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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/dcache.h>
16#include <linux/module.h>
17#include <linux/init.h>
18#include <linux/kernel.h>
19#include <linux/security.h>
20#include <linux/integrity.h>
21#include <linux/ima.h>
22#include <linux/evm.h>
23#include <linux/fsnotify.h>
24#include <linux/mman.h>
25#include <linux/mount.h>
26#include <linux/personality.h>
27#include <linux/backing-dev.h>
28#include <net/flow.h>
29
30#define MAX_LSM_EVM_XATTR 2
31
32/* Boot-time LSM user choice */
33static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
34 CONFIG_DEFAULT_SECURITY;
35
36static struct security_operations *security_ops;
37static struct security_operations default_security_ops = {
38 .name = "default",
39};
40
41static inline int __init verify(struct security_operations *ops)
42{
43 /* verify the security_operations structure exists */
44 if (!ops)
45 return -EINVAL;
46 security_fixup_ops(ops);
47 return 0;
48}
49
50static void __init do_security_initcalls(void)
51{
52 initcall_t *call;
53 call = __security_initcall_start;
54 while (call < __security_initcall_end) {
55 (*call) ();
56 call++;
57 }
58}
59
60/**
61 * security_init - initializes the security framework
62 *
63 * This should be called early in the kernel initialization sequence.
64 */
65int __init security_init(void)
66{
67 printk(KERN_INFO "Security Framework initialized\n");
68
69 security_fixup_ops(&default_security_ops);
70 security_ops = &default_security_ops;
71 do_security_initcalls();
72
73 return 0;
74}
75
76void reset_security_ops(void)
77{
78 security_ops = &default_security_ops;
79}
80
81/* Save user chosen LSM */
82static int __init choose_lsm(char *str)
83{
84 strncpy(chosen_lsm, str, SECURITY_NAME_MAX);
85 return 1;
86}
87__setup("security=", choose_lsm);
88
89/**
90 * security_module_enable - Load given security module on boot ?
91 * @ops: a pointer to the struct security_operations that is to be checked.
92 *
93 * Each LSM must pass this method before registering its own operations
94 * to avoid security registration races. This method may also be used
95 * to check if your LSM is currently loaded during kernel initialization.
96 *
97 * Return true if:
98 * -The passed LSM is the one chosen by user at boot time,
99 * -or the passed LSM is configured as the default and the user did not
100 * choose an alternate LSM at boot time.
101 * Otherwise, return false.
102 */
103int __init security_module_enable(struct security_operations *ops)
104{
105 return !strcmp(ops->name, chosen_lsm);
106}
107
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 *
112 * This function allows a security module to register itself with the
113 * kernel security subsystem. Some rudimentary checking is done on the @ops
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).
116 *
117 * If there is already a security module registered with the kernel,
118 * an error will be returned. Otherwise %0 is returned on success.
119 */
120int __init register_security(struct security_operations *ops)
121{
122 if (verify(ops)) {
123 printk(KERN_DEBUG "%s could not verify "
124 "security_operations structure.\n", __func__);
125 return -EINVAL;
126 }
127
128 if (security_ops != &default_security_ops)
129 return -EAGAIN;
130
131 security_ops = ops;
132
133 return 0;
134}
135
136/* Security operations */
137
138int security_ptrace_access_check(struct task_struct *child, unsigned int mode)
139{
140#ifdef CONFIG_SECURITY_YAMA_STACKED
141 int rc;
142 rc = yama_ptrace_access_check(child, mode);
143 if (rc)
144 return rc;
145#endif
146 return security_ops->ptrace_access_check(child, mode);
147}
148
149int security_ptrace_traceme(struct task_struct *parent)
150{
151#ifdef CONFIG_SECURITY_YAMA_STACKED
152 int rc;
153 rc = yama_ptrace_traceme(parent);
154 if (rc)
155 return rc;
156#endif
157 return security_ops->ptrace_traceme(parent);
158}
159
160int security_capget(struct task_struct *target,
161 kernel_cap_t *effective,
162 kernel_cap_t *inheritable,
163 kernel_cap_t *permitted)
164{
165 return security_ops->capget(target, effective, inheritable, permitted);
166}
167
168int security_capset(struct cred *new, const struct cred *old,
169 const kernel_cap_t *effective,
170 const kernel_cap_t *inheritable,
171 const kernel_cap_t *permitted)
172{
173 return security_ops->capset(new, old,
174 effective, inheritable, permitted);
175}
176
177int security_capable(const struct cred *cred, struct user_namespace *ns,
178 int cap)
179{
180 return security_ops->capable(cred, ns, cap, SECURITY_CAP_AUDIT);
181}
182
183int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
184 int cap)
185{
186 return security_ops->capable(cred, ns, cap, SECURITY_CAP_NOAUDIT);
187}
188
189int security_quotactl(int cmds, int type, int id, struct super_block *sb)
190{
191 return security_ops->quotactl(cmds, type, id, sb);
192}
193
194int security_quota_on(struct dentry *dentry)
195{
196 return security_ops->quota_on(dentry);
197}
198
199int security_syslog(int type)
200{
201 return security_ops->syslog(type);
202}
203
204int security_settime(const struct timespec *ts, const struct timezone *tz)
205{
206 return security_ops->settime(ts, tz);
207}
208
209int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
210{
211 return security_ops->vm_enough_memory(mm, pages);
212}
213
214int security_bprm_set_creds(struct linux_binprm *bprm)
215{
216 return security_ops->bprm_set_creds(bprm);
217}
218
219int security_bprm_check(struct linux_binprm *bprm)
220{
221 int ret;
222
223 ret = security_ops->bprm_check_security(bprm);
224 if (ret)
225 return ret;
226 return ima_bprm_check(bprm);
227}
228
229void security_bprm_committing_creds(struct linux_binprm *bprm)
230{
231 security_ops->bprm_committing_creds(bprm);
232}
233
234void security_bprm_committed_creds(struct linux_binprm *bprm)
235{
236 security_ops->bprm_committed_creds(bprm);
237}
238
239int security_bprm_secureexec(struct linux_binprm *bprm)
240{
241 return security_ops->bprm_secureexec(bprm);
242}
243
244int security_sb_alloc(struct super_block *sb)
245{
246 return security_ops->sb_alloc_security(sb);
247}
248
249void security_sb_free(struct super_block *sb)
250{
251 security_ops->sb_free_security(sb);
252}
253
254int security_sb_copy_data(char *orig, char *copy)
255{
256 return security_ops->sb_copy_data(orig, copy);
257}
258EXPORT_SYMBOL(security_sb_copy_data);
259
260int security_sb_remount(struct super_block *sb, void *data)
261{
262 return security_ops->sb_remount(sb, data);
263}
264
265int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
266{
267 return security_ops->sb_kern_mount(sb, flags, data);
268}
269
270int security_sb_show_options(struct seq_file *m, struct super_block *sb)
271{
272 return security_ops->sb_show_options(m, sb);
273}
274
275int security_sb_statfs(struct dentry *dentry)
276{
277 return security_ops->sb_statfs(dentry);
278}
279
280int security_sb_mount(const char *dev_name, struct path *path,
281 const char *type, unsigned long flags, void *data)
282{
283 return security_ops->sb_mount(dev_name, path, type, flags, data);
284}
285
286int security_sb_umount(struct vfsmount *mnt, int flags)
287{
288 return security_ops->sb_umount(mnt, flags);
289}
290
291int security_sb_pivotroot(struct path *old_path, struct path *new_path)
292{
293 return security_ops->sb_pivotroot(old_path, new_path);
294}
295
296int security_sb_set_mnt_opts(struct super_block *sb,
297 struct security_mnt_opts *opts,
298 unsigned long kern_flags,
299 unsigned long *set_kern_flags)
300{
301 return security_ops->sb_set_mnt_opts(sb, opts, kern_flags,
302 set_kern_flags);
303}
304EXPORT_SYMBOL(security_sb_set_mnt_opts);
305
306int security_sb_clone_mnt_opts(const struct super_block *oldsb,
307 struct super_block *newsb)
308{
309 return security_ops->sb_clone_mnt_opts(oldsb, newsb);
310}
311EXPORT_SYMBOL(security_sb_clone_mnt_opts);
312
313int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
314{
315 return security_ops->sb_parse_opts_str(options, opts);
316}
317EXPORT_SYMBOL(security_sb_parse_opts_str);
318
319int security_inode_alloc(struct inode *inode)
320{
321 inode->i_security = NULL;
322 return security_ops->inode_alloc_security(inode);
323}
324
325void security_inode_free(struct inode *inode)
326{
327 integrity_inode_free(inode);
328 security_ops->inode_free_security(inode);
329}
330
331int security_dentry_init_security(struct dentry *dentry, int mode,
332 struct qstr *name, void **ctx,
333 u32 *ctxlen)
334{
335 return security_ops->dentry_init_security(dentry, mode, name,
336 ctx, ctxlen);
337}
338EXPORT_SYMBOL(security_dentry_init_security);
339
340int security_inode_init_security(struct inode *inode, struct inode *dir,
341 const struct qstr *qstr,
342 const initxattrs initxattrs, void *fs_data)
343{
344 struct xattr new_xattrs[MAX_LSM_EVM_XATTR + 1];
345 struct xattr *lsm_xattr, *evm_xattr, *xattr;
346 int ret;
347
348 if (unlikely(IS_PRIVATE(inode)))
349 return 0;
350
351 if (!initxattrs)
352 return security_ops->inode_init_security(inode, dir, qstr,
353 NULL, NULL, NULL);
354 memset(new_xattrs, 0, sizeof(new_xattrs));
355 lsm_xattr = new_xattrs;
356 ret = security_ops->inode_init_security(inode, dir, qstr,
357 &lsm_xattr->name,
358 &lsm_xattr->value,
359 &lsm_xattr->value_len);
360 if (ret)
361 goto out;
362
363 evm_xattr = lsm_xattr + 1;
364 ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr);
365 if (ret)
366 goto out;
367 ret = initxattrs(inode, new_xattrs, fs_data);
368out:
369 for (xattr = new_xattrs; xattr->value != NULL; xattr++)
370 kfree(xattr->value);
371 return (ret == -EOPNOTSUPP) ? 0 : ret;
372}
373EXPORT_SYMBOL(security_inode_init_security);
374
375int security_old_inode_init_security(struct inode *inode, struct inode *dir,
376 const struct qstr *qstr, const char **name,
377 void **value, size_t *len)
378{
379 if (unlikely(IS_PRIVATE(inode)))
380 return -EOPNOTSUPP;
381 return security_ops->inode_init_security(inode, dir, qstr, name, value,
382 len);
383}
384EXPORT_SYMBOL(security_old_inode_init_security);
385
386#ifdef CONFIG_SECURITY_PATH
387int security_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
388 unsigned int dev)
389{
390 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
391 return 0;
392 return security_ops->path_mknod(dir, dentry, mode, dev);
393}
394EXPORT_SYMBOL(security_path_mknod);
395
396int security_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
397{
398 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
399 return 0;
400 return security_ops->path_mkdir(dir, dentry, mode);
401}
402EXPORT_SYMBOL(security_path_mkdir);
403
404int security_path_rmdir(struct path *dir, struct dentry *dentry)
405{
406 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
407 return 0;
408 return security_ops->path_rmdir(dir, dentry);
409}
410
411int security_path_unlink(struct path *dir, struct dentry *dentry)
412{
413 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
414 return 0;
415 return security_ops->path_unlink(dir, dentry);
416}
417EXPORT_SYMBOL(security_path_unlink);
418
419int security_path_symlink(struct path *dir, struct dentry *dentry,
420 const char *old_name)
421{
422 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
423 return 0;
424 return security_ops->path_symlink(dir, dentry, old_name);
425}
426
427int security_path_link(struct dentry *old_dentry, struct path *new_dir,
428 struct dentry *new_dentry)
429{
430 if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
431 return 0;
432 return security_ops->path_link(old_dentry, new_dir, new_dentry);
433}
434
435int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
436 struct path *new_dir, struct dentry *new_dentry,
437 unsigned int flags)
438{
439 if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
440 (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
441 return 0;
442
443 if (flags & RENAME_EXCHANGE) {
444 int err = security_ops->path_rename(new_dir, new_dentry,
445 old_dir, old_dentry);
446 if (err)
447 return err;
448 }
449
450 return security_ops->path_rename(old_dir, old_dentry, new_dir,
451 new_dentry);
452}
453EXPORT_SYMBOL(security_path_rename);
454
455int security_path_truncate(struct path *path)
456{
457 if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
458 return 0;
459 return security_ops->path_truncate(path);
460}
461
462int security_path_chmod(struct path *path, umode_t mode)
463{
464 if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
465 return 0;
466 return security_ops->path_chmod(path, mode);
467}
468
469int security_path_chown(struct path *path, kuid_t uid, kgid_t gid)
470{
471 if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
472 return 0;
473 return security_ops->path_chown(path, uid, gid);
474}
475
476int security_path_chroot(struct path *path)
477{
478 return security_ops->path_chroot(path);
479}
480#endif
481
482int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode)
483{
484 if (unlikely(IS_PRIVATE(dir)))
485 return 0;
486 return security_ops->inode_create(dir, dentry, mode);
487}
488EXPORT_SYMBOL_GPL(security_inode_create);
489
490int security_inode_link(struct dentry *old_dentry, struct inode *dir,
491 struct dentry *new_dentry)
492{
493 if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
494 return 0;
495 return security_ops->inode_link(old_dentry, dir, new_dentry);
496}
497
498int security_inode_unlink(struct inode *dir, struct dentry *dentry)
499{
500 if (unlikely(IS_PRIVATE(dentry->d_inode)))
501 return 0;
502 return security_ops->inode_unlink(dir, dentry);
503}
504
505int security_inode_symlink(struct inode *dir, struct dentry *dentry,
506 const char *old_name)
507{
508 if (unlikely(IS_PRIVATE(dir)))
509 return 0;
510 return security_ops->inode_symlink(dir, dentry, old_name);
511}
512
513int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
514{
515 if (unlikely(IS_PRIVATE(dir)))
516 return 0;
517 return security_ops->inode_mkdir(dir, dentry, mode);
518}
519EXPORT_SYMBOL_GPL(security_inode_mkdir);
520
521int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
522{
523 if (unlikely(IS_PRIVATE(dentry->d_inode)))
524 return 0;
525 return security_ops->inode_rmdir(dir, dentry);
526}
527
528int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
529{
530 if (unlikely(IS_PRIVATE(dir)))
531 return 0;
532 return security_ops->inode_mknod(dir, dentry, mode, dev);
533}
534
535int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
536 struct inode *new_dir, struct dentry *new_dentry,
537 unsigned int flags)
538{
539 if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
540 (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
541 return 0;
542
543 if (flags & RENAME_EXCHANGE) {
544 int err = security_ops->inode_rename(new_dir, new_dentry,
545 old_dir, old_dentry);
546 if (err)
547 return err;
548 }
549
550 return security_ops->inode_rename(old_dir, old_dentry,
551 new_dir, new_dentry);
552}
553
554int security_inode_readlink(struct dentry *dentry)
555{
556 if (unlikely(IS_PRIVATE(dentry->d_inode)))
557 return 0;
558 return security_ops->inode_readlink(dentry);
559}
560
561int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
562{
563 if (unlikely(IS_PRIVATE(dentry->d_inode)))
564 return 0;
565 return security_ops->inode_follow_link(dentry, nd);
566}
567
568int security_inode_permission(struct inode *inode, int mask)
569{
570 if (unlikely(IS_PRIVATE(inode)))
571 return 0;
572 return security_ops->inode_permission(inode, mask);
573}
574
575int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
576{
577 int ret;
578
579 if (unlikely(IS_PRIVATE(dentry->d_inode)))
580 return 0;
581 ret = security_ops->inode_setattr(dentry, attr);
582 if (ret)
583 return ret;
584 return evm_inode_setattr(dentry, attr);
585}
586EXPORT_SYMBOL_GPL(security_inode_setattr);
587
588int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
589{
590 if (unlikely(IS_PRIVATE(dentry->d_inode)))
591 return 0;
592 return security_ops->inode_getattr(mnt, dentry);
593}
594
595int security_inode_setxattr(struct dentry *dentry, const char *name,
596 const void *value, size_t size, int flags)
597{
598 int ret;
599
600 if (unlikely(IS_PRIVATE(dentry->d_inode)))
601 return 0;
602 ret = security_ops->inode_setxattr(dentry, name, value, size, flags);
603 if (ret)
604 return ret;
605 ret = ima_inode_setxattr(dentry, name, value, size);
606 if (ret)
607 return ret;
608 return evm_inode_setxattr(dentry, name, value, size);
609}
610
611void security_inode_post_setxattr(struct dentry *dentry, const char *name,
612 const void *value, size_t size, int flags)
613{
614 if (unlikely(IS_PRIVATE(dentry->d_inode)))
615 return;
616 security_ops->inode_post_setxattr(dentry, name, value, size, flags);
617 evm_inode_post_setxattr(dentry, name, value, size);
618}
619
620int security_inode_getxattr(struct dentry *dentry, const char *name)
621{
622 if (unlikely(IS_PRIVATE(dentry->d_inode)))
623 return 0;
624 return security_ops->inode_getxattr(dentry, name);
625}
626
627int security_inode_listxattr(struct dentry *dentry)
628{
629 if (unlikely(IS_PRIVATE(dentry->d_inode)))
630 return 0;
631 return security_ops->inode_listxattr(dentry);
632}
633
634int security_inode_removexattr(struct dentry *dentry, const char *name)
635{
636 int ret;
637
638 if (unlikely(IS_PRIVATE(dentry->d_inode)))
639 return 0;
640 ret = security_ops->inode_removexattr(dentry, name);
641 if (ret)
642 return ret;
643 ret = ima_inode_removexattr(dentry, name);
644 if (ret)
645 return ret;
646 return evm_inode_removexattr(dentry, name);
647}
648
649int security_inode_need_killpriv(struct dentry *dentry)
650{
651 return security_ops->inode_need_killpriv(dentry);
652}
653
654int security_inode_killpriv(struct dentry *dentry)
655{
656 return security_ops->inode_killpriv(dentry);
657}
658
659int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
660{
661 if (unlikely(IS_PRIVATE(inode)))
662 return -EOPNOTSUPP;
663 return security_ops->inode_getsecurity(inode, name, buffer, alloc);
664}
665
666int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
667{
668 if (unlikely(IS_PRIVATE(inode)))
669 return -EOPNOTSUPP;
670 return security_ops->inode_setsecurity(inode, name, value, size, flags);
671}
672
673int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
674{
675 if (unlikely(IS_PRIVATE(inode)))
676 return 0;
677 return security_ops->inode_listsecurity(inode, buffer, buffer_size);
678}
679EXPORT_SYMBOL(security_inode_listsecurity);
680
681void security_inode_getsecid(const struct inode *inode, u32 *secid)
682{
683 security_ops->inode_getsecid(inode, secid);
684}
685
686int security_file_permission(struct file *file, int mask)
687{
688 int ret;
689
690 ret = security_ops->file_permission(file, mask);
691 if (ret)
692 return ret;
693
694 return fsnotify_perm(file, mask);
695}
696
697int security_file_alloc(struct file *file)
698{
699 return security_ops->file_alloc_security(file);
700}
701
702void security_file_free(struct file *file)
703{
704 security_ops->file_free_security(file);
705}
706
707int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
708{
709 return security_ops->file_ioctl(file, cmd, arg);
710}
711
712static inline unsigned long mmap_prot(struct file *file, unsigned long prot)
713{
714 /*
715 * Does we have PROT_READ and does the application expect
716 * it to imply PROT_EXEC? If not, nothing to talk about...
717 */
718 if ((prot & (PROT_READ | PROT_EXEC)) != PROT_READ)
719 return prot;
720 if (!(current->personality & READ_IMPLIES_EXEC))
721 return prot;
722 /*
723 * if that's an anonymous mapping, let it.
724 */
725 if (!file)
726 return prot | PROT_EXEC;
727 /*
728 * ditto if it's not on noexec mount, except that on !MMU we need
729 * BDI_CAP_EXEC_MMAP (== VM_MAYEXEC) in this case
730 */
731 if (!(file->f_path.mnt->mnt_flags & MNT_NOEXEC)) {
732#ifndef CONFIG_MMU
733 unsigned long caps = 0;
734 struct address_space *mapping = file->f_mapping;
735 if (mapping && mapping->backing_dev_info)
736 caps = mapping->backing_dev_info->capabilities;
737 if (!(caps & BDI_CAP_EXEC_MAP))
738 return prot;
739#endif
740 return prot | PROT_EXEC;
741 }
742 /* anything on noexec mount won't get PROT_EXEC */
743 return prot;
744}
745
746int security_mmap_file(struct file *file, unsigned long prot,
747 unsigned long flags)
748{
749 int ret;
750 ret = security_ops->mmap_file(file, prot,
751 mmap_prot(file, prot), flags);
752 if (ret)
753 return ret;
754 return ima_file_mmap(file, prot);
755}
756
757int security_mmap_addr(unsigned long addr)
758{
759 return security_ops->mmap_addr(addr);
760}
761
762int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
763 unsigned long prot)
764{
765 return security_ops->file_mprotect(vma, reqprot, prot);
766}
767
768int security_file_lock(struct file *file, unsigned int cmd)
769{
770 return security_ops->file_lock(file, cmd);
771}
772
773int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
774{
775 return security_ops->file_fcntl(file, cmd, arg);
776}
777
778int security_file_set_fowner(struct file *file)
779{
780 return security_ops->file_set_fowner(file);
781}
782
783int security_file_send_sigiotask(struct task_struct *tsk,
784 struct fown_struct *fown, int sig)
785{
786 return security_ops->file_send_sigiotask(tsk, fown, sig);
787}
788
789int security_file_receive(struct file *file)
790{
791 return security_ops->file_receive(file);
792}
793
794int security_file_open(struct file *file, const struct cred *cred)
795{
796 int ret;
797
798 ret = security_ops->file_open(file, cred);
799 if (ret)
800 return ret;
801
802 return fsnotify_perm(file, MAY_OPEN);
803}
804
805int security_task_create(unsigned long clone_flags)
806{
807 return security_ops->task_create(clone_flags);
808}
809
810void security_task_free(struct task_struct *task)
811{
812#ifdef CONFIG_SECURITY_YAMA_STACKED
813 yama_task_free(task);
814#endif
815 security_ops->task_free(task);
816}
817
818int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
819{
820 return security_ops->cred_alloc_blank(cred, gfp);
821}
822
823void security_cred_free(struct cred *cred)
824{
825 security_ops->cred_free(cred);
826}
827
828int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
829{
830 return security_ops->cred_prepare(new, old, gfp);
831}
832
833void security_transfer_creds(struct cred *new, const struct cred *old)
834{
835 security_ops->cred_transfer(new, old);
836}
837
838int security_kernel_act_as(struct cred *new, u32 secid)
839{
840 return security_ops->kernel_act_as(new, secid);
841}
842
843int security_kernel_create_files_as(struct cred *new, struct inode *inode)
844{
845 return security_ops->kernel_create_files_as(new, inode);
846}
847
848int security_kernel_module_request(char *kmod_name)
849{
850 return security_ops->kernel_module_request(kmod_name);
851}
852
853int security_kernel_module_from_file(struct file *file)
854{
855 int ret;
856
857 ret = security_ops->kernel_module_from_file(file);
858 if (ret)
859 return ret;
860 return ima_module_check(file);
861}
862
863int security_task_fix_setuid(struct cred *new, const struct cred *old,
864 int flags)
865{
866 return security_ops->task_fix_setuid(new, old, flags);
867}
868
869int security_task_setpgid(struct task_struct *p, pid_t pgid)
870{
871 return security_ops->task_setpgid(p, pgid);
872}
873
874int security_task_getpgid(struct task_struct *p)
875{
876 return security_ops->task_getpgid(p);
877}
878
879int security_task_getsid(struct task_struct *p)
880{
881 return security_ops->task_getsid(p);
882}
883
884void security_task_getsecid(struct task_struct *p, u32 *secid)
885{
886 security_ops->task_getsecid(p, secid);
887}
888EXPORT_SYMBOL(security_task_getsecid);
889
890int security_task_setnice(struct task_struct *p, int nice)
891{
892 return security_ops->task_setnice(p, nice);
893}
894
895int security_task_setioprio(struct task_struct *p, int ioprio)
896{
897 return security_ops->task_setioprio(p, ioprio);
898}
899
900int security_task_getioprio(struct task_struct *p)
901{
902 return security_ops->task_getioprio(p);
903}
904
905int security_task_setrlimit(struct task_struct *p, unsigned int resource,
906 struct rlimit *new_rlim)
907{
908 return security_ops->task_setrlimit(p, resource, new_rlim);
909}
910
911int security_task_setscheduler(struct task_struct *p)
912{
913 return security_ops->task_setscheduler(p);
914}
915
916int security_task_getscheduler(struct task_struct *p)
917{
918 return security_ops->task_getscheduler(p);
919}
920
921int security_task_movememory(struct task_struct *p)
922{
923 return security_ops->task_movememory(p);
924}
925
926int security_task_kill(struct task_struct *p, struct siginfo *info,
927 int sig, u32 secid)
928{
929 return security_ops->task_kill(p, info, sig, secid);
930}
931
932int security_task_wait(struct task_struct *p)
933{
934 return security_ops->task_wait(p);
935}
936
937int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
938 unsigned long arg4, unsigned long arg5)
939{
940#ifdef CONFIG_SECURITY_YAMA_STACKED
941 int rc;
942 rc = yama_task_prctl(option, arg2, arg3, arg4, arg5);
943 if (rc != -ENOSYS)
944 return rc;
945#endif
946 return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
947}
948
949void security_task_to_inode(struct task_struct *p, struct inode *inode)
950{
951 security_ops->task_to_inode(p, inode);
952}
953
954int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
955{
956 return security_ops->ipc_permission(ipcp, flag);
957}
958
959void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
960{
961 security_ops->ipc_getsecid(ipcp, secid);
962}
963
964int security_msg_msg_alloc(struct msg_msg *msg)
965{
966 return security_ops->msg_msg_alloc_security(msg);
967}
968
969void security_msg_msg_free(struct msg_msg *msg)
970{
971 security_ops->msg_msg_free_security(msg);
972}
973
974int security_msg_queue_alloc(struct msg_queue *msq)
975{
976 return security_ops->msg_queue_alloc_security(msq);
977}
978
979void security_msg_queue_free(struct msg_queue *msq)
980{
981 security_ops->msg_queue_free_security(msq);
982}
983
984int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
985{
986 return security_ops->msg_queue_associate(msq, msqflg);
987}
988
989int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
990{
991 return security_ops->msg_queue_msgctl(msq, cmd);
992}
993
994int security_msg_queue_msgsnd(struct msg_queue *msq,
995 struct msg_msg *msg, int msqflg)
996{
997 return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
998}
999
1000int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
1001 struct task_struct *target, long type, int mode)
1002{
1003 return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
1004}
1005
1006int security_shm_alloc(struct shmid_kernel *shp)
1007{
1008 return security_ops->shm_alloc_security(shp);
1009}
1010
1011void security_shm_free(struct shmid_kernel *shp)
1012{
1013 security_ops->shm_free_security(shp);
1014}
1015
1016int security_shm_associate(struct shmid_kernel *shp, int shmflg)
1017{
1018 return security_ops->shm_associate(shp, shmflg);
1019}
1020
1021int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
1022{
1023 return security_ops->shm_shmctl(shp, cmd);
1024}
1025
1026int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
1027{
1028 return security_ops->shm_shmat(shp, shmaddr, shmflg);
1029}
1030
1031int security_sem_alloc(struct sem_array *sma)
1032{
1033 return security_ops->sem_alloc_security(sma);
1034}
1035
1036void security_sem_free(struct sem_array *sma)
1037{
1038 security_ops->sem_free_security(sma);
1039}
1040
1041int security_sem_associate(struct sem_array *sma, int semflg)
1042{
1043 return security_ops->sem_associate(sma, semflg);
1044}
1045
1046int security_sem_semctl(struct sem_array *sma, int cmd)
1047{
1048 return security_ops->sem_semctl(sma, cmd);
1049}
1050
1051int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1052 unsigned nsops, int alter)
1053{
1054 return security_ops->sem_semop(sma, sops, nsops, alter);
1055}
1056
1057void security_d_instantiate(struct dentry *dentry, struct inode *inode)
1058{
1059 if (unlikely(inode && IS_PRIVATE(inode)))
1060 return;
1061 security_ops->d_instantiate(dentry, inode);
1062}
1063EXPORT_SYMBOL(security_d_instantiate);
1064
1065int security_getprocattr(struct task_struct *p, char *name, char **value)
1066{
1067 return security_ops->getprocattr(p, name, value);
1068}
1069
1070int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
1071{
1072 return security_ops->setprocattr(p, name, value, size);
1073}
1074
1075int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1076{
1077 return security_ops->netlink_send(sk, skb);
1078}
1079
1080int security_ismaclabel(const char *name)
1081{
1082 return security_ops->ismaclabel(name);
1083}
1084EXPORT_SYMBOL(security_ismaclabel);
1085
1086int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1087{
1088 return security_ops->secid_to_secctx(secid, secdata, seclen);
1089}
1090EXPORT_SYMBOL(security_secid_to_secctx);
1091
1092int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
1093{
1094 return security_ops->secctx_to_secid(secdata, seclen, secid);
1095}
1096EXPORT_SYMBOL(security_secctx_to_secid);
1097
1098void security_release_secctx(char *secdata, u32 seclen)
1099{
1100 security_ops->release_secctx(secdata, seclen);
1101}
1102EXPORT_SYMBOL(security_release_secctx);
1103
1104int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1105{
1106 return security_ops->inode_notifysecctx(inode, ctx, ctxlen);
1107}
1108EXPORT_SYMBOL(security_inode_notifysecctx);
1109
1110int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1111{
1112 return security_ops->inode_setsecctx(dentry, ctx, ctxlen);
1113}
1114EXPORT_SYMBOL(security_inode_setsecctx);
1115
1116int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1117{
1118 return security_ops->inode_getsecctx(inode, ctx, ctxlen);
1119}
1120EXPORT_SYMBOL(security_inode_getsecctx);
1121
1122#ifdef CONFIG_SECURITY_NETWORK
1123
1124int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk)
1125{
1126 return security_ops->unix_stream_connect(sock, other, newsk);
1127}
1128EXPORT_SYMBOL(security_unix_stream_connect);
1129
1130int security_unix_may_send(struct socket *sock, struct socket *other)
1131{
1132 return security_ops->unix_may_send(sock, other);
1133}
1134EXPORT_SYMBOL(security_unix_may_send);
1135
1136int security_socket_create(int family, int type, int protocol, int kern)
1137{
1138 return security_ops->socket_create(family, type, protocol, kern);
1139}
1140
1141int security_socket_post_create(struct socket *sock, int family,
1142 int type, int protocol, int kern)
1143{
1144 return security_ops->socket_post_create(sock, family, type,
1145 protocol, kern);
1146}
1147
1148int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
1149{
1150 return security_ops->socket_bind(sock, address, addrlen);
1151}
1152
1153int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
1154{
1155 return security_ops->socket_connect(sock, address, addrlen);
1156}
1157
1158int security_socket_listen(struct socket *sock, int backlog)
1159{
1160 return security_ops->socket_listen(sock, backlog);
1161}
1162
1163int security_socket_accept(struct socket *sock, struct socket *newsock)
1164{
1165 return security_ops->socket_accept(sock, newsock);
1166}
1167
1168int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1169{
1170 return security_ops->socket_sendmsg(sock, msg, size);
1171}
1172
1173int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1174 int size, int flags)
1175{
1176 return security_ops->socket_recvmsg(sock, msg, size, flags);
1177}
1178
1179int security_socket_getsockname(struct socket *sock)
1180{
1181 return security_ops->socket_getsockname(sock);
1182}
1183
1184int security_socket_getpeername(struct socket *sock)
1185{
1186 return security_ops->socket_getpeername(sock);
1187}
1188
1189int security_socket_getsockopt(struct socket *sock, int level, int optname)
1190{
1191 return security_ops->socket_getsockopt(sock, level, optname);
1192}
1193
1194int security_socket_setsockopt(struct socket *sock, int level, int optname)
1195{
1196 return security_ops->socket_setsockopt(sock, level, optname);
1197}
1198
1199int security_socket_shutdown(struct socket *sock, int how)
1200{
1201 return security_ops->socket_shutdown(sock, how);
1202}
1203
1204int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1205{
1206 return security_ops->socket_sock_rcv_skb(sk, skb);
1207}
1208EXPORT_SYMBOL(security_sock_rcv_skb);
1209
1210int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1211 int __user *optlen, unsigned len)
1212{
1213 return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
1214}
1215
1216int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1217{
1218 return security_ops->socket_getpeersec_dgram(sock, skb, secid);
1219}
1220EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1221
1222int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1223{
1224 return security_ops->sk_alloc_security(sk, family, priority);
1225}
1226
1227void security_sk_free(struct sock *sk)
1228{
1229 security_ops->sk_free_security(sk);
1230}
1231
1232void security_sk_clone(const struct sock *sk, struct sock *newsk)
1233{
1234 security_ops->sk_clone_security(sk, newsk);
1235}
1236EXPORT_SYMBOL(security_sk_clone);
1237
1238void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1239{
1240 security_ops->sk_getsecid(sk, &fl->flowi_secid);
1241}
1242EXPORT_SYMBOL(security_sk_classify_flow);
1243
1244void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1245{
1246 security_ops->req_classify_flow(req, fl);
1247}
1248EXPORT_SYMBOL(security_req_classify_flow);
1249
1250void security_sock_graft(struct sock *sk, struct socket *parent)
1251{
1252 security_ops->sock_graft(sk, parent);
1253}
1254EXPORT_SYMBOL(security_sock_graft);
1255
1256int security_inet_conn_request(struct sock *sk,
1257 struct sk_buff *skb, struct request_sock *req)
1258{
1259 return security_ops->inet_conn_request(sk, skb, req);
1260}
1261EXPORT_SYMBOL(security_inet_conn_request);
1262
1263void security_inet_csk_clone(struct sock *newsk,
1264 const struct request_sock *req)
1265{
1266 security_ops->inet_csk_clone(newsk, req);
1267}
1268
1269void security_inet_conn_established(struct sock *sk,
1270 struct sk_buff *skb)
1271{
1272 security_ops->inet_conn_established(sk, skb);
1273}
1274
1275int security_secmark_relabel_packet(u32 secid)
1276{
1277 return security_ops->secmark_relabel_packet(secid);
1278}
1279EXPORT_SYMBOL(security_secmark_relabel_packet);
1280
1281void security_secmark_refcount_inc(void)
1282{
1283 security_ops->secmark_refcount_inc();
1284}
1285EXPORT_SYMBOL(security_secmark_refcount_inc);
1286
1287void security_secmark_refcount_dec(void)
1288{
1289 security_ops->secmark_refcount_dec();
1290}
1291EXPORT_SYMBOL(security_secmark_refcount_dec);
1292
1293int security_tun_dev_alloc_security(void **security)
1294{
1295 return security_ops->tun_dev_alloc_security(security);
1296}
1297EXPORT_SYMBOL(security_tun_dev_alloc_security);
1298
1299void security_tun_dev_free_security(void *security)
1300{
1301 security_ops->tun_dev_free_security(security);
1302}
1303EXPORT_SYMBOL(security_tun_dev_free_security);
1304
1305int security_tun_dev_create(void)
1306{
1307 return security_ops->tun_dev_create();
1308}
1309EXPORT_SYMBOL(security_tun_dev_create);
1310
1311int security_tun_dev_attach_queue(void *security)
1312{
1313 return security_ops->tun_dev_attach_queue(security);
1314}
1315EXPORT_SYMBOL(security_tun_dev_attach_queue);
1316
1317int security_tun_dev_attach(struct sock *sk, void *security)
1318{
1319 return security_ops->tun_dev_attach(sk, security);
1320}
1321EXPORT_SYMBOL(security_tun_dev_attach);
1322
1323int security_tun_dev_open(void *security)
1324{
1325 return security_ops->tun_dev_open(security);
1326}
1327EXPORT_SYMBOL(security_tun_dev_open);
1328
1329void security_skb_owned_by(struct sk_buff *skb, struct sock *sk)
1330{
1331 security_ops->skb_owned_by(skb, sk);
1332}
1333
1334#endif /* CONFIG_SECURITY_NETWORK */
1335
1336#ifdef CONFIG_SECURITY_NETWORK_XFRM
1337
1338int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1339 struct xfrm_user_sec_ctx *sec_ctx,
1340 gfp_t gfp)
1341{
1342 return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx, gfp);
1343}
1344EXPORT_SYMBOL(security_xfrm_policy_alloc);
1345
1346int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1347 struct xfrm_sec_ctx **new_ctxp)
1348{
1349 return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
1350}
1351
1352void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1353{
1354 security_ops->xfrm_policy_free_security(ctx);
1355}
1356EXPORT_SYMBOL(security_xfrm_policy_free);
1357
1358int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1359{
1360 return security_ops->xfrm_policy_delete_security(ctx);
1361}
1362
1363int security_xfrm_state_alloc(struct xfrm_state *x,
1364 struct xfrm_user_sec_ctx *sec_ctx)
1365{
1366 return security_ops->xfrm_state_alloc(x, sec_ctx);
1367}
1368EXPORT_SYMBOL(security_xfrm_state_alloc);
1369
1370int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1371 struct xfrm_sec_ctx *polsec, u32 secid)
1372{
1373 return security_ops->xfrm_state_alloc_acquire(x, polsec, secid);
1374}
1375
1376int security_xfrm_state_delete(struct xfrm_state *x)
1377{
1378 return security_ops->xfrm_state_delete_security(x);
1379}
1380EXPORT_SYMBOL(security_xfrm_state_delete);
1381
1382void security_xfrm_state_free(struct xfrm_state *x)
1383{
1384 security_ops->xfrm_state_free_security(x);
1385}
1386
1387int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1388{
1389 return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
1390}
1391
1392int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1393 struct xfrm_policy *xp,
1394 const struct flowi *fl)
1395{
1396 return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
1397}
1398
1399int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1400{
1401 return security_ops->xfrm_decode_session(skb, secid, 1);
1402}
1403
1404void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1405{
1406 int rc = security_ops->xfrm_decode_session(skb, &fl->flowi_secid, 0);
1407
1408 BUG_ON(rc);
1409}
1410EXPORT_SYMBOL(security_skb_classify_flow);
1411
1412#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1413
1414#ifdef CONFIG_KEYS
1415
1416int security_key_alloc(struct key *key, const struct cred *cred,
1417 unsigned long flags)
1418{
1419 return security_ops->key_alloc(key, cred, flags);
1420}
1421
1422void security_key_free(struct key *key)
1423{
1424 security_ops->key_free(key);
1425}
1426
1427int security_key_permission(key_ref_t key_ref,
1428 const struct cred *cred, key_perm_t perm)
1429{
1430 return security_ops->key_permission(key_ref, cred, perm);
1431}
1432
1433int security_key_getsecurity(struct key *key, char **_buffer)
1434{
1435 return security_ops->key_getsecurity(key, _buffer);
1436}
1437
1438#endif /* CONFIG_KEYS */
1439
1440#ifdef CONFIG_AUDIT
1441
1442int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1443{
1444 return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
1445}
1446
1447int security_audit_rule_known(struct audit_krule *krule)
1448{
1449 return security_ops->audit_rule_known(krule);
1450}
1451
1452void security_audit_rule_free(void *lsmrule)
1453{
1454 security_ops->audit_rule_free(lsmrule);
1455}
1456
1457int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1458 struct audit_context *actx)
1459{
1460 return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
1461}
1462
1463#endif /* CONFIG_AUDIT */
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 */
22static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
23 CONFIG_DEFAULT_SECURITY;
24
25/* things that live in capability.c */
26extern void __init security_fixup_ops(struct security_operations *ops);
27
28static struct security_operations *security_ops;
29static struct security_operations default_security_ops = {
30 .name = "default",
31};
32
33static 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
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{
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
68void reset_security_ops(void)
69{
70 security_ops = &default_security_ops;
71}
72
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
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 */
95int __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 */
112int __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
130int security_ptrace_access_check(struct task_struct *child, unsigned int mode)
131{
132 return security_ops->ptrace_access_check(child, mode);
133}
134
135int security_ptrace_traceme(struct task_struct *parent)
136{
137 return security_ops->ptrace_traceme(parent);
138}
139
140int 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
148int 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
157int security_capable(struct user_namespace *ns, const struct cred *cred,
158 int cap)
159{
160 return security_ops->capable(current, cred, ns, cap,
161 SECURITY_CAP_AUDIT);
162}
163
164int security_real_capable(struct task_struct *tsk, struct user_namespace *ns,
165 int cap)
166{
167 const struct cred *cred;
168 int ret;
169
170 cred = get_task_cred(tsk);
171 ret = security_ops->capable(tsk, cred, ns, cap, SECURITY_CAP_AUDIT);
172 put_cred(cred);
173 return ret;
174}
175
176int security_real_capable_noaudit(struct task_struct *tsk,
177 struct user_namespace *ns, int cap)
178{
179 const struct cred *cred;
180 int ret;
181
182 cred = get_task_cred(tsk);
183 ret = security_ops->capable(tsk, cred, ns, cap, SECURITY_CAP_NOAUDIT);
184 put_cred(cred);
185 return ret;
186}
187
188int security_quotactl(int cmds, int type, int id, struct super_block *sb)
189{
190 return security_ops->quotactl(cmds, type, id, sb);
191}
192
193int security_quota_on(struct dentry *dentry)
194{
195 return security_ops->quota_on(dentry);
196}
197
198int security_syslog(int type)
199{
200 return security_ops->syslog(type);
201}
202
203int security_settime(const struct timespec *ts, const struct timezone *tz)
204{
205 return security_ops->settime(ts, tz);
206}
207
208int security_vm_enough_memory(long pages)
209{
210 WARN_ON(current->mm == NULL);
211 return security_ops->vm_enough_memory(current->mm, pages);
212}
213
214int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
215{
216 WARN_ON(mm == NULL);
217 return security_ops->vm_enough_memory(mm, pages);
218}
219
220int security_vm_enough_memory_kern(long pages)
221{
222 /* If current->mm is a kernel thread then we will pass NULL,
223 for this specific case that is fine */
224 return security_ops->vm_enough_memory(current->mm, pages);
225}
226
227int security_bprm_set_creds(struct linux_binprm *bprm)
228{
229 return security_ops->bprm_set_creds(bprm);
230}
231
232int security_bprm_check(struct linux_binprm *bprm)
233{
234 int ret;
235
236 ret = security_ops->bprm_check_security(bprm);
237 if (ret)
238 return ret;
239 return ima_bprm_check(bprm);
240}
241
242void security_bprm_committing_creds(struct linux_binprm *bprm)
243{
244 security_ops->bprm_committing_creds(bprm);
245}
246
247void security_bprm_committed_creds(struct linux_binprm *bprm)
248{
249 security_ops->bprm_committed_creds(bprm);
250}
251
252int security_bprm_secureexec(struct linux_binprm *bprm)
253{
254 return security_ops->bprm_secureexec(bprm);
255}
256
257int security_sb_alloc(struct super_block *sb)
258{
259 return security_ops->sb_alloc_security(sb);
260}
261
262void security_sb_free(struct super_block *sb)
263{
264 security_ops->sb_free_security(sb);
265}
266
267int security_sb_copy_data(char *orig, char *copy)
268{
269 return security_ops->sb_copy_data(orig, copy);
270}
271EXPORT_SYMBOL(security_sb_copy_data);
272
273int security_sb_remount(struct super_block *sb, void *data)
274{
275 return security_ops->sb_remount(sb, data);
276}
277
278int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
279{
280 return security_ops->sb_kern_mount(sb, flags, data);
281}
282
283int security_sb_show_options(struct seq_file *m, struct super_block *sb)
284{
285 return security_ops->sb_show_options(m, sb);
286}
287
288int security_sb_statfs(struct dentry *dentry)
289{
290 return security_ops->sb_statfs(dentry);
291}
292
293int security_sb_mount(char *dev_name, struct path *path,
294 char *type, unsigned long flags, void *data)
295{
296 return security_ops->sb_mount(dev_name, path, type, flags, data);
297}
298
299int security_sb_umount(struct vfsmount *mnt, int flags)
300{
301 return security_ops->sb_umount(mnt, flags);
302}
303
304int security_sb_pivotroot(struct path *old_path, struct path *new_path)
305{
306 return security_ops->sb_pivotroot(old_path, new_path);
307}
308
309int security_sb_set_mnt_opts(struct super_block *sb,
310 struct security_mnt_opts *opts)
311{
312 return security_ops->sb_set_mnt_opts(sb, opts);
313}
314EXPORT_SYMBOL(security_sb_set_mnt_opts);
315
316void security_sb_clone_mnt_opts(const struct super_block *oldsb,
317 struct super_block *newsb)
318{
319 security_ops->sb_clone_mnt_opts(oldsb, newsb);
320}
321EXPORT_SYMBOL(security_sb_clone_mnt_opts);
322
323int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
324{
325 return security_ops->sb_parse_opts_str(options, opts);
326}
327EXPORT_SYMBOL(security_sb_parse_opts_str);
328
329int security_inode_alloc(struct inode *inode)
330{
331 inode->i_security = NULL;
332 return security_ops->inode_alloc_security(inode);
333}
334
335void security_inode_free(struct inode *inode)
336{
337 ima_inode_free(inode);
338 security_ops->inode_free_security(inode);
339}
340
341int security_inode_init_security(struct inode *inode, struct inode *dir,
342 const struct qstr *qstr, char **name,
343 void **value, size_t *len)
344{
345 if (unlikely(IS_PRIVATE(inode)))
346 return -EOPNOTSUPP;
347 return security_ops->inode_init_security(inode, dir, qstr, name, value,
348 len);
349}
350EXPORT_SYMBOL(security_inode_init_security);
351
352#ifdef CONFIG_SECURITY_PATH
353int security_path_mknod(struct path *dir, struct dentry *dentry, int mode,
354 unsigned int dev)
355{
356 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
357 return 0;
358 return security_ops->path_mknod(dir, dentry, mode, dev);
359}
360EXPORT_SYMBOL(security_path_mknod);
361
362int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode)
363{
364 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
365 return 0;
366 return security_ops->path_mkdir(dir, dentry, mode);
367}
368EXPORT_SYMBOL(security_path_mkdir);
369
370int security_path_rmdir(struct path *dir, struct dentry *dentry)
371{
372 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
373 return 0;
374 return security_ops->path_rmdir(dir, dentry);
375}
376
377int security_path_unlink(struct path *dir, struct dentry *dentry)
378{
379 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
380 return 0;
381 return security_ops->path_unlink(dir, dentry);
382}
383EXPORT_SYMBOL(security_path_unlink);
384
385int security_path_symlink(struct path *dir, struct dentry *dentry,
386 const char *old_name)
387{
388 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
389 return 0;
390 return security_ops->path_symlink(dir, dentry, old_name);
391}
392
393int security_path_link(struct dentry *old_dentry, struct path *new_dir,
394 struct dentry *new_dentry)
395{
396 if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
397 return 0;
398 return security_ops->path_link(old_dentry, new_dir, new_dentry);
399}
400
401int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
402 struct path *new_dir, struct dentry *new_dentry)
403{
404 if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
405 (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
406 return 0;
407 return security_ops->path_rename(old_dir, old_dentry, new_dir,
408 new_dentry);
409}
410EXPORT_SYMBOL(security_path_rename);
411
412int security_path_truncate(struct path *path)
413{
414 if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
415 return 0;
416 return security_ops->path_truncate(path);
417}
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}
433
434int security_path_chroot(struct path *path)
435{
436 return security_ops->path_chroot(path);
437}
438#endif
439
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}
446EXPORT_SYMBOL_GPL(security_inode_create);
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}
477EXPORT_SYMBOL_GPL(security_inode_mkdir);
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
517int security_inode_permission(struct inode *inode, int mask)
518{
519 if (unlikely(IS_PRIVATE(inode)))
520 return 0;
521 return security_ops->inode_permission(inode, mask);
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}
530EXPORT_SYMBOL_GPL(security_inode_setattr);
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
539int security_inode_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 0;
544 return security_ops->inode_setxattr(dentry, name, value, size, flags);
545}
546
547void security_inode_post_setxattr(struct dentry *dentry, const char *name,
548 const void *value, size_t size, int flags)
549{
550 if (unlikely(IS_PRIVATE(dentry->d_inode)))
551 return;
552 security_ops->inode_post_setxattr(dentry, name, value, size, flags);
553}
554
555int security_inode_getxattr(struct dentry *dentry, const char *name)
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
569int security_inode_removexattr(struct dentry *dentry, const char *name)
570{
571 if (unlikely(IS_PRIVATE(dentry->d_inode)))
572 return 0;
573 return security_ops->inode_removexattr(dentry, name);
574}
575
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
586int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
587{
588 if (unlikely(IS_PRIVATE(inode)))
589 return -EOPNOTSUPP;
590 return security_ops->inode_getsecurity(inode, name, buffer, alloc);
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)))
596 return -EOPNOTSUPP;
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
607void security_inode_getsecid(const struct inode *inode, u32 *secid)
608{
609 security_ops->inode_getsecid(inode, secid);
610}
611
612int security_file_permission(struct file *file, int mask)
613{
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);
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{
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);
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
682int security_dentry_open(struct file *file, const struct cred *cred)
683{
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);
691}
692
693int security_task_create(unsigned long clone_flags)
694{
695 return security_ops->task_create(clone_flags);
696}
697
698int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
699{
700 return security_ops->cred_alloc_blank(cred, gfp);
701}
702
703void security_cred_free(struct cred *cred)
704{
705 security_ops->cred_free(cred);
706}
707
708int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
709{
710 return security_ops->cred_prepare(new, old, gfp);
711}
712
713void security_transfer_creds(struct cred *new, const struct cred *old)
714{
715 security_ops->cred_transfer(new, old);
716}
717
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
728int security_kernel_module_request(char *kmod_name)
729{
730 return security_ops->kernel_module_request(kmod_name);
731}
732
733int security_task_fix_setuid(struct cred *new, const struct cred *old,
734 int flags)
735{
736 return security_ops->task_fix_setuid(new, old, flags);
737}
738
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
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
775int security_task_setrlimit(struct task_struct *p, unsigned int resource,
776 struct rlimit *new_rlim)
777{
778 return security_ops->task_setrlimit(p, resource, new_rlim);
779}
780
781int security_task_setscheduler(struct task_struct *p)
782{
783 return security_ops->task_setscheduler(p);
784}
785
786int security_task_getscheduler(struct task_struct *p)
787{
788 return security_ops->task_getscheduler(p);
789}
790
791int security_task_movememory(struct task_struct *p)
792{
793 return security_ops->task_movememory(p);
794}
795
796int security_task_kill(struct task_struct *p, struct siginfo *info,
797 int sig, u32 secid)
798{
799 return security_ops->task_kill(p, info, sig, secid);
800}
801
802int security_task_wait(struct task_struct *p)
803{
804 return security_ops->task_wait(p);
805}
806
807int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
808 unsigned long arg4, unsigned long arg5)
809{
810 return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
811}
812
813void security_task_to_inode(struct task_struct *p, struct inode *inode)
814{
815 security_ops->task_to_inode(p, inode);
816}
817
818int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
819{
820 return security_ops->ipc_permission(ipcp, flag);
821}
822
823void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
824{
825 security_ops->ipc_getsecid(ipcp, secid);
826}
827
828int security_msg_msg_alloc(struct msg_msg *msg)
829{
830 return security_ops->msg_msg_alloc_security(msg);
831}
832
833void security_msg_msg_free(struct msg_msg *msg)
834{
835 security_ops->msg_msg_free_security(msg);
836}
837
838int security_msg_queue_alloc(struct msg_queue *msq)
839{
840 return security_ops->msg_queue_alloc_security(msq);
841}
842
843void security_msg_queue_free(struct msg_queue *msq)
844{
845 security_ops->msg_queue_free_security(msq);
846}
847
848int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
849{
850 return security_ops->msg_queue_associate(msq, msqflg);
851}
852
853int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
854{
855 return security_ops->msg_queue_msgctl(msq, cmd);
856}
857
858int security_msg_queue_msgsnd(struct msg_queue *msq,
859 struct msg_msg *msg, int msqflg)
860{
861 return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
862}
863
864int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
865 struct task_struct *target, long type, int mode)
866{
867 return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
868}
869
870int security_shm_alloc(struct shmid_kernel *shp)
871{
872 return security_ops->shm_alloc_security(shp);
873}
874
875void security_shm_free(struct shmid_kernel *shp)
876{
877 security_ops->shm_free_security(shp);
878}
879
880int security_shm_associate(struct shmid_kernel *shp, int shmflg)
881{
882 return security_ops->shm_associate(shp, shmflg);
883}
884
885int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
886{
887 return security_ops->shm_shmctl(shp, cmd);
888}
889
890int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
891{
892 return security_ops->shm_shmat(shp, shmaddr, shmflg);
893}
894
895int security_sem_alloc(struct sem_array *sma)
896{
897 return security_ops->sem_alloc_security(sma);
898}
899
900void security_sem_free(struct sem_array *sma)
901{
902 security_ops->sem_free_security(sma);
903}
904
905int security_sem_associate(struct sem_array *sma, int semflg)
906{
907 return security_ops->sem_associate(sma, semflg);
908}
909
910int security_sem_semctl(struct sem_array *sma, int cmd)
911{
912 return security_ops->sem_semctl(sma, cmd);
913}
914
915int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
916 unsigned nsops, int alter)
917{
918 return security_ops->sem_semop(sma, sops, nsops, alter);
919}
920
921void security_d_instantiate(struct dentry *dentry, struct inode *inode)
922{
923 if (unlikely(inode && IS_PRIVATE(inode)))
924 return;
925 security_ops->d_instantiate(dentry, inode);
926}
927EXPORT_SYMBOL(security_d_instantiate);
928
929int security_getprocattr(struct task_struct *p, char *name, char **value)
930{
931 return security_ops->getprocattr(p, name, value);
932}
933
934int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
935{
936 return security_ops->setprocattr(p, name, value, size);
937}
938
939int security_netlink_send(struct sock *sk, struct sk_buff *skb)
940{
941 return security_ops->netlink_send(sk, skb);
942}
943
944int security_netlink_recv(struct sk_buff *skb, int cap)
945{
946 return security_ops->netlink_recv(skb, cap);
947}
948EXPORT_SYMBOL(security_netlink_recv);
949
950int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
951{
952 return security_ops->secid_to_secctx(secid, secdata, seclen);
953}
954EXPORT_SYMBOL(security_secid_to_secctx);
955
956int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
957{
958 return security_ops->secctx_to_secid(secdata, seclen, secid);
959}
960EXPORT_SYMBOL(security_secctx_to_secid);
961
962void security_release_secctx(char *secdata, u32 seclen)
963{
964 security_ops->release_secctx(secdata, seclen);
965}
966EXPORT_SYMBOL(security_release_secctx);
967
968int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
969{
970 return security_ops->inode_notifysecctx(inode, ctx, ctxlen);
971}
972EXPORT_SYMBOL(security_inode_notifysecctx);
973
974int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
975{
976 return security_ops->inode_setsecctx(dentry, ctx, ctxlen);
977}
978EXPORT_SYMBOL(security_inode_setsecctx);
979
980int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
981{
982 return security_ops->inode_getsecctx(inode, ctx, ctxlen);
983}
984EXPORT_SYMBOL(security_inode_getsecctx);
985
986#ifdef CONFIG_SECURITY_NETWORK
987
988int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk)
989{
990 return security_ops->unix_stream_connect(sock, other, newsk);
991}
992EXPORT_SYMBOL(security_unix_stream_connect);
993
994int security_unix_may_send(struct socket *sock, struct socket *other)
995{
996 return security_ops->unix_may_send(sock, other);
997}
998EXPORT_SYMBOL(security_unix_may_send);
999
1000int security_socket_create(int family, int type, int protocol, int kern)
1001{
1002 return security_ops->socket_create(family, type, protocol, kern);
1003}
1004
1005int security_socket_post_create(struct socket *sock, int family,
1006 int type, int protocol, int kern)
1007{
1008 return security_ops->socket_post_create(sock, family, type,
1009 protocol, kern);
1010}
1011
1012int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
1013{
1014 return security_ops->socket_bind(sock, address, addrlen);
1015}
1016
1017int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
1018{
1019 return security_ops->socket_connect(sock, address, addrlen);
1020}
1021
1022int security_socket_listen(struct socket *sock, int backlog)
1023{
1024 return security_ops->socket_listen(sock, backlog);
1025}
1026
1027int security_socket_accept(struct socket *sock, struct socket *newsock)
1028{
1029 return security_ops->socket_accept(sock, newsock);
1030}
1031
1032int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1033{
1034 return security_ops->socket_sendmsg(sock, msg, size);
1035}
1036
1037int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1038 int size, int flags)
1039{
1040 return security_ops->socket_recvmsg(sock, msg, size, flags);
1041}
1042
1043int security_socket_getsockname(struct socket *sock)
1044{
1045 return security_ops->socket_getsockname(sock);
1046}
1047
1048int security_socket_getpeername(struct socket *sock)
1049{
1050 return security_ops->socket_getpeername(sock);
1051}
1052
1053int security_socket_getsockopt(struct socket *sock, int level, int optname)
1054{
1055 return security_ops->socket_getsockopt(sock, level, optname);
1056}
1057
1058int security_socket_setsockopt(struct socket *sock, int level, int optname)
1059{
1060 return security_ops->socket_setsockopt(sock, level, optname);
1061}
1062
1063int security_socket_shutdown(struct socket *sock, int how)
1064{
1065 return security_ops->socket_shutdown(sock, how);
1066}
1067
1068int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1069{
1070 return security_ops->socket_sock_rcv_skb(sk, skb);
1071}
1072EXPORT_SYMBOL(security_sock_rcv_skb);
1073
1074int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1075 int __user *optlen, unsigned len)
1076{
1077 return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
1078}
1079
1080int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1081{
1082 return security_ops->socket_getpeersec_dgram(sock, skb, secid);
1083}
1084EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1085
1086int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1087{
1088 return security_ops->sk_alloc_security(sk, family, priority);
1089}
1090
1091void security_sk_free(struct sock *sk)
1092{
1093 security_ops->sk_free_security(sk);
1094}
1095
1096void security_sk_clone(const struct sock *sk, struct sock *newsk)
1097{
1098 security_ops->sk_clone_security(sk, newsk);
1099}
1100EXPORT_SYMBOL(security_sk_clone);
1101
1102void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1103{
1104 security_ops->sk_getsecid(sk, &fl->flowi_secid);
1105}
1106EXPORT_SYMBOL(security_sk_classify_flow);
1107
1108void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1109{
1110 security_ops->req_classify_flow(req, fl);
1111}
1112EXPORT_SYMBOL(security_req_classify_flow);
1113
1114void security_sock_graft(struct sock *sk, struct socket *parent)
1115{
1116 security_ops->sock_graft(sk, parent);
1117}
1118EXPORT_SYMBOL(security_sock_graft);
1119
1120int security_inet_conn_request(struct sock *sk,
1121 struct sk_buff *skb, struct request_sock *req)
1122{
1123 return security_ops->inet_conn_request(sk, skb, req);
1124}
1125EXPORT_SYMBOL(security_inet_conn_request);
1126
1127void security_inet_csk_clone(struct sock *newsk,
1128 const struct request_sock *req)
1129{
1130 security_ops->inet_csk_clone(newsk, req);
1131}
1132
1133void security_inet_conn_established(struct sock *sk,
1134 struct sk_buff *skb)
1135{
1136 security_ops->inet_conn_established(sk, skb);
1137}
1138
1139int security_secmark_relabel_packet(u32 secid)
1140{
1141 return security_ops->secmark_relabel_packet(secid);
1142}
1143EXPORT_SYMBOL(security_secmark_relabel_packet);
1144
1145void security_secmark_refcount_inc(void)
1146{
1147 security_ops->secmark_refcount_inc();
1148}
1149EXPORT_SYMBOL(security_secmark_refcount_inc);
1150
1151void security_secmark_refcount_dec(void)
1152{
1153 security_ops->secmark_refcount_dec();
1154}
1155EXPORT_SYMBOL(security_secmark_refcount_dec);
1156
1157int security_tun_dev_create(void)
1158{
1159 return security_ops->tun_dev_create();
1160}
1161EXPORT_SYMBOL(security_tun_dev_create);
1162
1163void security_tun_dev_post_create(struct sock *sk)
1164{
1165 return security_ops->tun_dev_post_create(sk);
1166}
1167EXPORT_SYMBOL(security_tun_dev_post_create);
1168
1169int security_tun_dev_attach(struct sock *sk)
1170{
1171 return security_ops->tun_dev_attach(sk);
1172}
1173EXPORT_SYMBOL(security_tun_dev_attach);
1174
1175#endif /* CONFIG_SECURITY_NETWORK */
1176
1177#ifdef CONFIG_SECURITY_NETWORK_XFRM
1178
1179int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
1180{
1181 return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx);
1182}
1183EXPORT_SYMBOL(security_xfrm_policy_alloc);
1184
1185int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1186 struct xfrm_sec_ctx **new_ctxp)
1187{
1188 return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
1189}
1190
1191void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1192{
1193 security_ops->xfrm_policy_free_security(ctx);
1194}
1195EXPORT_SYMBOL(security_xfrm_policy_free);
1196
1197int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1198{
1199 return security_ops->xfrm_policy_delete_security(ctx);
1200}
1201
1202int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
1203{
1204 return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
1205}
1206EXPORT_SYMBOL(security_xfrm_state_alloc);
1207
1208int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1209 struct xfrm_sec_ctx *polsec, u32 secid)
1210{
1211 if (!polsec)
1212 return 0;
1213 /*
1214 * We want the context to be taken from secid which is usually
1215 * from the sock.
1216 */
1217 return security_ops->xfrm_state_alloc_security(x, NULL, secid);
1218}
1219
1220int security_xfrm_state_delete(struct xfrm_state *x)
1221{
1222 return security_ops->xfrm_state_delete_security(x);
1223}
1224EXPORT_SYMBOL(security_xfrm_state_delete);
1225
1226void security_xfrm_state_free(struct xfrm_state *x)
1227{
1228 security_ops->xfrm_state_free_security(x);
1229}
1230
1231int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1232{
1233 return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
1234}
1235
1236int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1237 struct xfrm_policy *xp,
1238 const struct flowi *fl)
1239{
1240 return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
1241}
1242
1243int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1244{
1245 return security_ops->xfrm_decode_session(skb, secid, 1);
1246}
1247
1248void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1249{
1250 int rc = security_ops->xfrm_decode_session(skb, &fl->flowi_secid, 0);
1251
1252 BUG_ON(rc);
1253}
1254EXPORT_SYMBOL(security_skb_classify_flow);
1255
1256#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1257
1258#ifdef CONFIG_KEYS
1259
1260int security_key_alloc(struct key *key, const struct cred *cred,
1261 unsigned long flags)
1262{
1263 return security_ops->key_alloc(key, cred, flags);
1264}
1265
1266void security_key_free(struct key *key)
1267{
1268 security_ops->key_free(key);
1269}
1270
1271int security_key_permission(key_ref_t key_ref,
1272 const struct cred *cred, key_perm_t perm)
1273{
1274 return security_ops->key_permission(key_ref, cred, perm);
1275}
1276
1277int security_key_getsecurity(struct key *key, char **_buffer)
1278{
1279 return security_ops->key_getsecurity(key, _buffer);
1280}
1281
1282#endif /* CONFIG_KEYS */
1283
1284#ifdef CONFIG_AUDIT
1285
1286int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1287{
1288 return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
1289}
1290
1291int security_audit_rule_known(struct audit_krule *krule)
1292{
1293 return security_ops->audit_rule_known(krule);
1294}
1295
1296void security_audit_rule_free(void *lsmrule)
1297{
1298 security_ops->audit_rule_free(lsmrule);
1299}
1300
1301int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1302 struct audit_context *actx)
1303{
1304 return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
1305}
1306
1307#endif /* CONFIG_AUDIT */