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>
7 * Copyright (C) 2016 Mellanox Technologies
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
15 #include <linux/bpf.h>
16 #include <linux/capability.h>
17 #include <linux/dcache.h>
18 #include <linux/module.h>
19 #include <linux/init.h>
20 #include <linux/kernel.h>
21 #include <linux/lsm_hooks.h>
22 #include <linux/integrity.h>
23 #include <linux/ima.h>
24 #include <linux/evm.h>
25 #include <linux/fsnotify.h>
26 #include <linux/mman.h>
27 #include <linux/mount.h>
28 #include <linux/personality.h>
29 #include <linux/backing-dev.h>
30 #include <linux/string.h>
33 #include <trace/events/initcall.h>
35 #define MAX_LSM_EVM_XATTR 2
37 /* Maximum number of letters for an LSM name string */
38 #define SECURITY_NAME_MAX 10
40 struct security_hook_heads security_hook_heads __lsm_ro_after_init;
41 static ATOMIC_NOTIFIER_HEAD(lsm_notifier_chain);
44 /* Boot-time LSM user choice */
45 static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
46 CONFIG_DEFAULT_SECURITY;
48 static void __init do_security_initcalls(void)
52 call = __security_initcall_start;
53 trace_initcall_level("security");
54 while (call < __security_initcall_end) {
55 trace_initcall_start((*call));
57 trace_initcall_finish((*call), ret);
63 * security_init - initializes the security framework
65 * This should be called early in the kernel initialization sequence.
67 int __init security_init(void)
70 struct hlist_head *list = (struct hlist_head *) &security_hook_heads;
72 for (i = 0; i < sizeof(security_hook_heads) / sizeof(struct hlist_head);
74 INIT_HLIST_HEAD(&list[i]);
75 pr_info("Security Framework initialized\n");
78 * Load minor LSMs, with the capability module always first.
80 capability_add_hooks();
85 * Load all the remaining security modules.
87 do_security_initcalls();
92 /* Save user chosen LSM */
93 static int __init choose_lsm(char *str)
95 strncpy(chosen_lsm, str, SECURITY_NAME_MAX);
98 __setup("security=", choose_lsm);
100 static bool match_last_lsm(const char *list, const char *lsm)
104 if (WARN_ON(!list || !lsm))
106 last = strrchr(list, ',');
108 /* Pass the comma, strcmp() will check for '\0' */
112 return !strcmp(last, lsm);
115 static int lsm_append(char *new, char **result)
119 if (*result == NULL) {
120 *result = kstrdup(new, GFP_KERNEL);
124 /* Check if it is the last registered name */
125 if (match_last_lsm(*result, new))
127 cp = kasprintf(GFP_KERNEL, "%s,%s", *result, new);
137 * security_module_enable - Load given security module on boot ?
138 * @module: the name of the module
140 * Each LSM must pass this method before registering its own operations
141 * to avoid security registration races. This method may also be used
142 * to check if your LSM is currently loaded during kernel initialization.
148 * - The passed LSM is the one chosen by user at boot time,
149 * - or the passed LSM is configured as the default and the user did not
150 * choose an alternate LSM at boot time.
152 * Otherwise, return false.
154 int __init security_module_enable(const char *module)
156 return !strcmp(module, chosen_lsm);
160 * security_add_hooks - Add a modules hooks to the hook lists.
161 * @hooks: the hooks to add
162 * @count: the number of hooks to add
163 * @lsm: the name of the security module
165 * Each LSM has to register its hooks with the infrastructure.
167 void __init security_add_hooks(struct security_hook_list *hooks, int count,
172 for (i = 0; i < count; i++) {
174 hlist_add_tail_rcu(&hooks[i].list, hooks[i].head);
176 if (lsm_append(lsm, &lsm_names) < 0)
177 panic("%s - Cannot get early memory.\n", __func__);
180 int call_lsm_notifier(enum lsm_event event, void *data)
182 return atomic_notifier_call_chain(&lsm_notifier_chain, event, data);
184 EXPORT_SYMBOL(call_lsm_notifier);
186 int register_lsm_notifier(struct notifier_block *nb)
188 return atomic_notifier_chain_register(&lsm_notifier_chain, nb);
190 EXPORT_SYMBOL(register_lsm_notifier);
192 int unregister_lsm_notifier(struct notifier_block *nb)
194 return atomic_notifier_chain_unregister(&lsm_notifier_chain, nb);
196 EXPORT_SYMBOL(unregister_lsm_notifier);
199 * Hook list operation macros.
202 * This is a hook that does not return a value.
205 * This is a hook that returns a value.
208 #define call_void_hook(FUNC, ...) \
210 struct security_hook_list *P; \
212 hlist_for_each_entry(P, &security_hook_heads.FUNC, list) \
213 P->hook.FUNC(__VA_ARGS__); \
216 #define call_int_hook(FUNC, IRC, ...) ({ \
219 struct security_hook_list *P; \
221 hlist_for_each_entry(P, &security_hook_heads.FUNC, list) { \
222 RC = P->hook.FUNC(__VA_ARGS__); \
230 /* Security operations */
232 int security_binder_set_context_mgr(struct task_struct *mgr)
234 return call_int_hook(binder_set_context_mgr, 0, mgr);
237 int security_binder_transaction(struct task_struct *from,
238 struct task_struct *to)
240 return call_int_hook(binder_transaction, 0, from, to);
243 int security_binder_transfer_binder(struct task_struct *from,
244 struct task_struct *to)
246 return call_int_hook(binder_transfer_binder, 0, from, to);
249 int security_binder_transfer_file(struct task_struct *from,
250 struct task_struct *to, struct file *file)
252 return call_int_hook(binder_transfer_file, 0, from, to, file);
255 int security_ptrace_access_check(struct task_struct *child, unsigned int mode)
257 return call_int_hook(ptrace_access_check, 0, child, mode);
260 int security_ptrace_traceme(struct task_struct *parent)
262 return call_int_hook(ptrace_traceme, 0, parent);
265 int security_capget(struct task_struct *target,
266 kernel_cap_t *effective,
267 kernel_cap_t *inheritable,
268 kernel_cap_t *permitted)
270 return call_int_hook(capget, 0, target,
271 effective, inheritable, permitted);
274 int security_capset(struct cred *new, const struct cred *old,
275 const kernel_cap_t *effective,
276 const kernel_cap_t *inheritable,
277 const kernel_cap_t *permitted)
279 return call_int_hook(capset, 0, new, old,
280 effective, inheritable, permitted);
283 int security_capable(const struct cred *cred, struct user_namespace *ns,
286 return call_int_hook(capable, 0, cred, ns, cap, SECURITY_CAP_AUDIT);
289 int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
292 return call_int_hook(capable, 0, cred, ns, cap, SECURITY_CAP_NOAUDIT);
295 int security_quotactl(int cmds, int type, int id, struct super_block *sb)
297 return call_int_hook(quotactl, 0, cmds, type, id, sb);
300 int security_quota_on(struct dentry *dentry)
302 return call_int_hook(quota_on, 0, dentry);
305 int security_syslog(int type)
307 return call_int_hook(syslog, 0, type);
310 int security_settime64(const struct timespec64 *ts, const struct timezone *tz)
312 return call_int_hook(settime, 0, ts, tz);
315 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
317 struct security_hook_list *hp;
318 int cap_sys_admin = 1;
322 * The module will respond with a positive value if
323 * it thinks the __vm_enough_memory() call should be
324 * made with the cap_sys_admin set. If all of the modules
325 * agree that it should be set it will. If any module
326 * thinks it should not be set it won't.
328 hlist_for_each_entry(hp, &security_hook_heads.vm_enough_memory, list) {
329 rc = hp->hook.vm_enough_memory(mm, pages);
335 return __vm_enough_memory(mm, pages, cap_sys_admin);
338 int security_bprm_set_creds(struct linux_binprm *bprm)
340 return call_int_hook(bprm_set_creds, 0, bprm);
343 int security_bprm_check(struct linux_binprm *bprm)
347 ret = call_int_hook(bprm_check_security, 0, bprm);
350 return ima_bprm_check(bprm);
353 void security_bprm_committing_creds(struct linux_binprm *bprm)
355 call_void_hook(bprm_committing_creds, bprm);
358 void security_bprm_committed_creds(struct linux_binprm *bprm)
360 call_void_hook(bprm_committed_creds, bprm);
363 int security_sb_alloc(struct super_block *sb)
365 return call_int_hook(sb_alloc_security, 0, sb);
368 void security_sb_free(struct super_block *sb)
370 call_void_hook(sb_free_security, sb);
373 int security_sb_copy_data(char *orig, char *copy)
375 return call_int_hook(sb_copy_data, 0, orig, copy);
377 EXPORT_SYMBOL(security_sb_copy_data);
379 int security_sb_remount(struct super_block *sb, void *data)
381 return call_int_hook(sb_remount, 0, sb, data);
384 int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
386 return call_int_hook(sb_kern_mount, 0, sb, flags, data);
389 int security_sb_show_options(struct seq_file *m, struct super_block *sb)
391 return call_int_hook(sb_show_options, 0, m, sb);
394 int security_sb_statfs(struct dentry *dentry)
396 return call_int_hook(sb_statfs, 0, dentry);
399 int security_sb_mount(const char *dev_name, const struct path *path,
400 const char *type, unsigned long flags, void *data)
402 return call_int_hook(sb_mount, 0, dev_name, path, type, flags, data);
405 int security_sb_umount(struct vfsmount *mnt, int flags)
407 return call_int_hook(sb_umount, 0, mnt, flags);
410 int security_sb_pivotroot(const struct path *old_path, const struct path *new_path)
412 return call_int_hook(sb_pivotroot, 0, old_path, new_path);
415 int security_sb_set_mnt_opts(struct super_block *sb,
416 struct security_mnt_opts *opts,
417 unsigned long kern_flags,
418 unsigned long *set_kern_flags)
420 return call_int_hook(sb_set_mnt_opts,
421 opts->num_mnt_opts ? -EOPNOTSUPP : 0, sb,
422 opts, kern_flags, set_kern_flags);
424 EXPORT_SYMBOL(security_sb_set_mnt_opts);
426 int security_sb_clone_mnt_opts(const struct super_block *oldsb,
427 struct super_block *newsb,
428 unsigned long kern_flags,
429 unsigned long *set_kern_flags)
431 return call_int_hook(sb_clone_mnt_opts, 0, oldsb, newsb,
432 kern_flags, set_kern_flags);
434 EXPORT_SYMBOL(security_sb_clone_mnt_opts);
436 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
438 return call_int_hook(sb_parse_opts_str, 0, options, opts);
440 EXPORT_SYMBOL(security_sb_parse_opts_str);
442 int security_inode_alloc(struct inode *inode)
444 inode->i_security = NULL;
445 return call_int_hook(inode_alloc_security, 0, inode);
448 void security_inode_free(struct inode *inode)
450 integrity_inode_free(inode);
451 call_void_hook(inode_free_security, inode);
454 int security_dentry_init_security(struct dentry *dentry, int mode,
455 const struct qstr *name, void **ctx,
458 return call_int_hook(dentry_init_security, -EOPNOTSUPP, dentry, mode,
461 EXPORT_SYMBOL(security_dentry_init_security);
463 int security_dentry_create_files_as(struct dentry *dentry, int mode,
465 const struct cred *old, struct cred *new)
467 return call_int_hook(dentry_create_files_as, 0, dentry, mode,
470 EXPORT_SYMBOL(security_dentry_create_files_as);
472 int security_inode_init_security(struct inode *inode, struct inode *dir,
473 const struct qstr *qstr,
474 const initxattrs initxattrs, void *fs_data)
476 struct xattr new_xattrs[MAX_LSM_EVM_XATTR + 1];
477 struct xattr *lsm_xattr, *evm_xattr, *xattr;
480 if (unlikely(IS_PRIVATE(inode)))
484 return call_int_hook(inode_init_security, -EOPNOTSUPP, inode,
485 dir, qstr, NULL, NULL, NULL);
486 memset(new_xattrs, 0, sizeof(new_xattrs));
487 lsm_xattr = new_xattrs;
488 ret = call_int_hook(inode_init_security, -EOPNOTSUPP, inode, dir, qstr,
491 &lsm_xattr->value_len);
495 evm_xattr = lsm_xattr + 1;
496 ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr);
499 ret = initxattrs(inode, new_xattrs, fs_data);
501 for (xattr = new_xattrs; xattr->value != NULL; xattr++)
503 return (ret == -EOPNOTSUPP) ? 0 : ret;
505 EXPORT_SYMBOL(security_inode_init_security);
507 int security_old_inode_init_security(struct inode *inode, struct inode *dir,
508 const struct qstr *qstr, const char **name,
509 void **value, size_t *len)
511 if (unlikely(IS_PRIVATE(inode)))
513 return call_int_hook(inode_init_security, -EOPNOTSUPP, inode, dir,
514 qstr, name, value, len);
516 EXPORT_SYMBOL(security_old_inode_init_security);
518 #ifdef CONFIG_SECURITY_PATH
519 int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
522 if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
524 return call_int_hook(path_mknod, 0, dir, dentry, mode, dev);
526 EXPORT_SYMBOL(security_path_mknod);
528 int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode)
530 if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
532 return call_int_hook(path_mkdir, 0, dir, dentry, mode);
534 EXPORT_SYMBOL(security_path_mkdir);
536 int security_path_rmdir(const struct path *dir, struct dentry *dentry)
538 if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
540 return call_int_hook(path_rmdir, 0, dir, dentry);
543 int security_path_unlink(const struct path *dir, struct dentry *dentry)
545 if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
547 return call_int_hook(path_unlink, 0, dir, dentry);
549 EXPORT_SYMBOL(security_path_unlink);
551 int security_path_symlink(const struct path *dir, struct dentry *dentry,
552 const char *old_name)
554 if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
556 return call_int_hook(path_symlink, 0, dir, dentry, old_name);
559 int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
560 struct dentry *new_dentry)
562 if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry))))
564 return call_int_hook(path_link, 0, old_dentry, new_dir, new_dentry);
567 int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
568 const struct path *new_dir, struct dentry *new_dentry,
571 if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) ||
572 (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry)))))
575 if (flags & RENAME_EXCHANGE) {
576 int err = call_int_hook(path_rename, 0, new_dir, new_dentry,
577 old_dir, old_dentry);
582 return call_int_hook(path_rename, 0, old_dir, old_dentry, new_dir,
585 EXPORT_SYMBOL(security_path_rename);
587 int security_path_truncate(const struct path *path)
589 if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
591 return call_int_hook(path_truncate, 0, path);
594 int security_path_chmod(const struct path *path, umode_t mode)
596 if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
598 return call_int_hook(path_chmod, 0, path, mode);
601 int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
603 if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
605 return call_int_hook(path_chown, 0, path, uid, gid);
608 int security_path_chroot(const struct path *path)
610 return call_int_hook(path_chroot, 0, path);
614 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode)
616 if (unlikely(IS_PRIVATE(dir)))
618 return call_int_hook(inode_create, 0, dir, dentry, mode);
620 EXPORT_SYMBOL_GPL(security_inode_create);
622 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
623 struct dentry *new_dentry)
625 if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry))))
627 return call_int_hook(inode_link, 0, old_dentry, dir, new_dentry);
630 int security_inode_unlink(struct inode *dir, struct dentry *dentry)
632 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
634 return call_int_hook(inode_unlink, 0, dir, dentry);
637 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
638 const char *old_name)
640 if (unlikely(IS_PRIVATE(dir)))
642 return call_int_hook(inode_symlink, 0, dir, dentry, old_name);
645 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
647 if (unlikely(IS_PRIVATE(dir)))
649 return call_int_hook(inode_mkdir, 0, dir, dentry, mode);
651 EXPORT_SYMBOL_GPL(security_inode_mkdir);
653 int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
655 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
657 return call_int_hook(inode_rmdir, 0, dir, dentry);
660 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
662 if (unlikely(IS_PRIVATE(dir)))
664 return call_int_hook(inode_mknod, 0, dir, dentry, mode, dev);
667 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
668 struct inode *new_dir, struct dentry *new_dentry,
671 if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) ||
672 (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry)))))
675 if (flags & RENAME_EXCHANGE) {
676 int err = call_int_hook(inode_rename, 0, new_dir, new_dentry,
677 old_dir, old_dentry);
682 return call_int_hook(inode_rename, 0, old_dir, old_dentry,
683 new_dir, new_dentry);
686 int security_inode_readlink(struct dentry *dentry)
688 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
690 return call_int_hook(inode_readlink, 0, dentry);
693 int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
696 if (unlikely(IS_PRIVATE(inode)))
698 return call_int_hook(inode_follow_link, 0, dentry, inode, rcu);
701 int security_inode_permission(struct inode *inode, int mask)
703 if (unlikely(IS_PRIVATE(inode)))
705 return call_int_hook(inode_permission, 0, inode, mask);
708 int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
712 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
714 ret = call_int_hook(inode_setattr, 0, dentry, attr);
717 return evm_inode_setattr(dentry, attr);
719 EXPORT_SYMBOL_GPL(security_inode_setattr);
721 int security_inode_getattr(const struct path *path)
723 if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
725 return call_int_hook(inode_getattr, 0, path);
728 int security_inode_setxattr(struct dentry *dentry, const char *name,
729 const void *value, size_t size, int flags)
733 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
736 * SELinux and Smack integrate the cap call,
737 * so assume that all LSMs supplying this call do so.
739 ret = call_int_hook(inode_setxattr, 1, dentry, name, value, size,
743 ret = cap_inode_setxattr(dentry, name, value, size, flags);
746 ret = ima_inode_setxattr(dentry, name, value, size);
749 return evm_inode_setxattr(dentry, name, value, size);
752 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
753 const void *value, size_t size, int flags)
755 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
757 call_void_hook(inode_post_setxattr, dentry, name, value, size, flags);
758 evm_inode_post_setxattr(dentry, name, value, size);
761 int security_inode_getxattr(struct dentry *dentry, const char *name)
763 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
765 return call_int_hook(inode_getxattr, 0, dentry, name);
768 int security_inode_listxattr(struct dentry *dentry)
770 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
772 return call_int_hook(inode_listxattr, 0, dentry);
775 int security_inode_removexattr(struct dentry *dentry, const char *name)
779 if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
782 * SELinux and Smack integrate the cap call,
783 * so assume that all LSMs supplying this call do so.
785 ret = call_int_hook(inode_removexattr, 1, dentry, name);
787 ret = cap_inode_removexattr(dentry, name);
790 ret = ima_inode_removexattr(dentry, name);
793 return evm_inode_removexattr(dentry, name);
796 int security_inode_need_killpriv(struct dentry *dentry)
798 return call_int_hook(inode_need_killpriv, 0, dentry);
801 int security_inode_killpriv(struct dentry *dentry)
803 return call_int_hook(inode_killpriv, 0, dentry);
806 int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
808 struct security_hook_list *hp;
811 if (unlikely(IS_PRIVATE(inode)))
814 * Only one module will provide an attribute with a given name.
816 hlist_for_each_entry(hp, &security_hook_heads.inode_getsecurity, list) {
817 rc = hp->hook.inode_getsecurity(inode, name, buffer, alloc);
818 if (rc != -EOPNOTSUPP)
824 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
826 struct security_hook_list *hp;
829 if (unlikely(IS_PRIVATE(inode)))
832 * Only one module will provide an attribute with a given name.
834 hlist_for_each_entry(hp, &security_hook_heads.inode_setsecurity, list) {
835 rc = hp->hook.inode_setsecurity(inode, name, value, size,
837 if (rc != -EOPNOTSUPP)
843 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
845 if (unlikely(IS_PRIVATE(inode)))
847 return call_int_hook(inode_listsecurity, 0, inode, buffer, buffer_size);
849 EXPORT_SYMBOL(security_inode_listsecurity);
851 void security_inode_getsecid(struct inode *inode, u32 *secid)
853 call_void_hook(inode_getsecid, inode, secid);
856 int security_inode_copy_up(struct dentry *src, struct cred **new)
858 return call_int_hook(inode_copy_up, 0, src, new);
860 EXPORT_SYMBOL(security_inode_copy_up);
862 int security_inode_copy_up_xattr(const char *name)
864 return call_int_hook(inode_copy_up_xattr, -EOPNOTSUPP, name);
866 EXPORT_SYMBOL(security_inode_copy_up_xattr);
868 int security_file_permission(struct file *file, int mask)
872 ret = call_int_hook(file_permission, 0, file, mask);
876 return fsnotify_perm(file, mask);
879 int security_file_alloc(struct file *file)
881 return call_int_hook(file_alloc_security, 0, file);
884 void security_file_free(struct file *file)
886 call_void_hook(file_free_security, file);
889 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
891 return call_int_hook(file_ioctl, 0, file, cmd, arg);
894 static inline unsigned long mmap_prot(struct file *file, unsigned long prot)
897 * Does we have PROT_READ and does the application expect
898 * it to imply PROT_EXEC? If not, nothing to talk about...
900 if ((prot & (PROT_READ | PROT_EXEC)) != PROT_READ)
902 if (!(current->personality & READ_IMPLIES_EXEC))
905 * if that's an anonymous mapping, let it.
908 return prot | PROT_EXEC;
910 * ditto if it's not on noexec mount, except that on !MMU we need
911 * NOMMU_MAP_EXEC (== VM_MAYEXEC) in this case
913 if (!path_noexec(&file->f_path)) {
915 if (file->f_op->mmap_capabilities) {
916 unsigned caps = file->f_op->mmap_capabilities(file);
917 if (!(caps & NOMMU_MAP_EXEC))
921 return prot | PROT_EXEC;
923 /* anything on noexec mount won't get PROT_EXEC */
927 int security_mmap_file(struct file *file, unsigned long prot,
931 ret = call_int_hook(mmap_file, 0, file, prot,
932 mmap_prot(file, prot), flags);
935 return ima_file_mmap(file, prot);
938 int security_mmap_addr(unsigned long addr)
940 return call_int_hook(mmap_addr, 0, addr);
943 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
946 return call_int_hook(file_mprotect, 0, vma, reqprot, prot);
949 int security_file_lock(struct file *file, unsigned int cmd)
951 return call_int_hook(file_lock, 0, file, cmd);
954 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
956 return call_int_hook(file_fcntl, 0, file, cmd, arg);
959 void security_file_set_fowner(struct file *file)
961 call_void_hook(file_set_fowner, file);
964 int security_file_send_sigiotask(struct task_struct *tsk,
965 struct fown_struct *fown, int sig)
967 return call_int_hook(file_send_sigiotask, 0, tsk, fown, sig);
970 int security_file_receive(struct file *file)
972 return call_int_hook(file_receive, 0, file);
975 int security_file_open(struct file *file)
979 ret = call_int_hook(file_open, 0, file);
983 return fsnotify_perm(file, MAY_OPEN);
986 int security_task_alloc(struct task_struct *task, unsigned long clone_flags)
988 return call_int_hook(task_alloc, 0, task, clone_flags);
991 void security_task_free(struct task_struct *task)
993 call_void_hook(task_free, task);
996 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
998 return call_int_hook(cred_alloc_blank, 0, cred, gfp);
1001 void security_cred_free(struct cred *cred)
1003 call_void_hook(cred_free, cred);
1006 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
1008 return call_int_hook(cred_prepare, 0, new, old, gfp);
1011 void security_transfer_creds(struct cred *new, const struct cred *old)
1013 call_void_hook(cred_transfer, new, old);
1016 void security_cred_getsecid(const struct cred *c, u32 *secid)
1019 call_void_hook(cred_getsecid, c, secid);
1021 EXPORT_SYMBOL(security_cred_getsecid);
1023 int security_kernel_act_as(struct cred *new, u32 secid)
1025 return call_int_hook(kernel_act_as, 0, new, secid);
1028 int security_kernel_create_files_as(struct cred *new, struct inode *inode)
1030 return call_int_hook(kernel_create_files_as, 0, new, inode);
1033 int security_kernel_module_request(char *kmod_name)
1035 return call_int_hook(kernel_module_request, 0, kmod_name);
1038 int security_kernel_read_file(struct file *file, enum kernel_read_file_id id)
1042 ret = call_int_hook(kernel_read_file, 0, file, id);
1045 return ima_read_file(file, id);
1047 EXPORT_SYMBOL_GPL(security_kernel_read_file);
1049 int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
1050 enum kernel_read_file_id id)
1054 ret = call_int_hook(kernel_post_read_file, 0, file, buf, size, id);
1057 return ima_post_read_file(file, buf, size, id);
1059 EXPORT_SYMBOL_GPL(security_kernel_post_read_file);
1061 int security_kernel_load_data(enum kernel_load_data_id id)
1065 ret = call_int_hook(kernel_load_data, 0, id);
1068 return ima_load_data(id);
1070 EXPORT_SYMBOL_GPL(security_kernel_load_data);
1072 int security_task_fix_setuid(struct cred *new, const struct cred *old,
1075 return call_int_hook(task_fix_setuid, 0, new, old, flags);
1078 int security_task_setpgid(struct task_struct *p, pid_t pgid)
1080 return call_int_hook(task_setpgid, 0, p, pgid);
1083 int security_task_getpgid(struct task_struct *p)
1085 return call_int_hook(task_getpgid, 0, p);
1088 int security_task_getsid(struct task_struct *p)
1090 return call_int_hook(task_getsid, 0, p);
1093 void security_task_getsecid(struct task_struct *p, u32 *secid)
1096 call_void_hook(task_getsecid, p, secid);
1098 EXPORT_SYMBOL(security_task_getsecid);
1100 int security_task_setnice(struct task_struct *p, int nice)
1102 return call_int_hook(task_setnice, 0, p, nice);
1105 int security_task_setioprio(struct task_struct *p, int ioprio)
1107 return call_int_hook(task_setioprio, 0, p, ioprio);
1110 int security_task_getioprio(struct task_struct *p)
1112 return call_int_hook(task_getioprio, 0, p);
1115 int security_task_prlimit(const struct cred *cred, const struct cred *tcred,
1118 return call_int_hook(task_prlimit, 0, cred, tcred, flags);
1121 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
1122 struct rlimit *new_rlim)
1124 return call_int_hook(task_setrlimit, 0, p, resource, new_rlim);
1127 int security_task_setscheduler(struct task_struct *p)
1129 return call_int_hook(task_setscheduler, 0, p);
1132 int security_task_getscheduler(struct task_struct *p)
1134 return call_int_hook(task_getscheduler, 0, p);
1137 int security_task_movememory(struct task_struct *p)
1139 return call_int_hook(task_movememory, 0, p);
1142 int security_task_kill(struct task_struct *p, struct siginfo *info,
1143 int sig, const struct cred *cred)
1145 return call_int_hook(task_kill, 0, p, info, sig, cred);
1148 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
1149 unsigned long arg4, unsigned long arg5)
1153 struct security_hook_list *hp;
1155 hlist_for_each_entry(hp, &security_hook_heads.task_prctl, list) {
1156 thisrc = hp->hook.task_prctl(option, arg2, arg3, arg4, arg5);
1157 if (thisrc != -ENOSYS) {
1166 void security_task_to_inode(struct task_struct *p, struct inode *inode)
1168 call_void_hook(task_to_inode, p, inode);
1171 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
1173 return call_int_hook(ipc_permission, 0, ipcp, flag);
1176 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
1179 call_void_hook(ipc_getsecid, ipcp, secid);
1182 int security_msg_msg_alloc(struct msg_msg *msg)
1184 return call_int_hook(msg_msg_alloc_security, 0, msg);
1187 void security_msg_msg_free(struct msg_msg *msg)
1189 call_void_hook(msg_msg_free_security, msg);
1192 int security_msg_queue_alloc(struct kern_ipc_perm *msq)
1194 return call_int_hook(msg_queue_alloc_security, 0, msq);
1197 void security_msg_queue_free(struct kern_ipc_perm *msq)
1199 call_void_hook(msg_queue_free_security, msq);
1202 int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg)
1204 return call_int_hook(msg_queue_associate, 0, msq, msqflg);
1207 int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd)
1209 return call_int_hook(msg_queue_msgctl, 0, msq, cmd);
1212 int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
1213 struct msg_msg *msg, int msqflg)
1215 return call_int_hook(msg_queue_msgsnd, 0, msq, msg, msqflg);
1218 int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg,
1219 struct task_struct *target, long type, int mode)
1221 return call_int_hook(msg_queue_msgrcv, 0, msq, msg, target, type, mode);
1224 int security_shm_alloc(struct kern_ipc_perm *shp)
1226 return call_int_hook(shm_alloc_security, 0, shp);
1229 void security_shm_free(struct kern_ipc_perm *shp)
1231 call_void_hook(shm_free_security, shp);
1234 int security_shm_associate(struct kern_ipc_perm *shp, int shmflg)
1236 return call_int_hook(shm_associate, 0, shp, shmflg);
1239 int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd)
1241 return call_int_hook(shm_shmctl, 0, shp, cmd);
1244 int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg)
1246 return call_int_hook(shm_shmat, 0, shp, shmaddr, shmflg);
1249 int security_sem_alloc(struct kern_ipc_perm *sma)
1251 return call_int_hook(sem_alloc_security, 0, sma);
1254 void security_sem_free(struct kern_ipc_perm *sma)
1256 call_void_hook(sem_free_security, sma);
1259 int security_sem_associate(struct kern_ipc_perm *sma, int semflg)
1261 return call_int_hook(sem_associate, 0, sma, semflg);
1264 int security_sem_semctl(struct kern_ipc_perm *sma, int cmd)
1266 return call_int_hook(sem_semctl, 0, sma, cmd);
1269 int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops,
1270 unsigned nsops, int alter)
1272 return call_int_hook(sem_semop, 0, sma, sops, nsops, alter);
1275 void security_d_instantiate(struct dentry *dentry, struct inode *inode)
1277 if (unlikely(inode && IS_PRIVATE(inode)))
1279 call_void_hook(d_instantiate, dentry, inode);
1281 EXPORT_SYMBOL(security_d_instantiate);
1283 int security_getprocattr(struct task_struct *p, char *name, char **value)
1285 return call_int_hook(getprocattr, -EINVAL, p, name, value);
1288 int security_setprocattr(const char *name, void *value, size_t size)
1290 return call_int_hook(setprocattr, -EINVAL, name, value, size);
1293 int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1295 return call_int_hook(netlink_send, 0, sk, skb);
1298 int security_ismaclabel(const char *name)
1300 return call_int_hook(ismaclabel, 0, name);
1302 EXPORT_SYMBOL(security_ismaclabel);
1304 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1306 return call_int_hook(secid_to_secctx, -EOPNOTSUPP, secid, secdata,
1309 EXPORT_SYMBOL(security_secid_to_secctx);
1311 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
1314 return call_int_hook(secctx_to_secid, 0, secdata, seclen, secid);
1316 EXPORT_SYMBOL(security_secctx_to_secid);
1318 void security_release_secctx(char *secdata, u32 seclen)
1320 call_void_hook(release_secctx, secdata, seclen);
1322 EXPORT_SYMBOL(security_release_secctx);
1324 void security_inode_invalidate_secctx(struct inode *inode)
1326 call_void_hook(inode_invalidate_secctx, inode);
1328 EXPORT_SYMBOL(security_inode_invalidate_secctx);
1330 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1332 return call_int_hook(inode_notifysecctx, 0, inode, ctx, ctxlen);
1334 EXPORT_SYMBOL(security_inode_notifysecctx);
1336 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1338 return call_int_hook(inode_setsecctx, 0, dentry, ctx, ctxlen);
1340 EXPORT_SYMBOL(security_inode_setsecctx);
1342 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1344 return call_int_hook(inode_getsecctx, -EOPNOTSUPP, inode, ctx, ctxlen);
1346 EXPORT_SYMBOL(security_inode_getsecctx);
1348 #ifdef CONFIG_SECURITY_NETWORK
1350 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk)
1352 return call_int_hook(unix_stream_connect, 0, sock, other, newsk);
1354 EXPORT_SYMBOL(security_unix_stream_connect);
1356 int security_unix_may_send(struct socket *sock, struct socket *other)
1358 return call_int_hook(unix_may_send, 0, sock, other);
1360 EXPORT_SYMBOL(security_unix_may_send);
1362 int security_socket_create(int family, int type, int protocol, int kern)
1364 return call_int_hook(socket_create, 0, family, type, protocol, kern);
1367 int security_socket_post_create(struct socket *sock, int family,
1368 int type, int protocol, int kern)
1370 return call_int_hook(socket_post_create, 0, sock, family, type,
1374 int security_socket_socketpair(struct socket *socka, struct socket *sockb)
1376 return call_int_hook(socket_socketpair, 0, socka, sockb);
1378 EXPORT_SYMBOL(security_socket_socketpair);
1380 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
1382 return call_int_hook(socket_bind, 0, sock, address, addrlen);
1385 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
1387 return call_int_hook(socket_connect, 0, sock, address, addrlen);
1390 int security_socket_listen(struct socket *sock, int backlog)
1392 return call_int_hook(socket_listen, 0, sock, backlog);
1395 int security_socket_accept(struct socket *sock, struct socket *newsock)
1397 return call_int_hook(socket_accept, 0, sock, newsock);
1400 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1402 return call_int_hook(socket_sendmsg, 0, sock, msg, size);
1405 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1406 int size, int flags)
1408 return call_int_hook(socket_recvmsg, 0, sock, msg, size, flags);
1411 int security_socket_getsockname(struct socket *sock)
1413 return call_int_hook(socket_getsockname, 0, sock);
1416 int security_socket_getpeername(struct socket *sock)
1418 return call_int_hook(socket_getpeername, 0, sock);
1421 int security_socket_getsockopt(struct socket *sock, int level, int optname)
1423 return call_int_hook(socket_getsockopt, 0, sock, level, optname);
1426 int security_socket_setsockopt(struct socket *sock, int level, int optname)
1428 return call_int_hook(socket_setsockopt, 0, sock, level, optname);
1431 int security_socket_shutdown(struct socket *sock, int how)
1433 return call_int_hook(socket_shutdown, 0, sock, how);
1436 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1438 return call_int_hook(socket_sock_rcv_skb, 0, sk, skb);
1440 EXPORT_SYMBOL(security_sock_rcv_skb);
1442 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1443 int __user *optlen, unsigned len)
1445 return call_int_hook(socket_getpeersec_stream, -ENOPROTOOPT, sock,
1446 optval, optlen, len);
1449 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1451 return call_int_hook(socket_getpeersec_dgram, -ENOPROTOOPT, sock,
1454 EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1456 int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1458 return call_int_hook(sk_alloc_security, 0, sk, family, priority);
1461 void security_sk_free(struct sock *sk)
1463 call_void_hook(sk_free_security, sk);
1466 void security_sk_clone(const struct sock *sk, struct sock *newsk)
1468 call_void_hook(sk_clone_security, sk, newsk);
1470 EXPORT_SYMBOL(security_sk_clone);
1472 void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1474 call_void_hook(sk_getsecid, sk, &fl->flowi_secid);
1476 EXPORT_SYMBOL(security_sk_classify_flow);
1478 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1480 call_void_hook(req_classify_flow, req, fl);
1482 EXPORT_SYMBOL(security_req_classify_flow);
1484 void security_sock_graft(struct sock *sk, struct socket *parent)
1486 call_void_hook(sock_graft, sk, parent);
1488 EXPORT_SYMBOL(security_sock_graft);
1490 int security_inet_conn_request(struct sock *sk,
1491 struct sk_buff *skb, struct request_sock *req)
1493 return call_int_hook(inet_conn_request, 0, sk, skb, req);
1495 EXPORT_SYMBOL(security_inet_conn_request);
1497 void security_inet_csk_clone(struct sock *newsk,
1498 const struct request_sock *req)
1500 call_void_hook(inet_csk_clone, newsk, req);
1503 void security_inet_conn_established(struct sock *sk,
1504 struct sk_buff *skb)
1506 call_void_hook(inet_conn_established, sk, skb);
1508 EXPORT_SYMBOL(security_inet_conn_established);
1510 int security_secmark_relabel_packet(u32 secid)
1512 return call_int_hook(secmark_relabel_packet, 0, secid);
1514 EXPORT_SYMBOL(security_secmark_relabel_packet);
1516 void security_secmark_refcount_inc(void)
1518 call_void_hook(secmark_refcount_inc);
1520 EXPORT_SYMBOL(security_secmark_refcount_inc);
1522 void security_secmark_refcount_dec(void)
1524 call_void_hook(secmark_refcount_dec);
1526 EXPORT_SYMBOL(security_secmark_refcount_dec);
1528 int security_tun_dev_alloc_security(void **security)
1530 return call_int_hook(tun_dev_alloc_security, 0, security);
1532 EXPORT_SYMBOL(security_tun_dev_alloc_security);
1534 void security_tun_dev_free_security(void *security)
1536 call_void_hook(tun_dev_free_security, security);
1538 EXPORT_SYMBOL(security_tun_dev_free_security);
1540 int security_tun_dev_create(void)
1542 return call_int_hook(tun_dev_create, 0);
1544 EXPORT_SYMBOL(security_tun_dev_create);
1546 int security_tun_dev_attach_queue(void *security)
1548 return call_int_hook(tun_dev_attach_queue, 0, security);
1550 EXPORT_SYMBOL(security_tun_dev_attach_queue);
1552 int security_tun_dev_attach(struct sock *sk, void *security)
1554 return call_int_hook(tun_dev_attach, 0, sk, security);
1556 EXPORT_SYMBOL(security_tun_dev_attach);
1558 int security_tun_dev_open(void *security)
1560 return call_int_hook(tun_dev_open, 0, security);
1562 EXPORT_SYMBOL(security_tun_dev_open);
1564 int security_sctp_assoc_request(struct sctp_endpoint *ep, struct sk_buff *skb)
1566 return call_int_hook(sctp_assoc_request, 0, ep, skb);
1568 EXPORT_SYMBOL(security_sctp_assoc_request);
1570 int security_sctp_bind_connect(struct sock *sk, int optname,
1571 struct sockaddr *address, int addrlen)
1573 return call_int_hook(sctp_bind_connect, 0, sk, optname,
1576 EXPORT_SYMBOL(security_sctp_bind_connect);
1578 void security_sctp_sk_clone(struct sctp_endpoint *ep, struct sock *sk,
1581 call_void_hook(sctp_sk_clone, ep, sk, newsk);
1583 EXPORT_SYMBOL(security_sctp_sk_clone);
1585 #endif /* CONFIG_SECURITY_NETWORK */
1587 #ifdef CONFIG_SECURITY_INFINIBAND
1589 int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey)
1591 return call_int_hook(ib_pkey_access, 0, sec, subnet_prefix, pkey);
1593 EXPORT_SYMBOL(security_ib_pkey_access);
1595 int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num)
1597 return call_int_hook(ib_endport_manage_subnet, 0, sec, dev_name, port_num);
1599 EXPORT_SYMBOL(security_ib_endport_manage_subnet);
1601 int security_ib_alloc_security(void **sec)
1603 return call_int_hook(ib_alloc_security, 0, sec);
1605 EXPORT_SYMBOL(security_ib_alloc_security);
1607 void security_ib_free_security(void *sec)
1609 call_void_hook(ib_free_security, sec);
1611 EXPORT_SYMBOL(security_ib_free_security);
1612 #endif /* CONFIG_SECURITY_INFINIBAND */
1614 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1616 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1617 struct xfrm_user_sec_ctx *sec_ctx,
1620 return call_int_hook(xfrm_policy_alloc_security, 0, ctxp, sec_ctx, gfp);
1622 EXPORT_SYMBOL(security_xfrm_policy_alloc);
1624 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1625 struct xfrm_sec_ctx **new_ctxp)
1627 return call_int_hook(xfrm_policy_clone_security, 0, old_ctx, new_ctxp);
1630 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1632 call_void_hook(xfrm_policy_free_security, ctx);
1634 EXPORT_SYMBOL(security_xfrm_policy_free);
1636 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1638 return call_int_hook(xfrm_policy_delete_security, 0, ctx);
1641 int security_xfrm_state_alloc(struct xfrm_state *x,
1642 struct xfrm_user_sec_ctx *sec_ctx)
1644 return call_int_hook(xfrm_state_alloc, 0, x, sec_ctx);
1646 EXPORT_SYMBOL(security_xfrm_state_alloc);
1648 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1649 struct xfrm_sec_ctx *polsec, u32 secid)
1651 return call_int_hook(xfrm_state_alloc_acquire, 0, x, polsec, secid);
1654 int security_xfrm_state_delete(struct xfrm_state *x)
1656 return call_int_hook(xfrm_state_delete_security, 0, x);
1658 EXPORT_SYMBOL(security_xfrm_state_delete);
1660 void security_xfrm_state_free(struct xfrm_state *x)
1662 call_void_hook(xfrm_state_free_security, x);
1665 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1667 return call_int_hook(xfrm_policy_lookup, 0, ctx, fl_secid, dir);
1670 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1671 struct xfrm_policy *xp,
1672 const struct flowi *fl)
1674 struct security_hook_list *hp;
1678 * Since this function is expected to return 0 or 1, the judgment
1679 * becomes difficult if multiple LSMs supply this call. Fortunately,
1680 * we can use the first LSM's judgment because currently only SELinux
1681 * supplies this call.
1683 * For speed optimization, we explicitly break the loop rather than
1686 hlist_for_each_entry(hp, &security_hook_heads.xfrm_state_pol_flow_match,
1688 rc = hp->hook.xfrm_state_pol_flow_match(x, xp, fl);
1694 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1696 return call_int_hook(xfrm_decode_session, 0, skb, secid, 1);
1699 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1701 int rc = call_int_hook(xfrm_decode_session, 0, skb, &fl->flowi_secid,
1706 EXPORT_SYMBOL(security_skb_classify_flow);
1708 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1712 int security_key_alloc(struct key *key, const struct cred *cred,
1713 unsigned long flags)
1715 return call_int_hook(key_alloc, 0, key, cred, flags);
1718 void security_key_free(struct key *key)
1720 call_void_hook(key_free, key);
1723 int security_key_permission(key_ref_t key_ref,
1724 const struct cred *cred, unsigned perm)
1726 return call_int_hook(key_permission, 0, key_ref, cred, perm);
1729 int security_key_getsecurity(struct key *key, char **_buffer)
1732 return call_int_hook(key_getsecurity, 0, key, _buffer);
1735 #endif /* CONFIG_KEYS */
1739 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1741 return call_int_hook(audit_rule_init, 0, field, op, rulestr, lsmrule);
1744 int security_audit_rule_known(struct audit_krule *krule)
1746 return call_int_hook(audit_rule_known, 0, krule);
1749 void security_audit_rule_free(void *lsmrule)
1751 call_void_hook(audit_rule_free, lsmrule);
1754 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1755 struct audit_context *actx)
1757 return call_int_hook(audit_rule_match, 0, secid, field, op, lsmrule,
1760 #endif /* CONFIG_AUDIT */
1762 #ifdef CONFIG_BPF_SYSCALL
1763 int security_bpf(int cmd, union bpf_attr *attr, unsigned int size)
1765 return call_int_hook(bpf, 0, cmd, attr, size);
1767 int security_bpf_map(struct bpf_map *map, fmode_t fmode)
1769 return call_int_hook(bpf_map, 0, map, fmode);
1771 int security_bpf_prog(struct bpf_prog *prog)
1773 return call_int_hook(bpf_prog, 0, prog);
1775 int security_bpf_map_alloc(struct bpf_map *map)
1777 return call_int_hook(bpf_map_alloc_security, 0, map);
1779 int security_bpf_prog_alloc(struct bpf_prog_aux *aux)
1781 return call_int_hook(bpf_prog_alloc_security, 0, aux);
1783 void security_bpf_map_free(struct bpf_map *map)
1785 call_void_hook(bpf_map_free_security, map);
1787 void security_bpf_prog_free(struct bpf_prog_aux *aux)
1789 call_void_hook(bpf_prog_free_security, aux);
1791 #endif /* CONFIG_BPF_SYSCALL */