capability.c 24 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697989910010110210310410510610710810911011111211311411511611711811912012112212312412512612712812913013113213313413513613713813914014114214314414514614714814915015115215315415515615715815916016116216316416516616716816917017117217317417517617717817918018118218318418518618718818919019119219319419519619719819920020120220320420520620720820921021121221321421521621721821922022122222322422522622722822923023123223323423523623723823924024124224324424524624724824925025125225325425525625725825926026126226326426526626726826927027127227327427527627727827928028128228328428528628728828929029129229329429529629729829930030130230330430530630730830931031131231331431531631731831932032132232332432532632732832933033133233333433533633733833934034134234334434534634734834935035135235335435535635735835936036136236336436536636736836937037137237337437537637737837938038138238338438538638738838939039139239339439539639739839940040140240340440540640740840941041141241341441541641741841942042142242342442542642742842943043143243343443543643743843944044144244344444544644744844945045145245345445545645745845946046146246346446546646746846947047147247347447547647747847948048148248348448548648748848949049149249349449549649749849950050150250350450550650750850951051151251351451551651751851952052152252352452552652752852953053153253353453553653753853954054154254354454554654754854955055155255355455555655755855956056156256356456556656756856957057157257357457557657757857958058158258358458558658758858959059159259359459559659759859960060160260360460560660760860961061161261361461561661761861962062162262362462562662762862963063163263363463563663763863964064164264364464564664764864965065165265365465565665765865966066166266366466566666766866967067167267367467567667767867968068168268368468568668768868969069169269369469569669769869970070170270370470570670770870971071171271371471571671771871972072172272372472572672772872973073173273373473573673773873974074174274374474574674774874975075175275375475575675775875976076176276376476576676776876977077177277377477577677777877978078178278378478578678778878979079179279379479579679779879980080180280380480580680780880981081181281381481581681781881982082182282382482582682782882983083183283383483583683783883984084184284384484584684784884985085185285385485585685785885986086186286386486586686786886987087187287387487587687787887988088188288388488588688788888989089189289389489589689789889990090190290390490590690790890991091191291391491591691791891992092192292392492592692792892993093193293393493593693793893994094194294394494594694794894995095195295395495595695795895996096196296396496596696796896997097197297397497597697797897998098198298398498598698798898999099199299399499599699799899910001001100210031004100510061007100810091010101110121013101410151016101710181019102010211022102310241025102610271028102910301031103210331034103510361037103810391040104110421043104410451046104710481049105010511052105310541055105610571058105910601061106210631064106510661067106810691070107110721073107410751076107710781079108010811082108310841085108610871088108910901091109210931094109510961097109810991100110111021103110411051106110711081109111011111112111311141115111611171118
  1. /*
  2. * Capabilities Linux Security Module
  3. *
  4. * This is the default security module in case no other module is loaded.
  5. *
  6. * This program is free software; you can redistribute it and/or modify
  7. * it under the terms of the GNU General Public License as published by
  8. * the Free Software Foundation; either version 2 of the License, or
  9. * (at your option) any later version.
  10. *
  11. */
  12. #include <linux/security.h>
  13. static int cap_binder_set_context_mgr(struct task_struct *mgr)
  14. {
  15. return 0;
  16. }
  17. static int cap_binder_transaction(struct task_struct *from, struct task_struct *to)
  18. {
  19. return 0;
  20. }
  21. static int cap_binder_transfer_binder(struct task_struct *from, struct task_struct *to)
  22. {
  23. return 0;
  24. }
  25. static int cap_binder_transfer_file(struct task_struct *from, struct task_struct *to, struct file *file)
  26. {
  27. return 0;
  28. }
  29. static int cap_syslog(int type)
  30. {
  31. return 0;
  32. }
  33. static int cap_quotactl(int cmds, int type, int id, struct super_block *sb)
  34. {
  35. return 0;
  36. }
  37. static int cap_quota_on(struct dentry *dentry)
  38. {
  39. return 0;
  40. }
  41. static int cap_bprm_check_security(struct linux_binprm *bprm)
  42. {
  43. return 0;
  44. }
  45. static void cap_bprm_committing_creds(struct linux_binprm *bprm)
  46. {
  47. }
  48. static void cap_bprm_committed_creds(struct linux_binprm *bprm)
  49. {
  50. }
  51. static int cap_sb_alloc_security(struct super_block *sb)
  52. {
  53. return 0;
  54. }
  55. static void cap_sb_free_security(struct super_block *sb)
  56. {
  57. }
  58. static int cap_sb_copy_data(char *orig, char *copy)
  59. {
  60. return 0;
  61. }
  62. static int cap_sb_remount(struct super_block *sb, void *data)
  63. {
  64. return 0;
  65. }
  66. static int cap_sb_kern_mount(struct super_block *sb, int flags, void *data)
  67. {
  68. return 0;
  69. }
  70. static int cap_sb_show_options(struct seq_file *m, struct super_block *sb)
  71. {
  72. return 0;
  73. }
  74. static int cap_sb_statfs(struct dentry *dentry)
  75. {
  76. return 0;
  77. }
  78. static int cap_sb_mount(const char *dev_name, struct path *path,
  79. const char *type, unsigned long flags, void *data)
  80. {
  81. return 0;
  82. }
  83. static int cap_sb_umount(struct vfsmount *mnt, int flags)
  84. {
  85. return 0;
  86. }
  87. static int cap_sb_pivotroot(struct path *old_path, struct path *new_path)
  88. {
  89. return 0;
  90. }
  91. static int cap_sb_set_mnt_opts(struct super_block *sb,
  92. struct security_mnt_opts *opts)
  93. {
  94. if (unlikely(opts->num_mnt_opts))
  95. return -EOPNOTSUPP;
  96. return 0;
  97. }
  98. static void cap_sb_clone_mnt_opts(const struct super_block *oldsb,
  99. struct super_block *newsb)
  100. {
  101. }
  102. static int cap_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
  103. {
  104. return 0;
  105. }
  106. static int cap_inode_alloc_security(struct inode *inode)
  107. {
  108. return 0;
  109. }
  110. static void cap_inode_free_security(struct inode *inode)
  111. {
  112. }
  113. static int cap_inode_init_security(struct inode *inode, struct inode *dir,
  114. const struct qstr *qstr, char **name,
  115. void **value, size_t *len)
  116. {
  117. return -EOPNOTSUPP;
  118. }
  119. static int cap_inode_create(struct inode *inode, struct dentry *dentry,
  120. umode_t mask)
  121. {
  122. return 0;
  123. }
  124. static int cap_inode_link(struct dentry *old_dentry, struct inode *inode,
  125. struct dentry *new_dentry)
  126. {
  127. return 0;
  128. }
  129. static int cap_inode_unlink(struct inode *inode, struct dentry *dentry)
  130. {
  131. return 0;
  132. }
  133. static int cap_inode_symlink(struct inode *inode, struct dentry *dentry,
  134. const char *name)
  135. {
  136. return 0;
  137. }
  138. static int cap_inode_mkdir(struct inode *inode, struct dentry *dentry,
  139. umode_t mask)
  140. {
  141. return 0;
  142. }
  143. static int cap_inode_rmdir(struct inode *inode, struct dentry *dentry)
  144. {
  145. return 0;
  146. }
  147. static int cap_inode_mknod(struct inode *inode, struct dentry *dentry,
  148. umode_t mode, dev_t dev)
  149. {
  150. return 0;
  151. }
  152. static int cap_inode_rename(struct inode *old_inode, struct dentry *old_dentry,
  153. struct inode *new_inode, struct dentry *new_dentry)
  154. {
  155. return 0;
  156. }
  157. static int cap_inode_readlink(struct dentry *dentry)
  158. {
  159. return 0;
  160. }
  161. static int cap_inode_follow_link(struct dentry *dentry,
  162. struct nameidata *nameidata)
  163. {
  164. return 0;
  165. }
  166. static int cap_inode_permission(struct inode *inode, int mask)
  167. {
  168. return 0;
  169. }
  170. static int cap_inode_setattr(struct dentry *dentry, struct iattr *iattr)
  171. {
  172. return 0;
  173. }
  174. static int cap_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
  175. {
  176. return 0;
  177. }
  178. static void cap_inode_post_setxattr(struct dentry *dentry, const char *name,
  179. const void *value, size_t size, int flags)
  180. {
  181. }
  182. static int cap_inode_getxattr(struct dentry *dentry, const char *name)
  183. {
  184. return 0;
  185. }
  186. static int cap_inode_listxattr(struct dentry *dentry)
  187. {
  188. return 0;
  189. }
  190. static int cap_inode_getsecurity(const struct inode *inode, const char *name,
  191. void **buffer, bool alloc)
  192. {
  193. return -EOPNOTSUPP;
  194. }
  195. static int cap_inode_setsecurity(struct inode *inode, const char *name,
  196. const void *value, size_t size, int flags)
  197. {
  198. return -EOPNOTSUPP;
  199. }
  200. static int cap_inode_listsecurity(struct inode *inode, char *buffer,
  201. size_t buffer_size)
  202. {
  203. return 0;
  204. }
  205. static void cap_inode_getsecid(const struct inode *inode, u32 *secid)
  206. {
  207. *secid = 0;
  208. }
  209. #ifdef CONFIG_SECURITY_PATH
  210. static int cap_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
  211. unsigned int dev)
  212. {
  213. return 0;
  214. }
  215. static int cap_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
  216. {
  217. return 0;
  218. }
  219. static int cap_path_rmdir(struct path *dir, struct dentry *dentry)
  220. {
  221. return 0;
  222. }
  223. static int cap_path_unlink(struct path *dir, struct dentry *dentry)
  224. {
  225. return 0;
  226. }
  227. static int cap_path_symlink(struct path *dir, struct dentry *dentry,
  228. const char *old_name)
  229. {
  230. return 0;
  231. }
  232. static int cap_path_link(struct dentry *old_dentry, struct path *new_dir,
  233. struct dentry *new_dentry)
  234. {
  235. return 0;
  236. }
  237. static int cap_path_rename(struct path *old_path, struct dentry *old_dentry,
  238. struct path *new_path, struct dentry *new_dentry)
  239. {
  240. return 0;
  241. }
  242. static int cap_path_truncate(struct path *path)
  243. {
  244. return 0;
  245. }
  246. static int cap_path_chmod(struct path *path, umode_t mode)
  247. {
  248. return 0;
  249. }
  250. static int cap_path_chown(struct path *path, uid_t uid, gid_t gid)
  251. {
  252. return 0;
  253. }
  254. static int cap_path_chroot(struct path *root)
  255. {
  256. return 0;
  257. }
  258. #endif
  259. static int cap_file_permission(struct file *file, int mask)
  260. {
  261. return 0;
  262. }
  263. static int cap_file_alloc_security(struct file *file)
  264. {
  265. return 0;
  266. }
  267. static void cap_file_free_security(struct file *file)
  268. {
  269. }
  270. static int cap_file_ioctl(struct file *file, unsigned int command,
  271. unsigned long arg)
  272. {
  273. return 0;
  274. }
  275. static int cap_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
  276. unsigned long prot)
  277. {
  278. return 0;
  279. }
  280. static int cap_file_lock(struct file *file, unsigned int cmd)
  281. {
  282. return 0;
  283. }
  284. static int cap_file_fcntl(struct file *file, unsigned int cmd,
  285. unsigned long arg)
  286. {
  287. return 0;
  288. }
  289. static int cap_file_set_fowner(struct file *file)
  290. {
  291. return 0;
  292. }
  293. static int cap_file_send_sigiotask(struct task_struct *tsk,
  294. struct fown_struct *fown, int sig)
  295. {
  296. return 0;
  297. }
  298. static int cap_file_receive(struct file *file)
  299. {
  300. return 0;
  301. }
  302. static int cap_file_open(struct file *file, const struct cred *cred)
  303. {
  304. return 0;
  305. }
  306. static int cap_task_create(unsigned long clone_flags)
  307. {
  308. return 0;
  309. }
  310. static void cap_task_free(struct task_struct *task)
  311. {
  312. }
  313. static int cap_cred_alloc_blank(struct cred *cred, gfp_t gfp)
  314. {
  315. return 0;
  316. }
  317. static void cap_cred_free(struct cred *cred)
  318. {
  319. }
  320. static int cap_cred_prepare(struct cred *new, const struct cred *old, gfp_t gfp)
  321. {
  322. return 0;
  323. }
  324. static void cap_cred_transfer(struct cred *new, const struct cred *old)
  325. {
  326. }
  327. static void cap_cred_getsecid(const struct cred *c, u32 *secid)
  328. {
  329. }
  330. static int cap_kernel_act_as(struct cred *new, u32 secid)
  331. {
  332. return 0;
  333. }
  334. static int cap_kernel_create_files_as(struct cred *new, struct inode *inode)
  335. {
  336. return 0;
  337. }
  338. static int cap_kernel_module_request(char *kmod_name)
  339. {
  340. return 0;
  341. }
  342. static int cap_kernel_module_from_file(struct file *file)
  343. {
  344. return 0;
  345. }
  346. static int cap_task_setpgid(struct task_struct *p, pid_t pgid)
  347. {
  348. return 0;
  349. }
  350. static int cap_task_getpgid(struct task_struct *p)
  351. {
  352. return 0;
  353. }
  354. static int cap_task_getsid(struct task_struct *p)
  355. {
  356. return 0;
  357. }
  358. static void cap_task_getsecid(struct task_struct *p, u32 *secid)
  359. {
  360. *secid = 0;
  361. }
  362. static int cap_task_getioprio(struct task_struct *p)
  363. {
  364. return 0;
  365. }
  366. static int cap_task_setrlimit(struct task_struct *p, unsigned int resource,
  367. struct rlimit *new_rlim)
  368. {
  369. return 0;
  370. }
  371. static int cap_task_getscheduler(struct task_struct *p)
  372. {
  373. return 0;
  374. }
  375. static int cap_task_movememory(struct task_struct *p)
  376. {
  377. return 0;
  378. }
  379. static int cap_task_wait(struct task_struct *p)
  380. {
  381. return 0;
  382. }
  383. static int cap_task_kill(struct task_struct *p, struct siginfo *info,
  384. int sig, u32 secid)
  385. {
  386. return 0;
  387. }
  388. static void cap_task_to_inode(struct task_struct *p, struct inode *inode)
  389. {
  390. }
  391. static int cap_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
  392. {
  393. return 0;
  394. }
  395. static void cap_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
  396. {
  397. *secid = 0;
  398. }
  399. static int cap_msg_msg_alloc_security(struct msg_msg *msg)
  400. {
  401. return 0;
  402. }
  403. static void cap_msg_msg_free_security(struct msg_msg *msg)
  404. {
  405. }
  406. static int cap_msg_queue_alloc_security(struct msg_queue *msq)
  407. {
  408. return 0;
  409. }
  410. static void cap_msg_queue_free_security(struct msg_queue *msq)
  411. {
  412. }
  413. static int cap_msg_queue_associate(struct msg_queue *msq, int msqflg)
  414. {
  415. return 0;
  416. }
  417. static int cap_msg_queue_msgctl(struct msg_queue *msq, int cmd)
  418. {
  419. return 0;
  420. }
  421. static int cap_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
  422. int msgflg)
  423. {
  424. return 0;
  425. }
  426. static int cap_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
  427. struct task_struct *target, long type, int mode)
  428. {
  429. return 0;
  430. }
  431. static int cap_shm_alloc_security(struct shmid_kernel *shp)
  432. {
  433. return 0;
  434. }
  435. static void cap_shm_free_security(struct shmid_kernel *shp)
  436. {
  437. }
  438. static int cap_shm_associate(struct shmid_kernel *shp, int shmflg)
  439. {
  440. return 0;
  441. }
  442. static int cap_shm_shmctl(struct shmid_kernel *shp, int cmd)
  443. {
  444. return 0;
  445. }
  446. static int cap_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr,
  447. int shmflg)
  448. {
  449. return 0;
  450. }
  451. static int cap_sem_alloc_security(struct sem_array *sma)
  452. {
  453. return 0;
  454. }
  455. static void cap_sem_free_security(struct sem_array *sma)
  456. {
  457. }
  458. static int cap_sem_associate(struct sem_array *sma, int semflg)
  459. {
  460. return 0;
  461. }
  462. static int cap_sem_semctl(struct sem_array *sma, int cmd)
  463. {
  464. return 0;
  465. }
  466. static int cap_sem_semop(struct sem_array *sma, struct sembuf *sops,
  467. unsigned nsops, int alter)
  468. {
  469. return 0;
  470. }
  471. #ifdef CONFIG_SECURITY_NETWORK
  472. static int cap_unix_stream_connect(struct sock *sock, struct sock *other,
  473. struct sock *newsk)
  474. {
  475. return 0;
  476. }
  477. static int cap_unix_may_send(struct socket *sock, struct socket *other)
  478. {
  479. return 0;
  480. }
  481. static int cap_socket_create(int family, int type, int protocol, int kern)
  482. {
  483. return 0;
  484. }
  485. static int cap_socket_post_create(struct socket *sock, int family, int type,
  486. int protocol, int kern)
  487. {
  488. return 0;
  489. }
  490. static int cap_socket_bind(struct socket *sock, struct sockaddr *address,
  491. int addrlen)
  492. {
  493. return 0;
  494. }
  495. static int cap_socket_connect(struct socket *sock, struct sockaddr *address,
  496. int addrlen)
  497. {
  498. return 0;
  499. }
  500. static int cap_socket_listen(struct socket *sock, int backlog)
  501. {
  502. return 0;
  503. }
  504. static int cap_socket_accept(struct socket *sock, struct socket *newsock)
  505. {
  506. return 0;
  507. }
  508. static int cap_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
  509. {
  510. return 0;
  511. }
  512. static int cap_socket_recvmsg(struct socket *sock, struct msghdr *msg,
  513. int size, int flags)
  514. {
  515. return 0;
  516. }
  517. static int cap_socket_getsockname(struct socket *sock)
  518. {
  519. return 0;
  520. }
  521. static int cap_socket_getpeername(struct socket *sock)
  522. {
  523. return 0;
  524. }
  525. static int cap_socket_setsockopt(struct socket *sock, int level, int optname)
  526. {
  527. return 0;
  528. }
  529. static int cap_socket_getsockopt(struct socket *sock, int level, int optname)
  530. {
  531. return 0;
  532. }
  533. static int cap_socket_shutdown(struct socket *sock, int how)
  534. {
  535. return 0;
  536. }
  537. static int cap_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
  538. {
  539. return 0;
  540. }
  541. static int cap_socket_getpeersec_stream(struct socket *sock,
  542. char __user *optval,
  543. int __user *optlen, unsigned len)
  544. {
  545. return -ENOPROTOOPT;
  546. }
  547. static int cap_socket_getpeersec_dgram(struct socket *sock,
  548. struct sk_buff *skb, u32 *secid)
  549. {
  550. return -ENOPROTOOPT;
  551. }
  552. static int cap_sk_alloc_security(struct sock *sk, int family, gfp_t priority)
  553. {
  554. return 0;
  555. }
  556. static void cap_sk_free_security(struct sock *sk)
  557. {
  558. }
  559. static void cap_sk_clone_security(const struct sock *sk, struct sock *newsk)
  560. {
  561. }
  562. static void cap_sk_getsecid(struct sock *sk, u32 *secid)
  563. {
  564. }
  565. static void cap_sock_graft(struct sock *sk, struct socket *parent)
  566. {
  567. }
  568. static int cap_inet_conn_request(struct sock *sk, struct sk_buff *skb,
  569. struct request_sock *req)
  570. {
  571. return 0;
  572. }
  573. static void cap_inet_csk_clone(struct sock *newsk,
  574. const struct request_sock *req)
  575. {
  576. }
  577. static void cap_inet_conn_established(struct sock *sk, struct sk_buff *skb)
  578. {
  579. }
  580. static int cap_secmark_relabel_packet(u32 secid)
  581. {
  582. return 0;
  583. }
  584. static void cap_secmark_refcount_inc(void)
  585. {
  586. }
  587. static void cap_secmark_refcount_dec(void)
  588. {
  589. }
  590. static void cap_req_classify_flow(const struct request_sock *req,
  591. struct flowi *fl)
  592. {
  593. }
  594. static int cap_tun_dev_create(void)
  595. {
  596. return 0;
  597. }
  598. static void cap_tun_dev_post_create(struct sock *sk)
  599. {
  600. }
  601. static int cap_tun_dev_attach(struct sock *sk)
  602. {
  603. return 0;
  604. }
  605. #endif /* CONFIG_SECURITY_NETWORK */
  606. #ifdef CONFIG_SECURITY_NETWORK_XFRM
  607. static int cap_xfrm_policy_alloc_security(struct xfrm_sec_ctx **ctxp,
  608. struct xfrm_user_sec_ctx *sec_ctx)
  609. {
  610. return 0;
  611. }
  612. static int cap_xfrm_policy_clone_security(struct xfrm_sec_ctx *old_ctx,
  613. struct xfrm_sec_ctx **new_ctxp)
  614. {
  615. return 0;
  616. }
  617. static void cap_xfrm_policy_free_security(struct xfrm_sec_ctx *ctx)
  618. {
  619. }
  620. static int cap_xfrm_policy_delete_security(struct xfrm_sec_ctx *ctx)
  621. {
  622. return 0;
  623. }
  624. static int cap_xfrm_state_alloc(struct xfrm_state *x,
  625. struct xfrm_user_sec_ctx *sec_ctx)
  626. {
  627. return 0;
  628. }
  629. static int cap_xfrm_state_alloc_acquire(struct xfrm_state *x,
  630. struct xfrm_sec_ctx *polsec,
  631. u32 secid)
  632. {
  633. return 0;
  634. }
  635. static void cap_xfrm_state_free_security(struct xfrm_state *x)
  636. {
  637. }
  638. static int cap_xfrm_state_delete_security(struct xfrm_state *x)
  639. {
  640. return 0;
  641. }
  642. static int cap_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 sk_sid, u8 dir)
  643. {
  644. return 0;
  645. }
  646. static int cap_xfrm_state_pol_flow_match(struct xfrm_state *x,
  647. struct xfrm_policy *xp,
  648. const struct flowi *fl)
  649. {
  650. return 1;
  651. }
  652. static int cap_xfrm_decode_session(struct sk_buff *skb, u32 *fl, int ckall)
  653. {
  654. return 0;
  655. }
  656. #endif /* CONFIG_SECURITY_NETWORK_XFRM */
  657. static void cap_d_instantiate(struct dentry *dentry, struct inode *inode)
  658. {
  659. }
  660. static int cap_getprocattr(struct task_struct *p, char *name, char **value)
  661. {
  662. return -EINVAL;
  663. }
  664. static int cap_setprocattr(struct task_struct *p, char *name, void *value,
  665. size_t size)
  666. {
  667. return -EINVAL;
  668. }
  669. static int cap_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
  670. {
  671. return -EOPNOTSUPP;
  672. }
  673. static int cap_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
  674. {
  675. *secid = 0;
  676. return 0;
  677. }
  678. static void cap_release_secctx(char *secdata, u32 seclen)
  679. {
  680. }
  681. static int cap_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
  682. {
  683. return 0;
  684. }
  685. static int cap_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
  686. {
  687. return 0;
  688. }
  689. static int cap_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
  690. {
  691. return 0;
  692. }
  693. #ifdef CONFIG_KEYS
  694. static int cap_key_alloc(struct key *key, const struct cred *cred,
  695. unsigned long flags)
  696. {
  697. return 0;
  698. }
  699. static void cap_key_free(struct key *key)
  700. {
  701. }
  702. static int cap_key_permission(key_ref_t key_ref, const struct cred *cred,
  703. key_perm_t perm)
  704. {
  705. return 0;
  706. }
  707. static int cap_key_getsecurity(struct key *key, char **_buffer)
  708. {
  709. *_buffer = NULL;
  710. return 0;
  711. }
  712. #endif /* CONFIG_KEYS */
  713. #ifdef CONFIG_AUDIT
  714. static int cap_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
  715. {
  716. return 0;
  717. }
  718. static int cap_audit_rule_known(struct audit_krule *krule)
  719. {
  720. return 0;
  721. }
  722. static int cap_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
  723. struct audit_context *actx)
  724. {
  725. return 0;
  726. }
  727. static void cap_audit_rule_free(void *lsmrule)
  728. {
  729. }
  730. #endif /* CONFIG_AUDIT */
  731. #define set_to_cap_if_null(ops, function) \
  732. do { \
  733. if (!ops->function) { \
  734. ops->function = cap_##function; \
  735. pr_debug("Had to override the " #function \
  736. " security operation with the default.\n");\
  737. } \
  738. } while (0)
  739. void __init security_fixup_ops(struct security_operations *ops)
  740. {
  741. set_to_cap_if_null(ops, binder_set_context_mgr);
  742. set_to_cap_if_null(ops, binder_transaction);
  743. set_to_cap_if_null(ops, binder_transfer_binder);
  744. set_to_cap_if_null(ops, binder_transfer_file);
  745. set_to_cap_if_null(ops, ptrace_access_check);
  746. set_to_cap_if_null(ops, ptrace_traceme);
  747. set_to_cap_if_null(ops, capget);
  748. set_to_cap_if_null(ops, capset);
  749. set_to_cap_if_null(ops, capable);
  750. set_to_cap_if_null(ops, quotactl);
  751. set_to_cap_if_null(ops, quota_on);
  752. set_to_cap_if_null(ops, syslog);
  753. set_to_cap_if_null(ops, settime);
  754. set_to_cap_if_null(ops, vm_enough_memory);
  755. set_to_cap_if_null(ops, bprm_set_creds);
  756. set_to_cap_if_null(ops, bprm_committing_creds);
  757. set_to_cap_if_null(ops, bprm_committed_creds);
  758. set_to_cap_if_null(ops, bprm_check_security);
  759. set_to_cap_if_null(ops, bprm_secureexec);
  760. set_to_cap_if_null(ops, sb_alloc_security);
  761. set_to_cap_if_null(ops, sb_free_security);
  762. set_to_cap_if_null(ops, sb_copy_data);
  763. set_to_cap_if_null(ops, sb_remount);
  764. set_to_cap_if_null(ops, sb_kern_mount);
  765. set_to_cap_if_null(ops, sb_show_options);
  766. set_to_cap_if_null(ops, sb_statfs);
  767. set_to_cap_if_null(ops, sb_mount);
  768. set_to_cap_if_null(ops, sb_umount);
  769. set_to_cap_if_null(ops, sb_pivotroot);
  770. set_to_cap_if_null(ops, sb_set_mnt_opts);
  771. set_to_cap_if_null(ops, sb_clone_mnt_opts);
  772. set_to_cap_if_null(ops, sb_parse_opts_str);
  773. set_to_cap_if_null(ops, inode_alloc_security);
  774. set_to_cap_if_null(ops, inode_free_security);
  775. set_to_cap_if_null(ops, inode_init_security);
  776. set_to_cap_if_null(ops, inode_create);
  777. set_to_cap_if_null(ops, inode_link);
  778. set_to_cap_if_null(ops, inode_unlink);
  779. set_to_cap_if_null(ops, inode_symlink);
  780. set_to_cap_if_null(ops, inode_mkdir);
  781. set_to_cap_if_null(ops, inode_rmdir);
  782. set_to_cap_if_null(ops, inode_mknod);
  783. set_to_cap_if_null(ops, inode_rename);
  784. set_to_cap_if_null(ops, inode_readlink);
  785. set_to_cap_if_null(ops, inode_follow_link);
  786. set_to_cap_if_null(ops, inode_permission);
  787. set_to_cap_if_null(ops, inode_setattr);
  788. set_to_cap_if_null(ops, inode_getattr);
  789. set_to_cap_if_null(ops, inode_setxattr);
  790. set_to_cap_if_null(ops, inode_post_setxattr);
  791. set_to_cap_if_null(ops, inode_getxattr);
  792. set_to_cap_if_null(ops, inode_listxattr);
  793. set_to_cap_if_null(ops, inode_removexattr);
  794. set_to_cap_if_null(ops, inode_need_killpriv);
  795. set_to_cap_if_null(ops, inode_killpriv);
  796. set_to_cap_if_null(ops, inode_getsecurity);
  797. set_to_cap_if_null(ops, inode_setsecurity);
  798. set_to_cap_if_null(ops, inode_listsecurity);
  799. set_to_cap_if_null(ops, inode_getsecid);
  800. #ifdef CONFIG_SECURITY_PATH
  801. set_to_cap_if_null(ops, path_mknod);
  802. set_to_cap_if_null(ops, path_mkdir);
  803. set_to_cap_if_null(ops, path_rmdir);
  804. set_to_cap_if_null(ops, path_unlink);
  805. set_to_cap_if_null(ops, path_symlink);
  806. set_to_cap_if_null(ops, path_link);
  807. set_to_cap_if_null(ops, path_rename);
  808. set_to_cap_if_null(ops, path_truncate);
  809. set_to_cap_if_null(ops, path_chmod);
  810. set_to_cap_if_null(ops, path_chown);
  811. set_to_cap_if_null(ops, path_chroot);
  812. #endif
  813. set_to_cap_if_null(ops, file_permission);
  814. set_to_cap_if_null(ops, file_alloc_security);
  815. set_to_cap_if_null(ops, file_free_security);
  816. set_to_cap_if_null(ops, file_ioctl);
  817. set_to_cap_if_null(ops, mmap_addr);
  818. set_to_cap_if_null(ops, mmap_file);
  819. set_to_cap_if_null(ops, file_mprotect);
  820. set_to_cap_if_null(ops, file_lock);
  821. set_to_cap_if_null(ops, file_fcntl);
  822. set_to_cap_if_null(ops, file_set_fowner);
  823. set_to_cap_if_null(ops, file_send_sigiotask);
  824. set_to_cap_if_null(ops, file_receive);
  825. set_to_cap_if_null(ops, file_open);
  826. set_to_cap_if_null(ops, task_create);
  827. set_to_cap_if_null(ops, task_free);
  828. set_to_cap_if_null(ops, cred_alloc_blank);
  829. set_to_cap_if_null(ops, cred_free);
  830. set_to_cap_if_null(ops, cred_prepare);
  831. set_to_cap_if_null(ops, cred_transfer);
  832. set_to_cap_if_null(ops, cred_getsecid);
  833. set_to_cap_if_null(ops, kernel_act_as);
  834. set_to_cap_if_null(ops, kernel_create_files_as);
  835. set_to_cap_if_null(ops, kernel_module_request);
  836. set_to_cap_if_null(ops, kernel_module_from_file);
  837. set_to_cap_if_null(ops, task_fix_setuid);
  838. set_to_cap_if_null(ops, task_setpgid);
  839. set_to_cap_if_null(ops, task_getpgid);
  840. set_to_cap_if_null(ops, task_getsid);
  841. set_to_cap_if_null(ops, task_getsecid);
  842. set_to_cap_if_null(ops, task_setnice);
  843. set_to_cap_if_null(ops, task_setioprio);
  844. set_to_cap_if_null(ops, task_getioprio);
  845. set_to_cap_if_null(ops, task_setrlimit);
  846. set_to_cap_if_null(ops, task_setscheduler);
  847. set_to_cap_if_null(ops, task_getscheduler);
  848. set_to_cap_if_null(ops, task_movememory);
  849. set_to_cap_if_null(ops, task_wait);
  850. set_to_cap_if_null(ops, task_kill);
  851. set_to_cap_if_null(ops, task_prctl);
  852. set_to_cap_if_null(ops, task_to_inode);
  853. set_to_cap_if_null(ops, ipc_permission);
  854. set_to_cap_if_null(ops, ipc_getsecid);
  855. set_to_cap_if_null(ops, msg_msg_alloc_security);
  856. set_to_cap_if_null(ops, msg_msg_free_security);
  857. set_to_cap_if_null(ops, msg_queue_alloc_security);
  858. set_to_cap_if_null(ops, msg_queue_free_security);
  859. set_to_cap_if_null(ops, msg_queue_associate);
  860. set_to_cap_if_null(ops, msg_queue_msgctl);
  861. set_to_cap_if_null(ops, msg_queue_msgsnd);
  862. set_to_cap_if_null(ops, msg_queue_msgrcv);
  863. set_to_cap_if_null(ops, shm_alloc_security);
  864. set_to_cap_if_null(ops, shm_free_security);
  865. set_to_cap_if_null(ops, shm_associate);
  866. set_to_cap_if_null(ops, shm_shmctl);
  867. set_to_cap_if_null(ops, shm_shmat);
  868. set_to_cap_if_null(ops, sem_alloc_security);
  869. set_to_cap_if_null(ops, sem_free_security);
  870. set_to_cap_if_null(ops, sem_associate);
  871. set_to_cap_if_null(ops, sem_semctl);
  872. set_to_cap_if_null(ops, sem_semop);
  873. set_to_cap_if_null(ops, netlink_send);
  874. set_to_cap_if_null(ops, d_instantiate);
  875. set_to_cap_if_null(ops, getprocattr);
  876. set_to_cap_if_null(ops, setprocattr);
  877. set_to_cap_if_null(ops, secid_to_secctx);
  878. set_to_cap_if_null(ops, secctx_to_secid);
  879. set_to_cap_if_null(ops, release_secctx);
  880. set_to_cap_if_null(ops, inode_notifysecctx);
  881. set_to_cap_if_null(ops, inode_setsecctx);
  882. set_to_cap_if_null(ops, inode_getsecctx);
  883. #ifdef CONFIG_SECURITY_NETWORK
  884. set_to_cap_if_null(ops, unix_stream_connect);
  885. set_to_cap_if_null(ops, unix_may_send);
  886. set_to_cap_if_null(ops, socket_create);
  887. set_to_cap_if_null(ops, socket_post_create);
  888. set_to_cap_if_null(ops, socket_bind);
  889. set_to_cap_if_null(ops, socket_connect);
  890. set_to_cap_if_null(ops, socket_listen);
  891. set_to_cap_if_null(ops, socket_accept);
  892. set_to_cap_if_null(ops, socket_sendmsg);
  893. set_to_cap_if_null(ops, socket_recvmsg);
  894. set_to_cap_if_null(ops, socket_getsockname);
  895. set_to_cap_if_null(ops, socket_getpeername);
  896. set_to_cap_if_null(ops, socket_setsockopt);
  897. set_to_cap_if_null(ops, socket_getsockopt);
  898. set_to_cap_if_null(ops, socket_shutdown);
  899. set_to_cap_if_null(ops, socket_sock_rcv_skb);
  900. set_to_cap_if_null(ops, socket_getpeersec_stream);
  901. set_to_cap_if_null(ops, socket_getpeersec_dgram);
  902. set_to_cap_if_null(ops, sk_alloc_security);
  903. set_to_cap_if_null(ops, sk_free_security);
  904. set_to_cap_if_null(ops, sk_clone_security);
  905. set_to_cap_if_null(ops, sk_getsecid);
  906. set_to_cap_if_null(ops, sock_graft);
  907. set_to_cap_if_null(ops, inet_conn_request);
  908. set_to_cap_if_null(ops, inet_csk_clone);
  909. set_to_cap_if_null(ops, inet_conn_established);
  910. set_to_cap_if_null(ops, secmark_relabel_packet);
  911. set_to_cap_if_null(ops, secmark_refcount_inc);
  912. set_to_cap_if_null(ops, secmark_refcount_dec);
  913. set_to_cap_if_null(ops, req_classify_flow);
  914. set_to_cap_if_null(ops, tun_dev_create);
  915. set_to_cap_if_null(ops, tun_dev_post_create);
  916. set_to_cap_if_null(ops, tun_dev_attach);
  917. #endif /* CONFIG_SECURITY_NETWORK */
  918. #ifdef CONFIG_SECURITY_NETWORK_XFRM
  919. set_to_cap_if_null(ops, xfrm_policy_alloc_security);
  920. set_to_cap_if_null(ops, xfrm_policy_clone_security);
  921. set_to_cap_if_null(ops, xfrm_policy_free_security);
  922. set_to_cap_if_null(ops, xfrm_policy_delete_security);
  923. set_to_cap_if_null(ops, xfrm_state_alloc);
  924. set_to_cap_if_null(ops, xfrm_state_alloc_acquire);
  925. set_to_cap_if_null(ops, xfrm_state_free_security);
  926. set_to_cap_if_null(ops, xfrm_state_delete_security);
  927. set_to_cap_if_null(ops, xfrm_policy_lookup);
  928. set_to_cap_if_null(ops, xfrm_state_pol_flow_match);
  929. set_to_cap_if_null(ops, xfrm_decode_session);
  930. #endif /* CONFIG_SECURITY_NETWORK_XFRM */
  931. #ifdef CONFIG_KEYS
  932. set_to_cap_if_null(ops, key_alloc);
  933. set_to_cap_if_null(ops, key_free);
  934. set_to_cap_if_null(ops, key_permission);
  935. set_to_cap_if_null(ops, key_getsecurity);
  936. #endif /* CONFIG_KEYS */
  937. #ifdef CONFIG_AUDIT
  938. set_to_cap_if_null(ops, audit_rule_init);
  939. set_to_cap_if_null(ops, audit_rule_known);
  940. set_to_cap_if_null(ops, audit_rule_match);
  941. set_to_cap_if_null(ops, audit_rule_free);
  942. #endif
  943. }