blob: 4a5191f420d1fce9e79e93c3d3d9cca2d8c7c022 [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
Todd Kjose6dc2a62021-10-12 09:56:13 -070015static int cap_binder_set_context_mgr(const struct cred *mgr)
Stephen Smalley48a23702012-11-05 08:15:34 -050016{
17 return 0;
18}
19
Todd Kjose6dc2a62021-10-12 09:56:13 -070020static int cap_binder_transaction(const struct cred *from, const struct cred *to)
Stephen Smalley48a23702012-11-05 08:15:34 -050021{
22 return 0;
23}
24
Todd Kjose6dc2a62021-10-12 09:56:13 -070025static int cap_binder_transfer_binder(const struct cred *from, const struct cred *to)
Stephen Smalley48a23702012-11-05 08:15:34 -050026{
27 return 0;
28}
29
Todd Kjose6dc2a62021-10-12 09:56:13 -070030static int cap_binder_transfer_file(const struct cred *from, const struct cred *to, struct file *file)
Stephen Smalley48a23702012-11-05 08:15:34 -050031{
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 Viroddaa16d2012-10-11 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
307static int cap_path_chown(struct path *path, uid_t uid, gid_t gid)
308{
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
David Howells745ca242008-11-14 10:39:22 +1100371static int cap_dentry_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
Matthew Garrette7ef24d2018-01-08 13:36:19 -0800403static void cap_cred_getsecid(const struct cred *c, u32 *secid)
404{
405}
406
David Howells3a3b7ce2008-11-14 10:39:28 +1100407static int cap_kernel_act_as(struct cred *new, u32 secid)
408{
409 return 0;
410}
411
412static int cap_kernel_create_files_as(struct cred *new, struct inode *inode)
413{
414 return 0;
415}
416
Eric Parisdd8dbf22009-11-03 16:35:32 +1100417static int cap_kernel_module_request(char *kmod_name)
Eric Paris91884992009-08-13 09:44:57 -0400418{
419 return 0;
420}
421
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200422static int cap_task_setpgid(struct task_struct *p, pid_t pgid)
423{
424 return 0;
425}
426
427static int cap_task_getpgid(struct task_struct *p)
428{
429 return 0;
430}
431
432static int cap_task_getsid(struct task_struct *p)
433{
434 return 0;
435}
436
437static void cap_task_getsecid(struct task_struct *p, u32 *secid)
438{
439 *secid = 0;
440}
441
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200442static int cap_task_getioprio(struct task_struct *p)
443{
444 return 0;
445}
446
Jiri Slaby8fd00b42009-08-26 18:41:16 +0200447static int cap_task_setrlimit(struct task_struct *p, unsigned int resource,
448 struct rlimit *new_rlim)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200449{
450 return 0;
451}
452
453static int cap_task_getscheduler(struct task_struct *p)
454{
455 return 0;
456}
457
458static int cap_task_movememory(struct task_struct *p)
459{
460 return 0;
461}
462
463static int cap_task_wait(struct task_struct *p)
464{
465 return 0;
466}
467
468static int cap_task_kill(struct task_struct *p, struct siginfo *info,
469 int sig, u32 secid)
470{
471 return 0;
472}
473
474static void cap_task_to_inode(struct task_struct *p, struct inode *inode)
475{
476}
477
478static int cap_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
479{
480 return 0;
481}
482
483static void cap_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
484{
485 *secid = 0;
486}
487
488static int cap_msg_msg_alloc_security(struct msg_msg *msg)
489{
490 return 0;
491}
492
493static void cap_msg_msg_free_security(struct msg_msg *msg)
494{
495}
496
497static int cap_msg_queue_alloc_security(struct msg_queue *msq)
498{
499 return 0;
500}
501
502static void cap_msg_queue_free_security(struct msg_queue *msq)
503{
504}
505
506static int cap_msg_queue_associate(struct msg_queue *msq, int msqflg)
507{
508 return 0;
509}
510
511static int cap_msg_queue_msgctl(struct msg_queue *msq, int cmd)
512{
513 return 0;
514}
515
516static int cap_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
517 int msgflg)
518{
519 return 0;
520}
521
522static int cap_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
523 struct task_struct *target, long type, int mode)
524{
525 return 0;
526}
527
528static int cap_shm_alloc_security(struct shmid_kernel *shp)
529{
530 return 0;
531}
532
533static void cap_shm_free_security(struct shmid_kernel *shp)
534{
535}
536
537static int cap_shm_associate(struct shmid_kernel *shp, int shmflg)
538{
539 return 0;
540}
541
542static int cap_shm_shmctl(struct shmid_kernel *shp, int cmd)
543{
544 return 0;
545}
546
547static int cap_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr,
548 int shmflg)
549{
550 return 0;
551}
552
553static int cap_sem_alloc_security(struct sem_array *sma)
554{
555 return 0;
556}
557
558static void cap_sem_free_security(struct sem_array *sma)
559{
560}
561
562static int cap_sem_associate(struct sem_array *sma, int semflg)
563{
564 return 0;
565}
566
567static int cap_sem_semctl(struct sem_array *sma, int cmd)
568{
569 return 0;
570}
571
572static int cap_sem_semop(struct sem_array *sma, struct sembuf *sops,
573 unsigned nsops, int alter)
574{
575 return 0;
576}
577
578#ifdef CONFIG_SECURITY_NETWORK
David S. Miller3610cda2011-01-05 15:38:53 -0800579static int cap_unix_stream_connect(struct sock *sock, struct sock *other,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200580 struct sock *newsk)
581{
582 return 0;
583}
584
585static int cap_unix_may_send(struct socket *sock, struct socket *other)
586{
587 return 0;
588}
589
590static int cap_socket_create(int family, int type, int protocol, int kern)
591{
592 return 0;
593}
594
595static int cap_socket_post_create(struct socket *sock, int family, int type,
596 int protocol, int kern)
597{
598 return 0;
599}
600
601static int cap_socket_bind(struct socket *sock, struct sockaddr *address,
602 int addrlen)
603{
604 return 0;
605}
606
607static int cap_socket_connect(struct socket *sock, struct sockaddr *address,
608 int addrlen)
609{
610 return 0;
611}
612
613static int cap_socket_listen(struct socket *sock, int backlog)
614{
615 return 0;
616}
617
618static int cap_socket_accept(struct socket *sock, struct socket *newsock)
619{
620 return 0;
621}
622
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200623static int cap_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
624{
625 return 0;
626}
627
628static int cap_socket_recvmsg(struct socket *sock, struct msghdr *msg,
629 int size, int flags)
630{
631 return 0;
632}
633
634static int cap_socket_getsockname(struct socket *sock)
635{
636 return 0;
637}
638
639static int cap_socket_getpeername(struct socket *sock)
640{
641 return 0;
642}
643
644static int cap_socket_setsockopt(struct socket *sock, int level, int optname)
645{
646 return 0;
647}
648
649static int cap_socket_getsockopt(struct socket *sock, int level, int optname)
650{
651 return 0;
652}
653
654static int cap_socket_shutdown(struct socket *sock, int how)
655{
656 return 0;
657}
658
659static int cap_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
660{
661 return 0;
662}
663
664static int cap_socket_getpeersec_stream(struct socket *sock,
665 char __user *optval,
666 int __user *optlen, unsigned len)
667{
668 return -ENOPROTOOPT;
669}
670
671static int cap_socket_getpeersec_dgram(struct socket *sock,
672 struct sk_buff *skb, u32 *secid)
673{
674 return -ENOPROTOOPT;
675}
676
677static int cap_sk_alloc_security(struct sock *sk, int family, gfp_t priority)
678{
679 return 0;
680}
681
682static void cap_sk_free_security(struct sock *sk)
683{
684}
685
686static void cap_sk_clone_security(const struct sock *sk, struct sock *newsk)
687{
688}
689
690static void cap_sk_getsecid(struct sock *sk, u32 *secid)
691{
692}
693
694static void cap_sock_graft(struct sock *sk, struct socket *parent)
695{
696}
697
698static int cap_inet_conn_request(struct sock *sk, struct sk_buff *skb,
699 struct request_sock *req)
700{
701 return 0;
702}
703
704static void cap_inet_csk_clone(struct sock *newsk,
705 const struct request_sock *req)
706{
707}
708
709static void cap_inet_conn_established(struct sock *sk, struct sk_buff *skb)
710{
711}
712
Eric Paris2606fd12010-10-13 16:24:41 -0400713static int cap_secmark_relabel_packet(u32 secid)
714{
715 return 0;
716}
Paul Moore2b980db2009-08-28 18:12:43 -0400717
Eric Paris2606fd12010-10-13 16:24:41 -0400718static void cap_secmark_refcount_inc(void)
719{
720}
721
722static void cap_secmark_refcount_dec(void)
723{
724}
Paul Moore2b980db2009-08-28 18:12:43 -0400725
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200726static void cap_req_classify_flow(const struct request_sock *req,
727 struct flowi *fl)
728{
729}
Paul Moore2b980db2009-08-28 18:12:43 -0400730
731static int cap_tun_dev_create(void)
732{
733 return 0;
734}
735
736static void cap_tun_dev_post_create(struct sock *sk)
737{
738}
739
740static int cap_tun_dev_attach(struct sock *sk)
741{
742 return 0;
743}
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200744#endif /* CONFIG_SECURITY_NETWORK */
745
746#ifdef CONFIG_SECURITY_NETWORK_XFRM
747static int cap_xfrm_policy_alloc_security(struct xfrm_sec_ctx **ctxp,
748 struct xfrm_user_sec_ctx *sec_ctx)
749{
750 return 0;
751}
752
753static int cap_xfrm_policy_clone_security(struct xfrm_sec_ctx *old_ctx,
754 struct xfrm_sec_ctx **new_ctxp)
755{
756 return 0;
757}
758
759static void cap_xfrm_policy_free_security(struct xfrm_sec_ctx *ctx)
760{
761}
762
763static int cap_xfrm_policy_delete_security(struct xfrm_sec_ctx *ctx)
764{
765 return 0;
766}
767
768static int cap_xfrm_state_alloc_security(struct xfrm_state *x,
769 struct xfrm_user_sec_ctx *sec_ctx,
770 u32 secid)
771{
772 return 0;
773}
774
775static void cap_xfrm_state_free_security(struct xfrm_state *x)
776{
777}
778
779static int cap_xfrm_state_delete_security(struct xfrm_state *x)
780{
781 return 0;
782}
783
784static int cap_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 sk_sid, u8 dir)
785{
786 return 0;
787}
788
789static int cap_xfrm_state_pol_flow_match(struct xfrm_state *x,
790 struct xfrm_policy *xp,
David S. Millere33f7702011-02-22 18:13:15 -0800791 const struct flowi *fl)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200792{
793 return 1;
794}
795
796static int cap_xfrm_decode_session(struct sk_buff *skb, u32 *fl, int ckall)
797{
798 return 0;
799}
800
801#endif /* CONFIG_SECURITY_NETWORK_XFRM */
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200802static void cap_d_instantiate(struct dentry *dentry, struct inode *inode)
803{
804}
805
806static int cap_getprocattr(struct task_struct *p, char *name, char **value)
807{
808 return -EINVAL;
809}
810
811static int cap_setprocattr(struct task_struct *p, char *name, void *value,
812 size_t size)
813{
814 return -EINVAL;
815}
816
817static int cap_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
818{
819 return -EOPNOTSUPP;
820}
821
822static int cap_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
823{
Eric Paris2606fd12010-10-13 16:24:41 -0400824 *secid = 0;
825 return 0;
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200826}
827
828static void cap_release_secctx(char *secdata, u32 seclen)
829{
830}
831
David P. Quigley1ee65e32009-09-03 14:25:57 -0400832static int cap_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
833{
834 return 0;
835}
836
837static int cap_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
838{
839 return 0;
840}
841
842static int cap_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
843{
844 return 0;
845}
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200846#ifdef CONFIG_KEYS
David Howellsd84f4f92008-11-14 10:39:23 +1100847static int cap_key_alloc(struct key *key, const struct cred *cred,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200848 unsigned long flags)
849{
850 return 0;
851}
852
853static void cap_key_free(struct key *key)
854{
855}
856
David Howellsd84f4f92008-11-14 10:39:23 +1100857static int cap_key_permission(key_ref_t key_ref, const struct cred *cred,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200858 key_perm_t perm)
859{
860 return 0;
861}
862
863static int cap_key_getsecurity(struct key *key, char **_buffer)
864{
865 *_buffer = NULL;
866 return 0;
867}
868
869#endif /* CONFIG_KEYS */
870
871#ifdef CONFIG_AUDIT
872static int cap_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
873{
874 return 0;
875}
876
877static int cap_audit_rule_known(struct audit_krule *krule)
878{
879 return 0;
880}
881
882static int cap_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
883 struct audit_context *actx)
884{
885 return 0;
886}
887
888static void cap_audit_rule_free(void *lsmrule)
889{
890}
891#endif /* CONFIG_AUDIT */
892
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200893#define set_to_cap_if_null(ops, function) \
894 do { \
895 if (!ops->function) { \
896 ops->function = cap_##function; \
897 pr_debug("Had to override the " #function \
898 " security operation with the default.\n");\
899 } \
900 } while (0)
901
Tetsuo Handac80901f2010-05-14 12:01:26 +0900902void __init security_fixup_ops(struct security_operations *ops)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200903{
Stephen Smalley48a23702012-11-05 08:15:34 -0500904 set_to_cap_if_null(ops, binder_set_context_mgr);
905 set_to_cap_if_null(ops, binder_transaction);
906 set_to_cap_if_null(ops, binder_transfer_binder);
907 set_to_cap_if_null(ops, binder_transfer_file);
Ingo Molnar9e488582009-05-07 19:26:19 +1000908 set_to_cap_if_null(ops, ptrace_access_check);
David Howells5cd9c582008-08-14 11:37:28 +0100909 set_to_cap_if_null(ops, ptrace_traceme);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200910 set_to_cap_if_null(ops, capget);
David Howellsd84f4f92008-11-14 10:39:23 +1100911 set_to_cap_if_null(ops, capset);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200912 set_to_cap_if_null(ops, capable);
913 set_to_cap_if_null(ops, quotactl);
914 set_to_cap_if_null(ops, quota_on);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200915 set_to_cap_if_null(ops, syslog);
916 set_to_cap_if_null(ops, settime);
917 set_to_cap_if_null(ops, vm_enough_memory);
David Howellsa6f76f22008-11-14 10:39:24 +1100918 set_to_cap_if_null(ops, bprm_set_creds);
919 set_to_cap_if_null(ops, bprm_committing_creds);
920 set_to_cap_if_null(ops, bprm_committed_creds);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200921 set_to_cap_if_null(ops, bprm_check_security);
922 set_to_cap_if_null(ops, bprm_secureexec);
923 set_to_cap_if_null(ops, sb_alloc_security);
924 set_to_cap_if_null(ops, sb_free_security);
925 set_to_cap_if_null(ops, sb_copy_data);
Eric Parisff36fe22011-03-03 16:09:14 -0500926 set_to_cap_if_null(ops, sb_remount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200927 set_to_cap_if_null(ops, sb_kern_mount);
928 set_to_cap_if_null(ops, sb_show_options);
929 set_to_cap_if_null(ops, sb_statfs);
930 set_to_cap_if_null(ops, sb_mount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200931 set_to_cap_if_null(ops, sb_umount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200932 set_to_cap_if_null(ops, sb_pivotroot);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200933 set_to_cap_if_null(ops, sb_set_mnt_opts);
934 set_to_cap_if_null(ops, sb_clone_mnt_opts);
935 set_to_cap_if_null(ops, sb_parse_opts_str);
936 set_to_cap_if_null(ops, inode_alloc_security);
937 set_to_cap_if_null(ops, inode_free_security);
938 set_to_cap_if_null(ops, inode_init_security);
939 set_to_cap_if_null(ops, inode_create);
940 set_to_cap_if_null(ops, inode_link);
941 set_to_cap_if_null(ops, inode_unlink);
942 set_to_cap_if_null(ops, inode_symlink);
943 set_to_cap_if_null(ops, inode_mkdir);
944 set_to_cap_if_null(ops, inode_rmdir);
945 set_to_cap_if_null(ops, inode_mknod);
946 set_to_cap_if_null(ops, inode_rename);
947 set_to_cap_if_null(ops, inode_readlink);
948 set_to_cap_if_null(ops, inode_follow_link);
949 set_to_cap_if_null(ops, inode_permission);
950 set_to_cap_if_null(ops, inode_setattr);
951 set_to_cap_if_null(ops, inode_getattr);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200952 set_to_cap_if_null(ops, inode_setxattr);
953 set_to_cap_if_null(ops, inode_post_setxattr);
954 set_to_cap_if_null(ops, inode_getxattr);
955 set_to_cap_if_null(ops, inode_listxattr);
956 set_to_cap_if_null(ops, inode_removexattr);
957 set_to_cap_if_null(ops, inode_need_killpriv);
958 set_to_cap_if_null(ops, inode_killpriv);
959 set_to_cap_if_null(ops, inode_getsecurity);
960 set_to_cap_if_null(ops, inode_setsecurity);
961 set_to_cap_if_null(ops, inode_listsecurity);
962 set_to_cap_if_null(ops, inode_getsecid);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900963#ifdef CONFIG_SECURITY_PATH
964 set_to_cap_if_null(ops, path_mknod);
965 set_to_cap_if_null(ops, path_mkdir);
966 set_to_cap_if_null(ops, path_rmdir);
967 set_to_cap_if_null(ops, path_unlink);
968 set_to_cap_if_null(ops, path_symlink);
969 set_to_cap_if_null(ops, path_link);
970 set_to_cap_if_null(ops, path_rename);
971 set_to_cap_if_null(ops, path_truncate);
Tetsuo Handa89eda062009-10-04 21:49:47 +0900972 set_to_cap_if_null(ops, path_chmod);
973 set_to_cap_if_null(ops, path_chown);
Tetsuo Handa8b8efb42009-10-04 21:49:48 +0900974 set_to_cap_if_null(ops, path_chroot);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900975#endif
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200976 set_to_cap_if_null(ops, file_permission);
977 set_to_cap_if_null(ops, file_alloc_security);
978 set_to_cap_if_null(ops, file_free_security);
979 set_to_cap_if_null(ops, file_ioctl);
980 set_to_cap_if_null(ops, file_mmap);
981 set_to_cap_if_null(ops, file_mprotect);
982 set_to_cap_if_null(ops, file_lock);
983 set_to_cap_if_null(ops, file_fcntl);
984 set_to_cap_if_null(ops, file_set_fowner);
985 set_to_cap_if_null(ops, file_send_sigiotask);
986 set_to_cap_if_null(ops, file_receive);
987 set_to_cap_if_null(ops, dentry_open);
988 set_to_cap_if_null(ops, task_create);
Kees Cook1a2a4d02011-12-21 12:17:03 -0800989 set_to_cap_if_null(ops, task_free);
David Howellsee18d642009-09-02 09:14:21 +0100990 set_to_cap_if_null(ops, cred_alloc_blank);
David Howellsf1752ee2008-11-14 10:39:17 +1100991 set_to_cap_if_null(ops, cred_free);
David Howellsd84f4f92008-11-14 10:39:23 +1100992 set_to_cap_if_null(ops, cred_prepare);
David Howellsee18d642009-09-02 09:14:21 +0100993 set_to_cap_if_null(ops, cred_transfer);
Matthew Garrette7ef24d2018-01-08 13:36:19 -0800994 set_to_cap_if_null(ops, cred_getsecid);
David Howells3a3b7ce2008-11-14 10:39:28 +1100995 set_to_cap_if_null(ops, kernel_act_as);
996 set_to_cap_if_null(ops, kernel_create_files_as);
Eric Paris91884992009-08-13 09:44:57 -0400997 set_to_cap_if_null(ops, kernel_module_request);
David Howellsd84f4f92008-11-14 10:39:23 +1100998 set_to_cap_if_null(ops, task_fix_setuid);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200999 set_to_cap_if_null(ops, task_setpgid);
1000 set_to_cap_if_null(ops, task_getpgid);
1001 set_to_cap_if_null(ops, task_getsid);
1002 set_to_cap_if_null(ops, task_getsecid);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001003 set_to_cap_if_null(ops, task_setnice);
1004 set_to_cap_if_null(ops, task_setioprio);
1005 set_to_cap_if_null(ops, task_getioprio);
1006 set_to_cap_if_null(ops, task_setrlimit);
1007 set_to_cap_if_null(ops, task_setscheduler);
1008 set_to_cap_if_null(ops, task_getscheduler);
1009 set_to_cap_if_null(ops, task_movememory);
1010 set_to_cap_if_null(ops, task_wait);
1011 set_to_cap_if_null(ops, task_kill);
1012 set_to_cap_if_null(ops, task_prctl);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001013 set_to_cap_if_null(ops, task_to_inode);
1014 set_to_cap_if_null(ops, ipc_permission);
1015 set_to_cap_if_null(ops, ipc_getsecid);
1016 set_to_cap_if_null(ops, msg_msg_alloc_security);
1017 set_to_cap_if_null(ops, msg_msg_free_security);
1018 set_to_cap_if_null(ops, msg_queue_alloc_security);
1019 set_to_cap_if_null(ops, msg_queue_free_security);
1020 set_to_cap_if_null(ops, msg_queue_associate);
1021 set_to_cap_if_null(ops, msg_queue_msgctl);
1022 set_to_cap_if_null(ops, msg_queue_msgsnd);
1023 set_to_cap_if_null(ops, msg_queue_msgrcv);
1024 set_to_cap_if_null(ops, shm_alloc_security);
1025 set_to_cap_if_null(ops, shm_free_security);
1026 set_to_cap_if_null(ops, shm_associate);
1027 set_to_cap_if_null(ops, shm_shmctl);
1028 set_to_cap_if_null(ops, shm_shmat);
1029 set_to_cap_if_null(ops, sem_alloc_security);
1030 set_to_cap_if_null(ops, sem_free_security);
1031 set_to_cap_if_null(ops, sem_associate);
1032 set_to_cap_if_null(ops, sem_semctl);
1033 set_to_cap_if_null(ops, sem_semop);
1034 set_to_cap_if_null(ops, netlink_send);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001035 set_to_cap_if_null(ops, d_instantiate);
1036 set_to_cap_if_null(ops, getprocattr);
1037 set_to_cap_if_null(ops, setprocattr);
1038 set_to_cap_if_null(ops, secid_to_secctx);
1039 set_to_cap_if_null(ops, secctx_to_secid);
1040 set_to_cap_if_null(ops, release_secctx);
David P. Quigley1ee65e32009-09-03 14:25:57 -04001041 set_to_cap_if_null(ops, inode_notifysecctx);
1042 set_to_cap_if_null(ops, inode_setsecctx);
1043 set_to_cap_if_null(ops, inode_getsecctx);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001044#ifdef CONFIG_SECURITY_NETWORK
1045 set_to_cap_if_null(ops, unix_stream_connect);
1046 set_to_cap_if_null(ops, unix_may_send);
1047 set_to_cap_if_null(ops, socket_create);
1048 set_to_cap_if_null(ops, socket_post_create);
1049 set_to_cap_if_null(ops, socket_bind);
1050 set_to_cap_if_null(ops, socket_connect);
1051 set_to_cap_if_null(ops, socket_listen);
1052 set_to_cap_if_null(ops, socket_accept);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001053 set_to_cap_if_null(ops, socket_sendmsg);
1054 set_to_cap_if_null(ops, socket_recvmsg);
1055 set_to_cap_if_null(ops, socket_getsockname);
1056 set_to_cap_if_null(ops, socket_getpeername);
1057 set_to_cap_if_null(ops, socket_setsockopt);
1058 set_to_cap_if_null(ops, socket_getsockopt);
1059 set_to_cap_if_null(ops, socket_shutdown);
1060 set_to_cap_if_null(ops, socket_sock_rcv_skb);
1061 set_to_cap_if_null(ops, socket_getpeersec_stream);
1062 set_to_cap_if_null(ops, socket_getpeersec_dgram);
1063 set_to_cap_if_null(ops, sk_alloc_security);
1064 set_to_cap_if_null(ops, sk_free_security);
1065 set_to_cap_if_null(ops, sk_clone_security);
1066 set_to_cap_if_null(ops, sk_getsecid);
1067 set_to_cap_if_null(ops, sock_graft);
1068 set_to_cap_if_null(ops, inet_conn_request);
1069 set_to_cap_if_null(ops, inet_csk_clone);
1070 set_to_cap_if_null(ops, inet_conn_established);
Eric Paris2606fd12010-10-13 16:24:41 -04001071 set_to_cap_if_null(ops, secmark_relabel_packet);
1072 set_to_cap_if_null(ops, secmark_refcount_inc);
1073 set_to_cap_if_null(ops, secmark_refcount_dec);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001074 set_to_cap_if_null(ops, req_classify_flow);
Paul Moore2b980db2009-08-28 18:12:43 -04001075 set_to_cap_if_null(ops, tun_dev_create);
1076 set_to_cap_if_null(ops, tun_dev_post_create);
1077 set_to_cap_if_null(ops, tun_dev_attach);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001078#endif /* CONFIG_SECURITY_NETWORK */
1079#ifdef CONFIG_SECURITY_NETWORK_XFRM
1080 set_to_cap_if_null(ops, xfrm_policy_alloc_security);
1081 set_to_cap_if_null(ops, xfrm_policy_clone_security);
1082 set_to_cap_if_null(ops, xfrm_policy_free_security);
1083 set_to_cap_if_null(ops, xfrm_policy_delete_security);
1084 set_to_cap_if_null(ops, xfrm_state_alloc_security);
1085 set_to_cap_if_null(ops, xfrm_state_free_security);
1086 set_to_cap_if_null(ops, xfrm_state_delete_security);
1087 set_to_cap_if_null(ops, xfrm_policy_lookup);
1088 set_to_cap_if_null(ops, xfrm_state_pol_flow_match);
1089 set_to_cap_if_null(ops, xfrm_decode_session);
1090#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1091#ifdef CONFIG_KEYS
1092 set_to_cap_if_null(ops, key_alloc);
1093 set_to_cap_if_null(ops, key_free);
1094 set_to_cap_if_null(ops, key_permission);
1095 set_to_cap_if_null(ops, key_getsecurity);
1096#endif /* CONFIG_KEYS */
1097#ifdef CONFIG_AUDIT
1098 set_to_cap_if_null(ops, audit_rule_init);
1099 set_to_cap_if_null(ops, audit_rule_known);
1100 set_to_cap_if_null(ops, audit_rule_match);
1101 set_to_cap_if_null(ops, audit_rule_free);
1102#endif
1103}