aboutsummaryrefslogtreecommitdiffstats
path: root/security/dummy.c
diff options
context:
space:
mode:
Diffstat (limited to 'security/dummy.c')
-rw-r--r--security/dummy.c1250
1 files changed, 0 insertions, 1250 deletions
diff --git a/security/dummy.c b/security/dummy.c
deleted file mode 100644
index 793856691641..000000000000
--- a/security/dummy.c
+++ /dev/null
@@ -1,1250 +0,0 @@
1/*
2 * Stub functions for the default security function pointers in case no
3 * security model is loaded.
4 *
5 * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
6 * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com>
7 * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 */
14
15#undef DEBUG
16
17#include <linux/capability.h>
18#include <linux/kernel.h>
19#include <linux/mman.h>
20#include <linux/pagemap.h>
21#include <linux/swap.h>
22#include <linux/security.h>
23#include <linux/skbuff.h>
24#include <linux/netlink.h>
25#include <net/sock.h>
26#include <linux/xattr.h>
27#include <linux/hugetlb.h>
28#include <linux/ptrace.h>
29#include <linux/file.h>
30#include <linux/prctl.h>
31#include <linux/securebits.h>
32
33static int dummy_ptrace (struct task_struct *parent, struct task_struct *child,
34 unsigned int mode)
35{
36 return 0;
37}
38
39static int dummy_capget (struct task_struct *target, kernel_cap_t * effective,
40 kernel_cap_t * inheritable, kernel_cap_t * permitted)
41{
42 if (target->euid == 0) {
43 cap_set_full(*permitted);
44 cap_set_init_eff(*effective);
45 } else {
46 cap_clear(*permitted);
47 cap_clear(*effective);
48 }
49
50 cap_clear(*inheritable);
51
52 if (target->fsuid != 0) {
53 *permitted = cap_drop_fs_set(*permitted);
54 *effective = cap_drop_fs_set(*effective);
55 }
56 return 0;
57}
58
59static int dummy_capset_check (struct task_struct *target,
60 kernel_cap_t * effective,
61 kernel_cap_t * inheritable,
62 kernel_cap_t * permitted)
63{
64 return -EPERM;
65}
66
67static void dummy_capset_set (struct task_struct *target,
68 kernel_cap_t * effective,
69 kernel_cap_t * inheritable,
70 kernel_cap_t * permitted)
71{
72 return;
73}
74
75static int dummy_acct (struct file *file)
76{
77 return 0;
78}
79
80static int dummy_capable (struct task_struct *tsk, int cap)
81{
82 if (cap_raised (tsk->cap_effective, cap))
83 return 0;
84 return -EPERM;
85}
86
87static int dummy_sysctl (ctl_table * table, int op)
88{
89 return 0;
90}
91
92static int dummy_quotactl (int cmds, int type, int id, struct super_block *sb)
93{
94 return 0;
95}
96
97static int dummy_quota_on (struct dentry *dentry)
98{
99 return 0;
100}
101
102static int dummy_syslog (int type)
103{
104 if ((type != 3 && type != 10) && current->euid)
105 return -EPERM;
106 return 0;
107}
108
109static int dummy_settime(struct timespec *ts, struct timezone *tz)
110{
111 if (!capable(CAP_SYS_TIME))
112 return -EPERM;
113 return 0;
114}
115
116static int dummy_vm_enough_memory(struct mm_struct *mm, long pages)
117{
118 int cap_sys_admin = 0;
119
120 if (dummy_capable(current, CAP_SYS_ADMIN) == 0)
121 cap_sys_admin = 1;
122 return __vm_enough_memory(mm, pages, cap_sys_admin);
123}
124
125static int dummy_bprm_alloc_security (struct linux_binprm *bprm)
126{
127 return 0;
128}
129
130static void dummy_bprm_free_security (struct linux_binprm *bprm)
131{
132 return;
133}
134
135static void dummy_bprm_apply_creds (struct linux_binprm *bprm, int unsafe)
136{
137 if (bprm->e_uid != current->uid || bprm->e_gid != current->gid) {
138 set_dumpable(current->mm, suid_dumpable);
139
140 if ((unsafe & ~LSM_UNSAFE_PTRACE_CAP) && !capable(CAP_SETUID)) {
141 bprm->e_uid = current->uid;
142 bprm->e_gid = current->gid;
143 }
144 }
145
146 current->suid = current->euid = current->fsuid = bprm->e_uid;
147 current->sgid = current->egid = current->fsgid = bprm->e_gid;
148
149 dummy_capget(current, &current->cap_effective, &current->cap_inheritable, &current->cap_permitted);
150}
151
152static void dummy_bprm_post_apply_creds (struct linux_binprm *bprm)
153{
154 return;
155}
156
157static int dummy_bprm_set_security (struct linux_binprm *bprm)
158{
159 return 0;
160}
161
162static int dummy_bprm_check_security (struct linux_binprm *bprm)
163{
164 return 0;
165}
166
167static int dummy_bprm_secureexec (struct linux_binprm *bprm)
168{
169 /* The new userland will simply use the value provided
170 in the AT_SECURE field to decide whether secure mode
171 is required. Hence, this logic is required to preserve
172 the legacy decision algorithm used by the old userland. */
173 return (current->euid != current->uid ||
174 current->egid != current->gid);
175}
176
177static int dummy_sb_alloc_security (struct super_block *sb)
178{
179 return 0;
180}
181
182static void dummy_sb_free_security (struct super_block *sb)
183{
184 return;
185}
186
187static int dummy_sb_copy_data (char *orig, char *copy)
188{
189 return 0;
190}
191
192static int dummy_sb_kern_mount (struct super_block *sb, void *data)
193{
194 return 0;
195}
196
197static int dummy_sb_show_options(struct seq_file *m, struct super_block *sb)
198{
199 return 0;
200}
201
202static int dummy_sb_statfs (struct dentry *dentry)
203{
204 return 0;
205}
206
207static int dummy_sb_mount (char *dev_name, struct path *path, char *type,
208 unsigned long flags, void *data)
209{
210 return 0;
211}
212
213static int dummy_sb_check_sb (struct vfsmount *mnt, struct path *path)
214{
215 return 0;
216}
217
218static int dummy_sb_umount (struct vfsmount *mnt, int flags)
219{
220 return 0;
221}
222
223static void dummy_sb_umount_close (struct vfsmount *mnt)
224{
225 return;
226}
227
228static void dummy_sb_umount_busy (struct vfsmount *mnt)
229{
230 return;
231}
232
233static void dummy_sb_post_remount (struct vfsmount *mnt, unsigned long flags,
234 void *data)
235{
236 return;
237}
238
239
240static void dummy_sb_post_addmount (struct vfsmount *mnt, struct path *path)
241{
242 return;
243}
244
245static int dummy_sb_pivotroot (struct path *old_path, struct path *new_path)
246{
247 return 0;
248}
249
250static void dummy_sb_post_pivotroot (struct path *old_path, struct path *new_path)
251{
252 return;
253}
254
255static int dummy_sb_set_mnt_opts(struct super_block *sb,
256 struct security_mnt_opts *opts)
257{
258 if (unlikely(opts->num_mnt_opts))
259 return -EOPNOTSUPP;
260 return 0;
261}
262
263static void dummy_sb_clone_mnt_opts(const struct super_block *oldsb,
264 struct super_block *newsb)
265{
266 return;
267}
268
269static int dummy_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
270{
271 return 0;
272}
273
274static int dummy_inode_alloc_security (struct inode *inode)
275{
276 return 0;
277}
278
279static void dummy_inode_free_security (struct inode *inode)
280{
281 return;
282}
283
284static int dummy_inode_init_security (struct inode *inode, struct inode *dir,
285 char **name, void **value, size_t *len)
286{
287 return -EOPNOTSUPP;
288}
289
290static int dummy_inode_create (struct inode *inode, struct dentry *dentry,
291 int mask)
292{
293 return 0;
294}
295
296static int dummy_inode_link (struct dentry *old_dentry, struct inode *inode,
297 struct dentry *new_dentry)
298{
299 return 0;
300}
301
302static int dummy_inode_unlink (struct inode *inode, struct dentry *dentry)
303{
304 return 0;
305}
306
307static int dummy_inode_symlink (struct inode *inode, struct dentry *dentry,
308 const char *name)
309{
310 return 0;
311}
312
313static int dummy_inode_mkdir (struct inode *inode, struct dentry *dentry,
314 int mask)
315{
316 return 0;
317}
318
319static int dummy_inode_rmdir (struct inode *inode, struct dentry *dentry)
320{
321 return 0;
322}
323
324static int dummy_inode_mknod (struct inode *inode, struct dentry *dentry,
325 int mode, dev_t dev)
326{
327 return 0;
328}
329
330static int dummy_inode_rename (struct inode *old_inode,
331 struct dentry *old_dentry,
332 struct inode *new_inode,
333 struct dentry *new_dentry)
334{
335 return 0;
336}
337
338static int dummy_inode_readlink (struct dentry *dentry)
339{
340 return 0;
341}
342
343static int dummy_inode_follow_link (struct dentry *dentry,
344 struct nameidata *nameidata)
345{
346 return 0;
347}
348
349static int dummy_inode_permission (struct inode *inode, int mask, struct nameidata *nd)
350{
351 return 0;
352}
353
354static int dummy_inode_setattr (struct dentry *dentry, struct iattr *iattr)
355{
356 return 0;
357}
358
359static int dummy_inode_getattr (struct vfsmount *mnt, struct dentry *dentry)
360{
361 return 0;
362}
363
364static void dummy_inode_delete (struct inode *ino)
365{
366 return;
367}
368
369static int dummy_inode_setxattr (struct dentry *dentry, const char *name,
370 const void *value, size_t size, int flags)
371{
372 if (!strncmp(name, XATTR_SECURITY_PREFIX,
373 sizeof(XATTR_SECURITY_PREFIX) - 1) &&
374 !capable(CAP_SYS_ADMIN))
375 return -EPERM;
376 return 0;
377}
378
379static void dummy_inode_post_setxattr (struct dentry *dentry, const char *name,
380 const void *value, size_t size,
381 int flags)
382{
383}
384
385static int dummy_inode_getxattr (struct dentry *dentry, const char *name)
386{
387 return 0;
388}
389
390static int dummy_inode_listxattr (struct dentry *dentry)
391{
392 return 0;
393}
394
395static int dummy_inode_removexattr (struct dentry *dentry, const char *name)
396{
397 if (!strncmp(name, XATTR_SECURITY_PREFIX,
398 sizeof(XATTR_SECURITY_PREFIX) - 1) &&
399 !capable(CAP_SYS_ADMIN))
400 return -EPERM;
401 return 0;
402}
403
404static int dummy_inode_need_killpriv(struct dentry *dentry)
405{
406 return 0;
407}
408
409static int dummy_inode_killpriv(struct dentry *dentry)
410{
411 return 0;
412}
413
414static int dummy_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
415{
416 return -EOPNOTSUPP;
417}
418
419static int dummy_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
420{
421 return -EOPNOTSUPP;
422}
423
424static int dummy_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
425{
426 return 0;
427}
428
429static void dummy_inode_getsecid(const struct inode *inode, u32 *secid)
430{
431 *secid = 0;
432}
433
434static int dummy_file_permission (struct file *file, int mask)
435{
436 return 0;
437}
438
439static int dummy_file_alloc_security (struct file *file)
440{
441 return 0;
442}
443
444static void dummy_file_free_security (struct file *file)
445{
446 return;
447}
448
449static int dummy_file_ioctl (struct file *file, unsigned int command,
450 unsigned long arg)
451{
452 return 0;
453}
454
455static int dummy_file_mmap (struct file *file, unsigned long reqprot,
456 unsigned long prot,
457 unsigned long flags,
458 unsigned long addr,
459 unsigned long addr_only)
460{
461 if ((addr < mmap_min_addr) && !capable(CAP_SYS_RAWIO))
462 return -EACCES;
463 return 0;
464}
465
466static int dummy_file_mprotect (struct vm_area_struct *vma,
467 unsigned long reqprot,
468 unsigned long prot)
469{
470 return 0;
471}
472
473static int dummy_file_lock (struct file *file, unsigned int cmd)
474{
475 return 0;
476}
477
478static int dummy_file_fcntl (struct file *file, unsigned int cmd,
479 unsigned long arg)
480{
481 return 0;
482}
483
484static int dummy_file_set_fowner (struct file *file)
485{
486 return 0;
487}
488
489static int dummy_file_send_sigiotask (struct task_struct *tsk,
490 struct fown_struct *fown, int sig)
491{
492 return 0;
493}
494
495static int dummy_file_receive (struct file *file)
496{
497 return 0;
498}
499
500static int dummy_dentry_open (struct file *file)
501{
502 return 0;
503}
504
505static int dummy_task_create (unsigned long clone_flags)
506{
507 return 0;
508}
509
510static int dummy_task_alloc_security (struct task_struct *p)
511{
512 return 0;
513}
514
515static void dummy_task_free_security (struct task_struct *p)
516{
517 return;
518}
519
520static int dummy_task_setuid (uid_t id0, uid_t id1, uid_t id2, int flags)
521{
522 return 0;
523}
524
525static int dummy_task_post_setuid (uid_t id0, uid_t id1, uid_t id2, int flags)
526{
527 dummy_capget(current, &current->cap_effective, &current->cap_inheritable, &current->cap_permitted);
528 return 0;
529}
530
531static int dummy_task_setgid (gid_t id0, gid_t id1, gid_t id2, int flags)
532{
533 return 0;
534}
535
536static int dummy_task_setpgid (struct task_struct *p, pid_t pgid)
537{
538 return 0;
539}
540
541static int dummy_task_getpgid (struct task_struct *p)
542{
543 return 0;
544}
545
546static int dummy_task_getsid (struct task_struct *p)
547{
548 return 0;
549}
550
551static void dummy_task_getsecid (struct task_struct *p, u32 *secid)
552{
553 *secid = 0;
554}
555
556static int dummy_task_setgroups (struct group_info *group_info)
557{
558 return 0;
559}
560
561static int dummy_task_setnice (struct task_struct *p, int nice)
562{
563 return 0;
564}
565
566static int dummy_task_setioprio (struct task_struct *p, int ioprio)
567{
568 return 0;
569}
570
571static int dummy_task_getioprio (struct task_struct *p)
572{
573 return 0;
574}
575
576static int dummy_task_setrlimit (unsigned int resource, struct rlimit *new_rlim)
577{
578 return 0;
579}
580
581static int dummy_task_setscheduler (struct task_struct *p, int policy,
582 struct sched_param *lp)
583{
584 return 0;
585}
586
587static int dummy_task_getscheduler (struct task_struct *p)
588{
589 return 0;
590}
591
592static int dummy_task_movememory (struct task_struct *p)
593{
594 return 0;
595}
596
597static int dummy_task_wait (struct task_struct *p)
598{
599 return 0;
600}
601
602static int dummy_task_kill (struct task_struct *p, struct siginfo *info,
603 int sig, u32 secid)
604{
605 return 0;
606}
607
608static int dummy_task_prctl (int option, unsigned long arg2, unsigned long arg3,
609 unsigned long arg4, unsigned long arg5, long *rc_p)
610{
611 switch (option) {
612 case PR_CAPBSET_READ:
613 *rc_p = (cap_valid(arg2) ? 1 : -EINVAL);
614 break;
615 case PR_GET_KEEPCAPS:
616 *rc_p = issecure(SECURE_KEEP_CAPS);
617 break;
618 case PR_SET_KEEPCAPS:
619 if (arg2 > 1)
620 *rc_p = -EINVAL;
621 else if (arg2)
622 current->securebits |= issecure_mask(SECURE_KEEP_CAPS);
623 else
624 current->securebits &=
625 ~issecure_mask(SECURE_KEEP_CAPS);
626 break;
627 default:
628 return 0;
629 }
630
631 return 1;
632}
633
634static void dummy_task_reparent_to_init (struct task_struct *p)
635{
636 p->euid = p->fsuid = 0;
637 return;
638}
639
640static void dummy_task_to_inode(struct task_struct *p, struct inode *inode)
641{ }
642
643static int dummy_ipc_permission (struct kern_ipc_perm *ipcp, short flag)
644{
645 return 0;
646}
647
648static void dummy_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
649{
650 *secid = 0;
651}
652
653static int dummy_msg_msg_alloc_security (struct msg_msg *msg)
654{
655 return 0;
656}
657
658static void dummy_msg_msg_free_security (struct msg_msg *msg)
659{
660 return;
661}
662
663static int dummy_msg_queue_alloc_security (struct msg_queue *msq)
664{
665 return 0;
666}
667
668static void dummy_msg_queue_free_security (struct msg_queue *msq)
669{
670 return;
671}
672
673static int dummy_msg_queue_associate (struct msg_queue *msq,
674 int msqflg)
675{
676 return 0;
677}
678
679static int dummy_msg_queue_msgctl (struct msg_queue *msq, int cmd)
680{
681 return 0;
682}
683
684static int dummy_msg_queue_msgsnd (struct msg_queue *msq, struct msg_msg *msg,
685 int msgflg)
686{
687 return 0;
688}
689
690static int dummy_msg_queue_msgrcv (struct msg_queue *msq, struct msg_msg *msg,
691 struct task_struct *target, long type,
692 int mode)
693{
694 return 0;
695}
696
697static int dummy_shm_alloc_security (struct shmid_kernel *shp)
698{
699 return 0;
700}
701
702static void dummy_shm_free_security (struct shmid_kernel *shp)
703{
704 return;
705}
706
707static int dummy_shm_associate (struct shmid_kernel *shp, int shmflg)
708{
709 return 0;
710}
711
712static int dummy_shm_shmctl (struct shmid_kernel *shp, int cmd)
713{
714 return 0;
715}
716
717static int dummy_shm_shmat (struct shmid_kernel *shp, char __user *shmaddr,
718 int shmflg)
719{
720 return 0;
721}
722
723static int dummy_sem_alloc_security (struct sem_array *sma)
724{
725 return 0;
726}
727
728static void dummy_sem_free_security (struct sem_array *sma)
729{
730 return;
731}
732
733static int dummy_sem_associate (struct sem_array *sma, int semflg)
734{
735 return 0;
736}
737
738static int dummy_sem_semctl (struct sem_array *sma, int cmd)
739{
740 return 0;
741}
742
743static int dummy_sem_semop (struct sem_array *sma,
744 struct sembuf *sops, unsigned nsops, int alter)
745{
746 return 0;
747}
748
749static int dummy_netlink_send (struct sock *sk, struct sk_buff *skb)
750{
751 NETLINK_CB(skb).eff_cap = current->cap_effective;
752 return 0;
753}
754
755static int dummy_netlink_recv (struct sk_buff *skb, int cap)
756{
757 if (!cap_raised (NETLINK_CB (skb).eff_cap, cap))
758 return -EPERM;
759 return 0;
760}
761
762#ifdef CONFIG_SECURITY_NETWORK
763static int dummy_unix_stream_connect (struct socket *sock,
764 struct socket *other,
765 struct sock *newsk)
766{
767 return 0;
768}
769
770static int dummy_unix_may_send (struct socket *sock,
771 struct socket *other)
772{
773 return 0;
774}
775
776static int dummy_socket_create (int family, int type,
777 int protocol, int kern)
778{
779 return 0;
780}
781
782static int dummy_socket_post_create (struct socket *sock, int family, int type,
783 int protocol, int kern)
784{
785 return 0;
786}
787
788static int dummy_socket_bind (struct socket *sock, struct sockaddr *address,
789 int addrlen)
790{
791 return 0;
792}
793
794static int dummy_socket_connect (struct socket *sock, struct sockaddr *address,
795 int addrlen)
796{
797 return 0;
798}
799
800static int dummy_socket_listen (struct socket *sock, int backlog)
801{
802 return 0;
803}
804
805static int dummy_socket_accept (struct socket *sock, struct socket *newsock)
806{
807 return 0;
808}
809
810static void dummy_socket_post_accept (struct socket *sock,
811 struct socket *newsock)
812{
813 return;
814}
815
816static int dummy_socket_sendmsg (struct socket *sock, struct msghdr *msg,
817 int size)
818{
819 return 0;
820}
821
822static int dummy_socket_recvmsg (struct socket *sock, struct msghdr *msg,
823 int size, int flags)
824{
825 return 0;
826}
827
828static int dummy_socket_getsockname (struct socket *sock)
829{
830 return 0;
831}
832
833static int dummy_socket_getpeername (struct socket *sock)
834{
835 return 0;
836}
837
838static int dummy_socket_setsockopt (struct socket *sock, int level, int optname)
839{
840 return 0;
841}
842
843static int dummy_socket_getsockopt (struct socket *sock, int level, int optname)
844{
845 return 0;
846}
847
848static int dummy_socket_shutdown (struct socket *sock, int how)
849{
850 return 0;
851}
852
853static int dummy_socket_sock_rcv_skb (struct sock *sk, struct sk_buff *skb)
854{
855 return 0;
856}
857
858static int dummy_socket_getpeersec_stream(struct socket *sock, char __user *optval,
859 int __user *optlen, unsigned len)
860{
861 return -ENOPROTOOPT;
862}
863
864static int dummy_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
865{
866 return -ENOPROTOOPT;
867}
868
869static inline int dummy_sk_alloc_security (struct sock *sk, int family, gfp_t priority)
870{
871 return 0;
872}
873
874static inline void dummy_sk_free_security (struct sock *sk)
875{
876}
877
878static inline void dummy_sk_clone_security (const struct sock *sk, struct sock *newsk)
879{
880}
881
882static inline void dummy_sk_getsecid(struct sock *sk, u32 *secid)
883{
884}
885
886static inline void dummy_sock_graft(struct sock* sk, struct socket *parent)
887{
888}
889
890static inline int dummy_inet_conn_request(struct sock *sk,
891 struct sk_buff *skb, struct request_sock *req)
892{
893 return 0;
894}
895
896static inline void dummy_inet_csk_clone(struct sock *newsk,
897 const struct request_sock *req)
898{
899}
900
901static inline void dummy_inet_conn_established(struct sock *sk,
902 struct sk_buff *skb)
903{
904}
905
906static inline void dummy_req_classify_flow(const struct request_sock *req,
907 struct flowi *fl)
908{
909}
910#endif /* CONFIG_SECURITY_NETWORK */
911
912#ifdef CONFIG_SECURITY_NETWORK_XFRM
913static int dummy_xfrm_policy_alloc_security(struct xfrm_sec_ctx **ctxp,
914 struct xfrm_user_sec_ctx *sec_ctx)
915{
916 return 0;
917}
918
919static inline int dummy_xfrm_policy_clone_security(struct xfrm_sec_ctx *old_ctx,
920 struct xfrm_sec_ctx **new_ctxp)
921{
922 return 0;
923}
924
925static void dummy_xfrm_policy_free_security(struct xfrm_sec_ctx *ctx)
926{
927}
928
929static int dummy_xfrm_policy_delete_security(struct xfrm_sec_ctx *ctx)
930{
931 return 0;
932}
933
934static int dummy_xfrm_state_alloc_security(struct xfrm_state *x,
935 struct xfrm_user_sec_ctx *sec_ctx, u32 secid)
936{
937 return 0;
938}
939
940static void dummy_xfrm_state_free_security(struct xfrm_state *x)
941{
942}
943
944static int dummy_xfrm_state_delete_security(struct xfrm_state *x)
945{
946 return 0;
947}
948
949static int dummy_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx,
950 u32 sk_sid, u8 dir)
951{
952 return 0;
953}
954
955static int dummy_xfrm_state_pol_flow_match(struct xfrm_state *x,
956 struct xfrm_policy *xp, struct flowi *fl)
957{
958 return 1;
959}
960
961static int dummy_xfrm_decode_session(struct sk_buff *skb, u32 *fl, int ckall)
962{
963 return 0;
964}
965
966#endif /* CONFIG_SECURITY_NETWORK_XFRM */
967static int dummy_register_security (const char *name, struct security_operations *ops)
968{
969 return -EINVAL;
970}
971
972static void dummy_d_instantiate (struct dentry *dentry, struct inode *inode)
973{
974 return;
975}
976
977static int dummy_getprocattr(struct task_struct *p, char *name, char **value)
978{
979 return -EINVAL;
980}
981
982static int dummy_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
983{
984 return -EINVAL;
985}
986
987static int dummy_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
988{
989 return -EOPNOTSUPP;
990}
991
992static int dummy_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
993{
994 return -EOPNOTSUPP;
995}
996
997static void dummy_release_secctx(char *secdata, u32 seclen)
998{
999}
1000
1001#ifdef CONFIG_KEYS
1002static inline int dummy_key_alloc(struct key *key, struct task_struct *ctx,
1003 unsigned long flags)
1004{
1005 return 0;
1006}
1007
1008static inline void dummy_key_free(struct key *key)
1009{
1010}
1011
1012static inline int dummy_key_permission(key_ref_t key_ref,
1013 struct task_struct *context,
1014 key_perm_t perm)
1015{
1016 return 0;
1017}
1018
1019static int dummy_key_getsecurity(struct key *key, char **_buffer)
1020{
1021 *_buffer = NULL;
1022 return 0;
1023}
1024
1025#endif /* CONFIG_KEYS */
1026
1027#ifdef CONFIG_AUDIT
1028static inline int dummy_audit_rule_init(u32 field, u32 op, char *rulestr,
1029 void **lsmrule)
1030{
1031 return 0;
1032}
1033
1034static inline int dummy_audit_rule_known(struct audit_krule *krule)
1035{
1036 return 0;
1037}
1038
1039static inline int dummy_audit_rule_match(u32 secid, u32 field, u32 op,
1040 void *lsmrule,
1041 struct audit_context *actx)
1042{
1043 return 0;
1044}
1045
1046static inline void dummy_audit_rule_free(void *lsmrule)
1047{ }
1048
1049#endif /* CONFIG_AUDIT */
1050
1051struct security_operations dummy_security_ops = {
1052 .name = "dummy",
1053};
1054
1055#define set_to_dummy_if_null(ops, function) \
1056 do { \
1057 if (!ops->function) { \
1058 ops->function = dummy_##function; \
1059 pr_debug("Had to override the " #function \
1060 " security operation with the dummy one.\n");\
1061 } \
1062 } while (0)
1063
1064void security_fixup_ops (struct security_operations *ops)
1065{
1066 set_to_dummy_if_null(ops, ptrace);
1067 set_to_dummy_if_null(ops, capget);
1068 set_to_dummy_if_null(ops, capset_check);
1069 set_to_dummy_if_null(ops, capset_set);
1070 set_to_dummy_if_null(ops, acct);
1071 set_to_dummy_if_null(ops, capable);
1072 set_to_dummy_if_null(ops, quotactl);
1073 set_to_dummy_if_null(ops, quota_on);
1074 set_to_dummy_if_null(ops, sysctl);
1075 set_to_dummy_if_null(ops, syslog);
1076 set_to_dummy_if_null(ops, settime);
1077 set_to_dummy_if_null(ops, vm_enough_memory);
1078 set_to_dummy_if_null(ops, bprm_alloc_security);
1079 set_to_dummy_if_null(ops, bprm_free_security);
1080 set_to_dummy_if_null(ops, bprm_apply_creds);
1081 set_to_dummy_if_null(ops, bprm_post_apply_creds);
1082 set_to_dummy_if_null(ops, bprm_set_security);
1083 set_to_dummy_if_null(ops, bprm_check_security);
1084 set_to_dummy_if_null(ops, bprm_secureexec);
1085 set_to_dummy_if_null(ops, sb_alloc_security);
1086 set_to_dummy_if_null(ops, sb_free_security);
1087 set_to_dummy_if_null(ops, sb_copy_data);
1088 set_to_dummy_if_null(ops, sb_kern_mount);
1089 set_to_dummy_if_null(ops, sb_show_options);
1090 set_to_dummy_if_null(ops, sb_statfs);
1091 set_to_dummy_if_null(ops, sb_mount);
1092 set_to_dummy_if_null(ops, sb_check_sb);
1093 set_to_dummy_if_null(ops, sb_umount);
1094 set_to_dummy_if_null(ops, sb_umount_close);
1095 set_to_dummy_if_null(ops, sb_umount_busy);
1096 set_to_dummy_if_null(ops, sb_post_remount);
1097 set_to_dummy_if_null(ops, sb_post_addmount);
1098 set_to_dummy_if_null(ops, sb_pivotroot);
1099 set_to_dummy_if_null(ops, sb_post_pivotroot);
1100 set_to_dummy_if_null(ops, sb_set_mnt_opts);
1101 set_to_dummy_if_null(ops, sb_clone_mnt_opts);
1102 set_to_dummy_if_null(ops, sb_parse_opts_str);
1103 set_to_dummy_if_null(ops, inode_alloc_security);
1104 set_to_dummy_if_null(ops, inode_free_security);
1105 set_to_dummy_if_null(ops, inode_init_security);
1106 set_to_dummy_if_null(ops, inode_create);
1107 set_to_dummy_if_null(ops, inode_link);
1108 set_to_dummy_if_null(ops, inode_unlink);
1109 set_to_dummy_if_null(ops, inode_symlink);
1110 set_to_dummy_if_null(ops, inode_mkdir);
1111 set_to_dummy_if_null(ops, inode_rmdir);
1112 set_to_dummy_if_null(ops, inode_mknod);
1113 set_to_dummy_if_null(ops, inode_rename);
1114 set_to_dummy_if_null(ops, inode_readlink);
1115 set_to_dummy_if_null(ops, inode_follow_link);
1116 set_to_dummy_if_null(ops, inode_permission);
1117 set_to_dummy_if_null(ops, inode_setattr);
1118 set_to_dummy_if_null(ops, inode_getattr);
1119 set_to_dummy_if_null(ops, inode_delete);
1120 set_to_dummy_if_null(ops, inode_setxattr);
1121 set_to_dummy_if_null(ops, inode_post_setxattr);
1122 set_to_dummy_if_null(ops, inode_getxattr);
1123 set_to_dummy_if_null(ops, inode_listxattr);
1124 set_to_dummy_if_null(ops, inode_removexattr);
1125 set_to_dummy_if_null(ops, inode_need_killpriv);
1126 set_to_dummy_if_null(ops, inode_killpriv);
1127 set_to_dummy_if_null(ops, inode_getsecurity);
1128 set_to_dummy_if_null(ops, inode_setsecurity);
1129 set_to_dummy_if_null(ops, inode_listsecurity);
1130 set_to_dummy_if_null(ops, inode_getsecid);
1131 set_to_dummy_if_null(ops, file_permission);
1132 set_to_dummy_if_null(ops, file_alloc_security);
1133 set_to_dummy_if_null(ops, file_free_security);
1134 set_to_dummy_if_null(ops, file_ioctl);
1135 set_to_dummy_if_null(ops, file_mmap);
1136 set_to_dummy_if_null(ops, file_mprotect);
1137 set_to_dummy_if_null(ops, file_lock);
1138 set_to_dummy_if_null(ops, file_fcntl);
1139 set_to_dummy_if_null(ops, file_set_fowner);
1140 set_to_dummy_if_null(ops, file_send_sigiotask);
1141 set_to_dummy_if_null(ops, file_receive);
1142 set_to_dummy_if_null(ops, dentry_open);
1143 set_to_dummy_if_null(ops, task_create);
1144 set_to_dummy_if_null(ops, task_alloc_security);
1145 set_to_dummy_if_null(ops, task_free_security);
1146 set_to_dummy_if_null(ops, task_setuid);
1147 set_to_dummy_if_null(ops, task_post_setuid);
1148 set_to_dummy_if_null(ops, task_setgid);
1149 set_to_dummy_if_null(ops, task_setpgid);
1150 set_to_dummy_if_null(ops, task_getpgid);
1151 set_to_dummy_if_null(ops, task_getsid);
1152 set_to_dummy_if_null(ops, task_getsecid);
1153 set_to_dummy_if_null(ops, task_setgroups);
1154 set_to_dummy_if_null(ops, task_setnice);
1155 set_to_dummy_if_null(ops, task_setioprio);
1156 set_to_dummy_if_null(ops, task_getioprio);
1157 set_to_dummy_if_null(ops, task_setrlimit);
1158 set_to_dummy_if_null(ops, task_setscheduler);
1159 set_to_dummy_if_null(ops, task_getscheduler);
1160 set_to_dummy_if_null(ops, task_movememory);
1161 set_to_dummy_if_null(ops, task_wait);
1162 set_to_dummy_if_null(ops, task_kill);
1163 set_to_dummy_if_null(ops, task_prctl);
1164 set_to_dummy_if_null(ops, task_reparent_to_init);
1165 set_to_dummy_if_null(ops, task_to_inode);
1166 set_to_dummy_if_null(ops, ipc_permission);
1167 set_to_dummy_if_null(ops, ipc_getsecid);
1168 set_to_dummy_if_null(ops, msg_msg_alloc_security);
1169 set_to_dummy_if_null(ops, msg_msg_free_security);
1170 set_to_dummy_if_null(ops, msg_queue_alloc_security);
1171 set_to_dummy_if_null(ops, msg_queue_free_security);
1172 set_to_dummy_if_null(ops, msg_queue_associate);
1173 set_to_dummy_if_null(ops, msg_queue_msgctl);
1174 set_to_dummy_if_null(ops, msg_queue_msgsnd);
1175 set_to_dummy_if_null(ops, msg_queue_msgrcv);
1176 set_to_dummy_if_null(ops, shm_alloc_security);
1177 set_to_dummy_if_null(ops, shm_free_security);
1178 set_to_dummy_if_null(ops, shm_associate);
1179 set_to_dummy_if_null(ops, shm_shmctl);
1180 set_to_dummy_if_null(ops, shm_shmat);
1181 set_to_dummy_if_null(ops, sem_alloc_security);
1182 set_to_dummy_if_null(ops, sem_free_security);
1183 set_to_dummy_if_null(ops, sem_associate);
1184 set_to_dummy_if_null(ops, sem_semctl);
1185 set_to_dummy_if_null(ops, sem_semop);
1186 set_to_dummy_if_null(ops, netlink_send);
1187 set_to_dummy_if_null(ops, netlink_recv);
1188 set_to_dummy_if_null(ops, register_security);
1189 set_to_dummy_if_null(ops, d_instantiate);
1190 set_to_dummy_if_null(ops, getprocattr);
1191 set_to_dummy_if_null(ops, setprocattr);
1192 set_to_dummy_if_null(ops, secid_to_secctx);
1193 set_to_dummy_if_null(ops, secctx_to_secid);
1194 set_to_dummy_if_null(ops, release_secctx);
1195#ifdef CONFIG_SECURITY_NETWORK
1196 set_to_dummy_if_null(ops, unix_stream_connect);
1197 set_to_dummy_if_null(ops, unix_may_send);
1198 set_to_dummy_if_null(ops, socket_create);
1199 set_to_dummy_if_null(ops, socket_post_create);
1200 set_to_dummy_if_null(ops, socket_bind);
1201 set_to_dummy_if_null(ops, socket_connect);
1202 set_to_dummy_if_null(ops, socket_listen);
1203 set_to_dummy_if_null(ops, socket_accept);
1204 set_to_dummy_if_null(ops, socket_post_accept);
1205 set_to_dummy_if_null(ops, socket_sendmsg);
1206 set_to_dummy_if_null(ops, socket_recvmsg);
1207 set_to_dummy_if_null(ops, socket_getsockname);
1208 set_to_dummy_if_null(ops, socket_getpeername);
1209 set_to_dummy_if_null(ops, socket_setsockopt);
1210 set_to_dummy_if_null(ops, socket_getsockopt);
1211 set_to_dummy_if_null(ops, socket_shutdown);
1212 set_to_dummy_if_null(ops, socket_sock_rcv_skb);
1213 set_to_dummy_if_null(ops, socket_getpeersec_stream);
1214 set_to_dummy_if_null(ops, socket_getpeersec_dgram);
1215 set_to_dummy_if_null(ops, sk_alloc_security);
1216 set_to_dummy_if_null(ops, sk_free_security);
1217 set_to_dummy_if_null(ops, sk_clone_security);
1218 set_to_dummy_if_null(ops, sk_getsecid);
1219 set_to_dummy_if_null(ops, sock_graft);
1220 set_to_dummy_if_null(ops, inet_conn_request);
1221 set_to_dummy_if_null(ops, inet_csk_clone);
1222 set_to_dummy_if_null(ops, inet_conn_established);
1223 set_to_dummy_if_null(ops, req_classify_flow);
1224 #endif /* CONFIG_SECURITY_NETWORK */
1225#ifdef CONFIG_SECURITY_NETWORK_XFRM
1226 set_to_dummy_if_null(ops, xfrm_policy_alloc_security);
1227 set_to_dummy_if_null(ops, xfrm_policy_clone_security);
1228 set_to_dummy_if_null(ops, xfrm_policy_free_security);
1229 set_to_dummy_if_null(ops, xfrm_policy_delete_security);
1230 set_to_dummy_if_null(ops, xfrm_state_alloc_security);
1231 set_to_dummy_if_null(ops, xfrm_state_free_security);
1232 set_to_dummy_if_null(ops, xfrm_state_delete_security);
1233 set_to_dummy_if_null(ops, xfrm_policy_lookup);
1234 set_to_dummy_if_null(ops, xfrm_state_pol_flow_match);
1235 set_to_dummy_if_null(ops, xfrm_decode_session);
1236#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1237#ifdef CONFIG_KEYS
1238 set_to_dummy_if_null(ops, key_alloc);
1239 set_to_dummy_if_null(ops, key_free);
1240 set_to_dummy_if_null(ops, key_permission);
1241 set_to_dummy_if_null(ops, key_getsecurity);
1242#endif /* CONFIG_KEYS */
1243#ifdef CONFIG_AUDIT
1244 set_to_dummy_if_null(ops, audit_rule_init);
1245 set_to_dummy_if_null(ops, audit_rule_known);
1246 set_to_dummy_if_null(ops, audit_rule_match);
1247 set_to_dummy_if_null(ops, audit_rule_free);
1248#endif
1249}
1250
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-15 06:21:25 -0500