blob: 6e4fc776badf16cf568adcd88386d1fcfeacb8aa [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 Smalley6e6d8f52012-11-05 08:15:34 -050015static int cap_binder_set_context_mgr(struct task_struct *mgr)
16{
17 return 0;
18}
19
20static int cap_binder_transaction(struct task_struct *from, struct task_struct *to)
21{
22 return 0;
23}
24
25static int cap_binder_transfer_binder(struct task_struct *from, struct task_struct *to)
26{
27 return 0;
28}
29
30static int cap_binder_transfer_file(struct task_struct *from, struct task_struct *to, struct file *file)
31{
32 return 0;
33}
34
Eric Paris12b30522010-11-15 18:36:29 -050035static int cap_syslog(int type)
36{
37 return 0;
38}
39
Miklos Szeredi5915eb52008-07-03 20:56:05 +020040static int cap_quotactl(int cmds, int type, int id, struct super_block *sb)
41{
42 return 0;
43}
44
45static int cap_quota_on(struct dentry *dentry)
46{
47 return 0;
48}
49
Chihau Chaudce3a3d2010-07-16 12:11:54 -040050static int cap_bprm_check_security(struct linux_binprm *bprm)
Miklos Szeredi5915eb52008-07-03 20:56:05 +020051{
52 return 0;
53}
54
David Howellsa6f76f22008-11-14 10:39:24 +110055static void cap_bprm_committing_creds(struct linux_binprm *bprm)
Miklos Szeredi5915eb52008-07-03 20:56:05 +020056{
57}
58
David Howellsa6f76f22008-11-14 10:39:24 +110059static void cap_bprm_committed_creds(struct linux_binprm *bprm)
Miklos Szeredi5915eb52008-07-03 20:56:05 +020060{
61}
62
Miklos Szeredi5915eb52008-07-03 20:56:05 +020063static int cap_sb_alloc_security(struct super_block *sb)
64{
65 return 0;
66}
67
68static void cap_sb_free_security(struct super_block *sb)
69{
70}
71
72static int cap_sb_copy_data(char *orig, char *copy)
73{
74 return 0;
75}
76
Eric Parisff36fe22011-03-03 16:09:14 -050077static int cap_sb_remount(struct super_block *sb, void *data)
78{
79 return 0;
80}
81
James Morris12204e22008-12-19 10:44:42 +110082static int cap_sb_kern_mount(struct super_block *sb, int flags, void *data)
Miklos Szeredi5915eb52008-07-03 20:56:05 +020083{
84 return 0;
85}
86
87static int cap_sb_show_options(struct seq_file *m, struct super_block *sb)
88{
89 return 0;
90}
91
92static int cap_sb_statfs(struct dentry *dentry)
93{
94 return 0;
95}
96
Al Viro808d4e32012-10-11 11:42:01 -040097static int cap_sb_mount(const char *dev_name, struct path *path,
98 const char *type, unsigned long flags, void *data)
Miklos Szeredi5915eb52008-07-03 20:56:05 +020099{
100 return 0;
101}
102
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200103static int cap_sb_umount(struct vfsmount *mnt, int flags)
104{
105 return 0;
106}
107
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200108static int cap_sb_pivotroot(struct path *old_path, struct path *new_path)
109{
110 return 0;
111}
112
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200113static int cap_sb_set_mnt_opts(struct super_block *sb,
114 struct security_mnt_opts *opts)
115{
116 if (unlikely(opts->num_mnt_opts))
117 return -EOPNOTSUPP;
118 return 0;
119}
120
Jeff Layton094f7b62013-04-01 08:14:24 -0400121static int cap_sb_clone_mnt_opts(const struct super_block *oldsb,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200122 struct super_block *newsb)
123{
Jeff Layton094f7b62013-04-01 08:14:24 -0400124 return 0;
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200125}
126
127static int cap_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
128{
129 return 0;
130}
131
132static int cap_inode_alloc_security(struct inode *inode)
133{
134 return 0;
135}
136
137static void cap_inode_free_security(struct inode *inode)
138{
139}
140
141static int cap_inode_init_security(struct inode *inode, struct inode *dir,
Eric Paris2a7dba32011-02-01 11:05:39 -0500142 const struct qstr *qstr, char **name,
143 void **value, size_t *len)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200144{
145 return -EOPNOTSUPP;
146}
147
148static int cap_inode_create(struct inode *inode, struct dentry *dentry,
Al Viro4acdaf22011-07-26 01:42:34 -0400149 umode_t mask)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200150{
151 return 0;
152}
153
154static int cap_inode_link(struct dentry *old_dentry, struct inode *inode,
155 struct dentry *new_dentry)
156{
157 return 0;
158}
159
160static int cap_inode_unlink(struct inode *inode, struct dentry *dentry)
161{
162 return 0;
163}
164
165static int cap_inode_symlink(struct inode *inode, struct dentry *dentry,
166 const char *name)
167{
168 return 0;
169}
170
171static int cap_inode_mkdir(struct inode *inode, struct dentry *dentry,
Al Viro18bb1db2011-07-26 01:41:39 -0400172 umode_t mask)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200173{
174 return 0;
175}
176
177static int cap_inode_rmdir(struct inode *inode, struct dentry *dentry)
178{
179 return 0;
180}
181
182static int cap_inode_mknod(struct inode *inode, struct dentry *dentry,
Al Viro1a67aaf2011-07-26 01:52:52 -0400183 umode_t mode, dev_t dev)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200184{
185 return 0;
186}
187
188static int cap_inode_rename(struct inode *old_inode, struct dentry *old_dentry,
189 struct inode *new_inode, struct dentry *new_dentry)
190{
191 return 0;
192}
193
194static int cap_inode_readlink(struct dentry *dentry)
195{
196 return 0;
197}
198
199static int cap_inode_follow_link(struct dentry *dentry,
200 struct nameidata *nameidata)
201{
202 return 0;
203}
204
Al Viroe74f71e2011-06-20 19:38:15 -0400205static int cap_inode_permission(struct inode *inode, int mask)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200206{
207 return 0;
208}
209
210static int cap_inode_setattr(struct dentry *dentry, struct iattr *iattr)
211{
212 return 0;
213}
214
215static int cap_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
216{
217 return 0;
218}
219
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200220static void cap_inode_post_setxattr(struct dentry *dentry, const char *name,
221 const void *value, size_t size, int flags)
222{
223}
224
225static int cap_inode_getxattr(struct dentry *dentry, const char *name)
226{
227 return 0;
228}
229
230static int cap_inode_listxattr(struct dentry *dentry)
231{
232 return 0;
233}
234
235static int cap_inode_getsecurity(const struct inode *inode, const char *name,
236 void **buffer, bool alloc)
237{
238 return -EOPNOTSUPP;
239}
240
241static int cap_inode_setsecurity(struct inode *inode, const char *name,
242 const void *value, size_t size, int flags)
243{
244 return -EOPNOTSUPP;
245}
246
247static int cap_inode_listsecurity(struct inode *inode, char *buffer,
248 size_t buffer_size)
249{
250 return 0;
251}
252
253static void cap_inode_getsecid(const struct inode *inode, u32 *secid)
254{
255 *secid = 0;
256}
257
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900258#ifdef CONFIG_SECURITY_PATH
Al Viro04fc66e2011-11-21 14:58:38 -0500259static int cap_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900260 unsigned int dev)
261{
262 return 0;
263}
264
Al Viro4572bef2011-11-21 14:56:21 -0500265static int cap_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900266{
267 return 0;
268}
269
270static int cap_path_rmdir(struct path *dir, struct dentry *dentry)
271{
272 return 0;
273}
274
275static int cap_path_unlink(struct path *dir, struct dentry *dentry)
276{
277 return 0;
278}
279
280static int cap_path_symlink(struct path *dir, struct dentry *dentry,
281 const char *old_name)
282{
283 return 0;
284}
285
286static int cap_path_link(struct dentry *old_dentry, struct path *new_dir,
287 struct dentry *new_dentry)
288{
289 return 0;
290}
291
292static int cap_path_rename(struct path *old_path, struct dentry *old_dentry,
293 struct path *new_path, struct dentry *new_dentry)
294{
295 return 0;
296}
297
Tetsuo Handaea0d3ab2010-06-02 13:24:43 +0900298static int cap_path_truncate(struct path *path)
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900299{
300 return 0;
301}
Tetsuo Handa89eda062009-10-04 21:49:47 +0900302
Al Virocdcf1162011-12-08 10:51:53 -0500303static int cap_path_chmod(struct path *path, umode_t mode)
Tetsuo Handa89eda062009-10-04 21:49:47 +0900304{
305 return 0;
306}
307
Eric W. Biedermand2b31ca2012-06-01 16:14:19 -0600308static int cap_path_chown(struct path *path, kuid_t uid, kgid_t gid)
Tetsuo Handa89eda062009-10-04 21:49:47 +0900309{
310 return 0;
311}
Tetsuo Handa8b8efb42009-10-04 21:49:48 +0900312
313static int cap_path_chroot(struct path *root)
314{
315 return 0;
316}
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900317#endif
318
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200319static int cap_file_permission(struct file *file, int mask)
320{
321 return 0;
322}
323
324static int cap_file_alloc_security(struct file *file)
325{
326 return 0;
327}
328
329static void cap_file_free_security(struct file *file)
330{
331}
332
333static int cap_file_ioctl(struct file *file, unsigned int command,
334 unsigned long arg)
335{
336 return 0;
337}
338
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200339static int cap_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
340 unsigned long prot)
341{
342 return 0;
343}
344
345static int cap_file_lock(struct file *file, unsigned int cmd)
346{
347 return 0;
348}
349
350static int cap_file_fcntl(struct file *file, unsigned int cmd,
351 unsigned long arg)
352{
353 return 0;
354}
355
356static int cap_file_set_fowner(struct file *file)
357{
358 return 0;
359}
360
361static int cap_file_send_sigiotask(struct task_struct *tsk,
362 struct fown_struct *fown, int sig)
363{
364 return 0;
365}
366
367static int cap_file_receive(struct file *file)
368{
369 return 0;
370}
371
Eric Paris83d49852012-04-04 13:45:40 -0400372static int cap_file_open(struct file *file, const struct cred *cred)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200373{
374 return 0;
375}
376
377static int cap_task_create(unsigned long clone_flags)
378{
379 return 0;
380}
381
Kees Cook1a2a4d02011-12-21 12:17:03 -0800382static void cap_task_free(struct task_struct *task)
383{
384}
385
David Howellsee18d642009-09-02 09:14:21 +0100386static int cap_cred_alloc_blank(struct cred *cred, gfp_t gfp)
387{
388 return 0;
389}
390
David Howellsd84f4f92008-11-14 10:39:23 +1100391static void cap_cred_free(struct cred *cred)
392{
393}
394
395static int cap_cred_prepare(struct cred *new, const struct cred *old, gfp_t gfp)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200396{
397 return 0;
398}
399
David Howellsee18d642009-09-02 09:14:21 +0100400static void cap_cred_transfer(struct cred *new, const struct cred *old)
401{
402}
403
David Howells3a3b7ce2008-11-14 10:39:28 +1100404static int cap_kernel_act_as(struct cred *new, u32 secid)
405{
406 return 0;
407}
408
409static int cap_kernel_create_files_as(struct cred *new, struct inode *inode)
410{
411 return 0;
412}
413
Eric Parisdd8dbf22009-11-03 16:35:32 +1100414static int cap_kernel_module_request(char *kmod_name)
Eric Paris91884992009-08-13 09:44:57 -0400415{
416 return 0;
417}
418
Kees Cook2e72d512012-10-16 07:32:07 +1030419static int cap_kernel_module_from_file(struct file *file)
420{
421 return 0;
422}
423
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200424static int cap_task_setpgid(struct task_struct *p, pid_t pgid)
425{
426 return 0;
427}
428
429static int cap_task_getpgid(struct task_struct *p)
430{
431 return 0;
432}
433
434static int cap_task_getsid(struct task_struct *p)
435{
436 return 0;
437}
438
439static void cap_task_getsecid(struct task_struct *p, u32 *secid)
440{
441 *secid = 0;
442}
443
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200444static int cap_task_getioprio(struct task_struct *p)
445{
446 return 0;
447}
448
Jiri Slaby8fd00b42009-08-26 18:41:16 +0200449static int cap_task_setrlimit(struct task_struct *p, unsigned int resource,
450 struct rlimit *new_rlim)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200451{
452 return 0;
453}
454
455static int cap_task_getscheduler(struct task_struct *p)
456{
457 return 0;
458}
459
460static int cap_task_movememory(struct task_struct *p)
461{
462 return 0;
463}
464
465static int cap_task_wait(struct task_struct *p)
466{
467 return 0;
468}
469
470static int cap_task_kill(struct task_struct *p, struct siginfo *info,
471 int sig, u32 secid)
472{
473 return 0;
474}
475
476static void cap_task_to_inode(struct task_struct *p, struct inode *inode)
477{
478}
479
480static int cap_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
481{
482 return 0;
483}
484
485static void cap_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
486{
487 *secid = 0;
488}
489
490static int cap_msg_msg_alloc_security(struct msg_msg *msg)
491{
492 return 0;
493}
494
495static void cap_msg_msg_free_security(struct msg_msg *msg)
496{
497}
498
499static int cap_msg_queue_alloc_security(struct msg_queue *msq)
500{
501 return 0;
502}
503
504static void cap_msg_queue_free_security(struct msg_queue *msq)
505{
506}
507
508static int cap_msg_queue_associate(struct msg_queue *msq, int msqflg)
509{
510 return 0;
511}
512
513static int cap_msg_queue_msgctl(struct msg_queue *msq, int cmd)
514{
515 return 0;
516}
517
518static int cap_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
519 int msgflg)
520{
521 return 0;
522}
523
524static int cap_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
525 struct task_struct *target, long type, int mode)
526{
527 return 0;
528}
529
530static int cap_shm_alloc_security(struct shmid_kernel *shp)
531{
532 return 0;
533}
534
535static void cap_shm_free_security(struct shmid_kernel *shp)
536{
537}
538
539static int cap_shm_associate(struct shmid_kernel *shp, int shmflg)
540{
541 return 0;
542}
543
544static int cap_shm_shmctl(struct shmid_kernel *shp, int cmd)
545{
546 return 0;
547}
548
549static int cap_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr,
550 int shmflg)
551{
552 return 0;
553}
554
555static int cap_sem_alloc_security(struct sem_array *sma)
556{
557 return 0;
558}
559
560static void cap_sem_free_security(struct sem_array *sma)
561{
562}
563
564static int cap_sem_associate(struct sem_array *sma, int semflg)
565{
566 return 0;
567}
568
569static int cap_sem_semctl(struct sem_array *sma, int cmd)
570{
571 return 0;
572}
573
574static int cap_sem_semop(struct sem_array *sma, struct sembuf *sops,
575 unsigned nsops, int alter)
576{
577 return 0;
578}
579
580#ifdef CONFIG_SECURITY_NETWORK
David S. Miller3610cda2011-01-05 15:38:53 -0800581static int cap_unix_stream_connect(struct sock *sock, struct sock *other,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200582 struct sock *newsk)
583{
584 return 0;
585}
586
587static int cap_unix_may_send(struct socket *sock, struct socket *other)
588{
589 return 0;
590}
591
592static int cap_socket_create(int family, int type, int protocol, int kern)
593{
594 return 0;
595}
596
597static int cap_socket_post_create(struct socket *sock, int family, int type,
598 int protocol, int kern)
599{
600 return 0;
601}
602
603static int cap_socket_bind(struct socket *sock, struct sockaddr *address,
604 int addrlen)
605{
606 return 0;
607}
608
609static int cap_socket_connect(struct socket *sock, struct sockaddr *address,
610 int addrlen)
611{
612 return 0;
613}
614
615static int cap_socket_listen(struct socket *sock, int backlog)
616{
617 return 0;
618}
619
620static int cap_socket_accept(struct socket *sock, struct socket *newsock)
621{
622 return 0;
623}
624
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200625static int cap_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
626{
627 return 0;
628}
629
630static int cap_socket_recvmsg(struct socket *sock, struct msghdr *msg,
631 int size, int flags)
632{
633 return 0;
634}
635
636static int cap_socket_getsockname(struct socket *sock)
637{
638 return 0;
639}
640
641static int cap_socket_getpeername(struct socket *sock)
642{
643 return 0;
644}
645
646static int cap_socket_setsockopt(struct socket *sock, int level, int optname)
647{
648 return 0;
649}
650
651static int cap_socket_getsockopt(struct socket *sock, int level, int optname)
652{
653 return 0;
654}
655
656static int cap_socket_shutdown(struct socket *sock, int how)
657{
658 return 0;
659}
660
661static int cap_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
662{
663 return 0;
664}
665
666static int cap_socket_getpeersec_stream(struct socket *sock,
667 char __user *optval,
668 int __user *optlen, unsigned len)
669{
670 return -ENOPROTOOPT;
671}
672
673static int cap_socket_getpeersec_dgram(struct socket *sock,
674 struct sk_buff *skb, u32 *secid)
675{
676 return -ENOPROTOOPT;
677}
678
679static int cap_sk_alloc_security(struct sock *sk, int family, gfp_t priority)
680{
681 return 0;
682}
683
684static void cap_sk_free_security(struct sock *sk)
685{
686}
687
688static void cap_sk_clone_security(const struct sock *sk, struct sock *newsk)
689{
690}
691
692static void cap_sk_getsecid(struct sock *sk, u32 *secid)
693{
694}
695
696static void cap_sock_graft(struct sock *sk, struct socket *parent)
697{
698}
699
700static int cap_inet_conn_request(struct sock *sk, struct sk_buff *skb,
701 struct request_sock *req)
702{
703 return 0;
704}
705
706static void cap_inet_csk_clone(struct sock *newsk,
707 const struct request_sock *req)
708{
709}
710
711static void cap_inet_conn_established(struct sock *sk, struct sk_buff *skb)
712{
713}
714
Eric Paris2606fd12010-10-13 16:24:41 -0400715static int cap_secmark_relabel_packet(u32 secid)
716{
717 return 0;
718}
Paul Moore2b980db2009-08-28 18:12:43 -0400719
Eric Paris2606fd12010-10-13 16:24:41 -0400720static void cap_secmark_refcount_inc(void)
721{
722}
723
724static void cap_secmark_refcount_dec(void)
725{
726}
Paul Moore2b980db2009-08-28 18:12:43 -0400727
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200728static void cap_req_classify_flow(const struct request_sock *req,
729 struct flowi *fl)
730{
731}
Paul Moore2b980db2009-08-28 18:12:43 -0400732
Paul Moore5dbbaf22013-01-14 07:12:19 +0000733static int cap_tun_dev_alloc_security(void **security)
734{
735 return 0;
736}
737
738static void cap_tun_dev_free_security(void *security)
739{
740}
741
Paul Moore2b980db2009-08-28 18:12:43 -0400742static int cap_tun_dev_create(void)
743{
744 return 0;
745}
746
Paul Moore5dbbaf22013-01-14 07:12:19 +0000747static int cap_tun_dev_attach_queue(void *security)
Paul Moore2b980db2009-08-28 18:12:43 -0400748{
Paul Moore5dbbaf22013-01-14 07:12:19 +0000749 return 0;
Paul Moore2b980db2009-08-28 18:12:43 -0400750}
751
Paul Moore5dbbaf22013-01-14 07:12:19 +0000752static int cap_tun_dev_attach(struct sock *sk, void *security)
753{
754 return 0;
755}
756
757static int cap_tun_dev_open(void *security)
Paul Moore2b980db2009-08-28 18:12:43 -0400758{
759 return 0;
760}
Eric Dumazetca10b9e2013-04-08 17:58:11 +0000761
762static void cap_skb_owned_by(struct sk_buff *skb, struct sock *sk)
763{
764}
765
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200766#endif /* CONFIG_SECURITY_NETWORK */
767
768#ifdef CONFIG_SECURITY_NETWORK_XFRM
769static int cap_xfrm_policy_alloc_security(struct xfrm_sec_ctx **ctxp,
770 struct xfrm_user_sec_ctx *sec_ctx)
771{
772 return 0;
773}
774
775static int cap_xfrm_policy_clone_security(struct xfrm_sec_ctx *old_ctx,
776 struct xfrm_sec_ctx **new_ctxp)
777{
778 return 0;
779}
780
781static void cap_xfrm_policy_free_security(struct xfrm_sec_ctx *ctx)
782{
783}
784
785static int cap_xfrm_policy_delete_security(struct xfrm_sec_ctx *ctx)
786{
787 return 0;
788}
789
790static int cap_xfrm_state_alloc_security(struct xfrm_state *x,
791 struct xfrm_user_sec_ctx *sec_ctx,
792 u32 secid)
793{
794 return 0;
795}
796
797static void cap_xfrm_state_free_security(struct xfrm_state *x)
798{
799}
800
801static int cap_xfrm_state_delete_security(struct xfrm_state *x)
802{
803 return 0;
804}
805
806static int cap_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 sk_sid, u8 dir)
807{
808 return 0;
809}
810
811static int cap_xfrm_state_pol_flow_match(struct xfrm_state *x,
812 struct xfrm_policy *xp,
David S. Millere33f7702011-02-22 18:13:15 -0800813 const struct flowi *fl)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200814{
815 return 1;
816}
817
818static int cap_xfrm_decode_session(struct sk_buff *skb, u32 *fl, int ckall)
819{
820 return 0;
821}
822
823#endif /* CONFIG_SECURITY_NETWORK_XFRM */
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200824static void cap_d_instantiate(struct dentry *dentry, struct inode *inode)
825{
826}
827
828static int cap_getprocattr(struct task_struct *p, char *name, char **value)
829{
830 return -EINVAL;
831}
832
833static int cap_setprocattr(struct task_struct *p, char *name, void *value,
834 size_t size)
835{
836 return -EINVAL;
837}
838
839static int cap_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
840{
841 return -EOPNOTSUPP;
842}
843
844static int cap_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
845{
Eric Paris2606fd12010-10-13 16:24:41 -0400846 *secid = 0;
847 return 0;
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200848}
849
850static void cap_release_secctx(char *secdata, u32 seclen)
851{
852}
853
David P. Quigley1ee65e32009-09-03 14:25:57 -0400854static int cap_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
855{
856 return 0;
857}
858
859static int cap_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
860{
861 return 0;
862}
863
864static int cap_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
865{
866 return 0;
867}
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200868#ifdef CONFIG_KEYS
David Howellsd84f4f92008-11-14 10:39:23 +1100869static int cap_key_alloc(struct key *key, const struct cred *cred,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200870 unsigned long flags)
871{
872 return 0;
873}
874
875static void cap_key_free(struct key *key)
876{
877}
878
David Howellsd84f4f92008-11-14 10:39:23 +1100879static int cap_key_permission(key_ref_t key_ref, const struct cred *cred,
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200880 key_perm_t perm)
881{
882 return 0;
883}
884
885static int cap_key_getsecurity(struct key *key, char **_buffer)
886{
887 *_buffer = NULL;
888 return 0;
889}
890
891#endif /* CONFIG_KEYS */
892
893#ifdef CONFIG_AUDIT
894static int cap_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
895{
896 return 0;
897}
898
899static int cap_audit_rule_known(struct audit_krule *krule)
900{
901 return 0;
902}
903
904static int cap_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
905 struct audit_context *actx)
906{
907 return 0;
908}
909
910static void cap_audit_rule_free(void *lsmrule)
911{
912}
913#endif /* CONFIG_AUDIT */
914
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200915#define set_to_cap_if_null(ops, function) \
916 do { \
917 if (!ops->function) { \
918 ops->function = cap_##function; \
919 pr_debug("Had to override the " #function \
920 " security operation with the default.\n");\
921 } \
922 } while (0)
923
Tetsuo Handac80901f2010-05-14 12:01:26 +0900924void __init security_fixup_ops(struct security_operations *ops)
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200925{
Stephen Smalley6e6d8f52012-11-05 08:15:34 -0500926 set_to_cap_if_null(ops, binder_set_context_mgr);
927 set_to_cap_if_null(ops, binder_transaction);
928 set_to_cap_if_null(ops, binder_transfer_binder);
929 set_to_cap_if_null(ops, binder_transfer_file);
Ingo Molnar9e488582009-05-07 19:26:19 +1000930 set_to_cap_if_null(ops, ptrace_access_check);
David Howells5cd9c582008-08-14 11:37:28 +0100931 set_to_cap_if_null(ops, ptrace_traceme);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200932 set_to_cap_if_null(ops, capget);
David Howellsd84f4f92008-11-14 10:39:23 +1100933 set_to_cap_if_null(ops, capset);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200934 set_to_cap_if_null(ops, capable);
935 set_to_cap_if_null(ops, quotactl);
936 set_to_cap_if_null(ops, quota_on);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200937 set_to_cap_if_null(ops, syslog);
938 set_to_cap_if_null(ops, settime);
939 set_to_cap_if_null(ops, vm_enough_memory);
David Howellsa6f76f22008-11-14 10:39:24 +1100940 set_to_cap_if_null(ops, bprm_set_creds);
941 set_to_cap_if_null(ops, bprm_committing_creds);
942 set_to_cap_if_null(ops, bprm_committed_creds);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200943 set_to_cap_if_null(ops, bprm_check_security);
944 set_to_cap_if_null(ops, bprm_secureexec);
945 set_to_cap_if_null(ops, sb_alloc_security);
946 set_to_cap_if_null(ops, sb_free_security);
947 set_to_cap_if_null(ops, sb_copy_data);
Eric Parisff36fe22011-03-03 16:09:14 -0500948 set_to_cap_if_null(ops, sb_remount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200949 set_to_cap_if_null(ops, sb_kern_mount);
950 set_to_cap_if_null(ops, sb_show_options);
951 set_to_cap_if_null(ops, sb_statfs);
952 set_to_cap_if_null(ops, sb_mount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200953 set_to_cap_if_null(ops, sb_umount);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200954 set_to_cap_if_null(ops, sb_pivotroot);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200955 set_to_cap_if_null(ops, sb_set_mnt_opts);
956 set_to_cap_if_null(ops, sb_clone_mnt_opts);
957 set_to_cap_if_null(ops, sb_parse_opts_str);
958 set_to_cap_if_null(ops, inode_alloc_security);
959 set_to_cap_if_null(ops, inode_free_security);
960 set_to_cap_if_null(ops, inode_init_security);
961 set_to_cap_if_null(ops, inode_create);
962 set_to_cap_if_null(ops, inode_link);
963 set_to_cap_if_null(ops, inode_unlink);
964 set_to_cap_if_null(ops, inode_symlink);
965 set_to_cap_if_null(ops, inode_mkdir);
966 set_to_cap_if_null(ops, inode_rmdir);
967 set_to_cap_if_null(ops, inode_mknod);
968 set_to_cap_if_null(ops, inode_rename);
969 set_to_cap_if_null(ops, inode_readlink);
970 set_to_cap_if_null(ops, inode_follow_link);
971 set_to_cap_if_null(ops, inode_permission);
972 set_to_cap_if_null(ops, inode_setattr);
973 set_to_cap_if_null(ops, inode_getattr);
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200974 set_to_cap_if_null(ops, inode_setxattr);
975 set_to_cap_if_null(ops, inode_post_setxattr);
976 set_to_cap_if_null(ops, inode_getxattr);
977 set_to_cap_if_null(ops, inode_listxattr);
978 set_to_cap_if_null(ops, inode_removexattr);
979 set_to_cap_if_null(ops, inode_need_killpriv);
980 set_to_cap_if_null(ops, inode_killpriv);
981 set_to_cap_if_null(ops, inode_getsecurity);
982 set_to_cap_if_null(ops, inode_setsecurity);
983 set_to_cap_if_null(ops, inode_listsecurity);
984 set_to_cap_if_null(ops, inode_getsecid);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900985#ifdef CONFIG_SECURITY_PATH
986 set_to_cap_if_null(ops, path_mknod);
987 set_to_cap_if_null(ops, path_mkdir);
988 set_to_cap_if_null(ops, path_rmdir);
989 set_to_cap_if_null(ops, path_unlink);
990 set_to_cap_if_null(ops, path_symlink);
991 set_to_cap_if_null(ops, path_link);
992 set_to_cap_if_null(ops, path_rename);
993 set_to_cap_if_null(ops, path_truncate);
Tetsuo Handa89eda062009-10-04 21:49:47 +0900994 set_to_cap_if_null(ops, path_chmod);
995 set_to_cap_if_null(ops, path_chown);
Tetsuo Handa8b8efb42009-10-04 21:49:48 +0900996 set_to_cap_if_null(ops, path_chroot);
Kentaro Takedabe6d3e52008-12-17 13:24:15 +0900997#endif
Miklos Szeredi5915eb52008-07-03 20:56:05 +0200998 set_to_cap_if_null(ops, file_permission);
999 set_to_cap_if_null(ops, file_alloc_security);
1000 set_to_cap_if_null(ops, file_free_security);
1001 set_to_cap_if_null(ops, file_ioctl);
Al Viroe5467852012-05-30 13:30:51 -04001002 set_to_cap_if_null(ops, mmap_addr);
1003 set_to_cap_if_null(ops, mmap_file);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001004 set_to_cap_if_null(ops, file_mprotect);
1005 set_to_cap_if_null(ops, file_lock);
1006 set_to_cap_if_null(ops, file_fcntl);
1007 set_to_cap_if_null(ops, file_set_fowner);
1008 set_to_cap_if_null(ops, file_send_sigiotask);
1009 set_to_cap_if_null(ops, file_receive);
Eric Paris83d49852012-04-04 13:45:40 -04001010 set_to_cap_if_null(ops, file_open);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001011 set_to_cap_if_null(ops, task_create);
Kees Cook1a2a4d02011-12-21 12:17:03 -08001012 set_to_cap_if_null(ops, task_free);
David Howellsee18d642009-09-02 09:14:21 +01001013 set_to_cap_if_null(ops, cred_alloc_blank);
David Howellsf1752ee2008-11-14 10:39:17 +11001014 set_to_cap_if_null(ops, cred_free);
David Howellsd84f4f92008-11-14 10:39:23 +11001015 set_to_cap_if_null(ops, cred_prepare);
David Howellsee18d642009-09-02 09:14:21 +01001016 set_to_cap_if_null(ops, cred_transfer);
David Howells3a3b7ce2008-11-14 10:39:28 +11001017 set_to_cap_if_null(ops, kernel_act_as);
1018 set_to_cap_if_null(ops, kernel_create_files_as);
Eric Paris91884992009-08-13 09:44:57 -04001019 set_to_cap_if_null(ops, kernel_module_request);
Kees Cook2e72d512012-10-16 07:32:07 +10301020 set_to_cap_if_null(ops, kernel_module_from_file);
David Howellsd84f4f92008-11-14 10:39:23 +11001021 set_to_cap_if_null(ops, task_fix_setuid);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001022 set_to_cap_if_null(ops, task_setpgid);
1023 set_to_cap_if_null(ops, task_getpgid);
1024 set_to_cap_if_null(ops, task_getsid);
1025 set_to_cap_if_null(ops, task_getsecid);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001026 set_to_cap_if_null(ops, task_setnice);
1027 set_to_cap_if_null(ops, task_setioprio);
1028 set_to_cap_if_null(ops, task_getioprio);
1029 set_to_cap_if_null(ops, task_setrlimit);
1030 set_to_cap_if_null(ops, task_setscheduler);
1031 set_to_cap_if_null(ops, task_getscheduler);
1032 set_to_cap_if_null(ops, task_movememory);
1033 set_to_cap_if_null(ops, task_wait);
1034 set_to_cap_if_null(ops, task_kill);
1035 set_to_cap_if_null(ops, task_prctl);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001036 set_to_cap_if_null(ops, task_to_inode);
1037 set_to_cap_if_null(ops, ipc_permission);
1038 set_to_cap_if_null(ops, ipc_getsecid);
1039 set_to_cap_if_null(ops, msg_msg_alloc_security);
1040 set_to_cap_if_null(ops, msg_msg_free_security);
1041 set_to_cap_if_null(ops, msg_queue_alloc_security);
1042 set_to_cap_if_null(ops, msg_queue_free_security);
1043 set_to_cap_if_null(ops, msg_queue_associate);
1044 set_to_cap_if_null(ops, msg_queue_msgctl);
1045 set_to_cap_if_null(ops, msg_queue_msgsnd);
1046 set_to_cap_if_null(ops, msg_queue_msgrcv);
1047 set_to_cap_if_null(ops, shm_alloc_security);
1048 set_to_cap_if_null(ops, shm_free_security);
1049 set_to_cap_if_null(ops, shm_associate);
1050 set_to_cap_if_null(ops, shm_shmctl);
1051 set_to_cap_if_null(ops, shm_shmat);
1052 set_to_cap_if_null(ops, sem_alloc_security);
1053 set_to_cap_if_null(ops, sem_free_security);
1054 set_to_cap_if_null(ops, sem_associate);
1055 set_to_cap_if_null(ops, sem_semctl);
1056 set_to_cap_if_null(ops, sem_semop);
1057 set_to_cap_if_null(ops, netlink_send);
Miklos Szeredi5915eb52008-07-03 20:56:05 +02001058 set_to_cap_if_null(ops, d_instantiate);
1059 set_to_cap_if_null(ops, getprocattr);
1060 set_to_cap_if_null(ops, setprocattr);
1061 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);
1111 set_to_cap_if_null(ops, xfrm_state_alloc_security);
1112 set_to_cap_if_null(ops, xfrm_state_free_security);
1113 set_to_cap_if_null(ops, xfrm_state_delete_security);
1114 set_to_cap_if_null(ops, xfrm_policy_lookup);
1115 set_to_cap_if_null(ops, xfrm_state_pol_flow_match);
1116 set_to_cap_if_null(ops, xfrm_decode_session);
1117#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1118#ifdef CONFIG_KEYS
1119 set_to_cap_if_null(ops, key_alloc);
1120 set_to_cap_if_null(ops, key_free);
1121 set_to_cap_if_null(ops, key_permission);
1122 set_to_cap_if_null(ops, key_getsecurity);
1123#endif /* CONFIG_KEYS */
1124#ifdef CONFIG_AUDIT
1125 set_to_cap_if_null(ops, audit_rule_init);
1126 set_to_cap_if_null(ops, audit_rule_known);
1127 set_to_cap_if_null(ops, audit_rule_match);
1128 set_to_cap_if_null(ops, audit_rule_free);
1129#endif
1130}