security.c 31 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. /* Boot-time LSM user choice */
  19. static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1];
  20. /* things that live in capability.c */
  21. extern struct security_operations default_security_ops;
  22. extern void security_fixup_ops(struct security_operations *ops);
  23. struct security_operations *security_ops; /* Initialized to NULL */
  24. /* amount of vm to protect from userspace access */
  25. unsigned long mmap_min_addr = CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR;
  26. static inline int verify(struct security_operations *ops)
  27. {
  28. /* verify the security_operations structure exists */
  29. if (!ops)
  30. return -EINVAL;
  31. security_fixup_ops(ops);
  32. return 0;
  33. }
  34. static void __init do_security_initcalls(void)
  35. {
  36. initcall_t *call;
  37. call = __security_initcall_start;
  38. while (call < __security_initcall_end) {
  39. (*call) ();
  40. call++;
  41. }
  42. }
  43. /**
  44. * security_init - initializes the security framework
  45. *
  46. * This should be called early in the kernel initialization sequence.
  47. */
  48. int __init security_init(void)
  49. {
  50. printk(KERN_INFO "Security Framework initialized\n");
  51. security_fixup_ops(&default_security_ops);
  52. security_ops = &default_security_ops;
  53. do_security_initcalls();
  54. return 0;
  55. }
  56. /* Save user chosen LSM */
  57. static int __init choose_lsm(char *str)
  58. {
  59. strncpy(chosen_lsm, str, SECURITY_NAME_MAX);
  60. return 1;
  61. }
  62. __setup("security=", choose_lsm);
  63. /**
  64. * security_module_enable - Load given security module on boot ?
  65. * @ops: a pointer to the struct security_operations that is to be checked.
  66. *
  67. * Each LSM must pass this method before registering its own operations
  68. * to avoid security registration races. This method may also be used
  69. * to check if your LSM is currently loaded during kernel initialization.
  70. *
  71. * Return true if:
  72. * -The passed LSM is the one chosen by user at boot time,
  73. * -or user didn't specify a specific LSM and we're the first to ask
  74. * for registration permission,
  75. * -or the passed LSM is currently loaded.
  76. * Otherwise, return false.
  77. */
  78. int __init security_module_enable(struct security_operations *ops)
  79. {
  80. if (!*chosen_lsm)
  81. strncpy(chosen_lsm, ops->name, SECURITY_NAME_MAX);
  82. else if (strncmp(ops->name, chosen_lsm, SECURITY_NAME_MAX))
  83. return 0;
  84. return 1;
  85. }
  86. /**
  87. * register_security - registers a security framework with the kernel
  88. * @ops: a pointer to the struct security_options that is to be registered
  89. *
  90. * This function allows a security module to register itself with the
  91. * kernel security subsystem. Some rudimentary checking is done on the @ops
  92. * value passed to this function. You'll need to check first if your LSM
  93. * is allowed to register its @ops by calling security_module_enable(@ops).
  94. *
  95. * If there is already a security module registered with the kernel,
  96. * an error will be returned. Otherwise %0 is returned on success.
  97. */
  98. int register_security(struct security_operations *ops)
  99. {
  100. if (verify(ops)) {
  101. printk(KERN_DEBUG "%s could not verify "
  102. "security_operations structure.\n", __func__);
  103. return -EINVAL;
  104. }
  105. if (security_ops != &default_security_ops)
  106. return -EAGAIN;
  107. security_ops = ops;
  108. return 0;
  109. }
  110. /* Security operations */
  111. int security_ptrace_may_access(struct task_struct *child, unsigned int mode)
  112. {
  113. return security_ops->ptrace_may_access(child, mode);
  114. }
  115. int security_ptrace_traceme(struct task_struct *parent)
  116. {
  117. return security_ops->ptrace_traceme(parent);
  118. }
  119. int security_capget(struct task_struct *target,
  120. kernel_cap_t *effective,
  121. kernel_cap_t *inheritable,
  122. kernel_cap_t *permitted)
  123. {
  124. return security_ops->capget(target, effective, inheritable, permitted);
  125. }
  126. int security_capset(struct cred *new, const struct cred *old,
  127. const kernel_cap_t *effective,
  128. const kernel_cap_t *inheritable,
  129. const kernel_cap_t *permitted)
  130. {
  131. return security_ops->capset(new, old,
  132. effective, inheritable, permitted);
  133. }
  134. int security_capable(int cap)
  135. {
  136. return security_ops->capable(current, current_cred(), cap,
  137. SECURITY_CAP_AUDIT);
  138. }
  139. int security_real_capable(struct task_struct *tsk, int cap)
  140. {
  141. const struct cred *cred;
  142. int ret;
  143. cred = get_task_cred(tsk);
  144. ret = security_ops->capable(tsk, cred, cap, SECURITY_CAP_AUDIT);
  145. put_cred(cred);
  146. return ret;
  147. }
  148. int security_real_capable_noaudit(struct task_struct *tsk, int cap)
  149. {
  150. const struct cred *cred;
  151. int ret;
  152. cred = get_task_cred(tsk);
  153. ret = security_ops->capable(tsk, cred, cap, SECURITY_CAP_NOAUDIT);
  154. put_cred(cred);
  155. return ret;
  156. }
  157. int security_acct(struct file *file)
  158. {
  159. return security_ops->acct(file);
  160. }
  161. int security_sysctl(struct ctl_table *table, int op)
  162. {
  163. return security_ops->sysctl(table, op);
  164. }
  165. int security_quotactl(int cmds, int type, int id, struct super_block *sb)
  166. {
  167. return security_ops->quotactl(cmds, type, id, sb);
  168. }
  169. int security_quota_on(struct dentry *dentry)
  170. {
  171. return security_ops->quota_on(dentry);
  172. }
  173. int security_syslog(int type)
  174. {
  175. return security_ops->syslog(type);
  176. }
  177. int security_settime(struct timespec *ts, struct timezone *tz)
  178. {
  179. return security_ops->settime(ts, tz);
  180. }
  181. int security_vm_enough_memory(long pages)
  182. {
  183. WARN_ON(current->mm == NULL);
  184. return security_ops->vm_enough_memory(current->mm, pages);
  185. }
  186. int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
  187. {
  188. WARN_ON(mm == NULL);
  189. return security_ops->vm_enough_memory(mm, pages);
  190. }
  191. int security_vm_enough_memory_kern(long pages)
  192. {
  193. /* If current->mm is a kernel thread then we will pass NULL,
  194. for this specific case that is fine */
  195. return security_ops->vm_enough_memory(current->mm, pages);
  196. }
  197. int security_bprm_set_creds(struct linux_binprm *bprm)
  198. {
  199. return security_ops->bprm_set_creds(bprm);
  200. }
  201. int security_bprm_check(struct linux_binprm *bprm)
  202. {
  203. return security_ops->bprm_check_security(bprm);
  204. }
  205. void security_bprm_committing_creds(struct linux_binprm *bprm)
  206. {
  207. security_ops->bprm_committing_creds(bprm);
  208. }
  209. void security_bprm_committed_creds(struct linux_binprm *bprm)
  210. {
  211. security_ops->bprm_committed_creds(bprm);
  212. }
  213. int security_bprm_secureexec(struct linux_binprm *bprm)
  214. {
  215. return security_ops->bprm_secureexec(bprm);
  216. }
  217. int security_sb_alloc(struct super_block *sb)
  218. {
  219. return security_ops->sb_alloc_security(sb);
  220. }
  221. void security_sb_free(struct super_block *sb)
  222. {
  223. security_ops->sb_free_security(sb);
  224. }
  225. int security_sb_copy_data(char *orig, char *copy)
  226. {
  227. return security_ops->sb_copy_data(orig, copy);
  228. }
  229. EXPORT_SYMBOL(security_sb_copy_data);
  230. int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
  231. {
  232. return security_ops->sb_kern_mount(sb, flags, data);
  233. }
  234. int security_sb_show_options(struct seq_file *m, struct super_block *sb)
  235. {
  236. return security_ops->sb_show_options(m, sb);
  237. }
  238. int security_sb_statfs(struct dentry *dentry)
  239. {
  240. return security_ops->sb_statfs(dentry);
  241. }
  242. int security_sb_mount(char *dev_name, struct path *path,
  243. char *type, unsigned long flags, void *data)
  244. {
  245. return security_ops->sb_mount(dev_name, path, type, flags, data);
  246. }
  247. int security_sb_check_sb(struct vfsmount *mnt, struct path *path)
  248. {
  249. return security_ops->sb_check_sb(mnt, path);
  250. }
  251. int security_sb_umount(struct vfsmount *mnt, int flags)
  252. {
  253. return security_ops->sb_umount(mnt, flags);
  254. }
  255. void security_sb_umount_close(struct vfsmount *mnt)
  256. {
  257. security_ops->sb_umount_close(mnt);
  258. }
  259. void security_sb_umount_busy(struct vfsmount *mnt)
  260. {
  261. security_ops->sb_umount_busy(mnt);
  262. }
  263. void security_sb_post_remount(struct vfsmount *mnt, unsigned long flags, void *data)
  264. {
  265. security_ops->sb_post_remount(mnt, flags, data);
  266. }
  267. void security_sb_post_addmount(struct vfsmount *mnt, struct path *mountpoint)
  268. {
  269. security_ops->sb_post_addmount(mnt, mountpoint);
  270. }
  271. int security_sb_pivotroot(struct path *old_path, struct path *new_path)
  272. {
  273. return security_ops->sb_pivotroot(old_path, new_path);
  274. }
  275. void security_sb_post_pivotroot(struct path *old_path, struct path *new_path)
  276. {
  277. security_ops->sb_post_pivotroot(old_path, new_path);
  278. }
  279. int security_sb_set_mnt_opts(struct super_block *sb,
  280. struct security_mnt_opts *opts)
  281. {
  282. return security_ops->sb_set_mnt_opts(sb, opts);
  283. }
  284. EXPORT_SYMBOL(security_sb_set_mnt_opts);
  285. void security_sb_clone_mnt_opts(const struct super_block *oldsb,
  286. struct super_block *newsb)
  287. {
  288. security_ops->sb_clone_mnt_opts(oldsb, newsb);
  289. }
  290. EXPORT_SYMBOL(security_sb_clone_mnt_opts);
  291. int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
  292. {
  293. return security_ops->sb_parse_opts_str(options, opts);
  294. }
  295. EXPORT_SYMBOL(security_sb_parse_opts_str);
  296. int security_inode_alloc(struct inode *inode)
  297. {
  298. inode->i_security = NULL;
  299. return security_ops->inode_alloc_security(inode);
  300. }
  301. void security_inode_free(struct inode *inode)
  302. {
  303. security_ops->inode_free_security(inode);
  304. }
  305. int security_inode_init_security(struct inode *inode, struct inode *dir,
  306. char **name, void **value, size_t *len)
  307. {
  308. if (unlikely(IS_PRIVATE(inode)))
  309. return -EOPNOTSUPP;
  310. return security_ops->inode_init_security(inode, dir, name, value, len);
  311. }
  312. EXPORT_SYMBOL(security_inode_init_security);
  313. #ifdef CONFIG_SECURITY_PATH
  314. int security_path_mknod(struct path *path, struct dentry *dentry, int mode,
  315. unsigned int dev)
  316. {
  317. if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
  318. return 0;
  319. return security_ops->path_mknod(path, dentry, mode, dev);
  320. }
  321. EXPORT_SYMBOL(security_path_mknod);
  322. int security_path_mkdir(struct path *path, struct dentry *dentry, int mode)
  323. {
  324. if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
  325. return 0;
  326. return security_ops->path_mkdir(path, dentry, mode);
  327. }
  328. int security_path_rmdir(struct path *path, struct dentry *dentry)
  329. {
  330. if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
  331. return 0;
  332. return security_ops->path_rmdir(path, dentry);
  333. }
  334. int security_path_unlink(struct path *path, struct dentry *dentry)
  335. {
  336. if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
  337. return 0;
  338. return security_ops->path_unlink(path, dentry);
  339. }
  340. int security_path_symlink(struct path *path, struct dentry *dentry,
  341. const char *old_name)
  342. {
  343. if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
  344. return 0;
  345. return security_ops->path_symlink(path, dentry, old_name);
  346. }
  347. int security_path_link(struct dentry *old_dentry, struct path *new_dir,
  348. struct dentry *new_dentry)
  349. {
  350. if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
  351. return 0;
  352. return security_ops->path_link(old_dentry, new_dir, new_dentry);
  353. }
  354. int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
  355. struct path *new_dir, struct dentry *new_dentry)
  356. {
  357. if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
  358. (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
  359. return 0;
  360. return security_ops->path_rename(old_dir, old_dentry, new_dir,
  361. new_dentry);
  362. }
  363. int security_path_truncate(struct path *path, loff_t length,
  364. unsigned int time_attrs)
  365. {
  366. if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
  367. return 0;
  368. return security_ops->path_truncate(path, length, time_attrs);
  369. }
  370. #endif
  371. int security_inode_create(struct inode *dir, struct dentry *dentry, int mode)
  372. {
  373. if (unlikely(IS_PRIVATE(dir)))
  374. return 0;
  375. return security_ops->inode_create(dir, dentry, mode);
  376. }
  377. EXPORT_SYMBOL_GPL(security_inode_create);
  378. int security_inode_link(struct dentry *old_dentry, struct inode *dir,
  379. struct dentry *new_dentry)
  380. {
  381. if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
  382. return 0;
  383. return security_ops->inode_link(old_dentry, dir, new_dentry);
  384. }
  385. int security_inode_unlink(struct inode *dir, struct dentry *dentry)
  386. {
  387. if (unlikely(IS_PRIVATE(dentry->d_inode)))
  388. return 0;
  389. return security_ops->inode_unlink(dir, dentry);
  390. }
  391. int security_inode_symlink(struct inode *dir, struct dentry *dentry,
  392. const char *old_name)
  393. {
  394. if (unlikely(IS_PRIVATE(dir)))
  395. return 0;
  396. return security_ops->inode_symlink(dir, dentry, old_name);
  397. }
  398. int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode)
  399. {
  400. if (unlikely(IS_PRIVATE(dir)))
  401. return 0;
  402. return security_ops->inode_mkdir(dir, dentry, mode);
  403. }
  404. EXPORT_SYMBOL_GPL(security_inode_mkdir);
  405. int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
  406. {
  407. if (unlikely(IS_PRIVATE(dentry->d_inode)))
  408. return 0;
  409. return security_ops->inode_rmdir(dir, dentry);
  410. }
  411. int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
  412. {
  413. if (unlikely(IS_PRIVATE(dir)))
  414. return 0;
  415. return security_ops->inode_mknod(dir, dentry, mode, dev);
  416. }
  417. int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
  418. struct inode *new_dir, struct dentry *new_dentry)
  419. {
  420. if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
  421. (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
  422. return 0;
  423. return security_ops->inode_rename(old_dir, old_dentry,
  424. new_dir, new_dentry);
  425. }
  426. int security_inode_readlink(struct dentry *dentry)
  427. {
  428. if (unlikely(IS_PRIVATE(dentry->d_inode)))
  429. return 0;
  430. return security_ops->inode_readlink(dentry);
  431. }
  432. int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
  433. {
  434. if (unlikely(IS_PRIVATE(dentry->d_inode)))
  435. return 0;
  436. return security_ops->inode_follow_link(dentry, nd);
  437. }
  438. int security_inode_permission(struct inode *inode, int mask)
  439. {
  440. if (unlikely(IS_PRIVATE(inode)))
  441. return 0;
  442. return security_ops->inode_permission(inode, mask);
  443. }
  444. int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
  445. {
  446. if (unlikely(IS_PRIVATE(dentry->d_inode)))
  447. return 0;
  448. return security_ops->inode_setattr(dentry, attr);
  449. }
  450. EXPORT_SYMBOL_GPL(security_inode_setattr);
  451. int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
  452. {
  453. if (unlikely(IS_PRIVATE(dentry->d_inode)))
  454. return 0;
  455. return security_ops->inode_getattr(mnt, dentry);
  456. }
  457. void security_inode_delete(struct inode *inode)
  458. {
  459. if (unlikely(IS_PRIVATE(inode)))
  460. return;
  461. security_ops->inode_delete(inode);
  462. }
  463. int security_inode_setxattr(struct dentry *dentry, const char *name,
  464. const void *value, size_t size, int flags)
  465. {
  466. if (unlikely(IS_PRIVATE(dentry->d_inode)))
  467. return 0;
  468. return security_ops->inode_setxattr(dentry, name, value, size, flags);
  469. }
  470. void security_inode_post_setxattr(struct dentry *dentry, const char *name,
  471. const void *value, size_t size, int flags)
  472. {
  473. if (unlikely(IS_PRIVATE(dentry->d_inode)))
  474. return;
  475. security_ops->inode_post_setxattr(dentry, name, value, size, flags);
  476. }
  477. int security_inode_getxattr(struct dentry *dentry, const char *name)
  478. {
  479. if (unlikely(IS_PRIVATE(dentry->d_inode)))
  480. return 0;
  481. return security_ops->inode_getxattr(dentry, name);
  482. }
  483. int security_inode_listxattr(struct dentry *dentry)
  484. {
  485. if (unlikely(IS_PRIVATE(dentry->d_inode)))
  486. return 0;
  487. return security_ops->inode_listxattr(dentry);
  488. }
  489. int security_inode_removexattr(struct dentry *dentry, const char *name)
  490. {
  491. if (unlikely(IS_PRIVATE(dentry->d_inode)))
  492. return 0;
  493. return security_ops->inode_removexattr(dentry, name);
  494. }
  495. int security_inode_need_killpriv(struct dentry *dentry)
  496. {
  497. return security_ops->inode_need_killpriv(dentry);
  498. }
  499. int security_inode_killpriv(struct dentry *dentry)
  500. {
  501. return security_ops->inode_killpriv(dentry);
  502. }
  503. int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
  504. {
  505. if (unlikely(IS_PRIVATE(inode)))
  506. return 0;
  507. return security_ops->inode_getsecurity(inode, name, buffer, alloc);
  508. }
  509. int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
  510. {
  511. if (unlikely(IS_PRIVATE(inode)))
  512. return 0;
  513. return security_ops->inode_setsecurity(inode, name, value, size, flags);
  514. }
  515. int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
  516. {
  517. if (unlikely(IS_PRIVATE(inode)))
  518. return 0;
  519. return security_ops->inode_listsecurity(inode, buffer, buffer_size);
  520. }
  521. void security_inode_getsecid(const struct inode *inode, u32 *secid)
  522. {
  523. security_ops->inode_getsecid(inode, secid);
  524. }
  525. int security_file_permission(struct file *file, int mask)
  526. {
  527. return security_ops->file_permission(file, mask);
  528. }
  529. int security_file_alloc(struct file *file)
  530. {
  531. return security_ops->file_alloc_security(file);
  532. }
  533. void security_file_free(struct file *file)
  534. {
  535. security_ops->file_free_security(file);
  536. }
  537. int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
  538. {
  539. return security_ops->file_ioctl(file, cmd, arg);
  540. }
  541. int security_file_mmap(struct file *file, unsigned long reqprot,
  542. unsigned long prot, unsigned long flags,
  543. unsigned long addr, unsigned long addr_only)
  544. {
  545. return security_ops->file_mmap(file, reqprot, prot, flags, addr, addr_only);
  546. }
  547. int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
  548. unsigned long prot)
  549. {
  550. return security_ops->file_mprotect(vma, reqprot, prot);
  551. }
  552. int security_file_lock(struct file *file, unsigned int cmd)
  553. {
  554. return security_ops->file_lock(file, cmd);
  555. }
  556. int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
  557. {
  558. return security_ops->file_fcntl(file, cmd, arg);
  559. }
  560. int security_file_set_fowner(struct file *file)
  561. {
  562. return security_ops->file_set_fowner(file);
  563. }
  564. int security_file_send_sigiotask(struct task_struct *tsk,
  565. struct fown_struct *fown, int sig)
  566. {
  567. return security_ops->file_send_sigiotask(tsk, fown, sig);
  568. }
  569. int security_file_receive(struct file *file)
  570. {
  571. return security_ops->file_receive(file);
  572. }
  573. int security_dentry_open(struct file *file, const struct cred *cred)
  574. {
  575. return security_ops->dentry_open(file, cred);
  576. }
  577. int security_task_create(unsigned long clone_flags)
  578. {
  579. return security_ops->task_create(clone_flags);
  580. }
  581. void security_cred_free(struct cred *cred)
  582. {
  583. security_ops->cred_free(cred);
  584. }
  585. int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
  586. {
  587. return security_ops->cred_prepare(new, old, gfp);
  588. }
  589. void security_commit_creds(struct cred *new, const struct cred *old)
  590. {
  591. security_ops->cred_commit(new, old);
  592. }
  593. int security_kernel_act_as(struct cred *new, u32 secid)
  594. {
  595. return security_ops->kernel_act_as(new, secid);
  596. }
  597. int security_kernel_create_files_as(struct cred *new, struct inode *inode)
  598. {
  599. return security_ops->kernel_create_files_as(new, inode);
  600. }
  601. int security_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags)
  602. {
  603. return security_ops->task_setuid(id0, id1, id2, flags);
  604. }
  605. int security_task_fix_setuid(struct cred *new, const struct cred *old,
  606. int flags)
  607. {
  608. return security_ops->task_fix_setuid(new, old, flags);
  609. }
  610. int security_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags)
  611. {
  612. return security_ops->task_setgid(id0, id1, id2, 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_setgroups(struct group_info *group_info)
  632. {
  633. return security_ops->task_setgroups(group_info);
  634. }
  635. int security_task_setnice(struct task_struct *p, int nice)
  636. {
  637. return security_ops->task_setnice(p, nice);
  638. }
  639. int security_task_setioprio(struct task_struct *p, int ioprio)
  640. {
  641. return security_ops->task_setioprio(p, ioprio);
  642. }
  643. int security_task_getioprio(struct task_struct *p)
  644. {
  645. return security_ops->task_getioprio(p);
  646. }
  647. int security_task_setrlimit(unsigned int resource, struct rlimit *new_rlim)
  648. {
  649. return security_ops->task_setrlimit(resource, new_rlim);
  650. }
  651. int security_task_setscheduler(struct task_struct *p,
  652. int policy, struct sched_param *lp)
  653. {
  654. return security_ops->task_setscheduler(p, policy, lp);
  655. }
  656. int security_task_getscheduler(struct task_struct *p)
  657. {
  658. return security_ops->task_getscheduler(p);
  659. }
  660. int security_task_movememory(struct task_struct *p)
  661. {
  662. return security_ops->task_movememory(p);
  663. }
  664. int security_task_kill(struct task_struct *p, struct siginfo *info,
  665. int sig, u32 secid)
  666. {
  667. return security_ops->task_kill(p, info, sig, secid);
  668. }
  669. int security_task_wait(struct task_struct *p)
  670. {
  671. return security_ops->task_wait(p);
  672. }
  673. int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
  674. unsigned long arg4, unsigned long arg5)
  675. {
  676. return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
  677. }
  678. void security_task_to_inode(struct task_struct *p, struct inode *inode)
  679. {
  680. security_ops->task_to_inode(p, inode);
  681. }
  682. int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
  683. {
  684. return security_ops->ipc_permission(ipcp, flag);
  685. }
  686. void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
  687. {
  688. security_ops->ipc_getsecid(ipcp, secid);
  689. }
  690. int security_msg_msg_alloc(struct msg_msg *msg)
  691. {
  692. return security_ops->msg_msg_alloc_security(msg);
  693. }
  694. void security_msg_msg_free(struct msg_msg *msg)
  695. {
  696. security_ops->msg_msg_free_security(msg);
  697. }
  698. int security_msg_queue_alloc(struct msg_queue *msq)
  699. {
  700. return security_ops->msg_queue_alloc_security(msq);
  701. }
  702. void security_msg_queue_free(struct msg_queue *msq)
  703. {
  704. security_ops->msg_queue_free_security(msq);
  705. }
  706. int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
  707. {
  708. return security_ops->msg_queue_associate(msq, msqflg);
  709. }
  710. int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
  711. {
  712. return security_ops->msg_queue_msgctl(msq, cmd);
  713. }
  714. int security_msg_queue_msgsnd(struct msg_queue *msq,
  715. struct msg_msg *msg, int msqflg)
  716. {
  717. return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
  718. }
  719. int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
  720. struct task_struct *target, long type, int mode)
  721. {
  722. return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
  723. }
  724. int security_shm_alloc(struct shmid_kernel *shp)
  725. {
  726. return security_ops->shm_alloc_security(shp);
  727. }
  728. void security_shm_free(struct shmid_kernel *shp)
  729. {
  730. security_ops->shm_free_security(shp);
  731. }
  732. int security_shm_associate(struct shmid_kernel *shp, int shmflg)
  733. {
  734. return security_ops->shm_associate(shp, shmflg);
  735. }
  736. int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
  737. {
  738. return security_ops->shm_shmctl(shp, cmd);
  739. }
  740. int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
  741. {
  742. return security_ops->shm_shmat(shp, shmaddr, shmflg);
  743. }
  744. int security_sem_alloc(struct sem_array *sma)
  745. {
  746. return security_ops->sem_alloc_security(sma);
  747. }
  748. void security_sem_free(struct sem_array *sma)
  749. {
  750. security_ops->sem_free_security(sma);
  751. }
  752. int security_sem_associate(struct sem_array *sma, int semflg)
  753. {
  754. return security_ops->sem_associate(sma, semflg);
  755. }
  756. int security_sem_semctl(struct sem_array *sma, int cmd)
  757. {
  758. return security_ops->sem_semctl(sma, cmd);
  759. }
  760. int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
  761. unsigned nsops, int alter)
  762. {
  763. return security_ops->sem_semop(sma, sops, nsops, alter);
  764. }
  765. void security_d_instantiate(struct dentry *dentry, struct inode *inode)
  766. {
  767. if (unlikely(inode && IS_PRIVATE(inode)))
  768. return;
  769. security_ops->d_instantiate(dentry, inode);
  770. }
  771. EXPORT_SYMBOL(security_d_instantiate);
  772. int security_getprocattr(struct task_struct *p, char *name, char **value)
  773. {
  774. return security_ops->getprocattr(p, name, value);
  775. }
  776. int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
  777. {
  778. return security_ops->setprocattr(p, name, value, size);
  779. }
  780. int security_netlink_send(struct sock *sk, struct sk_buff *skb)
  781. {
  782. return security_ops->netlink_send(sk, skb);
  783. }
  784. int security_netlink_recv(struct sk_buff *skb, int cap)
  785. {
  786. return security_ops->netlink_recv(skb, cap);
  787. }
  788. EXPORT_SYMBOL(security_netlink_recv);
  789. int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
  790. {
  791. return security_ops->secid_to_secctx(secid, secdata, seclen);
  792. }
  793. EXPORT_SYMBOL(security_secid_to_secctx);
  794. int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
  795. {
  796. return security_ops->secctx_to_secid(secdata, seclen, secid);
  797. }
  798. EXPORT_SYMBOL(security_secctx_to_secid);
  799. void security_release_secctx(char *secdata, u32 seclen)
  800. {
  801. security_ops->release_secctx(secdata, seclen);
  802. }
  803. EXPORT_SYMBOL(security_release_secctx);
  804. #ifdef CONFIG_SECURITY_NETWORK
  805. int security_unix_stream_connect(struct socket *sock, struct socket *other,
  806. struct sock *newsk)
  807. {
  808. return security_ops->unix_stream_connect(sock, other, newsk);
  809. }
  810. EXPORT_SYMBOL(security_unix_stream_connect);
  811. int security_unix_may_send(struct socket *sock, struct socket *other)
  812. {
  813. return security_ops->unix_may_send(sock, other);
  814. }
  815. EXPORT_SYMBOL(security_unix_may_send);
  816. int security_socket_create(int family, int type, int protocol, int kern)
  817. {
  818. return security_ops->socket_create(family, type, protocol, kern);
  819. }
  820. int security_socket_post_create(struct socket *sock, int family,
  821. int type, int protocol, int kern)
  822. {
  823. return security_ops->socket_post_create(sock, family, type,
  824. protocol, kern);
  825. }
  826. int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
  827. {
  828. return security_ops->socket_bind(sock, address, addrlen);
  829. }
  830. int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
  831. {
  832. return security_ops->socket_connect(sock, address, addrlen);
  833. }
  834. int security_socket_listen(struct socket *sock, int backlog)
  835. {
  836. return security_ops->socket_listen(sock, backlog);
  837. }
  838. int security_socket_accept(struct socket *sock, struct socket *newsock)
  839. {
  840. return security_ops->socket_accept(sock, newsock);
  841. }
  842. int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
  843. {
  844. return security_ops->socket_sendmsg(sock, msg, size);
  845. }
  846. int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
  847. int size, int flags)
  848. {
  849. return security_ops->socket_recvmsg(sock, msg, size, flags);
  850. }
  851. int security_socket_getsockname(struct socket *sock)
  852. {
  853. return security_ops->socket_getsockname(sock);
  854. }
  855. int security_socket_getpeername(struct socket *sock)
  856. {
  857. return security_ops->socket_getpeername(sock);
  858. }
  859. int security_socket_getsockopt(struct socket *sock, int level, int optname)
  860. {
  861. return security_ops->socket_getsockopt(sock, level, optname);
  862. }
  863. int security_socket_setsockopt(struct socket *sock, int level, int optname)
  864. {
  865. return security_ops->socket_setsockopt(sock, level, optname);
  866. }
  867. int security_socket_shutdown(struct socket *sock, int how)
  868. {
  869. return security_ops->socket_shutdown(sock, how);
  870. }
  871. int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
  872. {
  873. return security_ops->socket_sock_rcv_skb(sk, skb);
  874. }
  875. EXPORT_SYMBOL(security_sock_rcv_skb);
  876. int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
  877. int __user *optlen, unsigned len)
  878. {
  879. return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
  880. }
  881. int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
  882. {
  883. return security_ops->socket_getpeersec_dgram(sock, skb, secid);
  884. }
  885. EXPORT_SYMBOL(security_socket_getpeersec_dgram);
  886. int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
  887. {
  888. return security_ops->sk_alloc_security(sk, family, priority);
  889. }
  890. void security_sk_free(struct sock *sk)
  891. {
  892. security_ops->sk_free_security(sk);
  893. }
  894. void security_sk_clone(const struct sock *sk, struct sock *newsk)
  895. {
  896. security_ops->sk_clone_security(sk, newsk);
  897. }
  898. void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
  899. {
  900. security_ops->sk_getsecid(sk, &fl->secid);
  901. }
  902. EXPORT_SYMBOL(security_sk_classify_flow);
  903. void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
  904. {
  905. security_ops->req_classify_flow(req, fl);
  906. }
  907. EXPORT_SYMBOL(security_req_classify_flow);
  908. void security_sock_graft(struct sock *sk, struct socket *parent)
  909. {
  910. security_ops->sock_graft(sk, parent);
  911. }
  912. EXPORT_SYMBOL(security_sock_graft);
  913. int security_inet_conn_request(struct sock *sk,
  914. struct sk_buff *skb, struct request_sock *req)
  915. {
  916. return security_ops->inet_conn_request(sk, skb, req);
  917. }
  918. EXPORT_SYMBOL(security_inet_conn_request);
  919. void security_inet_csk_clone(struct sock *newsk,
  920. const struct request_sock *req)
  921. {
  922. security_ops->inet_csk_clone(newsk, req);
  923. }
  924. void security_inet_conn_established(struct sock *sk,
  925. struct sk_buff *skb)
  926. {
  927. security_ops->inet_conn_established(sk, skb);
  928. }
  929. #endif /* CONFIG_SECURITY_NETWORK */
  930. #ifdef CONFIG_SECURITY_NETWORK_XFRM
  931. int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
  932. {
  933. return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx);
  934. }
  935. EXPORT_SYMBOL(security_xfrm_policy_alloc);
  936. int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
  937. struct xfrm_sec_ctx **new_ctxp)
  938. {
  939. return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
  940. }
  941. void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
  942. {
  943. security_ops->xfrm_policy_free_security(ctx);
  944. }
  945. EXPORT_SYMBOL(security_xfrm_policy_free);
  946. int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
  947. {
  948. return security_ops->xfrm_policy_delete_security(ctx);
  949. }
  950. int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
  951. {
  952. return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
  953. }
  954. EXPORT_SYMBOL(security_xfrm_state_alloc);
  955. int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
  956. struct xfrm_sec_ctx *polsec, u32 secid)
  957. {
  958. if (!polsec)
  959. return 0;
  960. /*
  961. * We want the context to be taken from secid which is usually
  962. * from the sock.
  963. */
  964. return security_ops->xfrm_state_alloc_security(x, NULL, secid);
  965. }
  966. int security_xfrm_state_delete(struct xfrm_state *x)
  967. {
  968. return security_ops->xfrm_state_delete_security(x);
  969. }
  970. EXPORT_SYMBOL(security_xfrm_state_delete);
  971. void security_xfrm_state_free(struct xfrm_state *x)
  972. {
  973. security_ops->xfrm_state_free_security(x);
  974. }
  975. int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
  976. {
  977. return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
  978. }
  979. int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
  980. struct xfrm_policy *xp, struct flowi *fl)
  981. {
  982. return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
  983. }
  984. int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
  985. {
  986. return security_ops->xfrm_decode_session(skb, secid, 1);
  987. }
  988. void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
  989. {
  990. int rc = security_ops->xfrm_decode_session(skb, &fl->secid, 0);
  991. BUG_ON(rc);
  992. }
  993. EXPORT_SYMBOL(security_skb_classify_flow);
  994. #endif /* CONFIG_SECURITY_NETWORK_XFRM */
  995. #ifdef CONFIG_KEYS
  996. int security_key_alloc(struct key *key, const struct cred *cred,
  997. unsigned long flags)
  998. {
  999. return security_ops->key_alloc(key, cred, flags);
  1000. }
  1001. void security_key_free(struct key *key)
  1002. {
  1003. security_ops->key_free(key);
  1004. }
  1005. int security_key_permission(key_ref_t key_ref,
  1006. const struct cred *cred, key_perm_t perm)
  1007. {
  1008. return security_ops->key_permission(key_ref, cred, perm);
  1009. }
  1010. int security_key_getsecurity(struct key *key, char **_buffer)
  1011. {
  1012. return security_ops->key_getsecurity(key, _buffer);
  1013. }
  1014. #endif /* CONFIG_KEYS */
  1015. #ifdef CONFIG_AUDIT
  1016. int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
  1017. {
  1018. return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
  1019. }
  1020. int security_audit_rule_known(struct audit_krule *krule)
  1021. {
  1022. return security_ops->audit_rule_known(krule);
  1023. }
  1024. void security_audit_rule_free(void *lsmrule)
  1025. {
  1026. security_ops->audit_rule_free(lsmrule);
  1027. }
  1028. int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
  1029. struct audit_context *actx)
  1030. {
  1031. return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
  1032. }
  1033. #endif /* CONFIG_AUDIT */