ops->socket_sock_rcv_skb(sk, skb);
  885. }
  886. EXPORT_SYMBOL(security_sock_rcv_skb);
  887. int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
  888. int __user *optlen, unsigned len)
  889. {
  890. return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
  891. }
  892. int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
  893. {
  894. return security_ops->socket_getpeersec_dgram(sock, skb, secid);
  895. }
  896. EXPORT_SYMBOL(security_socket_getpeersec_dgram);
  897. int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
  898. {
  899. return security_ops->sk_alloc_security(sk, family, priority);
  900. }
  901. void security_sk_free(struct sock *sk)
  902. {
  903. security_ops->sk_free_security(sk);
  904. }
  905. void security_sk_clone(const struct sock *sk, struct sock *newsk)
  906. {
  907. security_ops->sk_clone_security(sk, newsk);
  908. }
  909. void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
  910. {
  911. security_ops->sk_getsecid(sk, &fl->secid);
  912. }
  913. EXPORT_SYMBOL(security_sk_classify_flow);
  914. void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
  915. {
  916. security_ops->req_classify_flow(req, fl);
  917. }
  918. EXPORT_SYMBOL(security_req_classify_flow);
  919. void security_sock_graft(struct sock *sk, struct socket *parent)
  920. {
  921. security_ops->sock_graft(sk, parent);
  922. }
  923. EXPORT_SYMBOL(security_sock_graft);
  924. int security_inet_conn_request(struct sock *sk,
  925. struct sk_buff *skb, struct request_sock *req)
  926. {
  927. return security_ops->inet_conn_request(sk, skb, req);
  928. }
  929. EXPORT_SYMBOL(security_inet_conn_request);
  930. void security_inet_csk_clone(struct sock *newsk,
  931. const struct request_sock *req)
  932. {
  933. security_ops->inet_csk_clone(newsk, req);
  934. }
  935. void security_inet_conn_established(struct sock *sk,
  936. struct sk_buff *skb)
  937. {
  938. security_ops->inet_conn_established(sk, skb);
  939. }
  940. int security_secmark_relabel_packet(u32 secid)
  941. {
  942. return security_ops->secmark_relabel_packet(secid);
  943. }
  944. EXPORT_SYMBOL(security_secmark_relabel_packet);
  945. void security_secmark_refcount_inc(void)
  946. {
  947. security_ops->secmark_refcount_inc();
  948. }
  949. EXPORT_SYMBOL(security_secmark_refcount_inc);
  950. void security_secmark_refcount_dec(void)
  951. {
  952. security_ops->secmark_refcount_dec();
  953. }
  954. EXPORT_SYMBOL(security_secmark_refcount_dec);
  955. int security_tun_dev_create(void)
  956. {
  957. return security_ops->tun_dev_create();
  958. }
  959. EXPORT_SYMBOL(security_tun_dev_create);
  960. void security_tun_dev_post_create(struct sock *sk)
  961. {
  962. return security_ops->tun_dev_post_create(sk);
  963. }
  964. EXPORT_SYMBOL(security_tun_dev_post_create);
  965. int security_tun_dev_attach(struct sock *sk)
  966. {
  967. return security_ops->tun_dev_attach(sk);
  968. }
  969. EXPORT_SYMBOL(security_tun_dev_attach);
  970. #endif /* CONFIG_SECURITY_NETWORK */
  971. #ifdef CONFIG_SECURITY_NETWORK_XFRM
  972. int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
  973. {
  974. return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx);
  975. }
  976. EXPORT_SYMBOL(security_xfrm_policy_alloc);
  977. int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
  978. struct xfrm_sec_ctx **new_ctxp)
  979. {
  980. return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
  981. }
  982. void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
  983. {
  984. security_ops->xfrm_policy_free_security(ctx);
  985. }
  986. EXPORT_SYMBOL(security_xfrm_policy_free);
  987. int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
  988. {
  989. return security_ops->xfrm_policy_delete_security(ctx);
  990. }
  991. int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
  992. {
  993. return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
  994. }
  995. EXPORT_SYMBOL(security_xfrm_state_alloc);
  996. int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
  997. struct xfrm_sec_ctx *polsec, u32 secid)
  998. {
  999. if (!polsec)
  1000. return 0;
  1001. /*
  1002. * We want the context to be taken from secid which is usually
  1003. * from the sock.
  1004. */
  1005. return security_ops->xfrm_state_alloc_security(x, NULL, secid);
  1006. }
  1007. int security_xfrm_state_delete(struct xfrm_state *x)
  1008. {
  1009. return security_ops->xfrm_state_delete_security(x);
  1010. }
  1011. EXPORT_SYMBOL(security_xfrm_state_delete);
  1012. void security_xfrm_state_free(struct xfrm_state *x)
  1013. {
  1014. security_ops->xfrm_state_free_security(x);
  1015. }
  1016. int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
  1017. {
  1018. return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
  1019. }
  1020. int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
  1021. struct xfrm_policy *xp, struct flowi *fl)
  1022. {
  1023. return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
  1024. }
  1025. int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
  1026. {
  1027. return security_ops->xfrm_decode_session(skb, secid, 1);
  1028. }
  1029. void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
  1030. {
  1031. int rc = security_ops->xfrm_decode_session(skb, &fl->secid, 0);
  1032. BUG_ON(rc);
  1033. }
  1034. EXPORT_SYMBOL(security_skb_classify_flow);
  1035. #endif /* CONFIG_SECURITY_NETWORK_XFRM */
  1036. #ifdef CONFIG_KEYS
  1037. int security_key_alloc(struct key *key, const struct cred *cred,
  1038. unsigned long flags)
  1039. {
  1040. return security_ops->key_alloc(key, cred, flags);
  1041. }
  1042. void security_key_free(struct key *key)
  1043. {
  1044. security_ops->key_free(key);
  1045. }
  1046. int security_key_permission(key_ref_t key_ref,
  1047. const struct cred *cred, key_perm_t perm)
  1048. {
  1049. return security_ops->key_permission(key_ref, cred, perm);
  1050. }
  1051. int security_key_getsecurity(struct key *key, char **_buffer)
  1052. {
  1053. return security_ops->key_getsecurity(key, _buffer);
  1054. }
  1055. #endif /* CONFIG_KEYS */
  1056. #ifdef CONFIG_AUDIT
  1057. int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
  1058. {
  1059. return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
  1060. }
  1061. int security_audit_rule_known(struct audit_krule *krule)
  1062. {
  1063. return security_ops->audit_rule_known(krule);
  1064. }
  1065. void security_audit_rule_free(void *lsmrule)
  1066. {
  1067. security_ops->audit_rule_free(lsmrule);
  1068. }
  1069. int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
  1070. struct audit_context *actx)
  1071. {
  1072. return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
  1073. }
  1074. #endif /* CONFIG_AUDIT */