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1da177e4
LT
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
c59ede7b 14#include <linux/capability.h>
1da177e4
LT
15#include <linux/module.h>
16#include <linux/init.h>
17#include <linux/kernel.h>
1da177e4 18#include <linux/security.h>
6c21a7fb 19#include <linux/ima.h>
1da177e4 20
076c54c5 21/* Boot-time LSM user choice */
6e65f92f
JJ
22static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
23 CONFIG_DEFAULT_SECURITY;
1da177e4 24
5915eb53 25/* things that live in capability.c */
c80901f2 26extern void __init security_fixup_ops(struct security_operations *ops);
1da177e4 27
189b3b1c 28static struct security_operations *security_ops;
29static struct security_operations default_security_ops = {
30 .name = "default",
31};
a5ecbcb8 32
c80901f2 33static inline int __init verify(struct security_operations *ops)
1da177e4
LT
34{
35 /* verify the security_operations structure exists */
36 if (!ops)
37 return -EINVAL;
38 security_fixup_ops(ops);
39 return 0;
40}
41
42static 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 */
57int __init security_init(void)
58{
20510f2f 59 printk(KERN_INFO "Security Framework initialized\n");
1da177e4 60
5915eb53
MS
61 security_fixup_ops(&default_security_ops);
62 security_ops = &default_security_ops;
1da177e4
LT
63 do_security_initcalls();
64
65 return 0;
66}
67
189b3b1c 68void reset_security_ops(void)
69{
70 security_ops = &default_security_ops;
71}
72
076c54c5
AD
73/* Save user chosen LSM */
74static 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
7cea51be 87 * to check if your LSM is currently loaded during kernel initialization.
076c54c5
AD
88 *
89 * Return true if:
90 * -The passed LSM is the one chosen by user at boot time,
6e65f92f
JJ
91 * -or the passed LSM is configured as the default and the user did not
92 * choose an alternate LSM at boot time,
93 * -or there is no default LSM set and the user didn't specify a
94 * specific LSM and we're the first to ask for registration permission,
076c54c5
AD
95 * -or the passed LSM is currently loaded.
96 * Otherwise, return false.
97 */
98int __init security_module_enable(struct security_operations *ops)
99{
100 if (!*chosen_lsm)
101 strncpy(chosen_lsm, ops->name, SECURITY_NAME_MAX);
102 else if (strncmp(ops->name, chosen_lsm, SECURITY_NAME_MAX))
103 return 0;
104
105 return 1;
106}
107
1da177e4
LT
108/**
109 * register_security - registers a security framework with the kernel
110 * @ops: a pointer to the struct security_options that is to be registered
111 *
3f23d815 112 * This function allows a security module to register itself with the
1da177e4 113 * kernel security subsystem. Some rudimentary checking is done on the @ops
076c54c5
AD
114 * value passed to this function. You'll need to check first if your LSM
115 * is allowed to register its @ops by calling security_module_enable(@ops).
1da177e4
LT
116 *
117 * If there is already a security module registered with the kernel,
3f23d815 118 * an error will be returned. Otherwise %0 is returned on success.
1da177e4 119 */
c1e992b9 120int __init register_security(struct security_operations *ops)
1da177e4
LT
121{
122 if (verify(ops)) {
123 printk(KERN_DEBUG "%s could not verify "
dd6f953a 124 "security_operations structure.\n", __func__);
1da177e4
LT
125 return -EINVAL;
126 }
127
5915eb53 128 if (security_ops != &default_security_ops)
1da177e4
LT
129 return -EAGAIN;
130
131 security_ops = ops;
132
133 return 0;
134}
135
20510f2f
JM
136/* Security operations */
137
9e48858f 138int security_ptrace_access_check(struct task_struct *child, unsigned int mode)
20510f2f 139{
9e48858f 140 return security_ops->ptrace_access_check(child, mode);
5cd9c58f
DH
141}
142
143int security_ptrace_traceme(struct task_struct *parent)
144{
145 return security_ops->ptrace_traceme(parent);
20510f2f
JM
146}
147
148int security_capget(struct task_struct *target,
149 kernel_cap_t *effective,
150 kernel_cap_t *inheritable,
151 kernel_cap_t *permitted)
152{
153 return security_ops->capget(target, effective, inheritable, permitted);
154}
155
d84f4f99
DH
156int security_capset(struct cred *new, const struct cred *old,
157 const kernel_cap_t *effective,
158 const kernel_cap_t *inheritable,
159 const kernel_cap_t *permitted)
20510f2f 160{
d84f4f99
DH
161 return security_ops->capset(new, old,
162 effective, inheritable, permitted);
20510f2f
JM
163}
164
3699c53c 165int security_capable(int cap)
20510f2f 166{
3699c53c
DH
167 return security_ops->capable(current, current_cred(), cap,
168 SECURITY_CAP_AUDIT);
06112163
EP
169}
170
3699c53c 171int security_real_capable(struct task_struct *tsk, int cap)
06112163 172{
3699c53c
DH
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_AUDIT);
178 put_cred(cred);
179 return ret;
180}
181
182int security_real_capable_noaudit(struct task_struct *tsk, int cap)
183{
184 const struct cred *cred;
185 int ret;
186
187 cred = get_task_cred(tsk);
188 ret = security_ops->capable(tsk, cred, cap, SECURITY_CAP_NOAUDIT);
189 put_cred(cred);
190 return ret;
20510f2f
JM
191}
192
20510f2f
JM
193int security_sysctl(struct ctl_table *table, int op)
194{
195 return security_ops->sysctl(table, op);
196}
197
198int security_quotactl(int cmds, int type, int id, struct super_block *sb)
199{
200 return security_ops->quotactl(cmds, type, id, sb);
201}
202
203int security_quota_on(struct dentry *dentry)
204{
205 return security_ops->quota_on(dentry);
206}
207
00234592 208int security_syslog(int type, bool from_file)
20510f2f 209{
00234592 210 return security_ops->syslog(type, from_file);
20510f2f
JM
211}
212
213int security_settime(struct timespec *ts, struct timezone *tz)
214{
215 return security_ops->settime(ts, tz);
216}
217
218int security_vm_enough_memory(long pages)
219{
731572d3 220 WARN_ON(current->mm == NULL);
20510f2f
JM
221 return security_ops->vm_enough_memory(current->mm, pages);
222}
223
224int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
225{
731572d3 226 WARN_ON(mm == NULL);
20510f2f
JM
227 return security_ops->vm_enough_memory(mm, pages);
228}
229
731572d3
AC
230int security_vm_enough_memory_kern(long pages)
231{
232 /* If current->mm is a kernel thread then we will pass NULL,
233 for this specific case that is fine */
234 return security_ops->vm_enough_memory(current->mm, pages);
235}
236
a6f76f23 237int security_bprm_set_creds(struct linux_binprm *bprm)
20510f2f 238{
a6f76f23 239 return security_ops->bprm_set_creds(bprm);
20510f2f
JM
240}
241
a6f76f23 242int security_bprm_check(struct linux_binprm *bprm)
20510f2f 243{
6c21a7fb
MZ
244 int ret;
245
246 ret = security_ops->bprm_check_security(bprm);
247 if (ret)
248 return ret;
249 return ima_bprm_check(bprm);
20510f2f
JM
250}
251
a6f76f23 252void security_bprm_committing_creds(struct linux_binprm *bprm)
20510f2f 253{
200036ca 254 security_ops->bprm_committing_creds(bprm);
20510f2f
JM
255}
256
a6f76f23 257void security_bprm_committed_creds(struct linux_binprm *bprm)
20510f2f 258{
200036ca 259 security_ops->bprm_committed_creds(bprm);
20510f2f
JM
260}
261
262int security_bprm_secureexec(struct linux_binprm *bprm)
263{
264 return security_ops->bprm_secureexec(bprm);
265}
266
267int security_sb_alloc(struct super_block *sb)
268{
269 return security_ops->sb_alloc_security(sb);
270}
271
272void security_sb_free(struct super_block *sb)
273{
274 security_ops->sb_free_security(sb);
275}
276
e0007529 277int security_sb_copy_data(char *orig, char *copy)
20510f2f 278{
e0007529 279 return security_ops->sb_copy_data(orig, copy);
20510f2f 280}
e0007529 281EXPORT_SYMBOL(security_sb_copy_data);
20510f2f 282
12204e24 283int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
20510f2f 284{
12204e24 285 return security_ops->sb_kern_mount(sb, flags, data);
20510f2f
JM
286}
287
2069f457
EP
288int security_sb_show_options(struct seq_file *m, struct super_block *sb)
289{
290 return security_ops->sb_show_options(m, sb);
291}
292
20510f2f
JM
293int security_sb_statfs(struct dentry *dentry)
294{
295 return security_ops->sb_statfs(dentry);
296}
297
b5266eb4 298int security_sb_mount(char *dev_name, struct path *path,
20510f2f
JM
299 char *type, unsigned long flags, void *data)
300{
b5266eb4 301 return security_ops->sb_mount(dev_name, path, type, flags, data);
20510f2f
JM
302}
303
20510f2f
JM
304int security_sb_umount(struct vfsmount *mnt, int flags)
305{
306 return security_ops->sb_umount(mnt, flags);
307}
308
b5266eb4 309int security_sb_pivotroot(struct path *old_path, struct path *new_path)
20510f2f 310{
b5266eb4 311 return security_ops->sb_pivotroot(old_path, new_path);
20510f2f
JM
312}
313
c9180a57 314int security_sb_set_mnt_opts(struct super_block *sb,
e0007529 315 struct security_mnt_opts *opts)
c9180a57 316{
e0007529 317 return security_ops->sb_set_mnt_opts(sb, opts);
c9180a57 318}
e0007529 319EXPORT_SYMBOL(security_sb_set_mnt_opts);
c9180a57
EP
320
321void security_sb_clone_mnt_opts(const struct super_block *oldsb,
322 struct super_block *newsb)
323{
324 security_ops->sb_clone_mnt_opts(oldsb, newsb);
325}
e0007529
EP
326EXPORT_SYMBOL(security_sb_clone_mnt_opts);
327
328int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
329{
330 return security_ops->sb_parse_opts_str(options, opts);
331}
332EXPORT_SYMBOL(security_sb_parse_opts_str);
c9180a57 333
20510f2f
JM
334int security_inode_alloc(struct inode *inode)
335{
336 inode->i_security = NULL;
bc7d2a3e 337 return security_ops->inode_alloc_security(inode);
20510f2f
JM
338}
339
340void security_inode_free(struct inode *inode)
341{
6c21a7fb 342 ima_inode_free(inode);
20510f2f
JM
343 security_ops->inode_free_security(inode);
344}
345
346int security_inode_init_security(struct inode *inode, struct inode *dir,
347 char **name, void **value, size_t *len)
348{
349 if (unlikely(IS_PRIVATE(inode)))
350 return -EOPNOTSUPP;
351 return security_ops->inode_init_security(inode, dir, name, value, len);
352}
353EXPORT_SYMBOL(security_inode_init_security);
354
be6d3e56 355#ifdef CONFIG_SECURITY_PATH
5d0901a3 356int security_path_mknod(struct path *dir, struct dentry *dentry, int mode,
be6d3e56
KT
357 unsigned int dev)
358{
5d0901a3 359 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
be6d3e56 360 return 0;
5d0901a3 361 return security_ops->path_mknod(dir, dentry, mode, dev);
be6d3e56
KT
362}
363EXPORT_SYMBOL(security_path_mknod);
364
5d0901a3 365int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode)
be6d3e56 366{
5d0901a3 367 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
be6d3e56 368 return 0;
5d0901a3 369 return security_ops->path_mkdir(dir, dentry, mode);
be6d3e56
KT
370}
371
5d0901a3 372int security_path_rmdir(struct path *dir, struct dentry *dentry)
be6d3e56 373{
5d0901a3 374 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
be6d3e56 375 return 0;
5d0901a3 376 return security_ops->path_rmdir(dir, dentry);
be6d3e56
KT
377}
378
5d0901a3 379int security_path_unlink(struct path *dir, struct dentry *dentry)
be6d3e56 380{
5d0901a3 381 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
be6d3e56 382 return 0;
5d0901a3 383 return security_ops->path_unlink(dir, dentry);
be6d3e56
KT
384}
385
5d0901a3 386int security_path_symlink(struct path *dir, struct dentry *dentry,
be6d3e56
KT
387 const char *old_name)
388{
5d0901a3 389 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
be6d3e56 390 return 0;
5d0901a3 391 return security_ops->path_symlink(dir, dentry, old_name);
be6d3e56
KT
392}
393
394int security_path_link(struct dentry *old_dentry, struct path *new_dir,
395 struct dentry *new_dentry)
396{
397 if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
398 return 0;
399 return security_ops->path_link(old_dentry, new_dir, new_dentry);
400}
401
402int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
403 struct path *new_dir, struct dentry *new_dentry)
404{
405 if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
406 (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
407 return 0;
408 return security_ops->path_rename(old_dir, old_dentry, new_dir,
409 new_dentry);
410}
411
ea0d3ab2 412int security_path_truncate(struct path *path)
be6d3e56
KT
413{
414 if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
415 return 0;
ea0d3ab2 416 return security_ops->path_truncate(path);
be6d3e56 417}
89eda068
TH
418
419int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
420 mode_t mode)
421{
422 if (unlikely(IS_PRIVATE(dentry->d_inode)))
423 return 0;
424 return security_ops->path_chmod(dentry, mnt, mode);
425}
426
427int security_path_chown(struct path *path, uid_t uid, gid_t gid)
428{
429 if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
430 return 0;
431 return security_ops->path_chown(path, uid, gid);
432}
8b8efb44
TH
433
434int security_path_chroot(struct path *path)
435{
436 return security_ops->path_chroot(path);
437}
be6d3e56
KT
438#endif
439
20510f2f
JM
440int security_inode_create(struct inode *dir, struct dentry *dentry, int mode)
441{
442 if (unlikely(IS_PRIVATE(dir)))
443 return 0;
444 return security_ops->inode_create(dir, dentry, mode);
445}
800a9647 446EXPORT_SYMBOL_GPL(security_inode_create);
20510f2f
JM
447
448int security_inode_link(struct dentry *old_dentry, struct inode *dir,
449 struct dentry *new_dentry)
450{
451 if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
452 return 0;
453 return security_ops->inode_link(old_dentry, dir, new_dentry);
454}
455
456int security_inode_unlink(struct inode *dir, struct dentry *dentry)
457{
458 if (unlikely(IS_PRIVATE(dentry->d_inode)))
459 return 0;
460 return security_ops->inode_unlink(dir, dentry);
461}
462
463int security_inode_symlink(struct inode *dir, struct dentry *dentry,
464 const char *old_name)
465{
466 if (unlikely(IS_PRIVATE(dir)))
467 return 0;
468 return security_ops->inode_symlink(dir, dentry, old_name);
469}
470
471int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode)
472{
473 if (unlikely(IS_PRIVATE(dir)))
474 return 0;
475 return security_ops->inode_mkdir(dir, dentry, mode);
476}
800a9647 477EXPORT_SYMBOL_GPL(security_inode_mkdir);
20510f2f
JM
478
479int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
480{
481 if (unlikely(IS_PRIVATE(dentry->d_inode)))
482 return 0;
483 return security_ops->inode_rmdir(dir, dentry);
484}
485
486int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
487{
488 if (unlikely(IS_PRIVATE(dir)))
489 return 0;
490 return security_ops->inode_mknod(dir, dentry, mode, dev);
491}
492
493int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
494 struct inode *new_dir, struct dentry *new_dentry)
495{
496 if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
497 (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
498 return 0;
499 return security_ops->inode_rename(old_dir, old_dentry,
500 new_dir, new_dentry);
501}
502
503int security_inode_readlink(struct dentry *dentry)
504{
505 if (unlikely(IS_PRIVATE(dentry->d_inode)))
506 return 0;
507 return security_ops->inode_readlink(dentry);
508}
509
510int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
511{
512 if (unlikely(IS_PRIVATE(dentry->d_inode)))
513 return 0;
514 return security_ops->inode_follow_link(dentry, nd);
515}
516
b77b0646 517int security_inode_permission(struct inode *inode, int mask)
20510f2f
JM
518{
519 if (unlikely(IS_PRIVATE(inode)))
520 return 0;
b77b0646 521 return security_ops->inode_permission(inode, mask);
20510f2f
JM
522}
523
524int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
525{
526 if (unlikely(IS_PRIVATE(dentry->d_inode)))
527 return 0;
528 return security_ops->inode_setattr(dentry, attr);
529}
b1da47e2 530EXPORT_SYMBOL_GPL(security_inode_setattr);
20510f2f
JM
531
532int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
533{
534 if (unlikely(IS_PRIVATE(dentry->d_inode)))
535 return 0;
536 return security_ops->inode_getattr(mnt, dentry);
537}
538
8f0cfa52
DH
539int security_inode_setxattr(struct dentry *dentry, const char *name,
540 const void *value, size_t size, int flags)
20510f2f
JM
541{
542 if (unlikely(IS_PRIVATE(dentry->d_inode)))
543 return 0;
544 return security_ops->inode_setxattr(dentry, name, value, size, flags);
545}
546
8f0cfa52
DH
547void security_inode_post_setxattr(struct dentry *dentry, const char *name,
548 const void *value, size_t size, int flags)
20510f2f
JM
549{
550 if (unlikely(IS_PRIVATE(dentry->d_inode)))
551 return;
552 security_ops->inode_post_setxattr(dentry, name, value, size, flags);
553}
554
8f0cfa52 555int security_inode_getxattr(struct dentry *dentry, const char *name)
20510f2f
JM
556{
557 if (unlikely(IS_PRIVATE(dentry->d_inode)))
558 return 0;
559 return security_ops->inode_getxattr(dentry, name);
560}
561
562int security_inode_listxattr(struct dentry *dentry)
563{
564 if (unlikely(IS_PRIVATE(dentry->d_inode)))
565 return 0;
566 return security_ops->inode_listxattr(dentry);
567}
568
8f0cfa52 569int security_inode_removexattr(struct dentry *dentry, const char *name)
20510f2f
JM
570{
571 if (unlikely(IS_PRIVATE(dentry->d_inode)))
572 return 0;
573 return security_ops->inode_removexattr(dentry, name);
574}
575
b5376771
SH
576int security_inode_need_killpriv(struct dentry *dentry)
577{
578 return security_ops->inode_need_killpriv(dentry);
579}
580
581int security_inode_killpriv(struct dentry *dentry)
582{
583 return security_ops->inode_killpriv(dentry);
584}
585
42492594 586int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
20510f2f
JM
587{
588 if (unlikely(IS_PRIVATE(inode)))
8d952504 589 return -EOPNOTSUPP;
42492594 590 return security_ops->inode_getsecurity(inode, name, buffer, alloc);
20510f2f
JM
591}
592
593int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
594{
595 if (unlikely(IS_PRIVATE(inode)))
8d952504 596 return -EOPNOTSUPP;
20510f2f
JM
597 return security_ops->inode_setsecurity(inode, name, value, size, flags);
598}
599
600int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
601{
602 if (unlikely(IS_PRIVATE(inode)))
603 return 0;
604 return security_ops->inode_listsecurity(inode, buffer, buffer_size);
605}
606
8a076191
AD
607void security_inode_getsecid(const struct inode *inode, u32 *secid)
608{
609 security_ops->inode_getsecid(inode, secid);
610}
611
20510f2f
JM
612int security_file_permission(struct file *file, int mask)
613{
c4ec54b4
EP
614 int ret;
615
616 ret = security_ops->file_permission(file, mask);
617 if (ret)
618 return ret;
619
620 return fsnotify_perm(file, mask);
20510f2f
JM
621}
622
623int security_file_alloc(struct file *file)
624{
625 return security_ops->file_alloc_security(file);
626}
627
628void security_file_free(struct file *file)
629{
630 security_ops->file_free_security(file);
631}
632
633int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
634{
635 return security_ops->file_ioctl(file, cmd, arg);
636}
637
638int security_file_mmap(struct file *file, unsigned long reqprot,
639 unsigned long prot, unsigned long flags,
640 unsigned long addr, unsigned long addr_only)
641{
6c21a7fb
MZ
642 int ret;
643
644 ret = security_ops->file_mmap(file, reqprot, prot, flags, addr, addr_only);
645 if (ret)
646 return ret;
647 return ima_file_mmap(file, prot);
20510f2f
JM
648}
649
650int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
651 unsigned long prot)
652{
653 return security_ops->file_mprotect(vma, reqprot, prot);
654}
655
656int security_file_lock(struct file *file, unsigned int cmd)
657{
658 return security_ops->file_lock(file, cmd);
659}
660
661int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
662{
663 return security_ops->file_fcntl(file, cmd, arg);
664}
665
666int security_file_set_fowner(struct file *file)
667{
668 return security_ops->file_set_fowner(file);
669}
670
671int security_file_send_sigiotask(struct task_struct *tsk,
672 struct fown_struct *fown, int sig)
673{
674 return security_ops->file_send_sigiotask(tsk, fown, sig);
675}
676
677int security_file_receive(struct file *file)
678{
679 return security_ops->file_receive(file);
680}
681
745ca247 682int security_dentry_open(struct file *file, const struct cred *cred)
20510f2f 683{
c4ec54b4
EP
684 int ret;
685
686 ret = security_ops->dentry_open(file, cred);
687 if (ret)
688 return ret;
689
690 return fsnotify_perm(file, MAY_OPEN);
20510f2f
JM
691}
692
693int security_task_create(unsigned long clone_flags)
694{
695 return security_ops->task_create(clone_flags);
696}
697
ee18d64c
DH
698int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
699{
700 return security_ops->cred_alloc_blank(cred, gfp);
701}
702
d84f4f99 703void security_cred_free(struct cred *cred)
20510f2f 704{
d84f4f99 705 security_ops->cred_free(cred);
20510f2f
JM
706}
707
d84f4f99 708int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
20510f2f 709{
d84f4f99
DH
710 return security_ops->cred_prepare(new, old, gfp);
711}
712
ee18d64c
DH
713void security_transfer_creds(struct cred *new, const struct cred *old)
714{
715 security_ops->cred_transfer(new, old);
716}
717
3a3b7ce9
DH
718int security_kernel_act_as(struct cred *new, u32 secid)
719{
720 return security_ops->kernel_act_as(new, secid);
721}
722
723int security_kernel_create_files_as(struct cred *new, struct inode *inode)
724{
725 return security_ops->kernel_create_files_as(new, inode);
726}
727
dd8dbf2e 728int security_kernel_module_request(char *kmod_name)
9188499c 729{
dd8dbf2e 730 return security_ops->kernel_module_request(kmod_name);
9188499c
EP
731}
732
d84f4f99
DH
733int security_task_fix_setuid(struct cred *new, const struct cred *old,
734 int flags)
20510f2f 735{
d84f4f99 736 return security_ops->task_fix_setuid(new, old, flags);
20510f2f
JM
737}
738
20510f2f
JM
739int security_task_setpgid(struct task_struct *p, pid_t pgid)
740{
741 return security_ops->task_setpgid(p, pgid);
742}
743
744int security_task_getpgid(struct task_struct *p)
745{
746 return security_ops->task_getpgid(p);
747}
748
749int security_task_getsid(struct task_struct *p)
750{
751 return security_ops->task_getsid(p);
752}
753
754void security_task_getsecid(struct task_struct *p, u32 *secid)
755{
756 security_ops->task_getsecid(p, secid);
757}
758EXPORT_SYMBOL(security_task_getsecid);
759
20510f2f
JM
760int security_task_setnice(struct task_struct *p, int nice)
761{
762 return security_ops->task_setnice(p, nice);
763}
764
765int security_task_setioprio(struct task_struct *p, int ioprio)
766{
767 return security_ops->task_setioprio(p, ioprio);
768}
769
770int security_task_getioprio(struct task_struct *p)
771{
772 return security_ops->task_getioprio(p);
773}
774
8fd00b4d
JS
775int security_task_setrlimit(struct task_struct *p, unsigned int resource,
776 struct rlimit *new_rlim)
20510f2f 777{
8fd00b4d 778 return security_ops->task_setrlimit(p, resource, new_rlim);
20510f2f
JM
779}
780
781int security_task_setscheduler(struct task_struct *p,
782 int policy, struct sched_param *lp)
783{
784 return security_ops->task_setscheduler(p, policy, lp);
785}
786
787int security_task_getscheduler(struct task_struct *p)
788{
789 return security_ops->task_getscheduler(p);
790}
791
792int security_task_movememory(struct task_struct *p)
793{
794 return security_ops->task_movememory(p);
795}
796
797int security_task_kill(struct task_struct *p, struct siginfo *info,
798 int sig, u32 secid)
799{
800 return security_ops->task_kill(p, info, sig, secid);
801}
802
803int security_task_wait(struct task_struct *p)
804{
805 return security_ops->task_wait(p);
806}
807
808int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
d84f4f99 809 unsigned long arg4, unsigned long arg5)
20510f2f 810{
d84f4f99 811 return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
20510f2f
JM
812}
813
814void security_task_to_inode(struct task_struct *p, struct inode *inode)
815{
816 security_ops->task_to_inode(p, inode);
817}
818
819int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
820{
821 return security_ops->ipc_permission(ipcp, flag);
822}
823
8a076191
AD
824void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
825{
826 security_ops->ipc_getsecid(ipcp, secid);
827}
828
20510f2f
JM
829int security_msg_msg_alloc(struct msg_msg *msg)
830{
831 return security_ops->msg_msg_alloc_security(msg);
832}
833
834void security_msg_msg_free(struct msg_msg *msg)
835{
836 security_ops->msg_msg_free_security(msg);
837}
838
839int security_msg_queue_alloc(struct msg_queue *msq)
840{
841 return security_ops->msg_queue_alloc_security(msq);
842}
843
844void security_msg_queue_free(struct msg_queue *msq)
845{
846 security_ops->msg_queue_free_security(msq);
847}
848
849int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
850{
851 return security_ops->msg_queue_associate(msq, msqflg);
852}
853
854int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
855{
856 return security_ops->msg_queue_msgctl(msq, cmd);
857}
858
859int security_msg_queue_msgsnd(struct msg_queue *msq,
860 struct msg_msg *msg, int msqflg)
861{
862 return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
863}
864
865int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
866 struct task_struct *target, long type, int mode)
867{
868 return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
869}
870
871int security_shm_alloc(struct shmid_kernel *shp)
872{
873 return security_ops->shm_alloc_security(shp);
874}
875
876void security_shm_free(struct shmid_kernel *shp)
877{
878 security_ops->shm_free_security(shp);
879}
880
881int security_shm_associate(struct shmid_kernel *shp, int shmflg)
882{
883 return security_ops->shm_associate(shp, shmflg);
884}
885
886int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
887{
888 return security_ops->shm_shmctl(shp, cmd);
889}
890
891int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
892{
893 return security_ops->shm_shmat(shp, shmaddr, shmflg);
894}
895
896int security_sem_alloc(struct sem_array *sma)
897{
898 return security_ops->sem_alloc_security(sma);
899}
900
901void security_sem_free(struct sem_array *sma)
902{
903 security_ops->sem_free_security(sma);
904}
905
906int security_sem_associate(struct sem_array *sma, int semflg)
907{
908 return security_ops->sem_associate(sma, semflg);
909}
910
911int security_sem_semctl(struct sem_array *sma, int cmd)
912{
913 return security_ops->sem_semctl(sma, cmd);
914}
915
916int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
917 unsigned nsops, int alter)
918{
919 return security_ops->sem_semop(sma, sops, nsops, alter);
920}
921
922void security_d_instantiate(struct dentry *dentry, struct inode *inode)
923{
924 if (unlikely(inode && IS_PRIVATE(inode)))
925 return;
926 security_ops->d_instantiate(dentry, inode);
927}
928EXPORT_SYMBOL(security_d_instantiate);
929
930int security_getprocattr(struct task_struct *p, char *name, char **value)
931{
932 return security_ops->getprocattr(p, name, value);
933}
934
935int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
936{
937 return security_ops->setprocattr(p, name, value, size);
938}
939
940int security_netlink_send(struct sock *sk, struct sk_buff *skb)
941{
942 return security_ops->netlink_send(sk, skb);
943}
20510f2f
JM
944
945int security_netlink_recv(struct sk_buff *skb, int cap)
946{
947 return security_ops->netlink_recv(skb, cap);
948}
949EXPORT_SYMBOL(security_netlink_recv);
950
951int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
952{
953 return security_ops->secid_to_secctx(secid, secdata, seclen);
954}
955EXPORT_SYMBOL(security_secid_to_secctx);
956
7bf570dc 957int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
63cb3449
DH
958{
959 return security_ops->secctx_to_secid(secdata, seclen, secid);
960}
961EXPORT_SYMBOL(security_secctx_to_secid);
962
20510f2f
JM
963void security_release_secctx(char *secdata, u32 seclen)
964{
65fc7668 965 security_ops->release_secctx(secdata, seclen);
20510f2f
JM
966}
967EXPORT_SYMBOL(security_release_secctx);
968
1ee65e37
DQ
969int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
970{
971 return security_ops->inode_notifysecctx(inode, ctx, ctxlen);
972}
973EXPORT_SYMBOL(security_inode_notifysecctx);
974
975int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
976{
977 return security_ops->inode_setsecctx(dentry, ctx, ctxlen);
978}
979EXPORT_SYMBOL(security_inode_setsecctx);
980
981int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
982{
983 return security_ops->inode_getsecctx(inode, ctx, ctxlen);
984}
985EXPORT_SYMBOL(security_inode_getsecctx);
986
20510f2f
JM
987#ifdef CONFIG_SECURITY_NETWORK
988
989int security_unix_stream_connect(struct socket *sock, struct socket *other,
990 struct sock *newsk)
991{
992 return security_ops->unix_stream_connect(sock, other, newsk);
993}
994EXPORT_SYMBOL(security_unix_stream_connect);
995
996int security_unix_may_send(struct socket *sock, struct socket *other)
997{
998 return security_ops->unix_may_send(sock, other);
999}
1000EXPORT_SYMBOL(security_unix_may_send);
1001
1002int security_socket_create(int family, int type, int protocol, int kern)
1003{
1004 return security_ops->socket_create(family, type, protocol, kern);
1005}
1006
1007int security_socket_post_create(struct socket *sock, int family,
1008 int type, int protocol, int kern)
1009{
1010 return security_ops->socket_post_create(sock, family, type,
1011 protocol, kern);
1012}
1013
1014int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
1015{
1016 return security_ops->socket_bind(sock, address, addrlen);
1017}
1018
1019int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
1020{
1021 return security_ops->socket_connect(sock, address, addrlen);
1022}
1023
1024int security_socket_listen(struct socket *sock, int backlog)
1025{
1026 return security_ops->socket_listen(sock, backlog);
1027}
1028
1029int security_socket_accept(struct socket *sock, struct socket *newsock)
1030{
1031 return security_ops->socket_accept(sock, newsock);
1032}
1033
20510f2f
JM
1034int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1035{
1036 return security_ops->socket_sendmsg(sock, msg, size);
1037}
1038
1039int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1040 int size, int flags)
1041{
1042 return security_ops->socket_recvmsg(sock, msg, size, flags);
1043}
1044
1045int security_socket_getsockname(struct socket *sock)
1046{
1047 return security_ops->socket_getsockname(sock);
1048}
1049
1050int security_socket_getpeername(struct socket *sock)
1051{
1052 return security_ops->socket_getpeername(sock);
1053}
1054
1055int security_socket_getsockopt(struct socket *sock, int level, int optname)
1056{
1057 return security_ops->socket_getsockopt(sock, level, optname);
1058}
1059
1060int security_socket_setsockopt(struct socket *sock, int level, int optname)
1061{
1062 return security_ops->socket_setsockopt(sock, level, optname);
1063}
1064
1065int security_socket_shutdown(struct socket *sock, int how)
1066{
1067 return security_ops->socket_shutdown(sock, how);
1068}
1069
1070int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1071{
1072 return security_ops->socket_sock_rcv_skb(sk, skb);
1073}
1074EXPORT_SYMBOL(security_sock_rcv_skb);
1075
1076int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1077 int __user *optlen, unsigned len)
1078{
1079 return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
1080}
1081
1082int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1083{
1084 return security_ops->socket_getpeersec_dgram(sock, skb, secid);
1085}
1086EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1087
1088int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1089{
1090 return security_ops->sk_alloc_security(sk, family, priority);
1091}
1092
1093void security_sk_free(struct sock *sk)
1094{
65fc7668 1095 security_ops->sk_free_security(sk);
20510f2f
JM
1096}
1097
1098void security_sk_clone(const struct sock *sk, struct sock *newsk)
1099{
65fc7668 1100 security_ops->sk_clone_security(sk, newsk);
20510f2f
JM
1101}
1102
1103void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1104{
1105 security_ops->sk_getsecid(sk, &fl->secid);
1106}
1107EXPORT_SYMBOL(security_sk_classify_flow);
1108
1109void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1110{
1111 security_ops->req_classify_flow(req, fl);
1112}
1113EXPORT_SYMBOL(security_req_classify_flow);
1114
1115void security_sock_graft(struct sock *sk, struct socket *parent)
1116{
1117 security_ops->sock_graft(sk, parent);
1118}
1119EXPORT_SYMBOL(security_sock_graft);
1120
1121int security_inet_conn_request(struct sock *sk,
1122 struct sk_buff *skb, struct request_sock *req)
1123{
1124 return security_ops->inet_conn_request(sk, skb, req);
1125}
1126EXPORT_SYMBOL(security_inet_conn_request);
1127
1128void security_inet_csk_clone(struct sock *newsk,
1129 const struct request_sock *req)
1130{
1131 security_ops->inet_csk_clone(newsk, req);
1132}
1133
1134void security_inet_conn_established(struct sock *sk,
1135 struct sk_buff *skb)
1136{
1137 security_ops->inet_conn_established(sk, skb);
1138}
1139
2b980dbd
PM
1140int security_tun_dev_create(void)
1141{
1142 return security_ops->tun_dev_create();
1143}
1144EXPORT_SYMBOL(security_tun_dev_create);
1145
1146void security_tun_dev_post_create(struct sock *sk)
1147{
1148 return security_ops->tun_dev_post_create(sk);
1149}
1150EXPORT_SYMBOL(security_tun_dev_post_create);
1151
1152int security_tun_dev_attach(struct sock *sk)
1153{
1154 return security_ops->tun_dev_attach(sk);
1155}
1156EXPORT_SYMBOL(security_tun_dev_attach);
1157
20510f2f
JM
1158#endif /* CONFIG_SECURITY_NETWORK */
1159
1160#ifdef CONFIG_SECURITY_NETWORK_XFRM
1161
03e1ad7b 1162int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
20510f2f 1163{
03e1ad7b 1164 return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx);
20510f2f
JM
1165}
1166EXPORT_SYMBOL(security_xfrm_policy_alloc);
1167
03e1ad7b
PM
1168int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1169 struct xfrm_sec_ctx **new_ctxp)
20510f2f 1170{
03e1ad7b 1171 return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
20510f2f
JM
1172}
1173
03e1ad7b 1174void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
20510f2f 1175{
03e1ad7b 1176 security_ops->xfrm_policy_free_security(ctx);
20510f2f
JM
1177}
1178EXPORT_SYMBOL(security_xfrm_policy_free);
1179
03e1ad7b 1180int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
20510f2f 1181{
03e1ad7b 1182 return security_ops->xfrm_policy_delete_security(ctx);
20510f2f
JM
1183}
1184
1185int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
1186{
1187 return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
1188}
1189EXPORT_SYMBOL(security_xfrm_state_alloc);
1190
1191int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1192 struct xfrm_sec_ctx *polsec, u32 secid)
1193{
1194 if (!polsec)
1195 return 0;
1196 /*
1197 * We want the context to be taken from secid which is usually
1198 * from the sock.
1199 */
1200 return security_ops->xfrm_state_alloc_security(x, NULL, secid);
1201}
1202
1203int security_xfrm_state_delete(struct xfrm_state *x)
1204{
1205 return security_ops->xfrm_state_delete_security(x);
1206}
1207EXPORT_SYMBOL(security_xfrm_state_delete);
1208
1209void security_xfrm_state_free(struct xfrm_state *x)
1210{
1211 security_ops->xfrm_state_free_security(x);
1212}
1213
03e1ad7b 1214int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
20510f2f 1215{
03e1ad7b 1216 return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
20510f2f
JM
1217}
1218
1219int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1220 struct xfrm_policy *xp, struct flowi *fl)
1221{
1222 return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
1223}
1224
1225int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1226{
1227 return security_ops->xfrm_decode_session(skb, secid, 1);
1228}
1229
1230void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1231{
1232 int rc = security_ops->xfrm_decode_session(skb, &fl->secid, 0);
1233
1234 BUG_ON(rc);
1235}
1236EXPORT_SYMBOL(security_skb_classify_flow);
1237
1238#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1239
1240#ifdef CONFIG_KEYS
1241
d84f4f99
DH
1242int security_key_alloc(struct key *key, const struct cred *cred,
1243 unsigned long flags)
20510f2f 1244{
d84f4f99 1245 return security_ops->key_alloc(key, cred, flags);
20510f2f
JM
1246}
1247
1248void security_key_free(struct key *key)
1249{
1250 security_ops->key_free(key);
1251}
1252
1253int security_key_permission(key_ref_t key_ref,
d84f4f99 1254 const struct cred *cred, key_perm_t perm)
20510f2f 1255{
d84f4f99 1256 return security_ops->key_permission(key_ref, cred, perm);
20510f2f
JM
1257}
1258
70a5bb72
DH
1259int security_key_getsecurity(struct key *key, char **_buffer)
1260{
1261 return security_ops->key_getsecurity(key, _buffer);
1262}
1263
20510f2f 1264#endif /* CONFIG_KEYS */
03d37d25
AD
1265
1266#ifdef CONFIG_AUDIT
1267
1268int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1269{
1270 return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
1271}
1272
1273int security_audit_rule_known(struct audit_krule *krule)
1274{
1275 return security_ops->audit_rule_known(krule);
1276}
1277
1278void security_audit_rule_free(void *lsmrule)
1279{
1280 security_ops->audit_rule_free(lsmrule);
1281}
1282
1283int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1284 struct audit_context *actx)
1285{
1286 return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
1287}
1288
1289#endif /* CONFIG_AUDIT */