summaryrefslogtreecommitdiff
path: root/security/security.c
blob: db3b750da353c18391958d936f22c97ecb95936d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
/*
 * Security plug functions
 *
 * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
 * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com>
 * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
 *
 *	This program is free software; you can redistribute it and/or modify
 *	it under the terms of the GNU General Public License as published by
 *	the Free Software Foundation; either version 2 of the License, or
 *	(at your option) any later version.
 */

#include <linux/capability.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/security.h>
#include <linux/ima.h>

/* Boot-time LSM user choice */
static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
	CONFIG_DEFAULT_SECURITY;

/* things that live in capability.c */
extern void __init security_fixup_ops(struct security_operations *ops);

static struct security_operations *security_ops;
static struct security_operations default_security_ops = {
	.name	= "default",
};

static inline int __init verify(struct security_operations *ops)
{
	/* verify the security_operations structure exists */
	if (!ops)
		return -EINVAL;
	security_fixup_ops(ops);
	return 0;
}

static void __init do_security_initcalls(void)
{
	initcall_t *call;
	call = __security_initcall_start;
	while (call < __security_initcall_end) {
		(*call) ();
		call++;
	}
}

/**
 * security_init - initializes the security framework
 *
 * This should be called early in the kernel initialization sequence.
 */
int __init security_init(void)
{
	printk(KERN_INFO "Security Framework initialized\n");

	security_fixup_ops(&default_security_ops);
	security_ops = &default_security_ops;
	do_security_initcalls();

	return 0;
}

void reset_security_ops(void)
{
	security_ops = &default_security_ops;
}

/* Save user chosen LSM */
static int __init choose_lsm(char *str)
{
	strncpy(chosen_lsm, str, SECURITY_NAME_MAX);
	return 1;
}
__setup("security=", choose_lsm);

/**
 * security_module_enable - Load given security module on boot ?
 * @ops: a pointer to the struct security_operations that is to be checked.
 *
 * Each LSM must pass this method before registering its own operations
 * to avoid security registration races. This method may also be used
 * to check if your LSM is currently loaded during kernel initialization.
 *
 * Return true if:
 *	-The passed LSM is the one chosen by user at boot time,
 *	-or the passed LSM is configured as the default and the user did not
 *	 choose an alternate LSM at boot time.
 * Otherwise, return false.
 */
int __init security_module_enable(struct security_operations *ops)
{
	return !strcmp(ops->name, chosen_lsm);
}

/**
 * register_security - registers a security framework with the kernel
 * @ops: a pointer to the struct security_options that is to be registered
 *
 * This function allows a security module to register itself with the
 * kernel security subsystem.  Some rudimentary checking is done on the @ops
 * value passed to this function. You'll need to check first if your LSM
 * is allowed to register its @ops by calling security_module_enable(@ops).
 *
 * If there is already a security module registered with the kernel,
 * an error will be returned.  Otherwise %0 is returned on success.
 */
int __init register_security(struct security_operations *ops)
{
	if (verify(ops)) {
		printk(KERN_DEBUG "%s could not verify "
		       "security_operations structure.\n", __func__);
		return -EINVAL;
	}

	if (security_ops != &default_security_ops)
		return -EAGAIN;

	security_ops = ops;

	return 0;
}

/* Security operations */

int security_ptrace_access_check(struct task_struct *child, unsigned int mode)
{
	return security_ops->ptrace_access_check(child, mode);
}

int security_ptrace_traceme(struct task_struct *parent)
{
	return security_ops->ptrace_traceme(parent);
}

int security_capget(struct task_struct *target,
		     kernel_cap_t *effective,
		     kernel_cap_t *inheritable,
		     kernel_cap_t *permitted)
{
	return security_ops->capget(target, effective, inheritable, permitted);
}

int security_capset(struct cred *new, const struct cred *old,
		    const kernel_cap_t *effective,
		    const kernel_cap_t *inheritable,
		    const kernel_cap_t *permitted)
{
	return security_ops->capset(new, old,
				    effective, inheritable, permitted);
}

int security_capable(struct user_namespace *ns, const struct cred *cred,
		     int cap)
{
	return security_ops->capable(current, cred, ns, cap,
				     SECURITY_CAP_AUDIT);
}

int security_real_capable(struct task_struct *tsk, struct user_namespace *ns,
			  int cap)
{
	const struct cred *cred;
	int ret;

	cred = get_task_cred(tsk);
	ret = security_ops->capable(tsk, cred, ns, cap, SECURITY_CAP_AUDIT);
	put_cred(cred);
	return ret;
}

int security_real_capable_noaudit(struct task_struct *tsk,
				  struct user_namespace *ns, int cap)
{
	const struct cred *cred;
	int ret;

	cred = get_task_cred(tsk);
	ret = security_ops->capable(tsk, cred, ns, cap, SECURITY_CAP_NOAUDIT);
	put_cred(cred);
	return ret;
}

int security_quotactl(int cmds, int type, int id, struct super_block *sb)
{
	return security_ops->quotactl(cmds, type, id, sb);
}

int security_quota_on(struct dentry *dentry)
{
	return security_ops->quota_on(dentry);
}

int security_syslog(int type)
{
	return security_ops->syslog(type);
}

int security_settime(const struct timespec *ts, const struct timezone *tz)
{
	return security_ops->settime(ts, tz);
}

int security_vm_enough_memory(long pages)
{
	WARN_ON(current->mm == NULL);
	return security_ops->vm_enough_memory(current->mm, pages);
}

int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
{
	WARN_ON(mm == NULL);
	return security_ops->vm_enough_memory(mm, pages);
}

int security_vm_enough_memory_kern(long pages)
{
	/* If current->mm is a kernel thread then we will pass NULL,
	   for this specific case that is fine */
	return security_ops->vm_enough_memory(current->mm, pages);
}

int security_bprm_set_creds(struct linux_binprm *bprm)
{
	return security_ops->bprm_set_creds(bprm);
}

int security_bprm_check(struct linux_binprm *bprm)
{
	int ret;

	ret = security_ops->bprm_check_security(bprm);
	if (ret)
		return ret;
	return ima_bprm_check(bprm);
}

void security_bprm_committing_creds(struct linux_binprm *bprm)
{
	security_ops->bprm_committing_creds(bprm);
}

void security_bprm_committed_creds(struct linux_binprm *bprm)
{
	security_ops->bprm_committed_creds(bprm);
}

int security_bprm_secureexec(struct linux_binprm *bprm)
{
	return security_ops->bprm_secureexec(bprm);
}

int security_sb_alloc(struct super_block *sb)
{
	return security_ops->sb_alloc_security(sb);
}

void security_sb_free(struct super_block *sb)
{
	security_ops->sb_free_security(sb);
}

int security_sb_copy_data(char *orig, char *copy)
{
	return security_ops->sb_copy_data(orig, copy);
}
EXPORT_SYMBOL(security_sb_copy_data);

int security_sb_remount(struct super_block *sb, void *data)
{
	return security_ops->sb_remount(sb, data);
}

int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
{
	return security_ops->sb_kern_mount(sb, flags, data);
}

int security_sb_show_options(struct seq_file *m, struct super_block *sb)
{
	return security_ops->sb_show_options(m, sb);
}

int security_sb_statfs(struct dentry *dentry)
{
	return security_ops->sb_statfs(dentry);
}

int security_sb_mount(char *dev_name, struct path *path,
                       char *type, unsigned long flags, void *data)
{
	return security_ops->sb_mount(dev_name, path, type, flags, data);
}

int security_sb_umount(struct vfsmount *mnt, int flags)
{
	return security_ops->sb_umount(mnt, flags);
}

int security_sb_pivotroot(struct path *old_path, struct path *new_path)
{
	return security_ops->sb_pivotroot(old_path, new_path);
}

int security_sb_set_mnt_opts(struct super_block *sb,
				struct security_mnt_opts *opts)
{
	return security_ops->sb_set_mnt_opts(sb, opts);
}
EXPORT_SYMBOL(security_sb_set_mnt_opts);

void security_sb_clone_mnt_opts(const struct super_block *oldsb,
				struct super_block *newsb)
{
	security_ops->sb_clone_mnt_opts(oldsb, newsb);
}
EXPORT_SYMBOL(security_sb_clone_mnt_opts);

int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
{
	return security_ops->sb_parse_opts_str(options, opts);
}
EXPORT_SYMBOL(security_sb_parse_opts_str);

int security_inode_alloc(struct inode *inode)
{
	inode->i_security = NULL;
	return security_ops->inode_alloc_security(inode);
}

void security_inode_free(struct inode *inode)
{
	ima_inode_free(inode);
	security_ops->inode_free_security(inode);
}

int security_inode_init_security(struct inode *inode, struct inode *dir,
				 const struct qstr *qstr, char **name,
				 void **value, size_t *len)
{
	if (unlikely(IS_PRIVATE(inode)))
		return -EOPNOTSUPP;
	return security_ops->inode_init_security(inode, dir, qstr, name, value,
						 len);
}
EXPORT_SYMBOL(security_inode_init_security);

#ifdef CONFIG_SECURITY_PATH
int security_path_mknod(struct path *dir, struct dentry *dentry, int mode,
			unsigned int dev)
{
	if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
		return 0;
	return security_ops->path_mknod(dir, dentry, mode, dev);
}
EXPORT_SYMBOL(security_path_mknod);

int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode)
{
	if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
		return 0;
	return security_ops->path_mkdir(dir, dentry, mode);
}
EXPORT_SYMBOL(security_path_mkdir);

int security_path_rmdir(struct path *dir, struct dentry *dentry)
{
	if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
		return 0;
	return security_ops->path_rmdir(dir, dentry);
}

int security_path_unlink(struct path *dir, struct dentry *dentry)
{
	if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
		return 0;
	return security_ops->path_unlink(dir, dentry);
}
EXPORT_SYMBOL(security_path_unlink);

int security_path_symlink(struct path *dir, struct dentry *dentry,
			  const char *old_name)
{
	if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
		return 0;
	return security_ops->path_symlink(dir, dentry, old_name);
}

int security_path_link(struct dentry *old_dentry, struct path *new_dir,
		       struct dentry *new_dentry)
{
	if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
		return 0;
	return security_ops->path_link(old_dentry, new_dir, new_dentry);
}

int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
			 struct path *new_dir, struct dentry *new_dentry)
{
	if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
		     (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
		return 0;
	return security_ops->path_rename(old_dir, old_dentry, new_dir,
					 new_dentry);
}
EXPORT_SYMBOL(security_path_rename);

int security_path_truncate(struct path *path)
{
	if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
		return 0;
	return security_ops->path_truncate(path);
}

int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
			mode_t mode)
{
	if (unlikely(IS_PRIVATE(dentry->d_inode)))
		return 0;
	return security_ops->path_chmod(dentry, mnt, mode);
}

int security_path_chown(struct path *path, uid_t uid, gid_t gid)
{
	if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
		return 0;
	return security_ops->path_chown(path, uid, gid);
}

int security_path_chroot(struct path *path)
{
	return security_ops->path_chroot(path);
}
#endif

int security_inode_create(struct inode *dir, struct dentry *dentry, int mode)
{
	if (unlikely(IS_PRIVATE(dir)))
		return 0;
	return security_ops->inode_create(dir, dentry, mode);
}
EXPORT_SYMBOL_GPL(security_inode_create);

int security_inode_link(struct dentry *old_dentry, struct inode *dir,
			 struct dentry *new_dentry)
{
	if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
		return 0;
	return security_ops->inode_link(old_dentry, dir, new_dentry);
}

int security_inode_unlink(struct inode *dir, struct dentry *dentry)
{
	if (unlikely(IS_PRIVATE(dentry->d_inode)))
		return 0;
	return security_ops->inode_unlink(dir, dentry);
}

int security_inode_symlink(struct inode *dir, struct dentry *dentry,
			    const char *old_name)
{
	if (unlikely(IS_PRIVATE(dir)))
		return 0;
	return security_ops->inode_symlink(dir, dentry, old_name);
}

int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode)
{
	if (unlikely(IS_PRIVATE(dir)))
		return 0;
	return security_ops->inode_mkdir(dir, dentry, mode);
}
EXPORT_SYMBOL_GPL(security_inode_mkdir);

int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
{
	if (unlikely(IS_PRIVATE(dentry->d_inode)))
		return 0;
	return security_ops->inode_rmdir(dir, dentry);
}

int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
{
	if (unlikely(IS_PRIVATE(dir)))
		return 0;
	return security_ops->inode_mknod(dir, dentry, mode, dev);
}

int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
			   struct inode *new_dir, struct dentry *new_dentry)
{
        if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
            (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
		return 0;
	return security_ops->inode_rename(old_dir, old_dentry,
					   new_dir, new_dentry);
}

int security_inode_readlink(struct dentry *dentry)
{
	if (unlikely(IS_PRIVATE(dentry->d_inode)))
		return 0;
	return security_ops->inode_readlink(dentry);
}

int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
{
	if (unlikely(IS_PRIVATE(dentry->d_inode)))
		return 0;
	return security_ops->inode_follow_link(dentry, nd);
}

int security_inode_permission(struct inode *inode, int mask)
{
	if (unlikely(IS_PRIVATE(inode)))
		return 0;
	return security_ops->inode_permission(inode, mask);
}

int security_inode_exec_permission(struct inode *inode, unsigned int flags)
{
	int mask = MAY_EXEC;
	if (unlikely(IS_PRIVATE(inode)))
		return 0;
	if (flags)
		mask |= MAY_NOT_BLOCK;
	return security_ops->inode_permission(inode, mask);
}

int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
{
	if (unlikely(IS_PRIVATE(dentry->d_inode)))
		return 0;
	return security_ops->inode_setattr(dentry, attr);
}
EXPORT_SYMBOL_GPL(security_inode_setattr);

int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
{
	if (unlikely(IS_PRIVATE(dentry->d_inode)))
		return 0;
	return security_ops->inode_getattr(mnt, dentry);
}

int security_inode_setxattr(struct dentry *dentry, const char *name,
			    const void *value, size_t size, int flags)
{
	if (unlikely(IS_PRIVATE(dentry->d_inode)))
		return 0;
	return security_ops->inode_setxattr(dentry, name, value, size, flags);
}

void security_inode_post_setxattr(struct dentry *dentry, const char *name,
				  const void *value, size_t size, int flags)
{
	if (unlikely(IS_PRIVATE(dentry->d_inode)))
		return;
	security_ops->inode_post_setxattr(dentry, name, value, size, flags);
}

int security_inode_getxattr(struct dentry *dentry, const char *name)
{
	if (unlikely(IS_PRIVATE(dentry->d_inode)))
		return 0;
	return security_ops->inode_getxattr(dentry, name);
}

int security_inode_listxattr(struct dentry *dentry)
{
	if (unlikely(IS_PRIVATE(dentry->d_inode)))
		return 0;
	return security_ops->inode_listxattr(dentry);
}

int security_inode_removexattr(struct dentry *dentry, const char *name)
{
	if (unlikely(IS_PRIVATE(dentry->d_inode)))
		return 0;
	return security_ops->inode_removexattr(dentry, name);
}

int security_inode_need_killpriv(struct dentry *dentry)
{
	return security_ops->inode_need_killpriv(dentry);
}

int security_inode_killpriv(struct dentry *dentry)
{
	return security_ops->inode_killpriv(dentry);
}

int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
{
	if (unlikely(IS_PRIVATE(inode)))
		return -EOPNOTSUPP;
	return security_ops->inode_getsecurity(inode, name, buffer, alloc);
}

int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
{
	if (unlikely(IS_PRIVATE(inode)))
		return -EOPNOTSUPP;
	return security_ops->inode_setsecurity(inode, name, value, size, flags);
}

int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
{
	if (unlikely(IS_PRIVATE(inode)))
		return 0;
	return security_ops->inode_listsecurity(inode, buffer, buffer_size);
}

void security_inode_getsecid(const struct inode *inode, u32 *secid)
{
	security_ops->inode_getsecid(inode, secid);
}

int security_file_permission(struct file *file, int mask)
{
	int ret;

	ret = security_ops->file_permission(file, mask);
	if (ret)
		return ret;

	return fsnotify_perm(file, mask);
}

int security_file_alloc(struct file *file)
{
	return security_ops->file_alloc_security(file);
}

void security_file_free(struct file *file)
{
	security_ops->file_free_security(file);
}

int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
	return security_ops->file_ioctl(file, cmd, arg);
}

int security_file_mmap(struct file *file, unsigned long reqprot,
			unsigned long prot, unsigned long flags,
			unsigned long addr, unsigned long addr_only)
{
	int ret;

	ret = security_ops->file_mmap(file, reqprot, prot, flags, addr, addr_only);
	if (ret)
		return ret;
	return ima_file_mmap(file, prot);
}

int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
			    unsigned long prot)
{
	return security_ops->file_mprotect(vma, reqprot, prot);
}

int security_file_lock(struct file *file, unsigned int cmd)
{
	return security_ops->file_lock(file, cmd);
}

int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
{
	return security_ops->file_fcntl(file, cmd, arg);
}

int security_file_set_fowner(struct file *file)
{
	return security_ops->file_set_fowner(file);
}

int security_file_send_sigiotask(struct task_struct *tsk,
				  struct fown_struct *fown, int sig)
{
	return security_ops->file_send_sigiotask(tsk, fown, sig);
}

int security_file_receive(struct file *file)
{
	return security_ops->file_receive(file);
}

int security_dentry_open(struct file *file, const struct cred *cred)
{
	int ret;

	ret = security_ops->dentry_open(file, cred);
	if (ret)
		return ret;

	return fsnotify_perm(file, MAY_OPEN);
}

int security_task_create(unsigned long clone_flags)
{
	return security_ops->task_create(clone_flags);
}

int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
{
	return security_ops->cred_alloc_blank(cred, gfp);
}

void security_cred_free(struct cred *cred)
{
	security_ops->cred_free(cred);
}

int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
{
	return security_ops->cred_prepare(new, old, gfp);
}

void security_transfer_creds(struct cred *new, const struct cred *old)
{
	security_ops->cred_transfer(new, old);
}

int security_kernel_act_as(struct cred *new, u32 secid)
{
	return security_ops->kernel_act_as(new, secid);
}

int security_kernel_create_files_as(struct cred *new, struct inode *inode)
{
	return security_ops->kernel_create_files_as(new, inode);
}

int security_kernel_module_request(char *kmod_name)
{
	return security_ops->kernel_module_request(kmod_name);
}

int security_task_fix_setuid(struct cred *new, const struct cred *old,
			     int flags)
{
	return security_ops->task_fix_setuid(new, old, flags);
}

int security_task_setpgid(struct task_struct *p, pid_t pgid)
{
	return security_ops->task_setpgid(p, pgid);
}

int security_task_getpgid(struct task_struct *p)
{
	return security_ops->task_getpgid(p);
}

int security_task_getsid(struct task_struct *p)
{
	return security_ops->task_getsid(p);
}

void security_task_getsecid(struct task_struct *p, u32 *secid)
{
	security_ops->task_getsecid(p, secid);
}
EXPORT_SYMBOL(security_task_getsecid);

int security_task_setnice(struct task_struct *p, int nice)
{
	return security_ops->task_setnice(p, nice);
}

int security_task_setioprio(struct task_struct *p, int ioprio)
{
	return security_ops->task_setioprio(p, ioprio);
}

int security_task_getioprio(struct task_struct *p)
{
	return security_ops->task_getioprio(p);
}

int security_task_setrlimit(struct task_struct *p, unsigned int resource,
		struct rlimit *new_rlim)
{
	return security_ops->task_setrlimit(p, resource, new_rlim);
}

int security_task_setscheduler(struct task_struct *p)
{
	return security_ops->task_setscheduler(p);
}

int security_task_getscheduler(struct task_struct *p)
{
	return security_ops->task_getscheduler(p);
}

int security_task_movememory(struct task_struct *p)
{
	return security_ops->task_movememory(p);
}

int security_task_kill(struct task_struct *p, struct siginfo *info,
			int sig, u32 secid)
{
	return security_ops->task_kill(p, info, sig, secid);
}

int security_task_wait(struct task_struct *p)
{
	return security_ops->task_wait(p);
}

int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
			 unsigned long arg4, unsigned long arg5)
{
	return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
}

void security_task_to_inode(struct task_struct *p, struct inode *inode)
{
	security_ops->task_to_inode(p, inode);
}

int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
{
	return security_ops->ipc_permission(ipcp, flag);
}

void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
{
	security_ops->ipc_getsecid(ipcp, secid);
}

int security_msg_msg_alloc(struct msg_msg *msg)
{
	return security_ops->msg_msg_alloc_security(msg);
}

void security_msg_msg_free(struct msg_msg *msg)
{
	security_ops->msg_msg_free_security(msg);
}

int security_msg_queue_alloc(struct msg_queue *msq)
{
	return security_ops->msg_queue_alloc_security(msq);
}

void security_msg_queue_free(struct msg_queue *msq)
{
	security_ops->msg_queue_free_security(msq);
}

int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
{
	return security_ops->msg_queue_associate(msq, msqflg);
}

int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
{
	return security_ops->msg_queue_msgctl(msq, cmd);
}

int security_msg_queue_msgsnd(struct msg_queue *msq,
			       struct msg_msg *msg, int msqflg)
{
	return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
}

int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
			       struct task_struct *target, long type, int mode)
{
	return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
}

int security_shm_alloc(struct shmid_kernel *shp)
{
	return security_ops->shm_alloc_security(shp);
}

void security_shm_free(struct shmid_kernel *shp)
{
	security_ops->shm_free_security(shp);
}

int security_shm_associate(struct shmid_kernel *shp, int shmflg)
{
	return security_ops->shm_associate(shp, shmflg);
}

int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
{
	return security_ops->shm_shmctl(shp, cmd);
}

int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
{
	return security_ops->shm_shmat(shp, shmaddr, shmflg);
}

int security_sem_alloc(struct sem_array *sma)
{
	return security_ops->sem_alloc_security(sma);
}

void security_sem_free(struct sem_array *sma)
{
	security_ops->sem_free_security(sma);
}

int security_sem_associate(struct sem_array *sma, int semflg)
{
	return security_ops->sem_associate(sma, semflg);
}

int security_sem_semctl(struct sem_array *sma, int cmd)
{
	return security_ops->sem_semctl(sma, cmd);
}

int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
			unsigned nsops, int alter)
{
	return security_ops->sem_semop(sma, sops, nsops, alter);
}

void security_d_instantiate(struct dentry *dentry, struct inode *inode)
{
	if (unlikely(inode && IS_PRIVATE(inode)))
		return;
	security_ops->d_instantiate(dentry, inode);
}
EXPORT_SYMBOL(security_d_instantiate);

int security_getprocattr(struct task_struct *p, char *name, char **value)
{
	return security_ops->getprocattr(p, name, value);
}

int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
{
	return security_ops->setprocattr(p, name, value, size);
}

int security_netlink_send(struct sock *sk, struct sk_buff *skb)
{
	return security_ops->netlink_send(sk, skb);
}

int security_netlink_recv(struct sk_buff *skb, int cap)
{
	return security_ops->netlink_recv(skb, cap);
}
EXPORT_SYMBOL(security_netlink_recv);

int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
{
	return security_ops->secid_to_secctx(secid, secdata, seclen);
}
EXPORT_SYMBOL(security_secid_to_secctx);

int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
{
	return security_ops->secctx_to_secid(secdata, seclen, secid);
}
EXPORT_SYMBOL(security_secctx_to_secid);

void security_release_secctx(char *secdata, u32 seclen)
{
	security_ops->release_secctx(secdata, seclen);
}
EXPORT_SYMBOL(security_release_secctx);

int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
{
	return security_ops->inode_notifysecctx(inode, ctx, ctxlen);
}
EXPORT_SYMBOL(security_inode_notifysecctx);

int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
{
	return security_ops->inode_setsecctx(dentry, ctx, ctxlen);
}
EXPORT_SYMBOL(security_inode_setsecctx);

int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
{
	return security_ops->inode_getsecctx(inode, ctx, ctxlen);
}
EXPORT_SYMBOL(security_inode_getsecctx);

#ifdef CONFIG_SECURITY_NETWORK

int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk)
{
	return security_ops->unix_stream_connect(sock, other, newsk);
}
EXPORT_SYMBOL(security_unix_stream_connect);

int security_unix_may_send(struct socket *sock,  struct socket *other)
{
	return security_ops->unix_may_send(sock, other);
}
EXPORT_SYMBOL(security_unix_may_send);

int security_socket_create(int family, int type, int protocol, int kern)
{
	return security_ops->socket_create(family, type, protocol, kern);
}

int security_socket_post_create(struct socket *sock, int family,
				int type, int protocol, int kern)
{
	return security_ops->socket_post_create(sock, family, type,
						protocol, kern);
}

int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
{
	return security_ops->socket_bind(sock, address, addrlen);
}

int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
{
	return security_ops->socket_connect(sock, address, addrlen);
}

int security_socket_listen(struct socket *sock, int backlog)
{
	return security_ops->socket_listen(sock, backlog);
}

int security_socket_accept(struct socket *sock, struct socket *newsock)
{
	return security_ops->socket_accept(sock, newsock);
}

int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
{
	return security_ops->socket_sendmsg(sock, msg, size);
}

int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
			    int size, int flags)
{
	return security_ops->socket_recvmsg(sock, msg, size, flags);
}

int security_socket_getsockname(struct socket *sock)
{
	return security_ops->socket_getsockname(sock);
}

int security_socket_getpeername(struct socket *sock)
{
	return security_ops->socket_getpeername(sock);
}

int security_socket_getsockopt(struct socket *sock, int level, int optname)
{
	return security_ops->socket_getsockopt(sock, level, optname);
}

int security_socket_setsockopt(struct socket *sock, int level, int optname)
{
	return security_ops->socket_setsockopt(sock, level, optname);
}

int security_socket_shutdown(struct socket *sock, int how)
{
	return security_ops->socket_shutdown(sock, how);
}

int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
{
	return security_ops->socket_sock_rcv_skb(sk, skb);
}
EXPORT_SYMBOL(security_sock_rcv_skb);

int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
				      int __user *optlen, unsigned len)
{
	return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
}

int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
{
	return security_ops->socket_getpeersec_dgram(sock, skb, secid);
}
EXPORT_SYMBOL(security_socket_getpeersec_dgram);

int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
{
	return security_ops->sk_alloc_security(sk, family, priority);
}

void security_sk_free(struct sock *sk)
{
	security_ops->sk_free_security(sk);
}

void security_sk_clone(const struct sock *sk, struct sock *newsk)
{
	security_ops->sk_clone_security(sk, newsk);
}

void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
{
	security_ops->sk_getsecid(sk, &fl->flowi_secid);
}
EXPORT_SYMBOL(security_sk_classify_flow);

void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
{
	security_ops->req_classify_flow(req, fl);
}
EXPORT_SYMBOL(security_req_classify_flow);

void security_sock_graft(struct sock *sk, struct socket *parent)
{
	security_ops->sock_graft(sk, parent);
}
EXPORT_SYMBOL(security_sock_graft);

int security_inet_conn_request(struct sock *sk,
			struct sk_buff *skb, struct request_sock *req)
{
	return security_ops->inet_conn_request(sk, skb, req);
}
EXPORT_SYMBOL(security_inet_conn_request);

void security_inet_csk_clone(struct sock *newsk,
			const struct request_sock *req)
{
	security_ops->inet_csk_clone(newsk, req);
}

void security_inet_conn_established(struct sock *sk,
			struct sk_buff *skb)
{
	security_ops->inet_conn_established(sk, skb);
}

int security_secmark_relabel_packet(u32 secid)
{
	return security_ops->secmark_relabel_packet(secid);
}
EXPORT_SYMBOL(security_secmark_relabel_packet);

void security_secmark_refcount_inc(void)
{
	security_ops->secmark_refcount_inc();
}
EXPORT_SYMBOL(security_secmark_refcount_inc);

void security_secmark_refcount_dec(void)
{
	security_ops->secmark_refcount_dec();
}
EXPORT_SYMBOL(security_secmark_refcount_dec);

int security_tun_dev_create(void)
{
	return security_ops->tun_dev_create();
}
EXPORT_SYMBOL(security_tun_dev_create);

void security_tun_dev_post_create(struct sock *sk)
{
	return security_ops->tun_dev_post_create(sk);
}
EXPORT_SYMBOL(security_tun_dev_post_create);

int security_tun_dev_attach(struct sock *sk)
{
	return security_ops->tun_dev_attach(sk);
}
EXPORT_SYMBOL(security_tun_dev_attach);

#endif	/* CONFIG_SECURITY_NETWORK */

#ifdef CONFIG_SECURITY_NETWORK_XFRM

int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
{
	return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx);
}
EXPORT_SYMBOL(security_xfrm_policy_alloc);

int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
			      struct xfrm_sec_ctx **new_ctxp)
{
	return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
}

void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
{
	security_ops->xfrm_policy_free_security(ctx);
}
EXPORT_SYMBOL(security_xfrm_policy_free);

int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
{
	return security_ops->xfrm_policy_delete_security(ctx);
}

int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
{
	return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
}
EXPORT_SYMBOL(security_xfrm_state_alloc);

int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
				      struct xfrm_sec_ctx *polsec, u32 secid)
{
	if (!polsec)
		return 0;
	/*
	 * We want the context to be taken from secid which is usually
	 * from the sock.
	 */
	return security_ops->xfrm_state_alloc_security(x, NULL, secid);
}

int security_xfrm_state_delete(struct xfrm_state *x)
{
	return security_ops->xfrm_state_delete_security(x);
}
EXPORT_SYMBOL(security_xfrm_state_delete);

void security_xfrm_state_free(struct xfrm_state *x)
{
	security_ops->xfrm_state_free_security(x);
}

int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
{
	return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
}

int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
				       struct xfrm_policy *xp,
				       const struct flowi *fl)
{
	return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
}

int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
{
	return security_ops->xfrm_decode_session(skb, secid, 1);
}

void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
{
	int rc = security_ops->xfrm_decode_session(skb, &fl->flowi_secid, 0);

	BUG_ON(rc);
}
EXPORT_SYMBOL(security_skb_classify_flow);

#endif	/* CONFIG_SECURITY_NETWORK_XFRM */

#ifdef CONFIG_KEYS

int security_key_alloc(struct key *key, const struct cred *cred,
		       unsigned long flags)
{
	return security_ops->key_alloc(key, cred, flags);
}

void security_key_free(struct key *key)
{
	security_ops->key_free(key);
}

int security_key_permission(key_ref_t key_ref,
			    const struct cred *cred, key_perm_t perm)
{
	return security_ops->key_permission(key_ref, cred, perm);
}

int security_key_getsecurity(struct key *key, char **_buffer)
{
	return security_ops->key_getsecurity(key, _buffer);
}

#endif	/* CONFIG_KEYS */

#ifdef CONFIG_AUDIT

int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
{
	return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
}

int security_audit_rule_known(struct audit_krule *krule)
{
	return security_ops->audit_rule_known(krule);
}

void security_audit_rule_free(void *lsmrule)
{
	security_ops->audit_rule_free(lsmrule);
}

int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
			      struct audit_context *actx)
{
	return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
}

#endif /* CONFIG_AUDIT */