blob: 6783c3e6c88e24fa5e2dacd07fd64ea5b61ac636 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Capabilities Linux Security Module
3 *
Miklos Szeredi5915eb52008-07-03 20:56:05 +02004 * This is the default security module in case no other module is loaded.
5 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07006 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 */
12
Linus Torvalds1da177e2005-04-16 15:20:36 -070013#include <linux/security.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070014
Eric Paris12b30522010-11-15 18:36:29 -050015static int cap_syslog(int type)
16{
17 return 0;
18}
19
Miklos Szeredi5915eb52008-07-03 20:56:05 +020020static int cap_quotactl(int cmds, int type, int id, struct super_block *sb)
21{
22 return 0;
23}
24
25static int cap_quota_on(struct dentry *dentry)
26{
27 return 0;
28}
29
Chihau Chaudce3a3d2010-07-16 12:11:54 -040030static int cap_bprm_check_security(struct linux_binprm *bprm)
Miklos Szeredi5915eb52008-07-03 20:56:05 +020031{
32 return 0;
33}
34
David Howellsa6f76f22008-11-14 10:39:24 +110035static void cap_bprm_committing_creds(struct linux_binprm *bprm)
Miklos Szeredi5915eb52008-07-03 20:56:05 +020036{
37}
38
David Howellsa6f76f22008-11-14 10:39:24 +110039static void cap_bprm_committed_creds(struct linux_binprm *bprm)
Miklos Szeredi5915eb52008-07-03 20:56:05 +020040{
41}
42
Miklos Szeredi5915eb52008-07-03 20:56:05 +020043static int cap_sb_alloc_security(struct super_block *sb)
44{
45 return 0;
46}
47
48static void cap_sb_free_security(struct super_block *sb)
49{
50}
51
52static int cap_sb_copy_data(char *orig, char *copy)
53{
54 return 0;
55}
56
Eric Parisff36fe22011-03-03 16:09:14 -050057static int cap_sb_remount(struct super_block *sb, void *data)
58{
59 return 0;
60}
61
James Morris12204e22008-12-19 10:44:42 +110062static int cap_sb_kern_mount(struct super_block *sb, int flags, void *data)
Miklos Szeredi5915eb52008-07-03 20:56:05 +020063{
64 return 0;
65}
66
67static int cap_sb_show_options(struct seq_file *m, struct super_block *sb)
68{
69 return 0;
70}
71
72static int cap_sb_statfs(struct dentry *dentry)
73{
74 return 0;
75}
76
Al Viro808d4e32012-10-11 11:42:01 -040077static int cap_sb_mount(const char *dev_name, struct path *path,
78 const char *type, unsigned long flags, void *data)
Miklos Szeredi5915eb52008-07-03 20:56:05 +020079{
80 return 0;
81}
82
Miklos Szeredi5915eb52008-07-03 20:56:05 +020083static int cap_sb_umount(struct vfsmount *mnt, int flags)
84{
85 return 0;
86}
87
Miklos Szeredi5915eb52008-07-03 20:56:05 +020088static int cap_sb_pivotroot(struct path *old_path, struct path *new_path)
89{
90 return 0;
91}
92
Miklos Szeredi5915eb52008-07-03 20:56:05 +020093static int cap_sb_set_mnt_opts(struct super_block *sb,
94 struct security_mnt_opts *opts)
95{
96 if (unlikely(opts->num_mnt_opts))
97 return -EOPNOTSUPP;
98 return 0;
99}
100
101static void cap_sb_clone_mnt_opts(const struct super_block *oldsb,
102 struct super_block *newsb)
103{
104}
105
106static int cap_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
107{
108 return 0;
109}
110
111static int cap_inode_alloc_security(struct inode *inode)
112{
113 return 0;
114}
115
116static void cap_inode_free_security(struct inode *inode)
117{
118}
119
120static int cap_inode_init_security(struct inode *inode, struct inode *dir,
Eric Paris2a7dba32011-02-01 11:05:39 -0500121 const struct qstr *qstr, char **name,
122 void **value, size_t *len)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200123{
124 return -EOPNOTSUPP;
125}
126
127static int cap_inode_create(struct inode *inode, struct dentry *dentry,
Al Viro4acdaf22011-07-26 01:42:34 -0400128 umode_t mask)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200129{
130 return 0;
131}
132
133static int cap_inode_link(struct dentry *old_dentry, struct inode *inode,
134 struct dentry *new_dentry)
135{
136 return 0;
137}
138
139static int cap_inode_unlink(struct inode *inode, struct dentry *dentry)
140{
141 return 0;
142}
143
144static int cap_inode_symlink(struct inode *inode, struct dentry *dentry,
145 const char *name)
146{
147 return 0;
148}
149
150static int cap_inode_mkdir(struct inode *inode, struct dentry *dentry,
Al Viro18bb1db2011-07-26 01:41:39 -0400151 umode_t mask)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200152{
153 return 0;
154}
155
156static int cap_inode_rmdir(struct inode *inode, struct dentry *dentry)
157{
158 return 0;
159}
160
161static int cap_inode_mknod(struct inode *inode, struct dentry *dentry,
Al Viro1a67aaf2011-07-26 01:52:52 -0400162 umode_t mode, dev_t dev)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200163{
164 return 0;
165}
166
167static int cap_inode_rename(struct inode *old_inode, struct dentry *old_dentry,
168 struct inode *new_inode, struct dentry *new_dentry)
169{
170 return 0;
171}
172
173static int cap_inode_readlink(struct dentry *dentry)
174{
175 return 0;
176}
177
178static int cap_inode_follow_link(struct dentry *dentry,
179 struct nameidata *nameidata)
180{
181 return 0;
182}
183
Al Viroe74f71e2011-06-20 19:38:15 -0400184static int cap_inode_permission(struct inode *inode, int mask)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200185{
186 return 0;
187}
188
189static int cap_inode_setattr(struct dentry *dentry, struct iattr *iattr)
190{
191 return 0;
192}
193
194static int cap_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
195{
196 return 0;
197}
198
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200199static void cap_inode_post_setxattr(struct dentry *dentry, const char *name,
200 const void *value, size_t size, int flags)
201{
202}
203
204static int cap_inode_getxattr(struct dentry *dentry, const char *name)
205{
206 return 0;
207}
208
209static int cap_inode_listxattr(struct dentry *dentry)
210{
211 return 0;
212}
213
214static int cap_inode_getsecurity(const struct inode *inode, const char *name,
215 void **buffer, bool alloc)
216{
217 return -EOPNOTSUPP;
218}
219
220static int cap_inode_setsecurity(struct inode *inode, const char *name,
221 const void *value, size_t size, int flags)
222{
223 return -EOPNOTSUPP;
224}
225
226static int cap_inode_listsecurity(struct inode *inode, char *buffer,
227 size_t buffer_size)
228{
229 return 0;
230}
231
232static void cap_inode_getsecid(const struct inode *inode, u32 *secid)
233{
234 *secid = 0;
235}
236
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900237#ifdef CONFIG_SECURITY_PATH
Al Viro04fc66e2011-11-21 14:58:38 -0500238static int cap_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900239 unsigned int dev)
240{
241 return 0;
242}
243
Al Viro4572bef2011-11-21 14:56:21 -0500244static int cap_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900245{
246 return 0;
247}
248
249static int cap_path_rmdir(struct path *dir, struct dentry *dentry)
250{
251 return 0;
252}
253
254static int cap_path_unlink(struct path *dir, struct dentry *dentry)
255{
256 return 0;
257}
258
259static int cap_path_symlink(struct path *dir, struct dentry *dentry,
260 const char *old_name)
261{
262 return 0;
263}
264
265static int cap_path_link(struct dentry *old_dentry, struct path *new_dir,
266 struct dentry *new_dentry)
267{
268 return 0;
269}
270
271static int cap_path_rename(struct path *old_path, struct dentry *old_dentry,
272 struct path *new_path, struct dentry *new_dentry)
273{
274 return 0;
275}
276
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +0900277static int cap_path_truncate(struct path *path)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900278{
279 return 0;
280}
Tetsuo Handa89eda062009-10-04 21:49:47 +0900281
Al Virocdcf1162011-12-08 10:51:53 -0500282static int cap_path_chmod(struct path *path, umode_t mode)
Tetsuo Handa89eda062009-10-04 21:49:47 +0900283{
284 return 0;
285}
286
Eric W. Biedermand2b31ca2012-06-01 16:14:19 -0600287static int cap_path_chown(struct path *path, kuid_t uid, kgid_t gid)
Tetsuo Handa89eda062009-10-04 21:49:47 +0900288{
289 return 0;
290}
Tetsuo Handa8b8efb42009-10-04 21:49:48 +0900291
292static int cap_path_chroot(struct path *root)
293{
294 return 0;
295}
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900296#endif
297
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200298static int cap_file_permission(struct file *file, int mask)
299{
300 return 0;
301}
302
303static int cap_file_alloc_security(struct file *file)
304{
305 return 0;
306}
307
308static void cap_file_free_security(struct file *file)
309{
310}
311
312static int cap_file_ioctl(struct file *file, unsigned int command,
313 unsigned long arg)
314{
315 return 0;
316}
317
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200318static int cap_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
319 unsigned long prot)
320{
321 return 0;
322}
323
324static int cap_file_lock(struct file *file, unsigned int cmd)
325{
326 return 0;
327}
328
329static int cap_file_fcntl(struct file *file, unsigned int cmd,
330 unsigned long arg)
331{
332 return 0;
333}
334
335static int cap_file_set_fowner(struct file *file)
336{
337 return 0;
338}
339
340static int cap_file_send_sigiotask(struct task_struct *tsk,
341 struct fown_struct *fown, int sig)
342{
343 return 0;
344}
345
346static int cap_file_receive(struct file *file)
347{
348 return 0;
349}
350
Eric Paris83d49852012-04-04 13:45:40 -0400351static int cap_file_open(struct file *file, const struct cred *cred)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200352{
353 return 0;
354}
355
356static int cap_task_create(unsigned long clone_flags)
357{
358 return 0;
359}
360
Kees Cook1a2a4d02011-12-21 12:17:03 -0800361static void cap_task_free(struct task_struct *task)
362{
363}
364
David Howellsee18d642009-09-02 09:14:21 +0100365static int cap_cred_alloc_blank(struct cred *cred, gfp_t gfp)
366{
367 return 0;
368}
369
David Howellsd84f4f92008-11-14 10:39:23 +1100370static void cap_cred_free(struct cred *cred)
371{
372}
373
374static int cap_cred_prepare(struct cred *new, const struct cred *old, gfp_t gfp)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200375{
376 return 0;
377}
378
David Howellsee18d642009-09-02 09:14:21 +0100379static void cap_cred_transfer(struct cred *new, const struct cred *old)
380{
381}
382
David Howells3a3b7ce2008-11-14 10:39:28 +1100383static int cap_kernel_act_as(struct cred *new, u32 secid)
384{
385 return 0;
386}
387
388static int cap_kernel_create_files_as(struct cred *new, struct inode *inode)
389{
390 return 0;
391}
392
Eric Parisdd8dbf22009-11-03 16:35:32 +1100393static int cap_kernel_module_request(char *kmod_name)
Eric Paris91884992009-08-13 09:44:57 -0400394{
395 return 0;
396}
397
Kees Cook2e72d512012-10-16 07:32:07 +1030398static int cap_kernel_module_from_file(struct file *file)
399{
400 return 0;
401}
402
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200403static int cap_task_setpgid(struct task_struct *p, pid_t pgid)
404{
405 return 0;
406}
407
408static int cap_task_getpgid(struct task_struct *p)
409{
410 return 0;
411}
412
413static int cap_task_getsid(struct task_struct *p)
414{
415 return 0;
416}
417
418static void cap_task_getsecid(struct task_struct *p, u32 *secid)
419{
420 *secid = 0;
421}
422
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200423static int cap_task_getioprio(struct task_struct *p)
424{
425 return 0;
426}
427
Jiri Slaby8fd00b42009-08-26 18:41:16 +0200428static int cap_task_setrlimit(struct task_struct *p, unsigned int resource,
429 struct rlimit *new_rlim)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200430{
431 return 0;
432}
433
434static int cap_task_getscheduler(struct task_struct *p)
435{
436 return 0;
437}
438
439static int cap_task_movememory(struct task_struct *p)
440{
441 return 0;
442}
443
444static int cap_task_wait(struct task_struct *p)
445{
446 return 0;
447}
448
449static int cap_task_kill(struct task_struct *p, struct siginfo *info,
450 int sig, u32 secid)
451{
452 return 0;
453}
454
455static void cap_task_to_inode(struct task_struct *p, struct inode *inode)
456{
457}
458
459static int cap_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
460{
461 return 0;
462}
463
464static void cap_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
465{
466 *secid = 0;
467}
468
469static int cap_msg_msg_alloc_security(struct msg_msg *msg)
470{
471 return 0;
472}
473
474static void cap_msg_msg_free_security(struct msg_msg *msg)
475{
476}
477
478static int cap_msg_queue_alloc_security(struct msg_queue *msq)
479{
480 return 0;
481}
482
483static void cap_msg_queue_free_security(struct msg_queue *msq)
484{
485}
486
487static int cap_msg_queue_associate(struct msg_queue *msq, int msqflg)
488{
489 return 0;
490}
491
492static int cap_msg_queue_msgctl(struct msg_queue *msq, int cmd)
493{
494 return 0;
495}
496
497static int cap_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
498 int msgflg)
499{
500 return 0;
501}
502
503static int cap_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
504 struct task_struct *target, long type, int mode)
505{
506 return 0;
507}
508
509static int cap_shm_alloc_security(struct shmid_kernel *shp)
510{
511 return 0;
512}
513
514static void cap_shm_free_security(struct shmid_kernel *shp)
515{
516}
517
518static int cap_shm_associate(struct shmid_kernel *shp, int shmflg)
519{
520 return 0;
521}
522
523static int cap_shm_shmctl(struct shmid_kernel *shp, int cmd)
524{
525 return 0;
526}
527
528static int cap_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr,
529 int shmflg)
530{
531 return 0;
532}
533
534static int cap_sem_alloc_security(struct sem_array *sma)
535{
536 return 0;
537}
538
539static void cap_sem_free_security(struct sem_array *sma)
540{
541}
542
543static int cap_sem_associate(struct sem_array *sma, int semflg)
544{
545 return 0;
546}
547
548static int cap_sem_semctl(struct sem_array *sma, int cmd)
549{
550 return 0;
551}
552
553static int cap_sem_semop(struct sem_array *sma, struct sembuf *sops,
554 unsigned nsops, int alter)
555{
556 return 0;
557}
558
559#ifdef CONFIG_SECURITY_NETWORK
David S. Miller3610cda2011-01-05 15:38:53 -0800560static int cap_unix_stream_connect(struct sock *sock, struct sock *other,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200561 struct sock *newsk)
562{
563 return 0;
564}
565
566static int cap_unix_may_send(struct socket *sock, struct socket *other)
567{
568 return 0;
569}
570
571static int cap_socket_create(int family, int type, int protocol, int kern)
572{
573 return 0;
574}
575
576static int cap_socket_post_create(struct socket *sock, int family, int type,
577 int protocol, int kern)
578{
579 return 0;
580}
581
582static int cap_socket_bind(struct socket *sock, struct sockaddr *address,
583 int addrlen)
584{
585 return 0;
586}
587
588static int cap_socket_connect(struct socket *sock, struct sockaddr *address,
589 int addrlen)
590{
591 return 0;
592}
593
594static int cap_socket_listen(struct socket *sock, int backlog)
595{
596 return 0;
597}
598
599static int cap_socket_accept(struct socket *sock, struct socket *newsock)
600{
601 return 0;
602}
603
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200604static int cap_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
605{
606 return 0;
607}
608
609static int cap_socket_recvmsg(struct socket *sock, struct msghdr *msg,
610 int size, int flags)
611{
612 return 0;
613}
614
615static int cap_socket_getsockname(struct socket *sock)
616{
617 return 0;
618}
619
620static int cap_socket_getpeername(struct socket *sock)
621{
622 return 0;
623}
624
625static int cap_socket_setsockopt(struct socket *sock, int level, int optname)
626{
627 return 0;
628}
629
630static int cap_socket_getsockopt(struct socket *sock, int level, int optname)
631{
632 return 0;
633}
634
635static int cap_socket_shutdown(struct socket *sock, int how)
636{
637 return 0;
638}
639
640static int cap_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
641{
642 return 0;
643}
644
645static int cap_socket_getpeersec_stream(struct socket *sock,
646 char __user *optval,
647 int __user *optlen, unsigned len)
648{
649 return -ENOPROTOOPT;
650}
651
652static int cap_socket_getpeersec_dgram(struct socket *sock,
653 struct sk_buff *skb, u32 *secid)
654{
655 return -ENOPROTOOPT;
656}
657
658static int cap_sk_alloc_security(struct sock *sk, int family, gfp_t priority)
659{
660 return 0;
661}
662
663static void cap_sk_free_security(struct sock *sk)
664{
665}
666
667static void cap_sk_clone_security(const struct sock *sk, struct sock *newsk)
668{
669}
670
671static void cap_sk_getsecid(struct sock *sk, u32 *secid)
672{
673}
674
675static void cap_sock_graft(struct sock *sk, struct socket *parent)
676{
677}
678
679static int cap_inet_conn_request(struct sock *sk, struct sk_buff *skb,
680 struct request_sock *req)
681{
682 return 0;
683}
684
685static void cap_inet_csk_clone(struct sock *newsk,
686 const struct request_sock *req)
687{
688}
689
690static void cap_inet_conn_established(struct sock *sk, struct sk_buff *skb)
691{
692}
693
Eric Paris2606fd12010-10-13 16:24:41 -0400694static int cap_secmark_relabel_packet(u32 secid)
695{
696 return 0;
697}
Paul Moore2b980db2009-08-28 18:12:43 -0400698
Eric Paris2606fd12010-10-13 16:24:41 -0400699static void cap_secmark_refcount_inc(void)
700{
701}
702
703static void cap_secmark_refcount_dec(void)
704{
705}
Paul Moore2b980db2009-08-28 18:12:43 -0400706
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200707static void cap_req_classify_flow(const struct request_sock *req,
708 struct flowi *fl)
709{
710}
Paul Moore2b980db2009-08-28 18:12:43 -0400711
Paul Moore5dbbaf22013-01-14 07:12:19 +0000712static int cap_tun_dev_alloc_security(void **security)
713{
714 return 0;
715}
716
717static void cap_tun_dev_free_security(void *security)
718{
719}
720
Paul Moore2b980db2009-08-28 18:12:43 -0400721static int cap_tun_dev_create(void)
722{
723 return 0;
724}
725
Paul Moore5dbbaf22013-01-14 07:12:19 +0000726static int cap_tun_dev_attach_queue(void *security)
Paul Moore2b980db2009-08-28 18:12:43 -0400727{
Paul Moore5dbbaf22013-01-14 07:12:19 +0000728 return 0;
Paul Moore2b980db2009-08-28 18:12:43 -0400729}
730
Paul Moore5dbbaf22013-01-14 07:12:19 +0000731static int cap_tun_dev_attach(struct sock *sk, void *security)
732{
733 return 0;
734}
735
736static int cap_tun_dev_open(void *security)
Paul Moore2b980db2009-08-28 18:12:43 -0400737{
738 return 0;
739}
Eric Dumazetca10b9e2013-04-08 17:58:11 +0000740
741static void cap_skb_owned_by(struct sk_buff *skb, struct sock *sk)
742{
743}
744
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200745#endif /* CONFIG_SECURITY_NETWORK */
746
747#ifdef CONFIG_SECURITY_NETWORK_XFRM
748static int cap_xfrm_policy_alloc_security(struct xfrm_sec_ctx **ctxp,
749 struct xfrm_user_sec_ctx *sec_ctx)
750{
751 return 0;
752}
753
754static int cap_xfrm_policy_clone_security(struct xfrm_sec_ctx *old_ctx,
755 struct xfrm_sec_ctx **new_ctxp)
756{
757 return 0;
758}
759
760static void cap_xfrm_policy_free_security(struct xfrm_sec_ctx *ctx)
761{
762}
763
764static int cap_xfrm_policy_delete_security(struct xfrm_sec_ctx *ctx)
765{
766 return 0;
767}
768
769static int cap_xfrm_state_alloc_security(struct xfrm_state *x,
770 struct xfrm_user_sec_ctx *sec_ctx,
771 u32 secid)
772{
773 return 0;
774}
775
776static void cap_xfrm_state_free_security(struct xfrm_state *x)
777{
778}
779
780static int cap_xfrm_state_delete_security(struct xfrm_state *x)
781{
782 return 0;
783}
784
785static int cap_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 sk_sid, u8 dir)
786{
787 return 0;
788}
789
790static int cap_xfrm_state_pol_flow_match(struct xfrm_state *x,
791 struct xfrm_policy *xp,
David S. Millere33f7702011-02-22 18:13:15 -0800792 const struct flowi *fl)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200793{
794 return 1;
795}
796
797static int cap_xfrm_decode_session(struct sk_buff *skb, u32 *fl, int ckall)
798{
799 return 0;
800}
801
802#endif /* CONFIG_SECURITY_NETWORK_XFRM */
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200803static void cap_d_instantiate(struct dentry *dentry, struct inode *inode)
804{
805}
806
807static int cap_getprocattr(struct task_struct *p, char *name, char **value)
808{
809 return -EINVAL;
810}
811
812static int cap_setprocattr(struct task_struct *p, char *name, void *value,
813 size_t size)
814{
815 return -EINVAL;
816}
817
818static int cap_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
819{
820 return -EOPNOTSUPP;
821}
822
823static int cap_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
824{
Eric Paris2606fd12010-10-13 16:24:41 -0400825 *secid = 0;
826 return 0;
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200827}
828
829static void cap_release_secctx(char *secdata, u32 seclen)
830{
831}
832
David P. Quigley1ee65e32009-09-03 14:25:57 -0400833static int cap_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
834{
835 return 0;
836}
837
838static int cap_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
839{
840 return 0;
841}
842
843static int cap_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
844{
845 return 0;
846}
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200847#ifdef CONFIG_KEYS
David Howellsd84f4f92008-11-14 10:39:23 +1100848static int cap_key_alloc(struct key *key, const struct cred *cred,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200849 unsigned long flags)
850{
851 return 0;
852}
853
854static void cap_key_free(struct key *key)
855{
856}
857
David Howellsd84f4f92008-11-14 10:39:23 +1100858static int cap_key_permission(key_ref_t key_ref, const struct cred *cred,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200859 key_perm_t perm)
860{
861 return 0;
862}
863
864static int cap_key_getsecurity(struct key *key, char **_buffer)
865{
866 *_buffer = NULL;
867 return 0;
868}
869
870#endif /* CONFIG_KEYS */
871
872#ifdef CONFIG_AUDIT
873static int cap_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
874{
875 return 0;
876}
877
878static int cap_audit_rule_known(struct audit_krule *krule)
879{
880 return 0;
881}
882
883static int cap_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
884 struct audit_context *actx)
885{
886 return 0;
887}
888
889static void cap_audit_rule_free(void *lsmrule)
890{
891}
892#endif /* CONFIG_AUDIT */
893
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200894#define set_to_cap_if_null(ops, function) \
895 do { \
896 if (!ops->function) { \
897 ops->function = cap_##function; \
898 pr_debug("Had to override the " #function \
899 " security operation with the default.\n");\
900 } \
901 } while (0)
902
Tetsuo Handac80901f2010-05-14 12:01:26 +0900903void __init security_fixup_ops(struct security_operations *ops)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200904{
Ingo Molnar9e488582009-05-07 19:26:19 +1000905 set_to_cap_if_null(ops, ptrace_access_check);
David Howells5cd9c582008-08-14 11:37:28 +0100906 set_to_cap_if_null(ops, ptrace_traceme);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200907 set_to_cap_if_null(ops, capget);
David Howellsd84f4f92008-11-14 10:39:23 +1100908 set_to_cap_if_null(ops, capset);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200909 set_to_cap_if_null(ops, capable);
910 set_to_cap_if_null(ops, quotactl);
911 set_to_cap_if_null(ops, quota_on);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200912 set_to_cap_if_null(ops, syslog);
913 set_to_cap_if_null(ops, settime);
914 set_to_cap_if_null(ops, vm_enough_memory);
David Howellsa6f76f22008-11-14 10:39:24 +1100915 set_to_cap_if_null(ops, bprm_set_creds);
916 set_to_cap_if_null(ops, bprm_committing_creds);
917 set_to_cap_if_null(ops, bprm_committed_creds);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200918 set_to_cap_if_null(ops, bprm_check_security);
919 set_to_cap_if_null(ops, bprm_secureexec);
920 set_to_cap_if_null(ops, sb_alloc_security);
921 set_to_cap_if_null(ops, sb_free_security);
922 set_to_cap_if_null(ops, sb_copy_data);
Eric Parisff36fe22011-03-03 16:09:14 -0500923 set_to_cap_if_null(ops, sb_remount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200924 set_to_cap_if_null(ops, sb_kern_mount);
925 set_to_cap_if_null(ops, sb_show_options);
926 set_to_cap_if_null(ops, sb_statfs);
927 set_to_cap_if_null(ops, sb_mount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200928 set_to_cap_if_null(ops, sb_umount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200929 set_to_cap_if_null(ops, sb_pivotroot);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200930 set_to_cap_if_null(ops, sb_set_mnt_opts);
931 set_to_cap_if_null(ops, sb_clone_mnt_opts);
932 set_to_cap_if_null(ops, sb_parse_opts_str);
933 set_to_cap_if_null(ops, inode_alloc_security);
934 set_to_cap_if_null(ops, inode_free_security);
935 set_to_cap_if_null(ops, inode_init_security);
936 set_to_cap_if_null(ops, inode_create);
937 set_to_cap_if_null(ops, inode_link);
938 set_to_cap_if_null(ops, inode_unlink);
939 set_to_cap_if_null(ops, inode_symlink);
940 set_to_cap_if_null(ops, inode_mkdir);
941 set_to_cap_if_null(ops, inode_rmdir);
942 set_to_cap_if_null(ops, inode_mknod);
943 set_to_cap_if_null(ops, inode_rename);
944 set_to_cap_if_null(ops, inode_readlink);
945 set_to_cap_if_null(ops, inode_follow_link);
946 set_to_cap_if_null(ops, inode_permission);
947 set_to_cap_if_null(ops, inode_setattr);
948 set_to_cap_if_null(ops, inode_getattr);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200949 set_to_cap_if_null(ops, inode_setxattr);
950 set_to_cap_if_null(ops, inode_post_setxattr);
951 set_to_cap_if_null(ops, inode_getxattr);
952 set_to_cap_if_null(ops, inode_listxattr);
953 set_to_cap_if_null(ops, inode_removexattr);
954 set_to_cap_if_null(ops, inode_need_killpriv);
955 set_to_cap_if_null(ops, inode_killpriv);
956 set_to_cap_if_null(ops, inode_getsecurity);
957 set_to_cap_if_null(ops, inode_setsecurity);
958 set_to_cap_if_null(ops, inode_listsecurity);
959 set_to_cap_if_null(ops, inode_getsecid);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900960#ifdef CONFIG_SECURITY_PATH
961 set_to_cap_if_null(ops, path_mknod);
962 set_to_cap_if_null(ops, path_mkdir);
963 set_to_cap_if_null(ops, path_rmdir);
964 set_to_cap_if_null(ops, path_unlink);
965 set_to_cap_if_null(ops, path_symlink);
966 set_to_cap_if_null(ops, path_link);
967 set_to_cap_if_null(ops, path_rename);
968 set_to_cap_if_null(ops, path_truncate);
Tetsuo Handa89eda062009-10-04 21:49:47 +0900969 set_to_cap_if_null(ops, path_chmod);
970 set_to_cap_if_null(ops, path_chown);
Tetsuo Handa8b8efb42009-10-04 21:49:48 +0900971 set_to_cap_if_null(ops, path_chroot);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900972#endif
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200973 set_to_cap_if_null(ops, file_permission);
974 set_to_cap_if_null(ops, file_alloc_security);
975 set_to_cap_if_null(ops, file_free_security);
976 set_to_cap_if_null(ops, file_ioctl);
Al Viroe5467852012-05-30 13:30:51 -0400977 set_to_cap_if_null(ops, mmap_addr);
978 set_to_cap_if_null(ops, mmap_file);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200979 set_to_cap_if_null(ops, file_mprotect);
980 set_to_cap_if_null(ops, file_lock);
981 set_to_cap_if_null(ops, file_fcntl);
982 set_to_cap_if_null(ops, file_set_fowner);
983 set_to_cap_if_null(ops, file_send_sigiotask);
984 set_to_cap_if_null(ops, file_receive);
Eric Paris83d49852012-04-04 13:45:40 -0400985 set_to_cap_if_null(ops, file_open);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200986 set_to_cap_if_null(ops, task_create);
Kees Cook1a2a4d02011-12-21 12:17:03 -0800987 set_to_cap_if_null(ops, task_free);
David Howellsee18d642009-09-02 09:14:21 +0100988 set_to_cap_if_null(ops, cred_alloc_blank);
David Howellsf1752ee2008-11-14 10:39:17 +1100989 set_to_cap_if_null(ops, cred_free);
David Howellsd84f4f92008-11-14 10:39:23 +1100990 set_to_cap_if_null(ops, cred_prepare);
David Howellsee18d642009-09-02 09:14:21 +0100991 set_to_cap_if_null(ops, cred_transfer);
David Howells3a3b7ce2008-11-14 10:39:28 +1100992 set_to_cap_if_null(ops, kernel_act_as);
993 set_to_cap_if_null(ops, kernel_create_files_as);
Eric Paris91884992009-08-13 09:44:57 -0400994 set_to_cap_if_null(ops, kernel_module_request);
Kees Cook2e72d512012-10-16 07:32:07 +1030995 set_to_cap_if_null(ops, kernel_module_from_file);
David Howellsd84f4f92008-11-14 10:39:23 +1100996 set_to_cap_if_null(ops, task_fix_setuid);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200997 set_to_cap_if_null(ops, task_setpgid);
998 set_to_cap_if_null(ops, task_getpgid);
999 set_to_cap_if_null(ops, task_getsid);
1000 set_to_cap_if_null(ops, task_getsecid);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001001 set_to_cap_if_null(ops, task_setnice);
1002 set_to_cap_if_null(ops, task_setioprio);
1003 set_to_cap_if_null(ops, task_getioprio);
1004 set_to_cap_if_null(ops, task_setrlimit);
1005 set_to_cap_if_null(ops, task_setscheduler);
1006 set_to_cap_if_null(ops, task_getscheduler);
1007 set_to_cap_if_null(ops, task_movememory);
1008 set_to_cap_if_null(ops, task_wait);
1009 set_to_cap_if_null(ops, task_kill);
1010 set_to_cap_if_null(ops, task_prctl);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001011 set_to_cap_if_null(ops, task_to_inode);
1012 set_to_cap_if_null(ops, ipc_permission);
1013 set_to_cap_if_null(ops, ipc_getsecid);
1014 set_to_cap_if_null(ops, msg_msg_alloc_security);
1015 set_to_cap_if_null(ops, msg_msg_free_security);
1016 set_to_cap_if_null(ops, msg_queue_alloc_security);
1017 set_to_cap_if_null(ops, msg_queue_free_security);
1018 set_to_cap_if_null(ops, msg_queue_associate);
1019 set_to_cap_if_null(ops, msg_queue_msgctl);
1020 set_to_cap_if_null(ops, msg_queue_msgsnd);
1021 set_to_cap_if_null(ops, msg_queue_msgrcv);
1022 set_to_cap_if_null(ops, shm_alloc_security);
1023 set_to_cap_if_null(ops, shm_free_security);
1024 set_to_cap_if_null(ops, shm_associate);
1025 set_to_cap_if_null(ops, shm_shmctl);
1026 set_to_cap_if_null(ops, shm_shmat);
1027 set_to_cap_if_null(ops, sem_alloc_security);
1028 set_to_cap_if_null(ops, sem_free_security);
1029 set_to_cap_if_null(ops, sem_associate);
1030 set_to_cap_if_null(ops, sem_semctl);
1031 set_to_cap_if_null(ops, sem_semop);
1032 set_to_cap_if_null(ops, netlink_send);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001033 set_to_cap_if_null(ops, d_instantiate);
1034 set_to_cap_if_null(ops, getprocattr);
1035 set_to_cap_if_null(ops, setprocattr);
1036 set_to_cap_if_null(ops, secid_to_secctx);
1037 set_to_cap_if_null(ops, secctx_to_secid);
1038 set_to_cap_if_null(ops, release_secctx);
David P. Quigley1ee65e32009-09-03 14:25:57 -04001039 set_to_cap_if_null(ops, inode_notifysecctx);
1040 set_to_cap_if_null(ops, inode_setsecctx);
1041 set_to_cap_if_null(ops, inode_getsecctx);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001042#ifdef CONFIG_SECURITY_NETWORK
1043 set_to_cap_if_null(ops, unix_stream_connect);
1044 set_to_cap_if_null(ops, unix_may_send);
1045 set_to_cap_if_null(ops, socket_create);
1046 set_to_cap_if_null(ops, socket_post_create);
1047 set_to_cap_if_null(ops, socket_bind);
1048 set_to_cap_if_null(ops, socket_connect);
1049 set_to_cap_if_null(ops, socket_listen);
1050 set_to_cap_if_null(ops, socket_accept);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001051 set_to_cap_if_null(ops, socket_sendmsg);
1052 set_to_cap_if_null(ops, socket_recvmsg);
1053 set_to_cap_if_null(ops, socket_getsockname);
1054 set_to_cap_if_null(ops, socket_getpeername);
1055 set_to_cap_if_null(ops, socket_setsockopt);
1056 set_to_cap_if_null(ops, socket_getsockopt);
1057 set_to_cap_if_null(ops, socket_shutdown);
1058 set_to_cap_if_null(ops, socket_sock_rcv_skb);
1059 set_to_cap_if_null(ops, socket_getpeersec_stream);
1060 set_to_cap_if_null(ops, socket_getpeersec_dgram);
1061 set_to_cap_if_null(ops, sk_alloc_security);
1062 set_to_cap_if_null(ops, sk_free_security);
1063 set_to_cap_if_null(ops, sk_clone_security);
1064 set_to_cap_if_null(ops, sk_getsecid);
1065 set_to_cap_if_null(ops, sock_graft);
1066 set_to_cap_if_null(ops, inet_conn_request);
1067 set_to_cap_if_null(ops, inet_csk_clone);
1068 set_to_cap_if_null(ops, inet_conn_established);
Eric Paris2606fd12010-10-13 16:24:41 -04001069 set_to_cap_if_null(ops, secmark_relabel_packet);
1070 set_to_cap_if_null(ops, secmark_refcount_inc);
1071 set_to_cap_if_null(ops, secmark_refcount_dec);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001072 set_to_cap_if_null(ops, req_classify_flow);
Paul Moore5dbbaf22013-01-14 07:12:19 +00001073 set_to_cap_if_null(ops, tun_dev_alloc_security);
1074 set_to_cap_if_null(ops, tun_dev_free_security);
Paul Moore2b980db2009-08-28 18:12:43 -04001075 set_to_cap_if_null(ops, tun_dev_create);
Paul Moore5dbbaf22013-01-14 07:12:19 +00001076 set_to_cap_if_null(ops, tun_dev_open);
1077 set_to_cap_if_null(ops, tun_dev_attach_queue);
Paul Moore2b980db2009-08-28 18:12:43 -04001078 set_to_cap_if_null(ops, tun_dev_attach);
Eric Dumazetca10b9e2013-04-08 17:58:11 +00001079 set_to_cap_if_null(ops, skb_owned_by);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001080#endif /* CONFIG_SECURITY_NETWORK */
1081#ifdef CONFIG_SECURITY_NETWORK_XFRM
1082 set_to_cap_if_null(ops, xfrm_policy_alloc_security);
1083 set_to_cap_if_null(ops, xfrm_policy_clone_security);
1084 set_to_cap_if_null(ops, xfrm_policy_free_security);
1085 set_to_cap_if_null(ops, xfrm_policy_delete_security);
1086 set_to_cap_if_null(ops, xfrm_state_alloc_security);
1087 set_to_cap_if_null(ops, xfrm_state_free_security);
1088 set_to_cap_if_null(ops, xfrm_state_delete_security);
1089 set_to_cap_if_null(ops, xfrm_policy_lookup);
1090 set_to_cap_if_null(ops, xfrm_state_pol_flow_match);
1091 set_to_cap_if_null(ops, xfrm_decode_session);
1092#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1093#ifdef CONFIG_KEYS
1094 set_to_cap_if_null(ops, key_alloc);
1095 set_to_cap_if_null(ops, key_free);
1096 set_to_cap_if_null(ops, key_permission);
1097 set_to_cap_if_null(ops, key_getsecurity);
1098#endif /* CONFIG_KEYS */
1099#ifdef CONFIG_AUDIT
1100 set_to_cap_if_null(ops, audit_rule_init);
1101 set_to_cap_if_null(ops, audit_rule_known);
1102 set_to_cap_if_null(ops, audit_rule_match);
1103 set_to_cap_if_null(ops, audit_rule_free);
1104#endif
1105}