blob: d0a49eeca59ea584d7abbc29f49820f1764a8ed7 [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 Smalley48a23702012-11-05 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 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
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
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200418static int cap_task_setpgid(struct task_struct *p, pid_t pgid)
419{
420 return 0;
421}
422
423static int cap_task_getpgid(struct task_struct *p)
424{
425 return 0;
426}
427
428static int cap_task_getsid(struct task_struct *p)
429{
430 return 0;
431}
432
433static void cap_task_getsecid(struct task_struct *p, u32 *secid)
434{
435 *secid = 0;
436}
437
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200438static int cap_task_getioprio(struct task_struct *p)
439{
440 return 0;
441}
442
Jiri Slaby8fd00b42009-08-26 18:41:16 +0200443static int cap_task_setrlimit(struct task_struct *p, unsigned int resource,
444 struct rlimit *new_rlim)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200445{
446 return 0;
447}
448
449static int cap_task_getscheduler(struct task_struct *p)
450{
451 return 0;
452}
453
454static int cap_task_movememory(struct task_struct *p)
455{
456 return 0;
457}
458
459static int cap_task_wait(struct task_struct *p)
460{
461 return 0;
462}
463
464static int cap_task_kill(struct task_struct *p, struct siginfo *info,
465 int sig, u32 secid)
466{
467 return 0;
468}
469
470static void cap_task_to_inode(struct task_struct *p, struct inode *inode)
471{
472}
473
474static int cap_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
475{
476 return 0;
477}
478
479static void cap_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
480{
481 *secid = 0;
482}
483
484static int cap_msg_msg_alloc_security(struct msg_msg *msg)
485{
486 return 0;
487}
488
489static void cap_msg_msg_free_security(struct msg_msg *msg)
490{
491}
492
493static int cap_msg_queue_alloc_security(struct msg_queue *msq)
494{
495 return 0;
496}
497
498static void cap_msg_queue_free_security(struct msg_queue *msq)
499{
500}
501
502static int cap_msg_queue_associate(struct msg_queue *msq, int msqflg)
503{
504 return 0;
505}
506
507static int cap_msg_queue_msgctl(struct msg_queue *msq, int cmd)
508{
509 return 0;
510}
511
512static int cap_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
513 int msgflg)
514{
515 return 0;
516}
517
518static int cap_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
519 struct task_struct *target, long type, int mode)
520{
521 return 0;
522}
523
524static int cap_shm_alloc_security(struct shmid_kernel *shp)
525{
526 return 0;
527}
528
529static void cap_shm_free_security(struct shmid_kernel *shp)
530{
531}
532
533static int cap_shm_associate(struct shmid_kernel *shp, int shmflg)
534{
535 return 0;
536}
537
538static int cap_shm_shmctl(struct shmid_kernel *shp, int cmd)
539{
540 return 0;
541}
542
543static int cap_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr,
544 int shmflg)
545{
546 return 0;
547}
548
549static int cap_sem_alloc_security(struct sem_array *sma)
550{
551 return 0;
552}
553
554static void cap_sem_free_security(struct sem_array *sma)
555{
556}
557
558static int cap_sem_associate(struct sem_array *sma, int semflg)
559{
560 return 0;
561}
562
563static int cap_sem_semctl(struct sem_array *sma, int cmd)
564{
565 return 0;
566}
567
568static int cap_sem_semop(struct sem_array *sma, struct sembuf *sops,
569 unsigned nsops, int alter)
570{
571 return 0;
572}
573
574#ifdef CONFIG_SECURITY_NETWORK
David S. Miller3610cda2011-01-05 15:38:53 -0800575static int cap_unix_stream_connect(struct sock *sock, struct sock *other,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200576 struct sock *newsk)
577{
578 return 0;
579}
580
581static int cap_unix_may_send(struct socket *sock, struct socket *other)
582{
583 return 0;
584}
585
586static int cap_socket_create(int family, int type, int protocol, int kern)
587{
588 return 0;
589}
590
591static int cap_socket_post_create(struct socket *sock, int family, int type,
592 int protocol, int kern)
593{
594 return 0;
595}
596
597static int cap_socket_bind(struct socket *sock, struct sockaddr *address,
598 int addrlen)
599{
600 return 0;
601}
602
603static int cap_socket_connect(struct socket *sock, struct sockaddr *address,
604 int addrlen)
605{
606 return 0;
607}
608
609static int cap_socket_listen(struct socket *sock, int backlog)
610{
611 return 0;
612}
613
614static int cap_socket_accept(struct socket *sock, struct socket *newsock)
615{
616 return 0;
617}
618
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200619static int cap_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
620{
621 return 0;
622}
623
624static int cap_socket_recvmsg(struct socket *sock, struct msghdr *msg,
625 int size, int flags)
626{
627 return 0;
628}
629
630static int cap_socket_getsockname(struct socket *sock)
631{
632 return 0;
633}
634
635static int cap_socket_getpeername(struct socket *sock)
636{
637 return 0;
638}
639
640static int cap_socket_setsockopt(struct socket *sock, int level, int optname)
641{
642 return 0;
643}
644
645static int cap_socket_getsockopt(struct socket *sock, int level, int optname)
646{
647 return 0;
648}
649
650static int cap_socket_shutdown(struct socket *sock, int how)
651{
652 return 0;
653}
654
655static int cap_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
656{
657 return 0;
658}
659
660static int cap_socket_getpeersec_stream(struct socket *sock,
661 char __user *optval,
662 int __user *optlen, unsigned len)
663{
664 return -ENOPROTOOPT;
665}
666
667static int cap_socket_getpeersec_dgram(struct socket *sock,
668 struct sk_buff *skb, u32 *secid)
669{
670 return -ENOPROTOOPT;
671}
672
673static int cap_sk_alloc_security(struct sock *sk, int family, gfp_t priority)
674{
675 return 0;
676}
677
678static void cap_sk_free_security(struct sock *sk)
679{
680}
681
682static void cap_sk_clone_security(const struct sock *sk, struct sock *newsk)
683{
684}
685
686static void cap_sk_getsecid(struct sock *sk, u32 *secid)
687{
688}
689
690static void cap_sock_graft(struct sock *sk, struct socket *parent)
691{
692}
693
694static int cap_inet_conn_request(struct sock *sk, struct sk_buff *skb,
695 struct request_sock *req)
696{
697 return 0;
698}
699
700static void cap_inet_csk_clone(struct sock *newsk,
701 const struct request_sock *req)
702{
703}
704
705static void cap_inet_conn_established(struct sock *sk, struct sk_buff *skb)
706{
707}
708
Eric Paris2606fd12010-10-13 16:24:41 -0400709static int cap_secmark_relabel_packet(u32 secid)
710{
711 return 0;
712}
Paul Moore2b980db2009-08-28 18:12:43 -0400713
Eric Paris2606fd12010-10-13 16:24:41 -0400714static void cap_secmark_refcount_inc(void)
715{
716}
717
718static void cap_secmark_refcount_dec(void)
719{
720}
Paul Moore2b980db2009-08-28 18:12:43 -0400721
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200722static void cap_req_classify_flow(const struct request_sock *req,
723 struct flowi *fl)
724{
725}
Paul Moore2b980db2009-08-28 18:12:43 -0400726
727static int cap_tun_dev_create(void)
728{
729 return 0;
730}
731
732static void cap_tun_dev_post_create(struct sock *sk)
733{
734}
735
736static int cap_tun_dev_attach(struct sock *sk)
737{
738 return 0;
739}
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200740#endif /* CONFIG_SECURITY_NETWORK */
741
742#ifdef CONFIG_SECURITY_NETWORK_XFRM
743static int cap_xfrm_policy_alloc_security(struct xfrm_sec_ctx **ctxp,
744 struct xfrm_user_sec_ctx *sec_ctx)
745{
746 return 0;
747}
748
749static int cap_xfrm_policy_clone_security(struct xfrm_sec_ctx *old_ctx,
750 struct xfrm_sec_ctx **new_ctxp)
751{
752 return 0;
753}
754
755static void cap_xfrm_policy_free_security(struct xfrm_sec_ctx *ctx)
756{
757}
758
759static int cap_xfrm_policy_delete_security(struct xfrm_sec_ctx *ctx)
760{
761 return 0;
762}
763
764static int cap_xfrm_state_alloc_security(struct xfrm_state *x,
765 struct xfrm_user_sec_ctx *sec_ctx,
766 u32 secid)
767{
768 return 0;
769}
770
771static void cap_xfrm_state_free_security(struct xfrm_state *x)
772{
773}
774
775static int cap_xfrm_state_delete_security(struct xfrm_state *x)
776{
777 return 0;
778}
779
780static int cap_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 sk_sid, u8 dir)
781{
782 return 0;
783}
784
785static int cap_xfrm_state_pol_flow_match(struct xfrm_state *x,
786 struct xfrm_policy *xp,
David S. Millere33f7702011-02-22 18:13:15 -0800787 const struct flowi *fl)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200788{
789 return 1;
790}
791
792static int cap_xfrm_decode_session(struct sk_buff *skb, u32 *fl, int ckall)
793{
794 return 0;
795}
796
797#endif /* CONFIG_SECURITY_NETWORK_XFRM */
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200798static void cap_d_instantiate(struct dentry *dentry, struct inode *inode)
799{
800}
801
802static int cap_getprocattr(struct task_struct *p, char *name, char **value)
803{
804 return -EINVAL;
805}
806
807static int cap_setprocattr(struct task_struct *p, char *name, void *value,
808 size_t size)
809{
810 return -EINVAL;
811}
812
813static int cap_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
814{
815 return -EOPNOTSUPP;
816}
817
818static int cap_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
819{
Eric Paris2606fd12010-10-13 16:24:41 -0400820 *secid = 0;
821 return 0;
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200822}
823
824static void cap_release_secctx(char *secdata, u32 seclen)
825{
826}
827
David P. Quigley1ee65e32009-09-03 14:25:57 -0400828static int cap_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
829{
830 return 0;
831}
832
833static int cap_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
834{
835 return 0;
836}
837
838static int cap_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
839{
840 return 0;
841}
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200842#ifdef CONFIG_KEYS
David Howellsd84f4f92008-11-14 10:39:23 +1100843static int cap_key_alloc(struct key *key, const struct cred *cred,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200844 unsigned long flags)
845{
846 return 0;
847}
848
849static void cap_key_free(struct key *key)
850{
851}
852
David Howellsd84f4f92008-11-14 10:39:23 +1100853static int cap_key_permission(key_ref_t key_ref, const struct cred *cred,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200854 key_perm_t perm)
855{
856 return 0;
857}
858
859static int cap_key_getsecurity(struct key *key, char **_buffer)
860{
861 *_buffer = NULL;
862 return 0;
863}
864
865#endif /* CONFIG_KEYS */
866
867#ifdef CONFIG_AUDIT
868static int cap_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
869{
870 return 0;
871}
872
873static int cap_audit_rule_known(struct audit_krule *krule)
874{
875 return 0;
876}
877
878static int cap_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
879 struct audit_context *actx)
880{
881 return 0;
882}
883
884static void cap_audit_rule_free(void *lsmrule)
885{
886}
887#endif /* CONFIG_AUDIT */
888
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200889#define set_to_cap_if_null(ops, function) \
890 do { \
891 if (!ops->function) { \
892 ops->function = cap_##function; \
893 pr_debug("Had to override the " #function \
894 " security operation with the default.\n");\
895 } \
896 } while (0)
897
Tetsuo Handac80901f2010-05-14 12:01:26 +0900898void __init security_fixup_ops(struct security_operations *ops)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200899{
Stephen Smalley48a23702012-11-05 08:15:34 -0500900 set_to_cap_if_null(ops, binder_set_context_mgr);
901 set_to_cap_if_null(ops, binder_transaction);
902 set_to_cap_if_null(ops, binder_transfer_binder);
903 set_to_cap_if_null(ops, binder_transfer_file);
Ingo Molnar9e488582009-05-07 19:26:19 +1000904 set_to_cap_if_null(ops, ptrace_access_check);
David Howells5cd9c582008-08-14 11:37:28 +0100905 set_to_cap_if_null(ops, ptrace_traceme);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200906 set_to_cap_if_null(ops, capget);
David Howellsd84f4f92008-11-14 10:39:23 +1100907 set_to_cap_if_null(ops, capset);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200908 set_to_cap_if_null(ops, capable);
909 set_to_cap_if_null(ops, quotactl);
910 set_to_cap_if_null(ops, quota_on);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200911 set_to_cap_if_null(ops, syslog);
912 set_to_cap_if_null(ops, settime);
913 set_to_cap_if_null(ops, vm_enough_memory);
David Howellsa6f76f22008-11-14 10:39:24 +1100914 set_to_cap_if_null(ops, bprm_set_creds);
915 set_to_cap_if_null(ops, bprm_committing_creds);
916 set_to_cap_if_null(ops, bprm_committed_creds);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200917 set_to_cap_if_null(ops, bprm_check_security);
918 set_to_cap_if_null(ops, bprm_secureexec);
919 set_to_cap_if_null(ops, sb_alloc_security);
920 set_to_cap_if_null(ops, sb_free_security);
921 set_to_cap_if_null(ops, sb_copy_data);
Eric Parisff36fe22011-03-03 16:09:14 -0500922 set_to_cap_if_null(ops, sb_remount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200923 set_to_cap_if_null(ops, sb_kern_mount);
924 set_to_cap_if_null(ops, sb_show_options);
925 set_to_cap_if_null(ops, sb_statfs);
926 set_to_cap_if_null(ops, sb_mount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200927 set_to_cap_if_null(ops, sb_umount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200928 set_to_cap_if_null(ops, sb_pivotroot);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200929 set_to_cap_if_null(ops, sb_set_mnt_opts);
930 set_to_cap_if_null(ops, sb_clone_mnt_opts);
931 set_to_cap_if_null(ops, sb_parse_opts_str);
932 set_to_cap_if_null(ops, inode_alloc_security);
933 set_to_cap_if_null(ops, inode_free_security);
934 set_to_cap_if_null(ops, inode_init_security);
935 set_to_cap_if_null(ops, inode_create);
936 set_to_cap_if_null(ops, inode_link);
937 set_to_cap_if_null(ops, inode_unlink);
938 set_to_cap_if_null(ops, inode_symlink);
939 set_to_cap_if_null(ops, inode_mkdir);
940 set_to_cap_if_null(ops, inode_rmdir);
941 set_to_cap_if_null(ops, inode_mknod);
942 set_to_cap_if_null(ops, inode_rename);
943 set_to_cap_if_null(ops, inode_readlink);
944 set_to_cap_if_null(ops, inode_follow_link);
945 set_to_cap_if_null(ops, inode_permission);
946 set_to_cap_if_null(ops, inode_setattr);
947 set_to_cap_if_null(ops, inode_getattr);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200948 set_to_cap_if_null(ops, inode_setxattr);
949 set_to_cap_if_null(ops, inode_post_setxattr);
950 set_to_cap_if_null(ops, inode_getxattr);
951 set_to_cap_if_null(ops, inode_listxattr);
952 set_to_cap_if_null(ops, inode_removexattr);
953 set_to_cap_if_null(ops, inode_need_killpriv);
954 set_to_cap_if_null(ops, inode_killpriv);
955 set_to_cap_if_null(ops, inode_getsecurity);
956 set_to_cap_if_null(ops, inode_setsecurity);
957 set_to_cap_if_null(ops, inode_listsecurity);
958 set_to_cap_if_null(ops, inode_getsecid);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900959#ifdef CONFIG_SECURITY_PATH
960 set_to_cap_if_null(ops, path_mknod);
961 set_to_cap_if_null(ops, path_mkdir);
962 set_to_cap_if_null(ops, path_rmdir);
963 set_to_cap_if_null(ops, path_unlink);
964 set_to_cap_if_null(ops, path_symlink);
965 set_to_cap_if_null(ops, path_link);
966 set_to_cap_if_null(ops, path_rename);
967 set_to_cap_if_null(ops, path_truncate);
Tetsuo Handa89eda062009-10-04 21:49:47 +0900968 set_to_cap_if_null(ops, path_chmod);
969 set_to_cap_if_null(ops, path_chown);
Tetsuo Handa8b8efb42009-10-04 21:49:48 +0900970 set_to_cap_if_null(ops, path_chroot);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900971#endif
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200972 set_to_cap_if_null(ops, file_permission);
973 set_to_cap_if_null(ops, file_alloc_security);
974 set_to_cap_if_null(ops, file_free_security);
975 set_to_cap_if_null(ops, file_ioctl);
976 set_to_cap_if_null(ops, file_mmap);
977 set_to_cap_if_null(ops, file_mprotect);
978 set_to_cap_if_null(ops, file_lock);
979 set_to_cap_if_null(ops, file_fcntl);
980 set_to_cap_if_null(ops, file_set_fowner);
981 set_to_cap_if_null(ops, file_send_sigiotask);
982 set_to_cap_if_null(ops, file_receive);
983 set_to_cap_if_null(ops, dentry_open);
984 set_to_cap_if_null(ops, task_create);
Kees Cook1a2a4d02011-12-21 12:17:03 -0800985 set_to_cap_if_null(ops, task_free);
David Howellsee18d642009-09-02 09:14:21 +0100986 set_to_cap_if_null(ops, cred_alloc_blank);
David Howellsf1752ee2008-11-14 10:39:17 +1100987 set_to_cap_if_null(ops, cred_free);
David Howellsd84f4f92008-11-14 10:39:23 +1100988 set_to_cap_if_null(ops, cred_prepare);
David Howellsee18d642009-09-02 09:14:21 +0100989 set_to_cap_if_null(ops, cred_transfer);
David Howells3a3b7ce2008-11-14 10:39:28 +1100990 set_to_cap_if_null(ops, kernel_act_as);
991 set_to_cap_if_null(ops, kernel_create_files_as);
Eric Paris91884992009-08-13 09:44:57 -0400992 set_to_cap_if_null(ops, kernel_module_request);
David Howellsd84f4f92008-11-14 10:39:23 +1100993 set_to_cap_if_null(ops, task_fix_setuid);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200994 set_to_cap_if_null(ops, task_setpgid);
995 set_to_cap_if_null(ops, task_getpgid);
996 set_to_cap_if_null(ops, task_getsid);
997 set_to_cap_if_null(ops, task_getsecid);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200998 set_to_cap_if_null(ops, task_setnice);
999 set_to_cap_if_null(ops, task_setioprio);
1000 set_to_cap_if_null(ops, task_getioprio);
1001 set_to_cap_if_null(ops, task_setrlimit);
1002 set_to_cap_if_null(ops, task_setscheduler);
1003 set_to_cap_if_null(ops, task_getscheduler);
1004 set_to_cap_if_null(ops, task_movememory);
1005 set_to_cap_if_null(ops, task_wait);
1006 set_to_cap_if_null(ops, task_kill);
1007 set_to_cap_if_null(ops, task_prctl);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001008 set_to_cap_if_null(ops, task_to_inode);
1009 set_to_cap_if_null(ops, ipc_permission);
1010 set_to_cap_if_null(ops, ipc_getsecid);
1011 set_to_cap_if_null(ops, msg_msg_alloc_security);
1012 set_to_cap_if_null(ops, msg_msg_free_security);
1013 set_to_cap_if_null(ops, msg_queue_alloc_security);
1014 set_to_cap_if_null(ops, msg_queue_free_security);
1015 set_to_cap_if_null(ops, msg_queue_associate);
1016 set_to_cap_if_null(ops, msg_queue_msgctl);
1017 set_to_cap_if_null(ops, msg_queue_msgsnd);
1018 set_to_cap_if_null(ops, msg_queue_msgrcv);
1019 set_to_cap_if_null(ops, shm_alloc_security);
1020 set_to_cap_if_null(ops, shm_free_security);
1021 set_to_cap_if_null(ops, shm_associate);
1022 set_to_cap_if_null(ops, shm_shmctl);
1023 set_to_cap_if_null(ops, shm_shmat);
1024 set_to_cap_if_null(ops, sem_alloc_security);
1025 set_to_cap_if_null(ops, sem_free_security);
1026 set_to_cap_if_null(ops, sem_associate);
1027 set_to_cap_if_null(ops, sem_semctl);
1028 set_to_cap_if_null(ops, sem_semop);
1029 set_to_cap_if_null(ops, netlink_send);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001030 set_to_cap_if_null(ops, d_instantiate);
1031 set_to_cap_if_null(ops, getprocattr);
1032 set_to_cap_if_null(ops, setprocattr);
1033 set_to_cap_if_null(ops, secid_to_secctx);
1034 set_to_cap_if_null(ops, secctx_to_secid);
1035 set_to_cap_if_null(ops, release_secctx);
David P. Quigley1ee65e32009-09-03 14:25:57 -04001036 set_to_cap_if_null(ops, inode_notifysecctx);
1037 set_to_cap_if_null(ops, inode_setsecctx);
1038 set_to_cap_if_null(ops, inode_getsecctx);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001039#ifdef CONFIG_SECURITY_NETWORK
1040 set_to_cap_if_null(ops, unix_stream_connect);
1041 set_to_cap_if_null(ops, unix_may_send);
1042 set_to_cap_if_null(ops, socket_create);
1043 set_to_cap_if_null(ops, socket_post_create);
1044 set_to_cap_if_null(ops, socket_bind);
1045 set_to_cap_if_null(ops, socket_connect);
1046 set_to_cap_if_null(ops, socket_listen);
1047 set_to_cap_if_null(ops, socket_accept);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001048 set_to_cap_if_null(ops, socket_sendmsg);
1049 set_to_cap_if_null(ops, socket_recvmsg);
1050 set_to_cap_if_null(ops, socket_getsockname);
1051 set_to_cap_if_null(ops, socket_getpeername);
1052 set_to_cap_if_null(ops, socket_setsockopt);
1053 set_to_cap_if_null(ops, socket_getsockopt);
1054 set_to_cap_if_null(ops, socket_shutdown);
1055 set_to_cap_if_null(ops, socket_sock_rcv_skb);
1056 set_to_cap_if_null(ops, socket_getpeersec_stream);
1057 set_to_cap_if_null(ops, socket_getpeersec_dgram);
1058 set_to_cap_if_null(ops, sk_alloc_security);
1059 set_to_cap_if_null(ops, sk_free_security);
1060 set_to_cap_if_null(ops, sk_clone_security);
1061 set_to_cap_if_null(ops, sk_getsecid);
1062 set_to_cap_if_null(ops, sock_graft);
1063 set_to_cap_if_null(ops, inet_conn_request);
1064 set_to_cap_if_null(ops, inet_csk_clone);
1065 set_to_cap_if_null(ops, inet_conn_established);
Eric Paris2606fd12010-10-13 16:24:41 -04001066 set_to_cap_if_null(ops, secmark_relabel_packet);
1067 set_to_cap_if_null(ops, secmark_refcount_inc);
1068 set_to_cap_if_null(ops, secmark_refcount_dec);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001069 set_to_cap_if_null(ops, req_classify_flow);
Paul Moore2b980db2009-08-28 18:12:43 -04001070 set_to_cap_if_null(ops, tun_dev_create);
1071 set_to_cap_if_null(ops, tun_dev_post_create);
1072 set_to_cap_if_null(ops, tun_dev_attach);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001073#endif /* CONFIG_SECURITY_NETWORK */
1074#ifdef CONFIG_SECURITY_NETWORK_XFRM
1075 set_to_cap_if_null(ops, xfrm_policy_alloc_security);
1076 set_to_cap_if_null(ops, xfrm_policy_clone_security);
1077 set_to_cap_if_null(ops, xfrm_policy_free_security);
1078 set_to_cap_if_null(ops, xfrm_policy_delete_security);
1079 set_to_cap_if_null(ops, xfrm_state_alloc_security);
1080 set_to_cap_if_null(ops, xfrm_state_free_security);
1081 set_to_cap_if_null(ops, xfrm_state_delete_security);
1082 set_to_cap_if_null(ops, xfrm_policy_lookup);
1083 set_to_cap_if_null(ops, xfrm_state_pol_flow_match);
1084 set_to_cap_if_null(ops, xfrm_decode_session);
1085#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1086#ifdef CONFIG_KEYS
1087 set_to_cap_if_null(ops, key_alloc);
1088 set_to_cap_if_null(ops, key_free);
1089 set_to_cap_if_null(ops, key_permission);
1090 set_to_cap_if_null(ops, key_getsecurity);
1091#endif /* CONFIG_KEYS */
1092#ifdef CONFIG_AUDIT
1093 set_to_cap_if_null(ops, audit_rule_init);
1094 set_to_cap_if_null(ops, audit_rule_known);
1095 set_to_cap_if_null(ops, audit_rule_match);
1096 set_to_cap_if_null(ops, audit_rule_free);
1097#endif
1098}