blob: 21e2b9cae685f01536ed159443707d5046c8c34c [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,
David Quigley649f6e72013-05-22 12:50:36 -040094 struct security_mnt_opts *opts,
95 unsigned long kern_flags,
96 unsigned long *set_kern_flags)
97
Miklos Szeredi5915eb52008-07-03 20:56:05 +020098{
99 if (unlikely(opts->num_mnt_opts))
100 return -EOPNOTSUPP;
101 return 0;
102}
103
Jeff Layton094f7b62013-04-01 08:14:24 -0400104static int cap_sb_clone_mnt_opts(const struct super_block *oldsb,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200105 struct super_block *newsb)
106{
Jeff Layton094f7b62013-04-01 08:14:24 -0400107 return 0;
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200108}
109
110static int cap_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
111{
112 return 0;
113}
114
David Quigleyd47be3d2013-05-22 12:50:34 -0400115static int cap_dentry_init_security(struct dentry *dentry, int mode,
116 struct qstr *name, void **ctx,
117 u32 *ctxlen)
118{
119 return 0;
120}
121
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200122static int cap_inode_alloc_security(struct inode *inode)
123{
124 return 0;
125}
126
127static void cap_inode_free_security(struct inode *inode)
128{
129}
130
131static int cap_inode_init_security(struct inode *inode, struct inode *dir,
Tetsuo Handa95489062013-07-25 05:44:02 +0900132 const struct qstr *qstr, const char **name,
Eric Paris2a7dba32011-02-01 11:05:39 -0500133 void **value, size_t *len)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200134{
135 return -EOPNOTSUPP;
136}
137
138static int cap_inode_create(struct inode *inode, struct dentry *dentry,
Al Viro4acdaf22011-07-26 01:42:34 -0400139 umode_t mask)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200140{
141 return 0;
142}
143
144static int cap_inode_link(struct dentry *old_dentry, struct inode *inode,
145 struct dentry *new_dentry)
146{
147 return 0;
148}
149
150static int cap_inode_unlink(struct inode *inode, struct dentry *dentry)
151{
152 return 0;
153}
154
155static int cap_inode_symlink(struct inode *inode, struct dentry *dentry,
156 const char *name)
157{
158 return 0;
159}
160
161static int cap_inode_mkdir(struct inode *inode, struct dentry *dentry,
Al Viro18bb1db2011-07-26 01:41:39 -0400162 umode_t mask)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200163{
164 return 0;
165}
166
167static int cap_inode_rmdir(struct inode *inode, struct dentry *dentry)
168{
169 return 0;
170}
171
172static int cap_inode_mknod(struct inode *inode, struct dentry *dentry,
Al Viro1a67aaf2011-07-26 01:52:52 -0400173 umode_t mode, dev_t dev)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200174{
175 return 0;
176}
177
178static int cap_inode_rename(struct inode *old_inode, struct dentry *old_dentry,
179 struct inode *new_inode, struct dentry *new_dentry)
180{
181 return 0;
182}
183
184static int cap_inode_readlink(struct dentry *dentry)
185{
186 return 0;
187}
188
189static int cap_inode_follow_link(struct dentry *dentry,
190 struct nameidata *nameidata)
191{
192 return 0;
193}
194
Al Viroe74f71e2011-06-20 19:38:15 -0400195static int cap_inode_permission(struct inode *inode, int mask)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200196{
197 return 0;
198}
199
200static int cap_inode_setattr(struct dentry *dentry, struct iattr *iattr)
201{
202 return 0;
203}
204
205static int cap_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
206{
207 return 0;
208}
209
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200210static void cap_inode_post_setxattr(struct dentry *dentry, const char *name,
211 const void *value, size_t size, int flags)
212{
213}
214
215static int cap_inode_getxattr(struct dentry *dentry, const char *name)
216{
217 return 0;
218}
219
220static int cap_inode_listxattr(struct dentry *dentry)
221{
222 return 0;
223}
224
225static int cap_inode_getsecurity(const struct inode *inode, const char *name,
226 void **buffer, bool alloc)
227{
228 return -EOPNOTSUPP;
229}
230
231static int cap_inode_setsecurity(struct inode *inode, const char *name,
232 const void *value, size_t size, int flags)
233{
234 return -EOPNOTSUPP;
235}
236
237static int cap_inode_listsecurity(struct inode *inode, char *buffer,
238 size_t buffer_size)
239{
240 return 0;
241}
242
243static void cap_inode_getsecid(const struct inode *inode, u32 *secid)
244{
245 *secid = 0;
246}
247
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900248#ifdef CONFIG_SECURITY_PATH
Al Viro04fc66e2011-11-21 14:58:38 -0500249static int cap_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900250 unsigned int dev)
251{
252 return 0;
253}
254
Al Viro4572bef2011-11-21 14:56:21 -0500255static int cap_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900256{
257 return 0;
258}
259
260static int cap_path_rmdir(struct path *dir, struct dentry *dentry)
261{
262 return 0;
263}
264
265static int cap_path_unlink(struct path *dir, struct dentry *dentry)
266{
267 return 0;
268}
269
270static int cap_path_symlink(struct path *dir, struct dentry *dentry,
271 const char *old_name)
272{
273 return 0;
274}
275
276static int cap_path_link(struct dentry *old_dentry, struct path *new_dir,
277 struct dentry *new_dentry)
278{
279 return 0;
280}
281
282static int cap_path_rename(struct path *old_path, struct dentry *old_dentry,
283 struct path *new_path, struct dentry *new_dentry)
284{
285 return 0;
286}
287
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +0900288static int cap_path_truncate(struct path *path)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900289{
290 return 0;
291}
Tetsuo Handa89eda062009-10-04 21:49:47 +0900292
Al Virocdcf1162011-12-08 10:51:53 -0500293static int cap_path_chmod(struct path *path, umode_t mode)
Tetsuo Handa89eda062009-10-04 21:49:47 +0900294{
295 return 0;
296}
297
Eric W. Biedermand2b31ca2012-06-01 16:14:19 -0600298static int cap_path_chown(struct path *path, kuid_t uid, kgid_t gid)
Tetsuo Handa89eda062009-10-04 21:49:47 +0900299{
300 return 0;
301}
Tetsuo Handa8b8efb42009-10-04 21:49:48 +0900302
303static int cap_path_chroot(struct path *root)
304{
305 return 0;
306}
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900307#endif
308
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200309static int cap_file_permission(struct file *file, int mask)
310{
311 return 0;
312}
313
314static int cap_file_alloc_security(struct file *file)
315{
316 return 0;
317}
318
319static void cap_file_free_security(struct file *file)
320{
321}
322
323static int cap_file_ioctl(struct file *file, unsigned int command,
324 unsigned long arg)
325{
326 return 0;
327}
328
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200329static int cap_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
330 unsigned long prot)
331{
332 return 0;
333}
334
335static int cap_file_lock(struct file *file, unsigned int cmd)
336{
337 return 0;
338}
339
340static int cap_file_fcntl(struct file *file, unsigned int cmd,
341 unsigned long arg)
342{
343 return 0;
344}
345
346static int cap_file_set_fowner(struct file *file)
347{
348 return 0;
349}
350
351static int cap_file_send_sigiotask(struct task_struct *tsk,
352 struct fown_struct *fown, int sig)
353{
354 return 0;
355}
356
357static int cap_file_receive(struct file *file)
358{
359 return 0;
360}
361
Eric Paris83d49852012-04-04 13:45:40 -0400362static int cap_file_open(struct file *file, const struct cred *cred)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200363{
364 return 0;
365}
366
367static int cap_task_create(unsigned long clone_flags)
368{
369 return 0;
370}
371
Kees Cook1a2a4d02011-12-21 12:17:03 -0800372static void cap_task_free(struct task_struct *task)
373{
374}
375
David Howellsee18d642009-09-02 09:14:21 +0100376static int cap_cred_alloc_blank(struct cred *cred, gfp_t gfp)
377{
378 return 0;
379}
380
David Howellsd84f4f92008-11-14 10:39:23 +1100381static void cap_cred_free(struct cred *cred)
382{
383}
384
385static int cap_cred_prepare(struct cred *new, const struct cred *old, gfp_t gfp)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200386{
387 return 0;
388}
389
David Howellsee18d642009-09-02 09:14:21 +0100390static void cap_cred_transfer(struct cred *new, const struct cred *old)
391{
392}
393
David Howells3a3b7ce2008-11-14 10:39:28 +1100394static int cap_kernel_act_as(struct cred *new, u32 secid)
395{
396 return 0;
397}
398
399static int cap_kernel_create_files_as(struct cred *new, struct inode *inode)
400{
401 return 0;
402}
403
Eric Parisdd8dbf22009-11-03 16:35:32 +1100404static int cap_kernel_module_request(char *kmod_name)
Eric Paris91884992009-08-13 09:44:57 -0400405{
406 return 0;
407}
408
Kees Cook2e72d512012-10-16 07:32:07 +1030409static int cap_kernel_module_from_file(struct file *file)
410{
411 return 0;
412}
413
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200414static int cap_task_setpgid(struct task_struct *p, pid_t pgid)
415{
416 return 0;
417}
418
419static int cap_task_getpgid(struct task_struct *p)
420{
421 return 0;
422}
423
424static int cap_task_getsid(struct task_struct *p)
425{
426 return 0;
427}
428
429static void cap_task_getsecid(struct task_struct *p, u32 *secid)
430{
431 *secid = 0;
432}
433
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200434static int cap_task_getioprio(struct task_struct *p)
435{
436 return 0;
437}
438
Jiri Slaby8fd00b42009-08-26 18:41:16 +0200439static int cap_task_setrlimit(struct task_struct *p, unsigned int resource,
440 struct rlimit *new_rlim)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200441{
442 return 0;
443}
444
445static int cap_task_getscheduler(struct task_struct *p)
446{
447 return 0;
448}
449
450static int cap_task_movememory(struct task_struct *p)
451{
452 return 0;
453}
454
455static int cap_task_wait(struct task_struct *p)
456{
457 return 0;
458}
459
460static int cap_task_kill(struct task_struct *p, struct siginfo *info,
461 int sig, u32 secid)
462{
463 return 0;
464}
465
466static void cap_task_to_inode(struct task_struct *p, struct inode *inode)
467{
468}
469
470static int cap_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
471{
472 return 0;
473}
474
475static void cap_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
476{
477 *secid = 0;
478}
479
480static int cap_msg_msg_alloc_security(struct msg_msg *msg)
481{
482 return 0;
483}
484
485static void cap_msg_msg_free_security(struct msg_msg *msg)
486{
487}
488
489static int cap_msg_queue_alloc_security(struct msg_queue *msq)
490{
491 return 0;
492}
493
494static void cap_msg_queue_free_security(struct msg_queue *msq)
495{
496}
497
498static int cap_msg_queue_associate(struct msg_queue *msq, int msqflg)
499{
500 return 0;
501}
502
503static int cap_msg_queue_msgctl(struct msg_queue *msq, int cmd)
504{
505 return 0;
506}
507
508static int cap_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
509 int msgflg)
510{
511 return 0;
512}
513
514static int cap_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
515 struct task_struct *target, long type, int mode)
516{
517 return 0;
518}
519
520static int cap_shm_alloc_security(struct shmid_kernel *shp)
521{
522 return 0;
523}
524
525static void cap_shm_free_security(struct shmid_kernel *shp)
526{
527}
528
529static int cap_shm_associate(struct shmid_kernel *shp, int shmflg)
530{
531 return 0;
532}
533
534static int cap_shm_shmctl(struct shmid_kernel *shp, int cmd)
535{
536 return 0;
537}
538
539static int cap_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr,
540 int shmflg)
541{
542 return 0;
543}
544
545static int cap_sem_alloc_security(struct sem_array *sma)
546{
547 return 0;
548}
549
550static void cap_sem_free_security(struct sem_array *sma)
551{
552}
553
554static int cap_sem_associate(struct sem_array *sma, int semflg)
555{
556 return 0;
557}
558
559static int cap_sem_semctl(struct sem_array *sma, int cmd)
560{
561 return 0;
562}
563
564static int cap_sem_semop(struct sem_array *sma, struct sembuf *sops,
565 unsigned nsops, int alter)
566{
567 return 0;
568}
569
570#ifdef CONFIG_SECURITY_NETWORK
David S. Miller3610cda2011-01-05 15:38:53 -0800571static int cap_unix_stream_connect(struct sock *sock, struct sock *other,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200572 struct sock *newsk)
573{
574 return 0;
575}
576
577static int cap_unix_may_send(struct socket *sock, struct socket *other)
578{
579 return 0;
580}
581
582static int cap_socket_create(int family, int type, int protocol, int kern)
583{
584 return 0;
585}
586
587static int cap_socket_post_create(struct socket *sock, int family, int type,
588 int protocol, int kern)
589{
590 return 0;
591}
592
593static int cap_socket_bind(struct socket *sock, struct sockaddr *address,
594 int addrlen)
595{
596 return 0;
597}
598
599static int cap_socket_connect(struct socket *sock, struct sockaddr *address,
600 int addrlen)
601{
602 return 0;
603}
604
605static int cap_socket_listen(struct socket *sock, int backlog)
606{
607 return 0;
608}
609
610static int cap_socket_accept(struct socket *sock, struct socket *newsock)
611{
612 return 0;
613}
614
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200615static int cap_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
616{
617 return 0;
618}
619
620static int cap_socket_recvmsg(struct socket *sock, struct msghdr *msg,
621 int size, int flags)
622{
623 return 0;
624}
625
626static int cap_socket_getsockname(struct socket *sock)
627{
628 return 0;
629}
630
631static int cap_socket_getpeername(struct socket *sock)
632{
633 return 0;
634}
635
636static int cap_socket_setsockopt(struct socket *sock, int level, int optname)
637{
638 return 0;
639}
640
641static int cap_socket_getsockopt(struct socket *sock, int level, int optname)
642{
643 return 0;
644}
645
646static int cap_socket_shutdown(struct socket *sock, int how)
647{
648 return 0;
649}
650
651static int cap_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
652{
653 return 0;
654}
655
656static int cap_socket_getpeersec_stream(struct socket *sock,
657 char __user *optval,
658 int __user *optlen, unsigned len)
659{
660 return -ENOPROTOOPT;
661}
662
663static int cap_socket_getpeersec_dgram(struct socket *sock,
664 struct sk_buff *skb, u32 *secid)
665{
666 return -ENOPROTOOPT;
667}
668
669static int cap_sk_alloc_security(struct sock *sk, int family, gfp_t priority)
670{
671 return 0;
672}
673
674static void cap_sk_free_security(struct sock *sk)
675{
676}
677
678static void cap_sk_clone_security(const struct sock *sk, struct sock *newsk)
679{
680}
681
682static void cap_sk_getsecid(struct sock *sk, u32 *secid)
683{
684}
685
686static void cap_sock_graft(struct sock *sk, struct socket *parent)
687{
688}
689
690static int cap_inet_conn_request(struct sock *sk, struct sk_buff *skb,
691 struct request_sock *req)
692{
693 return 0;
694}
695
696static void cap_inet_csk_clone(struct sock *newsk,
697 const struct request_sock *req)
698{
699}
700
701static void cap_inet_conn_established(struct sock *sk, struct sk_buff *skb)
702{
703}
704
Eric Paris2606fd12010-10-13 16:24:41 -0400705static int cap_secmark_relabel_packet(u32 secid)
706{
707 return 0;
708}
Paul Moore2b980db2009-08-28 18:12:43 -0400709
Eric Paris2606fd12010-10-13 16:24:41 -0400710static void cap_secmark_refcount_inc(void)
711{
712}
713
714static void cap_secmark_refcount_dec(void)
715{
716}
Paul Moore2b980db2009-08-28 18:12:43 -0400717
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200718static void cap_req_classify_flow(const struct request_sock *req,
719 struct flowi *fl)
720{
721}
Paul Moore2b980db2009-08-28 18:12:43 -0400722
Paul Moore5dbbaf22013-01-14 07:12:19 +0000723static int cap_tun_dev_alloc_security(void **security)
724{
725 return 0;
726}
727
728static void cap_tun_dev_free_security(void *security)
729{
730}
731
Paul Moore2b980db2009-08-28 18:12:43 -0400732static int cap_tun_dev_create(void)
733{
734 return 0;
735}
736
Paul Moore5dbbaf22013-01-14 07:12:19 +0000737static int cap_tun_dev_attach_queue(void *security)
Paul Moore2b980db2009-08-28 18:12:43 -0400738{
Paul Moore5dbbaf22013-01-14 07:12:19 +0000739 return 0;
Paul Moore2b980db2009-08-28 18:12:43 -0400740}
741
Paul Moore5dbbaf22013-01-14 07:12:19 +0000742static int cap_tun_dev_attach(struct sock *sk, void *security)
743{
744 return 0;
745}
746
747static int cap_tun_dev_open(void *security)
Paul Moore2b980db2009-08-28 18:12:43 -0400748{
749 return 0;
750}
Eric Dumazetca10b9e2013-04-08 17:58:11 +0000751
752static void cap_skb_owned_by(struct sk_buff *skb, struct sock *sk)
753{
754}
755
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200756#endif /* CONFIG_SECURITY_NETWORK */
757
758#ifdef CONFIG_SECURITY_NETWORK_XFRM
759static int cap_xfrm_policy_alloc_security(struct xfrm_sec_ctx **ctxp,
Nikolay Aleksandrov52a4c642014-03-07 12:44:19 +0100760 struct xfrm_user_sec_ctx *sec_ctx,
761 gfp_t gfp)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200762{
763 return 0;
764}
765
766static int cap_xfrm_policy_clone_security(struct xfrm_sec_ctx *old_ctx,
767 struct xfrm_sec_ctx **new_ctxp)
768{
769 return 0;
770}
771
772static void cap_xfrm_policy_free_security(struct xfrm_sec_ctx *ctx)
773{
774}
775
776static int cap_xfrm_policy_delete_security(struct xfrm_sec_ctx *ctx)
777{
778 return 0;
779}
780
Paul Moore2e5aa862013-07-23 17:38:38 -0400781static int cap_xfrm_state_alloc(struct xfrm_state *x,
782 struct xfrm_user_sec_ctx *sec_ctx)
783{
784 return 0;
785}
786
787static int cap_xfrm_state_alloc_acquire(struct xfrm_state *x,
788 struct xfrm_sec_ctx *polsec,
789 u32 secid)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200790{
791 return 0;
792}
793
794static void cap_xfrm_state_free_security(struct xfrm_state *x)
795{
796}
797
798static int cap_xfrm_state_delete_security(struct xfrm_state *x)
799{
800 return 0;
801}
802
803static int cap_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 sk_sid, u8 dir)
804{
805 return 0;
806}
807
808static int cap_xfrm_state_pol_flow_match(struct xfrm_state *x,
809 struct xfrm_policy *xp,
David S. Millere33f7702011-02-22 18:13:15 -0800810 const struct flowi *fl)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200811{
812 return 1;
813}
814
815static int cap_xfrm_decode_session(struct sk_buff *skb, u32 *fl, int ckall)
816{
817 return 0;
818}
819
820#endif /* CONFIG_SECURITY_NETWORK_XFRM */
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200821static void cap_d_instantiate(struct dentry *dentry, struct inode *inode)
822{
823}
824
825static int cap_getprocattr(struct task_struct *p, char *name, char **value)
826{
827 return -EINVAL;
828}
829
830static int cap_setprocattr(struct task_struct *p, char *name, void *value,
831 size_t size)
832{
833 return -EINVAL;
834}
835
David Quigley746df9b2013-05-22 12:50:35 -0400836static int cap_ismaclabel(const char *name)
837{
838 return 0;
839}
840
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200841static int cap_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
842{
843 return -EOPNOTSUPP;
844}
845
846static int cap_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
847{
Eric Paris2606fd12010-10-13 16:24:41 -0400848 *secid = 0;
849 return 0;
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200850}
851
852static void cap_release_secctx(char *secdata, u32 seclen)
853{
854}
855
David P. Quigley1ee65e32009-09-03 14:25:57 -0400856static int cap_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
857{
858 return 0;
859}
860
861static int cap_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
862{
863 return 0;
864}
865
866static int cap_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
867{
J. Bruce Fields0d422af2013-05-08 18:05:41 -0400868 return -EOPNOTSUPP;
David P. Quigley1ee65e32009-09-03 14:25:57 -0400869}
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200870#ifdef CONFIG_KEYS
David Howellsd84f4f92008-11-14 10:39:23 +1100871static int cap_key_alloc(struct key *key, const struct cred *cred,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200872 unsigned long flags)
873{
874 return 0;
875}
876
877static void cap_key_free(struct key *key)
878{
879}
880
David Howellsd84f4f92008-11-14 10:39:23 +1100881static int cap_key_permission(key_ref_t key_ref, const struct cred *cred,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200882 key_perm_t perm)
883{
884 return 0;
885}
886
887static int cap_key_getsecurity(struct key *key, char **_buffer)
888{
889 *_buffer = NULL;
890 return 0;
891}
892
893#endif /* CONFIG_KEYS */
894
895#ifdef CONFIG_AUDIT
896static int cap_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
897{
898 return 0;
899}
900
901static int cap_audit_rule_known(struct audit_krule *krule)
902{
903 return 0;
904}
905
906static int cap_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
907 struct audit_context *actx)
908{
909 return 0;
910}
911
912static void cap_audit_rule_free(void *lsmrule)
913{
914}
915#endif /* CONFIG_AUDIT */
916
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200917#define set_to_cap_if_null(ops, function) \
918 do { \
919 if (!ops->function) { \
920 ops->function = cap_##function; \
921 pr_debug("Had to override the " #function \
922 " security operation with the default.\n");\
923 } \
924 } while (0)
925
Tetsuo Handac80901f2010-05-14 12:01:26 +0900926void __init security_fixup_ops(struct security_operations *ops)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200927{
Ingo Molnar9e488582009-05-07 19:26:19 +1000928 set_to_cap_if_null(ops, ptrace_access_check);
David Howells5cd9c582008-08-14 11:37:28 +0100929 set_to_cap_if_null(ops, ptrace_traceme);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200930 set_to_cap_if_null(ops, capget);
David Howellsd84f4f92008-11-14 10:39:23 +1100931 set_to_cap_if_null(ops, capset);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200932 set_to_cap_if_null(ops, capable);
933 set_to_cap_if_null(ops, quotactl);
934 set_to_cap_if_null(ops, quota_on);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200935 set_to_cap_if_null(ops, syslog);
936 set_to_cap_if_null(ops, settime);
937 set_to_cap_if_null(ops, vm_enough_memory);
David Howellsa6f76f22008-11-14 10:39:24 +1100938 set_to_cap_if_null(ops, bprm_set_creds);
939 set_to_cap_if_null(ops, bprm_committing_creds);
940 set_to_cap_if_null(ops, bprm_committed_creds);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200941 set_to_cap_if_null(ops, bprm_check_security);
942 set_to_cap_if_null(ops, bprm_secureexec);
943 set_to_cap_if_null(ops, sb_alloc_security);
944 set_to_cap_if_null(ops, sb_free_security);
945 set_to_cap_if_null(ops, sb_copy_data);
Eric Parisff36fe22011-03-03 16:09:14 -0500946 set_to_cap_if_null(ops, sb_remount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200947 set_to_cap_if_null(ops, sb_kern_mount);
948 set_to_cap_if_null(ops, sb_show_options);
949 set_to_cap_if_null(ops, sb_statfs);
950 set_to_cap_if_null(ops, sb_mount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200951 set_to_cap_if_null(ops, sb_umount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200952 set_to_cap_if_null(ops, sb_pivotroot);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200953 set_to_cap_if_null(ops, sb_set_mnt_opts);
954 set_to_cap_if_null(ops, sb_clone_mnt_opts);
955 set_to_cap_if_null(ops, sb_parse_opts_str);
David Quigleyd47be3d2013-05-22 12:50:34 -0400956 set_to_cap_if_null(ops, dentry_init_security);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200957 set_to_cap_if_null(ops, inode_alloc_security);
958 set_to_cap_if_null(ops, inode_free_security);
959 set_to_cap_if_null(ops, inode_init_security);
960 set_to_cap_if_null(ops, inode_create);
961 set_to_cap_if_null(ops, inode_link);
962 set_to_cap_if_null(ops, inode_unlink);
963 set_to_cap_if_null(ops, inode_symlink);
964 set_to_cap_if_null(ops, inode_mkdir);
965 set_to_cap_if_null(ops, inode_rmdir);
966 set_to_cap_if_null(ops, inode_mknod);
967 set_to_cap_if_null(ops, inode_rename);
968 set_to_cap_if_null(ops, inode_readlink);
969 set_to_cap_if_null(ops, inode_follow_link);
970 set_to_cap_if_null(ops, inode_permission);
971 set_to_cap_if_null(ops, inode_setattr);
972 set_to_cap_if_null(ops, inode_getattr);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200973 set_to_cap_if_null(ops, inode_setxattr);
974 set_to_cap_if_null(ops, inode_post_setxattr);
975 set_to_cap_if_null(ops, inode_getxattr);
976 set_to_cap_if_null(ops, inode_listxattr);
977 set_to_cap_if_null(ops, inode_removexattr);
978 set_to_cap_if_null(ops, inode_need_killpriv);
979 set_to_cap_if_null(ops, inode_killpriv);
980 set_to_cap_if_null(ops, inode_getsecurity);
981 set_to_cap_if_null(ops, inode_setsecurity);
982 set_to_cap_if_null(ops, inode_listsecurity);
983 set_to_cap_if_null(ops, inode_getsecid);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900984#ifdef CONFIG_SECURITY_PATH
985 set_to_cap_if_null(ops, path_mknod);
986 set_to_cap_if_null(ops, path_mkdir);
987 set_to_cap_if_null(ops, path_rmdir);
988 set_to_cap_if_null(ops, path_unlink);
989 set_to_cap_if_null(ops, path_symlink);
990 set_to_cap_if_null(ops, path_link);
991 set_to_cap_if_null(ops, path_rename);
992 set_to_cap_if_null(ops, path_truncate);
Tetsuo Handa89eda062009-10-04 21:49:47 +0900993 set_to_cap_if_null(ops, path_chmod);
994 set_to_cap_if_null(ops, path_chown);
Tetsuo Handa8b8efb42009-10-04 21:49:48 +0900995 set_to_cap_if_null(ops, path_chroot);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900996#endif
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200997 set_to_cap_if_null(ops, file_permission);
998 set_to_cap_if_null(ops, file_alloc_security);
999 set_to_cap_if_null(ops, file_free_security);
1000 set_to_cap_if_null(ops, file_ioctl);
Al Viroe5467852012-05-30 13:30:51 -04001001 set_to_cap_if_null(ops, mmap_addr);
1002 set_to_cap_if_null(ops, mmap_file);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001003 set_to_cap_if_null(ops, file_mprotect);
1004 set_to_cap_if_null(ops, file_lock);
1005 set_to_cap_if_null(ops, file_fcntl);
1006 set_to_cap_if_null(ops, file_set_fowner);
1007 set_to_cap_if_null(ops, file_send_sigiotask);
1008 set_to_cap_if_null(ops, file_receive);
Eric Paris83d49852012-04-04 13:45:40 -04001009 set_to_cap_if_null(ops, file_open);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001010 set_to_cap_if_null(ops, task_create);
Kees Cook1a2a4d02011-12-21 12:17:03 -08001011 set_to_cap_if_null(ops, task_free);
David Howellsee18d642009-09-02 09:14:21 +01001012 set_to_cap_if_null(ops, cred_alloc_blank);
David Howellsf1752ee2008-11-14 10:39:17 +11001013 set_to_cap_if_null(ops, cred_free);
David Howellsd84f4f92008-11-14 10:39:23 +11001014 set_to_cap_if_null(ops, cred_prepare);
David Howellsee18d642009-09-02 09:14:21 +01001015 set_to_cap_if_null(ops, cred_transfer);
David Howells3a3b7ce2008-11-14 10:39:28 +11001016 set_to_cap_if_null(ops, kernel_act_as);
1017 set_to_cap_if_null(ops, kernel_create_files_as);
Eric Paris91884992009-08-13 09:44:57 -04001018 set_to_cap_if_null(ops, kernel_module_request);
Kees Cook2e72d512012-10-16 07:32:07 +10301019 set_to_cap_if_null(ops, kernel_module_from_file);
David Howellsd84f4f92008-11-14 10:39:23 +11001020 set_to_cap_if_null(ops, task_fix_setuid);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001021 set_to_cap_if_null(ops, task_setpgid);
1022 set_to_cap_if_null(ops, task_getpgid);
1023 set_to_cap_if_null(ops, task_getsid);
1024 set_to_cap_if_null(ops, task_getsecid);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001025 set_to_cap_if_null(ops, task_setnice);
1026 set_to_cap_if_null(ops, task_setioprio);
1027 set_to_cap_if_null(ops, task_getioprio);
1028 set_to_cap_if_null(ops, task_setrlimit);
1029 set_to_cap_if_null(ops, task_setscheduler);
1030 set_to_cap_if_null(ops, task_getscheduler);
1031 set_to_cap_if_null(ops, task_movememory);
1032 set_to_cap_if_null(ops, task_wait);
1033 set_to_cap_if_null(ops, task_kill);
1034 set_to_cap_if_null(ops, task_prctl);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001035 set_to_cap_if_null(ops, task_to_inode);
1036 set_to_cap_if_null(ops, ipc_permission);
1037 set_to_cap_if_null(ops, ipc_getsecid);
1038 set_to_cap_if_null(ops, msg_msg_alloc_security);
1039 set_to_cap_if_null(ops, msg_msg_free_security);
1040 set_to_cap_if_null(ops, msg_queue_alloc_security);
1041 set_to_cap_if_null(ops, msg_queue_free_security);
1042 set_to_cap_if_null(ops, msg_queue_associate);
1043 set_to_cap_if_null(ops, msg_queue_msgctl);
1044 set_to_cap_if_null(ops, msg_queue_msgsnd);
1045 set_to_cap_if_null(ops, msg_queue_msgrcv);
1046 set_to_cap_if_null(ops, shm_alloc_security);
1047 set_to_cap_if_null(ops, shm_free_security);
1048 set_to_cap_if_null(ops, shm_associate);
1049 set_to_cap_if_null(ops, shm_shmctl);
1050 set_to_cap_if_null(ops, shm_shmat);
1051 set_to_cap_if_null(ops, sem_alloc_security);
1052 set_to_cap_if_null(ops, sem_free_security);
1053 set_to_cap_if_null(ops, sem_associate);
1054 set_to_cap_if_null(ops, sem_semctl);
1055 set_to_cap_if_null(ops, sem_semop);
1056 set_to_cap_if_null(ops, netlink_send);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001057 set_to_cap_if_null(ops, d_instantiate);
1058 set_to_cap_if_null(ops, getprocattr);
1059 set_to_cap_if_null(ops, setprocattr);
David Quigley746df9b2013-05-22 12:50:35 -04001060 set_to_cap_if_null(ops, ismaclabel);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001061 set_to_cap_if_null(ops, secid_to_secctx);
1062 set_to_cap_if_null(ops, secctx_to_secid);
1063 set_to_cap_if_null(ops, release_secctx);
David P. Quigley1ee65e32009-09-03 14:25:57 -04001064 set_to_cap_if_null(ops, inode_notifysecctx);
1065 set_to_cap_if_null(ops, inode_setsecctx);
1066 set_to_cap_if_null(ops, inode_getsecctx);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001067#ifdef CONFIG_SECURITY_NETWORK
1068 set_to_cap_if_null(ops, unix_stream_connect);
1069 set_to_cap_if_null(ops, unix_may_send);
1070 set_to_cap_if_null(ops, socket_create);
1071 set_to_cap_if_null(ops, socket_post_create);
1072 set_to_cap_if_null(ops, socket_bind);
1073 set_to_cap_if_null(ops, socket_connect);
1074 set_to_cap_if_null(ops, socket_listen);
1075 set_to_cap_if_null(ops, socket_accept);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001076 set_to_cap_if_null(ops, socket_sendmsg);
1077 set_to_cap_if_null(ops, socket_recvmsg);
1078 set_to_cap_if_null(ops, socket_getsockname);
1079 set_to_cap_if_null(ops, socket_getpeername);
1080 set_to_cap_if_null(ops, socket_setsockopt);
1081 set_to_cap_if_null(ops, socket_getsockopt);
1082 set_to_cap_if_null(ops, socket_shutdown);
1083 set_to_cap_if_null(ops, socket_sock_rcv_skb);
1084 set_to_cap_if_null(ops, socket_getpeersec_stream);
1085 set_to_cap_if_null(ops, socket_getpeersec_dgram);
1086 set_to_cap_if_null(ops, sk_alloc_security);
1087 set_to_cap_if_null(ops, sk_free_security);
1088 set_to_cap_if_null(ops, sk_clone_security);
1089 set_to_cap_if_null(ops, sk_getsecid);
1090 set_to_cap_if_null(ops, sock_graft);
1091 set_to_cap_if_null(ops, inet_conn_request);
1092 set_to_cap_if_null(ops, inet_csk_clone);
1093 set_to_cap_if_null(ops, inet_conn_established);
Eric Paris2606fd12010-10-13 16:24:41 -04001094 set_to_cap_if_null(ops, secmark_relabel_packet);
1095 set_to_cap_if_null(ops, secmark_refcount_inc);
1096 set_to_cap_if_null(ops, secmark_refcount_dec);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001097 set_to_cap_if_null(ops, req_classify_flow);
Paul Moore5dbbaf22013-01-14 07:12:19 +00001098 set_to_cap_if_null(ops, tun_dev_alloc_security);
1099 set_to_cap_if_null(ops, tun_dev_free_security);
Paul Moore2b980db2009-08-28 18:12:43 -04001100 set_to_cap_if_null(ops, tun_dev_create);
Paul Moore5dbbaf22013-01-14 07:12:19 +00001101 set_to_cap_if_null(ops, tun_dev_open);
1102 set_to_cap_if_null(ops, tun_dev_attach_queue);
Paul Moore2b980db2009-08-28 18:12:43 -04001103 set_to_cap_if_null(ops, tun_dev_attach);
Eric Dumazetca10b9e2013-04-08 17:58:11 +00001104 set_to_cap_if_null(ops, skb_owned_by);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001105#endif /* CONFIG_SECURITY_NETWORK */
1106#ifdef CONFIG_SECURITY_NETWORK_XFRM
1107 set_to_cap_if_null(ops, xfrm_policy_alloc_security);
1108 set_to_cap_if_null(ops, xfrm_policy_clone_security);
1109 set_to_cap_if_null(ops, xfrm_policy_free_security);
1110 set_to_cap_if_null(ops, xfrm_policy_delete_security);
Paul Moore2e5aa862013-07-23 17:38:38 -04001111 set_to_cap_if_null(ops, xfrm_state_alloc);
1112 set_to_cap_if_null(ops, xfrm_state_alloc_acquire);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001113 set_to_cap_if_null(ops, xfrm_state_free_security);
1114 set_to_cap_if_null(ops, xfrm_state_delete_security);
1115 set_to_cap_if_null(ops, xfrm_policy_lookup);
1116 set_to_cap_if_null(ops, xfrm_state_pol_flow_match);
1117 set_to_cap_if_null(ops, xfrm_decode_session);
1118#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1119#ifdef CONFIG_KEYS
1120 set_to_cap_if_null(ops, key_alloc);
1121 set_to_cap_if_null(ops, key_free);
1122 set_to_cap_if_null(ops, key_permission);
1123 set_to_cap_if_null(ops, key_getsecurity);
1124#endif /* CONFIG_KEYS */
1125#ifdef CONFIG_AUDIT
1126 set_to_cap_if_null(ops, audit_rule_init);
1127 set_to_cap_if_null(ops, audit_rule_known);
1128 set_to_cap_if_null(ops, audit_rule_match);
1129 set_to_cap_if_null(ops, audit_rule_free);
1130#endif
1131}