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15#include <linux/capability.h>
16#include <linux/dcache.h>
17#include <linux/module.h>
18#include <linux/init.h>
19#include <linux/kernel.h>
20#include <linux/lsm_hooks.h>
21#include <linux/integrity.h>
22#include <linux/ima.h>
23#include <linux/evm.h>
24#include <linux/fsnotify.h>
25#include <linux/mman.h>
26#include <linux/mount.h>
27#include <linux/personality.h>
28#include <linux/backing-dev.h>
29#include <linux/string.h>
30#include <net/flow.h>
31
32#define MAX_LSM_EVM_XATTR 2
33
34
35#define SECURITY_NAME_MAX 10
36
37struct security_hook_heads security_hook_heads __lsm_ro_after_init;
38static ATOMIC_NOTIFIER_HEAD(lsm_notifier_chain);
39
40char *lsm_names;
41
42static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
43 CONFIG_DEFAULT_SECURITY;
44
45static void __init do_security_initcalls(void)
46{
47 initcall_t *call;
48 call = __security_initcall_start;
49 while (call < __security_initcall_end) {
50 (*call) ();
51 call++;
52 }
53}
54
55
56
57
58
59
60int __init security_init(void)
61{
62 int i;
63 struct list_head *list = (struct list_head *) &security_hook_heads;
64
65 for (i = 0; i < sizeof(security_hook_heads) / sizeof(struct list_head);
66 i++)
67 INIT_LIST_HEAD(&list[i]);
68 pr_info("Security Framework initialized\n");
69
70
71
72
73 capability_add_hooks();
74 yama_add_hooks();
75 loadpin_add_hooks();
76
77
78
79
80 do_security_initcalls();
81
82 return 0;
83}
84
85
86static int __init choose_lsm(char *str)
87{
88 strncpy(chosen_lsm, str, SECURITY_NAME_MAX);
89 return 1;
90}
91__setup("security=", choose_lsm);
92
93static bool match_last_lsm(const char *list, const char *lsm)
94{
95 const char *last;
96
97 if (WARN_ON(!list || !lsm))
98 return false;
99 last = strrchr(list, ',');
100 if (last)
101
102 last++;
103 else
104 last = list;
105 return !strcmp(last, lsm);
106}
107
108static int lsm_append(char *new, char **result)
109{
110 char *cp;
111
112 if (*result == NULL) {
113 *result = kstrdup(new, GFP_KERNEL);
114 } else {
115
116 if (match_last_lsm(*result, new))
117 return 0;
118 cp = kasprintf(GFP_KERNEL, "%s,%s", *result, new);
119 if (cp == NULL)
120 return -ENOMEM;
121 kfree(*result);
122 *result = cp;
123 }
124 return 0;
125}
126
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143
144
145int __init security_module_enable(const char *module)
146{
147 return !strcmp(module, chosen_lsm);
148}
149
150
151
152
153
154
155
156
157
158void __init security_add_hooks(struct security_hook_list *hooks, int count,
159 char *lsm)
160{
161 int i;
162
163 for (i = 0; i < count; i++) {
164 hooks[i].lsm = lsm;
165 list_add_tail_rcu(&hooks[i].list, hooks[i].head);
166 }
167 if (lsm_append(lsm, &lsm_names) < 0)
168 panic("%s - Cannot get early memory.\n", __func__);
169}
170
171int call_lsm_notifier(enum lsm_event event, void *data)
172{
173 return atomic_notifier_call_chain(&lsm_notifier_chain, event, data);
174}
175EXPORT_SYMBOL(call_lsm_notifier);
176
177int register_lsm_notifier(struct notifier_block *nb)
178{
179 return atomic_notifier_chain_register(&lsm_notifier_chain, nb);
180}
181EXPORT_SYMBOL(register_lsm_notifier);
182
183int unregister_lsm_notifier(struct notifier_block *nb)
184{
185 return atomic_notifier_chain_unregister(&lsm_notifier_chain, nb);
186}
187EXPORT_SYMBOL(unregister_lsm_notifier);
188
189
190
191
192
193
194
195
196
197
198
199#define call_void_hook(FUNC, ...) \
200 do { \
201 struct security_hook_list *P; \
202 \
203 list_for_each_entry(P, &security_hook_heads.FUNC, list) \
204 P->hook.FUNC(__VA_ARGS__); \
205 } while (0)
206
207#define call_int_hook(FUNC, IRC, ...) ({ \
208 int RC = IRC; \
209 do { \
210 struct security_hook_list *P; \
211 \
212 list_for_each_entry(P, &security_hook_heads.FUNC, list) { \
213 RC = P->hook.FUNC(__VA_ARGS__); \
214 if (RC != 0) \
215 break; \
216 } \
217 } while (0); \
218 RC; \
219})
220
221
222
223int security_binder_set_context_mgr(struct task_struct *mgr)
224{
225 return call_int_hook(binder_set_context_mgr, 0, mgr);
226}
227
228int security_binder_transaction(struct task_struct *from,
229 struct task_struct *to)
230{
231 return call_int_hook(binder_transaction, 0, from, to);
232}
233
234int security_binder_transfer_binder(struct task_struct *from,
235 struct task_struct *to)
236{
237 return call_int_hook(binder_transfer_binder, 0, from, to);
238}
239
240int security_binder_transfer_file(struct task_struct *from,
241 struct task_struct *to, struct file *file)
242{
243 return call_int_hook(binder_transfer_file, 0, from, to, file);
244}
245
246int security_ptrace_access_check(struct task_struct *child, unsigned int mode)
247{
248 return call_int_hook(ptrace_access_check, 0, child, mode);
249}
250
251int security_ptrace_traceme(struct task_struct *parent)
252{
253 return call_int_hook(ptrace_traceme, 0, parent);
254}
255
256int security_capget(struct task_struct *target,
257 kernel_cap_t *effective,
258 kernel_cap_t *inheritable,
259 kernel_cap_t *permitted)
260{
261 return call_int_hook(capget, 0, target,
262 effective, inheritable, permitted);
263}
264
265int security_capset(struct cred *new, const struct cred *old,
266 const kernel_cap_t *effective,
267 const kernel_cap_t *inheritable,
268 const kernel_cap_t *permitted)
269{
270 return call_int_hook(capset, 0, new, old,
271 effective, inheritable, permitted);
272}
273
274int security_capable(const struct cred *cred, struct user_namespace *ns,
275 int cap)
276{
277 return call_int_hook(capable, 0, cred, ns, cap, SECURITY_CAP_AUDIT);
278}
279
280int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
281 int cap)
282{
283 return call_int_hook(capable, 0, cred, ns, cap, SECURITY_CAP_NOAUDIT);
284}
285
286int security_quotactl(int cmds, int type, int id, struct super_block *sb)
287{
288 return call_int_hook(quotactl, 0, cmds, type, id, sb);
289}
290
291int security_quota_on(struct dentry *dentry)
292{
293 return call_int_hook(quota_on, 0, dentry);
294}
295
296int security_syslog(int type)
297{
298 return call_int_hook(syslog, 0, type);
299}
300
301int security_settime64(const struct timespec64 *ts, const struct timezone *tz)
302{
303 return call_int_hook(settime, 0, ts, tz);
304}
305
306int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
307{
308 struct security_hook_list *hp;
309 int cap_sys_admin = 1;
310 int rc;
311
312
313
314
315
316
317
318
319 list_for_each_entry(hp, &security_hook_heads.vm_enough_memory, list) {
320 rc = hp->hook.vm_enough_memory(mm, pages);
321 if (rc <= 0) {
322 cap_sys_admin = 0;
323 break;
324 }
325 }
326 return __vm_enough_memory(mm, pages, cap_sys_admin);
327}
328
329int security_bprm_set_creds(struct linux_binprm *bprm)
330{
331 return call_int_hook(bprm_set_creds, 0, bprm);
332}
333
334int security_bprm_check(struct linux_binprm *bprm)
335{
336 int ret;
337
338 ret = call_int_hook(bprm_check_security, 0, bprm);
339 if (ret)
340 return ret;
341 return ima_bprm_check(bprm);
342}
343
344void security_bprm_committing_creds(struct linux_binprm *bprm)
345{
346 call_void_hook(bprm_committing_creds, bprm);
347}
348
349void security_bprm_committed_creds(struct linux_binprm *bprm)
350{
351 call_void_hook(bprm_committed_creds, bprm);
352}
353
354int security_sb_alloc(struct super_block *sb)
355{
356 return call_int_hook(sb_alloc_security, 0, sb);
357}
358
359void security_sb_free(struct super_block *sb)
360{
361 call_void_hook(sb_free_security, sb);
362}
363
364int security_sb_copy_data(char *orig, char *copy)
365{
366 return call_int_hook(sb_copy_data, 0, orig, copy);
367}
368EXPORT_SYMBOL(security_sb_copy_data);
369
370int security_sb_remount(struct super_block *sb, void *data)
371{
372 return call_int_hook(sb_remount, 0, sb, data);
373}
374
375int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
376{
377 return call_int_hook(sb_kern_mount, 0, sb, flags, data);
378}
379
380int security_sb_show_options(struct seq_file *m, struct super_block *sb)
381{
382 return call_int_hook(sb_show_options, 0, m, sb);
383}
384
385int security_sb_statfs(struct dentry *dentry)
386{
387 return call_int_hook(sb_statfs, 0, dentry);
388}
389
390int security_sb_mount(const char *dev_name, const struct path *path,
391 const char *type, unsigned long flags, void *data)
392{
393 return call_int_hook(sb_mount, 0, dev_name, path, type, flags, data);
394}
395
396int security_sb_umount(struct vfsmount *mnt, int flags)
397{
398 return call_int_hook(sb_umount, 0, mnt, flags);
399}
400
401int security_sb_pivotroot(const struct path *old_path, const struct path *new_path)
402{
403 return call_int_hook(sb_pivotroot, 0, old_path, new_path);
404}
405
406int security_sb_set_mnt_opts(struct super_block *sb,
407 struct security_mnt_opts *opts,
408 unsigned long kern_flags,
409 unsigned long *set_kern_flags)
410{
411 return call_int_hook(sb_set_mnt_opts,
412 opts->num_mnt_opts ? -EOPNOTSUPP : 0, sb,
413 opts, kern_flags, set_kern_flags);
414}
415EXPORT_SYMBOL(security_sb_set_mnt_opts);
416
417int security_sb_clone_mnt_opts(const struct super_block *oldsb,
418 struct super_block *newsb,
419 unsigned long kern_flags,
420 unsigned long *set_kern_flags)
421{
422 return call_int_hook(sb_clone_mnt_opts, 0, oldsb, newsb,
423 kern_flags, set_kern_flags);
424}
425EXPORT_SYMBOL(security_sb_clone_mnt_opts);
426
427int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
428{
429 return call_int_hook(sb_parse_opts_str, 0, options, opts);
430}
431EXPORT_SYMBOL(security_sb_parse_opts_str);
432
433int security_inode_alloc(struct inode *inode)
434{
435 inode->i_security = NULL;
436 return call_int_hook(inode_alloc_security, 0, inode);
437}
438
439void security_inode_free(struct inode *inode)
440{
441 integrity_inode_free(inode);
442 call_void_hook(inode_free_security, inode);
443}
444
445int security_dentry_init_security(struct dentry *dentry, int mode,
446 const struct qstr *name, void **ctx,
447 u32 *ctxlen)
448{
449 return call_int_hook(dentry_init_security, -EOPNOTSUPP, dentry, mode,
450 name, ctx, ctxlen);
451}
452EXPORT_SYMBOL(security_dentry_init_security);
453
454int security_dentry_create_files_as(struct dentry *dentry, int mode,
455 struct qstr *name,
456 const struct cred *old, struct cred *new)
457{
458 return call_int_hook(dentry_create_files_as, 0, dentry, mode,
459 name, old, new);
460}
461EXPORT_SYMBOL(security_dentry_create_files_as);
462
463int security_inode_init_security(struct inode *inode, struct inode *dir,
464 const struct qstr *qstr,
465 const initxattrs initxattrs, void *fs_data)
466{
467 struct xattr new_xattrs[MAX_LSM_EVM_XATTR + 1];
468 struct xattr *lsm_xattr, *evm_xattr, *xattr;
469 int ret;
470
471 if (unlikely(IS_PRIVATE(inode)))
472 return 0;
473
474 if (!initxattrs)
475 return call_int_hook(inode_init_security, -EOPNOTSUPP, inode,
476 dir, qstr, NULL, NULL, NULL);
477 memset(new_xattrs, 0, sizeof(new_xattrs));
478 lsm_xattr = new_xattrs;
479 ret = call_int_hook(inode_init_security, -EOPNOTSUPP, inode, dir, qstr,
480 &lsm_xattr->name,
481 &lsm_xattr->value,
482 &lsm_xattr->value_len);
483 if (ret)
484 goto out;
485
486 evm_xattr = lsm_xattr + 1;
487 ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr);
488 if (ret)
489 goto out;
490 ret = initxattrs(inode, new_xattrs, fs_data);
491out:
492 for (xattr = new_xattrs; xattr->value != NULL; xattr++)
493 kfree(xattr->value);
494 return (ret == -EOPNOTSUPP) ? 0 : ret;
495}
496EXPORT_SYMBOL(security_inode_init_security);
497
498int security_old_inode_init_security(struct inode *inode, struct inode *dir,
499 const struct qstr *qstr, const char **name,
500 void **value, size_t *len)
501{
502 if (unlikely(IS_PRIVATE(inode)))
503 return -EOPNOTSUPP;
504 return call_int_hook(inode_init_security, -EOPNOTSUPP, inode, dir,
505 qstr, name, value, len);
506}
507EXPORT_SYMBOL(security_old_inode_init_security);
508
509#ifdef CONFIG_SECURITY_PATH
510int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
511 unsigned int dev)
512{
513 if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
514 return 0;
515 return call_int_hook(path_mknod, 0, dir, dentry, mode, dev);
516}
517EXPORT_SYMBOL(security_path_mknod);
518
519int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode)
520{
521 if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
522 return 0;
523 return call_int_hook(path_mkdir, 0, dir, dentry, mode);
524}
525EXPORT_SYMBOL(security_path_mkdir);
526
527int security_path_rmdir(const struct path *dir, struct dentry *dentry)
528{
529 if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
530 return 0;
531 return call_int_hook(path_rmdir, 0, dir, dentry);
532}
533
534int security_path_unlink(const struct path *dir, struct dentry *dentry)
535{
536 if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
537 return 0;
538 return call_int_hook(path_unlink, 0, dir, dentry);
539}
540EXPORT_SYMBOL(security_path_unlink);
541
542int security_path_symlink(const struct path *dir, struct dentry *dentry,
543 const char *old_name)
544{
545 if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
546 return 0;
547 return call_int_hook(path_symlink, 0, dir, dentry, old_name);
548}
549
550int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
551 struct dentry *new_dentry)
552{
553 if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry))))
554 return 0;
555 return call_int_hook(path_link, 0, old_dentry, new_dir, new_dentry);
556}
557
558int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
559 const struct path *new_dir, struct dentry *new_dentry,
560 unsigned int flags)
561{
562 if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) ||
563 (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry)))))
564 return 0;
565
566 if (flags & RENAME_EXCHANGE) {
567 int err = call_int_hook(path_rename, 0, new_dir, new_dentry,
568 old_dir, old_dentry);
569 if (err)
570 return err;
571 }
572
573 return call_int_hook(path_rename, 0, old_dir, old_dentry, new_dir,
574 new_dentry);
575}
576EXPORT_SYMBOL(security_path_rename);
577
578int security_path_truncate(const struct path *path)
579{
580 if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
581 return 0;
582 return call_int_hook(path_truncate, 0, path);
583}
584
585int security_path_chmod(const struct path *path, umode_t mode)
586{
587 if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
588 return 0;
589 return call_int_hook(path_chmod, 0, path, mode);
590}
591
592int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
593{
594 if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
595 return 0;
596 return call_int_hook(path_chown, 0, path, uid, gid);
597}
598
599int security_path_chroot(const struct path *path)
600{
601 return call_int_hook(path_chroot, 0, path);
602}
603#endif
604
605int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode)
606{
607 if (unlikely(IS_PRIVATE(dir)))
608 return 0;
609 return call_int_hook(inode_create, 0, dir, dentry, mode);
610}
611EXPORT_SYMBOL_GPL(security_inode_create);
612
613int security_inode_link(struct dentry *old_dentry, struct inode *dir,
614 struct dentry *new_dentry)
615{
616 if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry))))
617 return 0;
618 return call_int_hook(inode_link, 0, old_dentry, dir, new_dentry);
619}
620
621int security_inode_unlink(struct inode *dir, struct dentry *dentry)
622{
623 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
624 return 0;
625 return call_int_hook(inode_unlink, 0, dir, dentry);
626}
627
628int security_inode_symlink(struct inode *dir, struct dentry *dentry,
629 const char *old_name)
630{
631 if (unlikely(IS_PRIVATE(dir)))
632 return 0;
633 return call_int_hook(inode_symlink, 0, dir, dentry, old_name);
634}
635
636int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
637{
638 if (unlikely(IS_PRIVATE(dir)))
639 return 0;
640 return call_int_hook(inode_mkdir, 0, dir, dentry, mode);
641}
642EXPORT_SYMBOL_GPL(security_inode_mkdir);
643
644int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
645{
646 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
647 return 0;
648 return call_int_hook(inode_rmdir, 0, dir, dentry);
649}
650
651int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
652{
653 if (unlikely(IS_PRIVATE(dir)))
654 return 0;
655 return call_int_hook(inode_mknod, 0, dir, dentry, mode, dev);
656}
657
658int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
659 struct inode *new_dir, struct dentry *new_dentry,
660 unsigned int flags)
661{
662 if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) ||
663 (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry)))))
664 return 0;
665
666 if (flags & RENAME_EXCHANGE) {
667 int err = call_int_hook(inode_rename, 0, new_dir, new_dentry,
668 old_dir, old_dentry);
669 if (err)
670 return err;
671 }
672
673 return call_int_hook(inode_rename, 0, old_dir, old_dentry,
674 new_dir, new_dentry);
675}
676
677int security_inode_readlink(struct dentry *dentry)
678{
679 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
680 return 0;
681 return call_int_hook(inode_readlink, 0, dentry);
682}
683
684int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
685 bool rcu)
686{
687 if (unlikely(IS_PRIVATE(inode)))
688 return 0;
689 return call_int_hook(inode_follow_link, 0, dentry, inode, rcu);
690}
691
692int security_inode_permission(struct inode *inode, int mask)
693{
694 if (unlikely(IS_PRIVATE(inode)))
695 return 0;
696 return call_int_hook(inode_permission, 0, inode, mask);
697}
698
699int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
700{
701 int ret;
702
703 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
704 return 0;
705 ret = call_int_hook(inode_setattr, 0, dentry, attr);
706 if (ret)
707 return ret;
708 return evm_inode_setattr(dentry, attr);
709}
710EXPORT_SYMBOL_GPL(security_inode_setattr);
711
712int security_inode_getattr(const struct path *path)
713{
714 if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
715 return 0;
716 return call_int_hook(inode_getattr, 0, path);
717}
718
719int security_inode_setxattr(struct dentry *dentry, const char *name,
720 const void *value, size_t size, int flags)
721{
722 int ret;
723
724 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
725 return 0;
726
727
728
729
730 ret = call_int_hook(inode_setxattr, 1, dentry, name, value, size,
731 flags);
732
733 if (ret == 1)
734 ret = cap_inode_setxattr(dentry, name, value, size, flags);
735 if (ret)
736 return ret;
737 ret = ima_inode_setxattr(dentry, name, value, size);
738 if (ret)
739 return ret;
740 return evm_inode_setxattr(dentry, name, value, size);
741}
742
743void security_inode_post_setxattr(struct dentry *dentry, const char *name,
744 const void *value, size_t size, int flags)
745{
746 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
747 return;
748 call_void_hook(inode_post_setxattr, dentry, name, value, size, flags);
749 evm_inode_post_setxattr(dentry, name, value, size);
750}
751
752int security_inode_getxattr(struct dentry *dentry, const char *name)
753{
754 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
755 return 0;
756 return call_int_hook(inode_getxattr, 0, dentry, name);
757}
758
759int security_inode_listxattr(struct dentry *dentry)
760{
761 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
762 return 0;
763 return call_int_hook(inode_listxattr, 0, dentry);
764}
765
766int security_inode_removexattr(struct dentry *dentry, const char *name)
767{
768 int ret;
769
770 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
771 return 0;
772
773
774
775
776 ret = call_int_hook(inode_removexattr, 1, dentry, name);
777 if (ret == 1)
778 ret = cap_inode_removexattr(dentry, name);
779 if (ret)
780 return ret;
781 ret = ima_inode_removexattr(dentry, name);
782 if (ret)
783 return ret;
784 return evm_inode_removexattr(dentry, name);
785}
786
787int security_inode_need_killpriv(struct dentry *dentry)
788{
789 return call_int_hook(inode_need_killpriv, 0, dentry);
790}
791
792int security_inode_killpriv(struct dentry *dentry)
793{
794 return call_int_hook(inode_killpriv, 0, dentry);
795}
796
797int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
798{
799 struct security_hook_list *hp;
800 int rc;
801
802 if (unlikely(IS_PRIVATE(inode)))
803 return -EOPNOTSUPP;
804
805
806
807 list_for_each_entry(hp, &security_hook_heads.inode_getsecurity, list) {
808 rc = hp->hook.inode_getsecurity(inode, name, buffer, alloc);
809 if (rc != -EOPNOTSUPP)
810 return rc;
811 }
812 return -EOPNOTSUPP;
813}
814
815int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
816{
817 struct security_hook_list *hp;
818 int rc;
819
820 if (unlikely(IS_PRIVATE(inode)))
821 return -EOPNOTSUPP;
822
823
824
825 list_for_each_entry(hp, &security_hook_heads.inode_setsecurity, list) {
826 rc = hp->hook.inode_setsecurity(inode, name, value, size,
827 flags);
828 if (rc != -EOPNOTSUPP)
829 return rc;
830 }
831 return -EOPNOTSUPP;
832}
833
834int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
835{
836 if (unlikely(IS_PRIVATE(inode)))
837 return 0;
838 return call_int_hook(inode_listsecurity, 0, inode, buffer, buffer_size);
839}
840EXPORT_SYMBOL(security_inode_listsecurity);
841
842void security_inode_getsecid(struct inode *inode, u32 *secid)
843{
844 call_void_hook(inode_getsecid, inode, secid);
845}
846
847int security_inode_copy_up(struct dentry *src, struct cred **new)
848{
849 return call_int_hook(inode_copy_up, 0, src, new);
850}
851EXPORT_SYMBOL(security_inode_copy_up);
852
853int security_inode_copy_up_xattr(const char *name)
854{
855 return call_int_hook(inode_copy_up_xattr, -EOPNOTSUPP, name);
856}
857EXPORT_SYMBOL(security_inode_copy_up_xattr);
858
859int security_file_permission(struct file *file, int mask)
860{
861 int ret;
862
863 ret = call_int_hook(file_permission, 0, file, mask);
864 if (ret)
865 return ret;
866
867 return fsnotify_perm(file, mask);
868}
869
870int security_file_alloc(struct file *file)
871{
872 return call_int_hook(file_alloc_security, 0, file);
873}
874
875void security_file_free(struct file *file)
876{
877 call_void_hook(file_free_security, file);
878}
879
880int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
881{
882 return call_int_hook(file_ioctl, 0, file, cmd, arg);
883}
884
885static inline unsigned long mmap_prot(struct file *file, unsigned long prot)
886{
887
888
889
890
891 if ((prot & (PROT_READ | PROT_EXEC)) != PROT_READ)
892 return prot;
893 if (!(current->personality & READ_IMPLIES_EXEC))
894 return prot;
895
896
897
898 if (!file)
899 return prot | PROT_EXEC;
900
901
902
903
904 if (!path_noexec(&file->f_path)) {
905#ifndef CONFIG_MMU
906 if (file->f_op->mmap_capabilities) {
907 unsigned caps = file->f_op->mmap_capabilities(file);
908 if (!(caps & NOMMU_MAP_EXEC))
909 return prot;
910 }
911#endif
912 return prot | PROT_EXEC;
913 }
914
915 return prot;
916}
917
918int security_mmap_file(struct file *file, unsigned long prot,
919 unsigned long flags)
920{
921 int ret;
922 ret = call_int_hook(mmap_file, 0, file, prot,
923 mmap_prot(file, prot), flags);
924 if (ret)
925 return ret;
926 return ima_file_mmap(file, prot);
927}
928
929int security_mmap_addr(unsigned long addr)
930{
931 return call_int_hook(mmap_addr, 0, addr);
932}
933
934int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
935 unsigned long prot)
936{
937 return call_int_hook(file_mprotect, 0, vma, reqprot, prot);
938}
939
940int security_file_lock(struct file *file, unsigned int cmd)
941{
942 return call_int_hook(file_lock, 0, file, cmd);
943}
944
945int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
946{
947 return call_int_hook(file_fcntl, 0, file, cmd, arg);
948}
949
950void security_file_set_fowner(struct file *file)
951{
952 call_void_hook(file_set_fowner, file);
953}
954
955int security_file_send_sigiotask(struct task_struct *tsk,
956 struct fown_struct *fown, int sig)
957{
958 return call_int_hook(file_send_sigiotask, 0, tsk, fown, sig);
959}
960
961int security_file_receive(struct file *file)
962{
963 return call_int_hook(file_receive, 0, file);
964}
965
966int security_file_open(struct file *file, const struct cred *cred)
967{
968 int ret;
969
970 ret = call_int_hook(file_open, 0, file, cred);
971 if (ret)
972 return ret;
973
974 return fsnotify_perm(file, MAY_OPEN);
975}
976
977int security_task_alloc(struct task_struct *task, unsigned long clone_flags)
978{
979 return call_int_hook(task_alloc, 0, task, clone_flags);
980}
981
982void security_task_free(struct task_struct *task)
983{
984 call_void_hook(task_free, task);
985}
986
987int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
988{
989 return call_int_hook(cred_alloc_blank, 0, cred, gfp);
990}
991
992void security_cred_free(struct cred *cred)
993{
994 call_void_hook(cred_free, cred);
995}
996
997int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
998{
999 return call_int_hook(cred_prepare, 0, new, old, gfp);
1000}
1001
1002void security_transfer_creds(struct cred *new, const struct cred *old)
1003{
1004 call_void_hook(cred_transfer, new, old);
1005}
1006
1007int security_kernel_act_as(struct cred *new, u32 secid)
1008{
1009 return call_int_hook(kernel_act_as, 0, new, secid);
1010}
1011
1012int security_kernel_create_files_as(struct cred *new, struct inode *inode)
1013{
1014 return call_int_hook(kernel_create_files_as, 0, new, inode);
1015}
1016
1017int security_kernel_module_request(char *kmod_name)
1018{
1019 return call_int_hook(kernel_module_request, 0, kmod_name);
1020}
1021
1022int security_kernel_read_file(struct file *file, enum kernel_read_file_id id)
1023{
1024 int ret;
1025
1026 ret = call_int_hook(kernel_read_file, 0, file, id);
1027 if (ret)
1028 return ret;
1029 return ima_read_file(file, id);
1030}
1031EXPORT_SYMBOL_GPL(security_kernel_read_file);
1032
1033int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
1034 enum kernel_read_file_id id)
1035{
1036 int ret;
1037
1038 ret = call_int_hook(kernel_post_read_file, 0, file, buf, size, id);
1039 if (ret)
1040 return ret;
1041 return ima_post_read_file(file, buf, size, id);
1042}
1043EXPORT_SYMBOL_GPL(security_kernel_post_read_file);
1044
1045int security_task_fix_setuid(struct cred *new, const struct cred *old,
1046 int flags)
1047{
1048 return call_int_hook(task_fix_setuid, 0, new, old, flags);
1049}
1050
1051int security_task_setpgid(struct task_struct *p, pid_t pgid)
1052{
1053 return call_int_hook(task_setpgid, 0, p, pgid);
1054}
1055
1056int security_task_getpgid(struct task_struct *p)
1057{
1058 return call_int_hook(task_getpgid, 0, p);
1059}
1060
1061int security_task_getsid(struct task_struct *p)
1062{
1063 return call_int_hook(task_getsid, 0, p);
1064}
1065
1066void security_task_getsecid(struct task_struct *p, u32 *secid)
1067{
1068 *secid = 0;
1069 call_void_hook(task_getsecid, p, secid);
1070}
1071EXPORT_SYMBOL(security_task_getsecid);
1072
1073int security_task_setnice(struct task_struct *p, int nice)
1074{
1075 return call_int_hook(task_setnice, 0, p, nice);
1076}
1077
1078int security_task_setioprio(struct task_struct *p, int ioprio)
1079{
1080 return call_int_hook(task_setioprio, 0, p, ioprio);
1081}
1082
1083int security_task_getioprio(struct task_struct *p)
1084{
1085 return call_int_hook(task_getioprio, 0, p);
1086}
1087
1088int security_task_prlimit(const struct cred *cred, const struct cred *tcred,
1089 unsigned int flags)
1090{
1091 return call_int_hook(task_prlimit, 0, cred, tcred, flags);
1092}
1093
1094int security_task_setrlimit(struct task_struct *p, unsigned int resource,
1095 struct rlimit *new_rlim)
1096{
1097 return call_int_hook(task_setrlimit, 0, p, resource, new_rlim);
1098}
1099
1100int security_task_setscheduler(struct task_struct *p)
1101{
1102 return call_int_hook(task_setscheduler, 0, p);
1103}
1104
1105int security_task_getscheduler(struct task_struct *p)
1106{
1107 return call_int_hook(task_getscheduler, 0, p);
1108}
1109
1110int security_task_movememory(struct task_struct *p)
1111{
1112 return call_int_hook(task_movememory, 0, p);
1113}
1114
1115int security_task_kill(struct task_struct *p, struct siginfo *info,
1116 int sig, u32 secid)
1117{
1118 return call_int_hook(task_kill, 0, p, info, sig, secid);
1119}
1120
1121int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
1122 unsigned long arg4, unsigned long arg5)
1123{
1124 int thisrc;
1125 int rc = -ENOSYS;
1126 struct security_hook_list *hp;
1127
1128 list_for_each_entry(hp, &security_hook_heads.task_prctl, list) {
1129 thisrc = hp->hook.task_prctl(option, arg2, arg3, arg4, arg5);
1130 if (thisrc != -ENOSYS) {
1131 rc = thisrc;
1132 if (thisrc != 0)
1133 break;
1134 }
1135 }
1136 return rc;
1137}
1138
1139void security_task_to_inode(struct task_struct *p, struct inode *inode)
1140{
1141 call_void_hook(task_to_inode, p, inode);
1142}
1143
1144int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
1145{
1146 return call_int_hook(ipc_permission, 0, ipcp, flag);
1147}
1148
1149void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
1150{
1151 *secid = 0;
1152 call_void_hook(ipc_getsecid, ipcp, secid);
1153}
1154
1155int security_msg_msg_alloc(struct msg_msg *msg)
1156{
1157 return call_int_hook(msg_msg_alloc_security, 0, msg);
1158}
1159
1160void security_msg_msg_free(struct msg_msg *msg)
1161{
1162 call_void_hook(msg_msg_free_security, msg);
1163}
1164
1165int security_msg_queue_alloc(struct msg_queue *msq)
1166{
1167 return call_int_hook(msg_queue_alloc_security, 0, msq);
1168}
1169
1170void security_msg_queue_free(struct msg_queue *msq)
1171{
1172 call_void_hook(msg_queue_free_security, msq);
1173}
1174
1175int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
1176{
1177 return call_int_hook(msg_queue_associate, 0, msq, msqflg);
1178}
1179
1180int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
1181{
1182 return call_int_hook(msg_queue_msgctl, 0, msq, cmd);
1183}
1184
1185int security_msg_queue_msgsnd(struct msg_queue *msq,
1186 struct msg_msg *msg, int msqflg)
1187{
1188 return call_int_hook(msg_queue_msgsnd, 0, msq, msg, msqflg);
1189}
1190
1191int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
1192 struct task_struct *target, long type, int mode)
1193{
1194 return call_int_hook(msg_queue_msgrcv, 0, msq, msg, target, type, mode);
1195}
1196
1197int security_shm_alloc(struct shmid_kernel *shp)
1198{
1199 return call_int_hook(shm_alloc_security, 0, shp);
1200}
1201
1202void security_shm_free(struct shmid_kernel *shp)
1203{
1204 call_void_hook(shm_free_security, shp);
1205}
1206
1207int security_shm_associate(struct shmid_kernel *shp, int shmflg)
1208{
1209 return call_int_hook(shm_associate, 0, shp, shmflg);
1210}
1211
1212int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
1213{
1214 return call_int_hook(shm_shmctl, 0, shp, cmd);
1215}
1216
1217int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
1218{
1219 return call_int_hook(shm_shmat, 0, shp, shmaddr, shmflg);
1220}
1221
1222int security_sem_alloc(struct sem_array *sma)
1223{
1224 return call_int_hook(sem_alloc_security, 0, sma);
1225}
1226
1227void security_sem_free(struct sem_array *sma)
1228{
1229 call_void_hook(sem_free_security, sma);
1230}
1231
1232int security_sem_associate(struct sem_array *sma, int semflg)
1233{
1234 return call_int_hook(sem_associate, 0, sma, semflg);
1235}
1236
1237int security_sem_semctl(struct sem_array *sma, int cmd)
1238{
1239 return call_int_hook(sem_semctl, 0, sma, cmd);
1240}
1241
1242int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1243 unsigned nsops, int alter)
1244{
1245 return call_int_hook(sem_semop, 0, sma, sops, nsops, alter);
1246}
1247
1248void security_d_instantiate(struct dentry *dentry, struct inode *inode)
1249{
1250 if (unlikely(inode && IS_PRIVATE(inode)))
1251 return;
1252 call_void_hook(d_instantiate, dentry, inode);
1253}
1254EXPORT_SYMBOL(security_d_instantiate);
1255
1256int security_getprocattr(struct task_struct *p, char *name, char **value)
1257{
1258 return call_int_hook(getprocattr, -EINVAL, p, name, value);
1259}
1260
1261int security_setprocattr(const char *name, void *value, size_t size)
1262{
1263 return call_int_hook(setprocattr, -EINVAL, name, value, size);
1264}
1265
1266int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1267{
1268 return call_int_hook(netlink_send, 0, sk, skb);
1269}
1270
1271int security_ismaclabel(const char *name)
1272{
1273 return call_int_hook(ismaclabel, 0, name);
1274}
1275EXPORT_SYMBOL(security_ismaclabel);
1276
1277int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1278{
1279 return call_int_hook(secid_to_secctx, -EOPNOTSUPP, secid, secdata,
1280 seclen);
1281}
1282EXPORT_SYMBOL(security_secid_to_secctx);
1283
1284int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
1285{
1286 *secid = 0;
1287 return call_int_hook(secctx_to_secid, 0, secdata, seclen, secid);
1288}
1289EXPORT_SYMBOL(security_secctx_to_secid);
1290
1291void security_release_secctx(char *secdata, u32 seclen)
1292{
1293 call_void_hook(release_secctx, secdata, seclen);
1294}
1295EXPORT_SYMBOL(security_release_secctx);
1296
1297void security_inode_invalidate_secctx(struct inode *inode)
1298{
1299 call_void_hook(inode_invalidate_secctx, inode);
1300}
1301EXPORT_SYMBOL(security_inode_invalidate_secctx);
1302
1303int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1304{
1305 return call_int_hook(inode_notifysecctx, 0, inode, ctx, ctxlen);
1306}
1307EXPORT_SYMBOL(security_inode_notifysecctx);
1308
1309int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1310{
1311 return call_int_hook(inode_setsecctx, 0, dentry, ctx, ctxlen);
1312}
1313EXPORT_SYMBOL(security_inode_setsecctx);
1314
1315int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1316{
1317 return call_int_hook(inode_getsecctx, -EOPNOTSUPP, inode, ctx, ctxlen);
1318}
1319EXPORT_SYMBOL(security_inode_getsecctx);
1320
1321#ifdef CONFIG_SECURITY_NETWORK
1322
1323int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk)
1324{
1325 return call_int_hook(unix_stream_connect, 0, sock, other, newsk);
1326}
1327EXPORT_SYMBOL(security_unix_stream_connect);
1328
1329int security_unix_may_send(struct socket *sock, struct socket *other)
1330{
1331 return call_int_hook(unix_may_send, 0, sock, other);
1332}
1333EXPORT_SYMBOL(security_unix_may_send);
1334
1335int security_socket_create(int family, int type, int protocol, int kern)
1336{
1337 return call_int_hook(socket_create, 0, family, type, protocol, kern);
1338}
1339
1340int security_socket_post_create(struct socket *sock, int family,
1341 int type, int protocol, int kern)
1342{
1343 return call_int_hook(socket_post_create, 0, sock, family, type,
1344 protocol, kern);
1345}
1346
1347int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
1348{
1349 return call_int_hook(socket_bind, 0, sock, address, addrlen);
1350}
1351
1352int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
1353{
1354 return call_int_hook(socket_connect, 0, sock, address, addrlen);
1355}
1356
1357int security_socket_listen(struct socket *sock, int backlog)
1358{
1359 return call_int_hook(socket_listen, 0, sock, backlog);
1360}
1361
1362int security_socket_accept(struct socket *sock, struct socket *newsock)
1363{
1364 return call_int_hook(socket_accept, 0, sock, newsock);
1365}
1366
1367int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1368{
1369 return call_int_hook(socket_sendmsg, 0, sock, msg, size);
1370}
1371
1372int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1373 int size, int flags)
1374{
1375 return call_int_hook(socket_recvmsg, 0, sock, msg, size, flags);
1376}
1377
1378int security_socket_getsockname(struct socket *sock)
1379{
1380 return call_int_hook(socket_getsockname, 0, sock);
1381}
1382
1383int security_socket_getpeername(struct socket *sock)
1384{
1385 return call_int_hook(socket_getpeername, 0, sock);
1386}
1387
1388int security_socket_getsockopt(struct socket *sock, int level, int optname)
1389{
1390 return call_int_hook(socket_getsockopt, 0, sock, level, optname);
1391}
1392
1393int security_socket_setsockopt(struct socket *sock, int level, int optname)
1394{
1395 return call_int_hook(socket_setsockopt, 0, sock, level, optname);
1396}
1397
1398int security_socket_shutdown(struct socket *sock, int how)
1399{
1400 return call_int_hook(socket_shutdown, 0, sock, how);
1401}
1402
1403int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1404{
1405 return call_int_hook(socket_sock_rcv_skb, 0, sk, skb);
1406}
1407EXPORT_SYMBOL(security_sock_rcv_skb);
1408
1409int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1410 int __user *optlen, unsigned len)
1411{
1412 return call_int_hook(socket_getpeersec_stream, -ENOPROTOOPT, sock,
1413 optval, optlen, len);
1414}
1415
1416int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1417{
1418 return call_int_hook(socket_getpeersec_dgram, -ENOPROTOOPT, sock,
1419 skb, secid);
1420}
1421EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1422
1423int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1424{
1425 return call_int_hook(sk_alloc_security, 0, sk, family, priority);
1426}
1427
1428void security_sk_free(struct sock *sk)
1429{
1430 call_void_hook(sk_free_security, sk);
1431}
1432
1433void security_sk_clone(const struct sock *sk, struct sock *newsk)
1434{
1435 call_void_hook(sk_clone_security, sk, newsk);
1436}
1437EXPORT_SYMBOL(security_sk_clone);
1438
1439void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1440{
1441 call_void_hook(sk_getsecid, sk, &fl->flowi_secid);
1442}
1443EXPORT_SYMBOL(security_sk_classify_flow);
1444
1445void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1446{
1447 call_void_hook(req_classify_flow, req, fl);
1448}
1449EXPORT_SYMBOL(security_req_classify_flow);
1450
1451void security_sock_graft(struct sock *sk, struct socket *parent)
1452{
1453 call_void_hook(sock_graft, sk, parent);
1454}
1455EXPORT_SYMBOL(security_sock_graft);
1456
1457int security_inet_conn_request(struct sock *sk,
1458 struct sk_buff *skb, struct request_sock *req)
1459{
1460 return call_int_hook(inet_conn_request, 0, sk, skb, req);
1461}
1462EXPORT_SYMBOL(security_inet_conn_request);
1463
1464void security_inet_csk_clone(struct sock *newsk,
1465 const struct request_sock *req)
1466{
1467 call_void_hook(inet_csk_clone, newsk, req);
1468}
1469
1470void security_inet_conn_established(struct sock *sk,
1471 struct sk_buff *skb)
1472{
1473 call_void_hook(inet_conn_established, sk, skb);
1474}
1475
1476int security_secmark_relabel_packet(u32 secid)
1477{
1478 return call_int_hook(secmark_relabel_packet, 0, secid);
1479}
1480EXPORT_SYMBOL(security_secmark_relabel_packet);
1481
1482void security_secmark_refcount_inc(void)
1483{
1484 call_void_hook(secmark_refcount_inc);
1485}
1486EXPORT_SYMBOL(security_secmark_refcount_inc);
1487
1488void security_secmark_refcount_dec(void)
1489{
1490 call_void_hook(secmark_refcount_dec);
1491}
1492EXPORT_SYMBOL(security_secmark_refcount_dec);
1493
1494int security_tun_dev_alloc_security(void **security)
1495{
1496 return call_int_hook(tun_dev_alloc_security, 0, security);
1497}
1498EXPORT_SYMBOL(security_tun_dev_alloc_security);
1499
1500void security_tun_dev_free_security(void *security)
1501{
1502 call_void_hook(tun_dev_free_security, security);
1503}
1504EXPORT_SYMBOL(security_tun_dev_free_security);
1505
1506int security_tun_dev_create(void)
1507{
1508 return call_int_hook(tun_dev_create, 0);
1509}
1510EXPORT_SYMBOL(security_tun_dev_create);
1511
1512int security_tun_dev_attach_queue(void *security)
1513{
1514 return call_int_hook(tun_dev_attach_queue, 0, security);
1515}
1516EXPORT_SYMBOL(security_tun_dev_attach_queue);
1517
1518int security_tun_dev_attach(struct sock *sk, void *security)
1519{
1520 return call_int_hook(tun_dev_attach, 0, sk, security);
1521}
1522EXPORT_SYMBOL(security_tun_dev_attach);
1523
1524int security_tun_dev_open(void *security)
1525{
1526 return call_int_hook(tun_dev_open, 0, security);
1527}
1528EXPORT_SYMBOL(security_tun_dev_open);
1529
1530#endif
1531
1532#ifdef CONFIG_SECURITY_INFINIBAND
1533
1534int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey)
1535{
1536 return call_int_hook(ib_pkey_access, 0, sec, subnet_prefix, pkey);
1537}
1538EXPORT_SYMBOL(security_ib_pkey_access);
1539
1540int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num)
1541{
1542 return call_int_hook(ib_endport_manage_subnet, 0, sec, dev_name, port_num);
1543}
1544EXPORT_SYMBOL(security_ib_endport_manage_subnet);
1545
1546int security_ib_alloc_security(void **sec)
1547{
1548 return call_int_hook(ib_alloc_security, 0, sec);
1549}
1550EXPORT_SYMBOL(security_ib_alloc_security);
1551
1552void security_ib_free_security(void *sec)
1553{
1554 call_void_hook(ib_free_security, sec);
1555}
1556EXPORT_SYMBOL(security_ib_free_security);
1557#endif
1558
1559#ifdef CONFIG_SECURITY_NETWORK_XFRM
1560
1561int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1562 struct xfrm_user_sec_ctx *sec_ctx,
1563 gfp_t gfp)
1564{
1565 return call_int_hook(xfrm_policy_alloc_security, 0, ctxp, sec_ctx, gfp);
1566}
1567EXPORT_SYMBOL(security_xfrm_policy_alloc);
1568
1569int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1570 struct xfrm_sec_ctx **new_ctxp)
1571{
1572 return call_int_hook(xfrm_policy_clone_security, 0, old_ctx, new_ctxp);
1573}
1574
1575void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1576{
1577 call_void_hook(xfrm_policy_free_security, ctx);
1578}
1579EXPORT_SYMBOL(security_xfrm_policy_free);
1580
1581int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1582{
1583 return call_int_hook(xfrm_policy_delete_security, 0, ctx);
1584}
1585
1586int security_xfrm_state_alloc(struct xfrm_state *x,
1587 struct xfrm_user_sec_ctx *sec_ctx)
1588{
1589 return call_int_hook(xfrm_state_alloc, 0, x, sec_ctx);
1590}
1591EXPORT_SYMBOL(security_xfrm_state_alloc);
1592
1593int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1594 struct xfrm_sec_ctx *polsec, u32 secid)
1595{
1596 return call_int_hook(xfrm_state_alloc_acquire, 0, x, polsec, secid);
1597}
1598
1599int security_xfrm_state_delete(struct xfrm_state *x)
1600{
1601 return call_int_hook(xfrm_state_delete_security, 0, x);
1602}
1603EXPORT_SYMBOL(security_xfrm_state_delete);
1604
1605void security_xfrm_state_free(struct xfrm_state *x)
1606{
1607 call_void_hook(xfrm_state_free_security, x);
1608}
1609
1610int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1611{
1612 return call_int_hook(xfrm_policy_lookup, 0, ctx, fl_secid, dir);
1613}
1614
1615int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1616 struct xfrm_policy *xp,
1617 const struct flowi *fl)
1618{
1619 struct security_hook_list *hp;
1620 int rc = 1;
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631 list_for_each_entry(hp, &security_hook_heads.xfrm_state_pol_flow_match,
1632 list) {
1633 rc = hp->hook.xfrm_state_pol_flow_match(x, xp, fl);
1634 break;
1635 }
1636 return rc;
1637}
1638
1639int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1640{
1641 return call_int_hook(xfrm_decode_session, 0, skb, secid, 1);
1642}
1643
1644void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1645{
1646 int rc = call_int_hook(xfrm_decode_session, 0, skb, &fl->flowi_secid,
1647 0);
1648
1649 BUG_ON(rc);
1650}
1651EXPORT_SYMBOL(security_skb_classify_flow);
1652
1653#endif
1654
1655#ifdef CONFIG_KEYS
1656
1657int security_key_alloc(struct key *key, const struct cred *cred,
1658 unsigned long flags)
1659{
1660 return call_int_hook(key_alloc, 0, key, cred, flags);
1661}
1662
1663void security_key_free(struct key *key)
1664{
1665 call_void_hook(key_free, key);
1666}
1667
1668int security_key_permission(key_ref_t key_ref,
1669 const struct cred *cred, unsigned perm)
1670{
1671 return call_int_hook(key_permission, 0, key_ref, cred, perm);
1672}
1673
1674int security_key_getsecurity(struct key *key, char **_buffer)
1675{
1676 *_buffer = NULL;
1677 return call_int_hook(key_getsecurity, 0, key, _buffer);
1678}
1679
1680#endif
1681
1682#ifdef CONFIG_AUDIT
1683
1684int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1685{
1686 return call_int_hook(audit_rule_init, 0, field, op, rulestr, lsmrule);
1687}
1688
1689int security_audit_rule_known(struct audit_krule *krule)
1690{
1691 return call_int_hook(audit_rule_known, 0, krule);
1692}
1693
1694void security_audit_rule_free(void *lsmrule)
1695{
1696 call_void_hook(audit_rule_free, lsmrule);
1697}
1698
1699int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1700 struct audit_context *actx)
1701{
1702 return call_int_hook(audit_rule_match, 0, secid, field, op, lsmrule,
1703 actx);
1704}
1705#endif
1706