blob: 1728d4e375db509c4e192e0e69fb1a0ee020bf49 [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
Jeff Layton094f7b62013-04-01 08:14:24 -0400101static int cap_sb_clone_mnt_opts(const struct super_block *oldsb,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200102 struct super_block *newsb)
103{
Jeff Layton094f7b62013-04-01 08:14:24 -0400104 return 0;
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200105}
106
107static int cap_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
108{
109 return 0;
110}
111
112static int cap_inode_alloc_security(struct inode *inode)
113{
114 return 0;
115}
116
117static void cap_inode_free_security(struct inode *inode)
118{
119}
120
121static int cap_inode_init_security(struct inode *inode, struct inode *dir,
Eric Paris2a7dba32011-02-01 11:05:39 -0500122 const struct qstr *qstr, char **name,
123 void **value, size_t *len)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200124{
125 return -EOPNOTSUPP;
126}
127
128static int cap_inode_create(struct inode *inode, struct dentry *dentry,
Al Viro4acdaf22011-07-26 01:42:34 -0400129 umode_t mask)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200130{
131 return 0;
132}
133
134static int cap_inode_link(struct dentry *old_dentry, struct inode *inode,
135 struct dentry *new_dentry)
136{
137 return 0;
138}
139
140static int cap_inode_unlink(struct inode *inode, struct dentry *dentry)
141{
142 return 0;
143}
144
145static int cap_inode_symlink(struct inode *inode, struct dentry *dentry,
146 const char *name)
147{
148 return 0;
149}
150
151static int cap_inode_mkdir(struct inode *inode, struct dentry *dentry,
Al Viro18bb1db2011-07-26 01:41:39 -0400152 umode_t mask)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200153{
154 return 0;
155}
156
157static int cap_inode_rmdir(struct inode *inode, struct dentry *dentry)
158{
159 return 0;
160}
161
162static int cap_inode_mknod(struct inode *inode, struct dentry *dentry,
Al Viro1a67aaf2011-07-26 01:52:52 -0400163 umode_t mode, dev_t dev)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200164{
165 return 0;
166}
167
168static int cap_inode_rename(struct inode *old_inode, struct dentry *old_dentry,
169 struct inode *new_inode, struct dentry *new_dentry)
170{
171 return 0;
172}
173
174static int cap_inode_readlink(struct dentry *dentry)
175{
176 return 0;
177}
178
179static int cap_inode_follow_link(struct dentry *dentry,
180 struct nameidata *nameidata)
181{
182 return 0;
183}
184
Al Viroe74f71e2011-06-20 19:38:15 -0400185static int cap_inode_permission(struct inode *inode, int mask)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200186{
187 return 0;
188}
189
190static int cap_inode_setattr(struct dentry *dentry, struct iattr *iattr)
191{
192 return 0;
193}
194
195static int cap_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
196{
197 return 0;
198}
199
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200200static void cap_inode_post_setxattr(struct dentry *dentry, const char *name,
201 const void *value, size_t size, int flags)
202{
203}
204
205static int cap_inode_getxattr(struct dentry *dentry, const char *name)
206{
207 return 0;
208}
209
210static int cap_inode_listxattr(struct dentry *dentry)
211{
212 return 0;
213}
214
215static int cap_inode_getsecurity(const struct inode *inode, const char *name,
216 void **buffer, bool alloc)
217{
218 return -EOPNOTSUPP;
219}
220
221static int cap_inode_setsecurity(struct inode *inode, const char *name,
222 const void *value, size_t size, int flags)
223{
224 return -EOPNOTSUPP;
225}
226
227static int cap_inode_listsecurity(struct inode *inode, char *buffer,
228 size_t buffer_size)
229{
230 return 0;
231}
232
233static void cap_inode_getsecid(const struct inode *inode, u32 *secid)
234{
235 *secid = 0;
236}
237
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900238#ifdef CONFIG_SECURITY_PATH
Al Viro04fc66e2011-11-21 14:58:38 -0500239static int cap_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900240 unsigned int dev)
241{
242 return 0;
243}
244
Al Viro4572bef2011-11-21 14:56:21 -0500245static int cap_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900246{
247 return 0;
248}
249
250static int cap_path_rmdir(struct path *dir, struct dentry *dentry)
251{
252 return 0;
253}
254
255static int cap_path_unlink(struct path *dir, struct dentry *dentry)
256{
257 return 0;
258}
259
260static int cap_path_symlink(struct path *dir, struct dentry *dentry,
261 const char *old_name)
262{
263 return 0;
264}
265
266static int cap_path_link(struct dentry *old_dentry, struct path *new_dir,
267 struct dentry *new_dentry)
268{
269 return 0;
270}
271
272static int cap_path_rename(struct path *old_path, struct dentry *old_dentry,
273 struct path *new_path, struct dentry *new_dentry)
274{
275 return 0;
276}
277
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +0900278static int cap_path_truncate(struct path *path)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900279{
280 return 0;
281}
Tetsuo Handa89eda062009-10-04 21:49:47 +0900282
Al Virocdcf1162011-12-08 10:51:53 -0500283static int cap_path_chmod(struct path *path, umode_t mode)
Tetsuo Handa89eda062009-10-04 21:49:47 +0900284{
285 return 0;
286}
287
Eric W. Biedermand2b31ca2012-06-01 16:14:19 -0600288static int cap_path_chown(struct path *path, kuid_t uid, kgid_t gid)
Tetsuo Handa89eda062009-10-04 21:49:47 +0900289{
290 return 0;
291}
Tetsuo Handa8b8efb42009-10-04 21:49:48 +0900292
293static int cap_path_chroot(struct path *root)
294{
295 return 0;
296}
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900297#endif
298
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200299static int cap_file_permission(struct file *file, int mask)
300{
301 return 0;
302}
303
304static int cap_file_alloc_security(struct file *file)
305{
306 return 0;
307}
308
309static void cap_file_free_security(struct file *file)
310{
311}
312
313static int cap_file_ioctl(struct file *file, unsigned int command,
314 unsigned long arg)
315{
316 return 0;
317}
318
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200319static int cap_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
320 unsigned long prot)
321{
322 return 0;
323}
324
325static int cap_file_lock(struct file *file, unsigned int cmd)
326{
327 return 0;
328}
329
330static int cap_file_fcntl(struct file *file, unsigned int cmd,
331 unsigned long arg)
332{
333 return 0;
334}
335
336static int cap_file_set_fowner(struct file *file)
337{
338 return 0;
339}
340
341static int cap_file_send_sigiotask(struct task_struct *tsk,
342 struct fown_struct *fown, int sig)
343{
344 return 0;
345}
346
347static int cap_file_receive(struct file *file)
348{
349 return 0;
350}
351
Eric Paris83d49852012-04-04 13:45:40 -0400352static int cap_file_open(struct file *file, const struct cred *cred)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200353{
354 return 0;
355}
356
357static int cap_task_create(unsigned long clone_flags)
358{
359 return 0;
360}
361
Kees Cook1a2a4d02011-12-21 12:17:03 -0800362static void cap_task_free(struct task_struct *task)
363{
364}
365
David Howellsee18d642009-09-02 09:14:21 +0100366static int cap_cred_alloc_blank(struct cred *cred, gfp_t gfp)
367{
368 return 0;
369}
370
David Howellsd84f4f92008-11-14 10:39:23 +1100371static void cap_cred_free(struct cred *cred)
372{
373}
374
375static int cap_cred_prepare(struct cred *new, const struct cred *old, gfp_t gfp)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200376{
377 return 0;
378}
379
David Howellsee18d642009-09-02 09:14:21 +0100380static void cap_cred_transfer(struct cred *new, const struct cred *old)
381{
382}
383
David Howells3a3b7ce2008-11-14 10:39:28 +1100384static int cap_kernel_act_as(struct cred *new, u32 secid)
385{
386 return 0;
387}
388
389static int cap_kernel_create_files_as(struct cred *new, struct inode *inode)
390{
391 return 0;
392}
393
Eric Parisdd8dbf22009-11-03 16:35:32 +1100394static int cap_kernel_module_request(char *kmod_name)
Eric Paris91884992009-08-13 09:44:57 -0400395{
396 return 0;
397}
398
Kees Cook2e72d512012-10-16 07:32:07 +1030399static int cap_kernel_module_from_file(struct file *file)
400{
401 return 0;
402}
403
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200404static int cap_task_setpgid(struct task_struct *p, pid_t pgid)
405{
406 return 0;
407}
408
409static int cap_task_getpgid(struct task_struct *p)
410{
411 return 0;
412}
413
414static int cap_task_getsid(struct task_struct *p)
415{
416 return 0;
417}
418
419static void cap_task_getsecid(struct task_struct *p, u32 *secid)
420{
421 *secid = 0;
422}
423
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200424static int cap_task_getioprio(struct task_struct *p)
425{
426 return 0;
427}
428
Jiri Slaby8fd00b42009-08-26 18:41:16 +0200429static int cap_task_setrlimit(struct task_struct *p, unsigned int resource,
430 struct rlimit *new_rlim)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200431{
432 return 0;
433}
434
435static int cap_task_getscheduler(struct task_struct *p)
436{
437 return 0;
438}
439
440static int cap_task_movememory(struct task_struct *p)
441{
442 return 0;
443}
444
445static int cap_task_wait(struct task_struct *p)
446{
447 return 0;
448}
449
450static int cap_task_kill(struct task_struct *p, struct siginfo *info,
451 int sig, u32 secid)
452{
453 return 0;
454}
455
456static void cap_task_to_inode(struct task_struct *p, struct inode *inode)
457{
458}
459
460static int cap_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
461{
462 return 0;
463}
464
465static void cap_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
466{
467 *secid = 0;
468}
469
470static int cap_msg_msg_alloc_security(struct msg_msg *msg)
471{
472 return 0;
473}
474
475static void cap_msg_msg_free_security(struct msg_msg *msg)
476{
477}
478
479static int cap_msg_queue_alloc_security(struct msg_queue *msq)
480{
481 return 0;
482}
483
484static void cap_msg_queue_free_security(struct msg_queue *msq)
485{
486}
487
488static int cap_msg_queue_associate(struct msg_queue *msq, int msqflg)
489{
490 return 0;
491}
492
493static int cap_msg_queue_msgctl(struct msg_queue *msq, int cmd)
494{
495 return 0;
496}
497
498static int cap_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
499 int msgflg)
500{
501 return 0;
502}
503
504static int cap_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
505 struct task_struct *target, long type, int mode)
506{
507 return 0;
508}
509
510static int cap_shm_alloc_security(struct shmid_kernel *shp)
511{
512 return 0;
513}
514
515static void cap_shm_free_security(struct shmid_kernel *shp)
516{
517}
518
519static int cap_shm_associate(struct shmid_kernel *shp, int shmflg)
520{
521 return 0;
522}
523
524static int cap_shm_shmctl(struct shmid_kernel *shp, int cmd)
525{
526 return 0;
527}
528
529static int cap_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr,
530 int shmflg)
531{
532 return 0;
533}
534
535static int cap_sem_alloc_security(struct sem_array *sma)
536{
537 return 0;
538}
539
540static void cap_sem_free_security(struct sem_array *sma)
541{
542}
543
544static int cap_sem_associate(struct sem_array *sma, int semflg)
545{
546 return 0;
547}
548
549static int cap_sem_semctl(struct sem_array *sma, int cmd)
550{
551 return 0;
552}
553
554static int cap_sem_semop(struct sem_array *sma, struct sembuf *sops,
555 unsigned nsops, int alter)
556{
557 return 0;
558}
559
560#ifdef CONFIG_SECURITY_NETWORK
David S. Miller3610cda2011-01-05 15:38:53 -0800561static int cap_unix_stream_connect(struct sock *sock, struct sock *other,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200562 struct sock *newsk)
563{
564 return 0;
565}
566
567static int cap_unix_may_send(struct socket *sock, struct socket *other)
568{
569 return 0;
570}
571
572static int cap_socket_create(int family, int type, int protocol, int kern)
573{
574 return 0;
575}
576
577static int cap_socket_post_create(struct socket *sock, int family, int type,
578 int protocol, int kern)
579{
580 return 0;
581}
582
583static int cap_socket_bind(struct socket *sock, struct sockaddr *address,
584 int addrlen)
585{
586 return 0;
587}
588
589static int cap_socket_connect(struct socket *sock, struct sockaddr *address,
590 int addrlen)
591{
592 return 0;
593}
594
595static int cap_socket_listen(struct socket *sock, int backlog)
596{
597 return 0;
598}
599
600static int cap_socket_accept(struct socket *sock, struct socket *newsock)
601{
602 return 0;
603}
604
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200605static int cap_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
606{
607 return 0;
608}
609
610static int cap_socket_recvmsg(struct socket *sock, struct msghdr *msg,
611 int size, int flags)
612{
613 return 0;
614}
615
616static int cap_socket_getsockname(struct socket *sock)
617{
618 return 0;
619}
620
621static int cap_socket_getpeername(struct socket *sock)
622{
623 return 0;
624}
625
626static int cap_socket_setsockopt(struct socket *sock, int level, int optname)
627{
628 return 0;
629}
630
631static int cap_socket_getsockopt(struct socket *sock, int level, int optname)
632{
633 return 0;
634}
635
636static int cap_socket_shutdown(struct socket *sock, int how)
637{
638 return 0;
639}
640
641static int cap_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
642{
643 return 0;
644}
645
646static int cap_socket_getpeersec_stream(struct socket *sock,
647 char __user *optval,
648 int __user *optlen, unsigned len)
649{
650 return -ENOPROTOOPT;
651}
652
653static int cap_socket_getpeersec_dgram(struct socket *sock,
654 struct sk_buff *skb, u32 *secid)
655{
656 return -ENOPROTOOPT;
657}
658
659static int cap_sk_alloc_security(struct sock *sk, int family, gfp_t priority)
660{
661 return 0;
662}
663
664static void cap_sk_free_security(struct sock *sk)
665{
666}
667
668static void cap_sk_clone_security(const struct sock *sk, struct sock *newsk)
669{
670}
671
672static void cap_sk_getsecid(struct sock *sk, u32 *secid)
673{
674}
675
676static void cap_sock_graft(struct sock *sk, struct socket *parent)
677{
678}
679
680static int cap_inet_conn_request(struct sock *sk, struct sk_buff *skb,
681 struct request_sock *req)
682{
683 return 0;
684}
685
686static void cap_inet_csk_clone(struct sock *newsk,
687 const struct request_sock *req)
688{
689}
690
691static void cap_inet_conn_established(struct sock *sk, struct sk_buff *skb)
692{
693}
694
Eric Paris2606fd12010-10-13 16:24:41 -0400695static int cap_secmark_relabel_packet(u32 secid)
696{
697 return 0;
698}
Paul Moore2b980db2009-08-28 18:12:43 -0400699
Eric Paris2606fd12010-10-13 16:24:41 -0400700static void cap_secmark_refcount_inc(void)
701{
702}
703
704static void cap_secmark_refcount_dec(void)
705{
706}
Paul Moore2b980db2009-08-28 18:12:43 -0400707
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200708static void cap_req_classify_flow(const struct request_sock *req,
709 struct flowi *fl)
710{
711}
Paul Moore2b980db2009-08-28 18:12:43 -0400712
Paul Moore5dbbaf22013-01-14 07:12:19 +0000713static int cap_tun_dev_alloc_security(void **security)
714{
715 return 0;
716}
717
718static void cap_tun_dev_free_security(void *security)
719{
720}
721
Paul Moore2b980db2009-08-28 18:12:43 -0400722static int cap_tun_dev_create(void)
723{
724 return 0;
725}
726
Paul Moore5dbbaf22013-01-14 07:12:19 +0000727static int cap_tun_dev_attach_queue(void *security)
Paul Moore2b980db2009-08-28 18:12:43 -0400728{
Paul Moore5dbbaf22013-01-14 07:12:19 +0000729 return 0;
Paul Moore2b980db2009-08-28 18:12:43 -0400730}
731
Paul Moore5dbbaf22013-01-14 07:12:19 +0000732static int cap_tun_dev_attach(struct sock *sk, void *security)
733{
734 return 0;
735}
736
737static int cap_tun_dev_open(void *security)
Paul Moore2b980db2009-08-28 18:12:43 -0400738{
739 return 0;
740}
Eric Dumazetca10b9e2013-04-08 17:58:11 +0000741
742static void cap_skb_owned_by(struct sk_buff *skb, struct sock *sk)
743{
744}
745
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200746#endif /* CONFIG_SECURITY_NETWORK */
747
748#ifdef CONFIG_SECURITY_NETWORK_XFRM
749static int cap_xfrm_policy_alloc_security(struct xfrm_sec_ctx **ctxp,
750 struct xfrm_user_sec_ctx *sec_ctx)
751{
752 return 0;
753}
754
755static int cap_xfrm_policy_clone_security(struct xfrm_sec_ctx *old_ctx,
756 struct xfrm_sec_ctx **new_ctxp)
757{
758 return 0;
759}
760
761static void cap_xfrm_policy_free_security(struct xfrm_sec_ctx *ctx)
762{
763}
764
765static int cap_xfrm_policy_delete_security(struct xfrm_sec_ctx *ctx)
766{
767 return 0;
768}
769
770static int cap_xfrm_state_alloc_security(struct xfrm_state *x,
771 struct xfrm_user_sec_ctx *sec_ctx,
772 u32 secid)
773{
774 return 0;
775}
776
777static void cap_xfrm_state_free_security(struct xfrm_state *x)
778{
779}
780
781static int cap_xfrm_state_delete_security(struct xfrm_state *x)
782{
783 return 0;
784}
785
786static int cap_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 sk_sid, u8 dir)
787{
788 return 0;
789}
790
791static int cap_xfrm_state_pol_flow_match(struct xfrm_state *x,
792 struct xfrm_policy *xp,
David S. Millere33f7702011-02-22 18:13:15 -0800793 const struct flowi *fl)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200794{
795 return 1;
796}
797
798static int cap_xfrm_decode_session(struct sk_buff *skb, u32 *fl, int ckall)
799{
800 return 0;
801}
802
803#endif /* CONFIG_SECURITY_NETWORK_XFRM */
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200804static void cap_d_instantiate(struct dentry *dentry, struct inode *inode)
805{
806}
807
808static int cap_getprocattr(struct task_struct *p, char *name, char **value)
809{
810 return -EINVAL;
811}
812
813static int cap_setprocattr(struct task_struct *p, char *name, void *value,
814 size_t size)
815{
816 return -EINVAL;
817}
818
819static int cap_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
820{
821 return -EOPNOTSUPP;
822}
823
824static int cap_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
825{
Eric Paris2606fd12010-10-13 16:24:41 -0400826 *secid = 0;
827 return 0;
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200828}
829
830static void cap_release_secctx(char *secdata, u32 seclen)
831{
832}
833
David P. Quigley1ee65e32009-09-03 14:25:57 -0400834static int cap_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
835{
836 return 0;
837}
838
839static int cap_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
840{
841 return 0;
842}
843
844static int cap_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
845{
846 return 0;
847}
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200848#ifdef CONFIG_KEYS
David Howellsd84f4f92008-11-14 10:39:23 +1100849static int cap_key_alloc(struct key *key, const struct cred *cred,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200850 unsigned long flags)
851{
852 return 0;
853}
854
855static void cap_key_free(struct key *key)
856{
857}
858
David Howellsd84f4f92008-11-14 10:39:23 +1100859static int cap_key_permission(key_ref_t key_ref, const struct cred *cred,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200860 key_perm_t perm)
861{
862 return 0;
863}
864
865static int cap_key_getsecurity(struct key *key, char **_buffer)
866{
867 *_buffer = NULL;
868 return 0;
869}
870
871#endif /* CONFIG_KEYS */
872
873#ifdef CONFIG_AUDIT
874static int cap_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
875{
876 return 0;
877}
878
879static int cap_audit_rule_known(struct audit_krule *krule)
880{
881 return 0;
882}
883
884static int cap_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
885 struct audit_context *actx)
886{
887 return 0;
888}
889
890static void cap_audit_rule_free(void *lsmrule)
891{
892}
893#endif /* CONFIG_AUDIT */
894
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200895#define set_to_cap_if_null(ops, function) \
896 do { \
897 if (!ops->function) { \
898 ops->function = cap_##function; \
899 pr_debug("Had to override the " #function \
900 " security operation with the default.\n");\
901 } \
902 } while (0)
903
Tetsuo Handac80901f2010-05-14 12:01:26 +0900904void __init security_fixup_ops(struct security_operations *ops)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200905{
Ingo Molnar9e488582009-05-07 19:26:19 +1000906 set_to_cap_if_null(ops, ptrace_access_check);
David Howells5cd9c582008-08-14 11:37:28 +0100907 set_to_cap_if_null(ops, ptrace_traceme);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200908 set_to_cap_if_null(ops, capget);
David Howellsd84f4f92008-11-14 10:39:23 +1100909 set_to_cap_if_null(ops, capset);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200910 set_to_cap_if_null(ops, capable);
911 set_to_cap_if_null(ops, quotactl);
912 set_to_cap_if_null(ops, quota_on);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200913 set_to_cap_if_null(ops, syslog);
914 set_to_cap_if_null(ops, settime);
915 set_to_cap_if_null(ops, vm_enough_memory);
David Howellsa6f76f22008-11-14 10:39:24 +1100916 set_to_cap_if_null(ops, bprm_set_creds);
917 set_to_cap_if_null(ops, bprm_committing_creds);
918 set_to_cap_if_null(ops, bprm_committed_creds);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200919 set_to_cap_if_null(ops, bprm_check_security);
920 set_to_cap_if_null(ops, bprm_secureexec);
921 set_to_cap_if_null(ops, sb_alloc_security);
922 set_to_cap_if_null(ops, sb_free_security);
923 set_to_cap_if_null(ops, sb_copy_data);
Eric Parisff36fe22011-03-03 16:09:14 -0500924 set_to_cap_if_null(ops, sb_remount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200925 set_to_cap_if_null(ops, sb_kern_mount);
926 set_to_cap_if_null(ops, sb_show_options);
927 set_to_cap_if_null(ops, sb_statfs);
928 set_to_cap_if_null(ops, sb_mount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200929 set_to_cap_if_null(ops, sb_umount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200930 set_to_cap_if_null(ops, sb_pivotroot);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200931 set_to_cap_if_null(ops, sb_set_mnt_opts);
932 set_to_cap_if_null(ops, sb_clone_mnt_opts);
933 set_to_cap_if_null(ops, sb_parse_opts_str);
934 set_to_cap_if_null(ops, inode_alloc_security);
935 set_to_cap_if_null(ops, inode_free_security);
936 set_to_cap_if_null(ops, inode_init_security);
937 set_to_cap_if_null(ops, inode_create);
938 set_to_cap_if_null(ops, inode_link);
939 set_to_cap_if_null(ops, inode_unlink);
940 set_to_cap_if_null(ops, inode_symlink);
941 set_to_cap_if_null(ops, inode_mkdir);
942 set_to_cap_if_null(ops, inode_rmdir);
943 set_to_cap_if_null(ops, inode_mknod);
944 set_to_cap_if_null(ops, inode_rename);
945 set_to_cap_if_null(ops, inode_readlink);
946 set_to_cap_if_null(ops, inode_follow_link);
947 set_to_cap_if_null(ops, inode_permission);
948 set_to_cap_if_null(ops, inode_setattr);
949 set_to_cap_if_null(ops, inode_getattr);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200950 set_to_cap_if_null(ops, inode_setxattr);
951 set_to_cap_if_null(ops, inode_post_setxattr);
952 set_to_cap_if_null(ops, inode_getxattr);
953 set_to_cap_if_null(ops, inode_listxattr);
954 set_to_cap_if_null(ops, inode_removexattr);
955 set_to_cap_if_null(ops, inode_need_killpriv);
956 set_to_cap_if_null(ops, inode_killpriv);
957 set_to_cap_if_null(ops, inode_getsecurity);
958 set_to_cap_if_null(ops, inode_setsecurity);
959 set_to_cap_if_null(ops, inode_listsecurity);
960 set_to_cap_if_null(ops, inode_getsecid);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900961#ifdef CONFIG_SECURITY_PATH
962 set_to_cap_if_null(ops, path_mknod);
963 set_to_cap_if_null(ops, path_mkdir);
964 set_to_cap_if_null(ops, path_rmdir);
965 set_to_cap_if_null(ops, path_unlink);
966 set_to_cap_if_null(ops, path_symlink);
967 set_to_cap_if_null(ops, path_link);
968 set_to_cap_if_null(ops, path_rename);
969 set_to_cap_if_null(ops, path_truncate);
Tetsuo Handa89eda062009-10-04 21:49:47 +0900970 set_to_cap_if_null(ops, path_chmod);
971 set_to_cap_if_null(ops, path_chown);
Tetsuo Handa8b8efb42009-10-04 21:49:48 +0900972 set_to_cap_if_null(ops, path_chroot);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900973#endif
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200974 set_to_cap_if_null(ops, file_permission);
975 set_to_cap_if_null(ops, file_alloc_security);
976 set_to_cap_if_null(ops, file_free_security);
977 set_to_cap_if_null(ops, file_ioctl);
Al Viroe5467852012-05-30 13:30:51 -0400978 set_to_cap_if_null(ops, mmap_addr);
979 set_to_cap_if_null(ops, mmap_file);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200980 set_to_cap_if_null(ops, file_mprotect);
981 set_to_cap_if_null(ops, file_lock);
982 set_to_cap_if_null(ops, file_fcntl);
983 set_to_cap_if_null(ops, file_set_fowner);
984 set_to_cap_if_null(ops, file_send_sigiotask);
985 set_to_cap_if_null(ops, file_receive);
Eric Paris83d49852012-04-04 13:45:40 -0400986 set_to_cap_if_null(ops, file_open);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200987 set_to_cap_if_null(ops, task_create);
Kees Cook1a2a4d02011-12-21 12:17:03 -0800988 set_to_cap_if_null(ops, task_free);
David Howellsee18d642009-09-02 09:14:21 +0100989 set_to_cap_if_null(ops, cred_alloc_blank);
David Howellsf1752ee2008-11-14 10:39:17 +1100990 set_to_cap_if_null(ops, cred_free);
David Howellsd84f4f92008-11-14 10:39:23 +1100991 set_to_cap_if_null(ops, cred_prepare);
David Howellsee18d642009-09-02 09:14:21 +0100992 set_to_cap_if_null(ops, cred_transfer);
David Howells3a3b7ce2008-11-14 10:39:28 +1100993 set_to_cap_if_null(ops, kernel_act_as);
994 set_to_cap_if_null(ops, kernel_create_files_as);
Eric Paris91884992009-08-13 09:44:57 -0400995 set_to_cap_if_null(ops, kernel_module_request);
Kees Cook2e72d512012-10-16 07:32:07 +1030996 set_to_cap_if_null(ops, kernel_module_from_file);
David Howellsd84f4f92008-11-14 10:39:23 +1100997 set_to_cap_if_null(ops, task_fix_setuid);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200998 set_to_cap_if_null(ops, task_setpgid);
999 set_to_cap_if_null(ops, task_getpgid);
1000 set_to_cap_if_null(ops, task_getsid);
1001 set_to_cap_if_null(ops, task_getsecid);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001002 set_to_cap_if_null(ops, task_setnice);
1003 set_to_cap_if_null(ops, task_setioprio);
1004 set_to_cap_if_null(ops, task_getioprio);
1005 set_to_cap_if_null(ops, task_setrlimit);
1006 set_to_cap_if_null(ops, task_setscheduler);
1007 set_to_cap_if_null(ops, task_getscheduler);
1008 set_to_cap_if_null(ops, task_movememory);
1009 set_to_cap_if_null(ops, task_wait);
1010 set_to_cap_if_null(ops, task_kill);
1011 set_to_cap_if_null(ops, task_prctl);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001012 set_to_cap_if_null(ops, task_to_inode);
1013 set_to_cap_if_null(ops, ipc_permission);
1014 set_to_cap_if_null(ops, ipc_getsecid);
1015 set_to_cap_if_null(ops, msg_msg_alloc_security);
1016 set_to_cap_if_null(ops, msg_msg_free_security);
1017 set_to_cap_if_null(ops, msg_queue_alloc_security);
1018 set_to_cap_if_null(ops, msg_queue_free_security);
1019 set_to_cap_if_null(ops, msg_queue_associate);
1020 set_to_cap_if_null(ops, msg_queue_msgctl);
1021 set_to_cap_if_null(ops, msg_queue_msgsnd);
1022 set_to_cap_if_null(ops, msg_queue_msgrcv);
1023 set_to_cap_if_null(ops, shm_alloc_security);
1024 set_to_cap_if_null(ops, shm_free_security);
1025 set_to_cap_if_null(ops, shm_associate);
1026 set_to_cap_if_null(ops, shm_shmctl);
1027 set_to_cap_if_null(ops, shm_shmat);
1028 set_to_cap_if_null(ops, sem_alloc_security);
1029 set_to_cap_if_null(ops, sem_free_security);
1030 set_to_cap_if_null(ops, sem_associate);
1031 set_to_cap_if_null(ops, sem_semctl);
1032 set_to_cap_if_null(ops, sem_semop);
1033 set_to_cap_if_null(ops, netlink_send);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001034 set_to_cap_if_null(ops, d_instantiate);
1035 set_to_cap_if_null(ops, getprocattr);
1036 set_to_cap_if_null(ops, setprocattr);
1037 set_to_cap_if_null(ops, secid_to_secctx);
1038 set_to_cap_if_null(ops, secctx_to_secid);
1039 set_to_cap_if_null(ops, release_secctx);
David P. Quigley1ee65e32009-09-03 14:25:57 -04001040 set_to_cap_if_null(ops, inode_notifysecctx);
1041 set_to_cap_if_null(ops, inode_setsecctx);
1042 set_to_cap_if_null(ops, inode_getsecctx);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001043#ifdef CONFIG_SECURITY_NETWORK
1044 set_to_cap_if_null(ops, unix_stream_connect);
1045 set_to_cap_if_null(ops, unix_may_send);
1046 set_to_cap_if_null(ops, socket_create);
1047 set_to_cap_if_null(ops, socket_post_create);
1048 set_to_cap_if_null(ops, socket_bind);
1049 set_to_cap_if_null(ops, socket_connect);
1050 set_to_cap_if_null(ops, socket_listen);
1051 set_to_cap_if_null(ops, socket_accept);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001052 set_to_cap_if_null(ops, socket_sendmsg);
1053 set_to_cap_if_null(ops, socket_recvmsg);
1054 set_to_cap_if_null(ops, socket_getsockname);
1055 set_to_cap_if_null(ops, socket_getpeername);
1056 set_to_cap_if_null(ops, socket_setsockopt);
1057 set_to_cap_if_null(ops, socket_getsockopt);
1058 set_to_cap_if_null(ops, socket_shutdown);
1059 set_to_cap_if_null(ops, socket_sock_rcv_skb);
1060 set_to_cap_if_null(ops, socket_getpeersec_stream);
1061 set_to_cap_if_null(ops, socket_getpeersec_dgram);
1062 set_to_cap_if_null(ops, sk_alloc_security);
1063 set_to_cap_if_null(ops, sk_free_security);
1064 set_to_cap_if_null(ops, sk_clone_security);
1065 set_to_cap_if_null(ops, sk_getsecid);
1066 set_to_cap_if_null(ops, sock_graft);
1067 set_to_cap_if_null(ops, inet_conn_request);
1068 set_to_cap_if_null(ops, inet_csk_clone);
1069 set_to_cap_if_null(ops, inet_conn_established);
Eric Paris2606fd12010-10-13 16:24:41 -04001070 set_to_cap_if_null(ops, secmark_relabel_packet);
1071 set_to_cap_if_null(ops, secmark_refcount_inc);
1072 set_to_cap_if_null(ops, secmark_refcount_dec);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001073 set_to_cap_if_null(ops, req_classify_flow);
Paul Moore5dbbaf22013-01-14 07:12:19 +00001074 set_to_cap_if_null(ops, tun_dev_alloc_security);
1075 set_to_cap_if_null(ops, tun_dev_free_security);
Paul Moore2b980db2009-08-28 18:12:43 -04001076 set_to_cap_if_null(ops, tun_dev_create);
Paul Moore5dbbaf22013-01-14 07:12:19 +00001077 set_to_cap_if_null(ops, tun_dev_open);
1078 set_to_cap_if_null(ops, tun_dev_attach_queue);
Paul Moore2b980db2009-08-28 18:12:43 -04001079 set_to_cap_if_null(ops, tun_dev_attach);
Eric Dumazetca10b9e2013-04-08 17:58:11 +00001080 set_to_cap_if_null(ops, skb_owned_by);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001081#endif /* CONFIG_SECURITY_NETWORK */
1082#ifdef CONFIG_SECURITY_NETWORK_XFRM
1083 set_to_cap_if_null(ops, xfrm_policy_alloc_security);
1084 set_to_cap_if_null(ops, xfrm_policy_clone_security);
1085 set_to_cap_if_null(ops, xfrm_policy_free_security);
1086 set_to_cap_if_null(ops, xfrm_policy_delete_security);
1087 set_to_cap_if_null(ops, xfrm_state_alloc_security);
1088 set_to_cap_if_null(ops, xfrm_state_free_security);
1089 set_to_cap_if_null(ops, xfrm_state_delete_security);
1090 set_to_cap_if_null(ops, xfrm_policy_lookup);
1091 set_to_cap_if_null(ops, xfrm_state_pol_flow_match);
1092 set_to_cap_if_null(ops, xfrm_decode_session);
1093#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1094#ifdef CONFIG_KEYS
1095 set_to_cap_if_null(ops, key_alloc);
1096 set_to_cap_if_null(ops, key_free);
1097 set_to_cap_if_null(ops, key_permission);
1098 set_to_cap_if_null(ops, key_getsecurity);
1099#endif /* CONFIG_KEYS */
1100#ifdef CONFIG_AUDIT
1101 set_to_cap_if_null(ops, audit_rule_init);
1102 set_to_cap_if_null(ops, audit_rule_known);
1103 set_to_cap_if_null(ops, audit_rule_match);
1104 set_to_cap_if_null(ops, audit_rule_free);
1105#endif
1106}