blob: 8265d48f2cb3d6e7599ea430648fd553a38e1457 [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
Stephen Smalley54eb16c2012-11-05 08:15:34 -050015static int cap_binder_set_context_mgr(struct task_struct *mgr)
16{
17 return 0;
18}
19
20static int cap_binder_transaction(struct task_struct *from, struct task_struct *to)
21{
22 return 0;
23}
24
25static int cap_binder_transfer_binder(struct task_struct *from, struct task_struct *to)
26{
27 return 0;
28}
29
30static int cap_binder_transfer_file(struct task_struct *from, struct task_struct *to, struct file *file)
31{
32 return 0;
33}
34
Eric Paris12b30522010-11-15 18:36:29 -050035static int cap_syslog(int type)
36{
37 return 0;
38}
39
Miklos Szeredi5915eb52008-07-03 20:56:05 +020040static int cap_quotactl(int cmds, int type, int id, struct super_block *sb)
41{
42 return 0;
43}
44
45static int cap_quota_on(struct dentry *dentry)
46{
47 return 0;
48}
49
Chihau Chaudce3a3d2010-07-16 12:11:54 -040050static int cap_bprm_check_security(struct linux_binprm *bprm)
Miklos Szeredi5915eb52008-07-03 20:56:05 +020051{
52 return 0;
53}
54
David Howellsa6f76f22008-11-14 10:39:24 +110055static void cap_bprm_committing_creds(struct linux_binprm *bprm)
Miklos Szeredi5915eb52008-07-03 20:56:05 +020056{
57}
58
David Howellsa6f76f22008-11-14 10:39:24 +110059static void cap_bprm_committed_creds(struct linux_binprm *bprm)
Miklos Szeredi5915eb52008-07-03 20:56:05 +020060{
61}
62
Miklos Szeredi5915eb52008-07-03 20:56:05 +020063static int cap_sb_alloc_security(struct super_block *sb)
64{
65 return 0;
66}
67
68static void cap_sb_free_security(struct super_block *sb)
69{
70}
71
72static int cap_sb_copy_data(char *orig, char *copy)
73{
74 return 0;
75}
76
Eric Parisff36fe22011-03-03 16:09:14 -050077static int cap_sb_remount(struct super_block *sb, void *data)
78{
79 return 0;
80}
81
James Morris12204e22008-12-19 10:44:42 +110082static int cap_sb_kern_mount(struct super_block *sb, int flags, void *data)
Miklos Szeredi5915eb52008-07-03 20:56:05 +020083{
84 return 0;
85}
86
87static int cap_sb_show_options(struct seq_file *m, struct super_block *sb)
88{
89 return 0;
90}
91
92static int cap_sb_statfs(struct dentry *dentry)
93{
94 return 0;
95}
96
Al Viro808d4e32012-10-11 11:42:01 -040097static int cap_sb_mount(const char *dev_name, struct path *path,
98 const char *type, unsigned long flags, void *data)
Miklos Szeredi5915eb52008-07-03 20:56:05 +020099{
100 return 0;
101}
102
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200103static int cap_sb_umount(struct vfsmount *mnt, int flags)
104{
105 return 0;
106}
107
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200108static int cap_sb_pivotroot(struct path *old_path, struct path *new_path)
109{
110 return 0;
111}
112
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200113static int cap_sb_set_mnt_opts(struct super_block *sb,
114 struct security_mnt_opts *opts)
115{
116 if (unlikely(opts->num_mnt_opts))
117 return -EOPNOTSUPP;
118 return 0;
119}
120
121static void cap_sb_clone_mnt_opts(const struct super_block *oldsb,
122 struct super_block *newsb)
123{
124}
125
126static int cap_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
127{
128 return 0;
129}
130
131static int cap_inode_alloc_security(struct inode *inode)
132{
133 return 0;
134}
135
136static void cap_inode_free_security(struct inode *inode)
137{
138}
139
140static int cap_inode_init_security(struct inode *inode, struct inode *dir,
Eric Paris2a7dba32011-02-01 11:05:39 -0500141 const struct qstr *qstr, char **name,
142 void **value, size_t *len)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200143{
144 return -EOPNOTSUPP;
145}
146
147static int cap_inode_create(struct inode *inode, struct dentry *dentry,
Al Viro4acdaf22011-07-26 01:42:34 -0400148 umode_t mask)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200149{
150 return 0;
151}
152
153static int cap_inode_link(struct dentry *old_dentry, struct inode *inode,
154 struct dentry *new_dentry)
155{
156 return 0;
157}
158
159static int cap_inode_unlink(struct inode *inode, struct dentry *dentry)
160{
161 return 0;
162}
163
164static int cap_inode_symlink(struct inode *inode, struct dentry *dentry,
165 const char *name)
166{
167 return 0;
168}
169
170static int cap_inode_mkdir(struct inode *inode, struct dentry *dentry,
Al Viro18bb1db2011-07-26 01:41:39 -0400171 umode_t mask)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200172{
173 return 0;
174}
175
176static int cap_inode_rmdir(struct inode *inode, struct dentry *dentry)
177{
178 return 0;
179}
180
181static int cap_inode_mknod(struct inode *inode, struct dentry *dentry,
Al Viro1a67aaf2011-07-26 01:52:52 -0400182 umode_t mode, dev_t dev)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200183{
184 return 0;
185}
186
187static int cap_inode_rename(struct inode *old_inode, struct dentry *old_dentry,
188 struct inode *new_inode, struct dentry *new_dentry)
189{
190 return 0;
191}
192
193static int cap_inode_readlink(struct dentry *dentry)
194{
195 return 0;
196}
197
198static int cap_inode_follow_link(struct dentry *dentry,
199 struct nameidata *nameidata)
200{
201 return 0;
202}
203
Al Viroe74f71e2011-06-20 19:38:15 -0400204static int cap_inode_permission(struct inode *inode, int mask)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200205{
206 return 0;
207}
208
209static int cap_inode_setattr(struct dentry *dentry, struct iattr *iattr)
210{
211 return 0;
212}
213
214static int cap_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
215{
216 return 0;
217}
218
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200219static void cap_inode_post_setxattr(struct dentry *dentry, const char *name,
220 const void *value, size_t size, int flags)
221{
222}
223
224static int cap_inode_getxattr(struct dentry *dentry, const char *name)
225{
226 return 0;
227}
228
229static int cap_inode_listxattr(struct dentry *dentry)
230{
231 return 0;
232}
233
234static int cap_inode_getsecurity(const struct inode *inode, const char *name,
235 void **buffer, bool alloc)
236{
237 return -EOPNOTSUPP;
238}
239
240static int cap_inode_setsecurity(struct inode *inode, const char *name,
241 const void *value, size_t size, int flags)
242{
243 return -EOPNOTSUPP;
244}
245
246static int cap_inode_listsecurity(struct inode *inode, char *buffer,
247 size_t buffer_size)
248{
249 return 0;
250}
251
252static void cap_inode_getsecid(const struct inode *inode, u32 *secid)
253{
254 *secid = 0;
255}
256
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900257#ifdef CONFIG_SECURITY_PATH
Al Viro04fc66e2011-11-21 14:58:38 -0500258static int cap_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900259 unsigned int dev)
260{
261 return 0;
262}
263
Al Viro4572bef2011-11-21 14:56:21 -0500264static int cap_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900265{
266 return 0;
267}
268
269static int cap_path_rmdir(struct path *dir, struct dentry *dentry)
270{
271 return 0;
272}
273
274static int cap_path_unlink(struct path *dir, struct dentry *dentry)
275{
276 return 0;
277}
278
279static int cap_path_symlink(struct path *dir, struct dentry *dentry,
280 const char *old_name)
281{
282 return 0;
283}
284
285static int cap_path_link(struct dentry *old_dentry, struct path *new_dir,
286 struct dentry *new_dentry)
287{
288 return 0;
289}
290
291static int cap_path_rename(struct path *old_path, struct dentry *old_dentry,
292 struct path *new_path, struct dentry *new_dentry)
293{
294 return 0;
295}
296
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +0900297static int cap_path_truncate(struct path *path)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900298{
299 return 0;
300}
Tetsuo Handa89eda062009-10-04 21:49:47 +0900301
Al Virocdcf1162011-12-08 10:51:53 -0500302static int cap_path_chmod(struct path *path, umode_t mode)
Tetsuo Handa89eda062009-10-04 21:49:47 +0900303{
304 return 0;
305}
306
Eric W. Biedermand2b31ca2012-06-01 16:14:19 -0600307static int cap_path_chown(struct path *path, kuid_t uid, kgid_t gid)
Tetsuo Handa89eda062009-10-04 21:49:47 +0900308{
309 return 0;
310}
Tetsuo Handa8b8efb42009-10-04 21:49:48 +0900311
312static int cap_path_chroot(struct path *root)
313{
314 return 0;
315}
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900316#endif
317
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200318static int cap_file_permission(struct file *file, int mask)
319{
320 return 0;
321}
322
323static int cap_file_alloc_security(struct file *file)
324{
325 return 0;
326}
327
328static void cap_file_free_security(struct file *file)
329{
330}
331
332static int cap_file_ioctl(struct file *file, unsigned int command,
333 unsigned long arg)
334{
335 return 0;
336}
337
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200338static int cap_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
339 unsigned long prot)
340{
341 return 0;
342}
343
344static int cap_file_lock(struct file *file, unsigned int cmd)
345{
346 return 0;
347}
348
349static int cap_file_fcntl(struct file *file, unsigned int cmd,
350 unsigned long arg)
351{
352 return 0;
353}
354
355static int cap_file_set_fowner(struct file *file)
356{
357 return 0;
358}
359
360static int cap_file_send_sigiotask(struct task_struct *tsk,
361 struct fown_struct *fown, int sig)
362{
363 return 0;
364}
365
366static int cap_file_receive(struct file *file)
367{
368 return 0;
369}
370
Eric Paris83d49852012-04-04 13:45:40 -0400371static int cap_file_open(struct file *file, const struct cred *cred)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200372{
373 return 0;
374}
375
376static int cap_task_create(unsigned long clone_flags)
377{
378 return 0;
379}
380
Kees Cook1a2a4d02011-12-21 12:17:03 -0800381static void cap_task_free(struct task_struct *task)
382{
383}
384
David Howellsee18d642009-09-02 09:14:21 +0100385static int cap_cred_alloc_blank(struct cred *cred, gfp_t gfp)
386{
387 return 0;
388}
389
David Howellsd84f4f92008-11-14 10:39:23 +1100390static void cap_cred_free(struct cred *cred)
391{
392}
393
394static int cap_cred_prepare(struct cred *new, const struct cred *old, gfp_t gfp)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200395{
396 return 0;
397}
398
David Howellsee18d642009-09-02 09:14:21 +0100399static void cap_cred_transfer(struct cred *new, const struct cred *old)
400{
401}
402
David Howells3a3b7ce2008-11-14 10:39:28 +1100403static int cap_kernel_act_as(struct cred *new, u32 secid)
404{
405 return 0;
406}
407
408static int cap_kernel_create_files_as(struct cred *new, struct inode *inode)
409{
410 return 0;
411}
412
Eric Parisdd8dbf22009-11-03 16:35:32 +1100413static int cap_kernel_module_request(char *kmod_name)
Eric Paris91884992009-08-13 09:44:57 -0400414{
415 return 0;
416}
417
Kees Cook2e72d512012-10-16 07:32:07 +1030418static int cap_kernel_module_from_file(struct file *file)
419{
420 return 0;
421}
422
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200423static int cap_task_setpgid(struct task_struct *p, pid_t pgid)
424{
425 return 0;
426}
427
428static int cap_task_getpgid(struct task_struct *p)
429{
430 return 0;
431}
432
433static int cap_task_getsid(struct task_struct *p)
434{
435 return 0;
436}
437
438static void cap_task_getsecid(struct task_struct *p, u32 *secid)
439{
440 *secid = 0;
441}
442
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200443static int cap_task_getioprio(struct task_struct *p)
444{
445 return 0;
446}
447
Jiri Slaby8fd00b42009-08-26 18:41:16 +0200448static int cap_task_setrlimit(struct task_struct *p, unsigned int resource,
449 struct rlimit *new_rlim)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200450{
451 return 0;
452}
453
454static int cap_task_getscheduler(struct task_struct *p)
455{
456 return 0;
457}
458
459static int cap_task_movememory(struct task_struct *p)
460{
461 return 0;
462}
463
464static int cap_task_wait(struct task_struct *p)
465{
466 return 0;
467}
468
469static int cap_task_kill(struct task_struct *p, struct siginfo *info,
470 int sig, u32 secid)
471{
472 return 0;
473}
474
475static void cap_task_to_inode(struct task_struct *p, struct inode *inode)
476{
477}
478
479static int cap_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
480{
481 return 0;
482}
483
484static void cap_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
485{
486 *secid = 0;
487}
488
489static int cap_msg_msg_alloc_security(struct msg_msg *msg)
490{
491 return 0;
492}
493
494static void cap_msg_msg_free_security(struct msg_msg *msg)
495{
496}
497
498static int cap_msg_queue_alloc_security(struct msg_queue *msq)
499{
500 return 0;
501}
502
503static void cap_msg_queue_free_security(struct msg_queue *msq)
504{
505}
506
507static int cap_msg_queue_associate(struct msg_queue *msq, int msqflg)
508{
509 return 0;
510}
511
512static int cap_msg_queue_msgctl(struct msg_queue *msq, int cmd)
513{
514 return 0;
515}
516
517static int cap_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
518 int msgflg)
519{
520 return 0;
521}
522
523static int cap_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
524 struct task_struct *target, long type, int mode)
525{
526 return 0;
527}
528
529static int cap_shm_alloc_security(struct shmid_kernel *shp)
530{
531 return 0;
532}
533
534static void cap_shm_free_security(struct shmid_kernel *shp)
535{
536}
537
538static int cap_shm_associate(struct shmid_kernel *shp, int shmflg)
539{
540 return 0;
541}
542
543static int cap_shm_shmctl(struct shmid_kernel *shp, int cmd)
544{
545 return 0;
546}
547
548static int cap_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr,
549 int shmflg)
550{
551 return 0;
552}
553
554static int cap_sem_alloc_security(struct sem_array *sma)
555{
556 return 0;
557}
558
559static void cap_sem_free_security(struct sem_array *sma)
560{
561}
562
563static int cap_sem_associate(struct sem_array *sma, int semflg)
564{
565 return 0;
566}
567
568static int cap_sem_semctl(struct sem_array *sma, int cmd)
569{
570 return 0;
571}
572
573static int cap_sem_semop(struct sem_array *sma, struct sembuf *sops,
574 unsigned nsops, int alter)
575{
576 return 0;
577}
578
579#ifdef CONFIG_SECURITY_NETWORK
David S. Miller3610cda2011-01-05 15:38:53 -0800580static int cap_unix_stream_connect(struct sock *sock, struct sock *other,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200581 struct sock *newsk)
582{
583 return 0;
584}
585
586static int cap_unix_may_send(struct socket *sock, struct socket *other)
587{
588 return 0;
589}
590
591static int cap_socket_create(int family, int type, int protocol, int kern)
592{
593 return 0;
594}
595
596static int cap_socket_post_create(struct socket *sock, int family, int type,
597 int protocol, int kern)
598{
599 return 0;
600}
601
602static int cap_socket_bind(struct socket *sock, struct sockaddr *address,
603 int addrlen)
604{
605 return 0;
606}
607
608static int cap_socket_connect(struct socket *sock, struct sockaddr *address,
609 int addrlen)
610{
611 return 0;
612}
613
614static int cap_socket_listen(struct socket *sock, int backlog)
615{
616 return 0;
617}
618
619static int cap_socket_accept(struct socket *sock, struct socket *newsock)
620{
621 return 0;
622}
623
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200624static int cap_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
625{
626 return 0;
627}
628
629static int cap_socket_recvmsg(struct socket *sock, struct msghdr *msg,
630 int size, int flags)
631{
632 return 0;
633}
634
635static int cap_socket_getsockname(struct socket *sock)
636{
637 return 0;
638}
639
640static int cap_socket_getpeername(struct socket *sock)
641{
642 return 0;
643}
644
645static int cap_socket_setsockopt(struct socket *sock, int level, int optname)
646{
647 return 0;
648}
649
650static int cap_socket_getsockopt(struct socket *sock, int level, int optname)
651{
652 return 0;
653}
654
655static int cap_socket_shutdown(struct socket *sock, int how)
656{
657 return 0;
658}
659
660static int cap_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
661{
662 return 0;
663}
664
665static int cap_socket_getpeersec_stream(struct socket *sock,
666 char __user *optval,
667 int __user *optlen, unsigned len)
668{
669 return -ENOPROTOOPT;
670}
671
672static int cap_socket_getpeersec_dgram(struct socket *sock,
673 struct sk_buff *skb, u32 *secid)
674{
675 return -ENOPROTOOPT;
676}
677
678static int cap_sk_alloc_security(struct sock *sk, int family, gfp_t priority)
679{
680 return 0;
681}
682
683static void cap_sk_free_security(struct sock *sk)
684{
685}
686
687static void cap_sk_clone_security(const struct sock *sk, struct sock *newsk)
688{
689}
690
691static void cap_sk_getsecid(struct sock *sk, u32 *secid)
692{
693}
694
695static void cap_sock_graft(struct sock *sk, struct socket *parent)
696{
697}
698
699static int cap_inet_conn_request(struct sock *sk, struct sk_buff *skb,
700 struct request_sock *req)
701{
702 return 0;
703}
704
705static void cap_inet_csk_clone(struct sock *newsk,
706 const struct request_sock *req)
707{
708}
709
710static void cap_inet_conn_established(struct sock *sk, struct sk_buff *skb)
711{
712}
713
Eric Paris2606fd12010-10-13 16:24:41 -0400714static int cap_secmark_relabel_packet(u32 secid)
715{
716 return 0;
717}
Paul Moore2b980db2009-08-28 18:12:43 -0400718
Eric Paris2606fd12010-10-13 16:24:41 -0400719static void cap_secmark_refcount_inc(void)
720{
721}
722
723static void cap_secmark_refcount_dec(void)
724{
725}
Paul Moore2b980db2009-08-28 18:12:43 -0400726
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200727static void cap_req_classify_flow(const struct request_sock *req,
728 struct flowi *fl)
729{
730}
Paul Moore2b980db2009-08-28 18:12:43 -0400731
Paul Moore5dbbaf22013-01-14 07:12:19 +0000732static int cap_tun_dev_alloc_security(void **security)
733{
734 return 0;
735}
736
737static void cap_tun_dev_free_security(void *security)
738{
739}
740
Paul Moore2b980db2009-08-28 18:12:43 -0400741static int cap_tun_dev_create(void)
742{
743 return 0;
744}
745
Paul Moore5dbbaf22013-01-14 07:12:19 +0000746static int cap_tun_dev_attach_queue(void *security)
Paul Moore2b980db2009-08-28 18:12:43 -0400747{
Paul Moore5dbbaf22013-01-14 07:12:19 +0000748 return 0;
Paul Moore2b980db2009-08-28 18:12:43 -0400749}
750
Paul Moore5dbbaf22013-01-14 07:12:19 +0000751static int cap_tun_dev_attach(struct sock *sk, void *security)
752{
753 return 0;
754}
755
756static int cap_tun_dev_open(void *security)
Paul Moore2b980db2009-08-28 18:12:43 -0400757{
758 return 0;
759}
Eric Dumazetca10b9e2013-04-08 17:58:11 +0000760
761static void cap_skb_owned_by(struct sk_buff *skb, struct sock *sk)
762{
763}
764
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200765#endif /* CONFIG_SECURITY_NETWORK */
766
767#ifdef CONFIG_SECURITY_NETWORK_XFRM
768static int cap_xfrm_policy_alloc_security(struct xfrm_sec_ctx **ctxp,
769 struct xfrm_user_sec_ctx *sec_ctx)
770{
771 return 0;
772}
773
774static int cap_xfrm_policy_clone_security(struct xfrm_sec_ctx *old_ctx,
775 struct xfrm_sec_ctx **new_ctxp)
776{
777 return 0;
778}
779
780static void cap_xfrm_policy_free_security(struct xfrm_sec_ctx *ctx)
781{
782}
783
784static int cap_xfrm_policy_delete_security(struct xfrm_sec_ctx *ctx)
785{
786 return 0;
787}
788
789static int cap_xfrm_state_alloc_security(struct xfrm_state *x,
790 struct xfrm_user_sec_ctx *sec_ctx,
791 u32 secid)
792{
793 return 0;
794}
795
796static void cap_xfrm_state_free_security(struct xfrm_state *x)
797{
798}
799
800static int cap_xfrm_state_delete_security(struct xfrm_state *x)
801{
802 return 0;
803}
804
805static int cap_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 sk_sid, u8 dir)
806{
807 return 0;
808}
809
810static int cap_xfrm_state_pol_flow_match(struct xfrm_state *x,
811 struct xfrm_policy *xp,
David S. Millere33f7702011-02-22 18:13:15 -0800812 const struct flowi *fl)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200813{
814 return 1;
815}
816
817static int cap_xfrm_decode_session(struct sk_buff *skb, u32 *fl, int ckall)
818{
819 return 0;
820}
821
822#endif /* CONFIG_SECURITY_NETWORK_XFRM */
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200823static void cap_d_instantiate(struct dentry *dentry, struct inode *inode)
824{
825}
826
827static int cap_getprocattr(struct task_struct *p, char *name, char **value)
828{
829 return -EINVAL;
830}
831
832static int cap_setprocattr(struct task_struct *p, char *name, void *value,
833 size_t size)
834{
835 return -EINVAL;
836}
837
838static int cap_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
839{
840 return -EOPNOTSUPP;
841}
842
843static int cap_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
844{
Eric Paris2606fd12010-10-13 16:24:41 -0400845 *secid = 0;
846 return 0;
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200847}
848
849static void cap_release_secctx(char *secdata, u32 seclen)
850{
851}
852
David P. Quigley1ee65e32009-09-03 14:25:57 -0400853static int cap_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
854{
855 return 0;
856}
857
858static int cap_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
859{
860 return 0;
861}
862
863static int cap_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
864{
865 return 0;
866}
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200867#ifdef CONFIG_KEYS
David Howellsd84f4f92008-11-14 10:39:23 +1100868static int cap_key_alloc(struct key *key, const struct cred *cred,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200869 unsigned long flags)
870{
871 return 0;
872}
873
874static void cap_key_free(struct key *key)
875{
876}
877
David Howellsd84f4f92008-11-14 10:39:23 +1100878static int cap_key_permission(key_ref_t key_ref, const struct cred *cred,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200879 key_perm_t perm)
880{
881 return 0;
882}
883
884static int cap_key_getsecurity(struct key *key, char **_buffer)
885{
886 *_buffer = NULL;
887 return 0;
888}
889
890#endif /* CONFIG_KEYS */
891
892#ifdef CONFIG_AUDIT
893static int cap_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
894{
895 return 0;
896}
897
898static int cap_audit_rule_known(struct audit_krule *krule)
899{
900 return 0;
901}
902
903static int cap_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
904 struct audit_context *actx)
905{
906 return 0;
907}
908
909static void cap_audit_rule_free(void *lsmrule)
910{
911}
912#endif /* CONFIG_AUDIT */
913
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200914#define set_to_cap_if_null(ops, function) \
915 do { \
916 if (!ops->function) { \
917 ops->function = cap_##function; \
918 pr_debug("Had to override the " #function \
919 " security operation with the default.\n");\
920 } \
921 } while (0)
922
Tetsuo Handac80901f2010-05-14 12:01:26 +0900923void __init security_fixup_ops(struct security_operations *ops)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200924{
Stephen Smalley54eb16c2012-11-05 08:15:34 -0500925 set_to_cap_if_null(ops, binder_set_context_mgr);
926 set_to_cap_if_null(ops, binder_transaction);
927 set_to_cap_if_null(ops, binder_transfer_binder);
928 set_to_cap_if_null(ops, binder_transfer_file);
Ingo Molnar9e488582009-05-07 19:26:19 +1000929 set_to_cap_if_null(ops, ptrace_access_check);
David Howells5cd9c582008-08-14 11:37:28 +0100930 set_to_cap_if_null(ops, ptrace_traceme);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200931 set_to_cap_if_null(ops, capget);
David Howellsd84f4f92008-11-14 10:39:23 +1100932 set_to_cap_if_null(ops, capset);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200933 set_to_cap_if_null(ops, capable);
934 set_to_cap_if_null(ops, quotactl);
935 set_to_cap_if_null(ops, quota_on);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200936 set_to_cap_if_null(ops, syslog);
937 set_to_cap_if_null(ops, settime);
938 set_to_cap_if_null(ops, vm_enough_memory);
David Howellsa6f76f22008-11-14 10:39:24 +1100939 set_to_cap_if_null(ops, bprm_set_creds);
940 set_to_cap_if_null(ops, bprm_committing_creds);
941 set_to_cap_if_null(ops, bprm_committed_creds);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200942 set_to_cap_if_null(ops, bprm_check_security);
943 set_to_cap_if_null(ops, bprm_secureexec);
944 set_to_cap_if_null(ops, sb_alloc_security);
945 set_to_cap_if_null(ops, sb_free_security);
946 set_to_cap_if_null(ops, sb_copy_data);
Eric Parisff36fe22011-03-03 16:09:14 -0500947 set_to_cap_if_null(ops, sb_remount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200948 set_to_cap_if_null(ops, sb_kern_mount);
949 set_to_cap_if_null(ops, sb_show_options);
950 set_to_cap_if_null(ops, sb_statfs);
951 set_to_cap_if_null(ops, sb_mount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200952 set_to_cap_if_null(ops, sb_umount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200953 set_to_cap_if_null(ops, sb_pivotroot);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200954 set_to_cap_if_null(ops, sb_set_mnt_opts);
955 set_to_cap_if_null(ops, sb_clone_mnt_opts);
956 set_to_cap_if_null(ops, sb_parse_opts_str);
957 set_to_cap_if_null(ops, inode_alloc_security);
958 set_to_cap_if_null(ops, inode_free_security);
959 set_to_cap_if_null(ops, inode_init_security);
960 set_to_cap_if_null(ops, inode_create);
961 set_to_cap_if_null(ops, inode_link);
962 set_to_cap_if_null(ops, inode_unlink);
963 set_to_cap_if_null(ops, inode_symlink);
964 set_to_cap_if_null(ops, inode_mkdir);
965 set_to_cap_if_null(ops, inode_rmdir);
966 set_to_cap_if_null(ops, inode_mknod);
967 set_to_cap_if_null(ops, inode_rename);
968 set_to_cap_if_null(ops, inode_readlink);
969 set_to_cap_if_null(ops, inode_follow_link);
970 set_to_cap_if_null(ops, inode_permission);
971 set_to_cap_if_null(ops, inode_setattr);
972 set_to_cap_if_null(ops, inode_getattr);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200973 set_to_cap_if_null(ops, inode_setxattr);
974 set_to_cap_if_null(ops, inode_post_setxattr);
975 set_to_cap_if_null(ops, inode_getxattr);
976 set_to_cap_if_null(ops, inode_listxattr);
977 set_to_cap_if_null(ops, inode_removexattr);
978 set_to_cap_if_null(ops, inode_need_killpriv);
979 set_to_cap_if_null(ops, inode_killpriv);
980 set_to_cap_if_null(ops, inode_getsecurity);
981 set_to_cap_if_null(ops, inode_setsecurity);
982 set_to_cap_if_null(ops, inode_listsecurity);
983 set_to_cap_if_null(ops, inode_getsecid);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900984#ifdef CONFIG_SECURITY_PATH
985 set_to_cap_if_null(ops, path_mknod);
986 set_to_cap_if_null(ops, path_mkdir);
987 set_to_cap_if_null(ops, path_rmdir);
988 set_to_cap_if_null(ops, path_unlink);
989 set_to_cap_if_null(ops, path_symlink);
990 set_to_cap_if_null(ops, path_link);
991 set_to_cap_if_null(ops, path_rename);
992 set_to_cap_if_null(ops, path_truncate);
Tetsuo Handa89eda062009-10-04 21:49:47 +0900993 set_to_cap_if_null(ops, path_chmod);
994 set_to_cap_if_null(ops, path_chown);
Tetsuo Handa8b8efb42009-10-04 21:49:48 +0900995 set_to_cap_if_null(ops, path_chroot);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900996#endif
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200997 set_to_cap_if_null(ops, file_permission);
998 set_to_cap_if_null(ops, file_alloc_security);
999 set_to_cap_if_null(ops, file_free_security);
1000 set_to_cap_if_null(ops, file_ioctl);
Al Viroe5467852012-05-30 13:30:51 -04001001 set_to_cap_if_null(ops, mmap_addr);
1002 set_to_cap_if_null(ops, mmap_file);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001003 set_to_cap_if_null(ops, file_mprotect);
1004 set_to_cap_if_null(ops, file_lock);
1005 set_to_cap_if_null(ops, file_fcntl);
1006 set_to_cap_if_null(ops, file_set_fowner);
1007 set_to_cap_if_null(ops, file_send_sigiotask);
1008 set_to_cap_if_null(ops, file_receive);
Eric Paris83d49852012-04-04 13:45:40 -04001009 set_to_cap_if_null(ops, file_open);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001010 set_to_cap_if_null(ops, task_create);
Kees Cook1a2a4d02011-12-21 12:17:03 -08001011 set_to_cap_if_null(ops, task_free);
David Howellsee18d642009-09-02 09:14:21 +01001012 set_to_cap_if_null(ops, cred_alloc_blank);
David Howellsf1752ee2008-11-14 10:39:17 +11001013 set_to_cap_if_null(ops, cred_free);
David Howellsd84f4f92008-11-14 10:39:23 +11001014 set_to_cap_if_null(ops, cred_prepare);
David Howellsee18d642009-09-02 09:14:21 +01001015 set_to_cap_if_null(ops, cred_transfer);
David Howells3a3b7ce2008-11-14 10:39:28 +11001016 set_to_cap_if_null(ops, kernel_act_as);
1017 set_to_cap_if_null(ops, kernel_create_files_as);
Eric Paris91884992009-08-13 09:44:57 -04001018 set_to_cap_if_null(ops, kernel_module_request);
Kees Cook2e72d512012-10-16 07:32:07 +10301019 set_to_cap_if_null(ops, kernel_module_from_file);
David Howellsd84f4f92008-11-14 10:39:23 +11001020 set_to_cap_if_null(ops, task_fix_setuid);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001021 set_to_cap_if_null(ops, task_setpgid);
1022 set_to_cap_if_null(ops, task_getpgid);
1023 set_to_cap_if_null(ops, task_getsid);
1024 set_to_cap_if_null(ops, task_getsecid);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001025 set_to_cap_if_null(ops, task_setnice);
1026 set_to_cap_if_null(ops, task_setioprio);
1027 set_to_cap_if_null(ops, task_getioprio);
1028 set_to_cap_if_null(ops, task_setrlimit);
1029 set_to_cap_if_null(ops, task_setscheduler);
1030 set_to_cap_if_null(ops, task_getscheduler);
1031 set_to_cap_if_null(ops, task_movememory);
1032 set_to_cap_if_null(ops, task_wait);
1033 set_to_cap_if_null(ops, task_kill);
1034 set_to_cap_if_null(ops, task_prctl);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001035 set_to_cap_if_null(ops, task_to_inode);
1036 set_to_cap_if_null(ops, ipc_permission);
1037 set_to_cap_if_null(ops, ipc_getsecid);
1038 set_to_cap_if_null(ops, msg_msg_alloc_security);
1039 set_to_cap_if_null(ops, msg_msg_free_security);
1040 set_to_cap_if_null(ops, msg_queue_alloc_security);
1041 set_to_cap_if_null(ops, msg_queue_free_security);
1042 set_to_cap_if_null(ops, msg_queue_associate);
1043 set_to_cap_if_null(ops, msg_queue_msgctl);
1044 set_to_cap_if_null(ops, msg_queue_msgsnd);
1045 set_to_cap_if_null(ops, msg_queue_msgrcv);
1046 set_to_cap_if_null(ops, shm_alloc_security);
1047 set_to_cap_if_null(ops, shm_free_security);
1048 set_to_cap_if_null(ops, shm_associate);
1049 set_to_cap_if_null(ops, shm_shmctl);
1050 set_to_cap_if_null(ops, shm_shmat);
1051 set_to_cap_if_null(ops, sem_alloc_security);
1052 set_to_cap_if_null(ops, sem_free_security);
1053 set_to_cap_if_null(ops, sem_associate);
1054 set_to_cap_if_null(ops, sem_semctl);
1055 set_to_cap_if_null(ops, sem_semop);
1056 set_to_cap_if_null(ops, netlink_send);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001057 set_to_cap_if_null(ops, d_instantiate);
1058 set_to_cap_if_null(ops, getprocattr);
1059 set_to_cap_if_null(ops, setprocattr);
1060 set_to_cap_if_null(ops, secid_to_secctx);
1061 set_to_cap_if_null(ops, secctx_to_secid);
1062 set_to_cap_if_null(ops, release_secctx);
David P. Quigley1ee65e32009-09-03 14:25:57 -04001063 set_to_cap_if_null(ops, inode_notifysecctx);
1064 set_to_cap_if_null(ops, inode_setsecctx);
1065 set_to_cap_if_null(ops, inode_getsecctx);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001066#ifdef CONFIG_SECURITY_NETWORK
1067 set_to_cap_if_null(ops, unix_stream_connect);
1068 set_to_cap_if_null(ops, unix_may_send);
1069 set_to_cap_if_null(ops, socket_create);
1070 set_to_cap_if_null(ops, socket_post_create);
1071 set_to_cap_if_null(ops, socket_bind);
1072 set_to_cap_if_null(ops, socket_connect);
1073 set_to_cap_if_null(ops, socket_listen);
1074 set_to_cap_if_null(ops, socket_accept);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001075 set_to_cap_if_null(ops, socket_sendmsg);
1076 set_to_cap_if_null(ops, socket_recvmsg);
1077 set_to_cap_if_null(ops, socket_getsockname);
1078 set_to_cap_if_null(ops, socket_getpeername);
1079 set_to_cap_if_null(ops, socket_setsockopt);
1080 set_to_cap_if_null(ops, socket_getsockopt);
1081 set_to_cap_if_null(ops, socket_shutdown);
1082 set_to_cap_if_null(ops, socket_sock_rcv_skb);
1083 set_to_cap_if_null(ops, socket_getpeersec_stream);
1084 set_to_cap_if_null(ops, socket_getpeersec_dgram);
1085 set_to_cap_if_null(ops, sk_alloc_security);
1086 set_to_cap_if_null(ops, sk_free_security);
1087 set_to_cap_if_null(ops, sk_clone_security);
1088 set_to_cap_if_null(ops, sk_getsecid);
1089 set_to_cap_if_null(ops, sock_graft);
1090 set_to_cap_if_null(ops, inet_conn_request);
1091 set_to_cap_if_null(ops, inet_csk_clone);
1092 set_to_cap_if_null(ops, inet_conn_established);
Eric Paris2606fd12010-10-13 16:24:41 -04001093 set_to_cap_if_null(ops, secmark_relabel_packet);
1094 set_to_cap_if_null(ops, secmark_refcount_inc);
1095 set_to_cap_if_null(ops, secmark_refcount_dec);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001096 set_to_cap_if_null(ops, req_classify_flow);
Paul Moore5dbbaf22013-01-14 07:12:19 +00001097 set_to_cap_if_null(ops, tun_dev_alloc_security);
1098 set_to_cap_if_null(ops, tun_dev_free_security);
Paul Moore2b980db2009-08-28 18:12:43 -04001099 set_to_cap_if_null(ops, tun_dev_create);
Paul Moore5dbbaf22013-01-14 07:12:19 +00001100 set_to_cap_if_null(ops, tun_dev_open);
1101 set_to_cap_if_null(ops, tun_dev_attach_queue);
Paul Moore2b980db2009-08-28 18:12:43 -04001102 set_to_cap_if_null(ops, tun_dev_attach);
Eric Dumazetca10b9e2013-04-08 17:58:11 +00001103 set_to_cap_if_null(ops, skb_owned_by);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001104#endif /* CONFIG_SECURITY_NETWORK */
1105#ifdef CONFIG_SECURITY_NETWORK_XFRM
1106 set_to_cap_if_null(ops, xfrm_policy_alloc_security);
1107 set_to_cap_if_null(ops, xfrm_policy_clone_security);
1108 set_to_cap_if_null(ops, xfrm_policy_free_security);
1109 set_to_cap_if_null(ops, xfrm_policy_delete_security);
1110 set_to_cap_if_null(ops, xfrm_state_alloc_security);
1111 set_to_cap_if_null(ops, xfrm_state_free_security);
1112 set_to_cap_if_null(ops, xfrm_state_delete_security);
1113 set_to_cap_if_null(ops, xfrm_policy_lookup);
1114 set_to_cap_if_null(ops, xfrm_state_pol_flow_match);
1115 set_to_cap_if_null(ops, xfrm_decode_session);
1116#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1117#ifdef CONFIG_KEYS
1118 set_to_cap_if_null(ops, key_alloc);
1119 set_to_cap_if_null(ops, key_free);
1120 set_to_cap_if_null(ops, key_permission);
1121 set_to_cap_if_null(ops, key_getsecurity);
1122#endif /* CONFIG_KEYS */
1123#ifdef CONFIG_AUDIT
1124 set_to_cap_if_null(ops, audit_rule_init);
1125 set_to_cap_if_null(ops, audit_rule_known);
1126 set_to_cap_if_null(ops, audit_rule_match);
1127 set_to_cap_if_null(ops, audit_rule_free);
1128#endif
1129}