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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 | #include <linux/ima.h> |
20 | |
21 | /* Boot-time LSM user choice */ |
22 | static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] = |
23 | CONFIG_DEFAULT_SECURITY; |
24 | |
25 | /* things that live in capability.c */ |
26 | extern void __init security_fixup_ops(struct security_operations *ops); |
27 | |
28 | static struct security_operations *security_ops; |
29 | static struct security_operations default_security_ops = { |
30 | .name = "default", |
31 | }; |
32 | |
33 | static inline int __init verify(struct security_operations *ops) |
34 | { |
35 | /* verify the security_operations structure exists */ |
36 | if (!ops) |
37 | return -EINVAL; |
38 | security_fixup_ops(ops); |
39 | return 0; |
40 | } |
41 | |
42 | static void __init do_security_initcalls(void) |
43 | { |
44 | initcall_t *call; |
45 | call = __security_initcall_start; |
46 | while (call < __security_initcall_end) { |
47 | (*call) (); |
48 | call++; |
49 | } |
50 | } |
51 | |
52 | /** |
53 | * security_init - initializes the security framework |
54 | * |
55 | * This should be called early in the kernel initialization sequence. |
56 | */ |
57 | int __init security_init(void) |
58 | { |
59 | printk(KERN_INFO "Security Framework initialized\n"); |
60 | |
61 | security_fixup_ops(&default_security_ops); |
62 | security_ops = &default_security_ops; |
63 | do_security_initcalls(); |
64 | |
65 | return 0; |
66 | } |
67 | |
68 | void reset_security_ops(void) |
69 | { |
70 | security_ops = &default_security_ops; |
71 | } |
72 | |
73 | /* Save user chosen LSM */ |
74 | static int __init choose_lsm(char *str) |
75 | { |
76 | strncpy(chosen_lsm, str, SECURITY_NAME_MAX); |
77 | return 1; |
78 | } |
79 | __setup("security=", choose_lsm); |
80 | |
81 | /** |
82 | * security_module_enable - Load given security module on boot ? |
83 | * @ops: a pointer to the struct security_operations that is to be checked. |
84 | * |
85 | * Each LSM must pass this method before registering its own operations |
86 | * to avoid security registration races. This method may also be used |
87 | * to check if your LSM is currently loaded during kernel initialization. |
88 | * |
89 | * Return true if: |
90 | * -The passed LSM is the one chosen by user at boot time, |
91 | * -or the passed LSM is configured as the default and the user did not |
92 | * choose an alternate LSM at boot time. |
93 | * Otherwise, return false. |
94 | */ |
95 | int __init security_module_enable(struct security_operations *ops) |
96 | { |
97 | return !strcmp(ops->name, chosen_lsm); |
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 __init 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_access_check(struct task_struct *child, unsigned int mode) |
131 | { |
132 | return security_ops->ptrace_access_check(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(current, current_cred(), cap, |
160 | SECURITY_CAP_AUDIT); |
161 | } |
162 | |
163 | int security_real_capable(struct task_struct *tsk, int cap) |
164 | { |
165 | const struct cred *cred; |
166 | int ret; |
167 | |
168 | cred = get_task_cred(tsk); |
169 | ret = security_ops->capable(tsk, cred, cap, SECURITY_CAP_AUDIT); |
170 | put_cred(cred); |
171 | return ret; |
172 | } |
173 | |
174 | int security_real_capable_noaudit(struct task_struct *tsk, int cap) |
175 | { |
176 | const struct cred *cred; |
177 | int ret; |
178 | |
179 | cred = get_task_cred(tsk); |
180 | ret = security_ops->capable(tsk, cred, cap, SECURITY_CAP_NOAUDIT); |
181 | put_cred(cred); |
182 | return ret; |
183 | } |
184 | |
185 | int security_sysctl(struct ctl_table *table, int op) |
186 | { |
187 | return security_ops->sysctl(table, op); |
188 | } |
189 | |
190 | int security_quotactl(int cmds, int type, int id, struct super_block *sb) |
191 | { |
192 | return security_ops->quotactl(cmds, type, id, sb); |
193 | } |
194 | |
195 | int security_quota_on(struct dentry *dentry) |
196 | { |
197 | return security_ops->quota_on(dentry); |
198 | } |
199 | |
200 | int security_syslog(int type) |
201 | { |
202 | return security_ops->syslog(type); |
203 | } |
204 | |
205 | int security_settime(struct timespec *ts, struct timezone *tz) |
206 | { |
207 | return security_ops->settime(ts, tz); |
208 | } |
209 | |
210 | int security_vm_enough_memory(long pages) |
211 | { |
212 | WARN_ON(current->mm == NULL); |
213 | return security_ops->vm_enough_memory(current->mm, pages); |
214 | } |
215 | |
216 | int security_vm_enough_memory_mm(struct mm_struct *mm, long pages) |
217 | { |
218 | WARN_ON(mm == NULL); |
219 | return security_ops->vm_enough_memory(mm, pages); |
220 | } |
221 | |
222 | int security_vm_enough_memory_kern(long pages) |
223 | { |
224 | /* If current->mm is a kernel thread then we will pass NULL, |
225 | for this specific case that is fine */ |
226 | return security_ops->vm_enough_memory(current->mm, pages); |
227 | } |
228 | |
229 | int security_bprm_set_creds(struct linux_binprm *bprm) |
230 | { |
231 | return security_ops->bprm_set_creds(bprm); |
232 | } |
233 | |
234 | int security_bprm_check(struct linux_binprm *bprm) |
235 | { |
236 | int ret; |
237 | |
238 | ret = security_ops->bprm_check_security(bprm); |
239 | if (ret) |
240 | return ret; |
241 | return ima_bprm_check(bprm); |
242 | } |
243 | |
244 | void security_bprm_committing_creds(struct linux_binprm *bprm) |
245 | { |
246 | security_ops->bprm_committing_creds(bprm); |
247 | } |
248 | |
249 | void security_bprm_committed_creds(struct linux_binprm *bprm) |
250 | { |
251 | security_ops->bprm_committed_creds(bprm); |
252 | } |
253 | |
254 | int security_bprm_secureexec(struct linux_binprm *bprm) |
255 | { |
256 | return security_ops->bprm_secureexec(bprm); |
257 | } |
258 | |
259 | int security_sb_alloc(struct super_block *sb) |
260 | { |
261 | return security_ops->sb_alloc_security(sb); |
262 | } |
263 | |
264 | void security_sb_free(struct super_block *sb) |
265 | { |
266 | security_ops->sb_free_security(sb); |
267 | } |
268 | |
269 | int security_sb_copy_data(char *orig, char *copy) |
270 | { |
271 | return security_ops->sb_copy_data(orig, copy); |
272 | } |
273 | EXPORT_SYMBOL(security_sb_copy_data); |
274 | |
275 | int security_sb_kern_mount(struct super_block *sb, int flags, void *data) |
276 | { |
277 | return security_ops->sb_kern_mount(sb, flags, data); |
278 | } |
279 | |
280 | int security_sb_show_options(struct seq_file *m, struct super_block *sb) |
281 | { |
282 | return security_ops->sb_show_options(m, sb); |
283 | } |
284 | |
285 | int security_sb_statfs(struct dentry *dentry) |
286 | { |
287 | return security_ops->sb_statfs(dentry); |
288 | } |
289 | |
290 | int security_sb_mount(char *dev_name, struct path *path, |
291 | char *type, unsigned long flags, void *data) |
292 | { |
293 | return security_ops->sb_mount(dev_name, path, type, flags, data); |
294 | } |
295 | |
296 | int security_sb_umount(struct vfsmount *mnt, int flags) |
297 | { |
298 | return security_ops->sb_umount(mnt, flags); |
299 | } |
300 | |
301 | int security_sb_pivotroot(struct path *old_path, struct path *new_path) |
302 | { |
303 | return security_ops->sb_pivotroot(old_path, new_path); |
304 | } |
305 | |
306 | int security_sb_set_mnt_opts(struct super_block *sb, |
307 | struct security_mnt_opts *opts) |
308 | { |
309 | return security_ops->sb_set_mnt_opts(sb, opts); |
310 | } |
311 | EXPORT_SYMBOL(security_sb_set_mnt_opts); |
312 | |
313 | void security_sb_clone_mnt_opts(const struct super_block *oldsb, |
314 | struct super_block *newsb) |
315 | { |
316 | security_ops->sb_clone_mnt_opts(oldsb, newsb); |
317 | } |
318 | EXPORT_SYMBOL(security_sb_clone_mnt_opts); |
319 | |
320 | int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts) |
321 | { |
322 | return security_ops->sb_parse_opts_str(options, opts); |
323 | } |
324 | EXPORT_SYMBOL(security_sb_parse_opts_str); |
325 | |
326 | int security_inode_alloc(struct inode *inode) |
327 | { |
328 | inode->i_security = NULL; |
329 | return security_ops->inode_alloc_security(inode); |
330 | } |
331 | |
332 | void security_inode_free(struct inode *inode) |
333 | { |
334 | ima_inode_free(inode); |
335 | security_ops->inode_free_security(inode); |
336 | } |
337 | |
338 | int security_inode_init_security(struct inode *inode, struct inode *dir, |
339 | char **name, void **value, size_t *len) |
340 | { |
341 | if (unlikely(IS_PRIVATE(inode))) |
342 | return -EOPNOTSUPP; |
343 | return security_ops->inode_init_security(inode, dir, name, value, len); |
344 | } |
345 | EXPORT_SYMBOL(security_inode_init_security); |
346 | |
347 | #ifdef CONFIG_SECURITY_PATH |
348 | int security_path_mknod(struct path *dir, struct dentry *dentry, int mode, |
349 | unsigned int dev) |
350 | { |
351 | if (unlikely(IS_PRIVATE(dir->dentry->d_inode))) |
352 | return 0; |
353 | return security_ops->path_mknod(dir, dentry, mode, dev); |
354 | } |
355 | EXPORT_SYMBOL(security_path_mknod); |
356 | |
357 | int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode) |
358 | { |
359 | if (unlikely(IS_PRIVATE(dir->dentry->d_inode))) |
360 | return 0; |
361 | return security_ops->path_mkdir(dir, dentry, mode); |
362 | } |
363 | |
364 | int security_path_rmdir(struct path *dir, struct dentry *dentry) |
365 | { |
366 | if (unlikely(IS_PRIVATE(dir->dentry->d_inode))) |
367 | return 0; |
368 | return security_ops->path_rmdir(dir, dentry); |
369 | } |
370 | |
371 | int security_path_unlink(struct path *dir, struct dentry *dentry) |
372 | { |
373 | if (unlikely(IS_PRIVATE(dir->dentry->d_inode))) |
374 | return 0; |
375 | return security_ops->path_unlink(dir, dentry); |
376 | } |
377 | |
378 | int security_path_symlink(struct path *dir, struct dentry *dentry, |
379 | const char *old_name) |
380 | { |
381 | if (unlikely(IS_PRIVATE(dir->dentry->d_inode))) |
382 | return 0; |
383 | return security_ops->path_symlink(dir, dentry, old_name); |
384 | } |
385 | |
386 | int security_path_link(struct dentry *old_dentry, struct path *new_dir, |
387 | struct dentry *new_dentry) |
388 | { |
389 | if (unlikely(IS_PRIVATE(old_dentry->d_inode))) |
390 | return 0; |
391 | return security_ops->path_link(old_dentry, new_dir, new_dentry); |
392 | } |
393 | |
394 | int security_path_rename(struct path *old_dir, struct dentry *old_dentry, |
395 | struct path *new_dir, struct dentry *new_dentry) |
396 | { |
397 | if (unlikely(IS_PRIVATE(old_dentry->d_inode) || |
398 | (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode)))) |
399 | return 0; |
400 | return security_ops->path_rename(old_dir, old_dentry, new_dir, |
401 | new_dentry); |
402 | } |
403 | |
404 | int security_path_truncate(struct path *path) |
405 | { |
406 | if (unlikely(IS_PRIVATE(path->dentry->d_inode))) |
407 | return 0; |
408 | return security_ops->path_truncate(path); |
409 | } |
410 | |
411 | int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt, |
412 | mode_t mode) |
413 | { |
414 | if (unlikely(IS_PRIVATE(dentry->d_inode))) |
415 | return 0; |
416 | return security_ops->path_chmod(dentry, mnt, mode); |
417 | } |
418 | |
419 | int security_path_chown(struct path *path, uid_t uid, gid_t gid) |
420 | { |
421 | if (unlikely(IS_PRIVATE(path->dentry->d_inode))) |
422 | return 0; |
423 | return security_ops->path_chown(path, uid, gid); |
424 | } |
425 | |
426 | int security_path_chroot(struct path *path) |
427 | { |
428 | return security_ops->path_chroot(path); |
429 | } |
430 | #endif |
431 | |
432 | int security_inode_create(struct inode *dir, struct dentry *dentry, int mode) |
433 | { |
434 | if (unlikely(IS_PRIVATE(dir))) |
435 | return 0; |
436 | return security_ops->inode_create(dir, dentry, mode); |
437 | } |
438 | EXPORT_SYMBOL_GPL(security_inode_create); |
439 | |
440 | int security_inode_link(struct dentry *old_dentry, struct inode *dir, |
441 | struct dentry *new_dentry) |
442 | { |
443 | if (unlikely(IS_PRIVATE(old_dentry->d_inode))) |
444 | return 0; |
445 | return security_ops->inode_link(old_dentry, dir, new_dentry); |
446 | } |
447 | |
448 | int security_inode_unlink(struct inode *dir, struct dentry *dentry) |
449 | { |
450 | if (unlikely(IS_PRIVATE(dentry->d_inode))) |
451 | return 0; |
452 | return security_ops->inode_unlink(dir, dentry); |
453 | } |
454 | |
455 | int security_inode_symlink(struct inode *dir, struct dentry *dentry, |
456 | const char *old_name) |
457 | { |
458 | if (unlikely(IS_PRIVATE(dir))) |
459 | return 0; |
460 | return security_ops->inode_symlink(dir, dentry, old_name); |
461 | } |
462 | |
463 | int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode) |
464 | { |
465 | if (unlikely(IS_PRIVATE(dir))) |
466 | return 0; |
467 | return security_ops->inode_mkdir(dir, dentry, mode); |
468 | } |
469 | EXPORT_SYMBOL_GPL(security_inode_mkdir); |
470 | |
471 | int security_inode_rmdir(struct inode *dir, struct dentry *dentry) |
472 | { |
473 | if (unlikely(IS_PRIVATE(dentry->d_inode))) |
474 | return 0; |
475 | return security_ops->inode_rmdir(dir, dentry); |
476 | } |
477 | |
478 | int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev) |
479 | { |
480 | if (unlikely(IS_PRIVATE(dir))) |
481 | return 0; |
482 | return security_ops->inode_mknod(dir, dentry, mode, dev); |
483 | } |
484 | |
485 | int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry, |
486 | struct inode *new_dir, struct dentry *new_dentry) |
487 | { |
488 | if (unlikely(IS_PRIVATE(old_dentry->d_inode) || |
489 | (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode)))) |
490 | return 0; |
491 | return security_ops->inode_rename(old_dir, old_dentry, |
492 | new_dir, new_dentry); |
493 | } |
494 | |
495 | int security_inode_readlink(struct dentry *dentry) |
496 | { |
497 | if (unlikely(IS_PRIVATE(dentry->d_inode))) |
498 | return 0; |
499 | return security_ops->inode_readlink(dentry); |
500 | } |
501 | |
502 | int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd) |
503 | { |
504 | if (unlikely(IS_PRIVATE(dentry->d_inode))) |
505 | return 0; |
506 | return security_ops->inode_follow_link(dentry, nd); |
507 | } |
508 | |
509 | int security_inode_permission(struct inode *inode, int mask) |
510 | { |
511 | if (unlikely(IS_PRIVATE(inode))) |
512 | return 0; |
513 | return security_ops->inode_permission(inode, mask); |
514 | } |
515 | |
516 | int security_inode_setattr(struct dentry *dentry, struct iattr *attr) |
517 | { |
518 | if (unlikely(IS_PRIVATE(dentry->d_inode))) |
519 | return 0; |
520 | return security_ops->inode_setattr(dentry, attr); |
521 | } |
522 | EXPORT_SYMBOL_GPL(security_inode_setattr); |
523 | |
524 | int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry) |
525 | { |
526 | if (unlikely(IS_PRIVATE(dentry->d_inode))) |
527 | return 0; |
528 | return security_ops->inode_getattr(mnt, dentry); |
529 | } |
530 | |
531 | int security_inode_setxattr(struct dentry *dentry, const char *name, |
532 | const void *value, size_t size, int flags) |
533 | { |
534 | if (unlikely(IS_PRIVATE(dentry->d_inode))) |
535 | return 0; |
536 | return security_ops->inode_setxattr(dentry, name, value, size, flags); |
537 | } |
538 | |
539 | void security_inode_post_setxattr(struct dentry *dentry, const char *name, |
540 | const void *value, size_t size, int flags) |
541 | { |
542 | if (unlikely(IS_PRIVATE(dentry->d_inode))) |
543 | return; |
544 | security_ops->inode_post_setxattr(dentry, name, value, size, flags); |
545 | } |
546 | |
547 | int security_inode_getxattr(struct dentry *dentry, const char *name) |
548 | { |
549 | if (unlikely(IS_PRIVATE(dentry->d_inode))) |
550 | return 0; |
551 | return security_ops->inode_getxattr(dentry, name); |
552 | } |
553 | |
554 | int security_inode_listxattr(struct dentry *dentry) |
555 | { |
556 | if (unlikely(IS_PRIVATE(dentry->d_inode))) |
557 | return 0; |
558 | return security_ops->inode_listxattr(dentry); |
559 | } |
560 | |
561 | int security_inode_removexattr(struct dentry *dentry, const char *name) |
562 | { |
563 | if (unlikely(IS_PRIVATE(dentry->d_inode))) |
564 | return 0; |
565 | return security_ops->inode_removexattr(dentry, name); |
566 | } |
567 | |
568 | int security_inode_need_killpriv(struct dentry *dentry) |
569 | { |
570 | return security_ops->inode_need_killpriv(dentry); |
571 | } |
572 | |
573 | int security_inode_killpriv(struct dentry *dentry) |
574 | { |
575 | return security_ops->inode_killpriv(dentry); |
576 | } |
577 | |
578 | int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc) |
579 | { |
580 | if (unlikely(IS_PRIVATE(inode))) |
581 | return -EOPNOTSUPP; |
582 | return security_ops->inode_getsecurity(inode, name, buffer, alloc); |
583 | } |
584 | |
585 | int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) |
586 | { |
587 | if (unlikely(IS_PRIVATE(inode))) |
588 | return -EOPNOTSUPP; |
589 | return security_ops->inode_setsecurity(inode, name, value, size, flags); |
590 | } |
591 | |
592 | int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) |
593 | { |
594 | if (unlikely(IS_PRIVATE(inode))) |
595 | return 0; |
596 | return security_ops->inode_listsecurity(inode, buffer, buffer_size); |
597 | } |
598 | |
599 | void security_inode_getsecid(const struct inode *inode, u32 *secid) |
600 | { |
601 | security_ops->inode_getsecid(inode, secid); |
602 | } |
603 | |
604 | int security_file_permission(struct file *file, int mask) |
605 | { |
606 | int ret; |
607 | |
608 | ret = security_ops->file_permission(file, mask); |
609 | if (ret) |
610 | return ret; |
611 | |
612 | return fsnotify_perm(file, mask); |
613 | } |
614 | |
615 | int security_file_alloc(struct file *file) |
616 | { |
617 | return security_ops->file_alloc_security(file); |
618 | } |
619 | |
620 | void security_file_free(struct file *file) |
621 | { |
622 | security_ops->file_free_security(file); |
623 | } |
624 | |
625 | int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
626 | { |
627 | return security_ops->file_ioctl(file, cmd, arg); |
628 | } |
629 | |
630 | int security_file_mmap(struct file *file, unsigned long reqprot, |
631 | unsigned long prot, unsigned long flags, |
632 | unsigned long addr, unsigned long addr_only) |
633 | { |
634 | int ret; |
635 | |
636 | ret = security_ops->file_mmap(file, reqprot, prot, flags, addr, addr_only); |
637 | if (ret) |
638 | return ret; |
639 | return ima_file_mmap(file, prot); |
640 | } |
641 | |
642 | int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, |
643 | unsigned long prot) |
644 | { |
645 | return security_ops->file_mprotect(vma, reqprot, prot); |
646 | } |
647 | |
648 | int security_file_lock(struct file *file, unsigned int cmd) |
649 | { |
650 | return security_ops->file_lock(file, cmd); |
651 | } |
652 | |
653 | int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg) |
654 | { |
655 | return security_ops->file_fcntl(file, cmd, arg); |
656 | } |
657 | |
658 | int security_file_set_fowner(struct file *file) |
659 | { |
660 | return security_ops->file_set_fowner(file); |
661 | } |
662 | |
663 | int security_file_send_sigiotask(struct task_struct *tsk, |
664 | struct fown_struct *fown, int sig) |
665 | { |
666 | return security_ops->file_send_sigiotask(tsk, fown, sig); |
667 | } |
668 | |
669 | int security_file_receive(struct file *file) |
670 | { |
671 | return security_ops->file_receive(file); |
672 | } |
673 | |
674 | int security_dentry_open(struct file *file, const struct cred *cred) |
675 | { |
676 | int ret; |
677 | |
678 | ret = security_ops->dentry_open(file, cred); |
679 | if (ret) |
680 | return ret; |
681 | |
682 | return fsnotify_perm(file, MAY_OPEN); |
683 | } |
684 | |
685 | int security_task_create(unsigned long clone_flags) |
686 | { |
687 | return security_ops->task_create(clone_flags); |
688 | } |
689 | |
690 | int security_cred_alloc_blank(struct cred *cred, gfp_t gfp) |
691 | { |
692 | return security_ops->cred_alloc_blank(cred, gfp); |
693 | } |
694 | |
695 | void security_cred_free(struct cred *cred) |
696 | { |
697 | security_ops->cred_free(cred); |
698 | } |
699 | |
700 | int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp) |
701 | { |
702 | return security_ops->cred_prepare(new, old, gfp); |
703 | } |
704 | |
705 | void security_transfer_creds(struct cred *new, const struct cred *old) |
706 | { |
707 | security_ops->cred_transfer(new, old); |
708 | } |
709 | |
710 | int security_kernel_act_as(struct cred *new, u32 secid) |
711 | { |
712 | return security_ops->kernel_act_as(new, secid); |
713 | } |
714 | |
715 | int security_kernel_create_files_as(struct cred *new, struct inode *inode) |
716 | { |
717 | return security_ops->kernel_create_files_as(new, inode); |
718 | } |
719 | |
720 | int security_kernel_module_request(char *kmod_name) |
721 | { |
722 | return security_ops->kernel_module_request(kmod_name); |
723 | } |
724 | |
725 | int security_task_fix_setuid(struct cred *new, const struct cred *old, |
726 | int flags) |
727 | { |
728 | return security_ops->task_fix_setuid(new, old, flags); |
729 | } |
730 | |
731 | int security_task_setpgid(struct task_struct *p, pid_t pgid) |
732 | { |
733 | return security_ops->task_setpgid(p, pgid); |
734 | } |
735 | |
736 | int security_task_getpgid(struct task_struct *p) |
737 | { |
738 | return security_ops->task_getpgid(p); |
739 | } |
740 | |
741 | int security_task_getsid(struct task_struct *p) |
742 | { |
743 | return security_ops->task_getsid(p); |
744 | } |
745 | |
746 | void security_task_getsecid(struct task_struct *p, u32 *secid) |
747 | { |
748 | security_ops->task_getsecid(p, secid); |
749 | } |
750 | EXPORT_SYMBOL(security_task_getsecid); |
751 | |
752 | int security_task_setnice(struct task_struct *p, int nice) |
753 | { |
754 | return security_ops->task_setnice(p, nice); |
755 | } |
756 | |
757 | int security_task_setioprio(struct task_struct *p, int ioprio) |
758 | { |
759 | return security_ops->task_setioprio(p, ioprio); |
760 | } |
761 | |
762 | int security_task_getioprio(struct task_struct *p) |
763 | { |
764 | return security_ops->task_getioprio(p); |
765 | } |
766 | |
767 | int security_task_setrlimit(struct task_struct *p, unsigned int resource, |
768 | struct rlimit *new_rlim) |
769 | { |
770 | return security_ops->task_setrlimit(p, resource, new_rlim); |
771 | } |
772 | |
773 | int security_task_setscheduler(struct task_struct *p) |
774 | { |
775 | return security_ops->task_setscheduler(p); |
776 | } |
777 | |
778 | int security_task_getscheduler(struct task_struct *p) |
779 | { |
780 | return security_ops->task_getscheduler(p); |
781 | } |
782 | |
783 | int security_task_movememory(struct task_struct *p) |
784 | { |
785 | return security_ops->task_movememory(p); |
786 | } |
787 | |
788 | int security_task_kill(struct task_struct *p, struct siginfo *info, |
789 | int sig, u32 secid) |
790 | { |
791 | return security_ops->task_kill(p, info, sig, secid); |
792 | } |
793 | |
794 | int security_task_wait(struct task_struct *p) |
795 | { |
796 | return security_ops->task_wait(p); |
797 | } |
798 | |
799 | int security_task_prctl(int option, unsigned long arg2, unsigned long arg3, |
800 | unsigned long arg4, unsigned long arg5) |
801 | { |
802 | return security_ops->task_prctl(option, arg2, arg3, arg4, arg5); |
803 | } |
804 | |
805 | void security_task_to_inode(struct task_struct *p, struct inode *inode) |
806 | { |
807 | security_ops->task_to_inode(p, inode); |
808 | } |
809 | |
810 | int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag) |
811 | { |
812 | return security_ops->ipc_permission(ipcp, flag); |
813 | } |
814 | |
815 | void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid) |
816 | { |
817 | security_ops->ipc_getsecid(ipcp, secid); |
818 | } |
819 | |
820 | int security_msg_msg_alloc(struct msg_msg *msg) |
821 | { |
822 | return security_ops->msg_msg_alloc_security(msg); |
823 | } |
824 | |
825 | void security_msg_msg_free(struct msg_msg *msg) |
826 | { |
827 | security_ops->msg_msg_free_security(msg); |
828 | } |
829 | |
830 | int security_msg_queue_alloc(struct msg_queue *msq) |
831 | { |
832 | return security_ops->msg_queue_alloc_security(msq); |
833 | } |
834 | |
835 | void security_msg_queue_free(struct msg_queue *msq) |
836 | { |
837 | security_ops->msg_queue_free_security(msq); |
838 | } |
839 | |
840 | int security_msg_queue_associate(struct msg_queue *msq, int msqflg) |
841 | { |
842 | return security_ops->msg_queue_associate(msq, msqflg); |
843 | } |
844 | |
845 | int security_msg_queue_msgctl(struct msg_queue *msq, int cmd) |
846 | { |
847 | return security_ops->msg_queue_msgctl(msq, cmd); |
848 | } |
849 | |
850 | int security_msg_queue_msgsnd(struct msg_queue *msq, |
851 | struct msg_msg *msg, int msqflg) |
852 | { |
853 | return security_ops->msg_queue_msgsnd(msq, msg, msqflg); |
854 | } |
855 | |
856 | int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg, |
857 | struct task_struct *target, long type, int mode) |
858 | { |
859 | return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode); |
860 | } |
861 | |
862 | int security_shm_alloc(struct shmid_kernel *shp) |
863 | { |
864 | return security_ops->shm_alloc_security(shp); |
865 | } |
866 | |
867 | void security_shm_free(struct shmid_kernel *shp) |
868 | { |
869 | security_ops->shm_free_security(shp); |
870 | } |
871 | |
872 | int security_shm_associate(struct shmid_kernel *shp, int shmflg) |
873 | { |
874 | return security_ops->shm_associate(shp, shmflg); |
875 | } |
876 | |
877 | int security_shm_shmctl(struct shmid_kernel *shp, int cmd) |
878 | { |
879 | return security_ops->shm_shmctl(shp, cmd); |
880 | } |
881 | |
882 | int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg) |
883 | { |
884 | return security_ops->shm_shmat(shp, shmaddr, shmflg); |
885 | } |
886 | |
887 | int security_sem_alloc(struct sem_array *sma) |
888 | { |
889 | return security_ops->sem_alloc_security(sma); |
890 | } |
891 | |
892 | void security_sem_free(struct sem_array *sma) |
893 | { |
894 | security_ops->sem_free_security(sma); |
895 | } |
896 | |
897 | int security_sem_associate(struct sem_array *sma, int semflg) |
898 | { |
899 | return security_ops->sem_associate(sma, semflg); |
900 | } |
901 | |
902 | int security_sem_semctl(struct sem_array *sma, int cmd) |
903 | { |
904 | return security_ops->sem_semctl(sma, cmd); |
905 | } |
906 | |
907 | int security_sem_semop(struct sem_array *sma, struct sembuf *sops, |
908 | unsigned nsops, int alter) |
909 | { |
910 | return security_ops->sem_semop(sma, sops, nsops, alter); |
911 | } |
912 | |
913 | void security_d_instantiate(struct dentry *dentry, struct inode *inode) |
914 | { |
915 | if (unlikely(inode && IS_PRIVATE(inode))) |
916 | return; |
917 | security_ops->d_instantiate(dentry, inode); |
918 | } |
919 | EXPORT_SYMBOL(security_d_instantiate); |
920 | |
921 | int security_getprocattr(struct task_struct *p, char *name, char **value) |
922 | { |
923 | return security_ops->getprocattr(p, name, value); |
924 | } |
925 | |
926 | int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size) |
927 | { |
928 | return security_ops->setprocattr(p, name, value, size); |
929 | } |
930 | |
931 | int security_netlink_send(struct sock *sk, struct sk_buff *skb) |
932 | { |
933 | return security_ops->netlink_send(sk, skb); |
934 | } |
935 | |
936 | int security_netlink_recv(struct sk_buff *skb, int cap) |
937 | { |
938 | return security_ops->netlink_recv(skb, cap); |
939 | } |
940 | EXPORT_SYMBOL(security_netlink_recv); |
941 | |
942 | int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) |
943 | { |
944 | return security_ops->secid_to_secctx(secid, secdata, seclen); |
945 | } |
946 | EXPORT_SYMBOL(security_secid_to_secctx); |
947 | |
948 | int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid) |
949 | { |
950 | return security_ops->secctx_to_secid(secdata, seclen, secid); |
951 | } |
952 | EXPORT_SYMBOL(security_secctx_to_secid); |
953 | |
954 | void security_release_secctx(char *secdata, u32 seclen) |
955 | { |
956 | security_ops->release_secctx(secdata, seclen); |
957 | } |
958 | EXPORT_SYMBOL(security_release_secctx); |
959 | |
960 | int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) |
961 | { |
962 | return security_ops->inode_notifysecctx(inode, ctx, ctxlen); |
963 | } |
964 | EXPORT_SYMBOL(security_inode_notifysecctx); |
965 | |
966 | int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen) |
967 | { |
968 | return security_ops->inode_setsecctx(dentry, ctx, ctxlen); |
969 | } |
970 | EXPORT_SYMBOL(security_inode_setsecctx); |
971 | |
972 | int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) |
973 | { |
974 | return security_ops->inode_getsecctx(inode, ctx, ctxlen); |
975 | } |
976 | EXPORT_SYMBOL(security_inode_getsecctx); |
977 | |
978 | #ifdef CONFIG_SECURITY_NETWORK |
979 | |
980 | int security_unix_stream_connect(struct socket *sock, struct socket *other, |
981 | struct sock *newsk) |
982 | { |
983 | return security_ops->unix_stream_connect(sock, other, newsk); |
984 | } |
985 | EXPORT_SYMBOL(security_unix_stream_connect); |
986 | |
987 | int security_unix_may_send(struct socket *sock, struct socket *other) |
988 | { |
989 | return security_ops->unix_may_send(sock, other); |
990 | } |
991 | EXPORT_SYMBOL(security_unix_may_send); |
992 | |
993 | int security_socket_create(int family, int type, int protocol, int kern) |
994 | { |
995 | return security_ops->socket_create(family, type, protocol, kern); |
996 | } |
997 | |
998 | int security_socket_post_create(struct socket *sock, int family, |
999 | int type, int protocol, int kern) |
1000 | { |
1001 | return security_ops->socket_post_create(sock, family, type, |
1002 | protocol, kern); |
1003 | } |
1004 | |
1005 | int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen) |
1006 | { |
1007 | return security_ops->socket_bind(sock, address, addrlen); |
1008 | } |
1009 | |
1010 | int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen) |
1011 | { |
1012 | return security_ops->socket_connect(sock, address, addrlen); |
1013 | } |
1014 | |
1015 | int security_socket_listen(struct socket *sock, int backlog) |
1016 | { |
1017 | return security_ops->socket_listen(sock, backlog); |
1018 | } |
1019 | |
1020 | int security_socket_accept(struct socket *sock, struct socket *newsock) |
1021 | { |
1022 | return security_ops->socket_accept(sock, newsock); |
1023 | } |
1024 | |
1025 | int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size) |
1026 | { |
1027 | return security_ops->socket_sendmsg(sock, msg, size); |
1028 | } |
1029 | |
1030 | int security_socket_recvmsg(struct socket *sock, struct msghdr *msg, |
1031 | int size, int flags) |
1032 | { |
1033 | return security_ops->socket_recvmsg(sock, msg, size, flags); |
1034 | } |
1035 | |
1036 | int security_socket_getsockname(struct socket *sock) |
1037 | { |
1038 | return security_ops->socket_getsockname(sock); |
1039 | } |
1040 | |
1041 | int security_socket_getpeername(struct socket *sock) |
1042 | { |
1043 | return security_ops->socket_getpeername(sock); |
1044 | } |
1045 | |
1046 | int security_socket_getsockopt(struct socket *sock, int level, int optname) |
1047 | { |
1048 | return security_ops->socket_getsockopt(sock, level, optname); |
1049 | } |
1050 | |
1051 | int security_socket_setsockopt(struct socket *sock, int level, int optname) |
1052 | { |
1053 | return security_ops->socket_setsockopt(sock, level, optname); |
1054 | } |
1055 | |
1056 | int security_socket_shutdown(struct socket *sock, int how) |
1057 | { |
1058 | return security_ops->socket_shutdown(sock, how); |
1059 | } |
1060 | |
1061 | int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) |
1062 | { |
1063 | return security_ops->socket_sock_rcv_skb(sk, skb); |
1064 | } |
1065 | EXPORT_SYMBOL(security_sock_rcv_skb); |
1066 | |
1067 | int security_socket_getpeersec_stream(struct socket *sock, char __user *optval, |
1068 | int __user *optlen, unsigned len) |
1069 | { |
1070 | return security_ops->socket_getpeersec_stream(sock, optval, optlen, len); |
1071 | } |
1072 | |
1073 | int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid) |
1074 | { |
1075 | return security_ops->socket_getpeersec_dgram(sock, skb, secid); |
1076 | } |
1077 | EXPORT_SYMBOL(security_socket_getpeersec_dgram); |
1078 | |
1079 | int security_sk_alloc(struct sock *sk, int family, gfp_t priority) |
1080 | { |
1081 | return security_ops->sk_alloc_security(sk, family, priority); |
1082 | } |
1083 | |
1084 | void security_sk_free(struct sock *sk) |
1085 | { |
1086 | security_ops->sk_free_security(sk); |
1087 | } |
1088 | |
1089 | void security_sk_clone(const struct sock *sk, struct sock *newsk) |
1090 | { |
1091 | security_ops->sk_clone_security(sk, newsk); |
1092 | } |
1093 | |
1094 | void security_sk_classify_flow(struct sock *sk, struct flowi *fl) |
1095 | { |
1096 | security_ops->sk_getsecid(sk, &fl->secid); |
1097 | } |
1098 | EXPORT_SYMBOL(security_sk_classify_flow); |
1099 | |
1100 | void security_req_classify_flow(const struct request_sock *req, struct flowi *fl) |
1101 | { |
1102 | security_ops->req_classify_flow(req, fl); |
1103 | } |
1104 | EXPORT_SYMBOL(security_req_classify_flow); |
1105 | |
1106 | void security_sock_graft(struct sock *sk, struct socket *parent) |
1107 | { |
1108 | security_ops->sock_graft(sk, parent); |
1109 | } |
1110 | EXPORT_SYMBOL(security_sock_graft); |
1111 | |
1112 | int security_inet_conn_request(struct sock *sk, |
1113 | struct sk_buff *skb, struct request_sock *req) |
1114 | { |
1115 | return security_ops->inet_conn_request(sk, skb, req); |
1116 | } |
1117 | EXPORT_SYMBOL(security_inet_conn_request); |
1118 | |
1119 | void security_inet_csk_clone(struct sock *newsk, |
1120 | const struct request_sock *req) |
1121 | { |
1122 | security_ops->inet_csk_clone(newsk, req); |
1123 | } |
1124 | |
1125 | void security_inet_conn_established(struct sock *sk, |
1126 | struct sk_buff *skb) |
1127 | { |
1128 | security_ops->inet_conn_established(sk, skb); |
1129 | } |
1130 | |
1131 | int security_secmark_relabel_packet(u32 secid) |
1132 | { |
1133 | return security_ops->secmark_relabel_packet(secid); |
1134 | } |
1135 | EXPORT_SYMBOL(security_secmark_relabel_packet); |
1136 | |
1137 | void security_secmark_refcount_inc(void) |
1138 | { |
1139 | security_ops->secmark_refcount_inc(); |
1140 | } |
1141 | EXPORT_SYMBOL(security_secmark_refcount_inc); |
1142 | |
1143 | void security_secmark_refcount_dec(void) |
1144 | { |
1145 | security_ops->secmark_refcount_dec(); |
1146 | } |
1147 | EXPORT_SYMBOL(security_secmark_refcount_dec); |
1148 | |
1149 | int security_tun_dev_create(void) |
1150 | { |
1151 | return security_ops->tun_dev_create(); |
1152 | } |
1153 | EXPORT_SYMBOL(security_tun_dev_create); |
1154 | |
1155 | void security_tun_dev_post_create(struct sock *sk) |
1156 | { |
1157 | return security_ops->tun_dev_post_create(sk); |
1158 | } |
1159 | EXPORT_SYMBOL(security_tun_dev_post_create); |
1160 | |
1161 | int security_tun_dev_attach(struct sock *sk) |
1162 | { |
1163 | return security_ops->tun_dev_attach(sk); |
1164 | } |
1165 | EXPORT_SYMBOL(security_tun_dev_attach); |
1166 | |
1167 | #endif /* CONFIG_SECURITY_NETWORK */ |
1168 | |
1169 | #ifdef CONFIG_SECURITY_NETWORK_XFRM |
1170 | |
1171 | int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx) |
1172 | { |
1173 | return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx); |
1174 | } |
1175 | EXPORT_SYMBOL(security_xfrm_policy_alloc); |
1176 | |
1177 | int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, |
1178 | struct xfrm_sec_ctx **new_ctxp) |
1179 | { |
1180 | return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp); |
1181 | } |
1182 | |
1183 | void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx) |
1184 | { |
1185 | security_ops->xfrm_policy_free_security(ctx); |
1186 | } |
1187 | EXPORT_SYMBOL(security_xfrm_policy_free); |
1188 | |
1189 | int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx) |
1190 | { |
1191 | return security_ops->xfrm_policy_delete_security(ctx); |
1192 | } |
1193 | |
1194 | int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx) |
1195 | { |
1196 | return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0); |
1197 | } |
1198 | EXPORT_SYMBOL(security_xfrm_state_alloc); |
1199 | |
1200 | int security_xfrm_state_alloc_acquire(struct xfrm_state *x, |
1201 | struct xfrm_sec_ctx *polsec, u32 secid) |
1202 | { |
1203 | if (!polsec) |
1204 | return 0; |
1205 | /* |
1206 | * We want the context to be taken from secid which is usually |
1207 | * from the sock. |
1208 | */ |
1209 | return security_ops->xfrm_state_alloc_security(x, NULL, secid); |
1210 | } |
1211 | |
1212 | int security_xfrm_state_delete(struct xfrm_state *x) |
1213 | { |
1214 | return security_ops->xfrm_state_delete_security(x); |
1215 | } |
1216 | EXPORT_SYMBOL(security_xfrm_state_delete); |
1217 | |
1218 | void security_xfrm_state_free(struct xfrm_state *x) |
1219 | { |
1220 | security_ops->xfrm_state_free_security(x); |
1221 | } |
1222 | |
1223 | int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir) |
1224 | { |
1225 | return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir); |
1226 | } |
1227 | |
1228 | int security_xfrm_state_pol_flow_match(struct xfrm_state *x, |
1229 | struct xfrm_policy *xp, struct flowi *fl) |
1230 | { |
1231 | return security_ops->xfrm_state_pol_flow_match(x, xp, fl); |
1232 | } |
1233 | |
1234 | int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid) |
1235 | { |
1236 | return security_ops->xfrm_decode_session(skb, secid, 1); |
1237 | } |
1238 | |
1239 | void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl) |
1240 | { |
1241 | int rc = security_ops->xfrm_decode_session(skb, &fl->secid, 0); |
1242 | |
1243 | BUG_ON(rc); |
1244 | } |
1245 | EXPORT_SYMBOL(security_skb_classify_flow); |
1246 | |
1247 | #endif /* CONFIG_SECURITY_NETWORK_XFRM */ |
1248 | |
1249 | #ifdef CONFIG_KEYS |
1250 | |
1251 | int security_key_alloc(struct key *key, const struct cred *cred, |
1252 | unsigned long flags) |
1253 | { |
1254 | return security_ops->key_alloc(key, cred, flags); |
1255 | } |
1256 | |
1257 | void security_key_free(struct key *key) |
1258 | { |
1259 | security_ops->key_free(key); |
1260 | } |
1261 | |
1262 | int security_key_permission(key_ref_t key_ref, |
1263 | const struct cred *cred, key_perm_t perm) |
1264 | { |
1265 | return security_ops->key_permission(key_ref, cred, perm); |
1266 | } |
1267 | |
1268 | int security_key_getsecurity(struct key *key, char **_buffer) |
1269 | { |
1270 | return security_ops->key_getsecurity(key, _buffer); |
1271 | } |
1272 | |
1273 | #endif /* CONFIG_KEYS */ |
1274 | |
1275 | #ifdef CONFIG_AUDIT |
1276 | |
1277 | int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule) |
1278 | { |
1279 | return security_ops->audit_rule_init(field, op, rulestr, lsmrule); |
1280 | } |
1281 | |
1282 | int security_audit_rule_known(struct audit_krule *krule) |
1283 | { |
1284 | return security_ops->audit_rule_known(krule); |
1285 | } |
1286 | |
1287 | void security_audit_rule_free(void *lsmrule) |
1288 | { |
1289 | security_ops->audit_rule_free(lsmrule); |
1290 | } |
1291 | |
1292 | int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule, |
1293 | struct audit_context *actx) |
1294 | { |
1295 | return security_ops->audit_rule_match(secid, field, op, lsmrule, actx); |
1296 | } |
1297 | |
1298 | #endif /* CONFIG_AUDIT */ |
1299 |
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v2.6.34-rc5
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