CRED: Fix regression in cap_capable() as shown up by sys_faccessat() [ver #2]
[linux-3.10.git] / security / security.c
1 /*
2  * Security plug functions
3  *
4  * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
5  * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com>
6  * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
7  *
8  *      This program is free software; you can redistribute it and/or modify
9  *      it under the terms of the GNU General Public License as published by
10  *      the Free Software Foundation; either version 2 of the License, or
11  *      (at your option) any later version.
12  */
13
14 #include <linux/capability.h>
15 #include <linux/module.h>
16 #include <linux/init.h>
17 #include <linux/kernel.h>
18 #include <linux/security.h>
19
20 /* Boot-time LSM user choice */
21 static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1];
22
23 /* things that live in capability.c */
24 extern struct security_operations default_security_ops;
25 extern void security_fixup_ops(struct security_operations *ops);
26
27 struct security_operations *security_ops;       /* Initialized to NULL */
28
29 /* amount of vm to protect from userspace access */
30 unsigned long mmap_min_addr = CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR;
31
32 static inline int verify(struct security_operations *ops)
33 {
34         /* verify the security_operations structure exists */
35         if (!ops)
36                 return -EINVAL;
37         security_fixup_ops(ops);
38         return 0;
39 }
40
41 static void __init do_security_initcalls(void)
42 {
43         initcall_t *call;
44         call = __security_initcall_start;
45         while (call < __security_initcall_end) {
46                 (*call) ();
47                 call++;
48         }
49 }
50
51 /**
52  * security_init - initializes the security framework
53  *
54  * This should be called early in the kernel initialization sequence.
55  */
56 int __init security_init(void)
57 {
58         printk(KERN_INFO "Security Framework initialized\n");
59
60         security_fixup_ops(&default_security_ops);
61         security_ops = &default_security_ops;
62         do_security_initcalls();
63
64         return 0;
65 }
66
67 /* Save user chosen LSM */
68 static int __init choose_lsm(char *str)
69 {
70         strncpy(chosen_lsm, str, SECURITY_NAME_MAX);
71         return 1;
72 }
73 __setup("security=", choose_lsm);
74
75 /**
76  * security_module_enable - Load given security module on boot ?
77  * @ops: a pointer to the struct security_operations that is to be checked.
78  *
79  * Each LSM must pass this method before registering its own operations
80  * to avoid security registration races. This method may also be used
81  * to check if your LSM is currently loaded during kernel initialization.
82  *
83  * Return true if:
84  *      -The passed LSM is the one chosen by user at boot time,
85  *      -or user didn't specify a specific LSM and we're the first to ask
86  *       for registration permission,
87  *      -or the passed LSM is currently loaded.
88  * Otherwise, return false.
89  */
90 int __init security_module_enable(struct security_operations *ops)
91 {
92         if (!*chosen_lsm)
93                 strncpy(chosen_lsm, ops->name, SECURITY_NAME_MAX);
94         else if (strncmp(ops->name, chosen_lsm, SECURITY_NAME_MAX))
95                 return 0;
96
97         return 1;
98 }
99
100 /**
101  * register_security - registers a security framework with the kernel
102  * @ops: a pointer to the struct security_options that is to be registered
103  *
104  * This function allows a security module to register itself with the
105  * kernel security subsystem.  Some rudimentary checking is done on the @ops
106  * value passed to this function. You'll need to check first if your LSM
107  * is allowed to register its @ops by calling security_module_enable(@ops).
108  *
109  * If there is already a security module registered with the kernel,
110  * an error will be returned.  Otherwise %0 is returned on success.
111  */
112 int register_security(struct security_operations *ops)
113 {
114         if (verify(ops)) {
115                 printk(KERN_DEBUG "%s could not verify "
116                        "security_operations structure.\n", __func__);
117                 return -EINVAL;
118         }
119
120         if (security_ops != &default_security_ops)
121                 return -EAGAIN;
122
123         security_ops = ops;
124
125         return 0;
126 }
127
128 /* Security operations */
129
130 int security_ptrace_may_access(struct task_struct *child, unsigned int mode)
131 {
132         return security_ops->ptrace_may_access(child, mode);
133 }
134
135 int security_ptrace_traceme(struct task_struct *parent)
136 {
137         return security_ops->ptrace_traceme(parent);
138 }
139
140 int security_capget(struct task_struct *target,
141                      kernel_cap_t *effective,
142                      kernel_cap_t *inheritable,
143                      kernel_cap_t *permitted)
144 {
145         return security_ops->capget(target, effective, inheritable, permitted);
146 }
147
148 int security_capset(struct cred *new, const struct cred *old,
149                     const kernel_cap_t *effective,
150                     const kernel_cap_t *inheritable,
151                     const kernel_cap_t *permitted)
152 {
153         return security_ops->capset(new, old,
154                                     effective, inheritable, permitted);
155 }
156
157 int security_capable(int cap)
158 {
159         return security_ops->capable(cap, SECURITY_CAP_AUDIT);
160 }
161
162 int security_task_capable(struct task_struct *tsk, int cap)
163 {
164         const struct cred *cred;
165         int ret;
166
167         cred = get_task_cred(tsk);
168         ret = security_ops->task_capable(tsk, cred, cap, SECURITY_CAP_AUDIT);
169         put_cred(cred);
170         return ret;
171 }
172
173 int security_task_capable_noaudit(struct task_struct *tsk, int cap)
174 {
175         const struct cred *cred;
176         int ret;
177
178         cred = get_task_cred(tsk);
179         ret = security_ops->task_capable(tsk, cred, cap, SECURITY_CAP_NOAUDIT);
180         put_cred(cred);
181         return ret;
182 }
183
184 int security_acct(struct file *file)
185 {
186         return security_ops->acct(file);
187 }
188
189 int security_sysctl(struct ctl_table *table, int op)
190 {
191         return security_ops->sysctl(table, op);
192 }
193
194 int security_quotactl(int cmds, int type, int id, struct super_block *sb)
195 {
196         return security_ops->quotactl(cmds, type, id, sb);
197 }
198
199 int security_quota_on(struct dentry *dentry)
200 {
201         return security_ops->quota_on(dentry);
202 }
203
204 int security_syslog(int type)
205 {
206         return security_ops->syslog(type);
207 }
208
209 int security_settime(struct timespec *ts, struct timezone *tz)
210 {
211         return security_ops->settime(ts, tz);
212 }
213
214 int security_vm_enough_memory(long pages)
215 {
216         WARN_ON(current->mm == NULL);
217         return security_ops->vm_enough_memory(current->mm, pages);
218 }
219
220 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
221 {
222         WARN_ON(mm == NULL);
223         return security_ops->vm_enough_memory(mm, pages);
224 }
225
226 int security_vm_enough_memory_kern(long pages)
227 {
228         /* If current->mm is a kernel thread then we will pass NULL,
229            for this specific case that is fine */
230         return security_ops->vm_enough_memory(current->mm, pages);
231 }
232
233 int security_bprm_set_creds(struct linux_binprm *bprm)
234 {
235         return security_ops->bprm_set_creds(bprm);
236 }
237
238 int security_bprm_check(struct linux_binprm *bprm)
239 {
240         return security_ops->bprm_check_security(bprm);
241 }
242
243 void security_bprm_committing_creds(struct linux_binprm *bprm)
244 {
245         security_ops->bprm_committing_creds(bprm);
246 }
247
248 void security_bprm_committed_creds(struct linux_binprm *bprm)
249 {
250         security_ops->bprm_committed_creds(bprm);
251 }
252
253 int security_bprm_secureexec(struct linux_binprm *bprm)
254 {
255         return security_ops->bprm_secureexec(bprm);
256 }
257
258 int security_sb_alloc(struct super_block *sb)
259 {
260         return security_ops->sb_alloc_security(sb);
261 }
262
263 void security_sb_free(struct super_block *sb)
264 {
265         security_ops->sb_free_security(sb);
266 }
267
268 int security_sb_copy_data(char *orig, char *copy)
269 {
270         return security_ops->sb_copy_data(orig, copy);
271 }
272 EXPORT_SYMBOL(security_sb_copy_data);
273
274 int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
275 {
276         return security_ops->sb_kern_mount(sb, flags, data);
277 }
278
279 int security_sb_show_options(struct seq_file *m, struct super_block *sb)
280 {
281         return security_ops->sb_show_options(m, sb);
282 }
283
284 int security_sb_statfs(struct dentry *dentry)
285 {
286         return security_ops->sb_statfs(dentry);
287 }
288
289 int security_sb_mount(char *dev_name, struct path *path,
290                        char *type, unsigned long flags, void *data)
291 {
292         return security_ops->sb_mount(dev_name, path, type, flags, data);
293 }
294
295 int security_sb_check_sb(struct vfsmount *mnt, struct path *path)
296 {
297         return security_ops->sb_check_sb(mnt, path);
298 }
299
300 int security_sb_umount(struct vfsmount *mnt, int flags)
301 {
302         return security_ops->sb_umount(mnt, flags);
303 }
304
305 void security_sb_umount_close(struct vfsmount *mnt)
306 {
307         security_ops->sb_umount_close(mnt);
308 }
309
310 void security_sb_umount_busy(struct vfsmount *mnt)
311 {
312         security_ops->sb_umount_busy(mnt);
313 }
314
315 void security_sb_post_remount(struct vfsmount *mnt, unsigned long flags, void *data)
316 {
317         security_ops->sb_post_remount(mnt, flags, data);
318 }
319
320 void security_sb_post_addmount(struct vfsmount *mnt, struct path *mountpoint)
321 {
322         security_ops->sb_post_addmount(mnt, mountpoint);
323 }
324
325 int security_sb_pivotroot(struct path *old_path, struct path *new_path)
326 {
327         return security_ops->sb_pivotroot(old_path, new_path);
328 }
329
330 void security_sb_post_pivotroot(struct path *old_path, struct path *new_path)
331 {
332         security_ops->sb_post_pivotroot(old_path, new_path);
333 }
334
335 int security_sb_set_mnt_opts(struct super_block *sb,
336                                 struct security_mnt_opts *opts)
337 {
338         return security_ops->sb_set_mnt_opts(sb, opts);
339 }
340 EXPORT_SYMBOL(security_sb_set_mnt_opts);
341
342 void security_sb_clone_mnt_opts(const struct super_block *oldsb,
343                                 struct super_block *newsb)
344 {
345         security_ops->sb_clone_mnt_opts(oldsb, newsb);
346 }
347 EXPORT_SYMBOL(security_sb_clone_mnt_opts);
348
349 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
350 {
351         return security_ops->sb_parse_opts_str(options, opts);
352 }
353 EXPORT_SYMBOL(security_sb_parse_opts_str);
354
355 int security_inode_alloc(struct inode *inode)
356 {
357         inode->i_security = NULL;
358         return security_ops->inode_alloc_security(inode);
359 }
360
361 void security_inode_free(struct inode *inode)
362 {
363         security_ops->inode_free_security(inode);
364 }
365
366 int security_inode_init_security(struct inode *inode, struct inode *dir,
367                                   char **name, void **value, size_t *len)
368 {
369         if (unlikely(IS_PRIVATE(inode)))
370                 return -EOPNOTSUPP;
371         return security_ops->inode_init_security(inode, dir, name, value, len);
372 }
373 EXPORT_SYMBOL(security_inode_init_security);
374
375 int security_inode_create(struct inode *dir, struct dentry *dentry, int mode)
376 {
377         if (unlikely(IS_PRIVATE(dir)))
378                 return 0;
379         return security_ops->inode_create(dir, dentry, mode);
380 }
381
382 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
383                          struct dentry *new_dentry)
384 {
385         if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
386                 return 0;
387         return security_ops->inode_link(old_dentry, dir, new_dentry);
388 }
389
390 int security_inode_unlink(struct inode *dir, struct dentry *dentry)
391 {
392         if (unlikely(IS_PRIVATE(dentry->d_inode)))
393                 return 0;
394         return security_ops->inode_unlink(dir, dentry);
395 }
396
397 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
398                             const char *old_name)
399 {
400         if (unlikely(IS_PRIVATE(dir)))
401                 return 0;
402         return security_ops->inode_symlink(dir, dentry, old_name);
403 }
404
405 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode)
406 {
407         if (unlikely(IS_PRIVATE(dir)))
408                 return 0;
409         return security_ops->inode_mkdir(dir, dentry, mode);
410 }
411
412 int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
413 {
414         if (unlikely(IS_PRIVATE(dentry->d_inode)))
415                 return 0;
416         return security_ops->inode_rmdir(dir, dentry);
417 }
418
419 int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
420 {
421         if (unlikely(IS_PRIVATE(dir)))
422                 return 0;
423         return security_ops->inode_mknod(dir, dentry, mode, dev);
424 }
425
426 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
427                            struct inode *new_dir, struct dentry *new_dentry)
428 {
429         if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
430             (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
431                 return 0;
432         return security_ops->inode_rename(old_dir, old_dentry,
433                                            new_dir, new_dentry);
434 }
435
436 int security_inode_readlink(struct dentry *dentry)
437 {
438         if (unlikely(IS_PRIVATE(dentry->d_inode)))
439                 return 0;
440         return security_ops->inode_readlink(dentry);
441 }
442
443 int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
444 {
445         if (unlikely(IS_PRIVATE(dentry->d_inode)))
446                 return 0;
447         return security_ops->inode_follow_link(dentry, nd);
448 }
449
450 int security_inode_permission(struct inode *inode, int mask)
451 {
452         if (unlikely(IS_PRIVATE(inode)))
453                 return 0;
454         return security_ops->inode_permission(inode, mask);
455 }
456
457 int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
458 {
459         if (unlikely(IS_PRIVATE(dentry->d_inode)))
460                 return 0;
461         return security_ops->inode_setattr(dentry, attr);
462 }
463 EXPORT_SYMBOL_GPL(security_inode_setattr);
464
465 int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
466 {
467         if (unlikely(IS_PRIVATE(dentry->d_inode)))
468                 return 0;
469         return security_ops->inode_getattr(mnt, dentry);
470 }
471
472 void security_inode_delete(struct inode *inode)
473 {
474         if (unlikely(IS_PRIVATE(inode)))
475                 return;
476         security_ops->inode_delete(inode);
477 }
478
479 int security_inode_setxattr(struct dentry *dentry, const char *name,
480                             const void *value, size_t size, int flags)
481 {
482         if (unlikely(IS_PRIVATE(dentry->d_inode)))
483                 return 0;
484         return security_ops->inode_setxattr(dentry, name, value, size, flags);
485 }
486
487 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
488                                   const void *value, size_t size, int flags)
489 {
490         if (unlikely(IS_PRIVATE(dentry->d_inode)))
491                 return;
492         security_ops->inode_post_setxattr(dentry, name, value, size, flags);
493 }
494
495 int security_inode_getxattr(struct dentry *dentry, const char *name)
496 {
497         if (unlikely(IS_PRIVATE(dentry->d_inode)))
498                 return 0;
499         return security_ops->inode_getxattr(dentry, name);
500 }
501
502 int security_inode_listxattr(struct dentry *dentry)
503 {
504         if (unlikely(IS_PRIVATE(dentry->d_inode)))
505                 return 0;
506         return security_ops->inode_listxattr(dentry);
507 }
508
509 int security_inode_removexattr(struct dentry *dentry, const char *name)
510 {
511         if (unlikely(IS_PRIVATE(dentry->d_inode)))
512                 return 0;
513         return security_ops->inode_removexattr(dentry, name);
514 }
515
516 int security_inode_need_killpriv(struct dentry *dentry)
517 {
518         return security_ops->inode_need_killpriv(dentry);
519 }
520
521 int security_inode_killpriv(struct dentry *dentry)
522 {
523         return security_ops->inode_killpriv(dentry);
524 }
525
526 int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
527 {
528         if (unlikely(IS_PRIVATE(inode)))
529                 return 0;
530         return security_ops->inode_getsecurity(inode, name, buffer, alloc);
531 }
532
533 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
534 {
535         if (unlikely(IS_PRIVATE(inode)))
536                 return 0;
537         return security_ops->inode_setsecurity(inode, name, value, size, flags);
538 }
539
540 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
541 {
542         if (unlikely(IS_PRIVATE(inode)))
543                 return 0;
544         return security_ops->inode_listsecurity(inode, buffer, buffer_size);
545 }
546
547 void security_inode_getsecid(const struct inode *inode, u32 *secid)
548 {
549         security_ops->inode_getsecid(inode, secid);
550 }
551
552 int security_file_permission(struct file *file, int mask)
553 {
554         return security_ops->file_permission(file, mask);
555 }
556
557 int security_file_alloc(struct file *file)
558 {
559         return security_ops->file_alloc_security(file);
560 }
561
562 void security_file_free(struct file *file)
563 {
564         security_ops->file_free_security(file);
565 }
566
567 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
568 {
569         return security_ops->file_ioctl(file, cmd, arg);
570 }
571
572 int security_file_mmap(struct file *file, unsigned long reqprot,
573                         unsigned long prot, unsigned long flags,
574                         unsigned long addr, unsigned long addr_only)
575 {
576         return security_ops->file_mmap(file, reqprot, prot, flags, addr, addr_only);
577 }
578
579 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
580                             unsigned long prot)
581 {
582         return security_ops->file_mprotect(vma, reqprot, prot);
583 }
584
585 int security_file_lock(struct file *file, unsigned int cmd)
586 {
587         return security_ops->file_lock(file, cmd);
588 }
589
590 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
591 {
592         return security_ops->file_fcntl(file, cmd, arg);
593 }
594
595 int security_file_set_fowner(struct file *file)
596 {
597         return security_ops->file_set_fowner(file);
598 }
599
600 int security_file_send_sigiotask(struct task_struct *tsk,
601                                   struct fown_struct *fown, int sig)
602 {
603         return security_ops->file_send_sigiotask(tsk, fown, sig);
604 }
605
606 int security_file_receive(struct file *file)
607 {
608         return security_ops->file_receive(file);
609 }
610
611 int security_dentry_open(struct file *file, const struct cred *cred)
612 {
613         return security_ops->dentry_open(file, cred);
614 }
615
616 int security_task_create(unsigned long clone_flags)
617 {
618         return security_ops->task_create(clone_flags);
619 }
620
621 void security_cred_free(struct cred *cred)
622 {
623         security_ops->cred_free(cred);
624 }
625
626 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
627 {
628         return security_ops->cred_prepare(new, old, gfp);
629 }
630
631 void security_commit_creds(struct cred *new, const struct cred *old)
632 {
633         security_ops->cred_commit(new, old);
634 }
635
636 int security_kernel_act_as(struct cred *new, u32 secid)
637 {
638         return security_ops->kernel_act_as(new, secid);
639 }
640
641 int security_kernel_create_files_as(struct cred *new, struct inode *inode)
642 {
643         return security_ops->kernel_create_files_as(new, inode);
644 }
645
646 int security_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags)
647 {
648         return security_ops->task_setuid(id0, id1, id2, flags);
649 }
650
651 int security_task_fix_setuid(struct cred *new, const struct cred *old,
652                              int flags)
653 {
654         return security_ops->task_fix_setuid(new, old, flags);
655 }
656
657 int security_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags)
658 {
659         return security_ops->task_setgid(id0, id1, id2, flags);
660 }
661
662 int security_task_setpgid(struct task_struct *p, pid_t pgid)
663 {
664         return security_ops->task_setpgid(p, pgid);
665 }
666
667 int security_task_getpgid(struct task_struct *p)
668 {
669         return security_ops->task_getpgid(p);
670 }
671
672 int security_task_getsid(struct task_struct *p)
673 {
674         return security_ops->task_getsid(p);
675 }
676
677 void security_task_getsecid(struct task_struct *p, u32 *secid)
678 {
679         security_ops->task_getsecid(p, secid);
680 }
681 EXPORT_SYMBOL(security_task_getsecid);
682
683 int security_task_setgroups(struct group_info *group_info)
684 {
685         return security_ops->task_setgroups(group_info);
686 }
687
688 int security_task_setnice(struct task_struct *p, int nice)
689 {
690         return security_ops->task_setnice(p, nice);
691 }
692
693 int security_task_setioprio(struct task_struct *p, int ioprio)
694 {
695         return security_ops->task_setioprio(p, ioprio);
696 }
697
698 int security_task_getioprio(struct task_struct *p)
699 {
700         return security_ops->task_getioprio(p);
701 }
702
703 int security_task_setrlimit(unsigned int resource, struct rlimit *new_rlim)
704 {
705         return security_ops->task_setrlimit(resource, new_rlim);
706 }
707
708 int security_task_setscheduler(struct task_struct *p,
709                                 int policy, struct sched_param *lp)
710 {
711         return security_ops->task_setscheduler(p, policy, lp);
712 }
713
714 int security_task_getscheduler(struct task_struct *p)
715 {
716         return security_ops->task_getscheduler(p);
717 }
718
719 int security_task_movememory(struct task_struct *p)
720 {
721         return security_ops->task_movememory(p);
722 }
723
724 int security_task_kill(struct task_struct *p, struct siginfo *info,
725                         int sig, u32 secid)
726 {
727         return security_ops->task_kill(p, info, sig, secid);
728 }
729
730 int security_task_wait(struct task_struct *p)
731 {
732         return security_ops->task_wait(p);
733 }
734
735 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
736                          unsigned long arg4, unsigned long arg5)
737 {
738         return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
739 }
740
741 void security_task_to_inode(struct task_struct *p, struct inode *inode)
742 {
743         security_ops->task_to_inode(p, inode);
744 }
745
746 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
747 {
748         return security_ops->ipc_permission(ipcp, flag);
749 }
750
751 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
752 {
753         security_ops->ipc_getsecid(ipcp, secid);
754 }
755
756 int security_msg_msg_alloc(struct msg_msg *msg)
757 {
758         return security_ops->msg_msg_alloc_security(msg);
759 }
760
761 void security_msg_msg_free(struct msg_msg *msg)
762 {
763         security_ops->msg_msg_free_security(msg);
764 }
765
766 int security_msg_queue_alloc(struct msg_queue *msq)
767 {
768         return security_ops->msg_queue_alloc_security(msq);
769 }
770
771 void security_msg_queue_free(struct msg_queue *msq)
772 {
773         security_ops->msg_queue_free_security(msq);
774 }
775
776 int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
777 {
778         return security_ops->msg_queue_associate(msq, msqflg);
779 }
780
781 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
782 {
783         return security_ops->msg_queue_msgctl(msq, cmd);
784 }
785
786 int security_msg_queue_msgsnd(struct msg_queue *msq,
787                                struct msg_msg *msg, int msqflg)
788 {
789         return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
790 }
791
792 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
793                                struct task_struct *target, long type, int mode)
794 {
795         return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
796 }
797
798 int security_shm_alloc(struct shmid_kernel *shp)
799 {
800         return security_ops->shm_alloc_security(shp);
801 }
802
803 void security_shm_free(struct shmid_kernel *shp)
804 {
805         security_ops->shm_free_security(shp);
806 }
807
808 int security_shm_associate(struct shmid_kernel *shp, int shmflg)
809 {
810         return security_ops->shm_associate(shp, shmflg);
811 }
812
813 int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
814 {
815         return security_ops->shm_shmctl(shp, cmd);
816 }
817
818 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
819 {
820         return security_ops->shm_shmat(shp, shmaddr, shmflg);
821 }
822
823 int security_sem_alloc(struct sem_array *sma)
824 {
825         return security_ops->sem_alloc_security(sma);
826 }
827
828 void security_sem_free(struct sem_array *sma)
829 {
830         security_ops->sem_free_security(sma);
831 }
832
833 int security_sem_associate(struct sem_array *sma, int semflg)
834 {
835         return security_ops->sem_associate(sma, semflg);
836 }
837
838 int security_sem_semctl(struct sem_array *sma, int cmd)
839 {
840         return security_ops->sem_semctl(sma, cmd);
841 }
842
843 int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
844                         unsigned nsops, int alter)
845 {
846         return security_ops->sem_semop(sma, sops, nsops, alter);
847 }
848
849 void security_d_instantiate(struct dentry *dentry, struct inode *inode)
850 {
851         if (unlikely(inode && IS_PRIVATE(inode)))
852                 return;
853         security_ops->d_instantiate(dentry, inode);
854 }
855 EXPORT_SYMBOL(security_d_instantiate);
856
857 int security_getprocattr(struct task_struct *p, char *name, char **value)
858 {
859         return security_ops->getprocattr(p, name, value);
860 }
861
862 int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
863 {
864         return security_ops->setprocattr(p, name, value, size);
865 }
866
867 int security_netlink_send(struct sock *sk, struct sk_buff *skb)
868 {
869         return security_ops->netlink_send(sk, skb);
870 }
871
872 int security_netlink_recv(struct sk_buff *skb, int cap)
873 {
874         return security_ops->netlink_recv(skb, cap);
875 }
876 EXPORT_SYMBOL(security_netlink_recv);
877
878 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
879 {
880         return security_ops->secid_to_secctx(secid, secdata, seclen);
881 }
882 EXPORT_SYMBOL(security_secid_to_secctx);
883
884 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
885 {
886         return security_ops->secctx_to_secid(secdata, seclen, secid);
887 }
888 EXPORT_SYMBOL(security_secctx_to_secid);
889
890 void security_release_secctx(char *secdata, u32 seclen)
891 {
892         security_ops->release_secctx(secdata, seclen);
893 }
894 EXPORT_SYMBOL(security_release_secctx);
895
896 #ifdef CONFIG_SECURITY_NETWORK
897
898 int security_unix_stream_connect(struct socket *sock, struct socket *other,
899                                  struct sock *newsk)
900 {
901         return security_ops->unix_stream_connect(sock, other, newsk);
902 }
903 EXPORT_SYMBOL(security_unix_stream_connect);
904
905 int security_unix_may_send(struct socket *sock,  struct socket *other)
906 {
907         return security_ops->unix_may_send(sock, other);
908 }
909 EXPORT_SYMBOL(security_unix_may_send);
910
911 int security_socket_create(int family, int type, int protocol, int kern)
912 {
913         return security_ops->socket_create(family, type, protocol, kern);
914 }
915
916 int security_socket_post_create(struct socket *sock, int family,
917                                 int type, int protocol, int kern)
918 {
919         return security_ops->socket_post_create(sock, family, type,
920                                                 protocol, kern);
921 }
922
923 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
924 {
925         return security_ops->socket_bind(sock, address, addrlen);
926 }
927
928 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
929 {
930         return security_ops->socket_connect(sock, address, addrlen);
931 }
932
933 int security_socket_listen(struct socket *sock, int backlog)
934 {
935         return security_ops->socket_listen(sock, backlog);
936 }
937
938 int security_socket_accept(struct socket *sock, struct socket *newsock)
939 {
940         return security_ops->socket_accept(sock, newsock);
941 }
942
943 void security_socket_post_accept(struct socket *sock, struct socket *newsock)
944 {
945         security_ops->socket_post_accept(sock, newsock);
946 }
947
948 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
949 {
950         return security_ops->socket_sendmsg(sock, msg, size);
951 }
952
953 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
954                             int size, int flags)
955 {
956         return security_ops->socket_recvmsg(sock, msg, size, flags);
957 }
958
959 int security_socket_getsockname(struct socket *sock)
960 {
961         return security_ops->socket_getsockname(sock);
962 }
963
964 int security_socket_getpeername(struct socket *sock)
965 {
966         return security_ops->socket_getpeername(sock);
967 }
968
969 int security_socket_getsockopt(struct socket *sock, int level, int optname)
970 {
971         return security_ops->socket_getsockopt(sock, level, optname);
972 }
973
974 int security_socket_setsockopt(struct socket *sock, int level, int optname)
975 {
976         return security_ops->socket_setsockopt(sock, level, optname);
977 }
978
979 int security_socket_shutdown(struct socket *sock, int how)
980 {
981         return security_ops->socket_shutdown(sock, how);
982 }
983
984 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
985 {
986         return security_ops->socket_sock_rcv_skb(sk, skb);
987 }
988 EXPORT_SYMBOL(security_sock_rcv_skb);
989
990 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
991                                       int __user *optlen, unsigned len)
992 {
993         return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
994 }
995
996 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
997 {
998         return security_ops->socket_getpeersec_dgram(sock, skb, secid);
999 }
1000 EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1001
1002 int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1003 {
1004         return security_ops->sk_alloc_security(sk, family, priority);
1005 }
1006
1007 void security_sk_free(struct sock *sk)
1008 {
1009         security_ops->sk_free_security(sk);
1010 }
1011
1012 void security_sk_clone(const struct sock *sk, struct sock *newsk)
1013 {
1014         security_ops->sk_clone_security(sk, newsk);
1015 }
1016
1017 void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1018 {
1019         security_ops->sk_getsecid(sk, &fl->secid);
1020 }
1021 EXPORT_SYMBOL(security_sk_classify_flow);
1022
1023 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1024 {
1025         security_ops->req_classify_flow(req, fl);
1026 }
1027 EXPORT_SYMBOL(security_req_classify_flow);
1028
1029 void security_sock_graft(struct sock *sk, struct socket *parent)
1030 {
1031         security_ops->sock_graft(sk, parent);
1032 }
1033 EXPORT_SYMBOL(security_sock_graft);
1034
1035 int security_inet_conn_request(struct sock *sk,
1036                         struct sk_buff *skb, struct request_sock *req)
1037 {
1038         return security_ops->inet_conn_request(sk, skb, req);
1039 }
1040 EXPORT_SYMBOL(security_inet_conn_request);
1041
1042 void security_inet_csk_clone(struct sock *newsk,
1043                         const struct request_sock *req)
1044 {
1045         security_ops->inet_csk_clone(newsk, req);
1046 }
1047
1048 void security_inet_conn_established(struct sock *sk,
1049                         struct sk_buff *skb)
1050 {
1051         security_ops->inet_conn_established(sk, skb);
1052 }
1053
1054 #endif  /* CONFIG_SECURITY_NETWORK */
1055
1056 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1057
1058 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
1059 {
1060         return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx);
1061 }
1062 EXPORT_SYMBOL(security_xfrm_policy_alloc);
1063
1064 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1065                               struct xfrm_sec_ctx **new_ctxp)
1066 {
1067         return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
1068 }
1069
1070 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1071 {
1072         security_ops->xfrm_policy_free_security(ctx);
1073 }
1074 EXPORT_SYMBOL(security_xfrm_policy_free);
1075
1076 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1077 {
1078         return security_ops->xfrm_policy_delete_security(ctx);
1079 }
1080
1081 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
1082 {
1083         return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
1084 }
1085 EXPORT_SYMBOL(security_xfrm_state_alloc);
1086
1087 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1088                                       struct xfrm_sec_ctx *polsec, u32 secid)
1089 {
1090         if (!polsec)
1091                 return 0;
1092         /*
1093          * We want the context to be taken from secid which is usually
1094          * from the sock.
1095          */
1096         return security_ops->xfrm_state_alloc_security(x, NULL, secid);
1097 }
1098
1099 int security_xfrm_state_delete(struct xfrm_state *x)
1100 {
1101         return security_ops->xfrm_state_delete_security(x);
1102 }
1103 EXPORT_SYMBOL(security_xfrm_state_delete);
1104
1105 void security_xfrm_state_free(struct xfrm_state *x)
1106 {
1107         security_ops->xfrm_state_free_security(x);
1108 }
1109
1110 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1111 {
1112         return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
1113 }
1114
1115 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1116                                        struct xfrm_policy *xp, struct flowi *fl)
1117 {
1118         return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
1119 }
1120
1121 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1122 {
1123         return security_ops->xfrm_decode_session(skb, secid, 1);
1124 }
1125
1126 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1127 {
1128         int rc = security_ops->xfrm_decode_session(skb, &fl->secid, 0);
1129
1130         BUG_ON(rc);
1131 }
1132 EXPORT_SYMBOL(security_skb_classify_flow);
1133
1134 #endif  /* CONFIG_SECURITY_NETWORK_XFRM */
1135
1136 #ifdef CONFIG_KEYS
1137
1138 int security_key_alloc(struct key *key, const struct cred *cred,
1139                        unsigned long flags)
1140 {
1141         return security_ops->key_alloc(key, cred, flags);
1142 }
1143
1144 void security_key_free(struct key *key)
1145 {
1146         security_ops->key_free(key);
1147 }
1148
1149 int security_key_permission(key_ref_t key_ref,
1150                             const struct cred *cred, key_perm_t perm)
1151 {
1152         return security_ops->key_permission(key_ref, cred, perm);
1153 }
1154
1155 int security_key_getsecurity(struct key *key, char **_buffer)
1156 {
1157         return security_ops->key_getsecurity(key, _buffer);
1158 }
1159
1160 #endif  /* CONFIG_KEYS */
1161
1162 #ifdef CONFIG_AUDIT
1163
1164 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1165 {
1166         return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
1167 }
1168
1169 int security_audit_rule_known(struct audit_krule *krule)
1170 {
1171         return security_ops->audit_rule_known(krule);
1172 }
1173
1174 void security_audit_rule_free(void *lsmrule)
1175 {
1176         security_ops->audit_rule_free(lsmrule);
1177 }
1178
1179 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1180                               struct audit_context *actx)
1181 {
1182         return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
1183 }
1184
1185 #endif /* CONFIG_AUDIT */