blob: 2f6ab98b85e98082d9db31daa2d90cd599037829 [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 Smalley6639e3d2012-11-05 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,
David Quigley649f6e72013-05-22 12:50:36 -0400114 struct security_mnt_opts *opts,
115 unsigned long kern_flags,
116 unsigned long *set_kern_flags)
117
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200118{
119 if (unlikely(opts->num_mnt_opts))
120 return -EOPNOTSUPP;
121 return 0;
122}
123
Jeff Layton094f7b62013-04-01 08:14:24 -0400124static int cap_sb_clone_mnt_opts(const struct super_block *oldsb,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200125 struct super_block *newsb)
126{
Jeff Layton094f7b62013-04-01 08:14:24 -0400127 return 0;
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200128}
129
130static int cap_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
131{
132 return 0;
133}
134
David Quigleyd47be3d2013-05-22 12:50:34 -0400135static int cap_dentry_init_security(struct dentry *dentry, int mode,
136 struct qstr *name, void **ctx,
137 u32 *ctxlen)
138{
139 return 0;
140}
141
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200142static int cap_inode_alloc_security(struct inode *inode)
143{
144 return 0;
145}
146
147static void cap_inode_free_security(struct inode *inode)
148{
149}
150
151static int cap_inode_init_security(struct inode *inode, struct inode *dir,
Tetsuo Handa95489062013-07-25 05:44:02 +0900152 const struct qstr *qstr, const char **name,
Eric Paris2a7dba32011-02-01 11:05:39 -0500153 void **value, size_t *len)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200154{
155 return -EOPNOTSUPP;
156}
157
158static int cap_inode_create(struct inode *inode, struct dentry *dentry,
Al Viro4acdaf22011-07-26 01:42:34 -0400159 umode_t mask)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200160{
161 return 0;
162}
163
164static int cap_inode_link(struct dentry *old_dentry, struct inode *inode,
165 struct dentry *new_dentry)
166{
167 return 0;
168}
169
170static int cap_inode_unlink(struct inode *inode, struct dentry *dentry)
171{
172 return 0;
173}
174
175static int cap_inode_symlink(struct inode *inode, struct dentry *dentry,
176 const char *name)
177{
178 return 0;
179}
180
181static int cap_inode_mkdir(struct inode *inode, struct dentry *dentry,
Al Viro18bb1db2011-07-26 01:41:39 -0400182 umode_t mask)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200183{
184 return 0;
185}
186
187static int cap_inode_rmdir(struct inode *inode, struct dentry *dentry)
188{
189 return 0;
190}
191
192static int cap_inode_mknod(struct inode *inode, struct dentry *dentry,
Al Viro1a67aaf2011-07-26 01:52:52 -0400193 umode_t mode, dev_t dev)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200194{
195 return 0;
196}
197
198static int cap_inode_rename(struct inode *old_inode, struct dentry *old_dentry,
199 struct inode *new_inode, struct dentry *new_dentry)
200{
201 return 0;
202}
203
204static int cap_inode_readlink(struct dentry *dentry)
205{
206 return 0;
207}
208
209static int cap_inode_follow_link(struct dentry *dentry,
210 struct nameidata *nameidata)
211{
212 return 0;
213}
214
Al Viroe74f71e2011-06-20 19:38:15 -0400215static int cap_inode_permission(struct inode *inode, int mask)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200216{
217 return 0;
218}
219
220static int cap_inode_setattr(struct dentry *dentry, struct iattr *iattr)
221{
222 return 0;
223}
224
225static int cap_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
226{
227 return 0;
228}
229
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200230static void cap_inode_post_setxattr(struct dentry *dentry, const char *name,
231 const void *value, size_t size, int flags)
232{
233}
234
235static int cap_inode_getxattr(struct dentry *dentry, const char *name)
236{
237 return 0;
238}
239
240static int cap_inode_listxattr(struct dentry *dentry)
241{
242 return 0;
243}
244
245static int cap_inode_getsecurity(const struct inode *inode, const char *name,
246 void **buffer, bool alloc)
247{
248 return -EOPNOTSUPP;
249}
250
251static int cap_inode_setsecurity(struct inode *inode, const char *name,
252 const void *value, size_t size, int flags)
253{
254 return -EOPNOTSUPP;
255}
256
257static int cap_inode_listsecurity(struct inode *inode, char *buffer,
258 size_t buffer_size)
259{
260 return 0;
261}
262
263static void cap_inode_getsecid(const struct inode *inode, u32 *secid)
264{
265 *secid = 0;
266}
267
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900268#ifdef CONFIG_SECURITY_PATH
Al Viro04fc66e2011-11-21 14:58:38 -0500269static int cap_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900270 unsigned int dev)
271{
272 return 0;
273}
274
Al Viro4572bef2011-11-21 14:56:21 -0500275static int cap_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900276{
277 return 0;
278}
279
280static int cap_path_rmdir(struct path *dir, struct dentry *dentry)
281{
282 return 0;
283}
284
285static int cap_path_unlink(struct path *dir, struct dentry *dentry)
286{
287 return 0;
288}
289
290static int cap_path_symlink(struct path *dir, struct dentry *dentry,
291 const char *old_name)
292{
293 return 0;
294}
295
296static int cap_path_link(struct dentry *old_dentry, struct path *new_dir,
297 struct dentry *new_dentry)
298{
299 return 0;
300}
301
302static int cap_path_rename(struct path *old_path, struct dentry *old_dentry,
303 struct path *new_path, struct dentry *new_dentry)
304{
305 return 0;
306}
307
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +0900308static int cap_path_truncate(struct path *path)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900309{
310 return 0;
311}
Tetsuo Handa89eda062009-10-04 21:49:47 +0900312
Al Virocdcf1162011-12-08 10:51:53 -0500313static int cap_path_chmod(struct path *path, umode_t mode)
Tetsuo Handa89eda062009-10-04 21:49:47 +0900314{
315 return 0;
316}
317
Eric W. Biedermand2b31ca2012-06-01 16:14:19 -0600318static int cap_path_chown(struct path *path, kuid_t uid, kgid_t gid)
Tetsuo Handa89eda062009-10-04 21:49:47 +0900319{
320 return 0;
321}
Tetsuo Handa8b8efb42009-10-04 21:49:48 +0900322
323static int cap_path_chroot(struct path *root)
324{
325 return 0;
326}
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900327#endif
328
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200329static int cap_file_permission(struct file *file, int mask)
330{
331 return 0;
332}
333
334static int cap_file_alloc_security(struct file *file)
335{
336 return 0;
337}
338
339static void cap_file_free_security(struct file *file)
340{
341}
342
343static int cap_file_ioctl(struct file *file, unsigned int command,
344 unsigned long arg)
345{
346 return 0;
347}
348
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200349static int cap_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
350 unsigned long prot)
351{
352 return 0;
353}
354
355static int cap_file_lock(struct file *file, unsigned int cmd)
356{
357 return 0;
358}
359
360static int cap_file_fcntl(struct file *file, unsigned int cmd,
361 unsigned long arg)
362{
363 return 0;
364}
365
366static int cap_file_set_fowner(struct file *file)
367{
368 return 0;
369}
370
371static int cap_file_send_sigiotask(struct task_struct *tsk,
372 struct fown_struct *fown, int sig)
373{
374 return 0;
375}
376
377static int cap_file_receive(struct file *file)
378{
379 return 0;
380}
381
Eric Paris83d49852012-04-04 13:45:40 -0400382static int cap_file_open(struct file *file, const struct cred *cred)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200383{
384 return 0;
385}
386
387static int cap_task_create(unsigned long clone_flags)
388{
389 return 0;
390}
391
Kees Cook1a2a4d02011-12-21 12:17:03 -0800392static void cap_task_free(struct task_struct *task)
393{
394}
395
David Howellsee18d642009-09-02 09:14:21 +0100396static int cap_cred_alloc_blank(struct cred *cred, gfp_t gfp)
397{
398 return 0;
399}
400
David Howellsd84f4f92008-11-14 10:39:23 +1100401static void cap_cred_free(struct cred *cred)
402{
403}
404
405static int cap_cred_prepare(struct cred *new, const struct cred *old, gfp_t gfp)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200406{
407 return 0;
408}
409
David Howellsee18d642009-09-02 09:14:21 +0100410static void cap_cred_transfer(struct cred *new, const struct cred *old)
411{
412}
413
David Howells3a3b7ce2008-11-14 10:39:28 +1100414static int cap_kernel_act_as(struct cred *new, u32 secid)
415{
416 return 0;
417}
418
419static int cap_kernel_create_files_as(struct cred *new, struct inode *inode)
420{
421 return 0;
422}
423
Eric Parisdd8dbf22009-11-03 16:35:32 +1100424static int cap_kernel_module_request(char *kmod_name)
Eric Paris91884992009-08-13 09:44:57 -0400425{
426 return 0;
427}
428
Kees Cook2e72d512012-10-16 07:32:07 +1030429static int cap_kernel_module_from_file(struct file *file)
430{
431 return 0;
432}
433
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200434static int cap_task_setpgid(struct task_struct *p, pid_t pgid)
435{
436 return 0;
437}
438
439static int cap_task_getpgid(struct task_struct *p)
440{
441 return 0;
442}
443
444static int cap_task_getsid(struct task_struct *p)
445{
446 return 0;
447}
448
449static void cap_task_getsecid(struct task_struct *p, u32 *secid)
450{
451 *secid = 0;
452}
453
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200454static int cap_task_getioprio(struct task_struct *p)
455{
456 return 0;
457}
458
Jiri Slaby8fd00b42009-08-26 18:41:16 +0200459static int cap_task_setrlimit(struct task_struct *p, unsigned int resource,
460 struct rlimit *new_rlim)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200461{
462 return 0;
463}
464
465static int cap_task_getscheduler(struct task_struct *p)
466{
467 return 0;
468}
469
470static int cap_task_movememory(struct task_struct *p)
471{
472 return 0;
473}
474
475static int cap_task_wait(struct task_struct *p)
476{
477 return 0;
478}
479
480static int cap_task_kill(struct task_struct *p, struct siginfo *info,
481 int sig, u32 secid)
482{
483 return 0;
484}
485
486static void cap_task_to_inode(struct task_struct *p, struct inode *inode)
487{
488}
489
490static int cap_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
491{
492 return 0;
493}
494
495static void cap_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
496{
497 *secid = 0;
498}
499
500static int cap_msg_msg_alloc_security(struct msg_msg *msg)
501{
502 return 0;
503}
504
505static void cap_msg_msg_free_security(struct msg_msg *msg)
506{
507}
508
509static int cap_msg_queue_alloc_security(struct msg_queue *msq)
510{
511 return 0;
512}
513
514static void cap_msg_queue_free_security(struct msg_queue *msq)
515{
516}
517
518static int cap_msg_queue_associate(struct msg_queue *msq, int msqflg)
519{
520 return 0;
521}
522
523static int cap_msg_queue_msgctl(struct msg_queue *msq, int cmd)
524{
525 return 0;
526}
527
528static int cap_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
529 int msgflg)
530{
531 return 0;
532}
533
534static int cap_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
535 struct task_struct *target, long type, int mode)
536{
537 return 0;
538}
539
540static int cap_shm_alloc_security(struct shmid_kernel *shp)
541{
542 return 0;
543}
544
545static void cap_shm_free_security(struct shmid_kernel *shp)
546{
547}
548
549static int cap_shm_associate(struct shmid_kernel *shp, int shmflg)
550{
551 return 0;
552}
553
554static int cap_shm_shmctl(struct shmid_kernel *shp, int cmd)
555{
556 return 0;
557}
558
559static int cap_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr,
560 int shmflg)
561{
562 return 0;
563}
564
565static int cap_sem_alloc_security(struct sem_array *sma)
566{
567 return 0;
568}
569
570static void cap_sem_free_security(struct sem_array *sma)
571{
572}
573
574static int cap_sem_associate(struct sem_array *sma, int semflg)
575{
576 return 0;
577}
578
579static int cap_sem_semctl(struct sem_array *sma, int cmd)
580{
581 return 0;
582}
583
584static int cap_sem_semop(struct sem_array *sma, struct sembuf *sops,
585 unsigned nsops, int alter)
586{
587 return 0;
588}
589
590#ifdef CONFIG_SECURITY_NETWORK
David S. Miller3610cda2011-01-05 15:38:53 -0800591static int cap_unix_stream_connect(struct sock *sock, struct sock *other,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200592 struct sock *newsk)
593{
594 return 0;
595}
596
597static int cap_unix_may_send(struct socket *sock, struct socket *other)
598{
599 return 0;
600}
601
602static int cap_socket_create(int family, int type, int protocol, int kern)
603{
604 return 0;
605}
606
607static int cap_socket_post_create(struct socket *sock, int family, int type,
608 int protocol, int kern)
609{
610 return 0;
611}
612
613static int cap_socket_bind(struct socket *sock, struct sockaddr *address,
614 int addrlen)
615{
616 return 0;
617}
618
619static int cap_socket_connect(struct socket *sock, struct sockaddr *address,
620 int addrlen)
621{
622 return 0;
623}
624
625static int cap_socket_listen(struct socket *sock, int backlog)
626{
627 return 0;
628}
629
630static int cap_socket_accept(struct socket *sock, struct socket *newsock)
631{
632 return 0;
633}
634
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200635static int cap_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
636{
637 return 0;
638}
639
640static int cap_socket_recvmsg(struct socket *sock, struct msghdr *msg,
641 int size, int flags)
642{
643 return 0;
644}
645
646static int cap_socket_getsockname(struct socket *sock)
647{
648 return 0;
649}
650
651static int cap_socket_getpeername(struct socket *sock)
652{
653 return 0;
654}
655
656static int cap_socket_setsockopt(struct socket *sock, int level, int optname)
657{
658 return 0;
659}
660
661static int cap_socket_getsockopt(struct socket *sock, int level, int optname)
662{
663 return 0;
664}
665
666static int cap_socket_shutdown(struct socket *sock, int how)
667{
668 return 0;
669}
670
671static int cap_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
672{
673 return 0;
674}
675
676static int cap_socket_getpeersec_stream(struct socket *sock,
677 char __user *optval,
678 int __user *optlen, unsigned len)
679{
680 return -ENOPROTOOPT;
681}
682
683static int cap_socket_getpeersec_dgram(struct socket *sock,
684 struct sk_buff *skb, u32 *secid)
685{
686 return -ENOPROTOOPT;
687}
688
689static int cap_sk_alloc_security(struct sock *sk, int family, gfp_t priority)
690{
691 return 0;
692}
693
694static void cap_sk_free_security(struct sock *sk)
695{
696}
697
698static void cap_sk_clone_security(const struct sock *sk, struct sock *newsk)
699{
700}
701
702static void cap_sk_getsecid(struct sock *sk, u32 *secid)
703{
704}
705
706static void cap_sock_graft(struct sock *sk, struct socket *parent)
707{
708}
709
710static int cap_inet_conn_request(struct sock *sk, struct sk_buff *skb,
711 struct request_sock *req)
712{
713 return 0;
714}
715
716static void cap_inet_csk_clone(struct sock *newsk,
717 const struct request_sock *req)
718{
719}
720
721static void cap_inet_conn_established(struct sock *sk, struct sk_buff *skb)
722{
723}
724
Eric Paris2606fd12010-10-13 16:24:41 -0400725static int cap_secmark_relabel_packet(u32 secid)
726{
727 return 0;
728}
Paul Moore2b980db2009-08-28 18:12:43 -0400729
Eric Paris2606fd12010-10-13 16:24:41 -0400730static void cap_secmark_refcount_inc(void)
731{
732}
733
734static void cap_secmark_refcount_dec(void)
735{
736}
Paul Moore2b980db2009-08-28 18:12:43 -0400737
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200738static void cap_req_classify_flow(const struct request_sock *req,
739 struct flowi *fl)
740{
741}
Paul Moore2b980db2009-08-28 18:12:43 -0400742
Paul Moore5dbbaf22013-01-14 07:12:19 +0000743static int cap_tun_dev_alloc_security(void **security)
744{
745 return 0;
746}
747
748static void cap_tun_dev_free_security(void *security)
749{
750}
751
Paul Moore2b980db2009-08-28 18:12:43 -0400752static int cap_tun_dev_create(void)
753{
754 return 0;
755}
756
Paul Moore5dbbaf22013-01-14 07:12:19 +0000757static int cap_tun_dev_attach_queue(void *security)
Paul Moore2b980db2009-08-28 18:12:43 -0400758{
Paul Moore5dbbaf22013-01-14 07:12:19 +0000759 return 0;
Paul Moore2b980db2009-08-28 18:12:43 -0400760}
761
Paul Moore5dbbaf22013-01-14 07:12:19 +0000762static int cap_tun_dev_attach(struct sock *sk, void *security)
763{
764 return 0;
765}
766
767static int cap_tun_dev_open(void *security)
Paul Moore2b980db2009-08-28 18:12:43 -0400768{
769 return 0;
770}
Eric Dumazetca10b9e2013-04-08 17:58:11 +0000771
772static void cap_skb_owned_by(struct sk_buff *skb, struct sock *sk)
773{
774}
775
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200776#endif /* CONFIG_SECURITY_NETWORK */
777
778#ifdef CONFIG_SECURITY_NETWORK_XFRM
779static int cap_xfrm_policy_alloc_security(struct xfrm_sec_ctx **ctxp,
Nikolay Aleksandrov52a4c642014-03-07 12:44:19 +0100780 struct xfrm_user_sec_ctx *sec_ctx,
781 gfp_t gfp)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200782{
783 return 0;
784}
785
786static int cap_xfrm_policy_clone_security(struct xfrm_sec_ctx *old_ctx,
787 struct xfrm_sec_ctx **new_ctxp)
788{
789 return 0;
790}
791
792static void cap_xfrm_policy_free_security(struct xfrm_sec_ctx *ctx)
793{
794}
795
796static int cap_xfrm_policy_delete_security(struct xfrm_sec_ctx *ctx)
797{
798 return 0;
799}
800
Paul Moore2e5aa862013-07-23 17:38:38 -0400801static int cap_xfrm_state_alloc(struct xfrm_state *x,
802 struct xfrm_user_sec_ctx *sec_ctx)
803{
804 return 0;
805}
806
807static int cap_xfrm_state_alloc_acquire(struct xfrm_state *x,
808 struct xfrm_sec_ctx *polsec,
809 u32 secid)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200810{
811 return 0;
812}
813
814static void cap_xfrm_state_free_security(struct xfrm_state *x)
815{
816}
817
818static int cap_xfrm_state_delete_security(struct xfrm_state *x)
819{
820 return 0;
821}
822
823static int cap_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 sk_sid, u8 dir)
824{
825 return 0;
826}
827
828static int cap_xfrm_state_pol_flow_match(struct xfrm_state *x,
829 struct xfrm_policy *xp,
David S. Millere33f7702011-02-22 18:13:15 -0800830 const struct flowi *fl)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200831{
832 return 1;
833}
834
835static int cap_xfrm_decode_session(struct sk_buff *skb, u32 *fl, int ckall)
836{
837 return 0;
838}
839
840#endif /* CONFIG_SECURITY_NETWORK_XFRM */
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200841static void cap_d_instantiate(struct dentry *dentry, struct inode *inode)
842{
843}
844
845static int cap_getprocattr(struct task_struct *p, char *name, char **value)
846{
847 return -EINVAL;
848}
849
850static int cap_setprocattr(struct task_struct *p, char *name, void *value,
851 size_t size)
852{
853 return -EINVAL;
854}
855
David Quigley746df9b2013-05-22 12:50:35 -0400856static int cap_ismaclabel(const char *name)
857{
858 return 0;
859}
860
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200861static int cap_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
862{
863 return -EOPNOTSUPP;
864}
865
866static int cap_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
867{
Eric Paris2606fd12010-10-13 16:24:41 -0400868 *secid = 0;
869 return 0;
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200870}
871
872static void cap_release_secctx(char *secdata, u32 seclen)
873{
874}
875
David P. Quigley1ee65e32009-09-03 14:25:57 -0400876static int cap_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
877{
878 return 0;
879}
880
881static int cap_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
882{
883 return 0;
884}
885
886static int cap_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
887{
J. Bruce Fields0d422af2013-05-08 18:05:41 -0400888 return -EOPNOTSUPP;
David P. Quigley1ee65e32009-09-03 14:25:57 -0400889}
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200890#ifdef CONFIG_KEYS
David Howellsd84f4f92008-11-14 10:39:23 +1100891static int cap_key_alloc(struct key *key, const struct cred *cred,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200892 unsigned long flags)
893{
894 return 0;
895}
896
897static void cap_key_free(struct key *key)
898{
899}
900
David Howellsd84f4f92008-11-14 10:39:23 +1100901static int cap_key_permission(key_ref_t key_ref, const struct cred *cred,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200902 key_perm_t perm)
903{
904 return 0;
905}
906
907static int cap_key_getsecurity(struct key *key, char **_buffer)
908{
909 *_buffer = NULL;
910 return 0;
911}
912
913#endif /* CONFIG_KEYS */
914
915#ifdef CONFIG_AUDIT
916static int cap_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
917{
918 return 0;
919}
920
921static int cap_audit_rule_known(struct audit_krule *krule)
922{
923 return 0;
924}
925
926static int cap_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
927 struct audit_context *actx)
928{
929 return 0;
930}
931
932static void cap_audit_rule_free(void *lsmrule)
933{
934}
935#endif /* CONFIG_AUDIT */
936
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200937#define set_to_cap_if_null(ops, function) \
938 do { \
939 if (!ops->function) { \
940 ops->function = cap_##function; \
941 pr_debug("Had to override the " #function \
942 " security operation with the default.\n");\
943 } \
944 } while (0)
945
Tetsuo Handac80901f2010-05-14 12:01:26 +0900946void __init security_fixup_ops(struct security_operations *ops)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200947{
Stephen Smalley6639e3d2012-11-05 08:15:34 -0500948 set_to_cap_if_null(ops, binder_set_context_mgr);
949 set_to_cap_if_null(ops, binder_transaction);
950 set_to_cap_if_null(ops, binder_transfer_binder);
951 set_to_cap_if_null(ops, binder_transfer_file);
Ingo Molnar9e488582009-05-07 19:26:19 +1000952 set_to_cap_if_null(ops, ptrace_access_check);
David Howells5cd9c582008-08-14 11:37:28 +0100953 set_to_cap_if_null(ops, ptrace_traceme);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200954 set_to_cap_if_null(ops, capget);
David Howellsd84f4f92008-11-14 10:39:23 +1100955 set_to_cap_if_null(ops, capset);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200956 set_to_cap_if_null(ops, capable);
957 set_to_cap_if_null(ops, quotactl);
958 set_to_cap_if_null(ops, quota_on);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200959 set_to_cap_if_null(ops, syslog);
960 set_to_cap_if_null(ops, settime);
961 set_to_cap_if_null(ops, vm_enough_memory);
David Howellsa6f76f22008-11-14 10:39:24 +1100962 set_to_cap_if_null(ops, bprm_set_creds);
963 set_to_cap_if_null(ops, bprm_committing_creds);
964 set_to_cap_if_null(ops, bprm_committed_creds);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200965 set_to_cap_if_null(ops, bprm_check_security);
966 set_to_cap_if_null(ops, bprm_secureexec);
967 set_to_cap_if_null(ops, sb_alloc_security);
968 set_to_cap_if_null(ops, sb_free_security);
969 set_to_cap_if_null(ops, sb_copy_data);
Eric Parisff36fe22011-03-03 16:09:14 -0500970 set_to_cap_if_null(ops, sb_remount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200971 set_to_cap_if_null(ops, sb_kern_mount);
972 set_to_cap_if_null(ops, sb_show_options);
973 set_to_cap_if_null(ops, sb_statfs);
974 set_to_cap_if_null(ops, sb_mount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200975 set_to_cap_if_null(ops, sb_umount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200976 set_to_cap_if_null(ops, sb_pivotroot);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200977 set_to_cap_if_null(ops, sb_set_mnt_opts);
978 set_to_cap_if_null(ops, sb_clone_mnt_opts);
979 set_to_cap_if_null(ops, sb_parse_opts_str);
David Quigleyd47be3d2013-05-22 12:50:34 -0400980 set_to_cap_if_null(ops, dentry_init_security);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200981 set_to_cap_if_null(ops, inode_alloc_security);
982 set_to_cap_if_null(ops, inode_free_security);
983 set_to_cap_if_null(ops, inode_init_security);
984 set_to_cap_if_null(ops, inode_create);
985 set_to_cap_if_null(ops, inode_link);
986 set_to_cap_if_null(ops, inode_unlink);
987 set_to_cap_if_null(ops, inode_symlink);
988 set_to_cap_if_null(ops, inode_mkdir);
989 set_to_cap_if_null(ops, inode_rmdir);
990 set_to_cap_if_null(ops, inode_mknod);
991 set_to_cap_if_null(ops, inode_rename);
992 set_to_cap_if_null(ops, inode_readlink);
993 set_to_cap_if_null(ops, inode_follow_link);
994 set_to_cap_if_null(ops, inode_permission);
995 set_to_cap_if_null(ops, inode_setattr);
996 set_to_cap_if_null(ops, inode_getattr);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200997 set_to_cap_if_null(ops, inode_setxattr);
998 set_to_cap_if_null(ops, inode_post_setxattr);
999 set_to_cap_if_null(ops, inode_getxattr);
1000 set_to_cap_if_null(ops, inode_listxattr);
1001 set_to_cap_if_null(ops, inode_removexattr);
1002 set_to_cap_if_null(ops, inode_need_killpriv);
1003 set_to_cap_if_null(ops, inode_killpriv);
1004 set_to_cap_if_null(ops, inode_getsecurity);
1005 set_to_cap_if_null(ops, inode_setsecurity);
1006 set_to_cap_if_null(ops, inode_listsecurity);
1007 set_to_cap_if_null(ops, inode_getsecid);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09001008#ifdef CONFIG_SECURITY_PATH
1009 set_to_cap_if_null(ops, path_mknod);
1010 set_to_cap_if_null(ops, path_mkdir);
1011 set_to_cap_if_null(ops, path_rmdir);
1012 set_to_cap_if_null(ops, path_unlink);
1013 set_to_cap_if_null(ops, path_symlink);
1014 set_to_cap_if_null(ops, path_link);
1015 set_to_cap_if_null(ops, path_rename);
1016 set_to_cap_if_null(ops, path_truncate);
Tetsuo Handa89eda062009-10-04 21:49:47 +09001017 set_to_cap_if_null(ops, path_chmod);
1018 set_to_cap_if_null(ops, path_chown);
Tetsuo Handa8b8efb42009-10-04 21:49:48 +09001019 set_to_cap_if_null(ops, path_chroot);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09001020#endif
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001021 set_to_cap_if_null(ops, file_permission);
1022 set_to_cap_if_null(ops, file_alloc_security);
1023 set_to_cap_if_null(ops, file_free_security);
1024 set_to_cap_if_null(ops, file_ioctl);
Al Viroe5467852012-05-30 13:30:51 -04001025 set_to_cap_if_null(ops, mmap_addr);
1026 set_to_cap_if_null(ops, mmap_file);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001027 set_to_cap_if_null(ops, file_mprotect);
1028 set_to_cap_if_null(ops, file_lock);
1029 set_to_cap_if_null(ops, file_fcntl);
1030 set_to_cap_if_null(ops, file_set_fowner);
1031 set_to_cap_if_null(ops, file_send_sigiotask);
1032 set_to_cap_if_null(ops, file_receive);
Eric Paris83d49852012-04-04 13:45:40 -04001033 set_to_cap_if_null(ops, file_open);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001034 set_to_cap_if_null(ops, task_create);
Kees Cook1a2a4d02011-12-21 12:17:03 -08001035 set_to_cap_if_null(ops, task_free);
David Howellsee18d642009-09-02 09:14:21 +01001036 set_to_cap_if_null(ops, cred_alloc_blank);
David Howellsf1752ee2008-11-14 10:39:17 +11001037 set_to_cap_if_null(ops, cred_free);
David Howellsd84f4f92008-11-14 10:39:23 +11001038 set_to_cap_if_null(ops, cred_prepare);
David Howellsee18d642009-09-02 09:14:21 +01001039 set_to_cap_if_null(ops, cred_transfer);
David Howells3a3b7ce2008-11-14 10:39:28 +11001040 set_to_cap_if_null(ops, kernel_act_as);
1041 set_to_cap_if_null(ops, kernel_create_files_as);
Eric Paris91884992009-08-13 09:44:57 -04001042 set_to_cap_if_null(ops, kernel_module_request);
Kees Cook2e72d512012-10-16 07:32:07 +10301043 set_to_cap_if_null(ops, kernel_module_from_file);
David Howellsd84f4f92008-11-14 10:39:23 +11001044 set_to_cap_if_null(ops, task_fix_setuid);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001045 set_to_cap_if_null(ops, task_setpgid);
1046 set_to_cap_if_null(ops, task_getpgid);
1047 set_to_cap_if_null(ops, task_getsid);
1048 set_to_cap_if_null(ops, task_getsecid);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001049 set_to_cap_if_null(ops, task_setnice);
1050 set_to_cap_if_null(ops, task_setioprio);
1051 set_to_cap_if_null(ops, task_getioprio);
1052 set_to_cap_if_null(ops, task_setrlimit);
1053 set_to_cap_if_null(ops, task_setscheduler);
1054 set_to_cap_if_null(ops, task_getscheduler);
1055 set_to_cap_if_null(ops, task_movememory);
1056 set_to_cap_if_null(ops, task_wait);
1057 set_to_cap_if_null(ops, task_kill);
1058 set_to_cap_if_null(ops, task_prctl);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001059 set_to_cap_if_null(ops, task_to_inode);
1060 set_to_cap_if_null(ops, ipc_permission);
1061 set_to_cap_if_null(ops, ipc_getsecid);
1062 set_to_cap_if_null(ops, msg_msg_alloc_security);
1063 set_to_cap_if_null(ops, msg_msg_free_security);
1064 set_to_cap_if_null(ops, msg_queue_alloc_security);
1065 set_to_cap_if_null(ops, msg_queue_free_security);
1066 set_to_cap_if_null(ops, msg_queue_associate);
1067 set_to_cap_if_null(ops, msg_queue_msgctl);
1068 set_to_cap_if_null(ops, msg_queue_msgsnd);
1069 set_to_cap_if_null(ops, msg_queue_msgrcv);
1070 set_to_cap_if_null(ops, shm_alloc_security);
1071 set_to_cap_if_null(ops, shm_free_security);
1072 set_to_cap_if_null(ops, shm_associate);
1073 set_to_cap_if_null(ops, shm_shmctl);
1074 set_to_cap_if_null(ops, shm_shmat);
1075 set_to_cap_if_null(ops, sem_alloc_security);
1076 set_to_cap_if_null(ops, sem_free_security);
1077 set_to_cap_if_null(ops, sem_associate);
1078 set_to_cap_if_null(ops, sem_semctl);
1079 set_to_cap_if_null(ops, sem_semop);
1080 set_to_cap_if_null(ops, netlink_send);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001081 set_to_cap_if_null(ops, d_instantiate);
1082 set_to_cap_if_null(ops, getprocattr);
1083 set_to_cap_if_null(ops, setprocattr);
David Quigley746df9b2013-05-22 12:50:35 -04001084 set_to_cap_if_null(ops, ismaclabel);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001085 set_to_cap_if_null(ops, secid_to_secctx);
1086 set_to_cap_if_null(ops, secctx_to_secid);
1087 set_to_cap_if_null(ops, release_secctx);
David P. Quigley1ee65e32009-09-03 14:25:57 -04001088 set_to_cap_if_null(ops, inode_notifysecctx);
1089 set_to_cap_if_null(ops, inode_setsecctx);
1090 set_to_cap_if_null(ops, inode_getsecctx);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001091#ifdef CONFIG_SECURITY_NETWORK
1092 set_to_cap_if_null(ops, unix_stream_connect);
1093 set_to_cap_if_null(ops, unix_may_send);
1094 set_to_cap_if_null(ops, socket_create);
1095 set_to_cap_if_null(ops, socket_post_create);
1096 set_to_cap_if_null(ops, socket_bind);
1097 set_to_cap_if_null(ops, socket_connect);
1098 set_to_cap_if_null(ops, socket_listen);
1099 set_to_cap_if_null(ops, socket_accept);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001100 set_to_cap_if_null(ops, socket_sendmsg);
1101 set_to_cap_if_null(ops, socket_recvmsg);
1102 set_to_cap_if_null(ops, socket_getsockname);
1103 set_to_cap_if_null(ops, socket_getpeername);
1104 set_to_cap_if_null(ops, socket_setsockopt);
1105 set_to_cap_if_null(ops, socket_getsockopt);
1106 set_to_cap_if_null(ops, socket_shutdown);
1107 set_to_cap_if_null(ops, socket_sock_rcv_skb);
1108 set_to_cap_if_null(ops, socket_getpeersec_stream);
1109 set_to_cap_if_null(ops, socket_getpeersec_dgram);
1110 set_to_cap_if_null(ops, sk_alloc_security);
1111 set_to_cap_if_null(ops, sk_free_security);
1112 set_to_cap_if_null(ops, sk_clone_security);
1113 set_to_cap_if_null(ops, sk_getsecid);
1114 set_to_cap_if_null(ops, sock_graft);
1115 set_to_cap_if_null(ops, inet_conn_request);
1116 set_to_cap_if_null(ops, inet_csk_clone);
1117 set_to_cap_if_null(ops, inet_conn_established);
Eric Paris2606fd12010-10-13 16:24:41 -04001118 set_to_cap_if_null(ops, secmark_relabel_packet);
1119 set_to_cap_if_null(ops, secmark_refcount_inc);
1120 set_to_cap_if_null(ops, secmark_refcount_dec);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001121 set_to_cap_if_null(ops, req_classify_flow);
Paul Moore5dbbaf22013-01-14 07:12:19 +00001122 set_to_cap_if_null(ops, tun_dev_alloc_security);
1123 set_to_cap_if_null(ops, tun_dev_free_security);
Paul Moore2b980db2009-08-28 18:12:43 -04001124 set_to_cap_if_null(ops, tun_dev_create);
Paul Moore5dbbaf22013-01-14 07:12:19 +00001125 set_to_cap_if_null(ops, tun_dev_open);
1126 set_to_cap_if_null(ops, tun_dev_attach_queue);
Paul Moore2b980db2009-08-28 18:12:43 -04001127 set_to_cap_if_null(ops, tun_dev_attach);
Eric Dumazetca10b9e2013-04-08 17:58:11 +00001128 set_to_cap_if_null(ops, skb_owned_by);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001129#endif /* CONFIG_SECURITY_NETWORK */
1130#ifdef CONFIG_SECURITY_NETWORK_XFRM
1131 set_to_cap_if_null(ops, xfrm_policy_alloc_security);
1132 set_to_cap_if_null(ops, xfrm_policy_clone_security);
1133 set_to_cap_if_null(ops, xfrm_policy_free_security);
1134 set_to_cap_if_null(ops, xfrm_policy_delete_security);
Paul Moore2e5aa862013-07-23 17:38:38 -04001135 set_to_cap_if_null(ops, xfrm_state_alloc);
1136 set_to_cap_if_null(ops, xfrm_state_alloc_acquire);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001137 set_to_cap_if_null(ops, xfrm_state_free_security);
1138 set_to_cap_if_null(ops, xfrm_state_delete_security);
1139 set_to_cap_if_null(ops, xfrm_policy_lookup);
1140 set_to_cap_if_null(ops, xfrm_state_pol_flow_match);
1141 set_to_cap_if_null(ops, xfrm_decode_session);
1142#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1143#ifdef CONFIG_KEYS
1144 set_to_cap_if_null(ops, key_alloc);
1145 set_to_cap_if_null(ops, key_free);
1146 set_to_cap_if_null(ops, key_permission);
1147 set_to_cap_if_null(ops, key_getsecurity);
1148#endif /* CONFIG_KEYS */
1149#ifdef CONFIG_AUDIT
1150 set_to_cap_if_null(ops, audit_rule_init);
1151 set_to_cap_if_null(ops, audit_rule_known);
1152 set_to_cap_if_null(ops, audit_rule_match);
1153 set_to_cap_if_null(ops, audit_rule_free);
1154#endif
1155}