blob: 71f9682bfb54bd6e99dd9eb517cc0d574c89d6d1 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Capabilities Linux Security Module
3 *
Miklos Szeredi5915eb52008-07-03 20:56:05 +02004 * This is the default security module in case no other module is loaded.
5 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07006 * 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
Linus Torvalds1da177e2005-04-16 15:20:36 -070013#include <linux/security.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070014
Eric Paris12b30522010-11-15 18:36:29 -050015static int cap_syslog(int type)
16{
17 return 0;
18}
19
Miklos Szeredi5915eb52008-07-03 20:56:05 +020020static int cap_quotactl(int cmds, int type, int id, struct super_block *sb)
21{
22 return 0;
23}
24
25static int cap_quota_on(struct dentry *dentry)
26{
27 return 0;
28}
29
Chihau Chaudce3a3d2010-07-16 12:11:54 -040030static int cap_bprm_check_security(struct linux_binprm *bprm)
Miklos Szeredi5915eb52008-07-03 20:56:05 +020031{
32 return 0;
33}
34
David Howellsa6f76f22008-11-14 10:39:24 +110035static void cap_bprm_committing_creds(struct linux_binprm *bprm)
Miklos Szeredi5915eb52008-07-03 20:56:05 +020036{
37}
38
David Howellsa6f76f22008-11-14 10:39:24 +110039static void cap_bprm_committed_creds(struct linux_binprm *bprm)
Miklos Szeredi5915eb52008-07-03 20:56:05 +020040{
41}
42
Miklos Szeredi5915eb52008-07-03 20:56:05 +020043static int cap_sb_alloc_security(struct super_block *sb)
44{
45 return 0;
46}
47
48static void cap_sb_free_security(struct super_block *sb)
49{
50}
51
52static int cap_sb_copy_data(char *orig, char *copy)
53{
54 return 0;
55}
56
Eric Parisff36fe22011-03-03 16:09:14 -050057static int cap_sb_remount(struct super_block *sb, void *data)
58{
59 return 0;
60}
61
James Morris12204e22008-12-19 10:44:42 +110062static int cap_sb_kern_mount(struct super_block *sb, int flags, void *data)
Miklos Szeredi5915eb52008-07-03 20:56:05 +020063{
64 return 0;
65}
66
67static int cap_sb_show_options(struct seq_file *m, struct super_block *sb)
68{
69 return 0;
70}
71
72static int cap_sb_statfs(struct dentry *dentry)
73{
74 return 0;
75}
76
Al Viro808d4e32012-10-11 11:42:01 -040077static int cap_sb_mount(const char *dev_name, struct path *path,
78 const char *type, unsigned long flags, void *data)
Miklos Szeredi5915eb52008-07-03 20:56:05 +020079{
80 return 0;
81}
82
Miklos Szeredi5915eb52008-07-03 20:56:05 +020083static int cap_sb_umount(struct vfsmount *mnt, int flags)
84{
85 return 0;
86}
87
Miklos Szeredi5915eb52008-07-03 20:56:05 +020088static int cap_sb_pivotroot(struct path *old_path, struct path *new_path)
89{
90 return 0;
91}
92
Miklos Szeredi5915eb52008-07-03 20:56:05 +020093static int cap_sb_set_mnt_opts(struct super_block *sb,
94 struct security_mnt_opts *opts)
95{
96 if (unlikely(opts->num_mnt_opts))
97 return -EOPNOTSUPP;
98 return 0;
99}
100
Jeff Layton094f7b62013-04-01 08:14:24 -0400101static int cap_sb_clone_mnt_opts(const struct super_block *oldsb,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200102 struct super_block *newsb)
103{
Jeff Layton094f7b62013-04-01 08:14:24 -0400104 return 0;
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200105}
106
107static int cap_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
108{
109 return 0;
110}
111
David Quigleyd47be3d2013-05-22 12:50:34 -0400112static int cap_dentry_init_security(struct dentry *dentry, int mode,
113 struct qstr *name, void **ctx,
114 u32 *ctxlen)
115{
116 return 0;
117}
118
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200119static int cap_inode_alloc_security(struct inode *inode)
120{
121 return 0;
122}
123
124static void cap_inode_free_security(struct inode *inode)
125{
126}
127
128static int cap_inode_init_security(struct inode *inode, struct inode *dir,
Eric Paris2a7dba32011-02-01 11:05:39 -0500129 const struct qstr *qstr, char **name,
130 void **value, size_t *len)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200131{
132 return -EOPNOTSUPP;
133}
134
135static int cap_inode_create(struct inode *inode, struct dentry *dentry,
Al Viro4acdaf22011-07-26 01:42:34 -0400136 umode_t mask)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200137{
138 return 0;
139}
140
141static int cap_inode_link(struct dentry *old_dentry, struct inode *inode,
142 struct dentry *new_dentry)
143{
144 return 0;
145}
146
147static int cap_inode_unlink(struct inode *inode, struct dentry *dentry)
148{
149 return 0;
150}
151
152static int cap_inode_symlink(struct inode *inode, struct dentry *dentry,
153 const char *name)
154{
155 return 0;
156}
157
158static int cap_inode_mkdir(struct inode *inode, struct dentry *dentry,
Al Viro18bb1db2011-07-26 01:41:39 -0400159 umode_t mask)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200160{
161 return 0;
162}
163
164static int cap_inode_rmdir(struct inode *inode, struct dentry *dentry)
165{
166 return 0;
167}
168
169static int cap_inode_mknod(struct inode *inode, struct dentry *dentry,
Al Viro1a67aaf2011-07-26 01:52:52 -0400170 umode_t mode, dev_t dev)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200171{
172 return 0;
173}
174
175static int cap_inode_rename(struct inode *old_inode, struct dentry *old_dentry,
176 struct inode *new_inode, struct dentry *new_dentry)
177{
178 return 0;
179}
180
181static int cap_inode_readlink(struct dentry *dentry)
182{
183 return 0;
184}
185
186static int cap_inode_follow_link(struct dentry *dentry,
187 struct nameidata *nameidata)
188{
189 return 0;
190}
191
Al Viroe74f71e2011-06-20 19:38:15 -0400192static int cap_inode_permission(struct inode *inode, int mask)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200193{
194 return 0;
195}
196
197static int cap_inode_setattr(struct dentry *dentry, struct iattr *iattr)
198{
199 return 0;
200}
201
202static int cap_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
203{
204 return 0;
205}
206
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200207static void cap_inode_post_setxattr(struct dentry *dentry, const char *name,
208 const void *value, size_t size, int flags)
209{
210}
211
212static int cap_inode_getxattr(struct dentry *dentry, const char *name)
213{
214 return 0;
215}
216
217static int cap_inode_listxattr(struct dentry *dentry)
218{
219 return 0;
220}
221
222static int cap_inode_getsecurity(const struct inode *inode, const char *name,
223 void **buffer, bool alloc)
224{
225 return -EOPNOTSUPP;
226}
227
228static int cap_inode_setsecurity(struct inode *inode, const char *name,
229 const void *value, size_t size, int flags)
230{
231 return -EOPNOTSUPP;
232}
233
234static int cap_inode_listsecurity(struct inode *inode, char *buffer,
235 size_t buffer_size)
236{
237 return 0;
238}
239
240static void cap_inode_getsecid(const struct inode *inode, u32 *secid)
241{
242 *secid = 0;
243}
244
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900245#ifdef CONFIG_SECURITY_PATH
Al Viro04fc66e2011-11-21 14:58:38 -0500246static int cap_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900247 unsigned int dev)
248{
249 return 0;
250}
251
Al Viro4572bef2011-11-21 14:56:21 -0500252static int cap_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900253{
254 return 0;
255}
256
257static int cap_path_rmdir(struct path *dir, struct dentry *dentry)
258{
259 return 0;
260}
261
262static int cap_path_unlink(struct path *dir, struct dentry *dentry)
263{
264 return 0;
265}
266
267static int cap_path_symlink(struct path *dir, struct dentry *dentry,
268 const char *old_name)
269{
270 return 0;
271}
272
273static int cap_path_link(struct dentry *old_dentry, struct path *new_dir,
274 struct dentry *new_dentry)
275{
276 return 0;
277}
278
279static int cap_path_rename(struct path *old_path, struct dentry *old_dentry,
280 struct path *new_path, struct dentry *new_dentry)
281{
282 return 0;
283}
284
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +0900285static int cap_path_truncate(struct path *path)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900286{
287 return 0;
288}
Tetsuo Handa89eda062009-10-04 21:49:47 +0900289
Al Virocdcf1162011-12-08 10:51:53 -0500290static int cap_path_chmod(struct path *path, umode_t mode)
Tetsuo Handa89eda062009-10-04 21:49:47 +0900291{
292 return 0;
293}
294
Eric W. Biedermand2b31ca2012-06-01 16:14:19 -0600295static int cap_path_chown(struct path *path, kuid_t uid, kgid_t gid)
Tetsuo Handa89eda062009-10-04 21:49:47 +0900296{
297 return 0;
298}
Tetsuo Handa8b8efb42009-10-04 21:49:48 +0900299
300static int cap_path_chroot(struct path *root)
301{
302 return 0;
303}
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900304#endif
305
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200306static int cap_file_permission(struct file *file, int mask)
307{
308 return 0;
309}
310
311static int cap_file_alloc_security(struct file *file)
312{
313 return 0;
314}
315
316static void cap_file_free_security(struct file *file)
317{
318}
319
320static int cap_file_ioctl(struct file *file, unsigned int command,
321 unsigned long arg)
322{
323 return 0;
324}
325
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200326static int cap_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
327 unsigned long prot)
328{
329 return 0;
330}
331
332static int cap_file_lock(struct file *file, unsigned int cmd)
333{
334 return 0;
335}
336
337static int cap_file_fcntl(struct file *file, unsigned int cmd,
338 unsigned long arg)
339{
340 return 0;
341}
342
343static int cap_file_set_fowner(struct file *file)
344{
345 return 0;
346}
347
348static int cap_file_send_sigiotask(struct task_struct *tsk,
349 struct fown_struct *fown, int sig)
350{
351 return 0;
352}
353
354static int cap_file_receive(struct file *file)
355{
356 return 0;
357}
358
Eric Paris83d49852012-04-04 13:45:40 -0400359static int cap_file_open(struct file *file, const struct cred *cred)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200360{
361 return 0;
362}
363
364static int cap_task_create(unsigned long clone_flags)
365{
366 return 0;
367}
368
Kees Cook1a2a4d02011-12-21 12:17:03 -0800369static void cap_task_free(struct task_struct *task)
370{
371}
372
David Howellsee18d642009-09-02 09:14:21 +0100373static int cap_cred_alloc_blank(struct cred *cred, gfp_t gfp)
374{
375 return 0;
376}
377
David Howellsd84f4f92008-11-14 10:39:23 +1100378static void cap_cred_free(struct cred *cred)
379{
380}
381
382static int cap_cred_prepare(struct cred *new, const struct cred *old, gfp_t gfp)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200383{
384 return 0;
385}
386
David Howellsee18d642009-09-02 09:14:21 +0100387static void cap_cred_transfer(struct cred *new, const struct cred *old)
388{
389}
390
David Howells3a3b7ce2008-11-14 10:39:28 +1100391static int cap_kernel_act_as(struct cred *new, u32 secid)
392{
393 return 0;
394}
395
396static int cap_kernel_create_files_as(struct cred *new, struct inode *inode)
397{
398 return 0;
399}
400
Eric Parisdd8dbf22009-11-03 16:35:32 +1100401static int cap_kernel_module_request(char *kmod_name)
Eric Paris91884992009-08-13 09:44:57 -0400402{
403 return 0;
404}
405
Kees Cook2e72d512012-10-16 07:32:07 +1030406static int cap_kernel_module_from_file(struct file *file)
407{
408 return 0;
409}
410
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200411static int cap_task_setpgid(struct task_struct *p, pid_t pgid)
412{
413 return 0;
414}
415
416static int cap_task_getpgid(struct task_struct *p)
417{
418 return 0;
419}
420
421static int cap_task_getsid(struct task_struct *p)
422{
423 return 0;
424}
425
426static void cap_task_getsecid(struct task_struct *p, u32 *secid)
427{
428 *secid = 0;
429}
430
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200431static int cap_task_getioprio(struct task_struct *p)
432{
433 return 0;
434}
435
Jiri Slaby8fd00b42009-08-26 18:41:16 +0200436static int cap_task_setrlimit(struct task_struct *p, unsigned int resource,
437 struct rlimit *new_rlim)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200438{
439 return 0;
440}
441
442static int cap_task_getscheduler(struct task_struct *p)
443{
444 return 0;
445}
446
447static int cap_task_movememory(struct task_struct *p)
448{
449 return 0;
450}
451
452static int cap_task_wait(struct task_struct *p)
453{
454 return 0;
455}
456
457static int cap_task_kill(struct task_struct *p, struct siginfo *info,
458 int sig, u32 secid)
459{
460 return 0;
461}
462
463static void cap_task_to_inode(struct task_struct *p, struct inode *inode)
464{
465}
466
467static int cap_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
468{
469 return 0;
470}
471
472static void cap_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
473{
474 *secid = 0;
475}
476
477static int cap_msg_msg_alloc_security(struct msg_msg *msg)
478{
479 return 0;
480}
481
482static void cap_msg_msg_free_security(struct msg_msg *msg)
483{
484}
485
486static int cap_msg_queue_alloc_security(struct msg_queue *msq)
487{
488 return 0;
489}
490
491static void cap_msg_queue_free_security(struct msg_queue *msq)
492{
493}
494
495static int cap_msg_queue_associate(struct msg_queue *msq, int msqflg)
496{
497 return 0;
498}
499
500static int cap_msg_queue_msgctl(struct msg_queue *msq, int cmd)
501{
502 return 0;
503}
504
505static int cap_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
506 int msgflg)
507{
508 return 0;
509}
510
511static int cap_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
512 struct task_struct *target, long type, int mode)
513{
514 return 0;
515}
516
517static int cap_shm_alloc_security(struct shmid_kernel *shp)
518{
519 return 0;
520}
521
522static void cap_shm_free_security(struct shmid_kernel *shp)
523{
524}
525
526static int cap_shm_associate(struct shmid_kernel *shp, int shmflg)
527{
528 return 0;
529}
530
531static int cap_shm_shmctl(struct shmid_kernel *shp, int cmd)
532{
533 return 0;
534}
535
536static int cap_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr,
537 int shmflg)
538{
539 return 0;
540}
541
542static int cap_sem_alloc_security(struct sem_array *sma)
543{
544 return 0;
545}
546
547static void cap_sem_free_security(struct sem_array *sma)
548{
549}
550
551static int cap_sem_associate(struct sem_array *sma, int semflg)
552{
553 return 0;
554}
555
556static int cap_sem_semctl(struct sem_array *sma, int cmd)
557{
558 return 0;
559}
560
561static int cap_sem_semop(struct sem_array *sma, struct sembuf *sops,
562 unsigned nsops, int alter)
563{
564 return 0;
565}
566
567#ifdef CONFIG_SECURITY_NETWORK
David S. Miller3610cda2011-01-05 15:38:53 -0800568static int cap_unix_stream_connect(struct sock *sock, struct sock *other,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200569 struct sock *newsk)
570{
571 return 0;
572}
573
574static int cap_unix_may_send(struct socket *sock, struct socket *other)
575{
576 return 0;
577}
578
579static int cap_socket_create(int family, int type, int protocol, int kern)
580{
581 return 0;
582}
583
584static int cap_socket_post_create(struct socket *sock, int family, int type,
585 int protocol, int kern)
586{
587 return 0;
588}
589
590static int cap_socket_bind(struct socket *sock, struct sockaddr *address,
591 int addrlen)
592{
593 return 0;
594}
595
596static int cap_socket_connect(struct socket *sock, struct sockaddr *address,
597 int addrlen)
598{
599 return 0;
600}
601
602static int cap_socket_listen(struct socket *sock, int backlog)
603{
604 return 0;
605}
606
607static int cap_socket_accept(struct socket *sock, struct socket *newsock)
608{
609 return 0;
610}
611
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200612static int cap_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
613{
614 return 0;
615}
616
617static int cap_socket_recvmsg(struct socket *sock, struct msghdr *msg,
618 int size, int flags)
619{
620 return 0;
621}
622
623static int cap_socket_getsockname(struct socket *sock)
624{
625 return 0;
626}
627
628static int cap_socket_getpeername(struct socket *sock)
629{
630 return 0;
631}
632
633static int cap_socket_setsockopt(struct socket *sock, int level, int optname)
634{
635 return 0;
636}
637
638static int cap_socket_getsockopt(struct socket *sock, int level, int optname)
639{
640 return 0;
641}
642
643static int cap_socket_shutdown(struct socket *sock, int how)
644{
645 return 0;
646}
647
648static int cap_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
649{
650 return 0;
651}
652
653static int cap_socket_getpeersec_stream(struct socket *sock,
654 char __user *optval,
655 int __user *optlen, unsigned len)
656{
657 return -ENOPROTOOPT;
658}
659
660static int cap_socket_getpeersec_dgram(struct socket *sock,
661 struct sk_buff *skb, u32 *secid)
662{
663 return -ENOPROTOOPT;
664}
665
666static int cap_sk_alloc_security(struct sock *sk, int family, gfp_t priority)
667{
668 return 0;
669}
670
671static void cap_sk_free_security(struct sock *sk)
672{
673}
674
675static void cap_sk_clone_security(const struct sock *sk, struct sock *newsk)
676{
677}
678
679static void cap_sk_getsecid(struct sock *sk, u32 *secid)
680{
681}
682
683static void cap_sock_graft(struct sock *sk, struct socket *parent)
684{
685}
686
687static int cap_inet_conn_request(struct sock *sk, struct sk_buff *skb,
688 struct request_sock *req)
689{
690 return 0;
691}
692
693static void cap_inet_csk_clone(struct sock *newsk,
694 const struct request_sock *req)
695{
696}
697
698static void cap_inet_conn_established(struct sock *sk, struct sk_buff *skb)
699{
700}
701
Eric Paris2606fd12010-10-13 16:24:41 -0400702static int cap_secmark_relabel_packet(u32 secid)
703{
704 return 0;
705}
Paul Moore2b980db2009-08-28 18:12:43 -0400706
Eric Paris2606fd12010-10-13 16:24:41 -0400707static void cap_secmark_refcount_inc(void)
708{
709}
710
711static void cap_secmark_refcount_dec(void)
712{
713}
Paul Moore2b980db2009-08-28 18:12:43 -0400714
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200715static void cap_req_classify_flow(const struct request_sock *req,
716 struct flowi *fl)
717{
718}
Paul Moore2b980db2009-08-28 18:12:43 -0400719
Paul Moore5dbbaf22013-01-14 07:12:19 +0000720static int cap_tun_dev_alloc_security(void **security)
721{
722 return 0;
723}
724
725static void cap_tun_dev_free_security(void *security)
726{
727}
728
Paul Moore2b980db2009-08-28 18:12:43 -0400729static int cap_tun_dev_create(void)
730{
731 return 0;
732}
733
Paul Moore5dbbaf22013-01-14 07:12:19 +0000734static int cap_tun_dev_attach_queue(void *security)
Paul Moore2b980db2009-08-28 18:12:43 -0400735{
Paul Moore5dbbaf22013-01-14 07:12:19 +0000736 return 0;
Paul Moore2b980db2009-08-28 18:12:43 -0400737}
738
Paul Moore5dbbaf22013-01-14 07:12:19 +0000739static int cap_tun_dev_attach(struct sock *sk, void *security)
740{
741 return 0;
742}
743
744static int cap_tun_dev_open(void *security)
Paul Moore2b980db2009-08-28 18:12:43 -0400745{
746 return 0;
747}
Eric Dumazetca10b9e2013-04-08 17:58:11 +0000748
749static void cap_skb_owned_by(struct sk_buff *skb, struct sock *sk)
750{
751}
752
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200753#endif /* CONFIG_SECURITY_NETWORK */
754
755#ifdef CONFIG_SECURITY_NETWORK_XFRM
756static int cap_xfrm_policy_alloc_security(struct xfrm_sec_ctx **ctxp,
757 struct xfrm_user_sec_ctx *sec_ctx)
758{
759 return 0;
760}
761
762static int cap_xfrm_policy_clone_security(struct xfrm_sec_ctx *old_ctx,
763 struct xfrm_sec_ctx **new_ctxp)
764{
765 return 0;
766}
767
768static void cap_xfrm_policy_free_security(struct xfrm_sec_ctx *ctx)
769{
770}
771
772static int cap_xfrm_policy_delete_security(struct xfrm_sec_ctx *ctx)
773{
774 return 0;
775}
776
777static int cap_xfrm_state_alloc_security(struct xfrm_state *x,
778 struct xfrm_user_sec_ctx *sec_ctx,
779 u32 secid)
780{
781 return 0;
782}
783
784static void cap_xfrm_state_free_security(struct xfrm_state *x)
785{
786}
787
788static int cap_xfrm_state_delete_security(struct xfrm_state *x)
789{
790 return 0;
791}
792
793static int cap_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 sk_sid, u8 dir)
794{
795 return 0;
796}
797
798static int cap_xfrm_state_pol_flow_match(struct xfrm_state *x,
799 struct xfrm_policy *xp,
David S. Millere33f7702011-02-22 18:13:15 -0800800 const struct flowi *fl)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200801{
802 return 1;
803}
804
805static int cap_xfrm_decode_session(struct sk_buff *skb, u32 *fl, int ckall)
806{
807 return 0;
808}
809
810#endif /* CONFIG_SECURITY_NETWORK_XFRM */
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200811static void cap_d_instantiate(struct dentry *dentry, struct inode *inode)
812{
813}
814
815static int cap_getprocattr(struct task_struct *p, char *name, char **value)
816{
817 return -EINVAL;
818}
819
820static int cap_setprocattr(struct task_struct *p, char *name, void *value,
821 size_t size)
822{
823 return -EINVAL;
824}
825
David Quigley746df9b2013-05-22 12:50:35 -0400826static int cap_ismaclabel(const char *name)
827{
828 return 0;
829}
830
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200831static int cap_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
832{
833 return -EOPNOTSUPP;
834}
835
836static int cap_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
837{
Eric Paris2606fd12010-10-13 16:24:41 -0400838 *secid = 0;
839 return 0;
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200840}
841
842static void cap_release_secctx(char *secdata, u32 seclen)
843{
844}
845
David P. Quigley1ee65e32009-09-03 14:25:57 -0400846static int cap_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
847{
848 return 0;
849}
850
851static int cap_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
852{
853 return 0;
854}
855
856static int cap_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
857{
858 return 0;
859}
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200860#ifdef CONFIG_KEYS
David Howellsd84f4f92008-11-14 10:39:23 +1100861static int cap_key_alloc(struct key *key, const struct cred *cred,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200862 unsigned long flags)
863{
864 return 0;
865}
866
867static void cap_key_free(struct key *key)
868{
869}
870
David Howellsd84f4f92008-11-14 10:39:23 +1100871static int cap_key_permission(key_ref_t key_ref, const struct cred *cred,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200872 key_perm_t perm)
873{
874 return 0;
875}
876
877static int cap_key_getsecurity(struct key *key, char **_buffer)
878{
879 *_buffer = NULL;
880 return 0;
881}
882
883#endif /* CONFIG_KEYS */
884
885#ifdef CONFIG_AUDIT
886static int cap_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
887{
888 return 0;
889}
890
891static int cap_audit_rule_known(struct audit_krule *krule)
892{
893 return 0;
894}
895
896static int cap_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
897 struct audit_context *actx)
898{
899 return 0;
900}
901
902static void cap_audit_rule_free(void *lsmrule)
903{
904}
905#endif /* CONFIG_AUDIT */
906
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200907#define set_to_cap_if_null(ops, function) \
908 do { \
909 if (!ops->function) { \
910 ops->function = cap_##function; \
911 pr_debug("Had to override the " #function \
912 " security operation with the default.\n");\
913 } \
914 } while (0)
915
Tetsuo Handac80901f2010-05-14 12:01:26 +0900916void __init security_fixup_ops(struct security_operations *ops)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200917{
Ingo Molnar9e488582009-05-07 19:26:19 +1000918 set_to_cap_if_null(ops, ptrace_access_check);
David Howells5cd9c582008-08-14 11:37:28 +0100919 set_to_cap_if_null(ops, ptrace_traceme);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200920 set_to_cap_if_null(ops, capget);
David Howellsd84f4f92008-11-14 10:39:23 +1100921 set_to_cap_if_null(ops, capset);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200922 set_to_cap_if_null(ops, capable);
923 set_to_cap_if_null(ops, quotactl);
924 set_to_cap_if_null(ops, quota_on);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200925 set_to_cap_if_null(ops, syslog);
926 set_to_cap_if_null(ops, settime);
927 set_to_cap_if_null(ops, vm_enough_memory);
David Howellsa6f76f22008-11-14 10:39:24 +1100928 set_to_cap_if_null(ops, bprm_set_creds);
929 set_to_cap_if_null(ops, bprm_committing_creds);
930 set_to_cap_if_null(ops, bprm_committed_creds);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200931 set_to_cap_if_null(ops, bprm_check_security);
932 set_to_cap_if_null(ops, bprm_secureexec);
933 set_to_cap_if_null(ops, sb_alloc_security);
934 set_to_cap_if_null(ops, sb_free_security);
935 set_to_cap_if_null(ops, sb_copy_data);
Eric Parisff36fe22011-03-03 16:09:14 -0500936 set_to_cap_if_null(ops, sb_remount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200937 set_to_cap_if_null(ops, sb_kern_mount);
938 set_to_cap_if_null(ops, sb_show_options);
939 set_to_cap_if_null(ops, sb_statfs);
940 set_to_cap_if_null(ops, sb_mount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200941 set_to_cap_if_null(ops, sb_umount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200942 set_to_cap_if_null(ops, sb_pivotroot);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200943 set_to_cap_if_null(ops, sb_set_mnt_opts);
944 set_to_cap_if_null(ops, sb_clone_mnt_opts);
945 set_to_cap_if_null(ops, sb_parse_opts_str);
David Quigleyd47be3d2013-05-22 12:50:34 -0400946 set_to_cap_if_null(ops, dentry_init_security);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200947 set_to_cap_if_null(ops, inode_alloc_security);
948 set_to_cap_if_null(ops, inode_free_security);
949 set_to_cap_if_null(ops, inode_init_security);
950 set_to_cap_if_null(ops, inode_create);
951 set_to_cap_if_null(ops, inode_link);
952 set_to_cap_if_null(ops, inode_unlink);
953 set_to_cap_if_null(ops, inode_symlink);
954 set_to_cap_if_null(ops, inode_mkdir);
955 set_to_cap_if_null(ops, inode_rmdir);
956 set_to_cap_if_null(ops, inode_mknod);
957 set_to_cap_if_null(ops, inode_rename);
958 set_to_cap_if_null(ops, inode_readlink);
959 set_to_cap_if_null(ops, inode_follow_link);
960 set_to_cap_if_null(ops, inode_permission);
961 set_to_cap_if_null(ops, inode_setattr);
962 set_to_cap_if_null(ops, inode_getattr);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200963 set_to_cap_if_null(ops, inode_setxattr);
964 set_to_cap_if_null(ops, inode_post_setxattr);
965 set_to_cap_if_null(ops, inode_getxattr);
966 set_to_cap_if_null(ops, inode_listxattr);
967 set_to_cap_if_null(ops, inode_removexattr);
968 set_to_cap_if_null(ops, inode_need_killpriv);
969 set_to_cap_if_null(ops, inode_killpriv);
970 set_to_cap_if_null(ops, inode_getsecurity);
971 set_to_cap_if_null(ops, inode_setsecurity);
972 set_to_cap_if_null(ops, inode_listsecurity);
973 set_to_cap_if_null(ops, inode_getsecid);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900974#ifdef CONFIG_SECURITY_PATH
975 set_to_cap_if_null(ops, path_mknod);
976 set_to_cap_if_null(ops, path_mkdir);
977 set_to_cap_if_null(ops, path_rmdir);
978 set_to_cap_if_null(ops, path_unlink);
979 set_to_cap_if_null(ops, path_symlink);
980 set_to_cap_if_null(ops, path_link);
981 set_to_cap_if_null(ops, path_rename);
982 set_to_cap_if_null(ops, path_truncate);
Tetsuo Handa89eda062009-10-04 21:49:47 +0900983 set_to_cap_if_null(ops, path_chmod);
984 set_to_cap_if_null(ops, path_chown);
Tetsuo Handa8b8efb42009-10-04 21:49:48 +0900985 set_to_cap_if_null(ops, path_chroot);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900986#endif
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200987 set_to_cap_if_null(ops, file_permission);
988 set_to_cap_if_null(ops, file_alloc_security);
989 set_to_cap_if_null(ops, file_free_security);
990 set_to_cap_if_null(ops, file_ioctl);
Al Viroe5467852012-05-30 13:30:51 -0400991 set_to_cap_if_null(ops, mmap_addr);
992 set_to_cap_if_null(ops, mmap_file);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200993 set_to_cap_if_null(ops, file_mprotect);
994 set_to_cap_if_null(ops, file_lock);
995 set_to_cap_if_null(ops, file_fcntl);
996 set_to_cap_if_null(ops, file_set_fowner);
997 set_to_cap_if_null(ops, file_send_sigiotask);
998 set_to_cap_if_null(ops, file_receive);
Eric Paris83d49852012-04-04 13:45:40 -0400999 set_to_cap_if_null(ops, file_open);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001000 set_to_cap_if_null(ops, task_create);
Kees Cook1a2a4d02011-12-21 12:17:03 -08001001 set_to_cap_if_null(ops, task_free);
David Howellsee18d642009-09-02 09:14:21 +01001002 set_to_cap_if_null(ops, cred_alloc_blank);
David Howellsf1752ee2008-11-14 10:39:17 +11001003 set_to_cap_if_null(ops, cred_free);
David Howellsd84f4f92008-11-14 10:39:23 +11001004 set_to_cap_if_null(ops, cred_prepare);
David Howellsee18d642009-09-02 09:14:21 +01001005 set_to_cap_if_null(ops, cred_transfer);
David Howells3a3b7ce2008-11-14 10:39:28 +11001006 set_to_cap_if_null(ops, kernel_act_as);
1007 set_to_cap_if_null(ops, kernel_create_files_as);
Eric Paris91884992009-08-13 09:44:57 -04001008 set_to_cap_if_null(ops, kernel_module_request);
Kees Cook2e72d512012-10-16 07:32:07 +10301009 set_to_cap_if_null(ops, kernel_module_from_file);
David Howellsd84f4f92008-11-14 10:39:23 +11001010 set_to_cap_if_null(ops, task_fix_setuid);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001011 set_to_cap_if_null(ops, task_setpgid);
1012 set_to_cap_if_null(ops, task_getpgid);
1013 set_to_cap_if_null(ops, task_getsid);
1014 set_to_cap_if_null(ops, task_getsecid);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001015 set_to_cap_if_null(ops, task_setnice);
1016 set_to_cap_if_null(ops, task_setioprio);
1017 set_to_cap_if_null(ops, task_getioprio);
1018 set_to_cap_if_null(ops, task_setrlimit);
1019 set_to_cap_if_null(ops, task_setscheduler);
1020 set_to_cap_if_null(ops, task_getscheduler);
1021 set_to_cap_if_null(ops, task_movememory);
1022 set_to_cap_if_null(ops, task_wait);
1023 set_to_cap_if_null(ops, task_kill);
1024 set_to_cap_if_null(ops, task_prctl);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001025 set_to_cap_if_null(ops, task_to_inode);
1026 set_to_cap_if_null(ops, ipc_permission);
1027 set_to_cap_if_null(ops, ipc_getsecid);
1028 set_to_cap_if_null(ops, msg_msg_alloc_security);
1029 set_to_cap_if_null(ops, msg_msg_free_security);
1030 set_to_cap_if_null(ops, msg_queue_alloc_security);
1031 set_to_cap_if_null(ops, msg_queue_free_security);
1032 set_to_cap_if_null(ops, msg_queue_associate);
1033 set_to_cap_if_null(ops, msg_queue_msgctl);
1034 set_to_cap_if_null(ops, msg_queue_msgsnd);
1035 set_to_cap_if_null(ops, msg_queue_msgrcv);
1036 set_to_cap_if_null(ops, shm_alloc_security);
1037 set_to_cap_if_null(ops, shm_free_security);
1038 set_to_cap_if_null(ops, shm_associate);
1039 set_to_cap_if_null(ops, shm_shmctl);
1040 set_to_cap_if_null(ops, shm_shmat);
1041 set_to_cap_if_null(ops, sem_alloc_security);
1042 set_to_cap_if_null(ops, sem_free_security);
1043 set_to_cap_if_null(ops, sem_associate);
1044 set_to_cap_if_null(ops, sem_semctl);
1045 set_to_cap_if_null(ops, sem_semop);
1046 set_to_cap_if_null(ops, netlink_send);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001047 set_to_cap_if_null(ops, d_instantiate);
1048 set_to_cap_if_null(ops, getprocattr);
1049 set_to_cap_if_null(ops, setprocattr);
David Quigley746df9b2013-05-22 12:50:35 -04001050 set_to_cap_if_null(ops, ismaclabel);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001051 set_to_cap_if_null(ops, secid_to_secctx);
1052 set_to_cap_if_null(ops, secctx_to_secid);
1053 set_to_cap_if_null(ops, release_secctx);
David P. Quigley1ee65e32009-09-03 14:25:57 -04001054 set_to_cap_if_null(ops, inode_notifysecctx);
1055 set_to_cap_if_null(ops, inode_setsecctx);
1056 set_to_cap_if_null(ops, inode_getsecctx);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001057#ifdef CONFIG_SECURITY_NETWORK
1058 set_to_cap_if_null(ops, unix_stream_connect);
1059 set_to_cap_if_null(ops, unix_may_send);
1060 set_to_cap_if_null(ops, socket_create);
1061 set_to_cap_if_null(ops, socket_post_create);
1062 set_to_cap_if_null(ops, socket_bind);
1063 set_to_cap_if_null(ops, socket_connect);
1064 set_to_cap_if_null(ops, socket_listen);
1065 set_to_cap_if_null(ops, socket_accept);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001066 set_to_cap_if_null(ops, socket_sendmsg);
1067 set_to_cap_if_null(ops, socket_recvmsg);
1068 set_to_cap_if_null(ops, socket_getsockname);
1069 set_to_cap_if_null(ops, socket_getpeername);
1070 set_to_cap_if_null(ops, socket_setsockopt);
1071 set_to_cap_if_null(ops, socket_getsockopt);
1072 set_to_cap_if_null(ops, socket_shutdown);
1073 set_to_cap_if_null(ops, socket_sock_rcv_skb);
1074 set_to_cap_if_null(ops, socket_getpeersec_stream);
1075 set_to_cap_if_null(ops, socket_getpeersec_dgram);
1076 set_to_cap_if_null(ops, sk_alloc_security);
1077 set_to_cap_if_null(ops, sk_free_security);
1078 set_to_cap_if_null(ops, sk_clone_security);
1079 set_to_cap_if_null(ops, sk_getsecid);
1080 set_to_cap_if_null(ops, sock_graft);
1081 set_to_cap_if_null(ops, inet_conn_request);
1082 set_to_cap_if_null(ops, inet_csk_clone);
1083 set_to_cap_if_null(ops, inet_conn_established);
Eric Paris2606fd12010-10-13 16:24:41 -04001084 set_to_cap_if_null(ops, secmark_relabel_packet);
1085 set_to_cap_if_null(ops, secmark_refcount_inc);
1086 set_to_cap_if_null(ops, secmark_refcount_dec);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001087 set_to_cap_if_null(ops, req_classify_flow);
Paul Moore5dbbaf22013-01-14 07:12:19 +00001088 set_to_cap_if_null(ops, tun_dev_alloc_security);
1089 set_to_cap_if_null(ops, tun_dev_free_security);
Paul Moore2b980db2009-08-28 18:12:43 -04001090 set_to_cap_if_null(ops, tun_dev_create);
Paul Moore5dbbaf22013-01-14 07:12:19 +00001091 set_to_cap_if_null(ops, tun_dev_open);
1092 set_to_cap_if_null(ops, tun_dev_attach_queue);
Paul Moore2b980db2009-08-28 18:12:43 -04001093 set_to_cap_if_null(ops, tun_dev_attach);
Eric Dumazetca10b9e2013-04-08 17:58:11 +00001094 set_to_cap_if_null(ops, skb_owned_by);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001095#endif /* CONFIG_SECURITY_NETWORK */
1096#ifdef CONFIG_SECURITY_NETWORK_XFRM
1097 set_to_cap_if_null(ops, xfrm_policy_alloc_security);
1098 set_to_cap_if_null(ops, xfrm_policy_clone_security);
1099 set_to_cap_if_null(ops, xfrm_policy_free_security);
1100 set_to_cap_if_null(ops, xfrm_policy_delete_security);
1101 set_to_cap_if_null(ops, xfrm_state_alloc_security);
1102 set_to_cap_if_null(ops, xfrm_state_free_security);
1103 set_to_cap_if_null(ops, xfrm_state_delete_security);
1104 set_to_cap_if_null(ops, xfrm_policy_lookup);
1105 set_to_cap_if_null(ops, xfrm_state_pol_flow_match);
1106 set_to_cap_if_null(ops, xfrm_decode_session);
1107#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1108#ifdef CONFIG_KEYS
1109 set_to_cap_if_null(ops, key_alloc);
1110 set_to_cap_if_null(ops, key_free);
1111 set_to_cap_if_null(ops, key_permission);
1112 set_to_cap_if_null(ops, key_getsecurity);
1113#endif /* CONFIG_KEYS */
1114#ifdef CONFIG_AUDIT
1115 set_to_cap_if_null(ops, audit_rule_init);
1116 set_to_cap_if_null(ops, audit_rule_known);
1117 set_to_cap_if_null(ops, audit_rule_match);
1118 set_to_cap_if_null(ops, audit_rule_free);
1119#endif
1120}