blob: 7d3f38fe02ba6ca7d75446c6d20e41c049b17b00 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Capabilities Linux Security Module
3 *
Miklos Szeredi5915eb52008-07-03 20:56:05 +02004 * This is the default security module in case no other module is loaded.
5 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07006 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 */
12
Linus Torvalds1da177e2005-04-16 15:20:36 -070013#include <linux/security.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070014
Stephen Smalley79af7302015-01-21 10:54:10 -050015static int cap_binder_set_context_mgr(struct task_struct *mgr)
16{
17 return 0;
18}
19
20static int cap_binder_transaction(struct task_struct *from,
21 struct task_struct *to)
22{
23 return 0;
24}
25
26static int cap_binder_transfer_binder(struct task_struct *from,
27 struct task_struct *to)
28{
29 return 0;
30}
31
32static int cap_binder_transfer_file(struct task_struct *from,
33 struct task_struct *to, struct file *file)
34{
35 return 0;
36}
37
Eric Paris12b30522010-11-15 18:36:29 -050038static int cap_syslog(int type)
39{
40 return 0;
41}
42
Miklos Szeredi5915eb52008-07-03 20:56:05 +020043static int cap_quotactl(int cmds, int type, int id, struct super_block *sb)
44{
45 return 0;
46}
47
48static int cap_quota_on(struct dentry *dentry)
49{
50 return 0;
51}
52
Chihau Chaudce3a3d2010-07-16 12:11:54 -040053static int cap_bprm_check_security(struct linux_binprm *bprm)
Miklos Szeredi5915eb52008-07-03 20:56:05 +020054{
55 return 0;
56}
57
David Howellsa6f76f22008-11-14 10:39:24 +110058static void cap_bprm_committing_creds(struct linux_binprm *bprm)
Miklos Szeredi5915eb52008-07-03 20:56:05 +020059{
60}
61
David Howellsa6f76f22008-11-14 10:39:24 +110062static void cap_bprm_committed_creds(struct linux_binprm *bprm)
Miklos Szeredi5915eb52008-07-03 20:56:05 +020063{
64}
65
Miklos Szeredi5915eb52008-07-03 20:56:05 +020066static int cap_sb_alloc_security(struct super_block *sb)
67{
68 return 0;
69}
70
71static void cap_sb_free_security(struct super_block *sb)
72{
73}
74
75static int cap_sb_copy_data(char *orig, char *copy)
76{
77 return 0;
78}
79
Eric Parisff36fe22011-03-03 16:09:14 -050080static int cap_sb_remount(struct super_block *sb, void *data)
81{
82 return 0;
83}
84
James Morris12204e22008-12-19 10:44:42 +110085static int cap_sb_kern_mount(struct super_block *sb, int flags, void *data)
Miklos Szeredi5915eb52008-07-03 20:56:05 +020086{
87 return 0;
88}
89
90static int cap_sb_show_options(struct seq_file *m, struct super_block *sb)
91{
92 return 0;
93}
94
95static int cap_sb_statfs(struct dentry *dentry)
96{
97 return 0;
98}
99
Al Viro808d4e32012-10-11 11:42:01 -0400100static int cap_sb_mount(const char *dev_name, struct path *path,
101 const char *type, unsigned long flags, void *data)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200102{
103 return 0;
104}
105
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200106static int cap_sb_umount(struct vfsmount *mnt, int flags)
107{
108 return 0;
109}
110
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200111static int cap_sb_pivotroot(struct path *old_path, struct path *new_path)
112{
113 return 0;
114}
115
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200116static int cap_sb_set_mnt_opts(struct super_block *sb,
David Quigley649f6e72013-05-22 12:50:36 -0400117 struct security_mnt_opts *opts,
118 unsigned long kern_flags,
119 unsigned long *set_kern_flags)
120
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200121{
122 if (unlikely(opts->num_mnt_opts))
123 return -EOPNOTSUPP;
124 return 0;
125}
126
Jeff Layton094f7b62013-04-01 08:14:24 -0400127static int cap_sb_clone_mnt_opts(const struct super_block *oldsb,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200128 struct super_block *newsb)
129{
Jeff Layton094f7b62013-04-01 08:14:24 -0400130 return 0;
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200131}
132
133static int cap_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
134{
135 return 0;
136}
137
David Quigleyd47be3d2013-05-22 12:50:34 -0400138static int cap_dentry_init_security(struct dentry *dentry, int mode,
139 struct qstr *name, void **ctx,
140 u32 *ctxlen)
141{
Jeff Laytond4a141c2014-03-05 12:47:37 -0500142 return -EOPNOTSUPP;
David Quigleyd47be3d2013-05-22 12:50:34 -0400143}
144
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200145static int cap_inode_alloc_security(struct inode *inode)
146{
147 return 0;
148}
149
150static void cap_inode_free_security(struct inode *inode)
151{
152}
153
154static int cap_inode_init_security(struct inode *inode, struct inode *dir,
Tetsuo Handa95489062013-07-25 05:44:02 +0900155 const struct qstr *qstr, const char **name,
Eric Paris2a7dba32011-02-01 11:05:39 -0500156 void **value, size_t *len)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200157{
158 return -EOPNOTSUPP;
159}
160
161static int cap_inode_create(struct inode *inode, struct dentry *dentry,
Al Viro4acdaf22011-07-26 01:42:34 -0400162 umode_t mask)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200163{
164 return 0;
165}
166
167static int cap_inode_link(struct dentry *old_dentry, struct inode *inode,
168 struct dentry *new_dentry)
169{
170 return 0;
171}
172
173static int cap_inode_unlink(struct inode *inode, struct dentry *dentry)
174{
175 return 0;
176}
177
178static int cap_inode_symlink(struct inode *inode, struct dentry *dentry,
179 const char *name)
180{
181 return 0;
182}
183
184static int cap_inode_mkdir(struct inode *inode, struct dentry *dentry,
Al Viro18bb1db2011-07-26 01:41:39 -0400185 umode_t mask)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200186{
187 return 0;
188}
189
190static int cap_inode_rmdir(struct inode *inode, struct dentry *dentry)
191{
192 return 0;
193}
194
195static int cap_inode_mknod(struct inode *inode, struct dentry *dentry,
Al Viro1a67aaf2011-07-26 01:52:52 -0400196 umode_t mode, dev_t dev)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200197{
198 return 0;
199}
200
201static int cap_inode_rename(struct inode *old_inode, struct dentry *old_dentry,
202 struct inode *new_inode, struct dentry *new_dentry)
203{
204 return 0;
205}
206
207static int cap_inode_readlink(struct dentry *dentry)
208{
209 return 0;
210}
211
NeilBrownbda0be72015-03-23 13:37:39 +1100212static int cap_inode_follow_link(struct dentry *dentry, struct inode *inode,
213 bool rcu)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200214{
215 return 0;
216}
217
Al Viroe74f71e2011-06-20 19:38:15 -0400218static int cap_inode_permission(struct inode *inode, int mask)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200219{
220 return 0;
221}
222
223static int cap_inode_setattr(struct dentry *dentry, struct iattr *iattr)
224{
225 return 0;
226}
227
Al Viro3f7036a2015-03-08 19:28:30 -0400228static int cap_inode_getattr(const struct path *path)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200229{
230 return 0;
231}
232
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200233static void cap_inode_post_setxattr(struct dentry *dentry, const char *name,
234 const void *value, size_t size, int flags)
235{
236}
237
238static int cap_inode_getxattr(struct dentry *dentry, const char *name)
239{
240 return 0;
241}
242
243static int cap_inode_listxattr(struct dentry *dentry)
244{
245 return 0;
246}
247
248static int cap_inode_getsecurity(const struct inode *inode, const char *name,
249 void **buffer, bool alloc)
250{
251 return -EOPNOTSUPP;
252}
253
254static int cap_inode_setsecurity(struct inode *inode, const char *name,
255 const void *value, size_t size, int flags)
256{
257 return -EOPNOTSUPP;
258}
259
260static int cap_inode_listsecurity(struct inode *inode, char *buffer,
261 size_t buffer_size)
262{
263 return 0;
264}
265
266static void cap_inode_getsecid(const struct inode *inode, u32 *secid)
267{
268 *secid = 0;
269}
270
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900271#ifdef CONFIG_SECURITY_PATH
Al Viro04fc66e2011-11-21 14:58:38 -0500272static int cap_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900273 unsigned int dev)
274{
275 return 0;
276}
277
Al Viro4572bef2011-11-21 14:56:21 -0500278static int cap_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900279{
280 return 0;
281}
282
283static int cap_path_rmdir(struct path *dir, struct dentry *dentry)
284{
285 return 0;
286}
287
288static int cap_path_unlink(struct path *dir, struct dentry *dentry)
289{
290 return 0;
291}
292
293static int cap_path_symlink(struct path *dir, struct dentry *dentry,
294 const char *old_name)
295{
296 return 0;
297}
298
299static int cap_path_link(struct dentry *old_dentry, struct path *new_dir,
300 struct dentry *new_dentry)
301{
302 return 0;
303}
304
305static int cap_path_rename(struct path *old_path, struct dentry *old_dentry,
306 struct path *new_path, struct dentry *new_dentry)
307{
308 return 0;
309}
310
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +0900311static int cap_path_truncate(struct path *path)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900312{
313 return 0;
314}
Tetsuo Handa89eda062009-10-04 21:49:47 +0900315
Al Virocdcf1162011-12-08 10:51:53 -0500316static int cap_path_chmod(struct path *path, umode_t mode)
Tetsuo Handa89eda062009-10-04 21:49:47 +0900317{
318 return 0;
319}
320
Eric W. Biedermand2b31ca2012-06-01 16:14:19 -0600321static int cap_path_chown(struct path *path, kuid_t uid, kgid_t gid)
Tetsuo Handa89eda062009-10-04 21:49:47 +0900322{
323 return 0;
324}
Tetsuo Handa8b8efb42009-10-04 21:49:48 +0900325
326static int cap_path_chroot(struct path *root)
327{
328 return 0;
329}
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900330#endif
331
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200332static int cap_file_permission(struct file *file, int mask)
333{
334 return 0;
335}
336
337static int cap_file_alloc_security(struct file *file)
338{
339 return 0;
340}
341
342static void cap_file_free_security(struct file *file)
343{
344}
345
346static int cap_file_ioctl(struct file *file, unsigned int command,
347 unsigned long arg)
348{
349 return 0;
350}
351
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200352static int cap_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
353 unsigned long prot)
354{
355 return 0;
356}
357
358static int cap_file_lock(struct file *file, unsigned int cmd)
359{
360 return 0;
361}
362
363static int cap_file_fcntl(struct file *file, unsigned int cmd,
364 unsigned long arg)
365{
366 return 0;
367}
368
Jeff Laytone0b93ed2014-08-22 11:27:32 -0400369static void cap_file_set_fowner(struct file *file)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200370{
Jeff Laytone0b93ed2014-08-22 11:27:32 -0400371 return;
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200372}
373
374static int cap_file_send_sigiotask(struct task_struct *tsk,
375 struct fown_struct *fown, int sig)
376{
377 return 0;
378}
379
380static int cap_file_receive(struct file *file)
381{
382 return 0;
383}
384
Eric Paris83d49852012-04-04 13:45:40 -0400385static int cap_file_open(struct file *file, const struct cred *cred)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200386{
387 return 0;
388}
389
390static int cap_task_create(unsigned long clone_flags)
391{
392 return 0;
393}
394
Kees Cook1a2a4d02011-12-21 12:17:03 -0800395static void cap_task_free(struct task_struct *task)
396{
397}
398
David Howellsee18d642009-09-02 09:14:21 +0100399static int cap_cred_alloc_blank(struct cred *cred, gfp_t gfp)
400{
401 return 0;
402}
403
David Howellsd84f4f92008-11-14 10:39:23 +1100404static void cap_cred_free(struct cred *cred)
405{
406}
407
408static int cap_cred_prepare(struct cred *new, const struct cred *old, gfp_t gfp)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200409{
410 return 0;
411}
412
David Howellsee18d642009-09-02 09:14:21 +0100413static void cap_cred_transfer(struct cred *new, const struct cred *old)
414{
415}
416
David Howells3a3b7ce2008-11-14 10:39:28 +1100417static int cap_kernel_act_as(struct cred *new, u32 secid)
418{
419 return 0;
420}
421
422static int cap_kernel_create_files_as(struct cred *new, struct inode *inode)
423{
424 return 0;
425}
426
Kees Cook13752fe2014-02-25 10:28:04 -0800427static int cap_kernel_fw_from_file(struct file *file, char *buf, size_t size)
428{
429 return 0;
430}
431
Eric Parisdd8dbf22009-11-03 16:35:32 +1100432static int cap_kernel_module_request(char *kmod_name)
Eric Paris91884992009-08-13 09:44:57 -0400433{
434 return 0;
435}
436
Kees Cook2e72d512012-10-16 07:32:07 +1030437static int cap_kernel_module_from_file(struct file *file)
438{
439 return 0;
440}
441
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200442static int cap_task_setpgid(struct task_struct *p, pid_t pgid)
443{
444 return 0;
445}
446
447static int cap_task_getpgid(struct task_struct *p)
448{
449 return 0;
450}
451
452static int cap_task_getsid(struct task_struct *p)
453{
454 return 0;
455}
456
457static void cap_task_getsecid(struct task_struct *p, u32 *secid)
458{
459 *secid = 0;
460}
461
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200462static int cap_task_getioprio(struct task_struct *p)
463{
464 return 0;
465}
466
Jiri Slaby8fd00b42009-08-26 18:41:16 +0200467static int cap_task_setrlimit(struct task_struct *p, unsigned int resource,
468 struct rlimit *new_rlim)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200469{
470 return 0;
471}
472
473static int cap_task_getscheduler(struct task_struct *p)
474{
475 return 0;
476}
477
478static int cap_task_movememory(struct task_struct *p)
479{
480 return 0;
481}
482
483static int cap_task_wait(struct task_struct *p)
484{
485 return 0;
486}
487
488static int cap_task_kill(struct task_struct *p, struct siginfo *info,
489 int sig, u32 secid)
490{
491 return 0;
492}
493
494static void cap_task_to_inode(struct task_struct *p, struct inode *inode)
495{
496}
497
498static int cap_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
499{
500 return 0;
501}
502
503static void cap_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
504{
505 *secid = 0;
506}
507
508static int cap_msg_msg_alloc_security(struct msg_msg *msg)
509{
510 return 0;
511}
512
513static void cap_msg_msg_free_security(struct msg_msg *msg)
514{
515}
516
517static int cap_msg_queue_alloc_security(struct msg_queue *msq)
518{
519 return 0;
520}
521
522static void cap_msg_queue_free_security(struct msg_queue *msq)
523{
524}
525
526static int cap_msg_queue_associate(struct msg_queue *msq, int msqflg)
527{
528 return 0;
529}
530
531static int cap_msg_queue_msgctl(struct msg_queue *msq, int cmd)
532{
533 return 0;
534}
535
536static int cap_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
537 int msgflg)
538{
539 return 0;
540}
541
542static int cap_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
543 struct task_struct *target, long type, int mode)
544{
545 return 0;
546}
547
548static int cap_shm_alloc_security(struct shmid_kernel *shp)
549{
550 return 0;
551}
552
553static void cap_shm_free_security(struct shmid_kernel *shp)
554{
555}
556
557static int cap_shm_associate(struct shmid_kernel *shp, int shmflg)
558{
559 return 0;
560}
561
562static int cap_shm_shmctl(struct shmid_kernel *shp, int cmd)
563{
564 return 0;
565}
566
567static int cap_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr,
568 int shmflg)
569{
570 return 0;
571}
572
573static int cap_sem_alloc_security(struct sem_array *sma)
574{
575 return 0;
576}
577
578static void cap_sem_free_security(struct sem_array *sma)
579{
580}
581
582static int cap_sem_associate(struct sem_array *sma, int semflg)
583{
584 return 0;
585}
586
587static int cap_sem_semctl(struct sem_array *sma, int cmd)
588{
589 return 0;
590}
591
592static int cap_sem_semop(struct sem_array *sma, struct sembuf *sops,
593 unsigned nsops, int alter)
594{
595 return 0;
596}
597
598#ifdef CONFIG_SECURITY_NETWORK
David S. Miller3610cda2011-01-05 15:38:53 -0800599static int cap_unix_stream_connect(struct sock *sock, struct sock *other,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200600 struct sock *newsk)
601{
602 return 0;
603}
604
605static int cap_unix_may_send(struct socket *sock, struct socket *other)
606{
607 return 0;
608}
609
610static int cap_socket_create(int family, int type, int protocol, int kern)
611{
612 return 0;
613}
614
615static int cap_socket_post_create(struct socket *sock, int family, int type,
616 int protocol, int kern)
617{
618 return 0;
619}
620
621static int cap_socket_bind(struct socket *sock, struct sockaddr *address,
622 int addrlen)
623{
624 return 0;
625}
626
627static int cap_socket_connect(struct socket *sock, struct sockaddr *address,
628 int addrlen)
629{
630 return 0;
631}
632
633static int cap_socket_listen(struct socket *sock, int backlog)
634{
635 return 0;
636}
637
638static int cap_socket_accept(struct socket *sock, struct socket *newsock)
639{
640 return 0;
641}
642
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200643static int cap_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
644{
645 return 0;
646}
647
648static int cap_socket_recvmsg(struct socket *sock, struct msghdr *msg,
649 int size, int flags)
650{
651 return 0;
652}
653
654static int cap_socket_getsockname(struct socket *sock)
655{
656 return 0;
657}
658
659static int cap_socket_getpeername(struct socket *sock)
660{
661 return 0;
662}
663
664static int cap_socket_setsockopt(struct socket *sock, int level, int optname)
665{
666 return 0;
667}
668
669static int cap_socket_getsockopt(struct socket *sock, int level, int optname)
670{
671 return 0;
672}
673
674static int cap_socket_shutdown(struct socket *sock, int how)
675{
676 return 0;
677}
678
679static int cap_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
680{
681 return 0;
682}
683
684static int cap_socket_getpeersec_stream(struct socket *sock,
685 char __user *optval,
686 int __user *optlen, unsigned len)
687{
688 return -ENOPROTOOPT;
689}
690
691static int cap_socket_getpeersec_dgram(struct socket *sock,
692 struct sk_buff *skb, u32 *secid)
693{
694 return -ENOPROTOOPT;
695}
696
697static int cap_sk_alloc_security(struct sock *sk, int family, gfp_t priority)
698{
699 return 0;
700}
701
702static void cap_sk_free_security(struct sock *sk)
703{
704}
705
706static void cap_sk_clone_security(const struct sock *sk, struct sock *newsk)
707{
708}
709
710static void cap_sk_getsecid(struct sock *sk, u32 *secid)
711{
712}
713
714static void cap_sock_graft(struct sock *sk, struct socket *parent)
715{
716}
717
718static int cap_inet_conn_request(struct sock *sk, struct sk_buff *skb,
719 struct request_sock *req)
720{
721 return 0;
722}
723
724static void cap_inet_csk_clone(struct sock *newsk,
725 const struct request_sock *req)
726{
727}
728
729static void cap_inet_conn_established(struct sock *sk, struct sk_buff *skb)
730{
731}
732
Eric Paris2606fd12010-10-13 16:24:41 -0400733static int cap_secmark_relabel_packet(u32 secid)
734{
735 return 0;
736}
Paul Moore2b980db2009-08-28 18:12:43 -0400737
Eric Paris2606fd12010-10-13 16:24:41 -0400738static void cap_secmark_refcount_inc(void)
739{
740}
741
742static void cap_secmark_refcount_dec(void)
743{
744}
Paul Moore2b980db2009-08-28 18:12:43 -0400745
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200746static void cap_req_classify_flow(const struct request_sock *req,
747 struct flowi *fl)
748{
749}
Paul Moore2b980db2009-08-28 18:12:43 -0400750
Paul Moore5dbbaf22013-01-14 07:12:19 +0000751static int cap_tun_dev_alloc_security(void **security)
752{
753 return 0;
754}
755
756static void cap_tun_dev_free_security(void *security)
757{
758}
759
Paul Moore2b980db2009-08-28 18:12:43 -0400760static int cap_tun_dev_create(void)
761{
762 return 0;
763}
764
Paul Moore5dbbaf22013-01-14 07:12:19 +0000765static int cap_tun_dev_attach_queue(void *security)
Paul Moore2b980db2009-08-28 18:12:43 -0400766{
Paul Moore5dbbaf22013-01-14 07:12:19 +0000767 return 0;
Paul Moore2b980db2009-08-28 18:12:43 -0400768}
769
Paul Moore5dbbaf22013-01-14 07:12:19 +0000770static int cap_tun_dev_attach(struct sock *sk, void *security)
771{
772 return 0;
773}
774
775static int cap_tun_dev_open(void *security)
Paul Moore2b980db2009-08-28 18:12:43 -0400776{
777 return 0;
778}
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200779#endif /* CONFIG_SECURITY_NETWORK */
780
781#ifdef CONFIG_SECURITY_NETWORK_XFRM
782static int cap_xfrm_policy_alloc_security(struct xfrm_sec_ctx **ctxp,
Nikolay Aleksandrov52a4c642014-03-07 12:44:19 +0100783 struct xfrm_user_sec_ctx *sec_ctx,
784 gfp_t gfp)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200785{
786 return 0;
787}
788
789static int cap_xfrm_policy_clone_security(struct xfrm_sec_ctx *old_ctx,
790 struct xfrm_sec_ctx **new_ctxp)
791{
792 return 0;
793}
794
795static void cap_xfrm_policy_free_security(struct xfrm_sec_ctx *ctx)
796{
797}
798
799static int cap_xfrm_policy_delete_security(struct xfrm_sec_ctx *ctx)
800{
801 return 0;
802}
803
Paul Moore2e5aa862013-07-23 17:38:38 -0400804static int cap_xfrm_state_alloc(struct xfrm_state *x,
805 struct xfrm_user_sec_ctx *sec_ctx)
806{
807 return 0;
808}
809
810static int cap_xfrm_state_alloc_acquire(struct xfrm_state *x,
811 struct xfrm_sec_ctx *polsec,
812 u32 secid)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200813{
814 return 0;
815}
816
817static void cap_xfrm_state_free_security(struct xfrm_state *x)
818{
819}
820
821static int cap_xfrm_state_delete_security(struct xfrm_state *x)
822{
823 return 0;
824}
825
826static int cap_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 sk_sid, u8 dir)
827{
828 return 0;
829}
830
831static int cap_xfrm_state_pol_flow_match(struct xfrm_state *x,
832 struct xfrm_policy *xp,
David S. Millere33f7702011-02-22 18:13:15 -0800833 const struct flowi *fl)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200834{
835 return 1;
836}
837
838static int cap_xfrm_decode_session(struct sk_buff *skb, u32 *fl, int ckall)
839{
840 return 0;
841}
842
843#endif /* CONFIG_SECURITY_NETWORK_XFRM */
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200844static void cap_d_instantiate(struct dentry *dentry, struct inode *inode)
845{
846}
847
848static int cap_getprocattr(struct task_struct *p, char *name, char **value)
849{
850 return -EINVAL;
851}
852
853static int cap_setprocattr(struct task_struct *p, char *name, void *value,
854 size_t size)
855{
856 return -EINVAL;
857}
858
David Quigley746df9b2013-05-22 12:50:35 -0400859static int cap_ismaclabel(const char *name)
860{
861 return 0;
862}
863
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200864static int cap_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
865{
866 return -EOPNOTSUPP;
867}
868
869static int cap_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
870{
Eric Paris2606fd12010-10-13 16:24:41 -0400871 *secid = 0;
872 return 0;
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200873}
874
875static void cap_release_secctx(char *secdata, u32 seclen)
876{
877}
878
David P. Quigley1ee65e32009-09-03 14:25:57 -0400879static int cap_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
880{
881 return 0;
882}
883
884static int cap_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
885{
886 return 0;
887}
888
889static int cap_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
890{
J. Bruce Fields0d422af2013-05-08 18:05:41 -0400891 return -EOPNOTSUPP;
David P. Quigley1ee65e32009-09-03 14:25:57 -0400892}
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200893#ifdef CONFIG_KEYS
David Howellsd84f4f92008-11-14 10:39:23 +1100894static int cap_key_alloc(struct key *key, const struct cred *cred,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200895 unsigned long flags)
896{
897 return 0;
898}
899
900static void cap_key_free(struct key *key)
901{
902}
903
David Howellsd84f4f92008-11-14 10:39:23 +1100904static int cap_key_permission(key_ref_t key_ref, const struct cred *cred,
David Howellsf5895942014-03-14 17:44:49 +0000905 unsigned perm)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200906{
907 return 0;
908}
909
910static int cap_key_getsecurity(struct key *key, char **_buffer)
911{
912 *_buffer = NULL;
913 return 0;
914}
915
916#endif /* CONFIG_KEYS */
917
918#ifdef CONFIG_AUDIT
919static int cap_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
920{
921 return 0;
922}
923
924static int cap_audit_rule_known(struct audit_krule *krule)
925{
926 return 0;
927}
928
929static int cap_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
930 struct audit_context *actx)
931{
932 return 0;
933}
934
935static void cap_audit_rule_free(void *lsmrule)
936{
937}
938#endif /* CONFIG_AUDIT */
939
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200940#define set_to_cap_if_null(ops, function) \
941 do { \
942 if (!ops->function) { \
943 ops->function = cap_##function; \
944 pr_debug("Had to override the " #function \
945 " security operation with the default.\n");\
946 } \
947 } while (0)
948
Tetsuo Handac80901f2010-05-14 12:01:26 +0900949void __init security_fixup_ops(struct security_operations *ops)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200950{
Stephen Smalley79af7302015-01-21 10:54:10 -0500951 set_to_cap_if_null(ops, binder_set_context_mgr);
952 set_to_cap_if_null(ops, binder_transaction);
953 set_to_cap_if_null(ops, binder_transfer_binder);
954 set_to_cap_if_null(ops, binder_transfer_file);
Ingo Molnar9e488582009-05-07 19:26:19 +1000955 set_to_cap_if_null(ops, ptrace_access_check);
David Howells5cd9c582008-08-14 11:37:28 +0100956 set_to_cap_if_null(ops, ptrace_traceme);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200957 set_to_cap_if_null(ops, capget);
David Howellsd84f4f92008-11-14 10:39:23 +1100958 set_to_cap_if_null(ops, capset);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200959 set_to_cap_if_null(ops, capable);
960 set_to_cap_if_null(ops, quotactl);
961 set_to_cap_if_null(ops, quota_on);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200962 set_to_cap_if_null(ops, syslog);
963 set_to_cap_if_null(ops, settime);
964 set_to_cap_if_null(ops, vm_enough_memory);
David Howellsa6f76f22008-11-14 10:39:24 +1100965 set_to_cap_if_null(ops, bprm_set_creds);
966 set_to_cap_if_null(ops, bprm_committing_creds);
967 set_to_cap_if_null(ops, bprm_committed_creds);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200968 set_to_cap_if_null(ops, bprm_check_security);
969 set_to_cap_if_null(ops, bprm_secureexec);
970 set_to_cap_if_null(ops, sb_alloc_security);
971 set_to_cap_if_null(ops, sb_free_security);
972 set_to_cap_if_null(ops, sb_copy_data);
Eric Parisff36fe22011-03-03 16:09:14 -0500973 set_to_cap_if_null(ops, sb_remount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200974 set_to_cap_if_null(ops, sb_kern_mount);
975 set_to_cap_if_null(ops, sb_show_options);
976 set_to_cap_if_null(ops, sb_statfs);
977 set_to_cap_if_null(ops, sb_mount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200978 set_to_cap_if_null(ops, sb_umount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200979 set_to_cap_if_null(ops, sb_pivotroot);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200980 set_to_cap_if_null(ops, sb_set_mnt_opts);
981 set_to_cap_if_null(ops, sb_clone_mnt_opts);
982 set_to_cap_if_null(ops, sb_parse_opts_str);
David Quigleyd47be3d2013-05-22 12:50:34 -0400983 set_to_cap_if_null(ops, dentry_init_security);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200984 set_to_cap_if_null(ops, inode_alloc_security);
985 set_to_cap_if_null(ops, inode_free_security);
986 set_to_cap_if_null(ops, inode_init_security);
987 set_to_cap_if_null(ops, inode_create);
988 set_to_cap_if_null(ops, inode_link);
989 set_to_cap_if_null(ops, inode_unlink);
990 set_to_cap_if_null(ops, inode_symlink);
991 set_to_cap_if_null(ops, inode_mkdir);
992 set_to_cap_if_null(ops, inode_rmdir);
993 set_to_cap_if_null(ops, inode_mknod);
994 set_to_cap_if_null(ops, inode_rename);
995 set_to_cap_if_null(ops, inode_readlink);
996 set_to_cap_if_null(ops, inode_follow_link);
997 set_to_cap_if_null(ops, inode_permission);
998 set_to_cap_if_null(ops, inode_setattr);
999 set_to_cap_if_null(ops, inode_getattr);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001000 set_to_cap_if_null(ops, inode_setxattr);
1001 set_to_cap_if_null(ops, inode_post_setxattr);
1002 set_to_cap_if_null(ops, inode_getxattr);
1003 set_to_cap_if_null(ops, inode_listxattr);
1004 set_to_cap_if_null(ops, inode_removexattr);
1005 set_to_cap_if_null(ops, inode_need_killpriv);
1006 set_to_cap_if_null(ops, inode_killpriv);
1007 set_to_cap_if_null(ops, inode_getsecurity);
1008 set_to_cap_if_null(ops, inode_setsecurity);
1009 set_to_cap_if_null(ops, inode_listsecurity);
1010 set_to_cap_if_null(ops, inode_getsecid);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09001011#ifdef CONFIG_SECURITY_PATH
1012 set_to_cap_if_null(ops, path_mknod);
1013 set_to_cap_if_null(ops, path_mkdir);
1014 set_to_cap_if_null(ops, path_rmdir);
1015 set_to_cap_if_null(ops, path_unlink);
1016 set_to_cap_if_null(ops, path_symlink);
1017 set_to_cap_if_null(ops, path_link);
1018 set_to_cap_if_null(ops, path_rename);
1019 set_to_cap_if_null(ops, path_truncate);
Tetsuo Handa89eda062009-10-04 21:49:47 +09001020 set_to_cap_if_null(ops, path_chmod);
1021 set_to_cap_if_null(ops, path_chown);
Tetsuo Handa8b8efb42009-10-04 21:49:48 +09001022 set_to_cap_if_null(ops, path_chroot);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +09001023#endif
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001024 set_to_cap_if_null(ops, file_permission);
1025 set_to_cap_if_null(ops, file_alloc_security);
1026 set_to_cap_if_null(ops, file_free_security);
1027 set_to_cap_if_null(ops, file_ioctl);
Al Viroe5467852012-05-30 13:30:51 -04001028 set_to_cap_if_null(ops, mmap_addr);
1029 set_to_cap_if_null(ops, mmap_file);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001030 set_to_cap_if_null(ops, file_mprotect);
1031 set_to_cap_if_null(ops, file_lock);
1032 set_to_cap_if_null(ops, file_fcntl);
1033 set_to_cap_if_null(ops, file_set_fowner);
1034 set_to_cap_if_null(ops, file_send_sigiotask);
1035 set_to_cap_if_null(ops, file_receive);
Eric Paris83d49852012-04-04 13:45:40 -04001036 set_to_cap_if_null(ops, file_open);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001037 set_to_cap_if_null(ops, task_create);
Kees Cook1a2a4d02011-12-21 12:17:03 -08001038 set_to_cap_if_null(ops, task_free);
David Howellsee18d642009-09-02 09:14:21 +01001039 set_to_cap_if_null(ops, cred_alloc_blank);
David Howellsf1752ee2008-11-14 10:39:17 +11001040 set_to_cap_if_null(ops, cred_free);
David Howellsd84f4f92008-11-14 10:39:23 +11001041 set_to_cap_if_null(ops, cred_prepare);
David Howellsee18d642009-09-02 09:14:21 +01001042 set_to_cap_if_null(ops, cred_transfer);
David Howells3a3b7ce2008-11-14 10:39:28 +11001043 set_to_cap_if_null(ops, kernel_act_as);
1044 set_to_cap_if_null(ops, kernel_create_files_as);
Kees Cook13752fe2014-02-25 10:28:04 -08001045 set_to_cap_if_null(ops, kernel_fw_from_file);
Eric Paris91884992009-08-13 09:44:57 -04001046 set_to_cap_if_null(ops, kernel_module_request);
Kees Cook2e72d512012-10-16 07:32:07 +10301047 set_to_cap_if_null(ops, kernel_module_from_file);
David Howellsd84f4f92008-11-14 10:39:23 +11001048 set_to_cap_if_null(ops, task_fix_setuid);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001049 set_to_cap_if_null(ops, task_setpgid);
1050 set_to_cap_if_null(ops, task_getpgid);
1051 set_to_cap_if_null(ops, task_getsid);
1052 set_to_cap_if_null(ops, task_getsecid);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001053 set_to_cap_if_null(ops, task_setnice);
1054 set_to_cap_if_null(ops, task_setioprio);
1055 set_to_cap_if_null(ops, task_getioprio);
1056 set_to_cap_if_null(ops, task_setrlimit);
1057 set_to_cap_if_null(ops, task_setscheduler);
1058 set_to_cap_if_null(ops, task_getscheduler);
1059 set_to_cap_if_null(ops, task_movememory);
1060 set_to_cap_if_null(ops, task_wait);
1061 set_to_cap_if_null(ops, task_kill);
1062 set_to_cap_if_null(ops, task_prctl);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001063 set_to_cap_if_null(ops, task_to_inode);
1064 set_to_cap_if_null(ops, ipc_permission);
1065 set_to_cap_if_null(ops, ipc_getsecid);
1066 set_to_cap_if_null(ops, msg_msg_alloc_security);
1067 set_to_cap_if_null(ops, msg_msg_free_security);
1068 set_to_cap_if_null(ops, msg_queue_alloc_security);
1069 set_to_cap_if_null(ops, msg_queue_free_security);
1070 set_to_cap_if_null(ops, msg_queue_associate);
1071 set_to_cap_if_null(ops, msg_queue_msgctl);
1072 set_to_cap_if_null(ops, msg_queue_msgsnd);
1073 set_to_cap_if_null(ops, msg_queue_msgrcv);
1074 set_to_cap_if_null(ops, shm_alloc_security);
1075 set_to_cap_if_null(ops, shm_free_security);
1076 set_to_cap_if_null(ops, shm_associate);
1077 set_to_cap_if_null(ops, shm_shmctl);
1078 set_to_cap_if_null(ops, shm_shmat);
1079 set_to_cap_if_null(ops, sem_alloc_security);
1080 set_to_cap_if_null(ops, sem_free_security);
1081 set_to_cap_if_null(ops, sem_associate);
1082 set_to_cap_if_null(ops, sem_semctl);
1083 set_to_cap_if_null(ops, sem_semop);
1084 set_to_cap_if_null(ops, netlink_send);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001085 set_to_cap_if_null(ops, d_instantiate);
1086 set_to_cap_if_null(ops, getprocattr);
1087 set_to_cap_if_null(ops, setprocattr);
David Quigley746df9b2013-05-22 12:50:35 -04001088 set_to_cap_if_null(ops, ismaclabel);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001089 set_to_cap_if_null(ops, secid_to_secctx);
1090 set_to_cap_if_null(ops, secctx_to_secid);
1091 set_to_cap_if_null(ops, release_secctx);
David P. Quigley1ee65e32009-09-03 14:25:57 -04001092 set_to_cap_if_null(ops, inode_notifysecctx);
1093 set_to_cap_if_null(ops, inode_setsecctx);
1094 set_to_cap_if_null(ops, inode_getsecctx);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001095#ifdef CONFIG_SECURITY_NETWORK
1096 set_to_cap_if_null(ops, unix_stream_connect);
1097 set_to_cap_if_null(ops, unix_may_send);
1098 set_to_cap_if_null(ops, socket_create);
1099 set_to_cap_if_null(ops, socket_post_create);
1100 set_to_cap_if_null(ops, socket_bind);
1101 set_to_cap_if_null(ops, socket_connect);
1102 set_to_cap_if_null(ops, socket_listen);
1103 set_to_cap_if_null(ops, socket_accept);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001104 set_to_cap_if_null(ops, socket_sendmsg);
1105 set_to_cap_if_null(ops, socket_recvmsg);
1106 set_to_cap_if_null(ops, socket_getsockname);
1107 set_to_cap_if_null(ops, socket_getpeername);
1108 set_to_cap_if_null(ops, socket_setsockopt);
1109 set_to_cap_if_null(ops, socket_getsockopt);
1110 set_to_cap_if_null(ops, socket_shutdown);
1111 set_to_cap_if_null(ops, socket_sock_rcv_skb);
1112 set_to_cap_if_null(ops, socket_getpeersec_stream);
1113 set_to_cap_if_null(ops, socket_getpeersec_dgram);
1114 set_to_cap_if_null(ops, sk_alloc_security);
1115 set_to_cap_if_null(ops, sk_free_security);
1116 set_to_cap_if_null(ops, sk_clone_security);
1117 set_to_cap_if_null(ops, sk_getsecid);
1118 set_to_cap_if_null(ops, sock_graft);
1119 set_to_cap_if_null(ops, inet_conn_request);
1120 set_to_cap_if_null(ops, inet_csk_clone);
1121 set_to_cap_if_null(ops, inet_conn_established);
Eric Paris2606fd12010-10-13 16:24:41 -04001122 set_to_cap_if_null(ops, secmark_relabel_packet);
1123 set_to_cap_if_null(ops, secmark_refcount_inc);
1124 set_to_cap_if_null(ops, secmark_refcount_dec);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001125 set_to_cap_if_null(ops, req_classify_flow);
Paul Moore5dbbaf22013-01-14 07:12:19 +00001126 set_to_cap_if_null(ops, tun_dev_alloc_security);
1127 set_to_cap_if_null(ops, tun_dev_free_security);
Paul Moore2b980db2009-08-28 18:12:43 -04001128 set_to_cap_if_null(ops, tun_dev_create);
Paul Moore5dbbaf22013-01-14 07:12:19 +00001129 set_to_cap_if_null(ops, tun_dev_open);
1130 set_to_cap_if_null(ops, tun_dev_attach_queue);
Paul Moore2b980db2009-08-28 18:12:43 -04001131 set_to_cap_if_null(ops, tun_dev_attach);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001132#endif /* CONFIG_SECURITY_NETWORK */
1133#ifdef CONFIG_SECURITY_NETWORK_XFRM
1134 set_to_cap_if_null(ops, xfrm_policy_alloc_security);
1135 set_to_cap_if_null(ops, xfrm_policy_clone_security);
1136 set_to_cap_if_null(ops, xfrm_policy_free_security);
1137 set_to_cap_if_null(ops, xfrm_policy_delete_security);
Paul Moore2e5aa862013-07-23 17:38:38 -04001138 set_to_cap_if_null(ops, xfrm_state_alloc);
1139 set_to_cap_if_null(ops, xfrm_state_alloc_acquire);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001140 set_to_cap_if_null(ops, xfrm_state_free_security);
1141 set_to_cap_if_null(ops, xfrm_state_delete_security);
1142 set_to_cap_if_null(ops, xfrm_policy_lookup);
1143 set_to_cap_if_null(ops, xfrm_state_pol_flow_match);
1144 set_to_cap_if_null(ops, xfrm_decode_session);
1145#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1146#ifdef CONFIG_KEYS
1147 set_to_cap_if_null(ops, key_alloc);
1148 set_to_cap_if_null(ops, key_free);
1149 set_to_cap_if_null(ops, key_permission);
1150 set_to_cap_if_null(ops, key_getsecurity);
1151#endif /* CONFIG_KEYS */
1152#ifdef CONFIG_AUDIT
1153 set_to_cap_if_null(ops, audit_rule_init);
1154 set_to_cap_if_null(ops, audit_rule_known);
1155 set_to_cap_if_null(ops, audit_rule_match);
1156 set_to_cap_if_null(ops, audit_rule_free);
1157#endif
1158}