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