MIPS: perf: fix deadlock
[linux-stable.git] / security / security.c
blobd0e07f269b2d92b54e384d5a50708543bb7cc131
1 /*
2 * Security plug functions
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>
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.
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/lsm_hooks.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>
30 #define MAX_LSM_EVM_XATTR 2
32 /* Maximum number of letters for an LSM name string */
33 #define SECURITY_NAME_MAX 10
35 char *lsm_names;
36 /* Boot-time LSM user choice */
37 static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
38 CONFIG_DEFAULT_SECURITY;
40 static void __init do_security_initcalls(void)
42 initcall_t *call;
43 call = __security_initcall_start;
44 while (call < __security_initcall_end) {
45 (*call) ();
46 call++;
50 /**
51 * security_init - initializes the security framework
53 * This should be called early in the kernel initialization sequence.
55 int __init security_init(void)
57 pr_info("Security Framework initialized\n");
60 * Load minor LSMs, with the capability module always first.
62 capability_add_hooks();
63 yama_add_hooks();
64 loadpin_add_hooks();
67 * Load all the remaining security modules.
69 do_security_initcalls();
71 return 0;
74 /* Save user chosen LSM */
75 static int __init choose_lsm(char *str)
77 strncpy(chosen_lsm, str, SECURITY_NAME_MAX);
78 return 1;
80 __setup("security=", choose_lsm);
82 static int lsm_append(char *new, char **result)
84 char *cp;
86 if (*result == NULL) {
87 *result = kstrdup(new, GFP_KERNEL);
88 } else {
89 cp = kasprintf(GFP_KERNEL, "%s,%s", *result, new);
90 if (cp == NULL)
91 return -ENOMEM;
92 kfree(*result);
93 *result = cp;
95 return 0;
98 /**
99 * security_module_enable - Load given security module on boot ?
100 * @module: the name of the module
102 * Each LSM must pass this method before registering its own operations
103 * to avoid security registration races. This method may also be used
104 * to check if your LSM is currently loaded during kernel initialization.
106 * Return true if:
107 * -The passed LSM is the one chosen by user at boot time,
108 * -or the passed LSM is configured as the default and the user did not
109 * choose an alternate LSM at boot time.
110 * Otherwise, return false.
112 int __init security_module_enable(const char *module)
114 return !strcmp(module, chosen_lsm);
118 * security_add_hooks - Add a modules hooks to the hook lists.
119 * @hooks: the hooks to add
120 * @count: the number of hooks to add
121 * @lsm: the name of the security module
123 * Each LSM has to register its hooks with the infrastructure.
125 void __init security_add_hooks(struct security_hook_list *hooks, int count,
126 char *lsm)
128 int i;
130 for (i = 0; i < count; i++) {
131 hooks[i].lsm = lsm;
132 list_add_tail_rcu(&hooks[i].list, hooks[i].head);
134 if (lsm_append(lsm, &lsm_names) < 0)
135 panic("%s - Cannot get early memory.\n", __func__);
139 * Hook list operation macros.
141 * call_void_hook:
142 * This is a hook that does not return a value.
144 * call_int_hook:
145 * This is a hook that returns a value.
148 #define call_void_hook(FUNC, ...) \
149 do { \
150 struct security_hook_list *P; \
152 list_for_each_entry(P, &security_hook_heads.FUNC, list) \
153 P->hook.FUNC(__VA_ARGS__); \
154 } while (0)
156 #define call_int_hook(FUNC, IRC, ...) ({ \
157 int RC = IRC; \
158 do { \
159 struct security_hook_list *P; \
161 list_for_each_entry(P, &security_hook_heads.FUNC, list) { \
162 RC = P->hook.FUNC(__VA_ARGS__); \
163 if (RC != 0) \
164 break; \
166 } while (0); \
167 RC; \
170 /* Security operations */
172 int security_binder_set_context_mgr(struct task_struct *mgr)
174 return call_int_hook(binder_set_context_mgr, 0, mgr);
177 int security_binder_transaction(struct task_struct *from,
178 struct task_struct *to)
180 return call_int_hook(binder_transaction, 0, from, to);
183 int security_binder_transfer_binder(struct task_struct *from,
184 struct task_struct *to)
186 return call_int_hook(binder_transfer_binder, 0, from, to);
189 int security_binder_transfer_file(struct task_struct *from,
190 struct task_struct *to, struct file *file)
192 return call_int_hook(binder_transfer_file, 0, from, to, file);
195 int security_ptrace_access_check(struct task_struct *child, unsigned int mode)
197 return call_int_hook(ptrace_access_check, 0, child, mode);
200 int security_ptrace_traceme(struct task_struct *parent)
202 return call_int_hook(ptrace_traceme, 0, parent);
205 int security_capget(struct task_struct *target,
206 kernel_cap_t *effective,
207 kernel_cap_t *inheritable,
208 kernel_cap_t *permitted)
210 return call_int_hook(capget, 0, target,
211 effective, inheritable, permitted);
214 int security_capset(struct cred *new, const struct cred *old,
215 const kernel_cap_t *effective,
216 const kernel_cap_t *inheritable,
217 const kernel_cap_t *permitted)
219 return call_int_hook(capset, 0, new, old,
220 effective, inheritable, permitted);
223 int security_capable(const struct cred *cred, struct user_namespace *ns,
224 int cap)
226 return call_int_hook(capable, 0, cred, ns, cap, SECURITY_CAP_AUDIT);
229 int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
230 int cap)
232 return call_int_hook(capable, 0, cred, ns, cap, SECURITY_CAP_NOAUDIT);
235 int security_quotactl(int cmds, int type, int id, struct super_block *sb)
237 return call_int_hook(quotactl, 0, cmds, type, id, sb);
240 int security_quota_on(struct dentry *dentry)
242 return call_int_hook(quota_on, 0, dentry);
245 int security_syslog(int type)
247 return call_int_hook(syslog, 0, type);
250 int security_settime64(const struct timespec64 *ts, const struct timezone *tz)
252 return call_int_hook(settime, 0, ts, tz);
255 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
257 struct security_hook_list *hp;
258 int cap_sys_admin = 1;
259 int rc;
262 * The module will respond with a positive value if
263 * it thinks the __vm_enough_memory() call should be
264 * made with the cap_sys_admin set. If all of the modules
265 * agree that it should be set it will. If any module
266 * thinks it should not be set it won't.
268 list_for_each_entry(hp, &security_hook_heads.vm_enough_memory, list) {
269 rc = hp->hook.vm_enough_memory(mm, pages);
270 if (rc <= 0) {
271 cap_sys_admin = 0;
272 break;
275 return __vm_enough_memory(mm, pages, cap_sys_admin);
278 int security_bprm_set_creds(struct linux_binprm *bprm)
280 return call_int_hook(bprm_set_creds, 0, bprm);
283 int security_bprm_check(struct linux_binprm *bprm)
285 int ret;
287 ret = call_int_hook(bprm_check_security, 0, bprm);
288 if (ret)
289 return ret;
290 return ima_bprm_check(bprm);
293 void security_bprm_committing_creds(struct linux_binprm *bprm)
295 call_void_hook(bprm_committing_creds, bprm);
298 void security_bprm_committed_creds(struct linux_binprm *bprm)
300 call_void_hook(bprm_committed_creds, bprm);
303 int security_bprm_secureexec(struct linux_binprm *bprm)
305 return call_int_hook(bprm_secureexec, 0, bprm);
308 int security_sb_alloc(struct super_block *sb)
310 return call_int_hook(sb_alloc_security, 0, sb);
313 void security_sb_free(struct super_block *sb)
315 call_void_hook(sb_free_security, sb);
318 int security_sb_copy_data(char *orig, char *copy)
320 return call_int_hook(sb_copy_data, 0, orig, copy);
322 EXPORT_SYMBOL(security_sb_copy_data);
324 int security_sb_remount(struct super_block *sb, void *data)
326 return call_int_hook(sb_remount, 0, sb, data);
329 int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
331 return call_int_hook(sb_kern_mount, 0, sb, flags, data);
334 int security_sb_show_options(struct seq_file *m, struct super_block *sb)
336 return call_int_hook(sb_show_options, 0, m, sb);
339 int security_sb_statfs(struct dentry *dentry)
341 return call_int_hook(sb_statfs, 0, dentry);
344 int security_sb_mount(const char *dev_name, const struct path *path,
345 const char *type, unsigned long flags, void *data)
347 return call_int_hook(sb_mount, 0, dev_name, path, type, flags, data);
350 int security_sb_umount(struct vfsmount *mnt, int flags)
352 return call_int_hook(sb_umount, 0, mnt, flags);
355 int security_sb_pivotroot(const struct path *old_path, const struct path *new_path)
357 return call_int_hook(sb_pivotroot, 0, old_path, new_path);
360 int security_sb_set_mnt_opts(struct super_block *sb,
361 struct security_mnt_opts *opts,
362 unsigned long kern_flags,
363 unsigned long *set_kern_flags)
365 return call_int_hook(sb_set_mnt_opts,
366 opts->num_mnt_opts ? -EOPNOTSUPP : 0, sb,
367 opts, kern_flags, set_kern_flags);
369 EXPORT_SYMBOL(security_sb_set_mnt_opts);
371 int security_sb_clone_mnt_opts(const struct super_block *oldsb,
372 struct super_block *newsb)
374 return call_int_hook(sb_clone_mnt_opts, 0, oldsb, newsb);
376 EXPORT_SYMBOL(security_sb_clone_mnt_opts);
378 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
380 return call_int_hook(sb_parse_opts_str, 0, options, opts);
382 EXPORT_SYMBOL(security_sb_parse_opts_str);
384 int security_inode_alloc(struct inode *inode)
386 inode->i_security = NULL;
387 return call_int_hook(inode_alloc_security, 0, inode);
390 void security_inode_free(struct inode *inode)
392 integrity_inode_free(inode);
393 call_void_hook(inode_free_security, inode);
396 int security_dentry_init_security(struct dentry *dentry, int mode,
397 const struct qstr *name, void **ctx,
398 u32 *ctxlen)
400 return call_int_hook(dentry_init_security, -EOPNOTSUPP, dentry, mode,
401 name, ctx, ctxlen);
403 EXPORT_SYMBOL(security_dentry_init_security);
405 int security_dentry_create_files_as(struct dentry *dentry, int mode,
406 struct qstr *name,
407 const struct cred *old, struct cred *new)
409 return call_int_hook(dentry_create_files_as, 0, dentry, mode,
410 name, old, new);
412 EXPORT_SYMBOL(security_dentry_create_files_as);
414 int security_inode_init_security(struct inode *inode, struct inode *dir,
415 const struct qstr *qstr,
416 const initxattrs initxattrs, void *fs_data)
418 struct xattr new_xattrs[MAX_LSM_EVM_XATTR + 1];
419 struct xattr *lsm_xattr, *evm_xattr, *xattr;
420 int ret;
422 if (unlikely(IS_PRIVATE(inode)))
423 return 0;
425 if (!initxattrs)
426 return call_int_hook(inode_init_security, -EOPNOTSUPP, inode,
427 dir, qstr, NULL, NULL, NULL);
428 memset(new_xattrs, 0, sizeof(new_xattrs));
429 lsm_xattr = new_xattrs;
430 ret = call_int_hook(inode_init_security, -EOPNOTSUPP, inode, dir, qstr,
431 &lsm_xattr->name,
432 &lsm_xattr->value,
433 &lsm_xattr->value_len);
434 if (ret)
435 goto out;
437 evm_xattr = lsm_xattr + 1;
438 ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr);
439 if (ret)
440 goto out;
441 ret = initxattrs(inode, new_xattrs, fs_data);
442 out:
443 for (xattr = new_xattrs; xattr->value != NULL; xattr++)
444 kfree(xattr->value);
445 return (ret == -EOPNOTSUPP) ? 0 : ret;
447 EXPORT_SYMBOL(security_inode_init_security);
449 int security_old_inode_init_security(struct inode *inode, struct inode *dir,
450 const struct qstr *qstr, const char **name,
451 void **value, size_t *len)
453 if (unlikely(IS_PRIVATE(inode)))
454 return -EOPNOTSUPP;
455 return call_int_hook(inode_init_security, -EOPNOTSUPP, inode, dir,
456 qstr, name, value, len);
458 EXPORT_SYMBOL(security_old_inode_init_security);
460 #ifdef CONFIG_SECURITY_PATH
461 int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
462 unsigned int dev)
464 if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
465 return 0;
466 return call_int_hook(path_mknod, 0, dir, dentry, mode, dev);
468 EXPORT_SYMBOL(security_path_mknod);
470 int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode)
472 if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
473 return 0;
474 return call_int_hook(path_mkdir, 0, dir, dentry, mode);
476 EXPORT_SYMBOL(security_path_mkdir);
478 int security_path_rmdir(const struct path *dir, struct dentry *dentry)
480 if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
481 return 0;
482 return call_int_hook(path_rmdir, 0, dir, dentry);
485 int security_path_unlink(const struct path *dir, struct dentry *dentry)
487 if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
488 return 0;
489 return call_int_hook(path_unlink, 0, dir, dentry);
491 EXPORT_SYMBOL(security_path_unlink);
493 int security_path_symlink(const struct path *dir, struct dentry *dentry,
494 const char *old_name)
496 if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
497 return 0;
498 return call_int_hook(path_symlink, 0, dir, dentry, old_name);
501 int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
502 struct dentry *new_dentry)
504 if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry))))
505 return 0;
506 return call_int_hook(path_link, 0, old_dentry, new_dir, new_dentry);
509 int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
510 const struct path *new_dir, struct dentry *new_dentry,
511 unsigned int flags)
513 if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) ||
514 (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry)))))
515 return 0;
517 if (flags & RENAME_EXCHANGE) {
518 int err = call_int_hook(path_rename, 0, new_dir, new_dentry,
519 old_dir, old_dentry);
520 if (err)
521 return err;
524 return call_int_hook(path_rename, 0, old_dir, old_dentry, new_dir,
525 new_dentry);
527 EXPORT_SYMBOL(security_path_rename);
529 int security_path_truncate(const struct path *path)
531 if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
532 return 0;
533 return call_int_hook(path_truncate, 0, path);
536 int security_path_chmod(const struct path *path, umode_t mode)
538 if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
539 return 0;
540 return call_int_hook(path_chmod, 0, path, mode);
543 int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
545 if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
546 return 0;
547 return call_int_hook(path_chown, 0, path, uid, gid);
550 int security_path_chroot(const struct path *path)
552 return call_int_hook(path_chroot, 0, path);
554 #endif
556 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode)
558 if (unlikely(IS_PRIVATE(dir)))
559 return 0;
560 return call_int_hook(inode_create, 0, dir, dentry, mode);
562 EXPORT_SYMBOL_GPL(security_inode_create);
564 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
565 struct dentry *new_dentry)
567 if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry))))
568 return 0;
569 return call_int_hook(inode_link, 0, old_dentry, dir, new_dentry);
572 int security_inode_unlink(struct inode *dir, struct dentry *dentry)
574 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
575 return 0;
576 return call_int_hook(inode_unlink, 0, dir, dentry);
579 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
580 const char *old_name)
582 if (unlikely(IS_PRIVATE(dir)))
583 return 0;
584 return call_int_hook(inode_symlink, 0, dir, dentry, old_name);
587 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
589 if (unlikely(IS_PRIVATE(dir)))
590 return 0;
591 return call_int_hook(inode_mkdir, 0, dir, dentry, mode);
593 EXPORT_SYMBOL_GPL(security_inode_mkdir);
595 int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
597 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
598 return 0;
599 return call_int_hook(inode_rmdir, 0, dir, dentry);
602 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
604 if (unlikely(IS_PRIVATE(dir)))
605 return 0;
606 return call_int_hook(inode_mknod, 0, dir, dentry, mode, dev);
609 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
610 struct inode *new_dir, struct dentry *new_dentry,
611 unsigned int flags)
613 if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) ||
614 (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry)))))
615 return 0;
617 if (flags & RENAME_EXCHANGE) {
618 int err = call_int_hook(inode_rename, 0, new_dir, new_dentry,
619 old_dir, old_dentry);
620 if (err)
621 return err;
624 return call_int_hook(inode_rename, 0, old_dir, old_dentry,
625 new_dir, new_dentry);
628 int security_inode_readlink(struct dentry *dentry)
630 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
631 return 0;
632 return call_int_hook(inode_readlink, 0, dentry);
635 int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
636 bool rcu)
638 if (unlikely(IS_PRIVATE(inode)))
639 return 0;
640 return call_int_hook(inode_follow_link, 0, dentry, inode, rcu);
643 int security_inode_permission(struct inode *inode, int mask)
645 if (unlikely(IS_PRIVATE(inode)))
646 return 0;
647 return call_int_hook(inode_permission, 0, inode, mask);
650 int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
652 int ret;
654 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
655 return 0;
656 ret = call_int_hook(inode_setattr, 0, dentry, attr);
657 if (ret)
658 return ret;
659 return evm_inode_setattr(dentry, attr);
661 EXPORT_SYMBOL_GPL(security_inode_setattr);
663 int security_inode_getattr(const struct path *path)
665 if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
666 return 0;
667 return call_int_hook(inode_getattr, 0, path);
670 int security_inode_setxattr(struct dentry *dentry, const char *name,
671 const void *value, size_t size, int flags)
673 int ret;
675 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
676 return 0;
678 * SELinux and Smack integrate the cap call,
679 * so assume that all LSMs supplying this call do so.
681 ret = call_int_hook(inode_setxattr, 1, dentry, name, value, size,
682 flags);
684 if (ret == 1)
685 ret = cap_inode_setxattr(dentry, name, value, size, flags);
686 if (ret)
687 return ret;
688 ret = ima_inode_setxattr(dentry, name, value, size);
689 if (ret)
690 return ret;
691 return evm_inode_setxattr(dentry, name, value, size);
694 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
695 const void *value, size_t size, int flags)
697 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
698 return;
699 call_void_hook(inode_post_setxattr, dentry, name, value, size, flags);
700 evm_inode_post_setxattr(dentry, name, value, size);
703 int security_inode_getxattr(struct dentry *dentry, const char *name)
705 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
706 return 0;
707 return call_int_hook(inode_getxattr, 0, dentry, name);
710 int security_inode_listxattr(struct dentry *dentry)
712 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
713 return 0;
714 return call_int_hook(inode_listxattr, 0, dentry);
717 int security_inode_removexattr(struct dentry *dentry, const char *name)
719 int ret;
721 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
722 return 0;
724 * SELinux and Smack integrate the cap call,
725 * so assume that all LSMs supplying this call do so.
727 ret = call_int_hook(inode_removexattr, 1, dentry, name);
728 if (ret == 1)
729 ret = cap_inode_removexattr(dentry, name);
730 if (ret)
731 return ret;
732 ret = ima_inode_removexattr(dentry, name);
733 if (ret)
734 return ret;
735 return evm_inode_removexattr(dentry, name);
738 int security_inode_need_killpriv(struct dentry *dentry)
740 return call_int_hook(inode_need_killpriv, 0, dentry);
743 int security_inode_killpriv(struct dentry *dentry)
745 return call_int_hook(inode_killpriv, 0, dentry);
748 int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
750 struct security_hook_list *hp;
751 int rc;
753 if (unlikely(IS_PRIVATE(inode)))
754 return -EOPNOTSUPP;
756 * Only one module will provide an attribute with a given name.
758 list_for_each_entry(hp, &security_hook_heads.inode_getsecurity, list) {
759 rc = hp->hook.inode_getsecurity(inode, name, buffer, alloc);
760 if (rc != -EOPNOTSUPP)
761 return rc;
763 return -EOPNOTSUPP;
766 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
768 struct security_hook_list *hp;
769 int rc;
771 if (unlikely(IS_PRIVATE(inode)))
772 return -EOPNOTSUPP;
774 * Only one module will provide an attribute with a given name.
776 list_for_each_entry(hp, &security_hook_heads.inode_setsecurity, list) {
777 rc = hp->hook.inode_setsecurity(inode, name, value, size,
778 flags);
779 if (rc != -EOPNOTSUPP)
780 return rc;
782 return -EOPNOTSUPP;
785 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
787 if (unlikely(IS_PRIVATE(inode)))
788 return 0;
789 return call_int_hook(inode_listsecurity, 0, inode, buffer, buffer_size);
791 EXPORT_SYMBOL(security_inode_listsecurity);
793 void security_inode_getsecid(struct inode *inode, u32 *secid)
795 call_void_hook(inode_getsecid, inode, secid);
798 int security_inode_copy_up(struct dentry *src, struct cred **new)
800 return call_int_hook(inode_copy_up, 0, src, new);
802 EXPORT_SYMBOL(security_inode_copy_up);
804 int security_inode_copy_up_xattr(const char *name)
806 return call_int_hook(inode_copy_up_xattr, -EOPNOTSUPP, name);
808 EXPORT_SYMBOL(security_inode_copy_up_xattr);
810 int security_file_permission(struct file *file, int mask)
812 int ret;
814 ret = call_int_hook(file_permission, 0, file, mask);
815 if (ret)
816 return ret;
818 return fsnotify_perm(file, mask);
821 int security_file_alloc(struct file *file)
823 return call_int_hook(file_alloc_security, 0, file);
826 void security_file_free(struct file *file)
828 call_void_hook(file_free_security, file);
831 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
833 return call_int_hook(file_ioctl, 0, file, cmd, arg);
836 static inline unsigned long mmap_prot(struct file *file, unsigned long prot)
839 * Does we have PROT_READ and does the application expect
840 * it to imply PROT_EXEC? If not, nothing to talk about...
842 if ((prot & (PROT_READ | PROT_EXEC)) != PROT_READ)
843 return prot;
844 if (!(current->personality & READ_IMPLIES_EXEC))
845 return prot;
847 * if that's an anonymous mapping, let it.
849 if (!file)
850 return prot | PROT_EXEC;
852 * ditto if it's not on noexec mount, except that on !MMU we need
853 * NOMMU_MAP_EXEC (== VM_MAYEXEC) in this case
855 if (!path_noexec(&file->f_path)) {
856 #ifndef CONFIG_MMU
857 if (file->f_op->mmap_capabilities) {
858 unsigned caps = file->f_op->mmap_capabilities(file);
859 if (!(caps & NOMMU_MAP_EXEC))
860 return prot;
862 #endif
863 return prot | PROT_EXEC;
865 /* anything on noexec mount won't get PROT_EXEC */
866 return prot;
869 int security_mmap_file(struct file *file, unsigned long prot,
870 unsigned long flags)
872 int ret;
873 ret = call_int_hook(mmap_file, 0, file, prot,
874 mmap_prot(file, prot), flags);
875 if (ret)
876 return ret;
877 return ima_file_mmap(file, prot);
880 int security_mmap_addr(unsigned long addr)
882 return call_int_hook(mmap_addr, 0, addr);
885 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
886 unsigned long prot)
888 return call_int_hook(file_mprotect, 0, vma, reqprot, prot);
891 int security_file_lock(struct file *file, unsigned int cmd)
893 return call_int_hook(file_lock, 0, file, cmd);
896 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
898 return call_int_hook(file_fcntl, 0, file, cmd, arg);
901 void security_file_set_fowner(struct file *file)
903 call_void_hook(file_set_fowner, file);
906 int security_file_send_sigiotask(struct task_struct *tsk,
907 struct fown_struct *fown, int sig)
909 return call_int_hook(file_send_sigiotask, 0, tsk, fown, sig);
912 int security_file_receive(struct file *file)
914 return call_int_hook(file_receive, 0, file);
917 int security_file_open(struct file *file, const struct cred *cred)
919 int ret;
921 ret = call_int_hook(file_open, 0, file, cred);
922 if (ret)
923 return ret;
925 return fsnotify_perm(file, MAY_OPEN);
928 int security_task_create(unsigned long clone_flags)
930 return call_int_hook(task_create, 0, clone_flags);
933 void security_task_free(struct task_struct *task)
935 call_void_hook(task_free, task);
938 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
940 return call_int_hook(cred_alloc_blank, 0, cred, gfp);
943 void security_cred_free(struct cred *cred)
945 call_void_hook(cred_free, cred);
948 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
950 return call_int_hook(cred_prepare, 0, new, old, gfp);
953 void security_transfer_creds(struct cred *new, const struct cred *old)
955 call_void_hook(cred_transfer, new, old);
958 int security_kernel_act_as(struct cred *new, u32 secid)
960 return call_int_hook(kernel_act_as, 0, new, secid);
963 int security_kernel_create_files_as(struct cred *new, struct inode *inode)
965 return call_int_hook(kernel_create_files_as, 0, new, inode);
968 int security_kernel_module_request(char *kmod_name)
970 return call_int_hook(kernel_module_request, 0, kmod_name);
973 int security_kernel_read_file(struct file *file, enum kernel_read_file_id id)
975 int ret;
977 ret = call_int_hook(kernel_read_file, 0, file, id);
978 if (ret)
979 return ret;
980 return ima_read_file(file, id);
982 EXPORT_SYMBOL_GPL(security_kernel_read_file);
984 int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
985 enum kernel_read_file_id id)
987 int ret;
989 ret = call_int_hook(kernel_post_read_file, 0, file, buf, size, id);
990 if (ret)
991 return ret;
992 return ima_post_read_file(file, buf, size, id);
994 EXPORT_SYMBOL_GPL(security_kernel_post_read_file);
996 int security_task_fix_setuid(struct cred *new, const struct cred *old,
997 int flags)
999 return call_int_hook(task_fix_setuid, 0, new, old, flags);
1002 int security_task_setpgid(struct task_struct *p, pid_t pgid)
1004 return call_int_hook(task_setpgid, 0, p, pgid);
1007 int security_task_getpgid(struct task_struct *p)
1009 return call_int_hook(task_getpgid, 0, p);
1012 int security_task_getsid(struct task_struct *p)
1014 return call_int_hook(task_getsid, 0, p);
1017 void security_task_getsecid(struct task_struct *p, u32 *secid)
1019 *secid = 0;
1020 call_void_hook(task_getsecid, p, secid);
1022 EXPORT_SYMBOL(security_task_getsecid);
1024 int security_task_setnice(struct task_struct *p, int nice)
1026 return call_int_hook(task_setnice, 0, p, nice);
1029 int security_task_setioprio(struct task_struct *p, int ioprio)
1031 return call_int_hook(task_setioprio, 0, p, ioprio);
1034 int security_task_getioprio(struct task_struct *p)
1036 return call_int_hook(task_getioprio, 0, p);
1039 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
1040 struct rlimit *new_rlim)
1042 return call_int_hook(task_setrlimit, 0, p, resource, new_rlim);
1045 int security_task_setscheduler(struct task_struct *p)
1047 return call_int_hook(task_setscheduler, 0, p);
1050 int security_task_getscheduler(struct task_struct *p)
1052 return call_int_hook(task_getscheduler, 0, p);
1055 int security_task_movememory(struct task_struct *p)
1057 return call_int_hook(task_movememory, 0, p);
1060 int security_task_kill(struct task_struct *p, struct siginfo *info,
1061 int sig, u32 secid)
1063 return call_int_hook(task_kill, 0, p, info, sig, secid);
1066 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
1067 unsigned long arg4, unsigned long arg5)
1069 int thisrc;
1070 int rc = -ENOSYS;
1071 struct security_hook_list *hp;
1073 list_for_each_entry(hp, &security_hook_heads.task_prctl, list) {
1074 thisrc = hp->hook.task_prctl(option, arg2, arg3, arg4, arg5);
1075 if (thisrc != -ENOSYS) {
1076 rc = thisrc;
1077 if (thisrc != 0)
1078 break;
1081 return rc;
1084 void security_task_to_inode(struct task_struct *p, struct inode *inode)
1086 call_void_hook(task_to_inode, p, inode);
1089 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
1091 return call_int_hook(ipc_permission, 0, ipcp, flag);
1094 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
1096 *secid = 0;
1097 call_void_hook(ipc_getsecid, ipcp, secid);
1100 int security_msg_msg_alloc(struct msg_msg *msg)
1102 return call_int_hook(msg_msg_alloc_security, 0, msg);
1105 void security_msg_msg_free(struct msg_msg *msg)
1107 call_void_hook(msg_msg_free_security, msg);
1110 int security_msg_queue_alloc(struct msg_queue *msq)
1112 return call_int_hook(msg_queue_alloc_security, 0, msq);
1115 void security_msg_queue_free(struct msg_queue *msq)
1117 call_void_hook(msg_queue_free_security, msq);
1120 int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
1122 return call_int_hook(msg_queue_associate, 0, msq, msqflg);
1125 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
1127 return call_int_hook(msg_queue_msgctl, 0, msq, cmd);
1130 int security_msg_queue_msgsnd(struct msg_queue *msq,
1131 struct msg_msg *msg, int msqflg)
1133 return call_int_hook(msg_queue_msgsnd, 0, msq, msg, msqflg);
1136 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
1137 struct task_struct *target, long type, int mode)
1139 return call_int_hook(msg_queue_msgrcv, 0, msq, msg, target, type, mode);
1142 int security_shm_alloc(struct shmid_kernel *shp)
1144 return call_int_hook(shm_alloc_security, 0, shp);
1147 void security_shm_free(struct shmid_kernel *shp)
1149 call_void_hook(shm_free_security, shp);
1152 int security_shm_associate(struct shmid_kernel *shp, int shmflg)
1154 return call_int_hook(shm_associate, 0, shp, shmflg);
1157 int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
1159 return call_int_hook(shm_shmctl, 0, shp, cmd);
1162 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
1164 return call_int_hook(shm_shmat, 0, shp, shmaddr, shmflg);
1167 int security_sem_alloc(struct sem_array *sma)
1169 return call_int_hook(sem_alloc_security, 0, sma);
1172 void security_sem_free(struct sem_array *sma)
1174 call_void_hook(sem_free_security, sma);
1177 int security_sem_associate(struct sem_array *sma, int semflg)
1179 return call_int_hook(sem_associate, 0, sma, semflg);
1182 int security_sem_semctl(struct sem_array *sma, int cmd)
1184 return call_int_hook(sem_semctl, 0, sma, cmd);
1187 int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1188 unsigned nsops, int alter)
1190 return call_int_hook(sem_semop, 0, sma, sops, nsops, alter);
1193 void security_d_instantiate(struct dentry *dentry, struct inode *inode)
1195 if (unlikely(inode && IS_PRIVATE(inode)))
1196 return;
1197 call_void_hook(d_instantiate, dentry, inode);
1199 EXPORT_SYMBOL(security_d_instantiate);
1201 int security_getprocattr(struct task_struct *p, char *name, char **value)
1203 return call_int_hook(getprocattr, -EINVAL, p, name, value);
1206 int security_setprocattr(const char *name, void *value, size_t size)
1208 return call_int_hook(setprocattr, -EINVAL, name, value, size);
1211 int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1213 return call_int_hook(netlink_send, 0, sk, skb);
1216 int security_ismaclabel(const char *name)
1218 return call_int_hook(ismaclabel, 0, name);
1220 EXPORT_SYMBOL(security_ismaclabel);
1222 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1224 return call_int_hook(secid_to_secctx, -EOPNOTSUPP, secid, secdata,
1225 seclen);
1227 EXPORT_SYMBOL(security_secid_to_secctx);
1229 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
1231 *secid = 0;
1232 return call_int_hook(secctx_to_secid, 0, secdata, seclen, secid);
1234 EXPORT_SYMBOL(security_secctx_to_secid);
1236 void security_release_secctx(char *secdata, u32 seclen)
1238 call_void_hook(release_secctx, secdata, seclen);
1240 EXPORT_SYMBOL(security_release_secctx);
1242 void security_inode_invalidate_secctx(struct inode *inode)
1244 call_void_hook(inode_invalidate_secctx, inode);
1246 EXPORT_SYMBOL(security_inode_invalidate_secctx);
1248 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1250 return call_int_hook(inode_notifysecctx, 0, inode, ctx, ctxlen);
1252 EXPORT_SYMBOL(security_inode_notifysecctx);
1254 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1256 return call_int_hook(inode_setsecctx, 0, dentry, ctx, ctxlen);
1258 EXPORT_SYMBOL(security_inode_setsecctx);
1260 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1262 return call_int_hook(inode_getsecctx, -EOPNOTSUPP, inode, ctx, ctxlen);
1264 EXPORT_SYMBOL(security_inode_getsecctx);
1266 #ifdef CONFIG_SECURITY_NETWORK
1268 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk)
1270 return call_int_hook(unix_stream_connect, 0, sock, other, newsk);
1272 EXPORT_SYMBOL(security_unix_stream_connect);
1274 int security_unix_may_send(struct socket *sock, struct socket *other)
1276 return call_int_hook(unix_may_send, 0, sock, other);
1278 EXPORT_SYMBOL(security_unix_may_send);
1280 int security_socket_create(int family, int type, int protocol, int kern)
1282 return call_int_hook(socket_create, 0, family, type, protocol, kern);
1285 int security_socket_post_create(struct socket *sock, int family,
1286 int type, int protocol, int kern)
1288 return call_int_hook(socket_post_create, 0, sock, family, type,
1289 protocol, kern);
1292 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
1294 return call_int_hook(socket_bind, 0, sock, address, addrlen);
1297 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
1299 return call_int_hook(socket_connect, 0, sock, address, addrlen);
1302 int security_socket_listen(struct socket *sock, int backlog)
1304 return call_int_hook(socket_listen, 0, sock, backlog);
1307 int security_socket_accept(struct socket *sock, struct socket *newsock)
1309 return call_int_hook(socket_accept, 0, sock, newsock);
1312 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1314 return call_int_hook(socket_sendmsg, 0, sock, msg, size);
1317 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1318 int size, int flags)
1320 return call_int_hook(socket_recvmsg, 0, sock, msg, size, flags);
1323 int security_socket_getsockname(struct socket *sock)
1325 return call_int_hook(socket_getsockname, 0, sock);
1328 int security_socket_getpeername(struct socket *sock)
1330 return call_int_hook(socket_getpeername, 0, sock);
1333 int security_socket_getsockopt(struct socket *sock, int level, int optname)
1335 return call_int_hook(socket_getsockopt, 0, sock, level, optname);
1338 int security_socket_setsockopt(struct socket *sock, int level, int optname)
1340 return call_int_hook(socket_setsockopt, 0, sock, level, optname);
1343 int security_socket_shutdown(struct socket *sock, int how)
1345 return call_int_hook(socket_shutdown, 0, sock, how);
1348 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1350 return call_int_hook(socket_sock_rcv_skb, 0, sk, skb);
1352 EXPORT_SYMBOL(security_sock_rcv_skb);
1354 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1355 int __user *optlen, unsigned len)
1357 return call_int_hook(socket_getpeersec_stream, -ENOPROTOOPT, sock,
1358 optval, optlen, len);
1361 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1363 return call_int_hook(socket_getpeersec_dgram, -ENOPROTOOPT, sock,
1364 skb, secid);
1366 EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1368 int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1370 return call_int_hook(sk_alloc_security, 0, sk, family, priority);
1373 void security_sk_free(struct sock *sk)
1375 call_void_hook(sk_free_security, sk);
1378 void security_sk_clone(const struct sock *sk, struct sock *newsk)
1380 call_void_hook(sk_clone_security, sk, newsk);
1382 EXPORT_SYMBOL(security_sk_clone);
1384 void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1386 call_void_hook(sk_getsecid, sk, &fl->flowi_secid);
1388 EXPORT_SYMBOL(security_sk_classify_flow);
1390 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1392 call_void_hook(req_classify_flow, req, fl);
1394 EXPORT_SYMBOL(security_req_classify_flow);
1396 void security_sock_graft(struct sock *sk, struct socket *parent)
1398 call_void_hook(sock_graft, sk, parent);
1400 EXPORT_SYMBOL(security_sock_graft);
1402 int security_inet_conn_request(struct sock *sk,
1403 struct sk_buff *skb, struct request_sock *req)
1405 return call_int_hook(inet_conn_request, 0, sk, skb, req);
1407 EXPORT_SYMBOL(security_inet_conn_request);
1409 void security_inet_csk_clone(struct sock *newsk,
1410 const struct request_sock *req)
1412 call_void_hook(inet_csk_clone, newsk, req);
1415 void security_inet_conn_established(struct sock *sk,
1416 struct sk_buff *skb)
1418 call_void_hook(inet_conn_established, sk, skb);
1421 int security_secmark_relabel_packet(u32 secid)
1423 return call_int_hook(secmark_relabel_packet, 0, secid);
1425 EXPORT_SYMBOL(security_secmark_relabel_packet);
1427 void security_secmark_refcount_inc(void)
1429 call_void_hook(secmark_refcount_inc);
1431 EXPORT_SYMBOL(security_secmark_refcount_inc);
1433 void security_secmark_refcount_dec(void)
1435 call_void_hook(secmark_refcount_dec);
1437 EXPORT_SYMBOL(security_secmark_refcount_dec);
1439 int security_tun_dev_alloc_security(void **security)
1441 return call_int_hook(tun_dev_alloc_security, 0, security);
1443 EXPORT_SYMBOL(security_tun_dev_alloc_security);
1445 void security_tun_dev_free_security(void *security)
1447 call_void_hook(tun_dev_free_security, security);
1449 EXPORT_SYMBOL(security_tun_dev_free_security);
1451 int security_tun_dev_create(void)
1453 return call_int_hook(tun_dev_create, 0);
1455 EXPORT_SYMBOL(security_tun_dev_create);
1457 int security_tun_dev_attach_queue(void *security)
1459 return call_int_hook(tun_dev_attach_queue, 0, security);
1461 EXPORT_SYMBOL(security_tun_dev_attach_queue);
1463 int security_tun_dev_attach(struct sock *sk, void *security)
1465 return call_int_hook(tun_dev_attach, 0, sk, security);
1467 EXPORT_SYMBOL(security_tun_dev_attach);
1469 int security_tun_dev_open(void *security)
1471 return call_int_hook(tun_dev_open, 0, security);
1473 EXPORT_SYMBOL(security_tun_dev_open);
1475 #endif /* CONFIG_SECURITY_NETWORK */
1477 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1479 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1480 struct xfrm_user_sec_ctx *sec_ctx,
1481 gfp_t gfp)
1483 return call_int_hook(xfrm_policy_alloc_security, 0, ctxp, sec_ctx, gfp);
1485 EXPORT_SYMBOL(security_xfrm_policy_alloc);
1487 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1488 struct xfrm_sec_ctx **new_ctxp)
1490 return call_int_hook(xfrm_policy_clone_security, 0, old_ctx, new_ctxp);
1493 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1495 call_void_hook(xfrm_policy_free_security, ctx);
1497 EXPORT_SYMBOL(security_xfrm_policy_free);
1499 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1501 return call_int_hook(xfrm_policy_delete_security, 0, ctx);
1504 int security_xfrm_state_alloc(struct xfrm_state *x,
1505 struct xfrm_user_sec_ctx *sec_ctx)
1507 return call_int_hook(xfrm_state_alloc, 0, x, sec_ctx);
1509 EXPORT_SYMBOL(security_xfrm_state_alloc);
1511 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1512 struct xfrm_sec_ctx *polsec, u32 secid)
1514 return call_int_hook(xfrm_state_alloc_acquire, 0, x, polsec, secid);
1517 int security_xfrm_state_delete(struct xfrm_state *x)
1519 return call_int_hook(xfrm_state_delete_security, 0, x);
1521 EXPORT_SYMBOL(security_xfrm_state_delete);
1523 void security_xfrm_state_free(struct xfrm_state *x)
1525 call_void_hook(xfrm_state_free_security, x);
1528 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1530 return call_int_hook(xfrm_policy_lookup, 0, ctx, fl_secid, dir);
1533 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1534 struct xfrm_policy *xp,
1535 const struct flowi *fl)
1537 struct security_hook_list *hp;
1538 int rc = 1;
1541 * Since this function is expected to return 0 or 1, the judgment
1542 * becomes difficult if multiple LSMs supply this call. Fortunately,
1543 * we can use the first LSM's judgment because currently only SELinux
1544 * supplies this call.
1546 * For speed optimization, we explicitly break the loop rather than
1547 * using the macro
1549 list_for_each_entry(hp, &security_hook_heads.xfrm_state_pol_flow_match,
1550 list) {
1551 rc = hp->hook.xfrm_state_pol_flow_match(x, xp, fl);
1552 break;
1554 return rc;
1557 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1559 return call_int_hook(xfrm_decode_session, 0, skb, secid, 1);
1562 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1564 int rc = call_int_hook(xfrm_decode_session, 0, skb, &fl->flowi_secid,
1567 BUG_ON(rc);
1569 EXPORT_SYMBOL(security_skb_classify_flow);
1571 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1573 #ifdef CONFIG_KEYS
1575 int security_key_alloc(struct key *key, const struct cred *cred,
1576 unsigned long flags)
1578 return call_int_hook(key_alloc, 0, key, cred, flags);
1581 void security_key_free(struct key *key)
1583 call_void_hook(key_free, key);
1586 int security_key_permission(key_ref_t key_ref,
1587 const struct cred *cred, unsigned perm)
1589 return call_int_hook(key_permission, 0, key_ref, cred, perm);
1592 int security_key_getsecurity(struct key *key, char **_buffer)
1594 *_buffer = NULL;
1595 return call_int_hook(key_getsecurity, 0, key, _buffer);
1598 #endif /* CONFIG_KEYS */
1600 #ifdef CONFIG_AUDIT
1602 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1604 return call_int_hook(audit_rule_init, 0, field, op, rulestr, lsmrule);
1607 int security_audit_rule_known(struct audit_krule *krule)
1609 return call_int_hook(audit_rule_known, 0, krule);
1612 void security_audit_rule_free(void *lsmrule)
1614 call_void_hook(audit_rule_free, lsmrule);
1617 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1618 struct audit_context *actx)
1620 return call_int_hook(audit_rule_match, 0, secid, field, op, lsmrule,
1621 actx);
1623 #endif /* CONFIG_AUDIT */
1625 struct security_hook_heads security_hook_heads = {
1626 .binder_set_context_mgr =
1627 LIST_HEAD_INIT(security_hook_heads.binder_set_context_mgr),
1628 .binder_transaction =
1629 LIST_HEAD_INIT(security_hook_heads.binder_transaction),
1630 .binder_transfer_binder =
1631 LIST_HEAD_INIT(security_hook_heads.binder_transfer_binder),
1632 .binder_transfer_file =
1633 LIST_HEAD_INIT(security_hook_heads.binder_transfer_file),
1635 .ptrace_access_check =
1636 LIST_HEAD_INIT(security_hook_heads.ptrace_access_check),
1637 .ptrace_traceme =
1638 LIST_HEAD_INIT(security_hook_heads.ptrace_traceme),
1639 .capget = LIST_HEAD_INIT(security_hook_heads.capget),
1640 .capset = LIST_HEAD_INIT(security_hook_heads.capset),
1641 .capable = LIST_HEAD_INIT(security_hook_heads.capable),
1642 .quotactl = LIST_HEAD_INIT(security_hook_heads.quotactl),
1643 .quota_on = LIST_HEAD_INIT(security_hook_heads.quota_on),
1644 .syslog = LIST_HEAD_INIT(security_hook_heads.syslog),
1645 .settime = LIST_HEAD_INIT(security_hook_heads.settime),
1646 .vm_enough_memory =
1647 LIST_HEAD_INIT(security_hook_heads.vm_enough_memory),
1648 .bprm_set_creds =
1649 LIST_HEAD_INIT(security_hook_heads.bprm_set_creds),
1650 .bprm_check_security =
1651 LIST_HEAD_INIT(security_hook_heads.bprm_check_security),
1652 .bprm_secureexec =
1653 LIST_HEAD_INIT(security_hook_heads.bprm_secureexec),
1654 .bprm_committing_creds =
1655 LIST_HEAD_INIT(security_hook_heads.bprm_committing_creds),
1656 .bprm_committed_creds =
1657 LIST_HEAD_INIT(security_hook_heads.bprm_committed_creds),
1658 .sb_alloc_security =
1659 LIST_HEAD_INIT(security_hook_heads.sb_alloc_security),
1660 .sb_free_security =
1661 LIST_HEAD_INIT(security_hook_heads.sb_free_security),
1662 .sb_copy_data = LIST_HEAD_INIT(security_hook_heads.sb_copy_data),
1663 .sb_remount = LIST_HEAD_INIT(security_hook_heads.sb_remount),
1664 .sb_kern_mount =
1665 LIST_HEAD_INIT(security_hook_heads.sb_kern_mount),
1666 .sb_show_options =
1667 LIST_HEAD_INIT(security_hook_heads.sb_show_options),
1668 .sb_statfs = LIST_HEAD_INIT(security_hook_heads.sb_statfs),
1669 .sb_mount = LIST_HEAD_INIT(security_hook_heads.sb_mount),
1670 .sb_umount = LIST_HEAD_INIT(security_hook_heads.sb_umount),
1671 .sb_pivotroot = LIST_HEAD_INIT(security_hook_heads.sb_pivotroot),
1672 .sb_set_mnt_opts =
1673 LIST_HEAD_INIT(security_hook_heads.sb_set_mnt_opts),
1674 .sb_clone_mnt_opts =
1675 LIST_HEAD_INIT(security_hook_heads.sb_clone_mnt_opts),
1676 .sb_parse_opts_str =
1677 LIST_HEAD_INIT(security_hook_heads.sb_parse_opts_str),
1678 .dentry_init_security =
1679 LIST_HEAD_INIT(security_hook_heads.dentry_init_security),
1680 .dentry_create_files_as =
1681 LIST_HEAD_INIT(security_hook_heads.dentry_create_files_as),
1682 #ifdef CONFIG_SECURITY_PATH
1683 .path_unlink = LIST_HEAD_INIT(security_hook_heads.path_unlink),
1684 .path_mkdir = LIST_HEAD_INIT(security_hook_heads.path_mkdir),
1685 .path_rmdir = LIST_HEAD_INIT(security_hook_heads.path_rmdir),
1686 .path_mknod = LIST_HEAD_INIT(security_hook_heads.path_mknod),
1687 .path_truncate =
1688 LIST_HEAD_INIT(security_hook_heads.path_truncate),
1689 .path_symlink = LIST_HEAD_INIT(security_hook_heads.path_symlink),
1690 .path_link = LIST_HEAD_INIT(security_hook_heads.path_link),
1691 .path_rename = LIST_HEAD_INIT(security_hook_heads.path_rename),
1692 .path_chmod = LIST_HEAD_INIT(security_hook_heads.path_chmod),
1693 .path_chown = LIST_HEAD_INIT(security_hook_heads.path_chown),
1694 .path_chroot = LIST_HEAD_INIT(security_hook_heads.path_chroot),
1695 #endif
1696 .inode_alloc_security =
1697 LIST_HEAD_INIT(security_hook_heads.inode_alloc_security),
1698 .inode_free_security =
1699 LIST_HEAD_INIT(security_hook_heads.inode_free_security),
1700 .inode_init_security =
1701 LIST_HEAD_INIT(security_hook_heads.inode_init_security),
1702 .inode_create = LIST_HEAD_INIT(security_hook_heads.inode_create),
1703 .inode_link = LIST_HEAD_INIT(security_hook_heads.inode_link),
1704 .inode_unlink = LIST_HEAD_INIT(security_hook_heads.inode_unlink),
1705 .inode_symlink =
1706 LIST_HEAD_INIT(security_hook_heads.inode_symlink),
1707 .inode_mkdir = LIST_HEAD_INIT(security_hook_heads.inode_mkdir),
1708 .inode_rmdir = LIST_HEAD_INIT(security_hook_heads.inode_rmdir),
1709 .inode_mknod = LIST_HEAD_INIT(security_hook_heads.inode_mknod),
1710 .inode_rename = LIST_HEAD_INIT(security_hook_heads.inode_rename),
1711 .inode_readlink =
1712 LIST_HEAD_INIT(security_hook_heads.inode_readlink),
1713 .inode_follow_link =
1714 LIST_HEAD_INIT(security_hook_heads.inode_follow_link),
1715 .inode_permission =
1716 LIST_HEAD_INIT(security_hook_heads.inode_permission),
1717 .inode_setattr =
1718 LIST_HEAD_INIT(security_hook_heads.inode_setattr),
1719 .inode_getattr =
1720 LIST_HEAD_INIT(security_hook_heads.inode_getattr),
1721 .inode_setxattr =
1722 LIST_HEAD_INIT(security_hook_heads.inode_setxattr),
1723 .inode_post_setxattr =
1724 LIST_HEAD_INIT(security_hook_heads.inode_post_setxattr),
1725 .inode_getxattr =
1726 LIST_HEAD_INIT(security_hook_heads.inode_getxattr),
1727 .inode_listxattr =
1728 LIST_HEAD_INIT(security_hook_heads.inode_listxattr),
1729 .inode_removexattr =
1730 LIST_HEAD_INIT(security_hook_heads.inode_removexattr),
1731 .inode_need_killpriv =
1732 LIST_HEAD_INIT(security_hook_heads.inode_need_killpriv),
1733 .inode_killpriv =
1734 LIST_HEAD_INIT(security_hook_heads.inode_killpriv),
1735 .inode_getsecurity =
1736 LIST_HEAD_INIT(security_hook_heads.inode_getsecurity),
1737 .inode_setsecurity =
1738 LIST_HEAD_INIT(security_hook_heads.inode_setsecurity),
1739 .inode_listsecurity =
1740 LIST_HEAD_INIT(security_hook_heads.inode_listsecurity),
1741 .inode_getsecid =
1742 LIST_HEAD_INIT(security_hook_heads.inode_getsecid),
1743 .inode_copy_up =
1744 LIST_HEAD_INIT(security_hook_heads.inode_copy_up),
1745 .inode_copy_up_xattr =
1746 LIST_HEAD_INIT(security_hook_heads.inode_copy_up_xattr),
1747 .file_permission =
1748 LIST_HEAD_INIT(security_hook_heads.file_permission),
1749 .file_alloc_security =
1750 LIST_HEAD_INIT(security_hook_heads.file_alloc_security),
1751 .file_free_security =
1752 LIST_HEAD_INIT(security_hook_heads.file_free_security),
1753 .file_ioctl = LIST_HEAD_INIT(security_hook_heads.file_ioctl),
1754 .mmap_addr = LIST_HEAD_INIT(security_hook_heads.mmap_addr),
1755 .mmap_file = LIST_HEAD_INIT(security_hook_heads.mmap_file),
1756 .file_mprotect =
1757 LIST_HEAD_INIT(security_hook_heads.file_mprotect),
1758 .file_lock = LIST_HEAD_INIT(security_hook_heads.file_lock),
1759 .file_fcntl = LIST_HEAD_INIT(security_hook_heads.file_fcntl),
1760 .file_set_fowner =
1761 LIST_HEAD_INIT(security_hook_heads.file_set_fowner),
1762 .file_send_sigiotask =
1763 LIST_HEAD_INIT(security_hook_heads.file_send_sigiotask),
1764 .file_receive = LIST_HEAD_INIT(security_hook_heads.file_receive),
1765 .file_open = LIST_HEAD_INIT(security_hook_heads.file_open),
1766 .task_create = LIST_HEAD_INIT(security_hook_heads.task_create),
1767 .task_free = LIST_HEAD_INIT(security_hook_heads.task_free),
1768 .cred_alloc_blank =
1769 LIST_HEAD_INIT(security_hook_heads.cred_alloc_blank),
1770 .cred_free = LIST_HEAD_INIT(security_hook_heads.cred_free),
1771 .cred_prepare = LIST_HEAD_INIT(security_hook_heads.cred_prepare),
1772 .cred_transfer =
1773 LIST_HEAD_INIT(security_hook_heads.cred_transfer),
1774 .kernel_act_as =
1775 LIST_HEAD_INIT(security_hook_heads.kernel_act_as),
1776 .kernel_create_files_as =
1777 LIST_HEAD_INIT(security_hook_heads.kernel_create_files_as),
1778 .kernel_module_request =
1779 LIST_HEAD_INIT(security_hook_heads.kernel_module_request),
1780 .kernel_read_file =
1781 LIST_HEAD_INIT(security_hook_heads.kernel_read_file),
1782 .kernel_post_read_file =
1783 LIST_HEAD_INIT(security_hook_heads.kernel_post_read_file),
1784 .task_fix_setuid =
1785 LIST_HEAD_INIT(security_hook_heads.task_fix_setuid),
1786 .task_setpgid = LIST_HEAD_INIT(security_hook_heads.task_setpgid),
1787 .task_getpgid = LIST_HEAD_INIT(security_hook_heads.task_getpgid),
1788 .task_getsid = LIST_HEAD_INIT(security_hook_heads.task_getsid),
1789 .task_getsecid =
1790 LIST_HEAD_INIT(security_hook_heads.task_getsecid),
1791 .task_setnice = LIST_HEAD_INIT(security_hook_heads.task_setnice),
1792 .task_setioprio =
1793 LIST_HEAD_INIT(security_hook_heads.task_setioprio),
1794 .task_getioprio =
1795 LIST_HEAD_INIT(security_hook_heads.task_getioprio),
1796 .task_setrlimit =
1797 LIST_HEAD_INIT(security_hook_heads.task_setrlimit),
1798 .task_setscheduler =
1799 LIST_HEAD_INIT(security_hook_heads.task_setscheduler),
1800 .task_getscheduler =
1801 LIST_HEAD_INIT(security_hook_heads.task_getscheduler),
1802 .task_movememory =
1803 LIST_HEAD_INIT(security_hook_heads.task_movememory),
1804 .task_kill = LIST_HEAD_INIT(security_hook_heads.task_kill),
1805 .task_prctl = LIST_HEAD_INIT(security_hook_heads.task_prctl),
1806 .task_to_inode =
1807 LIST_HEAD_INIT(security_hook_heads.task_to_inode),
1808 .ipc_permission =
1809 LIST_HEAD_INIT(security_hook_heads.ipc_permission),
1810 .ipc_getsecid = LIST_HEAD_INIT(security_hook_heads.ipc_getsecid),
1811 .msg_msg_alloc_security =
1812 LIST_HEAD_INIT(security_hook_heads.msg_msg_alloc_security),
1813 .msg_msg_free_security =
1814 LIST_HEAD_INIT(security_hook_heads.msg_msg_free_security),
1815 .msg_queue_alloc_security =
1816 LIST_HEAD_INIT(security_hook_heads.msg_queue_alloc_security),
1817 .msg_queue_free_security =
1818 LIST_HEAD_INIT(security_hook_heads.msg_queue_free_security),
1819 .msg_queue_associate =
1820 LIST_HEAD_INIT(security_hook_heads.msg_queue_associate),
1821 .msg_queue_msgctl =
1822 LIST_HEAD_INIT(security_hook_heads.msg_queue_msgctl),
1823 .msg_queue_msgsnd =
1824 LIST_HEAD_INIT(security_hook_heads.msg_queue_msgsnd),
1825 .msg_queue_msgrcv =
1826 LIST_HEAD_INIT(security_hook_heads.msg_queue_msgrcv),
1827 .shm_alloc_security =
1828 LIST_HEAD_INIT(security_hook_heads.shm_alloc_security),
1829 .shm_free_security =
1830 LIST_HEAD_INIT(security_hook_heads.shm_free_security),
1831 .shm_associate =
1832 LIST_HEAD_INIT(security_hook_heads.shm_associate),
1833 .shm_shmctl = LIST_HEAD_INIT(security_hook_heads.shm_shmctl),
1834 .shm_shmat = LIST_HEAD_INIT(security_hook_heads.shm_shmat),
1835 .sem_alloc_security =
1836 LIST_HEAD_INIT(security_hook_heads.sem_alloc_security),
1837 .sem_free_security =
1838 LIST_HEAD_INIT(security_hook_heads.sem_free_security),
1839 .sem_associate =
1840 LIST_HEAD_INIT(security_hook_heads.sem_associate),
1841 .sem_semctl = LIST_HEAD_INIT(security_hook_heads.sem_semctl),
1842 .sem_semop = LIST_HEAD_INIT(security_hook_heads.sem_semop),
1843 .netlink_send = LIST_HEAD_INIT(security_hook_heads.netlink_send),
1844 .d_instantiate =
1845 LIST_HEAD_INIT(security_hook_heads.d_instantiate),
1846 .getprocattr = LIST_HEAD_INIT(security_hook_heads.getprocattr),
1847 .setprocattr = LIST_HEAD_INIT(security_hook_heads.setprocattr),
1848 .ismaclabel = LIST_HEAD_INIT(security_hook_heads.ismaclabel),
1849 .secid_to_secctx =
1850 LIST_HEAD_INIT(security_hook_heads.secid_to_secctx),
1851 .secctx_to_secid =
1852 LIST_HEAD_INIT(security_hook_heads.secctx_to_secid),
1853 .release_secctx =
1854 LIST_HEAD_INIT(security_hook_heads.release_secctx),
1855 .inode_invalidate_secctx =
1856 LIST_HEAD_INIT(security_hook_heads.inode_invalidate_secctx),
1857 .inode_notifysecctx =
1858 LIST_HEAD_INIT(security_hook_heads.inode_notifysecctx),
1859 .inode_setsecctx =
1860 LIST_HEAD_INIT(security_hook_heads.inode_setsecctx),
1861 .inode_getsecctx =
1862 LIST_HEAD_INIT(security_hook_heads.inode_getsecctx),
1863 #ifdef CONFIG_SECURITY_NETWORK
1864 .unix_stream_connect =
1865 LIST_HEAD_INIT(security_hook_heads.unix_stream_connect),
1866 .unix_may_send =
1867 LIST_HEAD_INIT(security_hook_heads.unix_may_send),
1868 .socket_create =
1869 LIST_HEAD_INIT(security_hook_heads.socket_create),
1870 .socket_post_create =
1871 LIST_HEAD_INIT(security_hook_heads.socket_post_create),
1872 .socket_bind = LIST_HEAD_INIT(security_hook_heads.socket_bind),
1873 .socket_connect =
1874 LIST_HEAD_INIT(security_hook_heads.socket_connect),
1875 .socket_listen =
1876 LIST_HEAD_INIT(security_hook_heads.socket_listen),
1877 .socket_accept =
1878 LIST_HEAD_INIT(security_hook_heads.socket_accept),
1879 .socket_sendmsg =
1880 LIST_HEAD_INIT(security_hook_heads.socket_sendmsg),
1881 .socket_recvmsg =
1882 LIST_HEAD_INIT(security_hook_heads.socket_recvmsg),
1883 .socket_getsockname =
1884 LIST_HEAD_INIT(security_hook_heads.socket_getsockname),
1885 .socket_getpeername =
1886 LIST_HEAD_INIT(security_hook_heads.socket_getpeername),
1887 .socket_getsockopt =
1888 LIST_HEAD_INIT(security_hook_heads.socket_getsockopt),
1889 .socket_setsockopt =
1890 LIST_HEAD_INIT(security_hook_heads.socket_setsockopt),
1891 .socket_shutdown =
1892 LIST_HEAD_INIT(security_hook_heads.socket_shutdown),
1893 .socket_sock_rcv_skb =
1894 LIST_HEAD_INIT(security_hook_heads.socket_sock_rcv_skb),
1895 .socket_getpeersec_stream =
1896 LIST_HEAD_INIT(security_hook_heads.socket_getpeersec_stream),
1897 .socket_getpeersec_dgram =
1898 LIST_HEAD_INIT(security_hook_heads.socket_getpeersec_dgram),
1899 .sk_alloc_security =
1900 LIST_HEAD_INIT(security_hook_heads.sk_alloc_security),
1901 .sk_free_security =
1902 LIST_HEAD_INIT(security_hook_heads.sk_free_security),
1903 .sk_clone_security =
1904 LIST_HEAD_INIT(security_hook_heads.sk_clone_security),
1905 .sk_getsecid = LIST_HEAD_INIT(security_hook_heads.sk_getsecid),
1906 .sock_graft = LIST_HEAD_INIT(security_hook_heads.sock_graft),
1907 .inet_conn_request =
1908 LIST_HEAD_INIT(security_hook_heads.inet_conn_request),
1909 .inet_csk_clone =
1910 LIST_HEAD_INIT(security_hook_heads.inet_csk_clone),
1911 .inet_conn_established =
1912 LIST_HEAD_INIT(security_hook_heads.inet_conn_established),
1913 .secmark_relabel_packet =
1914 LIST_HEAD_INIT(security_hook_heads.secmark_relabel_packet),
1915 .secmark_refcount_inc =
1916 LIST_HEAD_INIT(security_hook_heads.secmark_refcount_inc),
1917 .secmark_refcount_dec =
1918 LIST_HEAD_INIT(security_hook_heads.secmark_refcount_dec),
1919 .req_classify_flow =
1920 LIST_HEAD_INIT(security_hook_heads.req_classify_flow),
1921 .tun_dev_alloc_security =
1922 LIST_HEAD_INIT(security_hook_heads.tun_dev_alloc_security),
1923 .tun_dev_free_security =
1924 LIST_HEAD_INIT(security_hook_heads.tun_dev_free_security),
1925 .tun_dev_create =
1926 LIST_HEAD_INIT(security_hook_heads.tun_dev_create),
1927 .tun_dev_attach_queue =
1928 LIST_HEAD_INIT(security_hook_heads.tun_dev_attach_queue),
1929 .tun_dev_attach =
1930 LIST_HEAD_INIT(security_hook_heads.tun_dev_attach),
1931 .tun_dev_open = LIST_HEAD_INIT(security_hook_heads.tun_dev_open),
1932 #endif /* CONFIG_SECURITY_NETWORK */
1933 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1934 .xfrm_policy_alloc_security =
1935 LIST_HEAD_INIT(security_hook_heads.xfrm_policy_alloc_security),
1936 .xfrm_policy_clone_security =
1937 LIST_HEAD_INIT(security_hook_heads.xfrm_policy_clone_security),
1938 .xfrm_policy_free_security =
1939 LIST_HEAD_INIT(security_hook_heads.xfrm_policy_free_security),
1940 .xfrm_policy_delete_security =
1941 LIST_HEAD_INIT(security_hook_heads.xfrm_policy_delete_security),
1942 .xfrm_state_alloc =
1943 LIST_HEAD_INIT(security_hook_heads.xfrm_state_alloc),
1944 .xfrm_state_alloc_acquire =
1945 LIST_HEAD_INIT(security_hook_heads.xfrm_state_alloc_acquire),
1946 .xfrm_state_free_security =
1947 LIST_HEAD_INIT(security_hook_heads.xfrm_state_free_security),
1948 .xfrm_state_delete_security =
1949 LIST_HEAD_INIT(security_hook_heads.xfrm_state_delete_security),
1950 .xfrm_policy_lookup =
1951 LIST_HEAD_INIT(security_hook_heads.xfrm_policy_lookup),
1952 .xfrm_state_pol_flow_match =
1953 LIST_HEAD_INIT(security_hook_heads.xfrm_state_pol_flow_match),
1954 .xfrm_decode_session =
1955 LIST_HEAD_INIT(security_hook_heads.xfrm_decode_session),
1956 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1957 #ifdef CONFIG_KEYS
1958 .key_alloc = LIST_HEAD_INIT(security_hook_heads.key_alloc),
1959 .key_free = LIST_HEAD_INIT(security_hook_heads.key_free),
1960 .key_permission =
1961 LIST_HEAD_INIT(security_hook_heads.key_permission),
1962 .key_getsecurity =
1963 LIST_HEAD_INIT(security_hook_heads.key_getsecurity),
1964 #endif /* CONFIG_KEYS */
1965 #ifdef CONFIG_AUDIT
1966 .audit_rule_init =
1967 LIST_HEAD_INIT(security_hook_heads.audit_rule_init),
1968 .audit_rule_known =
1969 LIST_HEAD_INIT(security_hook_heads.audit_rule_known),
1970 .audit_rule_match =
1971 LIST_HEAD_INIT(security_hook_heads.audit_rule_match),
1972 .audit_rule_free =
1973 LIST_HEAD_INIT(security_hook_heads.audit_rule_free),
1974 #endif /* CONFIG_AUDIT */