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1/*
2 * Capabilities Linux Security Module
3 *
4 * This is the default security module in case no other module is loaded.
5 *
6 * 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
13#include <linux/security.h>
14
15static int cap_syslog(int type)
16{
17 return 0;
18}
19
20static 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
30static int cap_bprm_check_security(struct linux_binprm *bprm)
31{
32 return 0;
33}
34
35static void cap_bprm_committing_creds(struct linux_binprm *bprm)
36{
37}
38
39static void cap_bprm_committed_creds(struct linux_binprm *bprm)
40{
41}
42
43static 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
57static int cap_sb_remount(struct super_block *sb, void *data)
58{
59 return 0;
60}
61
62static int cap_sb_kern_mount(struct super_block *sb, int flags, void *data)
63{
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
77static int cap_sb_mount(char *dev_name, struct path *path, char *type,
78 unsigned long flags, void *data)
79{
80 return 0;
81}
82
83static int cap_sb_umount(struct vfsmount *mnt, int flags)
84{
85 return 0;
86}
87
88static int cap_sb_pivotroot(struct path *old_path, struct path *new_path)
89{
90 return 0;
91}
92
93static int cap_sb_set_mnt_opts(struct super_block *sb,
94 struct security_mnt_opts *opts)
95{
96 if (unlikely(opts->num_mnt_opts))
97 return -EOPNOTSUPP;
98 return 0;
99}
100
101static void cap_sb_clone_mnt_opts(const struct super_block *oldsb,
102 struct super_block *newsb)
103{
104}
105
106static int cap_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
107{
108 return 0;
109}
110
111static int cap_inode_alloc_security(struct inode *inode)
112{
113 return 0;
114}
115
116static void cap_inode_free_security(struct inode *inode)
117{
118}
119
120static int cap_inode_init_security(struct inode *inode, struct inode *dir,
121 const struct qstr *qstr, char **name,
122 void **value, size_t *len)
123{
124 return -EOPNOTSUPP;
125}
126
127static int cap_inode_create(struct inode *inode, struct dentry *dentry,
128 umode_t mask)
129{
130 return 0;
131}
132
133static int cap_inode_link(struct dentry *old_dentry, struct inode *inode,
134 struct dentry *new_dentry)
135{
136 return 0;
137}
138
139static int cap_inode_unlink(struct inode *inode, struct dentry *dentry)
140{
141 return 0;
142}
143
144static int cap_inode_symlink(struct inode *inode, struct dentry *dentry,
145 const char *name)
146{
147 return 0;
148}
149
150static int cap_inode_mkdir(struct inode *inode, struct dentry *dentry,
151 umode_t mask)
152{
153 return 0;
154}
155
156static int cap_inode_rmdir(struct inode *inode, struct dentry *dentry)
157{
158 return 0;
159}
160
161static int cap_inode_mknod(struct inode *inode, struct dentry *dentry,
162 umode_t mode, dev_t dev)
163{
164 return 0;
165}
166
167static int cap_inode_rename(struct inode *old_inode, struct dentry *old_dentry,
168 struct inode *new_inode, struct dentry *new_dentry)
169{
170 return 0;
171}
172
173static int cap_inode_readlink(struct dentry *dentry)
174{
175 return 0;
176}
177
178static int cap_inode_follow_link(struct dentry *dentry,
179 struct nameidata *nameidata)
180{
181 return 0;
182}
183
184static int cap_inode_permission(struct inode *inode, int mask)
185{
186 return 0;
187}
188
189static int cap_inode_setattr(struct dentry *dentry, struct iattr *iattr)
190{
191 return 0;
192}
193
194static int cap_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
195{
196 return 0;
197}
198
199static void cap_inode_post_setxattr(struct dentry *dentry, const char *name,
200 const void *value, size_t size, int flags)
201{
202}
203
204static int cap_inode_getxattr(struct dentry *dentry, const char *name)
205{
206 return 0;
207}
208
209static int cap_inode_listxattr(struct dentry *dentry)
210{
211 return 0;
212}
213
214static int cap_inode_getsecurity(const struct inode *inode, const char *name,
215 void **buffer, bool alloc)
216{
217 return -EOPNOTSUPP;
218}
219
220static int cap_inode_setsecurity(struct inode *inode, const char *name,
221 const void *value, size_t size, int flags)
222{
223 return -EOPNOTSUPP;
224}
225
226static int cap_inode_listsecurity(struct inode *inode, char *buffer,
227 size_t buffer_size)
228{
229 return 0;
230}
231
232static void cap_inode_getsecid(const struct inode *inode, u32 *secid)
233{
234 *secid = 0;
235}
236
237#ifdef CONFIG_SECURITY_PATH
238static int cap_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
239 unsigned int dev)
240{
241 return 0;
242}
243
244static int cap_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
245{
246 return 0;
247}
248
249static int cap_path_rmdir(struct path *dir, struct dentry *dentry)
250{
251 return 0;
252}
253
254static int cap_path_unlink(struct path *dir, struct dentry *dentry)
255{
256 return 0;
257}
258
259static int cap_path_symlink(struct path *dir, struct dentry *dentry,
260 const char *old_name)
261{
262 return 0;
263}
264
265static int cap_path_link(struct dentry *old_dentry, struct path *new_dir,
266 struct dentry *new_dentry)
267{
268 return 0;
269}
270
271static int cap_path_rename(struct path *old_path, struct dentry *old_dentry,
272 struct path *new_path, struct dentry *new_dentry)
273{
274 return 0;
275}
276
277static int cap_path_truncate(struct path *path)
278{
279 return 0;
280}
281
282static int cap_path_chmod(struct path *path, umode_t mode)
283{
284 return 0;
285}
286
287static int cap_path_chown(struct path *path, uid_t uid, gid_t gid)
288{
289 return 0;
290}
291
292static int cap_path_chroot(struct path *root)
293{
294 return 0;
295}
296#endif
297
298static int cap_file_permission(struct file *file, int mask)
299{
300 return 0;
301}
302
303static int cap_file_alloc_security(struct file *file)
304{
305 return 0;
306}
307
308static void cap_file_free_security(struct file *file)
309{
310}
311
312static int cap_file_ioctl(struct file *file, unsigned int command,
313 unsigned long arg)
314{
315 return 0;
316}
317
318static int cap_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
319 unsigned long prot)
320{
321 return 0;
322}
323
324static int cap_file_lock(struct file *file, unsigned int cmd)
325{
326 return 0;
327}
328
329static int cap_file_fcntl(struct file *file, unsigned int cmd,
330 unsigned long arg)
331{
332 return 0;
333}
334
335static int cap_file_set_fowner(struct file *file)
336{
337 return 0;
338}
339
340static int cap_file_send_sigiotask(struct task_struct *tsk,
341 struct fown_struct *fown, int sig)
342{
343 return 0;
344}
345
346static int cap_file_receive(struct file *file)
347{
348 return 0;
349}
350
351static int cap_file_open(struct file *file, const struct cred *cred)
352{
353 return 0;
354}
355
356static int cap_task_create(unsigned long clone_flags)
357{
358 return 0;
359}
360
361static void cap_task_free(struct task_struct *task)
362{
363}
364
365static int cap_cred_alloc_blank(struct cred *cred, gfp_t gfp)
366{
367 return 0;
368}
369
370static void cap_cred_free(struct cred *cred)
371{
372}
373
374static int cap_cred_prepare(struct cred *new, const struct cred *old, gfp_t gfp)
375{
376 return 0;
377}
378
379static void cap_cred_transfer(struct cred *new, const struct cred *old)
380{
381}
382
383static int cap_kernel_act_as(struct cred *new, u32 secid)
384{
385 return 0;
386}
387
388static int cap_kernel_create_files_as(struct cred *new, struct inode *inode)
389{
390 return 0;
391}
392
393static int cap_kernel_module_request(char *kmod_name)
394{
395 return 0;
396}
397
398static int cap_task_setpgid(struct task_struct *p, pid_t pgid)
399{
400 return 0;
401}
402
403static int cap_task_getpgid(struct task_struct *p)
404{
405 return 0;
406}
407
408static int cap_task_getsid(struct task_struct *p)
409{
410 return 0;
411}
412
413static void cap_task_getsecid(struct task_struct *p, u32 *secid)
414{
415 *secid = 0;
416}
417
418static int cap_task_getioprio(struct task_struct *p)
419{
420 return 0;
421}
422
423static int cap_task_setrlimit(struct task_struct *p, unsigned int resource,
424 struct rlimit *new_rlim)
425{
426 return 0;
427}
428
429static int cap_task_getscheduler(struct task_struct *p)
430{
431 return 0;
432}
433
434static int cap_task_movememory(struct task_struct *p)
435{
436 return 0;
437}
438
439static int cap_task_wait(struct task_struct *p)
440{
441 return 0;
442}
443
444static int cap_task_kill(struct task_struct *p, struct siginfo *info,
445 int sig, u32 secid)
446{
447 return 0;
448}
449
450static void cap_task_to_inode(struct task_struct *p, struct inode *inode)
451{
452}
453
454static int cap_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
455{
456 return 0;
457}
458
459static void cap_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
460{
461 *secid = 0;
462}
463
464static int cap_msg_msg_alloc_security(struct msg_msg *msg)
465{
466 return 0;
467}
468
469static void cap_msg_msg_free_security(struct msg_msg *msg)
470{
471}
472
473static int cap_msg_queue_alloc_security(struct msg_queue *msq)
474{
475 return 0;
476}
477
478static void cap_msg_queue_free_security(struct msg_queue *msq)
479{
480}
481
482static int cap_msg_queue_associate(struct msg_queue *msq, int msqflg)
483{
484 return 0;
485}
486
487static int cap_msg_queue_msgctl(struct msg_queue *msq, int cmd)
488{
489 return 0;
490}
491
492static int cap_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
493 int msgflg)
494{
495 return 0;
496}
497
498static int cap_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
499 struct task_struct *target, long type, int mode)
500{
501 return 0;
502}
503
504static int cap_shm_alloc_security(struct shmid_kernel *shp)
505{
506 return 0;
507}
508
509static void cap_shm_free_security(struct shmid_kernel *shp)
510{
511}
512
513static int cap_shm_associate(struct shmid_kernel *shp, int shmflg)
514{
515 return 0;
516}
517
518static int cap_shm_shmctl(struct shmid_kernel *shp, int cmd)
519{
520 return 0;
521}
522
523static int cap_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr,
524 int shmflg)
525{
526 return 0;
527}
528
529static int cap_sem_alloc_security(struct sem_array *sma)
530{
531 return 0;
532}
533
534static void cap_sem_free_security(struct sem_array *sma)
535{
536}
537
538static int cap_sem_associate(struct sem_array *sma, int semflg)
539{
540 return 0;
541}
542
543static int cap_sem_semctl(struct sem_array *sma, int cmd)
544{
545 return 0;
546}
547
548static int cap_sem_semop(struct sem_array *sma, struct sembuf *sops,
549 unsigned nsops, int alter)
550{
551 return 0;
552}
553
554#ifdef CONFIG_SECURITY_NETWORK
555static int cap_unix_stream_connect(struct sock *sock, struct sock *other,
556 struct sock *newsk)
557{
558 return 0;
559}
560
561static int cap_unix_may_send(struct socket *sock, struct socket *other)
562{
563 return 0;
564}
565
566static int cap_socket_create(int family, int type, int protocol, int kern)
567{
568 return 0;
569}
570
571static int cap_socket_post_create(struct socket *sock, int family, int type,
572 int protocol, int kern)
573{
574 return 0;
575}
576
577static int cap_socket_bind(struct socket *sock, struct sockaddr *address,
578 int addrlen)
579{
580 return 0;
581}
582
583static int cap_socket_connect(struct socket *sock, struct sockaddr *address,
584 int addrlen)
585{
586 return 0;
587}
588
589static int cap_socket_listen(struct socket *sock, int backlog)
590{
591 return 0;
592}
593
594static int cap_socket_accept(struct socket *sock, struct socket *newsock)
595{
596 return 0;
597}
598
599static int cap_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
600{
601 return 0;
602}
603
604static int cap_socket_recvmsg(struct socket *sock, struct msghdr *msg,
605 int size, int flags)
606{
607 return 0;
608}
609
610static int cap_socket_getsockname(struct socket *sock)
611{
612 return 0;
613}
614
615static int cap_socket_getpeername(struct socket *sock)
616{
617 return 0;
618}
619
620static int cap_socket_setsockopt(struct socket *sock, int level, int optname)
621{
622 return 0;
623}
624
625static int cap_socket_getsockopt(struct socket *sock, int level, int optname)
626{
627 return 0;
628}
629
630static int cap_socket_shutdown(struct socket *sock, int how)
631{
632 return 0;
633}
634
635static int cap_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
636{
637 return 0;
638}
639
640static int cap_socket_getpeersec_stream(struct socket *sock,
641 char __user *optval,
642 int __user *optlen, unsigned len)
643{
644 return -ENOPROTOOPT;
645}
646
647static int cap_socket_getpeersec_dgram(struct socket *sock,
648 struct sk_buff *skb, u32 *secid)
649{
650 return -ENOPROTOOPT;
651}
652
653static int cap_sk_alloc_security(struct sock *sk, int family, gfp_t priority)
654{
655 return 0;
656}
657
658static void cap_sk_free_security(struct sock *sk)
659{
660}
661
662static void cap_sk_clone_security(const struct sock *sk, struct sock *newsk)
663{
664}
665
666static void cap_sk_getsecid(struct sock *sk, u32 *secid)
667{
668}
669
670static void cap_sock_graft(struct sock *sk, struct socket *parent)
671{
672}
673
674static int cap_inet_conn_request(struct sock *sk, struct sk_buff *skb,
675 struct request_sock *req)
676{
677 return 0;
678}
679
680static void cap_inet_csk_clone(struct sock *newsk,
681 const struct request_sock *req)
682{
683}
684
685static void cap_inet_conn_established(struct sock *sk, struct sk_buff *skb)
686{
687}
688
689static int cap_secmark_relabel_packet(u32 secid)
690{
691 return 0;
692}
693
694static void cap_secmark_refcount_inc(void)
695{
696}
697
698static void cap_secmark_refcount_dec(void)
699{
700}
701
702static void cap_req_classify_flow(const struct request_sock *req,
703 struct flowi *fl)
704{
705}
706
707static int cap_tun_dev_create(void)
708{
709 return 0;
710}
711
712static void cap_tun_dev_post_create(struct sock *sk)
713{
714}
715
716static int cap_tun_dev_attach(struct sock *sk)
717{
718 return 0;
719}
720#endif /* CONFIG_SECURITY_NETWORK */
721
722#ifdef CONFIG_SECURITY_NETWORK_XFRM
723static int cap_xfrm_policy_alloc_security(struct xfrm_sec_ctx **ctxp,
724 struct xfrm_user_sec_ctx *sec_ctx)
725{
726 return 0;
727}
728
729static int cap_xfrm_policy_clone_security(struct xfrm_sec_ctx *old_ctx,
730 struct xfrm_sec_ctx **new_ctxp)
731{
732 return 0;
733}
734
735static void cap_xfrm_policy_free_security(struct xfrm_sec_ctx *ctx)
736{
737}
738
739static int cap_xfrm_policy_delete_security(struct xfrm_sec_ctx *ctx)
740{
741 return 0;
742}
743
744static int cap_xfrm_state_alloc_security(struct xfrm_state *x,
745 struct xfrm_user_sec_ctx *sec_ctx,
746 u32 secid)
747{
748 return 0;
749}
750
751static void cap_xfrm_state_free_security(struct xfrm_state *x)
752{
753}
754
755static int cap_xfrm_state_delete_security(struct xfrm_state *x)
756{
757 return 0;
758}
759
760static int cap_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 sk_sid, u8 dir)
761{
762 return 0;
763}
764
765static int cap_xfrm_state_pol_flow_match(struct xfrm_state *x,
766 struct xfrm_policy *xp,
767 const struct flowi *fl)
768{
769 return 1;
770}
771
772static int cap_xfrm_decode_session(struct sk_buff *skb, u32 *fl, int ckall)
773{
774 return 0;
775}
776
777#endif /* CONFIG_SECURITY_NETWORK_XFRM */
778static void cap_d_instantiate(struct dentry *dentry, struct inode *inode)
779{
780}
781
782static int cap_getprocattr(struct task_struct *p, char *name, char **value)
783{
784 return -EINVAL;
785}
786
787static int cap_setprocattr(struct task_struct *p, char *name, void *value,
788 size_t size)
789{
790 return -EINVAL;
791}
792
793static int cap_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
794{
795 return -EOPNOTSUPP;
796}
797
798static int cap_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
799{
800 *secid = 0;
801 return 0;
802}
803
804static void cap_release_secctx(char *secdata, u32 seclen)
805{
806}
807
808static int cap_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
809{
810 return 0;
811}
812
813static int cap_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
814{
815 return 0;
816}
817
818static int cap_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
819{
820 return 0;
821}
822#ifdef CONFIG_KEYS
823static int cap_key_alloc(struct key *key, const struct cred *cred,
824 unsigned long flags)
825{
826 return 0;
827}
828
829static void cap_key_free(struct key *key)
830{
831}
832
833static int cap_key_permission(key_ref_t key_ref, const struct cred *cred,
834 key_perm_t perm)
835{
836 return 0;
837}
838
839static int cap_key_getsecurity(struct key *key, char **_buffer)
840{
841 *_buffer = NULL;
842 return 0;
843}
844
845#endif /* CONFIG_KEYS */
846
847#ifdef CONFIG_AUDIT
848static int cap_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
849{
850 return 0;
851}
852
853static int cap_audit_rule_known(struct audit_krule *krule)
854{
855 return 0;
856}
857
858static int cap_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
859 struct audit_context *actx)
860{
861 return 0;
862}
863
864static void cap_audit_rule_free(void *lsmrule)
865{
866}
867#endif /* CONFIG_AUDIT */
868
869#define set_to_cap_if_null(ops, function) \
870 do { \
871 if (!ops->function) { \
872 ops->function = cap_##function; \
873 pr_debug("Had to override the " #function \
874 " security operation with the default.\n");\
875 } \
876 } while (0)
877
878void __init security_fixup_ops(struct security_operations *ops)
879{
880 set_to_cap_if_null(ops, ptrace_access_check);
881 set_to_cap_if_null(ops, ptrace_traceme);
882 set_to_cap_if_null(ops, capget);
883 set_to_cap_if_null(ops, capset);
884 set_to_cap_if_null(ops, capable);
885 set_to_cap_if_null(ops, quotactl);
886 set_to_cap_if_null(ops, quota_on);
887 set_to_cap_if_null(ops, syslog);
888 set_to_cap_if_null(ops, settime);
889 set_to_cap_if_null(ops, vm_enough_memory);
890 set_to_cap_if_null(ops, bprm_set_creds);
891 set_to_cap_if_null(ops, bprm_committing_creds);
892 set_to_cap_if_null(ops, bprm_committed_creds);
893 set_to_cap_if_null(ops, bprm_check_security);
894 set_to_cap_if_null(ops, bprm_secureexec);
895 set_to_cap_if_null(ops, sb_alloc_security);
896 set_to_cap_if_null(ops, sb_free_security);
897 set_to_cap_if_null(ops, sb_copy_data);
898 set_to_cap_if_null(ops, sb_remount);
899 set_to_cap_if_null(ops, sb_kern_mount);
900 set_to_cap_if_null(ops, sb_show_options);
901 set_to_cap_if_null(ops, sb_statfs);
902 set_to_cap_if_null(ops, sb_mount);
903 set_to_cap_if_null(ops, sb_umount);
904 set_to_cap_if_null(ops, sb_pivotroot);
905 set_to_cap_if_null(ops, sb_set_mnt_opts);
906 set_to_cap_if_null(ops, sb_clone_mnt_opts);
907 set_to_cap_if_null(ops, sb_parse_opts_str);
908 set_to_cap_if_null(ops, inode_alloc_security);
909 set_to_cap_if_null(ops, inode_free_security);
910 set_to_cap_if_null(ops, inode_init_security);
911 set_to_cap_if_null(ops, inode_create);
912 set_to_cap_if_null(ops, inode_link);
913 set_to_cap_if_null(ops, inode_unlink);
914 set_to_cap_if_null(ops, inode_symlink);
915 set_to_cap_if_null(ops, inode_mkdir);
916 set_to_cap_if_null(ops, inode_rmdir);
917 set_to_cap_if_null(ops, inode_mknod);
918 set_to_cap_if_null(ops, inode_rename);
919 set_to_cap_if_null(ops, inode_readlink);
920 set_to_cap_if_null(ops, inode_follow_link);
921 set_to_cap_if_null(ops, inode_permission);
922 set_to_cap_if_null(ops, inode_setattr);
923 set_to_cap_if_null(ops, inode_getattr);
924 set_to_cap_if_null(ops, inode_setxattr);
925 set_to_cap_if_null(ops, inode_post_setxattr);
926 set_to_cap_if_null(ops, inode_getxattr);
927 set_to_cap_if_null(ops, inode_listxattr);
928 set_to_cap_if_null(ops, inode_removexattr);
929 set_to_cap_if_null(ops, inode_need_killpriv);
930 set_to_cap_if_null(ops, inode_killpriv);
931 set_to_cap_if_null(ops, inode_getsecurity);
932 set_to_cap_if_null(ops, inode_setsecurity);
933 set_to_cap_if_null(ops, inode_listsecurity);
934 set_to_cap_if_null(ops, inode_getsecid);
935#ifdef CONFIG_SECURITY_PATH
936 set_to_cap_if_null(ops, path_mknod);
937 set_to_cap_if_null(ops, path_mkdir);
938 set_to_cap_if_null(ops, path_rmdir);
939 set_to_cap_if_null(ops, path_unlink);
940 set_to_cap_if_null(ops, path_symlink);
941 set_to_cap_if_null(ops, path_link);
942 set_to_cap_if_null(ops, path_rename);
943 set_to_cap_if_null(ops, path_truncate);
944 set_to_cap_if_null(ops, path_chmod);
945 set_to_cap_if_null(ops, path_chown);
946 set_to_cap_if_null(ops, path_chroot);
947#endif
948 set_to_cap_if_null(ops, file_permission);
949 set_to_cap_if_null(ops, file_alloc_security);
950 set_to_cap_if_null(ops, file_free_security);
951 set_to_cap_if_null(ops, file_ioctl);
952 set_to_cap_if_null(ops, mmap_addr);
953 set_to_cap_if_null(ops, mmap_file);
954 set_to_cap_if_null(ops, file_mprotect);
955 set_to_cap_if_null(ops, file_lock);
956 set_to_cap_if_null(ops, file_fcntl);
957 set_to_cap_if_null(ops, file_set_fowner);
958 set_to_cap_if_null(ops, file_send_sigiotask);
959 set_to_cap_if_null(ops, file_receive);
960 set_to_cap_if_null(ops, file_open);
961 set_to_cap_if_null(ops, task_create);
962 set_to_cap_if_null(ops, task_free);
963 set_to_cap_if_null(ops, cred_alloc_blank);
964 set_to_cap_if_null(ops, cred_free);
965 set_to_cap_if_null(ops, cred_prepare);
966 set_to_cap_if_null(ops, cred_transfer);
967 set_to_cap_if_null(ops, kernel_act_as);
968 set_to_cap_if_null(ops, kernel_create_files_as);
969 set_to_cap_if_null(ops, kernel_module_request);
970 set_to_cap_if_null(ops, task_fix_setuid);
971 set_to_cap_if_null(ops, task_setpgid);
972 set_to_cap_if_null(ops, task_getpgid);
973 set_to_cap_if_null(ops, task_getsid);
974 set_to_cap_if_null(ops, task_getsecid);
975 set_to_cap_if_null(ops, task_setnice);
976 set_to_cap_if_null(ops, task_setioprio);
977 set_to_cap_if_null(ops, task_getioprio);
978 set_to_cap_if_null(ops, task_setrlimit);
979 set_to_cap_if_null(ops, task_setscheduler);
980 set_to_cap_if_null(ops, task_getscheduler);
981 set_to_cap_if_null(ops, task_movememory);
982 set_to_cap_if_null(ops, task_wait);
983 set_to_cap_if_null(ops, task_kill);
984 set_to_cap_if_null(ops, task_prctl);
985 set_to_cap_if_null(ops, task_to_inode);
986 set_to_cap_if_null(ops, ipc_permission);
987 set_to_cap_if_null(ops, ipc_getsecid);
988 set_to_cap_if_null(ops, msg_msg_alloc_security);
989 set_to_cap_if_null(ops, msg_msg_free_security);
990 set_to_cap_if_null(ops, msg_queue_alloc_security);
991 set_to_cap_if_null(ops, msg_queue_free_security);
992 set_to_cap_if_null(ops, msg_queue_associate);
993 set_to_cap_if_null(ops, msg_queue_msgctl);
994 set_to_cap_if_null(ops, msg_queue_msgsnd);
995 set_to_cap_if_null(ops, msg_queue_msgrcv);
996 set_to_cap_if_null(ops, shm_alloc_security);
997 set_to_cap_if_null(ops, shm_free_security);
998 set_to_cap_if_null(ops, shm_associate);
999 set_to_cap_if_null(ops, shm_shmctl);
1000 set_to_cap_if_null(ops, shm_shmat);
1001 set_to_cap_if_null(ops, sem_alloc_security);
1002 set_to_cap_if_null(ops, sem_free_security);
1003 set_to_cap_if_null(ops, sem_associate);
1004 set_to_cap_if_null(ops, sem_semctl);
1005 set_to_cap_if_null(ops, sem_semop);
1006 set_to_cap_if_null(ops, netlink_send);
1007 set_to_cap_if_null(ops, d_instantiate);
1008 set_to_cap_if_null(ops, getprocattr);
1009 set_to_cap_if_null(ops, setprocattr);
1010 set_to_cap_if_null(ops, secid_to_secctx);
1011 set_to_cap_if_null(ops, secctx_to_secid);
1012 set_to_cap_if_null(ops, release_secctx);
1013 set_to_cap_if_null(ops, inode_notifysecctx);
1014 set_to_cap_if_null(ops, inode_setsecctx);
1015 set_to_cap_if_null(ops, inode_getsecctx);
1016#ifdef CONFIG_SECURITY_NETWORK
1017 set_to_cap_if_null(ops, unix_stream_connect);
1018 set_to_cap_if_null(ops, unix_may_send);
1019 set_to_cap_if_null(ops, socket_create);
1020 set_to_cap_if_null(ops, socket_post_create);
1021 set_to_cap_if_null(ops, socket_bind);
1022 set_to_cap_if_null(ops, socket_connect);
1023 set_to_cap_if_null(ops, socket_listen);
1024 set_to_cap_if_null(ops, socket_accept);
1025 set_to_cap_if_null(ops, socket_sendmsg);
1026 set_to_cap_if_null(ops, socket_recvmsg);
1027 set_to_cap_if_null(ops, socket_getsockname);
1028 set_to_cap_if_null(ops, socket_getpeername);
1029 set_to_cap_if_null(ops, socket_setsockopt);
1030 set_to_cap_if_null(ops, socket_getsockopt);
1031 set_to_cap_if_null(ops, socket_shutdown);
1032 set_to_cap_if_null(ops, socket_sock_rcv_skb);
1033 set_to_cap_if_null(ops, socket_getpeersec_stream);
1034 set_to_cap_if_null(ops, socket_getpeersec_dgram);
1035 set_to_cap_if_null(ops, sk_alloc_security);
1036 set_to_cap_if_null(ops, sk_free_security);
1037 set_to_cap_if_null(ops, sk_clone_security);
1038 set_to_cap_if_null(ops, sk_getsecid);
1039 set_to_cap_if_null(ops, sock_graft);
1040 set_to_cap_if_null(ops, inet_conn_request);
1041 set_to_cap_if_null(ops, inet_csk_clone);
1042 set_to_cap_if_null(ops, inet_conn_established);
1043 set_to_cap_if_null(ops, secmark_relabel_packet);
1044 set_to_cap_if_null(ops, secmark_refcount_inc);
1045 set_to_cap_if_null(ops, secmark_refcount_dec);
1046 set_to_cap_if_null(ops, req_classify_flow);
1047 set_to_cap_if_null(ops, tun_dev_create);
1048 set_to_cap_if_null(ops, tun_dev_post_create);
1049 set_to_cap_if_null(ops, tun_dev_attach);
1050#endif /* CONFIG_SECURITY_NETWORK */
1051#ifdef CONFIG_SECURITY_NETWORK_XFRM
1052 set_to_cap_if_null(ops, xfrm_policy_alloc_security);
1053 set_to_cap_if_null(ops, xfrm_policy_clone_security);
1054 set_to_cap_if_null(ops, xfrm_policy_free_security);
1055 set_to_cap_if_null(ops, xfrm_policy_delete_security);
1056 set_to_cap_if_null(ops, xfrm_state_alloc_security);
1057 set_to_cap_if_null(ops, xfrm_state_free_security);
1058 set_to_cap_if_null(ops, xfrm_state_delete_security);
1059 set_to_cap_if_null(ops, xfrm_policy_lookup);
1060 set_to_cap_if_null(ops, xfrm_state_pol_flow_match);
1061 set_to_cap_if_null(ops, xfrm_decode_session);
1062#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1063#ifdef CONFIG_KEYS
1064 set_to_cap_if_null(ops, key_alloc);
1065 set_to_cap_if_null(ops, key_free);
1066 set_to_cap_if_null(ops, key_permission);
1067 set_to_cap_if_null(ops, key_getsecurity);
1068#endif /* CONFIG_KEYS */
1069#ifdef CONFIG_AUDIT
1070 set_to_cap_if_null(ops, audit_rule_init);
1071 set_to_cap_if_null(ops, audit_rule_known);
1072 set_to_cap_if_null(ops, audit_rule_match);
1073 set_to_cap_if_null(ops, audit_rule_free);
1074#endif
1075}
1/*
2 * Capabilities Linux Security Module
3 *
4 * This is the default security module in case no other module is loaded.
5 *
6 * 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
13#include <linux/security.h>
14
15static int cap_syslog(int type)
16{
17 return 0;
18}
19
20static 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
30static int cap_bprm_check_security(struct linux_binprm *bprm)
31{
32 return 0;
33}
34
35static void cap_bprm_committing_creds(struct linux_binprm *bprm)
36{
37}
38
39static void cap_bprm_committed_creds(struct linux_binprm *bprm)
40{
41}
42
43static 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
57static int cap_sb_remount(struct super_block *sb, void *data)
58{
59 return 0;
60}
61
62static int cap_sb_kern_mount(struct super_block *sb, int flags, void *data)
63{
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
77static int cap_sb_mount(char *dev_name, struct path *path, char *type,
78 unsigned long flags, void *data)
79{
80 return 0;
81}
82
83static int cap_sb_umount(struct vfsmount *mnt, int flags)
84{
85 return 0;
86}
87
88static int cap_sb_pivotroot(struct path *old_path, struct path *new_path)
89{
90 return 0;
91}
92
93static int cap_sb_set_mnt_opts(struct super_block *sb,
94 struct security_mnt_opts *opts)
95{
96 if (unlikely(opts->num_mnt_opts))
97 return -EOPNOTSUPP;
98 return 0;
99}
100
101static void cap_sb_clone_mnt_opts(const struct super_block *oldsb,
102 struct super_block *newsb)
103{
104}
105
106static int cap_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
107{
108 return 0;
109}
110
111static int cap_inode_alloc_security(struct inode *inode)
112{
113 return 0;
114}
115
116static void cap_inode_free_security(struct inode *inode)
117{
118}
119
120static int cap_inode_init_security(struct inode *inode, struct inode *dir,
121 const struct qstr *qstr, char **name,
122 void **value, size_t *len)
123{
124 return -EOPNOTSUPP;
125}
126
127static int cap_inode_create(struct inode *inode, struct dentry *dentry,
128 int mask)
129{
130 return 0;
131}
132
133static int cap_inode_link(struct dentry *old_dentry, struct inode *inode,
134 struct dentry *new_dentry)
135{
136 return 0;
137}
138
139static int cap_inode_unlink(struct inode *inode, struct dentry *dentry)
140{
141 return 0;
142}
143
144static int cap_inode_symlink(struct inode *inode, struct dentry *dentry,
145 const char *name)
146{
147 return 0;
148}
149
150static int cap_inode_mkdir(struct inode *inode, struct dentry *dentry,
151 int mask)
152{
153 return 0;
154}
155
156static int cap_inode_rmdir(struct inode *inode, struct dentry *dentry)
157{
158 return 0;
159}
160
161static int cap_inode_mknod(struct inode *inode, struct dentry *dentry,
162 int mode, dev_t dev)
163{
164 return 0;
165}
166
167static int cap_inode_rename(struct inode *old_inode, struct dentry *old_dentry,
168 struct inode *new_inode, struct dentry *new_dentry)
169{
170 return 0;
171}
172
173static int cap_inode_readlink(struct dentry *dentry)
174{
175 return 0;
176}
177
178static int cap_inode_follow_link(struct dentry *dentry,
179 struct nameidata *nameidata)
180{
181 return 0;
182}
183
184static int cap_inode_permission(struct inode *inode, int mask)
185{
186 return 0;
187}
188
189static int cap_inode_setattr(struct dentry *dentry, struct iattr *iattr)
190{
191 return 0;
192}
193
194static int cap_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
195{
196 return 0;
197}
198
199static void cap_inode_post_setxattr(struct dentry *dentry, const char *name,
200 const void *value, size_t size, int flags)
201{
202}
203
204static int cap_inode_getxattr(struct dentry *dentry, const char *name)
205{
206 return 0;
207}
208
209static int cap_inode_listxattr(struct dentry *dentry)
210{
211 return 0;
212}
213
214static int cap_inode_getsecurity(const struct inode *inode, const char *name,
215 void **buffer, bool alloc)
216{
217 return -EOPNOTSUPP;
218}
219
220static int cap_inode_setsecurity(struct inode *inode, const char *name,
221 const void *value, size_t size, int flags)
222{
223 return -EOPNOTSUPP;
224}
225
226static int cap_inode_listsecurity(struct inode *inode, char *buffer,
227 size_t buffer_size)
228{
229 return 0;
230}
231
232static void cap_inode_getsecid(const struct inode *inode, u32 *secid)
233{
234 *secid = 0;
235}
236
237#ifdef CONFIG_SECURITY_PATH
238static int cap_path_mknod(struct path *dir, struct dentry *dentry, int mode,
239 unsigned int dev)
240{
241 return 0;
242}
243
244static int cap_path_mkdir(struct path *dir, struct dentry *dentry, int mode)
245{
246 return 0;
247}
248
249static int cap_path_rmdir(struct path *dir, struct dentry *dentry)
250{
251 return 0;
252}
253
254static int cap_path_unlink(struct path *dir, struct dentry *dentry)
255{
256 return 0;
257}
258
259static int cap_path_symlink(struct path *dir, struct dentry *dentry,
260 const char *old_name)
261{
262 return 0;
263}
264
265static int cap_path_link(struct dentry *old_dentry, struct path *new_dir,
266 struct dentry *new_dentry)
267{
268 return 0;
269}
270
271static int cap_path_rename(struct path *old_path, struct dentry *old_dentry,
272 struct path *new_path, struct dentry *new_dentry)
273{
274 return 0;
275}
276
277static int cap_path_truncate(struct path *path)
278{
279 return 0;
280}
281
282static int cap_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
283 mode_t mode)
284{
285 return 0;
286}
287
288static int cap_path_chown(struct path *path, uid_t uid, gid_t gid)
289{
290 return 0;
291}
292
293static int cap_path_chroot(struct path *root)
294{
295 return 0;
296}
297#endif
298
299static int cap_file_permission(struct file *file, int mask)
300{
301 return 0;
302}
303
304static int cap_file_alloc_security(struct file *file)
305{
306 return 0;
307}
308
309static void cap_file_free_security(struct file *file)
310{
311}
312
313static int cap_file_ioctl(struct file *file, unsigned int command,
314 unsigned long arg)
315{
316 return 0;
317}
318
319static int cap_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
320 unsigned long prot)
321{
322 return 0;
323}
324
325static int cap_file_lock(struct file *file, unsigned int cmd)
326{
327 return 0;
328}
329
330static int cap_file_fcntl(struct file *file, unsigned int cmd,
331 unsigned long arg)
332{
333 return 0;
334}
335
336static int cap_file_set_fowner(struct file *file)
337{
338 return 0;
339}
340
341static int cap_file_send_sigiotask(struct task_struct *tsk,
342 struct fown_struct *fown, int sig)
343{
344 return 0;
345}
346
347static int cap_file_receive(struct file *file)
348{
349 return 0;
350}
351
352static int cap_dentry_open(struct file *file, const struct cred *cred)
353{
354 return 0;
355}
356
357static int cap_task_create(unsigned long clone_flags)
358{
359 return 0;
360}
361
362static int cap_cred_alloc_blank(struct cred *cred, gfp_t gfp)
363{
364 return 0;
365}
366
367static void cap_cred_free(struct cred *cred)
368{
369}
370
371static int cap_cred_prepare(struct cred *new, const struct cred *old, gfp_t gfp)
372{
373 return 0;
374}
375
376static void cap_cred_transfer(struct cred *new, const struct cred *old)
377{
378}
379
380static int cap_kernel_act_as(struct cred *new, u32 secid)
381{
382 return 0;
383}
384
385static int cap_kernel_create_files_as(struct cred *new, struct inode *inode)
386{
387 return 0;
388}
389
390static int cap_kernel_module_request(char *kmod_name)
391{
392 return 0;
393}
394
395static int cap_task_setpgid(struct task_struct *p, pid_t pgid)
396{
397 return 0;
398}
399
400static int cap_task_getpgid(struct task_struct *p)
401{
402 return 0;
403}
404
405static int cap_task_getsid(struct task_struct *p)
406{
407 return 0;
408}
409
410static void cap_task_getsecid(struct task_struct *p, u32 *secid)
411{
412 *secid = 0;
413}
414
415static int cap_task_getioprio(struct task_struct *p)
416{
417 return 0;
418}
419
420static int cap_task_setrlimit(struct task_struct *p, unsigned int resource,
421 struct rlimit *new_rlim)
422{
423 return 0;
424}
425
426static int cap_task_getscheduler(struct task_struct *p)
427{
428 return 0;
429}
430
431static int cap_task_movememory(struct task_struct *p)
432{
433 return 0;
434}
435
436static int cap_task_wait(struct task_struct *p)
437{
438 return 0;
439}
440
441static int cap_task_kill(struct task_struct *p, struct siginfo *info,
442 int sig, u32 secid)
443{
444 return 0;
445}
446
447static void cap_task_to_inode(struct task_struct *p, struct inode *inode)
448{
449}
450
451static int cap_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
452{
453 return 0;
454}
455
456static void cap_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
457{
458 *secid = 0;
459}
460
461static int cap_msg_msg_alloc_security(struct msg_msg *msg)
462{
463 return 0;
464}
465
466static void cap_msg_msg_free_security(struct msg_msg *msg)
467{
468}
469
470static int cap_msg_queue_alloc_security(struct msg_queue *msq)
471{
472 return 0;
473}
474
475static void cap_msg_queue_free_security(struct msg_queue *msq)
476{
477}
478
479static int cap_msg_queue_associate(struct msg_queue *msq, int msqflg)
480{
481 return 0;
482}
483
484static int cap_msg_queue_msgctl(struct msg_queue *msq, int cmd)
485{
486 return 0;
487}
488
489static int cap_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
490 int msgflg)
491{
492 return 0;
493}
494
495static int cap_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
496 struct task_struct *target, long type, int mode)
497{
498 return 0;
499}
500
501static int cap_shm_alloc_security(struct shmid_kernel *shp)
502{
503 return 0;
504}
505
506static void cap_shm_free_security(struct shmid_kernel *shp)
507{
508}
509
510static int cap_shm_associate(struct shmid_kernel *shp, int shmflg)
511{
512 return 0;
513}
514
515static int cap_shm_shmctl(struct shmid_kernel *shp, int cmd)
516{
517 return 0;
518}
519
520static int cap_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr,
521 int shmflg)
522{
523 return 0;
524}
525
526static int cap_sem_alloc_security(struct sem_array *sma)
527{
528 return 0;
529}
530
531static void cap_sem_free_security(struct sem_array *sma)
532{
533}
534
535static int cap_sem_associate(struct sem_array *sma, int semflg)
536{
537 return 0;
538}
539
540static int cap_sem_semctl(struct sem_array *sma, int cmd)
541{
542 return 0;
543}
544
545static int cap_sem_semop(struct sem_array *sma, struct sembuf *sops,
546 unsigned nsops, int alter)
547{
548 return 0;
549}
550
551#ifdef CONFIG_SECURITY_NETWORK
552static int cap_unix_stream_connect(struct sock *sock, struct sock *other,
553 struct sock *newsk)
554{
555 return 0;
556}
557
558static int cap_unix_may_send(struct socket *sock, struct socket *other)
559{
560 return 0;
561}
562
563static int cap_socket_create(int family, int type, int protocol, int kern)
564{
565 return 0;
566}
567
568static int cap_socket_post_create(struct socket *sock, int family, int type,
569 int protocol, int kern)
570{
571 return 0;
572}
573
574static int cap_socket_bind(struct socket *sock, struct sockaddr *address,
575 int addrlen)
576{
577 return 0;
578}
579
580static int cap_socket_connect(struct socket *sock, struct sockaddr *address,
581 int addrlen)
582{
583 return 0;
584}
585
586static int cap_socket_listen(struct socket *sock, int backlog)
587{
588 return 0;
589}
590
591static int cap_socket_accept(struct socket *sock, struct socket *newsock)
592{
593 return 0;
594}
595
596static int cap_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
597{
598 return 0;
599}
600
601static int cap_socket_recvmsg(struct socket *sock, struct msghdr *msg,
602 int size, int flags)
603{
604 return 0;
605}
606
607static int cap_socket_getsockname(struct socket *sock)
608{
609 return 0;
610}
611
612static int cap_socket_getpeername(struct socket *sock)
613{
614 return 0;
615}
616
617static int cap_socket_setsockopt(struct socket *sock, int level, int optname)
618{
619 return 0;
620}
621
622static int cap_socket_getsockopt(struct socket *sock, int level, int optname)
623{
624 return 0;
625}
626
627static int cap_socket_shutdown(struct socket *sock, int how)
628{
629 return 0;
630}
631
632static int cap_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
633{
634 return 0;
635}
636
637static int cap_socket_getpeersec_stream(struct socket *sock,
638 char __user *optval,
639 int __user *optlen, unsigned len)
640{
641 return -ENOPROTOOPT;
642}
643
644static int cap_socket_getpeersec_dgram(struct socket *sock,
645 struct sk_buff *skb, u32 *secid)
646{
647 return -ENOPROTOOPT;
648}
649
650static int cap_sk_alloc_security(struct sock *sk, int family, gfp_t priority)
651{
652 return 0;
653}
654
655static void cap_sk_free_security(struct sock *sk)
656{
657}
658
659static void cap_sk_clone_security(const struct sock *sk, struct sock *newsk)
660{
661}
662
663static void cap_sk_getsecid(struct sock *sk, u32 *secid)
664{
665}
666
667static void cap_sock_graft(struct sock *sk, struct socket *parent)
668{
669}
670
671static int cap_inet_conn_request(struct sock *sk, struct sk_buff *skb,
672 struct request_sock *req)
673{
674 return 0;
675}
676
677static void cap_inet_csk_clone(struct sock *newsk,
678 const struct request_sock *req)
679{
680}
681
682static void cap_inet_conn_established(struct sock *sk, struct sk_buff *skb)
683{
684}
685
686static int cap_secmark_relabel_packet(u32 secid)
687{
688 return 0;
689}
690
691static void cap_secmark_refcount_inc(void)
692{
693}
694
695static void cap_secmark_refcount_dec(void)
696{
697}
698
699static void cap_req_classify_flow(const struct request_sock *req,
700 struct flowi *fl)
701{
702}
703
704static int cap_tun_dev_create(void)
705{
706 return 0;
707}
708
709static void cap_tun_dev_post_create(struct sock *sk)
710{
711}
712
713static int cap_tun_dev_attach(struct sock *sk)
714{
715 return 0;
716}
717#endif /* CONFIG_SECURITY_NETWORK */
718
719#ifdef CONFIG_SECURITY_NETWORK_XFRM
720static int cap_xfrm_policy_alloc_security(struct xfrm_sec_ctx **ctxp,
721 struct xfrm_user_sec_ctx *sec_ctx)
722{
723 return 0;
724}
725
726static int cap_xfrm_policy_clone_security(struct xfrm_sec_ctx *old_ctx,
727 struct xfrm_sec_ctx **new_ctxp)
728{
729 return 0;
730}
731
732static void cap_xfrm_policy_free_security(struct xfrm_sec_ctx *ctx)
733{
734}
735
736static int cap_xfrm_policy_delete_security(struct xfrm_sec_ctx *ctx)
737{
738 return 0;
739}
740
741static int cap_xfrm_state_alloc_security(struct xfrm_state *x,
742 struct xfrm_user_sec_ctx *sec_ctx,
743 u32 secid)
744{
745 return 0;
746}
747
748static void cap_xfrm_state_free_security(struct xfrm_state *x)
749{
750}
751
752static int cap_xfrm_state_delete_security(struct xfrm_state *x)
753{
754 return 0;
755}
756
757static int cap_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 sk_sid, u8 dir)
758{
759 return 0;
760}
761
762static int cap_xfrm_state_pol_flow_match(struct xfrm_state *x,
763 struct xfrm_policy *xp,
764 const struct flowi *fl)
765{
766 return 1;
767}
768
769static int cap_xfrm_decode_session(struct sk_buff *skb, u32 *fl, int ckall)
770{
771 return 0;
772}
773
774#endif /* CONFIG_SECURITY_NETWORK_XFRM */
775static void cap_d_instantiate(struct dentry *dentry, struct inode *inode)
776{
777}
778
779static int cap_getprocattr(struct task_struct *p, char *name, char **value)
780{
781 return -EINVAL;
782}
783
784static int cap_setprocattr(struct task_struct *p, char *name, void *value,
785 size_t size)
786{
787 return -EINVAL;
788}
789
790static int cap_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
791{
792 return -EOPNOTSUPP;
793}
794
795static int cap_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
796{
797 *secid = 0;
798 return 0;
799}
800
801static void cap_release_secctx(char *secdata, u32 seclen)
802{
803}
804
805static int cap_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
806{
807 return 0;
808}
809
810static int cap_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
811{
812 return 0;
813}
814
815static int cap_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
816{
817 return 0;
818}
819#ifdef CONFIG_KEYS
820static int cap_key_alloc(struct key *key, const struct cred *cred,
821 unsigned long flags)
822{
823 return 0;
824}
825
826static void cap_key_free(struct key *key)
827{
828}
829
830static int cap_key_permission(key_ref_t key_ref, const struct cred *cred,
831 key_perm_t perm)
832{
833 return 0;
834}
835
836static int cap_key_getsecurity(struct key *key, char **_buffer)
837{
838 *_buffer = NULL;
839 return 0;
840}
841
842#endif /* CONFIG_KEYS */
843
844#ifdef CONFIG_AUDIT
845static int cap_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
846{
847 return 0;
848}
849
850static int cap_audit_rule_known(struct audit_krule *krule)
851{
852 return 0;
853}
854
855static int cap_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
856 struct audit_context *actx)
857{
858 return 0;
859}
860
861static void cap_audit_rule_free(void *lsmrule)
862{
863}
864#endif /* CONFIG_AUDIT */
865
866#define set_to_cap_if_null(ops, function) \
867 do { \
868 if (!ops->function) { \
869 ops->function = cap_##function; \
870 pr_debug("Had to override the " #function \
871 " security operation with the default.\n");\
872 } \
873 } while (0)
874
875void __init security_fixup_ops(struct security_operations *ops)
876{
877 set_to_cap_if_null(ops, ptrace_access_check);
878 set_to_cap_if_null(ops, ptrace_traceme);
879 set_to_cap_if_null(ops, capget);
880 set_to_cap_if_null(ops, capset);
881 set_to_cap_if_null(ops, capable);
882 set_to_cap_if_null(ops, quotactl);
883 set_to_cap_if_null(ops, quota_on);
884 set_to_cap_if_null(ops, syslog);
885 set_to_cap_if_null(ops, settime);
886 set_to_cap_if_null(ops, vm_enough_memory);
887 set_to_cap_if_null(ops, bprm_set_creds);
888 set_to_cap_if_null(ops, bprm_committing_creds);
889 set_to_cap_if_null(ops, bprm_committed_creds);
890 set_to_cap_if_null(ops, bprm_check_security);
891 set_to_cap_if_null(ops, bprm_secureexec);
892 set_to_cap_if_null(ops, sb_alloc_security);
893 set_to_cap_if_null(ops, sb_free_security);
894 set_to_cap_if_null(ops, sb_copy_data);
895 set_to_cap_if_null(ops, sb_remount);
896 set_to_cap_if_null(ops, sb_kern_mount);
897 set_to_cap_if_null(ops, sb_show_options);
898 set_to_cap_if_null(ops, sb_statfs);
899 set_to_cap_if_null(ops, sb_mount);
900 set_to_cap_if_null(ops, sb_umount);
901 set_to_cap_if_null(ops, sb_pivotroot);
902 set_to_cap_if_null(ops, sb_set_mnt_opts);
903 set_to_cap_if_null(ops, sb_clone_mnt_opts);
904 set_to_cap_if_null(ops, sb_parse_opts_str);
905 set_to_cap_if_null(ops, inode_alloc_security);
906 set_to_cap_if_null(ops, inode_free_security);
907 set_to_cap_if_null(ops, inode_init_security);
908 set_to_cap_if_null(ops, inode_create);
909 set_to_cap_if_null(ops, inode_link);
910 set_to_cap_if_null(ops, inode_unlink);
911 set_to_cap_if_null(ops, inode_symlink);
912 set_to_cap_if_null(ops, inode_mkdir);
913 set_to_cap_if_null(ops, inode_rmdir);
914 set_to_cap_if_null(ops, inode_mknod);
915 set_to_cap_if_null(ops, inode_rename);
916 set_to_cap_if_null(ops, inode_readlink);
917 set_to_cap_if_null(ops, inode_follow_link);
918 set_to_cap_if_null(ops, inode_permission);
919 set_to_cap_if_null(ops, inode_setattr);
920 set_to_cap_if_null(ops, inode_getattr);
921 set_to_cap_if_null(ops, inode_setxattr);
922 set_to_cap_if_null(ops, inode_post_setxattr);
923 set_to_cap_if_null(ops, inode_getxattr);
924 set_to_cap_if_null(ops, inode_listxattr);
925 set_to_cap_if_null(ops, inode_removexattr);
926 set_to_cap_if_null(ops, inode_need_killpriv);
927 set_to_cap_if_null(ops, inode_killpriv);
928 set_to_cap_if_null(ops, inode_getsecurity);
929 set_to_cap_if_null(ops, inode_setsecurity);
930 set_to_cap_if_null(ops, inode_listsecurity);
931 set_to_cap_if_null(ops, inode_getsecid);
932#ifdef CONFIG_SECURITY_PATH
933 set_to_cap_if_null(ops, path_mknod);
934 set_to_cap_if_null(ops, path_mkdir);
935 set_to_cap_if_null(ops, path_rmdir);
936 set_to_cap_if_null(ops, path_unlink);
937 set_to_cap_if_null(ops, path_symlink);
938 set_to_cap_if_null(ops, path_link);
939 set_to_cap_if_null(ops, path_rename);
940 set_to_cap_if_null(ops, path_truncate);
941 set_to_cap_if_null(ops, path_chmod);
942 set_to_cap_if_null(ops, path_chown);
943 set_to_cap_if_null(ops, path_chroot);
944#endif
945 set_to_cap_if_null(ops, file_permission);
946 set_to_cap_if_null(ops, file_alloc_security);
947 set_to_cap_if_null(ops, file_free_security);
948 set_to_cap_if_null(ops, file_ioctl);
949 set_to_cap_if_null(ops, file_mmap);
950 set_to_cap_if_null(ops, file_mprotect);
951 set_to_cap_if_null(ops, file_lock);
952 set_to_cap_if_null(ops, file_fcntl);
953 set_to_cap_if_null(ops, file_set_fowner);
954 set_to_cap_if_null(ops, file_send_sigiotask);
955 set_to_cap_if_null(ops, file_receive);
956 set_to_cap_if_null(ops, dentry_open);
957 set_to_cap_if_null(ops, task_create);
958 set_to_cap_if_null(ops, cred_alloc_blank);
959 set_to_cap_if_null(ops, cred_free);
960 set_to_cap_if_null(ops, cred_prepare);
961 set_to_cap_if_null(ops, cred_transfer);
962 set_to_cap_if_null(ops, kernel_act_as);
963 set_to_cap_if_null(ops, kernel_create_files_as);
964 set_to_cap_if_null(ops, kernel_module_request);
965 set_to_cap_if_null(ops, task_fix_setuid);
966 set_to_cap_if_null(ops, task_setpgid);
967 set_to_cap_if_null(ops, task_getpgid);
968 set_to_cap_if_null(ops, task_getsid);
969 set_to_cap_if_null(ops, task_getsecid);
970 set_to_cap_if_null(ops, task_setnice);
971 set_to_cap_if_null(ops, task_setioprio);
972 set_to_cap_if_null(ops, task_getioprio);
973 set_to_cap_if_null(ops, task_setrlimit);
974 set_to_cap_if_null(ops, task_setscheduler);
975 set_to_cap_if_null(ops, task_getscheduler);
976 set_to_cap_if_null(ops, task_movememory);
977 set_to_cap_if_null(ops, task_wait);
978 set_to_cap_if_null(ops, task_kill);
979 set_to_cap_if_null(ops, task_prctl);
980 set_to_cap_if_null(ops, task_to_inode);
981 set_to_cap_if_null(ops, ipc_permission);
982 set_to_cap_if_null(ops, ipc_getsecid);
983 set_to_cap_if_null(ops, msg_msg_alloc_security);
984 set_to_cap_if_null(ops, msg_msg_free_security);
985 set_to_cap_if_null(ops, msg_queue_alloc_security);
986 set_to_cap_if_null(ops, msg_queue_free_security);
987 set_to_cap_if_null(ops, msg_queue_associate);
988 set_to_cap_if_null(ops, msg_queue_msgctl);
989 set_to_cap_if_null(ops, msg_queue_msgsnd);
990 set_to_cap_if_null(ops, msg_queue_msgrcv);
991 set_to_cap_if_null(ops, shm_alloc_security);
992 set_to_cap_if_null(ops, shm_free_security);
993 set_to_cap_if_null(ops, shm_associate);
994 set_to_cap_if_null(ops, shm_shmctl);
995 set_to_cap_if_null(ops, shm_shmat);
996 set_to_cap_if_null(ops, sem_alloc_security);
997 set_to_cap_if_null(ops, sem_free_security);
998 set_to_cap_if_null(ops, sem_associate);
999 set_to_cap_if_null(ops, sem_semctl);
1000 set_to_cap_if_null(ops, sem_semop);
1001 set_to_cap_if_null(ops, netlink_send);
1002 set_to_cap_if_null(ops, netlink_recv);
1003 set_to_cap_if_null(ops, d_instantiate);
1004 set_to_cap_if_null(ops, getprocattr);
1005 set_to_cap_if_null(ops, setprocattr);
1006 set_to_cap_if_null(ops, secid_to_secctx);
1007 set_to_cap_if_null(ops, secctx_to_secid);
1008 set_to_cap_if_null(ops, release_secctx);
1009 set_to_cap_if_null(ops, inode_notifysecctx);
1010 set_to_cap_if_null(ops, inode_setsecctx);
1011 set_to_cap_if_null(ops, inode_getsecctx);
1012#ifdef CONFIG_SECURITY_NETWORK
1013 set_to_cap_if_null(ops, unix_stream_connect);
1014 set_to_cap_if_null(ops, unix_may_send);
1015 set_to_cap_if_null(ops, socket_create);
1016 set_to_cap_if_null(ops, socket_post_create);
1017 set_to_cap_if_null(ops, socket_bind);
1018 set_to_cap_if_null(ops, socket_connect);
1019 set_to_cap_if_null(ops, socket_listen);
1020 set_to_cap_if_null(ops, socket_accept);
1021 set_to_cap_if_null(ops, socket_sendmsg);
1022 set_to_cap_if_null(ops, socket_recvmsg);
1023 set_to_cap_if_null(ops, socket_getsockname);
1024 set_to_cap_if_null(ops, socket_getpeername);
1025 set_to_cap_if_null(ops, socket_setsockopt);
1026 set_to_cap_if_null(ops, socket_getsockopt);
1027 set_to_cap_if_null(ops, socket_shutdown);
1028 set_to_cap_if_null(ops, socket_sock_rcv_skb);
1029 set_to_cap_if_null(ops, socket_getpeersec_stream);
1030 set_to_cap_if_null(ops, socket_getpeersec_dgram);
1031 set_to_cap_if_null(ops, sk_alloc_security);
1032 set_to_cap_if_null(ops, sk_free_security);
1033 set_to_cap_if_null(ops, sk_clone_security);
1034 set_to_cap_if_null(ops, sk_getsecid);
1035 set_to_cap_if_null(ops, sock_graft);
1036 set_to_cap_if_null(ops, inet_conn_request);
1037 set_to_cap_if_null(ops, inet_csk_clone);
1038 set_to_cap_if_null(ops, inet_conn_established);
1039 set_to_cap_if_null(ops, secmark_relabel_packet);
1040 set_to_cap_if_null(ops, secmark_refcount_inc);
1041 set_to_cap_if_null(ops, secmark_refcount_dec);
1042 set_to_cap_if_null(ops, req_classify_flow);
1043 set_to_cap_if_null(ops, tun_dev_create);
1044 set_to_cap_if_null(ops, tun_dev_post_create);
1045 set_to_cap_if_null(ops, tun_dev_attach);
1046#endif /* CONFIG_SECURITY_NETWORK */
1047#ifdef CONFIG_SECURITY_NETWORK_XFRM
1048 set_to_cap_if_null(ops, xfrm_policy_alloc_security);
1049 set_to_cap_if_null(ops, xfrm_policy_clone_security);
1050 set_to_cap_if_null(ops, xfrm_policy_free_security);
1051 set_to_cap_if_null(ops, xfrm_policy_delete_security);
1052 set_to_cap_if_null(ops, xfrm_state_alloc_security);
1053 set_to_cap_if_null(ops, xfrm_state_free_security);
1054 set_to_cap_if_null(ops, xfrm_state_delete_security);
1055 set_to_cap_if_null(ops, xfrm_policy_lookup);
1056 set_to_cap_if_null(ops, xfrm_state_pol_flow_match);
1057 set_to_cap_if_null(ops, xfrm_decode_session);
1058#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1059#ifdef CONFIG_KEYS
1060 set_to_cap_if_null(ops, key_alloc);
1061 set_to_cap_if_null(ops, key_free);
1062 set_to_cap_if_null(ops, key_permission);
1063 set_to_cap_if_null(ops, key_getsecurity);
1064#endif /* CONFIG_KEYS */
1065#ifdef CONFIG_AUDIT
1066 set_to_cap_if_null(ops, audit_rule_init);
1067 set_to_cap_if_null(ops, audit_rule_known);
1068 set_to_cap_if_null(ops, audit_rule_match);
1069 set_to_cap_if_null(ops, audit_rule_free);
1070#endif
1071}