LSM: Add security_path_chmod() and security_path_chown().
[linux-2.6.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 static inline int verify(struct security_operations *ops)
30 {
31         /* verify the security_operations structure exists */
32         if (!ops)
33                 return -EINVAL;
34         security_fixup_ops(ops);
35         return 0;
36 }
37
38 static void __init do_security_initcalls(void)
39 {
40         initcall_t *call;
41         call = __security_initcall_start;
42         while (call < __security_initcall_end) {
43                 (*call) ();
44                 call++;
45         }
46 }
47
48 /**
49  * security_init - initializes the security framework
50  *
51  * This should be called early in the kernel initialization sequence.
52  */
53 int __init security_init(void)
54 {
55         printk(KERN_INFO "Security Framework initialized\n");
56
57         security_fixup_ops(&default_security_ops);
58         security_ops = &default_security_ops;
59         do_security_initcalls();
60
61         return 0;
62 }
63
64 /* Save user chosen LSM */
65 static int __init choose_lsm(char *str)
66 {
67         strncpy(chosen_lsm, str, SECURITY_NAME_MAX);
68         return 1;
69 }
70 __setup("security=", choose_lsm);
71
72 /**
73  * security_module_enable - Load given security module on boot ?
74  * @ops: a pointer to the struct security_operations that is to be checked.
75  *
76  * Each LSM must pass this method before registering its own operations
77  * to avoid security registration races. This method may also be used
78  * to check if your LSM is currently loaded during kernel initialization.
79  *
80  * Return true if:
81  *      -The passed LSM is the one chosen by user at boot time,
82  *      -or user didn't specify a specific LSM and we're the first to ask
83  *       for registration permission,
84  *      -or the passed LSM is currently loaded.
85  * Otherwise, return false.
86  */
87 int __init security_module_enable(struct security_operations *ops)
88 {
89         if (!*chosen_lsm)
90                 strncpy(chosen_lsm, ops->name, SECURITY_NAME_MAX);
91         else if (strncmp(ops->name, chosen_lsm, SECURITY_NAME_MAX))
92                 return 0;
93
94         return 1;
95 }
96
97 /**
98  * register_security - registers a security framework with the kernel
99  * @ops: a pointer to the struct security_options that is to be registered
100  *
101  * This function allows a security module to register itself with the
102  * kernel security subsystem.  Some rudimentary checking is done on the @ops
103  * value passed to this function. You'll need to check first if your LSM
104  * is allowed to register its @ops by calling security_module_enable(@ops).
105  *
106  * If there is already a security module registered with the kernel,
107  * an error will be returned.  Otherwise %0 is returned on success.
108  */
109 int register_security(struct security_operations *ops)
110 {
111         if (verify(ops)) {
112                 printk(KERN_DEBUG "%s could not verify "
113                        "security_operations structure.\n", __func__);
114                 return -EINVAL;
115         }
116
117         if (security_ops != &default_security_ops)
118                 return -EAGAIN;
119
120         security_ops = ops;
121
122         return 0;
123 }
124
125 /* Security operations */
126
127 int security_ptrace_access_check(struct task_struct *child, unsigned int mode)
128 {
129         return security_ops->ptrace_access_check(child, mode);
130 }
131
132 int security_ptrace_traceme(struct task_struct *parent)
133 {
134         return security_ops->ptrace_traceme(parent);
135 }
136
137 int security_capget(struct task_struct *target,
138                      kernel_cap_t *effective,
139                      kernel_cap_t *inheritable,
140                      kernel_cap_t *permitted)
141 {
142         return security_ops->capget(target, effective, inheritable, permitted);
143 }
144
145 int security_capset(struct cred *new, const struct cred *old,
146                     const kernel_cap_t *effective,
147                     const kernel_cap_t *inheritable,
148                     const kernel_cap_t *permitted)
149 {
150         return security_ops->capset(new, old,
151                                     effective, inheritable, permitted);
152 }
153
154 int security_capable(int cap)
155 {
156         return security_ops->capable(current, current_cred(), cap,
157                                      SECURITY_CAP_AUDIT);
158 }
159
160 int security_real_capable(struct task_struct *tsk, int cap)
161 {
162         const struct cred *cred;
163         int ret;
164
165         cred = get_task_cred(tsk);
166         ret = security_ops->capable(tsk, cred, cap, SECURITY_CAP_AUDIT);
167         put_cred(cred);
168         return ret;
169 }
170
171 int security_real_capable_noaudit(struct task_struct *tsk, int cap)
172 {
173         const struct cred *cred;
174         int ret;
175
176         cred = get_task_cred(tsk);
177         ret = security_ops->capable(tsk, cred, cap, SECURITY_CAP_NOAUDIT);
178         put_cred(cred);
179         return ret;
180 }
181
182 int security_acct(struct file *file)
183 {
184         return security_ops->acct(file);
185 }
186
187 int security_sysctl(struct ctl_table *table, int op)
188 {
189         return security_ops->sysctl(table, op);
190 }
191
192 int security_quotactl(int cmds, int type, int id, struct super_block *sb)
193 {
194         return security_ops->quotactl(cmds, type, id, sb);
195 }
196
197 int security_quota_on(struct dentry *dentry)
198 {
199         return security_ops->quota_on(dentry);
200 }
201
202 int security_syslog(int type)
203 {
204         return security_ops->syslog(type);
205 }
206
207 int security_settime(struct timespec *ts, struct timezone *tz)
208 {
209         return security_ops->settime(ts, tz);
210 }
211
212 int security_vm_enough_memory(long pages)
213 {
214         WARN_ON(current->mm == NULL);
215         return security_ops->vm_enough_memory(current->mm, pages);
216 }
217
218 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
219 {
220         WARN_ON(mm == NULL);
221         return security_ops->vm_enough_memory(mm, pages);
222 }
223
224 int security_vm_enough_memory_kern(long pages)
225 {
226         /* If current->mm is a kernel thread then we will pass NULL,
227            for this specific case that is fine */
228         return security_ops->vm_enough_memory(current->mm, pages);
229 }
230
231 int security_bprm_set_creds(struct linux_binprm *bprm)
232 {
233         return security_ops->bprm_set_creds(bprm);
234 }
235
236 int security_bprm_check(struct linux_binprm *bprm)
237 {
238         return security_ops->bprm_check_security(bprm);
239 }
240
241 void security_bprm_committing_creds(struct linux_binprm *bprm)
242 {
243         security_ops->bprm_committing_creds(bprm);
244 }
245
246 void security_bprm_committed_creds(struct linux_binprm *bprm)
247 {
248         security_ops->bprm_committed_creds(bprm);
249 }
250
251 int security_bprm_secureexec(struct linux_binprm *bprm)
252 {
253         return security_ops->bprm_secureexec(bprm);
254 }
255
256 int security_sb_alloc(struct super_block *sb)
257 {
258         return security_ops->sb_alloc_security(sb);
259 }
260
261 void security_sb_free(struct super_block *sb)
262 {
263         security_ops->sb_free_security(sb);
264 }
265
266 int security_sb_copy_data(char *orig, char *copy)
267 {
268         return security_ops->sb_copy_data(orig, copy);
269 }
270 EXPORT_SYMBOL(security_sb_copy_data);
271
272 int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
273 {
274         return security_ops->sb_kern_mount(sb, flags, data);
275 }
276
277 int security_sb_show_options(struct seq_file *m, struct super_block *sb)
278 {
279         return security_ops->sb_show_options(m, sb);
280 }
281
282 int security_sb_statfs(struct dentry *dentry)
283 {
284         return security_ops->sb_statfs(dentry);
285 }
286
287 int security_sb_mount(char *dev_name, struct path *path,
288                        char *type, unsigned long flags, void *data)
289 {
290         return security_ops->sb_mount(dev_name, path, type, flags, data);
291 }
292
293 int security_sb_check_sb(struct vfsmount *mnt, struct path *path)
294 {
295         return security_ops->sb_check_sb(mnt, path);
296 }
297
298 int security_sb_umount(struct vfsmount *mnt, int flags)
299 {
300         return security_ops->sb_umount(mnt, flags);
301 }
302
303 void security_sb_umount_close(struct vfsmount *mnt)
304 {
305         security_ops->sb_umount_close(mnt);
306 }
307
308 void security_sb_umount_busy(struct vfsmount *mnt)
309 {
310         security_ops->sb_umount_busy(mnt);
311 }
312
313 void security_sb_post_remount(struct vfsmount *mnt, unsigned long flags, void *data)
314 {
315         security_ops->sb_post_remount(mnt, flags, data);
316 }
317
318 void security_sb_post_addmount(struct vfsmount *mnt, struct path *mountpoint)
319 {
320         security_ops->sb_post_addmount(mnt, mountpoint);
321 }
322
323 int security_sb_pivotroot(struct path *old_path, struct path *new_path)
324 {
325         return security_ops->sb_pivotroot(old_path, new_path);
326 }
327
328 void security_sb_post_pivotroot(struct path *old_path, struct path *new_path)
329 {
330         security_ops->sb_post_pivotroot(old_path, new_path);
331 }
332
333 int security_sb_set_mnt_opts(struct super_block *sb,
334                                 struct security_mnt_opts *opts)
335 {
336         return security_ops->sb_set_mnt_opts(sb, opts);
337 }
338 EXPORT_SYMBOL(security_sb_set_mnt_opts);
339
340 void security_sb_clone_mnt_opts(const struct super_block *oldsb,
341                                 struct super_block *newsb)
342 {
343         security_ops->sb_clone_mnt_opts(oldsb, newsb);
344 }
345 EXPORT_SYMBOL(security_sb_clone_mnt_opts);
346
347 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
348 {
349         return security_ops->sb_parse_opts_str(options, opts);
350 }
351 EXPORT_SYMBOL(security_sb_parse_opts_str);
352
353 int security_inode_alloc(struct inode *inode)
354 {
355         inode->i_security = NULL;
356         return security_ops->inode_alloc_security(inode);
357 }
358
359 void security_inode_free(struct inode *inode)
360 {
361         security_ops->inode_free_security(inode);
362 }
363
364 int security_inode_init_security(struct inode *inode, struct inode *dir,
365                                   char **name, void **value, size_t *len)
366 {
367         if (unlikely(IS_PRIVATE(inode)))
368                 return -EOPNOTSUPP;
369         return security_ops->inode_init_security(inode, dir, name, value, len);
370 }
371 EXPORT_SYMBOL(security_inode_init_security);
372
373 #ifdef CONFIG_SECURITY_PATH
374 int security_path_mknod(struct path *path, struct dentry *dentry, int mode,
375                         unsigned int dev)
376 {
377         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
378                 return 0;
379         return security_ops->path_mknod(path, dentry, mode, dev);
380 }
381 EXPORT_SYMBOL(security_path_mknod);
382
383 int security_path_mkdir(struct path *path, struct dentry *dentry, int mode)
384 {
385         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
386                 return 0;
387         return security_ops->path_mkdir(path, dentry, mode);
388 }
389
390 int security_path_rmdir(struct path *path, struct dentry *dentry)
391 {
392         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
393                 return 0;
394         return security_ops->path_rmdir(path, dentry);
395 }
396
397 int security_path_unlink(struct path *path, struct dentry *dentry)
398 {
399         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
400                 return 0;
401         return security_ops->path_unlink(path, dentry);
402 }
403
404 int security_path_symlink(struct path *path, struct dentry *dentry,
405                           const char *old_name)
406 {
407         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
408                 return 0;
409         return security_ops->path_symlink(path, dentry, old_name);
410 }
411
412 int security_path_link(struct dentry *old_dentry, struct path *new_dir,
413                        struct dentry *new_dentry)
414 {
415         if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
416                 return 0;
417         return security_ops->path_link(old_dentry, new_dir, new_dentry);
418 }
419
420 int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
421                          struct path *new_dir, struct dentry *new_dentry)
422 {
423         if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
424                      (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
425                 return 0;
426         return security_ops->path_rename(old_dir, old_dentry, new_dir,
427                                          new_dentry);
428 }
429
430 int security_path_truncate(struct path *path, loff_t length,
431                            unsigned int time_attrs)
432 {
433         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
434                 return 0;
435         return security_ops->path_truncate(path, length, time_attrs);
436 }
437
438 int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
439                         mode_t mode)
440 {
441         if (unlikely(IS_PRIVATE(dentry->d_inode)))
442                 return 0;
443         return security_ops->path_chmod(dentry, mnt, mode);
444 }
445
446 int security_path_chown(struct path *path, uid_t uid, gid_t gid)
447 {
448         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
449                 return 0;
450         return security_ops->path_chown(path, uid, gid);
451 }
452 #endif
453
454 int security_inode_create(struct inode *dir, struct dentry *dentry, int mode)
455 {
456         if (unlikely(IS_PRIVATE(dir)))
457                 return 0;
458         return security_ops->inode_create(dir, dentry, mode);
459 }
460 EXPORT_SYMBOL_GPL(security_inode_create);
461
462 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
463                          struct dentry *new_dentry)
464 {
465         if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
466                 return 0;
467         return security_ops->inode_link(old_dentry, dir, new_dentry);
468 }
469
470 int security_inode_unlink(struct inode *dir, struct dentry *dentry)
471 {
472         if (unlikely(IS_PRIVATE(dentry->d_inode)))
473                 return 0;
474         return security_ops->inode_unlink(dir, dentry);
475 }
476
477 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
478                             const char *old_name)
479 {
480         if (unlikely(IS_PRIVATE(dir)))
481                 return 0;
482         return security_ops->inode_symlink(dir, dentry, old_name);
483 }
484
485 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode)
486 {
487         if (unlikely(IS_PRIVATE(dir)))
488                 return 0;
489         return security_ops->inode_mkdir(dir, dentry, mode);
490 }
491 EXPORT_SYMBOL_GPL(security_inode_mkdir);
492
493 int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
494 {
495         if (unlikely(IS_PRIVATE(dentry->d_inode)))
496                 return 0;
497         return security_ops->inode_rmdir(dir, dentry);
498 }
499
500 int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
501 {
502         if (unlikely(IS_PRIVATE(dir)))
503                 return 0;
504         return security_ops->inode_mknod(dir, dentry, mode, dev);
505 }
506
507 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
508                            struct inode *new_dir, struct dentry *new_dentry)
509 {
510         if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
511             (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
512                 return 0;
513         return security_ops->inode_rename(old_dir, old_dentry,
514                                            new_dir, new_dentry);
515 }
516
517 int security_inode_readlink(struct dentry *dentry)
518 {
519         if (unlikely(IS_PRIVATE(dentry->d_inode)))
520                 return 0;
521         return security_ops->inode_readlink(dentry);
522 }
523
524 int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
525 {
526         if (unlikely(IS_PRIVATE(dentry->d_inode)))
527                 return 0;
528         return security_ops->inode_follow_link(dentry, nd);
529 }
530
531 int security_inode_permission(struct inode *inode, int mask)
532 {
533         if (unlikely(IS_PRIVATE(inode)))
534                 return 0;
535         return security_ops->inode_permission(inode, mask);
536 }
537
538 int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
539 {
540         if (unlikely(IS_PRIVATE(dentry->d_inode)))
541                 return 0;
542         return security_ops->inode_setattr(dentry, attr);
543 }
544 EXPORT_SYMBOL_GPL(security_inode_setattr);
545
546 int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
547 {
548         if (unlikely(IS_PRIVATE(dentry->d_inode)))
549                 return 0;
550         return security_ops->inode_getattr(mnt, dentry);
551 }
552
553 void security_inode_delete(struct inode *inode)
554 {
555         if (unlikely(IS_PRIVATE(inode)))
556                 return;
557         security_ops->inode_delete(inode);
558 }
559
560 int security_inode_setxattr(struct dentry *dentry, const char *name,
561                             const void *value, size_t size, int flags)
562 {
563         if (unlikely(IS_PRIVATE(dentry->d_inode)))
564                 return 0;
565         return security_ops->inode_setxattr(dentry, name, value, size, flags);
566 }
567
568 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
569                                   const void *value, size_t size, int flags)
570 {
571         if (unlikely(IS_PRIVATE(dentry->d_inode)))
572                 return;
573         security_ops->inode_post_setxattr(dentry, name, value, size, flags);
574 }
575
576 int security_inode_getxattr(struct dentry *dentry, const char *name)
577 {
578         if (unlikely(IS_PRIVATE(dentry->d_inode)))
579                 return 0;
580         return security_ops->inode_getxattr(dentry, name);
581 }
582
583 int security_inode_listxattr(struct dentry *dentry)
584 {
585         if (unlikely(IS_PRIVATE(dentry->d_inode)))
586                 return 0;
587         return security_ops->inode_listxattr(dentry);
588 }
589
590 int security_inode_removexattr(struct dentry *dentry, const char *name)
591 {
592         if (unlikely(IS_PRIVATE(dentry->d_inode)))
593                 return 0;
594         return security_ops->inode_removexattr(dentry, name);
595 }
596
597 int security_inode_need_killpriv(struct dentry *dentry)
598 {
599         return security_ops->inode_need_killpriv(dentry);
600 }
601
602 int security_inode_killpriv(struct dentry *dentry)
603 {
604         return security_ops->inode_killpriv(dentry);
605 }
606
607 int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
608 {
609         if (unlikely(IS_PRIVATE(inode)))
610                 return 0;
611         return security_ops->inode_getsecurity(inode, name, buffer, alloc);
612 }
613
614 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
615 {
616         if (unlikely(IS_PRIVATE(inode)))
617                 return 0;
618         return security_ops->inode_setsecurity(inode, name, value, size, flags);
619 }
620
621 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
622 {
623         if (unlikely(IS_PRIVATE(inode)))
624                 return 0;
625         return security_ops->inode_listsecurity(inode, buffer, buffer_size);
626 }
627
628 void security_inode_getsecid(const struct inode *inode, u32 *secid)
629 {
630         security_ops->inode_getsecid(inode, secid);
631 }
632
633 int security_file_permission(struct file *file, int mask)
634 {
635         return security_ops->file_permission(file, mask);
636 }
637
638 int security_file_alloc(struct file *file)
639 {
640         return security_ops->file_alloc_security(file);
641 }
642
643 void security_file_free(struct file *file)
644 {
645         security_ops->file_free_security(file);
646 }
647
648 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
649 {
650         return security_ops->file_ioctl(file, cmd, arg);
651 }
652
653 int security_file_mmap(struct file *file, unsigned long reqprot,
654                         unsigned long prot, unsigned long flags,
655                         unsigned long addr, unsigned long addr_only)
656 {
657         return security_ops->file_mmap(file, reqprot, prot, flags, addr, addr_only);
658 }
659
660 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
661                             unsigned long prot)
662 {
663         return security_ops->file_mprotect(vma, reqprot, prot);
664 }
665
666 int security_file_lock(struct file *file, unsigned int cmd)
667 {
668         return security_ops->file_lock(file, cmd);
669 }
670
671 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
672 {
673         return security_ops->file_fcntl(file, cmd, arg);
674 }
675
676 int security_file_set_fowner(struct file *file)
677 {
678         return security_ops->file_set_fowner(file);
679 }
680
681 int security_file_send_sigiotask(struct task_struct *tsk,
682                                   struct fown_struct *fown, int sig)
683 {
684         return security_ops->file_send_sigiotask(tsk, fown, sig);
685 }
686
687 int security_file_receive(struct file *file)
688 {
689         return security_ops->file_receive(file);
690 }
691
692 int security_dentry_open(struct file *file, const struct cred *cred)
693 {
694         return security_ops->dentry_open(file, cred);
695 }
696
697 int security_task_create(unsigned long clone_flags)
698 {
699         return security_ops->task_create(clone_flags);
700 }
701
702 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
703 {
704         return security_ops->cred_alloc_blank(cred, gfp);
705 }
706
707 void security_cred_free(struct cred *cred)
708 {
709         security_ops->cred_free(cred);
710 }
711
712 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
713 {
714         return security_ops->cred_prepare(new, old, gfp);
715 }
716
717 void security_commit_creds(struct cred *new, const struct cred *old)
718 {
719         security_ops->cred_commit(new, old);
720 }
721
722 void security_transfer_creds(struct cred *new, const struct cred *old)
723 {
724         security_ops->cred_transfer(new, old);
725 }
726
727 int security_kernel_act_as(struct cred *new, u32 secid)
728 {
729         return security_ops->kernel_act_as(new, secid);
730 }
731
732 int security_kernel_create_files_as(struct cred *new, struct inode *inode)
733 {
734         return security_ops->kernel_create_files_as(new, inode);
735 }
736
737 int security_kernel_module_request(void)
738 {
739         return security_ops->kernel_module_request();
740 }
741
742 int security_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags)
743 {
744         return security_ops->task_setuid(id0, id1, id2, flags);
745 }
746
747 int security_task_fix_setuid(struct cred *new, const struct cred *old,
748                              int flags)
749 {
750         return security_ops->task_fix_setuid(new, old, flags);
751 }
752
753 int security_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags)
754 {
755         return security_ops->task_setgid(id0, id1, id2, flags);
756 }
757
758 int security_task_setpgid(struct task_struct *p, pid_t pgid)
759 {
760         return security_ops->task_setpgid(p, pgid);
761 }
762
763 int security_task_getpgid(struct task_struct *p)
764 {
765         return security_ops->task_getpgid(p);
766 }
767
768 int security_task_getsid(struct task_struct *p)
769 {
770         return security_ops->task_getsid(p);
771 }
772
773 void security_task_getsecid(struct task_struct *p, u32 *secid)
774 {
775         security_ops->task_getsecid(p, secid);
776 }
777 EXPORT_SYMBOL(security_task_getsecid);
778
779 int security_task_setgroups(struct group_info *group_info)
780 {
781         return security_ops->task_setgroups(group_info);
782 }
783
784 int security_task_setnice(struct task_struct *p, int nice)
785 {
786         return security_ops->task_setnice(p, nice);
787 }
788
789 int security_task_setioprio(struct task_struct *p, int ioprio)
790 {
791         return security_ops->task_setioprio(p, ioprio);
792 }
793
794 int security_task_getioprio(struct task_struct *p)
795 {
796         return security_ops->task_getioprio(p);
797 }
798
799 int security_task_setrlimit(unsigned int resource, struct rlimit *new_rlim)
800 {
801         return security_ops->task_setrlimit(resource, new_rlim);
802 }
803
804 int security_task_setscheduler(struct task_struct *p,
805                                 int policy, struct sched_param *lp)
806 {
807         return security_ops->task_setscheduler(p, policy, lp);
808 }
809
810 int security_task_getscheduler(struct task_struct *p)
811 {
812         return security_ops->task_getscheduler(p);
813 }
814
815 int security_task_movememory(struct task_struct *p)
816 {
817         return security_ops->task_movememory(p);
818 }
819
820 int security_task_kill(struct task_struct *p, struct siginfo *info,
821                         int sig, u32 secid)
822 {
823         return security_ops->task_kill(p, info, sig, secid);
824 }
825
826 int security_task_wait(struct task_struct *p)
827 {
828         return security_ops->task_wait(p);
829 }
830
831 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
832                          unsigned long arg4, unsigned long arg5)
833 {
834         return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
835 }
836
837 void security_task_to_inode(struct task_struct *p, struct inode *inode)
838 {
839         security_ops->task_to_inode(p, inode);
840 }
841
842 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
843 {
844         return security_ops->ipc_permission(ipcp, flag);
845 }
846
847 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
848 {
849         security_ops->ipc_getsecid(ipcp, secid);
850 }
851
852 int security_msg_msg_alloc(struct msg_msg *msg)
853 {
854         return security_ops->msg_msg_alloc_security(msg);
855 }
856
857 void security_msg_msg_free(struct msg_msg *msg)
858 {
859         security_ops->msg_msg_free_security(msg);
860 }
861
862 int security_msg_queue_alloc(struct msg_queue *msq)
863 {
864         return security_ops->msg_queue_alloc_security(msq);
865 }
866
867 void security_msg_queue_free(struct msg_queue *msq)
868 {
869         security_ops->msg_queue_free_security(msq);
870 }
871
872 int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
873 {
874         return security_ops->msg_queue_associate(msq, msqflg);
875 }
876
877 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
878 {
879         return security_ops->msg_queue_msgctl(msq, cmd);
880 }
881
882 int security_msg_queue_msgsnd(struct msg_queue *msq,
883                                struct msg_msg *msg, int msqflg)
884 {
885         return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
886 }
887
888 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
889                                struct task_struct *target, long type, int mode)
890 {
891         return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
892 }
893
894 int security_shm_alloc(struct shmid_kernel *shp)
895 {
896         return security_ops->shm_alloc_security(shp);
897 }
898
899 void security_shm_free(struct shmid_kernel *shp)
900 {
901         security_ops->shm_free_security(shp);
902 }
903
904 int security_shm_associate(struct shmid_kernel *shp, int shmflg)
905 {
906         return security_ops->shm_associate(shp, shmflg);
907 }
908
909 int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
910 {
911         return security_ops->shm_shmctl(shp, cmd);
912 }
913
914 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
915 {
916         return security_ops->shm_shmat(shp, shmaddr, shmflg);
917 }
918
919 int security_sem_alloc(struct sem_array *sma)
920 {
921         return security_ops->sem_alloc_security(sma);
922 }
923
924 void security_sem_free(struct sem_array *sma)
925 {
926         security_ops->sem_free_security(sma);
927 }
928
929 int security_sem_associate(struct sem_array *sma, int semflg)
930 {
931         return security_ops->sem_associate(sma, semflg);
932 }
933
934 int security_sem_semctl(struct sem_array *sma, int cmd)
935 {
936         return security_ops->sem_semctl(sma, cmd);
937 }
938
939 int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
940                         unsigned nsops, int alter)
941 {
942         return security_ops->sem_semop(sma, sops, nsops, alter);
943 }
944
945 void security_d_instantiate(struct dentry *dentry, struct inode *inode)
946 {
947         if (unlikely(inode && IS_PRIVATE(inode)))
948                 return;
949         security_ops->d_instantiate(dentry, inode);
950 }
951 EXPORT_SYMBOL(security_d_instantiate);
952
953 int security_getprocattr(struct task_struct *p, char *name, char **value)
954 {
955         return security_ops->getprocattr(p, name, value);
956 }
957
958 int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
959 {
960         return security_ops->setprocattr(p, name, value, size);
961 }
962
963 int security_netlink_send(struct sock *sk, struct sk_buff *skb)
964 {
965         return security_ops->netlink_send(sk, skb);
966 }
967
968 int security_netlink_recv(struct sk_buff *skb, int cap)
969 {
970         return security_ops->netlink_recv(skb, cap);
971 }
972 EXPORT_SYMBOL(security_netlink_recv);
973
974 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
975 {
976         return security_ops->secid_to_secctx(secid, secdata, seclen);
977 }
978 EXPORT_SYMBOL(security_secid_to_secctx);
979
980 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
981 {
982         return security_ops->secctx_to_secid(secdata, seclen, secid);
983 }
984 EXPORT_SYMBOL(security_secctx_to_secid);
985
986 void security_release_secctx(char *secdata, u32 seclen)
987 {
988         security_ops->release_secctx(secdata, seclen);
989 }
990 EXPORT_SYMBOL(security_release_secctx);
991
992 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
993 {
994         return security_ops->inode_notifysecctx(inode, ctx, ctxlen);
995 }
996 EXPORT_SYMBOL(security_inode_notifysecctx);
997
998 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
999 {
1000         return security_ops->inode_setsecctx(dentry, ctx, ctxlen);
1001 }
1002 EXPORT_SYMBOL(security_inode_setsecctx);
1003
1004 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1005 {
1006         return security_ops->inode_getsecctx(inode, ctx, ctxlen);
1007 }
1008 EXPORT_SYMBOL(security_inode_getsecctx);
1009
1010 #ifdef CONFIG_SECURITY_NETWORK
1011
1012 int security_unix_stream_connect(struct socket *sock, struct socket *other,
1013                                  struct sock *newsk)
1014 {
1015         return security_ops->unix_stream_connect(sock, other, newsk);
1016 }
1017 EXPORT_SYMBOL(security_unix_stream_connect);
1018
1019 int security_unix_may_send(struct socket *sock,  struct socket *other)
1020 {
1021         return security_ops->unix_may_send(sock, other);
1022 }
1023 EXPORT_SYMBOL(security_unix_may_send);
1024
1025 int security_socket_create(int family, int type, int protocol, int kern)
1026 {
1027         return security_ops->socket_create(family, type, protocol, kern);
1028 }
1029
1030 int security_socket_post_create(struct socket *sock, int family,
1031                                 int type, int protocol, int kern)
1032 {
1033         return security_ops->socket_post_create(sock, family, type,
1034                                                 protocol, kern);
1035 }
1036
1037 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
1038 {
1039         return security_ops->socket_bind(sock, address, addrlen);
1040 }
1041
1042 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
1043 {
1044         return security_ops->socket_connect(sock, address, addrlen);
1045 }
1046
1047 int security_socket_listen(struct socket *sock, int backlog)
1048 {
1049         return security_ops->socket_listen(sock, backlog);
1050 }
1051
1052 int security_socket_accept(struct socket *sock, struct socket *newsock)
1053 {
1054         return security_ops->socket_accept(sock, newsock);
1055 }
1056
1057 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1058 {
1059         return security_ops->socket_sendmsg(sock, msg, size);
1060 }
1061
1062 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1063                             int size, int flags)
1064 {
1065         return security_ops->socket_recvmsg(sock, msg, size, flags);
1066 }
1067
1068 int security_socket_getsockname(struct socket *sock)
1069 {
1070         return security_ops->socket_getsockname(sock);
1071 }
1072
1073 int security_socket_getpeername(struct socket *sock)
1074 {
1075         return security_ops->socket_getpeername(sock);
1076 }
1077
1078 int security_socket_getsockopt(struct socket *sock, int level, int optname)
1079 {
1080         return security_ops->socket_getsockopt(sock, level, optname);
1081 }
1082
1083 int security_socket_setsockopt(struct socket *sock, int level, int optname)
1084 {
1085         return security_ops->socket_setsockopt(sock, level, optname);
1086 }
1087
1088 int security_socket_shutdown(struct socket *sock, int how)
1089 {
1090         return security_ops->socket_shutdown(sock, how);
1091 }
1092
1093 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1094 {
1095         return security_ops->socket_sock_rcv_skb(sk, skb);
1096 }
1097 EXPORT_SYMBOL(security_sock_rcv_skb);
1098
1099 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1100                                       int __user *optlen, unsigned len)
1101 {
1102         return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
1103 }
1104
1105 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1106 {
1107         return security_ops->socket_getpeersec_dgram(sock, skb, secid);
1108 }
1109 EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1110
1111 int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1112 {
1113         return security_ops->sk_alloc_security(sk, family, priority);
1114 }
1115
1116 void security_sk_free(struct sock *sk)
1117 {
1118         security_ops->sk_free_security(sk);
1119 }
1120
1121 void security_sk_clone(const struct sock *sk, struct sock *newsk)
1122 {
1123         security_ops->sk_clone_security(sk, newsk);
1124 }
1125
1126 void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1127 {
1128         security_ops->sk_getsecid(sk, &fl->secid);
1129 }
1130 EXPORT_SYMBOL(security_sk_classify_flow);
1131
1132 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1133 {
1134         security_ops->req_classify_flow(req, fl);
1135 }
1136 EXPORT_SYMBOL(security_req_classify_flow);
1137
1138 void security_sock_graft(struct sock *sk, struct socket *parent)
1139 {
1140         security_ops->sock_graft(sk, parent);
1141 }
1142 EXPORT_SYMBOL(security_sock_graft);
1143
1144 int security_inet_conn_request(struct sock *sk,
1145                         struct sk_buff *skb, struct request_sock *req)
1146 {
1147         return security_ops->inet_conn_request(sk, skb, req);
1148 }
1149 EXPORT_SYMBOL(security_inet_conn_request);
1150
1151 void security_inet_csk_clone(struct sock *newsk,
1152                         const struct request_sock *req)
1153 {
1154         security_ops->inet_csk_clone(newsk, req);
1155 }
1156
1157 void security_inet_conn_established(struct sock *sk,
1158                         struct sk_buff *skb)
1159 {
1160         security_ops->inet_conn_established(sk, skb);
1161 }
1162
1163 int security_tun_dev_create(void)
1164 {
1165         return security_ops->tun_dev_create();
1166 }
1167 EXPORT_SYMBOL(security_tun_dev_create);
1168
1169 void security_tun_dev_post_create(struct sock *sk)
1170 {
1171         return security_ops->tun_dev_post_create(sk);
1172 }
1173 EXPORT_SYMBOL(security_tun_dev_post_create);
1174
1175 int security_tun_dev_attach(struct sock *sk)
1176 {
1177         return security_ops->tun_dev_attach(sk);
1178 }
1179 EXPORT_SYMBOL(security_tun_dev_attach);
1180
1181 #endif  /* CONFIG_SECURITY_NETWORK */
1182
1183 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1184
1185 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
1186 {
1187         return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx);
1188 }
1189 EXPORT_SYMBOL(security_xfrm_policy_alloc);
1190
1191 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1192                               struct xfrm_sec_ctx **new_ctxp)
1193 {
1194         return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
1195 }
1196
1197 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1198 {
1199         security_ops->xfrm_policy_free_security(ctx);
1200 }
1201 EXPORT_SYMBOL(security_xfrm_policy_free);
1202
1203 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1204 {
1205         return security_ops->xfrm_policy_delete_security(ctx);
1206 }
1207
1208 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
1209 {
1210         return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
1211 }
1212 EXPORT_SYMBOL(security_xfrm_state_alloc);
1213
1214 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1215                                       struct xfrm_sec_ctx *polsec, u32 secid)
1216 {
1217         if (!polsec)
1218                 return 0;
1219         /*
1220          * We want the context to be taken from secid which is usually
1221          * from the sock.
1222          */
1223         return security_ops->xfrm_state_alloc_security(x, NULL, secid);
1224 }
1225
1226 int security_xfrm_state_delete(struct xfrm_state *x)
1227 {
1228         return security_ops->xfrm_state_delete_security(x);
1229 }
1230 EXPORT_SYMBOL(security_xfrm_state_delete);
1231
1232 void security_xfrm_state_free(struct xfrm_state *x)
1233 {
1234         security_ops->xfrm_state_free_security(x);
1235 }
1236
1237 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1238 {
1239         return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
1240 }
1241
1242 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1243                                        struct xfrm_policy *xp, struct flowi *fl)
1244 {
1245         return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
1246 }
1247
1248 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1249 {
1250         return security_ops->xfrm_decode_session(skb, secid, 1);
1251 }
1252
1253 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1254 {
1255         int rc = security_ops->xfrm_decode_session(skb, &fl->secid, 0);
1256
1257         BUG_ON(rc);
1258 }
1259 EXPORT_SYMBOL(security_skb_classify_flow);
1260
1261 #endif  /* CONFIG_SECURITY_NETWORK_XFRM */
1262
1263 #ifdef CONFIG_KEYS
1264
1265 int security_key_alloc(struct key *key, const struct cred *cred,
1266                        unsigned long flags)
1267 {
1268         return security_ops->key_alloc(key, cred, flags);
1269 }
1270
1271 void security_key_free(struct key *key)
1272 {
1273         security_ops->key_free(key);
1274 }
1275
1276 int security_key_permission(key_ref_t key_ref,
1277                             const struct cred *cred, key_perm_t perm)
1278 {
1279         return security_ops->key_permission(key_ref, cred, perm);
1280 }
1281
1282 int security_key_getsecurity(struct key *key, char **_buffer)
1283 {
1284         return security_ops->key_getsecurity(key, _buffer);
1285 }
1286
1287 int security_key_session_to_parent(const struct cred *cred,
1288                                    const struct cred *parent_cred,
1289                                    struct key *key)
1290 {
1291         return security_ops->key_session_to_parent(cred, parent_cred, key);
1292 }
1293
1294 #endif  /* CONFIG_KEYS */
1295
1296 #ifdef CONFIG_AUDIT
1297
1298 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1299 {
1300         return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
1301 }
1302
1303 int security_audit_rule_known(struct audit_krule *krule)
1304 {
1305         return security_ops->audit_rule_known(krule);
1306 }
1307
1308 void security_audit_rule_free(void *lsmrule)
1309 {
1310         security_ops->audit_rule_free(lsmrule);
1311 }
1312
1313 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1314                               struct audit_context *actx)
1315 {
1316         return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
1317 }
1318
1319 #endif /* CONFIG_AUDIT */